CN107089810A - A kind of aeroge modified expanded perlite insulation board and preparation method thereof - Google Patents
A kind of aeroge modified expanded perlite insulation board and preparation method thereof Download PDFInfo
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- CN107089810A CN107089810A CN201710277693.2A CN201710277693A CN107089810A CN 107089810 A CN107089810 A CN 107089810A CN 201710277693 A CN201710277693 A CN 201710277693A CN 107089810 A CN107089810 A CN 107089810A
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- 239000010451 perlite Substances 0.000 title claims abstract description 96
- 235000019362 perlite Nutrition 0.000 title claims abstract description 96
- 238000009413 insulation Methods 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000000463 material Substances 0.000 claims abstract description 64
- 238000002156 mixing Methods 0.000 claims abstract description 58
- 239000000843 powder Substances 0.000 claims abstract description 53
- 239000000543 intermediate Substances 0.000 claims abstract description 45
- 230000008961 swelling Effects 0.000 claims abstract description 45
- 238000003756 stirring Methods 0.000 claims abstract description 42
- 229920000742 Cotton Polymers 0.000 claims abstract description 39
- 239000004568 cement Substances 0.000 claims abstract description 37
- 229920002522 Wood fibre Polymers 0.000 claims abstract description 20
- 239000000919 ceramic Substances 0.000 claims abstract description 19
- 239000000835 fiber Substances 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- 239000002253 acid Substances 0.000 claims description 22
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 22
- 239000002904 solvent Substances 0.000 claims description 20
- 239000007921 spray Substances 0.000 claims description 17
- 239000007822 coupling agent Substances 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 16
- 230000032683 aging Effects 0.000 claims description 15
- 239000011521 glass Substances 0.000 claims description 15
- 238000010792 warming Methods 0.000 claims description 15
- 239000004115 Sodium Silicate Substances 0.000 claims description 14
- 238000005187 foaming Methods 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 14
- 150000002910 rare earth metals Chemical class 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 14
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 14
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 239000000839 emulsion Substances 0.000 claims description 12
- 238000004898 kneading Methods 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 229910001562 pearlite Inorganic materials 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 230000001404 mediated effect Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 230000004048 modification Effects 0.000 claims description 7
- 238000012986 modification Methods 0.000 claims description 7
- 229920002401 polyacrylamide Polymers 0.000 claims description 7
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 239000004604 Blowing Agent Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 238000004513 sizing Methods 0.000 claims description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 239000004088 foaming agent Substances 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 229920002978 Vinylon Polymers 0.000 claims 2
- 238000005452 bending Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000012774 insulation material Substances 0.000 description 14
- 230000008569 process Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 235000019353 potassium silicate Nutrition 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000011148 porous material Substances 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000007767 bonding agent Substances 0.000 description 6
- 238000004321 preservation Methods 0.000 description 6
- 239000011343 solid material Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 4
- 238000007664 blowing Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 150000000703 Cerium Chemical class 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 239000004965 Silica aerogel Substances 0.000 description 2
- 239000004964 aerogel Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 159000000013 aluminium salts Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- -1 epoxide alkane Chemical class 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 150000002603 lanthanum Chemical class 0.000 description 2
- POPACFLNWGUDSR-UHFFFAOYSA-N methoxy(trimethyl)silane Chemical compound CO[Si](C)(C)C POPACFLNWGUDSR-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- LWFWUJCJKPUZLV-UHFFFAOYSA-N n-trimethylsilylacetamide Chemical class CC(=O)N[Si](C)(C)C LWFWUJCJKPUZLV-UHFFFAOYSA-N 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 2
- JCVQKRGIASEUKR-UHFFFAOYSA-N triethoxy(phenyl)silane Chemical compound CCO[Si](OCC)(OCC)C1=CC=CC=C1 JCVQKRGIASEUKR-UHFFFAOYSA-N 0.000 description 2
- 150000003746 yttrium Chemical class 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 229920006328 Styrofoam Polymers 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 230000002742 anti-folding effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229960004424 carbon dioxide Drugs 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 125000001891 dimethoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- JJQZDUKDJDQPMQ-UHFFFAOYSA-N dimethoxy(dimethyl)silane Chemical compound CO[Si](C)(C)OC JJQZDUKDJDQPMQ-UHFFFAOYSA-N 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000002454 metastable transfer emission spectrometry Methods 0.000 description 1
- UIUXUFNYAYAMOE-UHFFFAOYSA-N methylsilane Chemical compound [SiH3]C UIUXUFNYAYAMOE-UHFFFAOYSA-N 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 210000000145 septum pellucidum Anatomy 0.000 description 1
- 230000036299 sexual function Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000008261 styrofoam Substances 0.000 description 1
- 238000000352 supercritical drying Methods 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/14—Minerals of vulcanic origin
- C04B14/18—Perlite
- C04B14/185—Perlite expanded
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/02—Cellulosic materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to energy-conserving and environment-protective field of material technology, more particularly to a kind of building and the aeroge modified expanded perlite insulation board of industrial energy saving insulation, including one or both of swelling perlite powder, aeroge intermediate, cement, batch mixing A, water, ceramic fiber cotton and wood fibre cotton, its preparation method is：By one or both of swelling perlite powder, aeroge intermediate, cement, ceramic fiber cotton and wood fibre cotton, it is well mixed, adds water and stir, add batch mixing A, it is compressing using mould after stirring, dried after drying to being completely dried.The present invention greatly reduces the thermal conductivity factor and moisture content of expanded perlite thermal-nsulation panel products, and bending resistance, tensile strength have obtained significantly being lifted.
Description
Technical field
The invention belongs to energy-conserving and environment-protective field of material technology, more particularly to a kind of building and the gas of industrial energy saving insulation
Gel modified expanded perlite insulation board and preparation method thereof.
Background technology
With the high speed development of social economy, the problem of global energy increasingly in short supply turns into world wide is improved
Existing energy utilization rate and the saving energy have caused the great attention of various countries.China is the barren country of an energy, because
This, the sustainable development of reasonable energy utilization, the saving energy to Chinese society has great importance.Employ new technology, new work
The high efficiency heat insulation material of skill development environment friendly is to save one of most effective most economical measure of the energy.
The country is in architecture exterior wall insulating materials at present, and the organic insulation material used includes polystyrene block, extrusion molding
Styrofoam, polyurethane foam etc..Organic insulation material heat-insulating property is superior, but fire line is poor, causes fire to take place frequently, and this
Intensity is reduced rapidly after class insulation material is heated in a fire, easy to fall off, causes unnecessary loss.And inorganic heat insulation material is anti-
Fiery grade can reach A1 grades, itself non-ignitable, not smoke and heat endurance is good, and intensity will not be also lost because of high temperature.Cause
And from saving the energy and ensureing the angle of life and property safety of people, reinforcement is ground to inorganic heat insulation material for building
Study carefully imperative.
The fire resisting of inorganic external wall thermal-insulation material, environmental protection, intensity are high, long lifespan, but often poor toughness, easily occur stress cutting
Split, thermal conductivity factor is high, cause heat-insulation layer blocked up, is badly in need of solution.
As one kind of inorganic heat insulation material, expanded perlite is with its lightweight (150~250kg/m of bulk density3), compared with
Low thermal conductivity factor (0.058~0.072W/mK), chemical stability good (pH=7), tolerable temperature scope wide (200~800
DEG C), non-ignitable (A grades of fire-protection rating), pollution-free, environmentally friendly, long lifespan the features such as paid close attention to by building exterior wall heat preserving industry.So
And, if the thermal conductivity factor of the material can be reduced further, the water absorption rate of material is reduced, strengthens its toughness and intensity, one will be entered
Step promotes application of the inorganic heat insulation material in terms of building heat preservation.
The Chinese patent of Patent No. 201510198543.3 discloses a kind of expansible pearlite heat-insulation plate and its system
Preparation Method, this method is handled by waterproofing agent of organosilicon and reduces the water absorption rate of sheet material, its volume water absorption rate can drop to 5% with
Under, but warming plate prepared by the method thermal conductivity factor in (m DEG C) Zuo You of 0.07W/, thermal conductivity factor is bigger than normal, heat-insulating property and
Toughness has much room for improvement with intensity.
The Chinese patent of Patent No. 201310577279.5 discloses expanded perlite wall thermal insulation board and its preparation
Method, the technology is using vitreous expanded perlite, inorganic bonding agent, suitable quantity of water as raw material, and prepared heat preservation plate material has preferably
Heat insulation effect, and the water resistance of material and mechanical strength do not improve significantly.
The content of the invention
In view of the technical drawbacks of the prior art, it is an object of the present invention to provide one kind can reduce for building swollen
The thermal conductivity factor of swollen pearlite heat-insulation plate, improves the aeroge modified expanded perlite insulation board and its system of bending resistance and tensile strength
Preparation Method.
The technical solution adopted in the present invention is：
A kind of aeroge modified expanded perlite insulation board, in parts by weight, includes the expansion of 30~80 parts by weight
Crushed crude pearlite, 2~20 parts by weight aeroge intermediates, the batch mixing A of 10~40 parts by weight, the cement of 2~20 parts by weight, 10~
One or both of water A, ceramic fiber cotton and wood fibre cotton of 40 parts by weight；
The batch mixing A in parts by weight, includes Ludox, the organosilicon of 10~50 parts by weight of 20~70 parts by weight
Modified acrylic acid emulsion, the water B of 70~130 parts by weight, the polyacrylamide of 0.05~1 parts by weight, the coupling of 0.5~10 parts by weight
Agent A；
The parts by weight sum of ceramic fiber cotton and wood fibre cotton addition is swelling perlite powder, in the middle of aeroge
The 0%~15% of body, cement weight number sum.
It is preferred that, the more excellent parts by weight of the ceramic fiber cotton addition are swelling perlite powder, aeroge intermediate, water
The 0.1%~5% of mud parts by weight sum；The more excellent parts by weight of the wood fibre cotton addition are swelling perlite powder, gas
The 0.5%~10% of gel intermediate, cement weight number sum.
It is preferred that, glass microballoon is also added with warming plate raw material, the parts by weight of the glass microballoon addition are swollen
Swollen crushed crude pearlite, aeroge intermediate, the 0.5%~12% of cement weight number sum.
It is preferred that, the ceramic fiber cotton, the length of wood fibre cotton are 1~3mm；The particle diameter of the swelling perlite powder
≤ 3mm, expansion multiple K0 >=20, density≤1g/cm3。
It is preferred that, water content≤70% of the Ludox, the solid content of the organosilicon-modified acrylic emulsion >=
60%；Ludox is dispersion liquid of the nano level silica dioxide granule in water, the solid content of organosilicon-modified acrylic emulsion
Finger emulsion in organosilicon-modified acrylic solid content content.
Specifically, the preparation method of the aeroge intermediate, comprises the following steps：
(1) mixed solution of silicon source and solvent is prepared
The sodium metasilicate for the number 3.0~4.0 that rubs is taken to be fitted into reactor, the water C progress for adding 1~3 times of sodium metasilicate quality is dilute
Release, reactor stirs 30min with 80~200r/min speed, through 200 mesh screens, obtains sodium silicate solution；
The aqueous solution of sodium metasilicate is commonly called as waterglass, and it is made up of the alkali metal and silica of different proportion, and it is changed
Formula is R2O·nSiO2, R in formula2O is alkali metal oxide, and n is the ratio of silica and alkali metal oxide molal quantity,
The referred to as number that rubs of waterglass, most commonly sodium silicate water glass Na2O·nSiO2；
(2) colloidal sol
A acid is taken, A acid metal salts and rare earth A hydrochlorates is added in A acid, after being well mixed, is added in the way of spray to step
Suddenly the sodium silicate solution that (1) is obtained；The material in reactor is carried out soon with 1200~2000r/min speed while spray
Speed stirring, the pH value for controlling sodium silicate solution is 1.5~3.0, and it is 15~30 nanometers to control its average pore size, obtains colloidal sol, this
60~120min of step used time；
It is preferred that, the A acid is sulfuric acid, hydrochloric acid, oxalic acid or nitric acid, is adjusted with water E to 6~15mol/L；
It is preferred that, the A acid metal salts are the sour zirconates of A or the sour aluminium salts of A；
It is preferred that, the rare earth A hydrochlorates are the sour cerium salt of A, the sour yttrium salts of A or the sour lanthanum salts of A；
A acid metal salts and the easy moisture absorption of rare earth A hydrochlorates, can cause metering inaccurate, so for its addition of accurate quantitative analysis
Amount, A acid metal salts described in above-mentioned steps (2) and rare earth A hydrochlorates are in terms of oxide, and both mol ratios are 100：1~6；Step
Suddenly in (2) in the oxide and sodium metasilicate of A acid metal salts silica mol ratio 2~5：100；For example, A acid metal salts are sulfuric acid
Aluminium, in terms of its oxide, i.e., using the mol ratio of silica in aluminum oxide and sodium metasilicate as 2~5：100；
(3) gel
Sodium hydroxide or ammoniacal liquor are taken, it is 10~11.5 to add water D and be diluted to pH value, is added in the way of spray to reactor
In；The material in reactor is quickly stirred with 1200~2000r/min speed while spray, when thing in reactor
When the pH value of material is 4.5~5.5, spray is terminated, gel, 80~180min of this step used time is obtained；
(4) aging
3~10h of stirring is continued with 20~50r/min speed in reactor, aging, control are carried out to the material in reactor
Material in reactor temperature processed is 35~50 DEG C；Prior art is usually to carry out aging by the way of standing, and takes 3~5 days,
Gel can't be stirred, it is to need to stand during prior art generally believes aging that reason, which is, and standing can
It is easy to the structure growth of aeroge；
(5) solvent is replaced
60~180min is persistently stirred in reactor, while adding same with aging material in step (4) reactor
The displacement solvent of volume, to displace remaining moisture；Prior art worries that stirring can destroy its structure, typically will not be in displacement
When be stirred, stewing process can be taken, caused time-consuming longer；The preparation method that the present invention is provided is stirred when solvent is replaced
60~180min is mixed, can greatly shorten period of a permutation, microstructure is not destroyed；
It is preferred that, described displacement solvent is one or more of mixtures of methanol, acetone, n-hexane or heptane；
(6) surface modification
Persistently stirred in reactor, while continuously adding and aging material same volume in step (4) reactor
Coupling agent B；By stirring 60~180min, obtain being coated with the middle of displacement solvent and coupling agent B rare earth toughness reinforcing silica aerogel
The aeroge intermediate added in body, as raw material；
The coupling agent B that above-mentioned steps (6) surface modification is added cements out the water in aeroge micropore, and coupling agent B is filled out
It is charged into aeroge micropore, it is possible to increase the stability of microcellular structure, improves the evenness of pore size；In addition, by pair plus
Enter different coupling agent B to carry out after surface modification, aeroge hydrophobicity, hydrophilic sexual function can be adjusted；
It is preferred that, coupling agent B described in above-mentioned steps (6) be HMDS, double (trimethylsilyl) acetamides,
Methoxytrimethylsilane, dimethoxydimethylsilane, phenyl triethoxysilane, phenyltrimethoxysila,e, vinyl
The one or more of trimethoxy silane, MTES and methyl trimethoxy epoxide alkane；
It is preferred that, the stirring described in above-mentioned steps (5) or step (6) is to be stirred in reactor；
It is preferred that, the stirring provides for reactor center and quickly forward stirs (high speed shear disk), reactor center
Periphery deflection plate is provided to realize.
The water A, water B, water C, water D are deionized water.
The aeroge intermediate of above-mentioned use normal temperature and pressure technique productions is a kind of light porous amorphous state of structure-controllable
Inorganic nano material, with continuous tridimensional network, its porosity is up to more than 80%, and average pore size is 20nm or so, than
Surface area is more than 500 ㎡/g, and density is less than 70kg/m3, thermal conductivity factor is less than 0.020W/ (mK) under normal temperature and pressure, than static
The thermal conductivity 0.022W/ (mK) of air is also low, is low cost rare at present, industrialization, the solid material of low heat conductivity.
A kind of preparation method of aeroge modified expanded perlite insulation board, including follow the steps below successively：
(1) primary election of swelling perlite powder：Sizing screening is carried out to expanded perlite, selects footpath grain≤3mm expansion precious
Pearl rock dust；
(2) separation of swelling perlite powder：Primary election swelling perlite powder is passed through into cyclone separator, selection expansion multiple K0
>=20, density≤1g/cm3Swelling perlite powder, as swelling perlite powder；
(3) batch mixing A preparation：Take the parts by weight of Ludox 20~70, the weight of organosilicon-modified acrylic emulsion 10~50
Part, the parts by weight of the parts by weight of water B70~130, the parts by weight of polyacrylamide 0.05~1, coupling agent A0.5~10, stir, turn
Speed is 500~1000r/min, and mixing time is that 30~50min obtains batch mixing A；Batch mixing A is bonding agent；
(4) preparation of total batch mixing：Take the swelling perlite powders of 30~80 parts by weight, 2~20 parts by weight aeroge intermediates,
The cement of 2~20 parts by weight, parts by weight sum are swelling perlite powder and aeroge intermediate and cement weight number sum
One or both of 0%~15% ceramic fiber cotton and wood fibre cotton, are mediated using kneader, and kneader rotating speed is 50
~200r/min, kneading time is 20~50min, adds 10~40 parts by weight water A, is mediated using kneader, kneader rotating speed
For 50~200r/min, kneading time is 20~50min, is eventually adding the batch mixing A of 10~40 parts by weight, stirs, and is stirred
500~1000r/min of rotating speed, mixing time is 30~50min, obtains total batch mixing；
(5) preparation of blank：Using mould that total batch mixing is compressing, total batch mixing fills and leads up mould, pressure be 0.4~
1.2Kpa/㎝3, compression ratio control under conditions of 1.1~1.8, be molded, now institute's moulding material be aeroge expansion
Pearlite insulation sheet material blank；
(6) preparation of product：Above-mentioned blank, blank is placed in 95~105 DEG C of environment, and then 5~45min of constant temperature drying dries in the air
Shining one week to be completely dried, and obtain aeroge expanded perlite thermal-nsulation plate product；The process of constant temperature drying makes cement quick
Reaction, setting rate is fast, it is reached intensity requirement as early as possible.
It is preferred that, in the step (4), swelling perlite powder, aeroge intermediate, cement, ceramic fiber cotton with it is wooden
Before one or both of cellucotton is mediated using kneader, it also added in its raw material in swelling perlite powder, aeroge
The glass microballoon of mesosome, cement weight number sum 0.5%~12%.
It is preferred that, total batch mixing carries out foaming processing before compressing made from the step (5), and processing procedure is：
Physical blowing agent is added in total batch mixing and foaming processing is carried out using foaming machine, the parts by weight that foaming agent is added are cement weight
The 0.1%~1.5% of number is measured, kneader is inputted in foaming, kneader rotating speed is 50~200r/min, and kneading time is 20
~50min, kneading is compressing with mould after finishing.
The mixing of all solid materials all stirs material with planetary mixer in the preparation process of warming plate, containing liquids
The stirring of material is stirred using kneader.
The present invention operation principle be：
Aeroge is also known as blue smoke, and it has following characteristic：1st, some infinite many nano-pores are distributed with the inside of aeroge
And air vent wall, air can not flow freely in nanometer stomata, relatively adsorb on air vent wall, and aerogel material is in class
Likelihood dummy status, effectively reduces convection heat transfer' heat-transfer by convection, and heat is transmitted in solid material and can transmitted along air vent wall；These air vent wall structures
Into the heat conduction path of infinite length, this will substantially reduce heat conduction；2nd, there is infinite many gas inside aeroge intermediate
Hole wall, air vent wall is equivalent to infinite many thermal baffles, it is possible to achieve the reflection to light and heat, is passed so that radiation is greatly lowered
Heat；3rd, aeroge can effectively pass through sunshine, and prevent the infrared emanation of environment temperature, as a kind of preferable septum pellucidum
Hot material, substantially reduces the thermal conductivity of material；
Based on the characteristic of above-mentioned aeroge, suitable bonding agent is selected, by aeroge and industry, building heat preservation warming plate
Making material is combined, and can not only strengthen industry, the mechanical strength of building heat preservation warming plate, additionally it is possible to effectively reduce its heat conduction
Coefficient, improves its insulation ability, improves hydrophobic rate, improve industry and building heat preservation with insulation plate surface and wall or other
The binding ability of material.
Compared with traditional handicraft, the beneficial effects of the present invention are：
1st, at present, although organic insulation material thermal conductivity ratio is relatively low, it is due to that its fire resistance is poor, limits
It is applied；Expanded perlite thermal-nsulation plate is inorganic heat insulation material, and the thermal conductivity factor of best expanded perlite thermal-nsulation plate exists
How more than 0.058w/m.k, be reduced to below 0.043w/m.k by its thermal conductivity factor and can reach that the fire prevention of A1 ranks is always tired
Disturb the technical barrier of those skilled in the art；
Products obtained therefrom of the present invention is inorganic heat insulation material, and aeroge intermediate is added to expanded perlite thermal-nsulation by the present invention
In plate, due to the presence of nanometer three-dimensional structure in aeroge intermediate, obtained aeroge expanded perlite thermal-nsulation sheet material possesses
The incomparable heat-proof quality of traditional material, the thermal conductivity factor of product can reach 0.035~0.045w/m.k, realize
Fire prevention A1 ranks, the low thermal conductivity of environment protection architecture insulation material；
2nd, aeroge is added in the form of powder in existing warming plate, and aerogel powder has to pass through in preparation process
Drying process, its drying process is to be completed at high temperature under high pressure using supercritical drying process, and its working condition is harsh, and technique is multiple
Miscellaneous, dangerous big, process units investment is big, and preparation efficiency is low, and its raw material is based on the silanol of high price, and cost is high；
Aeroge in warming plate of the present invention is added in the form of aeroge intermediate, without drying process step, raw
Produce cost low；In addition, aeroge intermediate is to prepare at normal temperatures and pressures, technique simple and stable is safe, technical process from
Traditional 300h is down to 30h, and the process units investment of same production capacity is only the 1/20 of conventional method, and the prices of raw materials compare traditional silicon
Source is low more than 100 times, and product cost is only the 1/10 of conventional method；
3rd, product moisture content is less than 0.2% in the present invention, and water absorbing properties are significantly reduced, and water resistance is significantly improved；
4th, the aeroge expanded perlite thermal-nsulation sheet material in the present invention increases building simultaneously in thinned insulation material thickness
Usable floor area, it is highly beneficial to expanding the small apartment interior space；
5th, product maintains the advantages such as inexpensive, nuisanceless, low unit weight, A1 grades of fire prevention, long lifespan, environmental protection in the present invention；
6th, added in sheet material raw material after expanded perlite, considerably reduce the thermal conductivity factor of expanded perlite；
7th, the wood fibre cotton used in the present invention plays a part of enhancing effect of heat insulation and insulation, pottery for porous material
Porcelain cellucotton plays a part of integrally stretching；
8th, glass microballoon can be added selectively in preparing raw material of the invention, because glass microballoon is porous material, be added
Plus the effect of heat insulation of warming plate can be further enhanced after glass microballoon, if glass microballoon is omitted in preparing raw material can save production
Cost；
9th, batch mixing A is bonding agent, and because the addition of bonding agent substantially increases the toughness of the heat preservation plate material, rupture strength can
To reach 0.36Mpa, tensile strength is more than 0.1Mpa, eliminates the material caused by construction material coefficient of expansion difference
Stress cracking；
10th, reclaimed water of the present invention selects deionized water, and the low cost of deionized water is conducive to further reducing production cost；
11st, product is cement base in the present invention, and expanded perlite needs to be bonded together by cement, if using water merely
Mud is bonded, and thermal conductivity factor is higher；Novelty of the present invention introduces the mode of physical blowing, and micron level is added in cement
Stomata, makes cement composition loose, nano level stomata is contained in aeroge, expanded perlite, glass microballoon, wood fibre cotton are equal
To include leachy porous material, the mode that a kind of various sizes of level of stomatal limiting value is matched somebody with somebody further enhances the heat-insulated of product
Effect；
12nd, traditional cement foamed mode foams for chemical method, and chemical blowing one kind is to produce two using aluminium powder and alkali
Carbonoxide foams, and another is to use dioxygen Water blown, but the mode of chemical blowing must have corresponding environment and temperature, no
It is adapted to large batch of commercial application；Cement in the present invention carries out physical blowing using physical blowing agent, to environment and temperature
It is required that not strict, the bubble sent is very thin and has certain viscosity, not fragile, can directly add in plate and use, and is adapted to large quantities of
The commercial application of amount；
13rd, total batch mixing is molded compared with the not foamed processing direct pressing shaping of total batch mixing by foaming processing is re-compacted,
Its thermal conductivity factor declines 0.005w/m.k；
14th, in the preparation process of warming plate, the stirring of material uses conventional concrete mixer, and its paddle is in spiral shell
Shape is revolved, the uneven phenomenon of material stirring easily occurs；Solid material stirs material, rotating speed using planetary mixer in the present invention
Fast and Multi-angle turnover material, it is to avoid cement lamination occurs very much greatly with other material ratio heavy phases difference, material mixing
Highly uniform, the product quality produced is homogeneous, and the performance performance such as insulation, anti-folding, bending resistance is more preferably；
15th, the compression ratio of traditional warming plate is controlled 1.2；Compression ratio control 1.3~1.6, is passed through control by the present invention
Compression ratio processed effectively controls panel density, ensures that sheet material has good mechanical strength, compressive property, bending strength, tension strong
Degree；
16th, the operation principle that in the present invention prepared by aeroge intermediate is：In the preparation method of aeroge intermediate, gel
During the A acid metal salts and rare earth A hydrochlorates that add, toughness reinforcing can be reached and the effect of silica aerogel heat resistance is improved；Aging
It is to be carried out in the state of stirring with solvent swap step, substantially increases reaction efficiency, have compressed the process time, is adapted to production
Industry；
17th, in the present invention in the middle of aeroge preparation compared with prior art, its advantage have it is following some：
(1) in recent years, there are some literary on the relevant report and patent for preparing aeroge under normal temperature differential pressure in the prior art
Offer, but be to rest on laboratory preparatory phase mostly, technical process is longer, while process implementing narrow limits, it is difficult to realize
Large-scale industrialized production and application；The invention provides the preparation method under normal temperature and pressure, prior art geo-stationary is changed
Technique, apply in critical process process and stir, speeded up to the hydrolysis, polycondensation and modification of aeroge, realize conjunction in 30h
Technique into aeroge intermediate, there is provided a kind of method that industrial batch prepares rare earth toughness reinforcing aeroge, is aeroge
A large amount of manufacture and use provide premise；
(2) it is that aeroge has a network structure one of the reason for develop to hinder aeroge in the prior art, but the structure
Edge it is relatively thin, more crisp, compression strength is low, easily be pressurized cave in, cause performance unstable；Present invention addition rare earth A hydrochlorates
With A acid metal salts, the toughness of the material is improved, the intensity of aeroge is improved；
(3) temperature in use of aeroge prepared by prior art is relatively low, typically used below also more stable at 500 DEG C,
More than 500 DEG C can cause the internal structure change of aeroge, cause thermal conductivity factor to decline；The present invention addition rare earth A hydrochlorates and A
Acid metal salt, improves the heat resistance of the material, improves the heat resisting temperature of aeroge.
18th, the 3-D solid structure of aeroge plays an important role during the performance of its performance, if in aeroge
Hole be combined agent and block and can not just play a role；
Traditional aeroge is prepared at high temperature under high pressure, if the later stage is not specially treated, porous three-dimensional space
Easily it is combined agent or other raw materials is blocked and failed, and then it is lost effect of heat insulation, in addition, the porous three-dimensional of aeroge is vertical
Body spaces union can play more preferable heat-insulated effect together, can found the three-dimensional inside aeroge after being separated by binding agent
Isolated island is isolated into body space, and then produces island effect, reduces the effect of heat insulation of aeroge；
Containing displacement solvent in the aeroge intermediate prepared using method in the present invention, displacement solvent is occupied in aeroge
Between porous three-dimensional space in vivo, bonding agent or other raw materials can not invade it is porous in occupy its three-dimensional space, protect
In warm plate drying process, displacement solvent volatilization, solvent volatilization, which is finished, is maintained to porous 3 D stereo in rear aeroge
Structure, overcome hole be blocked caused by failure and island effect, therefore, its heat-proof quality it is stronger.
In a word, compared with conventional expanded pearlite insulation panel products, the present invention greatly reduces expanded perlite thermal-nsulation
The thermal conductivity factor and water absorption rate of panel products, bending resistance, tensile strength have obtained significantly being lifted, and maintain low cost, A1
The advantages such as level fire prevention, are building energy conservation, there is provided a kind of new material for environmental protection.
Embodiment
With reference to embodiment, the invention will be further described：
First, embodiment 1~8
1st, a kind of formula of aeroge modified expanded perlite insulation board, in parts by weight, including 30~80 weight
The swelling perlite powder, 2~20 parts by weight aeroge intermediates, the batch mixing A of 10~40 parts by weight, the water of 2~20 parts by weight of part
One or both of mud, the water A of 10~40 parts by weight, ceramic fiber cotton and wood fibre cotton, each raw material in embodiment 1~8
Specific consumption referring to table 1；
In parts by weight, including the Ludox of 20~70 parts by weight, 10~50 parts by weight is organic-silicon-modified by batch mixing A
Acrylic emulsion, the water B of 70~130 parts by weight, the polyacrylamide of 0.05~1 parts by weight, 0.5~10 parts by weight coupling agent
Batch mixing A component detail is referring to table 2 in A, embodiment 1~8；
The parts by weight sum that ceramic fiber cotton and wood fibre cotton are added is swelling perlite powder, aeroge intermediate,
The 0%~15% of cement weight number sum；
In warming plate raw material also be added with glass microballoon, glass microballoon addition parts by weight for swelling perlite powder,
The 0.5%~12% of aeroge intermediate, cement weight number sum；
Wherein, ceramic fiber cotton, the length of wood fibre cotton are 1~3mm；Particle diameter≤3mm of swelling perlite powder, it is swollen
Swollen multiple K0 >=20, density≤1g/cm3；Water content≤70% of Ludox, the solid content of organosilicon-modified acrylic emulsion >=
60%, water A, water B are deionized water.
The raw material detail list of aeroge modified expanded perlite insulation board in the embodiment 1~8 of table 1
Batch mixing component A is detailed in the embodiment 1~8 of table 2
2nd, a kind of preparation method of aeroge modified expanded perlite insulation board, is prepared, in each step in accordance with the following steps
The concrete numerical value of parameter is referring to table 3：
(1) primary election of swelling perlite powder：Sizing screening is carried out to expanded perlite, selects footpath grain≤3mm expansion precious
Pearl rock dust；
(2) separation of swelling perlite powder：Primary election swelling perlite powder is passed through into cyclone separator, selection expansion multiple K0
>=20, density≤1g/cm3Swelling perlite powder, as swelling perlite powder；
(3) batch mixing A preparation：Take the parts by weight of Ludox 20~70, the parts by weight of organosilicon-modified acrylic emulsion 10~50,
The parts by weight of the parts by weight of water B70~130, the parts by weight of polyacrylamide 0.05~1, coupling agent A0.5~10, stir, stir
Rotating speed is 500~1000r/min, and mixing time is 30~50min, obtains batch mixing A；
(4) preparation of total batch mixing：Take the swelling perlite powders of 30~80 parts by weight, 2~20 parts by weight aeroge intermediates,
The cement of 2~20 parts by weight, parts by weight sum are swelling perlite powder and aeroge intermediate and cement weight number sum
One or both of 0%~15% ceramic fiber cotton and wood fibre cotton, selectivity addition swelling perlite powder, aeroge
The glass microballoon of intermediate, cement weight number sum 0.5%~12%, is mediated for the first time using kneader, and kneader turns
Speed is 50~200r/min, and kneading time is 20~50min, adds the water A of 10~40 parts by weight, is carried out using kneader secondary
Mediate, kneader rotating speed is 50~200 r/min, kneading time is 20~50min, is eventually adding the batch mixing of 10~40 parts by weight
A, stirs, 500~1000r/min of speed of agitator, and mixing time is 30~50min, obtains total batch mixing；
(5) foaming is handled：Physical blowing agent is added in total batch mixing and foaming processing is carried out using foaming machine, foaming agent adds
The parts by weight entered are the 0.1%~1.5% of cement weight number, and kneader input in foaming, kneader rotating speed for 50~
200r/min, kneading time is 20~50min, and kneading is compressing with mould after finishing；
(6) preparation of blank：Using mould that total batch mixing is compressing, total batch mixing fills and leads up mould, pressure be 0.4~
1.2Kpa/㎝3, compression ratio control under conditions of 1.1~1.8, be molded, now institute's moulding material be aeroge expansion
Pearlite insulation sheet material blank；
(7) preparation of product：Above-mentioned blank is placed in 95~105 DEG C of environment, and then 5~45min of constant temperature drying dries one week
It can be completely dried, obtain aeroge expanded perlite thermal-nsulation plate product.
The mixing of all solid materials all stirs material with planetary mixer in the preparation process of warming plate, containing liquids
The stirring of material is stirred using kneader.
The specific number of parameter in each step of preparation method of the aeroge modified expanded perlite insulation board of 3 embodiment of table 1~8
Value
3rd, the specific preparation process of the aeroge intermediate used in aeroge modified expanded perlite insulation board is as follows：
(1) mixed solution of silicon source and solvent is prepared
The waterglass for the number 3.0~4.0 that rubs is taken to be fitted into reactor, the water C progress for adding 1~3 times of waterglass quality is dilute
Release, reactor stirs 30min with 80~200r/min speed, through 200 mesh screens, obtains water glass solution；
(2) colloidal sol
A acid is taken, A acid metal salts and rare earth A hydrochlorates is added in A acid, after being well mixed, is added in the way of spray to step
Suddenly the water glass solution that (1) is obtained；The material in reactor is carried out soon with 1200~2000r/min speed while spray
Speed stirring, control ph to 1.5~3.0 stops spray, and spray time is controlled in 60~120min, obtains colloidal sol；
A acid is sulfuric acid, hydrochloric acid, oxalic acid or nitric acid, and its concentration is adjusted with water E to 6~15mol/L；
A acid metal salts are the sour zirconates of A or the sour aluminium salts of A, and rare earth A hydrochlorates are the sour cerium salt of A, the sour yttrium salts of A or the sour lanthanum salts of A；
A acid metal salts and rare earth A hydrochlorates are in terms of oxide, and both mol ratios are 100：1~6；
The mol ratio 2~5 of silica in the oxide and water glass solution of A acid metal salts：100；
(3) gel
Sodium hydroxide or ammoniacal liquor are taken, it is 10~11.5 to add water D and be diluted to pH value, is added in the way of spray to step
(2) in reactor in gained colloidal sol；The material in reactor is carried out soon with 1200~2000r/min speed while spray
Speed stirring, when the pH value of material in reactor is 4.5~5.5, sprays 80~180min of used time, obtains gel；
(4) aging
3~10h of stirring is continued with 20~50r/min speed in reactor, aging, control are carried out to the material in reactor
Material in reactor temperature processed is 35~50 DEG C；
(5) solvent is replaced
The displacement solvent with aging material same volume in step (4) reactor is added while stirring in reactor, with
Remaining moisture is displaced, 60~180min is stirred；
Displacement solvent is one or more of mixtures of methanol, acetone, n-hexane or heptane；
(6) surface modification
Persistently stirred in reactor, while continuously adding and aging material same volume in step (4) reactor
Coupling agent B, obtains being coated with displacement solvent and coupling agent B rare earth toughness reinforcing silicon by stirring after 60~180min, surface modification
The aeroge intermediate added in aeroge intermediate, as raw material；
Stirring in step (5) or step (6) is that heart offer is quickly forward stirred in a kettle., reactor center
Periphery provides deflection plate；
Coupling agent is HMDS, double (trimethylsilyl) acetamides, methoxytrimethylsilane, dimethoxy two
Methyl-monosilane, phenyl triethoxysilane, phenyltrimethoxysila,e, vinyltrimethoxy silane, methyltriethoxy silane
One or more of mixtures of alkane and methyl trimethoxy epoxide alkane；Water C, water D, water E are deionized water.
The variable parameter and concrete numerical value of each embodiment are shown in Table 4 in the preparation method of aeroge intermediate.
The design parameter that step (1)~(6) are used in the preparation method of aeroge intermediate in the embodiment 1~8 of table 4
Embodiment 9~16
The contrast groups embodiment 9~16 of embodiment 1~8 is set respectively, and embodiment 9~16 is in the preparation process of warming plate
Not foamed processing procedure；Remainder, the be the same as Example 1 of embodiment 9, the be the same as Example 2 of embodiment 10, the be the same as Example of embodiment 11
3, the be the same as Example 4 of embodiment 12, the be the same as Example 5 of embodiment 13, the be the same as Example 6 of embodiment 14, the be the same as Example 7 of embodiment 15 is real
Apply the be the same as Example 8 of example 16；
In embodiment 9~16, the preparation method of aeroge modified expanded perlite insulation board is carried out in accordance with the following steps,
The concrete numerical value of parameter is referring to table 5 in each step：
(1) primary election of swelling perlite powder：Sizing screening is carried out to expanded perlite, selects footpath grain≤3mm expansion precious
Pearl rock dust；
(2) separation of swelling perlite powder：Primary election swelling perlite powder is passed through into cyclone separator, selection expansion multiple K0
>=20, density≤1g/cm3Swelling perlite powder, as swelling perlite powder；
(3) batch mixing A preparation：Take the parts by weight of Ludox 20~70, the weight of organosilicon-modified acrylic emulsion 10~50
Part, the parts by weight of the parts by weight of water B70~130, the parts by weight of polyacrylamide 0.05~1, coupling agent A0.5~10, stir, stir
Mix rotating speed is 500~1000r/min, and mixing time is 30~50min, obtains batch mixing A；
(4) preparation of total batch mixing：Take the swelling perlite powders of 30~80 parts by weight, 2~20 parts by weight aeroge intermediates,
The cement of 2~20 parts by weight, parts by weight sum are swelling perlite powder and aeroge intermediate and cement weight number sum
One or both of 0%~15% ceramic fiber cotton and wood fibre cotton, selectivity addition swelling perlite powder, aeroge
The glass microballoon of intermediate, cement weight number sum 0.5%~12%, is mediated for the first time using kneader, and kneader turns
Speed is 50~200r/min, and kneading time is 20~50min, adds the water A of 10~40 parts by weight, is carried out using kneader secondary
Mediate, kneader rotating speed is 50~200 r/min, kneading time is 20~50min, is eventually adding the batch mixing of 10~40 parts by weight
A, stirs, 500~1000r/min of speed of agitator, and mixing time is 30~50min, obtains total batch mixing；
(5) preparation of blank：Using mould that total batch mixing is compressing, total batch mixing fills and leads up mould, pressure be 0.4~
1.2Kpa/㎝3, compression ratio control under conditions of 1.1~1.8, be molded, now institute's moulding material be aeroge expansion
Pearlite insulation sheet material blank；
(6) preparation of product：Above-mentioned blank is placed in 95~105 DEG C of environment, and then 5~45min of constant temperature drying dries one week
It can be completely dried, obtain aeroge expanded perlite thermal-nsulation plate product.
The mixing of all solid materials all stirs material with planetary mixer in the preparation process of warming plate, containing liquids
The stirring of material is stirred using kneader.
Parameter is specific in each step of preparation method of the aeroge modified expanded perlite insulation board of 5 embodiment of table 9~16
Numerical value
2nd, performance detection
Product of the present invention is plate-like, and the product in embodiment 1~16 is detected.
(1) method is entered to the thermal conductivity factor of the insulation panel products in embodiment 1~16 according to specified in GB/T 10294
Row detection；
(2) method is examined to the tensile strength of the insulation panel products in embodiment 1~16 according to specified in JGJ 144
Survey；
(3) method is entered to the rupture strength of the insulation panel products in embodiment 1~16 according to specified in GB/T 11969
Row detection；
(4) water resistance is detected：Method is to the insulation panel products in embodiment 1~16 according to specified in GB/T 11969
Moisture content detected；
(5) method is examined to the combustibility of the insulation panel products in embodiment 1~16 according to specified in GB 8624
Survey；
Specific testing result is shown in Table 6, table 7.
The testing result of product in the embodiment 1~8 of table 6
The testing result of product in the embodiment 9~16 of table 7
From table 6, table 7, the thermal conductivity factor of product of the present invention can reach 0.035~0.045w/m.k, at other
In the case of part all same, total batch mixing is after foaming is handled, and the thermal conductivity factor of final products reduces 0.005w/m.k；This hair
The rupture strength of bright product can reach 0.36Mpa, and tensile strength is more than 0.1Mpa and realizes A1 grades of fire prevention；In the present invention
Product moisture content is less than 0.2%, and water absorbing properties are significantly reduced, and water resistance is significantly improved.
The application method of product is identical with the application method of conventional vacuum plate in the present invention.
16 embodiments to the present invention are described in detail above, but the content is only the preferable implementation of the present invention
Example, it is impossible to be considered as the practical range for limiting the present invention.All equivalent changes made according to the present patent application scope and improvement
Deng within the patent covering scope that all should still belong to the present invention.
Claims (10)
1. a kind of aeroge modified expanded perlite insulation board, it is characterised in that：In parts by weight, including 30~80 weight
The swelling perlite powder, 2~20 parts by weight aeroge intermediates, the batch mixing A of 10~40 parts by weight, the water of 2~20 parts by weight of part
One or both of mud, the water A of 10~40 parts by weight, ceramic fiber cotton and wood fibre cotton；
In parts by weight, including the Ludox of 20~70 parts by weight, 10~50 parts by weight is organic-silicon-modified by the batch mixing A
Acrylic emulsion, the water B of 70~130 parts by weight, the polyacrylamide of 0.05~1 parts by weight, 0.5~10 parts by weight coupling agent A；
The parts by weight sum that the ceramic fiber cotton and wood fibre cotton are added is swelling perlite powder, aeroge intermediate,
The 0%~15% of cement weight number sum.
2. a kind of aeroge modified expanded perlite insulation board according to claim 1, it is characterised in that：The ceramics are fine
Vinylon and cotton blend addition more excellent parts by weight for swelling perlite powder, aeroge intermediate, cement weight number sum 0.1%~
5%；The more excellent parts by weight of the wood fibre cotton addition are swelling perlite powder, aeroge intermediate, cement weight number
The 0.5%~10% of sum.
3. a kind of aeroge modified expanded perlite insulation board according to claim 1, it is characterised in that：Warming plate former material
Glass microballoon is also added with material, the parts by weight of the glass microballoon addition are swelling perlite powder, aeroge intermediate, water
The 0.5%~12% of mud parts by weight sum.
4. a kind of aeroge modified expanded perlite insulation board according to claim 1, it is characterised in that：The ceramics are fine
Vinylon and cotton blend, the length of wood fibre cotton are 1~3mm；Particle diameter≤3mm of the swelling perlite powder, expansion multiple K0 >=20, density
≤1g/cm3。
5. a kind of aeroge modified expanded perlite insulation board according to claim 1, it is characterised in that：The Ludox
Water content≤70%, solid content >=60% of the organosilicon-modified acrylic emulsion.
6. a kind of aeroge modified expanded perlite insulation board according to claim 1, it is characterised in that：The aeroge
The preparation method of intermediate, comprises the following steps：
(1) mixed solution of silicon source and solvent is prepared
Take the sodium metasilicate for the number 3.0~4.0 that rubs to be fitted into reactor, the water C for adding 1~3 times of sodium metasilicate quality is diluted, react
Kettle stirs 30min with 80~200r/min speed, through 200 mesh screens, obtains sodium silicate solution；
(2) colloidal sol
A acid is taken, A acid metal salts and rare earth A hydrochlorates is added in A acid, after being well mixed, is added in the way of spray to step
(1) sodium silicate solution obtained；The material in reactor is carried out quickly with 1200~2000r/min speed while spray
Stirring, the pH value for controlling sodium silicate solution is 1.5~3.0, obtains colloidal sol；
(3) gel
Sodium hydroxide or ammoniacal liquor are taken, it is 10~11.5 to add water D and be diluted to pH value, is added in the way of spray into reactor；
The material in reactor is quickly stirred with 1200~2000r/min speed while spray, works as material in reactor
PH value be 4.5~5.5 when, terminate spray, obtain gel；
(4) aging
3~10h of stirring is continued with 20~50r/min speed in reactor, aging is carried out to the material in reactor, control is anti-
It is 35~50 degrees Celsius to answer temperature of charge in kettle；
(5) solvent is replaced
60~180min is persistently stirred in reactor, while adding and aging material same volume in step (4) reactor
Displacement solvent, to displace remaining moisture；
(6) surface modification
Persistently stirred in reactor, while continuously adding the coupling with aging material same volume in step (4) reactor
Agent B；By stirring 60~180min, obtain being coated with displacement solvent and coupling agent B aeroge intermediate.
7. a kind of aeroge modified expanded perlite insulation board according to claim 6, it is characterised in that：The water A, water
B, water C, water D are deionized water.
8. a kind of preparation method of aeroge modified expanded perlite insulation board, it is characterised in that including carrying out following step successively
Suddenly：
(1) primary election of swelling perlite powder：Sizing screening is carried out to expanded perlite, footpath grain≤3mm expanded perlite is selected
Powder；
(2) separation of swelling perlite powder：The swelling perlite powder of primary election is passed through into cyclone separator, selection expansion multiple K0 >=
20th, density≤1g/cm3Swelling perlite powder；
(3) batch mixing A preparation：Take the parts by weight of Ludox 20~70, the parts by weight of organosilicon-modified acrylic emulsion 10~50, water
The parts by weight of the parts by weight of B70~130, the parts by weight of polyacrylamide 0.05~1, coupling agent A0.5~10, stir, obtain batch mixing A；
(4) preparation of total batch mixing：Take the swelling perlite powders of 30~80 parts by weight, 2~20 parts by weight aeroge intermediates, 2~
The cement of 20 parts by weight, parts by weight sum are swelling perlite powder and aeroge intermediate and cement weight number sum 0%
One or both of~15% ceramic fiber cotton and wood fibre cotton, are mediated using kneader, add 10~40 parts by weight
Water A, kneader mediate, be eventually adding the batch mixing A of 10~40 parts by weight, stir, obtain total batch mixing；
(5) preparation of blank：Using mould that total batch mixing is compressing, total batch mixing fills and leads up mould, pressure be 0.4~
1.2Kpa/㎝3, compression ratio control under conditions of 1.1~1.8, be molded, now institute's moulding material be aeroge expansion
Pearlite insulation sheet material blank；
(6) preparation of product：Dried after above-mentioned blank, drying to being completely dried, obtain aeroge expanded perlite thermal-nsulation
Plate product.
9. a kind of preparation method of aeroge modified expanded perlite insulation board according to claim 8, it is characterised in that：
In the step (4), swelling perlite powder, aeroge intermediate, cement, ceramic fiber cotton and one kind in wood fibre cotton or
Before two kinds are mediated using kneader, swelling perlite powder, aeroge intermediate, cement weight number are also added in its raw material
The glass microballoon of sum 0.5%~12%.
10. a kind of preparation method of aeroge modified expanded perlite insulation board according to claim 8, its feature exists
In：Total batch mixing carries out foaming processing before compressing made from the step (5), and processing procedure is：Add in total batch mixing
Enter physical blowing agent and foaming processing is carried out using foaming machine, the parts by weight that foaming agent is added are cement weight number
0.1%~1.5%, kneader kneading is inputted in foaming, kneading is compressing with mould after finishing.
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| CN107089810B (en) | 2018-10-16 |
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