CN116285439A - Barreled colored sand easy to scrub and preparation method thereof - Google Patents
Barreled colored sand easy to scrub and preparation method thereof Download PDFInfo
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- CN116285439A CN116285439A CN202310148169.0A CN202310148169A CN116285439A CN 116285439 A CN116285439 A CN 116285439A CN 202310148169 A CN202310148169 A CN 202310148169A CN 116285439 A CN116285439 A CN 116285439A
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- 239000004576 sand Substances 0.000 title claims abstract description 63
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000003822 epoxy resin Substances 0.000 claims abstract description 59
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 59
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 47
- 239000004593 Epoxy Substances 0.000 claims abstract description 34
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 30
- 239000003085 diluting agent Substances 0.000 claims abstract description 13
- 239000013008 thixotropic agent Substances 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 63
- 239000002202 Polyethylene glycol Substances 0.000 claims description 25
- 229920001223 polyethylene glycol Polymers 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 24
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 19
- -1 phenolic amine Chemical class 0.000 claims description 19
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims description 16
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 13
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 239000004952 Polyamide Substances 0.000 claims description 10
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 10
- 229920002647 polyamide Polymers 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 229940093429 polyethylene glycol 6000 Drugs 0.000 claims description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 2
- 239000004842 bisphenol F epoxy resin Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract description 22
- 238000000576 coating method Methods 0.000 abstract description 22
- 230000003373 anti-fouling effect Effects 0.000 abstract description 2
- 230000003670 easy-to-clean Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 7
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical group [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 6
- 238000005336 cracking Methods 0.000 description 6
- JOLVYUIAMRUBRK-UHFFFAOYSA-N 11',12',14',15'-Tetradehydro(Z,Z-)-3-(8-Pentadecenyl)phenol Natural products OC1=CC=CC(CCCCCCCC=CCC=CCC=C)=C1 JOLVYUIAMRUBRK-UHFFFAOYSA-N 0.000 description 5
- YLKVIMNNMLKUGJ-UHFFFAOYSA-N 3-Delta8-pentadecenylphenol Natural products CCCCCCC=CCCCCCCCC1=CC=CC(O)=C1 YLKVIMNNMLKUGJ-UHFFFAOYSA-N 0.000 description 5
- JOLVYUIAMRUBRK-UTOQUPLUSA-N Cardanol Chemical compound OC1=CC=CC(CCCCCCC\C=C/C\C=C/CC=C)=C1 JOLVYUIAMRUBRK-UTOQUPLUSA-N 0.000 description 5
- FAYVLNWNMNHXGA-UHFFFAOYSA-N Cardanoldiene Natural products CCCC=CCC=CCCCCCCCC1=CC=CC(O)=C1 FAYVLNWNMNHXGA-UHFFFAOYSA-N 0.000 description 5
- PTFIPECGHSYQNR-UHFFFAOYSA-N cardanol Natural products CCCCCCCCCCCCCCCC1=CC=CC(O)=C1 PTFIPECGHSYQNR-UHFFFAOYSA-N 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000000839 emulsion Substances 0.000 description 4
- 125000000524 functional group Chemical group 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000003242 anti bacterial agent Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012875 nonionic emulsifier Substances 0.000 description 1
- 239000004843 novolac epoxy resin Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/504—Amines containing an atom other than nitrogen belonging to the amine group, carbon and hydrogen
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2150/00—Compositions for coatings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
- Epoxy Resins (AREA)
Abstract
The invention relates to the technical field of C09J163/00, in particular to easy-to-scrub barreled colored sand and a preparation method thereof, wherein the easy-to-scrub barreled colored sand comprises a component A and a curing agent component B; the mass ratio of the component A to the curing agent component B is (5-10): 1, a step of; the component A at least comprises 40-70 parts of epoxy resin, 2-10 parts of diluent, 200-300 parts of color sand and 15-35 parts of modified epoxy emulsifier in parts by weight; the curing agent component B at least comprises 150-200 parts of curing agent and 5-10 parts of thixotropic agent in parts by weight, the system stability is high, and the coating formed after curing is not easy to crack, easy to clean and has excellent waterproof and anti-fouling performances.
Description
Technical Field
The invention relates to the technical field of C09J163/00, in particular to easy-to-scrub barreled colored sand and a preparation method thereof.
Background
The color sand has wide application in the field of building decoration due to the advantages of bright color, stable performance and the like, particularly in the field of joint products, the joint filling can be applied to filling various types of tiles and gaps with different sizes by wiping and pressing, but the epoxy color sand is widely used in wet environment states of toilets, kitchens, swimming pools and the like due to the omnibearing contact of the epoxy color sand and the tiles, so that the epoxy color sand has high requirements on the system stability and durability.
Chinese application No. CN115215959A discloses hybridized water-based acrylic resin, artificial colored sand, a preparation method and application thereof, wherein the hybridized water-based acrylic resin is specifically prepared as a binder, is mixed and stirred with an interface reinforcing agent, color paste and a filler to obtain an artificial colored sand product, and the prepared colored sand has stronger wear resistance, but if the colored sand is applied to a high-humidity environment, a coating formed after curing can be whitened and expanded after being corroded by water vapor for a long time, and the adhesiveness between the coating and a matrix becomes poor, so that the coating falls off, and the aesthetic property is seriously influenced. Chinese patent CN 115448641A discloses a water-based color sand joint beautifying agent, which mainly solves the problem of insufficient antibacterial property and easy cracking of products by introducing an antibacterial agent and an anti-cracking auxiliary agent into a formula, but the introduction of nano silver-series and zinc-series antibacterial agents can influence the overall stability of the formula, thereby influencing the adhesive force of the joint beautifying agent product.
Disclosure of Invention
The invention provides easy-to-scrub barreled colored sand, which comprises a component A and a curing agent component B; the mass ratio of the component A to the curing agent component B is (5-10): 1, a step of; the component A at least comprises 40-70 parts of epoxy resin, 2-10 parts of diluent, 200-300 parts of color sand and 15-35 parts of modified epoxy emulsifier in parts by weight; the curing agent component B at least comprises 150-200 parts of curing agent and 5-10 parts of thixotropic agent according to parts by weight.
As a preferable technical scheme, the epoxy resin is at least one of bisphenol a epoxy resin, bisphenol F epoxy resin and phenolic epoxy resin; preferably, the epoxy resin is bisphenol a epoxy resin or novolac epoxy resin; the mass ratio of the bisphenol A epoxy resin to the phenolic epoxy resin is 1: (0.5-2). The bisphenol A epoxy resin is E51 and/or E44. The epoxy equivalent of the phenolic epoxy resin is 170-210 g-eq -1 The method comprises the steps of carrying out a first treatment on the surface of the Preferably, the epoxy equivalent of the phenolic epoxy resin is 190-210 g-eq -1 The method comprises the steps of carrying out a first treatment on the surface of the The phenolic epoxy resin is YNPN-640A80 and is derived from Lilo groups.
As a preferable technical scheme, the preparation method of the modified epoxy emulsifier at least comprises the following steps: adding the modified epoxy resin, polyethylene glycol and phthalic anhydride into a container, heating to 80-90 ℃, stirring and mixing for 30-50min, adding persulfate under the stirring condition, preserving heat for 10-20min, continuously heating to 170-190 ℃, and preserving heat for 2-3h to obtain the modified epoxy emulsifier.
As a preferable technical scheme, the modified epoxy resin is cardanol epoxy resin, the model is C40, and the modified epoxy resin is sourced from Xuzhou research technology Co.
As a preferable technical scheme, the polyethylene glycol is a combination of polyethylene glycol 2000 and polyethylene glycol 6000; the mass ratio of the polyethylene glycol 2000 to the polyethylene glycol 6000 is (1-2): 1.
as a preferable technical scheme, the molar ratio of the modified epoxy resin, the polyethylene glycol and the phthalic anhydride is 1: (0.5-1): (0.1-0.3).
As a preferable technical scheme, the addition amount of the persulfate is 0.2-0.3wt% based on the total mass of the modified epoxy resin, the polyethylene glycol and the phthalic anhydride.
As a preferable technical scheme, the persulfate is ammonium persulfate.
Based on the system, the cardanol modified epoxy resin is used as a raw material, and reacts with polyethylene glycol and phthalic anhydride to prepare the reactive emulsifier with the epoxy functional group as a terminal group, so that the prepared modified epoxy emulsifier emulsion has uniform particle size and high system stability. Further, the prepared modified epoxy emulsifier is mixed and emulsified with phenolic epoxy resin and bisphenol A epoxy resin, so that the prepared component A has excellent long-term stability, and a cured product formed after the component A reacts with the curing agent component B has excellent toughness and water resistance, so that the appearance and adhesive force of a cured coating are ensured, and the use requirement under a high-humidity environment is met. The inventors analyzed the cause may be: the prepared modified epoxy emulsifier has very good structural similarity with phenolic epoxy resin and bisphenol A epoxy resin, and the hydrophobic part of the emulsifier is compatible with the epoxy resin into a whole, so that on one hand, the emulsification efficiency is increased, on the other hand, the emulsifier can react with a curing agent to generate a net structure, the emulsifier is prevented from being released from a coating due to the action of water, the water scouring resistance of the coating is greatly improved, and the stability of a system is greatly improved. In addition, the modified epoxy emulsifier, the phenolic epoxy resin and the bisphenol A epoxy resin are mixed and emulsified, so that the tendency of crystallization is reduced, a long carbon chain functional group structure is introduced into a cured structure, cracking and falling of a cured coating are effectively prevented, and the service life of a color sand product is greatly prolonged.
As a preferable technical scheme, the curing agent is at least one of phenolic amine, phenolic amide, polyamide and modified alicyclic amine; preferably, the curing agent is phenolic amine, the model of the phenolic amine is T31, and the phenolic amine is derived from tin-free market Hua chemical industry Co.
Based on the system of the invention, phenolic amine is adopted as a curing agent, in particular T31 phenolic amine, has high matching compatibility with the component A, is favorable for improving the stability of the epoxy resin emulsion and the uniformity of the coating after curing, and avoids precipitation of the curing agent in the curing process.
As a preferred technical scheme, the diluent is ethanol or acetone.
As a preferable technical scheme, the colored sand is one or more of natural colored sand, calcined colored sand, quartz sand and glass sand; preferably, the colored sand is calcined colored sand, and the particle size of the calcined colored sand is 80-200 meshes.
As a preferred embodiment, the thixotropic agent is a polyamide wax. Preferably, the polyamide wax is MT 6900-20X, and is from Tai Yuan Mei TeXiang Co.
The invention also provides a preparation method of the easy-to-scrub barreled colored sand, which at least comprises the following steps:
(1) Adding epoxy resin and a diluent into a container, stirring and dispersing for 10-20min, adding a modified epoxy emulsifier under the stirring condition, keeping for 2-3h, and then adding color sand, stirring and mixing for 30-50min to prepare a component A;
(2) Stirring the curing agent and the thixotropic agent for 0.5-1h to prepare a curing agent component B;
(3) When in use, the component A and the curing agent component B are mixed according to the mass ratio.
Advantageous effects
1. The invention provides the barreled colored sand which is easy to scrub, has high system stability, is not easy to crack after being solidified, is easy to clean, and has excellent waterproof and anti-fouling performances.
2. According to the invention, cardanol modified epoxy resin is used as a raw material, and reacts with polyethylene glycol and phthalic anhydride to prepare the reactive emulsifier with an epoxy functional group as a terminal group, so that the prepared modified epoxy emulsifier emulsion has uniform particle size and high system stability.
3. The inventor mixes and emulsifies the prepared modified epoxy emulsifier, phenolic epoxy resin and bisphenol A epoxy resin, so that the prepared component A has excellent long-term stability, and a cured product formed after the component A reacts with the curing agent component B has excellent toughness and water resistance, so that the appearance and adhesive force of a coating after curing are ensured, and the use requirement under a high-humidity environment is met.
4. Based on the system, the modified epoxy emulsifier, the phenolic epoxy resin and the bisphenol A epoxy resin are adopted for mixed emulsification, so that the tendency of crystallization is reduced, a long carbon chain functional group structure is introduced into a cured structure, cracking and falling of a cured coating are effectively prevented, and the service life of a color sand product is greatly prolonged.
5. Based on the system of the invention, phenolic amine is adopted as a curing agent, in particular T31 phenolic amine, has high matching compatibility with the component A, is favorable for improving the stability of the epoxy resin emulsion and the uniformity of the coating after curing, and avoids precipitation of the curing agent in the curing process.
Detailed Description
Example 1
In one aspect, embodiment 1 of the present invention provides an easy-to-scrub barreled colored sand, including a component a and a curing agent component B; the mass ratio of the component A to the curing agent component B is 10:1, a step of; the component A comprises 50 parts of epoxy resin, 10 parts of diluent, 200 parts of color sand and 20 parts of modified epoxy emulsifier; the curing agent component B comprises 200 parts of curing agent and 5 parts of thixotropic agent in parts by weight.
The epoxy resin is bisphenol A epoxy resin and phenolic epoxy resin; the saidThe mass ratio of bisphenol A epoxy resin to phenolic epoxy resin is 1:1. the bisphenol A epoxy resin is E51. The epoxy equivalent of the phenolic epoxy resin is 190-210 g.eq -1 The method comprises the steps of carrying out a first treatment on the surface of the The phenolic epoxy resin is YNPN-640A80 and is derived from Lilo groups.
The preparation method of the modified epoxy emulsifier comprises the following steps: adding the modified epoxy resin, polyethylene glycol and phthalic anhydride into a container, heating to 85 ℃, stirring and mixing for 30min, adding persulfate under the stirring condition, preserving heat for 15min, continuously heating to 180 ℃, and preserving heat for 3h to obtain the modified epoxy emulsifier.
The modified epoxy resin is cardanol epoxy resin, the model is C40, and the modified epoxy resin is derived from Xuzhou middle research science and technology Co.
The polyethylene glycol is a combination of polyethylene glycol 2000 and polyethylene glycol 6000; the mass ratio of the polyethylene glycol 2000 to the polyethylene glycol 6000 is 1:1.
the mole ratio of the modified epoxy resin to the polyethylene glycol to the phthalic anhydride is 1:0.9:0.1.
the addition amount of the persulfate is 0.2wt% based on the total mass of the modified epoxy resin, the polyethylene glycol and the phthalic anhydride.
The persulfate is ammonium persulfate.
The curing agent is phenolic aldehyde amine, the model of the phenolic aldehyde amine is T31, and the phenolic aldehyde amine is derived from tin-free market Hua chemical industry Co.
The diluent is ethanol.
The colored sand is calcined colored sand, and the particle size of the calcined colored sand is 100 meshes.
The thixotropic agent is polyamide wax. The model of the polyamide wax is MT 6900-20X, and is from Taiyuan Meitexiang company.
In another aspect, embodiment 1 of the present invention provides a method for preparing easy-to-scrub barreled colored sand, including the following steps:
(1) Adding epoxy resin and a diluent into a container, stirring and dispersing for 20min, adding a modified epoxy emulsifier under the stirring condition, keeping for 3h, and then adding color sand, stirring and mixing for 30min to obtain a component A;
(2) Stirring the curing agent and the thixotropic agent for 0.5h to prepare a curing agent component B;
(3) When in use, the component A and the curing agent component B are mixed according to the mass ratio.
Example 2
In one aspect, embodiment 2 of the present invention provides an easy-to-scrub barreled colored sand, including a component a and a curing agent component B; the mass ratio of the component A to the curing agent component B is 9:1, a step of; the component A comprises 60 parts of epoxy resin, 15 parts of diluent, 200 parts of color sand and 20 parts of modified epoxy emulsifier; the curing agent component B comprises 200 parts of curing agent and 5 parts of thixotropic agent in parts by weight.
The epoxy resin is bisphenol A epoxy resin and phenolic epoxy resin; the mass ratio of the bisphenol A epoxy resin to the phenolic epoxy resin is 1:2. the bisphenol A epoxy resin is E51. The epoxy equivalent of the phenolic epoxy resin is 190-210 g.eq -1 The method comprises the steps of carrying out a first treatment on the surface of the The phenolic epoxy resin is YNPN-640A80 and is derived from Lilo groups.
The preparation method of the modified epoxy emulsifier comprises the following steps: adding the modified epoxy resin, polyethylene glycol and phthalic anhydride into a container, heating to 85 ℃, stirring and mixing for 30min, adding persulfate under the stirring condition, preserving heat for 15min, continuously heating to 180 ℃, and preserving heat for 3h to obtain the modified epoxy emulsifier.
The modified epoxy resin is cardanol epoxy resin, the model is C40, and the modified epoxy resin is derived from Xuzhou middle research science and technology Co.
The polyethylene glycol is a combination of polyethylene glycol 2000 and polyethylene glycol 6000; the mass ratio of the polyethylene glycol 2000 to the polyethylene glycol 6000 is 1:2.
the mole ratio of the modified epoxy resin to the polyethylene glycol to the phthalic anhydride is 1:0.9:0.1.
the addition amount of the persulfate is 0.2wt% based on the total mass of the modified epoxy resin, the polyethylene glycol and the phthalic anhydride.
The persulfate is ammonium persulfate.
The curing agent is phenolic aldehyde amine, the model of the phenolic aldehyde amine is T31, and the phenolic aldehyde amine is derived from tin-free market Hua chemical industry Co.
The diluent is ethanol.
The colored sand is calcined colored sand, and the particle size of the calcined colored sand is 100 meshes.
The thixotropic agent is polyamide wax. The model of the polyamide wax is MT 6900-20X, and is from Taiyuan Meitexiang company.
In another aspect, embodiment 2 of the present invention provides a method for preparing easy-to-scrub barreled colored sand, including the following steps:
(1) Adding epoxy resin and a diluent into a container, stirring and dispersing for 20min, adding a modified epoxy emulsifier under the stirring condition, keeping for 3h, and then adding color sand, stirring and mixing for 30min to obtain a component A;
(2) Stirring the curing agent and the thixotropic agent for 0.5h to prepare a curing agent component B;
(3) When in use, the component A and the curing agent component B are mixed according to the mass ratio.
Comparative example 1
The comparative example 1 of the present invention provides an easy-to-scrub barreled colored sand and a preparation method thereof, and a specific embodiment thereof is the same as example 1, except that the modified epoxy emulsifier is replaced by a nonionic emulsifier OP-10 in parts by weight.
Comparative example 2
Comparative example 2 of the present invention provides an easy-to-scrub barreled colored sand and a method for preparing the same as example 1, wherein the specific embodiment is different in that the modified epoxy resin is replaced with E44.
Comparative example 3
Comparative example 3 of the present invention provides an easy-to-scrub barreled colored sand and a preparation method thereof, and a specific embodiment thereof is the same as example 1, except that the curing agent is replaced by polyamide, and the model is ZY-3115, which is derived from the middle research technology company in Xuzhou.
Performance test method
The easy-to-scrub barreled colored sand prepared in the examples and the comparative examples is coated on the surface of a ceramic tile of 4cm multiplied by 0.5cm in a scraping way, cured for 24 hours at 25 ℃ and cured for 7 days at 25 ℃ to obtain a coating with the thickness of 5mm, and the related performance is tested.
(1) The anti-cracking performance test was performed with reference to JG/T157-2004 Standard of putty for exterior wall of building, and the results are shown in Table 1.
(2) After the cured coating was aged for 7 days in a constant temperature and humidity tester at 90 ℃ and a relative humidity of 80%, the cracking resistance was tested with reference to JG/T157-2004 putty for building exterior wall, and the results are shown in Table 1.
(3) The cured coating is placed in water at 40 ℃ for soaking for 72 hours, the appearance of the coating is observed, and if the appearance of the coating has no color change and foaming, the water resistance is marked as 'qualified'; if the coating appearance changed color and foamed, the water resistance was rated as "off-specification".
(4) Placing the cured coating at 80 ℃ for 168 hours, observing the appearance of the coating, and if the appearance of the coating has no obvious change, marking the high temperature resistance as qualified; if the appearance of the coating changes color and warps, the high temperature resistance is marked as 'unqualified'.
Table 1.
Claims (10)
1. The easy-to-scrub barreled colored sand is characterized by comprising a component A and a curing agent component B; the mass ratio of the component A to the curing agent component B is (5-10): 1, a step of; the component A at least comprises 40-70 parts of epoxy resin, 2-10 parts of diluent, 200-300 parts of color sand and 15-35 parts of modified epoxy emulsifier in parts by weight; the curing agent component B at least comprises 150-200 parts of curing agent and 5-10 parts of thixotropic agent according to parts by weight.
2. The easy-to-scrub barreled colored sand of claim 1, wherein the epoxy resin is at least one of bisphenol a epoxy resin, bisphenol F epoxy resin, and phenolic epoxy resin.
3. The easy-to-scrub barreled colored sand according to claim 1 or 2, wherein the preparation method of the modified epoxy emulsifier comprises the following steps: adding the modified epoxy resin, polyethylene glycol and phthalic anhydride into a container, heating to 80-90 ℃, stirring and mixing for 30-50min, adding persulfate under the stirring condition, preserving heat for 10-20min, continuously heating to 170-190 ℃, and preserving heat for 2-3h to obtain the modified epoxy emulsifier.
4. The easy-to-scrub barreled colored sand according to claim 3, wherein the polyethylene glycol is a combination of polyethylene glycol 2000 and polyethylene glycol 6000; the mass ratio of the polyethylene glycol 2000 to the polyethylene glycol 6000 is (1-2): 1.
5. the easy-to-scrub barreled colored sand according to claim 4, wherein the molar ratio of the modified epoxy resin to the polyethylene glycol to the phthalic anhydride is 1: (0.5-1): (0.1-0.3).
6. The easy-to-scrub barreled colored sand according to claim 3, wherein the curing agent is at least one of phenolic amine, phenolic amide, polyamide and modified alicyclic amine.
7. The easy-to-scrub barreled colored sand of claim 1, wherein the colored sand is one or more of natural colored sand, calcined colored sand, quartz sand and glass sand.
8. The easy-to-scrub barreled colored sand according to claim 7, wherein the diluent is ethanol or acetone.
9. The easy-to-scrub barreled colored sand of claim 8, wherein the thixotropic agent is a polyamide wax.
10. A method of preparing a scrubbable barreled colored sand according to any one of claims 1 to 9, comprising at least the steps of:
(1) Adding epoxy resin and a diluent into a container, stirring and dispersing for 10-20min, adding a modified epoxy emulsifier under the stirring condition, keeping for 2-3h, and then adding color sand, stirring and mixing for 30-50min to prepare a component A;
(2) Stirring the curing agent and the thixotropic agent for 0.5-1h to prepare a curing agent component B;
(3) When in use, the component A and the curing agent component B are mixed according to the mass ratio.
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