CN116333596A - Modified asphalt waterproof paint and preparation method thereof - Google Patents
Modified asphalt waterproof paint and preparation method thereof Download PDFInfo
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- CN116333596A CN116333596A CN202310268546.4A CN202310268546A CN116333596A CN 116333596 A CN116333596 A CN 116333596A CN 202310268546 A CN202310268546 A CN 202310268546A CN 116333596 A CN116333596 A CN 116333596A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000003973 paint Substances 0.000 title abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 41
- 239000011248 coating agent Substances 0.000 claims abstract description 40
- 239000000839 emulsion Substances 0.000 claims abstract description 25
- 239000000945 filler Substances 0.000 claims abstract description 18
- 239000002562 thickening agent Substances 0.000 claims abstract description 12
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 9
- 239000003899 bactericide agent Substances 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 49
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 239000003945 anionic surfactant Substances 0.000 claims description 16
- 239000013530 defoamer Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 229920006395 saturated elastomer Polymers 0.000 claims description 12
- 125000000129 anionic group Chemical group 0.000 claims description 11
- 239000002736 nonionic surfactant Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 125000003118 aryl group Chemical group 0.000 claims description 7
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 239000000084 colloidal system Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 230000001580 bacterial effect Effects 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- 239000002480 mineral oil Substances 0.000 claims description 2
- 235000010446 mineral oil Nutrition 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000002426 superphosphate Substances 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 17
- 239000008199 coating composition Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 17
- 238000010276 construction Methods 0.000 description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 6
- 239000005060 rubber Substances 0.000 description 6
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 4
- 239000012943 hotmelt Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 238000004440 column chromatography Methods 0.000 description 3
- 230000002070 germicidal effect Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000012492 regenerant Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000004566 IR spectroscopy Methods 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007719 peel strength test Methods 0.000 description 1
- 238000005464 sample preparation method Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000008096 xylene Substances 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
- C09D195/00—Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
- C09D195/005—Aqueous compositions, e.g. emulsions
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides a modified asphalt waterproof paint and a preparation method thereof, and relates to the technical field of waterproof paint, wherein the waterproof paint comprises the following components: emulsified thickened oil, emulsified asphalt, emulsion and filler; wherein the weight ratio of the emulsified thick oil to the emulsified asphalt is 1-10:10-50. The coating composition may also include bactericides, thickeners and defoamers. The waterproof coating has certain fluidity at high temperature, can resist the roasting with open fire for a longer time, and can provide a better bonding interface for the combination of the asphalt coating and the coiled material.
Description
Technical Field
The invention relates to the technical field of waterproof paint, in particular to modified asphalt waterproof paint and a preparation method thereof.
Background
In roofing maintenance construction, constructors often carry out multi-layer multi-material composite construction through the mode that asphalt coating and pitch coiled material are used in a compounding way, and roofing maintenance coiled material is mainly hot melting method modified asphalt waterproof coiled material, and open flame easily produces irreversible destruction to the asphalt coating that the bottom has been dried in open flame construction process, seriously influences waterproof construction effect.
Patent CN110128946A discloses a bi-component rubber modified asphalt waterproof paint, a preparation method and application thereof, wherein the waterproof paint consists of a first component and a second component with the mass percentage of 1 (0.1-1.0); the first component is prepared by mixing the following components in percentage by mass: 25.8 to 56 percent of asphalt, 6 to 15.4 percent of rubber, 6 to 24.5 percent of asphalt regenerant, 0.8 to 4.0 percent of emulsifier, 0.03 to 5.0 percent of stabilizer, 0 to 5.0 percent of other auxiliary agent and the balance of water. The invention mainly adopts asphalt at the provincial level, can enable rubber and asphalt to be fused, avoid segregation phenomenon, and simultaneously can reduce the high-temperature viscosity of asphalt and reduce the emulsification difficulty of asphalt. However, asphalt is specifically used, the continuous phase of the system is oily, the viscosity of the system is extremely high, and the construction is difficult, and meanwhile, the asphalt is not easy to produce oil and bake and paste when being matched with high-temperature baking of coiled materials.
Patent CN110128945A discloses a rubber modified asphalt waterproof paint, a preparation method and application thereof, and the paint is prepared by mixing the following components: asphalt, rubber, asphalt regenerant, emulsifier, stabilizer, water and other auxiliary agents, wherein the asphalt regenerant is prepared by using cycloalkyl heavy oil as a raw material and performing normal pressure reduced pressure distillation. The stabilizer is added in the invention to avoid demulsification and ensure storage stability, but the invention belongs to rubber asphalt waterproof paint which has the defects of difficult construction, difficult oil production, easy paste baking and the like.
Aiming at the problems of difficult construction, difficult oil production, easy baking and the like in the prior art, it is necessary to find a modified asphalt waterproof coating and a preparation method.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a modified asphalt waterproof coating and a preparation method thereof, wherein the coating can be used as a base layer treating agent of a hot-melt asphalt waterproof coiled material, the coating can be coated before the asphalt waterproof coiled material is paved, the asphalt waterproof coiled material can be paved by a construction process of baking with open fire after the coating is dried, and a special formula design can endow a waterproof layer with more excellent composite effect.
The invention provides a waterproof coating, which comprises the following components: emulsified thickened oil, emulsified asphalt, emulsion and filler;
the emulsified thick oil comprises, by weight, 50-70% of saturated components, 5-20% of aromatic components, 0.5-5% of colloid and 10-30% of asphaltene;
the weight ratio of the emulsified thick oil to the emulsified asphalt is (1-10) to (10-50).
Further, the waterproof coating comprises the following components in parts by weight: 1-10 parts of emulsified thick oil, 10-50 parts of emulsified asphalt, 1-20 parts of emulsion and 10-50 parts of filler.
Preferably, the waterproof coating comprises the following components in parts by weight: 10 parts of emulsified thick oil, 25 parts of emulsified asphalt, 20 parts of emulsion and 30 parts of filler.
Further, the emulsion comprises one or more of styrene-acrylic emulsion, pure acrylic emulsion, vinyl acetate-acrylic emulsion and VAE emulsion; styrene-acrylic emulsions are preferred.
Further, the filler comprises one or more of heavy calcium powder, talcum powder, barium sulfate, zinc oxide and quartz powder; preferably ground triple superphosphate.
Further, the preparation method of the emulsified thick oil comprises the following steps: stirring the anionic and nonionic surfactant solution, simultaneously dripping the heated thick oil, and uniformly stirring and dispersing; the weight ratio of the anionic non-ionic surfactant solution to the thick oil is (3-5) (5-7).
In some specific embodiments, the method for preparing the emulsified heavy oil comprises the steps of: firstly, preparing a solution with the concentration of the anionic and nonionic surfactant of 0.5 percent and the concentration of NaOH of 0.3 percent; then placing the surfactant solution in a container, rapidly stirring (2000 r/min) by using a dispersion disc type high-speed stirrer, and continuously and dropwise adding the thick oil heated to 70 ℃ until the addition is completed, and stirring and dispersing uniformly.
Further, the viscosity of the emulsified heavy oil is 1200-1500cP (test result at 70 ℃).
Further, the anionic and nonionic surfactant solution is prepared from 0.5-1% by mass of anionic surfactant and 0.3-0.5% by mass of NaOH.
Further, the anionic surfactant has the formula: c (C) 8 PO m EO n SO 3 Na, wherein C8 is saturated straight-chain alkyl containing 8 carbons, m is 2-8, and n is 2-8.
Further, the emulsified asphalt comprises the following components in percentage by weight: 60-70% of asphalt, 0.5-2% of surfactant, 0-1% of sodium hydroxide and 30-40% of water.
Further, the invention also provides a preparation method of the waterproof paint, which comprises the following steps: mixing water, emulsified thick oil, emulsified asphalt, emulsion and filler, stirring and dispersing uniformly.
Further, the waterproof paint also comprises a bactericide, a thickener and a defoamer.
Further, the germicides comprise a bacterial germicide and/or a mold germicide; the thickener comprises a polyurethane thickener and/or an acrylic thickener; the defoamer comprises one or more of mineral oil defoamer, organic silicon defoamer and surfactant defoamer.
Further, the invention also provides a preparation method of the waterproof paint, which comprises the following steps: mixing water, emulsified thickened oil, emulsified asphalt, emulsion, filler, bactericide, thickener and defoamer, stirring and dispersing uniformly to obtain the final product.
In some embodiments, the coating preparation is performed by a dispersion disc type high-speed dispersion machine: the rotation speed of the dispersing agent is 1200r/min, tap water, emulsion, emulsified asphalt, emulsified thick oil, filler, bactericide, defoamer and thickener are sequentially added into a container, and the mixture is stirred and dispersed uniformly.
Noteworthy are: the thickened oil component can be obtained by testing by a column chromatography separation method, and the specific method is as follows: the method comprises the steps of adopting a column chromatography separation method, gradually leaching, steaming and weighing by petroleum ether, dimethylbenzene and acetone to obtain the contents of saturated components, aromatic components, colloid and asphaltene in the petroleum ether, the dimethylbenzene and the acetone respectively, drying the rest substances to obtain asphaltene, and further confirming that the type of the thick oil is emulsified thick oil.
The method for reversely pushing the content and the type of the thickened oil from the dry film of the coating comprises the following steps: heating and extracting with solvent (petroleum ether and xylene) to separate oil from the coating, wherein the separated oil is saturated fraction, aromatic fraction and small amount of colloid, and the saturated fraction and aromatic fraction can be separated and quantified by column chromatography, so that the emulsified thick oil is of the type of reverse-push thick oil according to proportion.
The method for measuring the filler in the paint comprises the following steps: and (3) firing the dry film of the product for 4 hours by a 600-degree muffle furnace, wherein the organic matters can be decomposed, the rest powder is the filler, the weight can be obtained by weighing, and the filler can be measured by an X-ray diffraction method to obtain the filler type.
Determination method of emulsion type and emulsified asphalt type in paint: all can be measured by infrared spectroscopy or other conventional methods.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the invention has the technical effects that:
the material of the invention can introduce a small amount of long-chain saturated components and aromatic components with macromolecular structures into an asphalt coating system by adding emulsified thickened oil components, and the substances can not bring foot sticking risks (viscous feeling even incapability of walking on a coating film when workers walk on the coating film) in construction for the thickening of the coating film of the asphalt coating at normal temperature, but have certain fluidity at high temperature, can resist roasting with open fire for a longer time, and can provide a better bonding interface for the compounding of the asphalt coating and coiled materials.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
Before the embodiments of the invention are explained in further detail, it is to be understood that the invention is not limited in its scope to the particular embodiments described below; it is also to be understood that the terminology used in the examples of the invention is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the invention.
Where numerical ranges are provided in the examples, it is understood that unless otherwise stated herein, both endpoints of each numerical range and any number between the two endpoints are significant both in the numerical range. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is worth to say that the thick oil used in the invention is the thick oil of No. Chen Guzhuang Chen 13-19 of the victory oil field, the emulsified asphalt of the invention is purchased from Shandong Dao Highway technology Co., ltd, the model is DS-2, and the rest raw materials are common commercial products, so the sources are not particularly limited.
Examples 1 to 6, comparative examples 1 to 8:
the formulation of the waterproof coating materials in examples 1 to 6 and comparative examples 1 to 8 is shown in tables 1 to 2.
TABLE 1
TABLE 2
In each of the above examples and comparative examples, the preparation method of the emulsified thick oil comprises the following steps: firstly, preparing an anionic and nonionic surfactant solution; then placing the surfactant solution in a container, rapidly stirring (2000 r/min) by using a dispersion disc type high-speed stirrer, and continuously and dropwise adding the thick oil heated to 70 ℃ until the addition is completed, and stirring and dispersing uniformly;
specifically, the anionic surfactant solutions used in example 1, example 4, comparative examples 2 to 3, and comparative examples 6 to 7 were formulated with 0.5% by mass of an anionic surfactant having the formula C and 0.3% by mass of NaOH 8 PO m EO n SO 3 Na, wherein C8 is saturated straight-chain alkyl containing 8 carbons, m is 4, n is 4; the weight ratio of the anionic non-ionic surfactant solution to the thick oil is 4:6;
the anionic surfactant solutions used in examples 2 and 5 were prepared from 1% by mass of anionic surfactant having the formula C and 0.5% by mass of NaOH 8 PO m EO n SO 3 Na, wherein C8 is saturated straight-chain alkyl containing 8 carbons, m is 2, n is 2; the weight ratio of the anionic non-ionic surfactant solution to the thick oil is 3:5;
the anionic surfactant solutions used in examples 3 and 6 were formulated with 0.6% by mass of anionic surfactant of formula C and 0.4% by mass of NaOH 8 PO m EO n SO 3 Na, wherein C8 is saturated straight-chain alkyl containing 8 carbons, m is 8, n is 8; the weight ratio of the anionic non-ionic surfactant solution to the thick oil is 5:7;
the preparation of the waterproof paint in each of the above examples and comparative examples is carried out by a dispersion disk type high-speed dispersion machine: the rotation speed of the dispersing agent is 1200r/min, tap water, emulsion, emulsified asphalt, emulsified thickened oil, filler, bactericide, defoamer and thickener are sequentially added into a container, and the materials are stirred and dispersed uniformly (wherein the preparation methods of the waterproof coating in the comparative example 3 and the comparative example 6 are used for replacing the raw materials according to the actual formula).
It is worth to say that in each example and comparative example, the saturated content of the emulsified thick oil is 50-70%, the aromatic content is 5-20%, the colloid content is 0.5-5% and the asphaltene content is 10-30% by weight; the emulsified asphalt comprises the following components in percentage by weight: 60-70% of asphalt, 0.5-2% of surfactant, 0-1% of sodium hydroxide and 30-40% of water.
1. Oil permeability test
The testing method comprises the following steps: firstly, a waterproof coating film with the wet film thickness of 2mm is prepared by using a film coater, curing is carried out for 72 hours under standard curing conditions (20-25 ℃ and humidity of 50%), and then the oil permeability of the coating film is tested according to the oil permeability test method in GB18242-2008 standard.
TABLE 3 Table 3
The above results demonstrate that the addition of the emulsified heavy oil component allows the modified asphalt waterproof paint to release a small amount of oil at high temperature, while bleeding of oil will increase the bake-resistance of the coating.
2. Peel strength test
The testing method comprises the following steps: and (3) baking the coating and the hot-melt asphalt waterproof coiled material, combining the coating and the hot-melt asphalt waterproof coiled material together according to a sample preparation method of the joint peeling strength of GB18242-2008 standard, and inspecting the peeling strength of the hot-melt asphalt coiled material and the asphalt waterproof coating dry film after cooling.
TABLE 4 Table 4
| Examples | Peel strength (N/mm) |
| Example 1 | 1.5 |
| Example 2 | 1.9 |
| Example 3 | 1.7 |
| Example 4 | 1.6 |
| Example 5 | 2.0 |
| Example 6 | 1.8 |
| Comparative example 1 | 1.9 |
| Comparative example 2 | 1.0 |
| Comparative example 3 | 1.3 |
| Comparative example 4 | 1.9 |
| Comparative example 5 | 2.1 |
| Comparative example 6 | 1.2 |
| Comparative example 7 | 1.4 |
| Comparative example 8 | 2.1 |
The above results show that the addition of certain emulsified thickened oil components can remarkably increase the combination effect of coiled materials and asphalt coatings, and is beneficial to the reliability of waterproof construction.
Finally, it should be noted that the above description is only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and that the simple modification and equivalent substitution of the technical solution of the present invention can be made by those skilled in the art without departing from the spirit and scope of the technical solution of the present invention.
Claims (11)
1. A waterproof coating, characterized in that: the components comprise: emulsified thickened oil, emulsified asphalt, emulsion and filler;
the emulsified thick oil comprises, by weight, 50-70% of saturated components, 5-20% of aromatic components, 0.5-5% of colloid and 10-30% of asphaltene;
the weight ratio of the emulsified thick oil to the emulsified asphalt is (1-10) to (10-50).
2. The waterproof coating according to claim 1, wherein: the components in parts by weight are as follows: 1-10 parts of emulsified thick oil, 10-50 parts of emulsified asphalt, 1-20 parts of emulsion and 10-50 parts of filler.
3. The waterproof coating according to claim 2, characterized in that: the components in parts by weight are as follows: 10 parts of emulsified thick oil, 25 parts of emulsified asphalt, 20 parts of emulsion and 30 parts of filler.
4. The waterproof coating according to claim 1, wherein: the emulsion comprises one or more of styrene-acrylic emulsion, pure acrylic emulsion, vinyl acetate-acrylic emulsion and VAE emulsion; styrene-acrylic emulsions are preferred.
5. The waterproof coating according to claim 1, wherein: the filler comprises one or more of heavy calcium powder, talcum powder, barium sulfate, zinc oxide and quartz powder; preferably ground triple superphosphate.
6. The waterproof coating according to claim 1, wherein: the preparation method of the emulsified thick oil comprises the following steps: stirring the anionic and nonionic surfactant solution, simultaneously dripping the heated thick oil, and uniformly stirring and dispersing; the weight ratio of the anionic non-ionic surfactant solution to the thick oil is (3-5) (5-7).
7. The waterproof coating according to claim 6, wherein: the anionic and nonionic surfactant solution is prepared from 0.5-1% of anionic surfactant and 0.3-0.5% of NaOH by mass.
8. The waterproof coating according to claim 7, wherein: the molecular formula of the anionic surfactant is as follows: c (C) 8 PO m EO n SO 3 Na, wherein C8 is saturated straight-chain alkyl containing 8 carbons, m is 2-8, and n is 2-8.
9. The waterproof coating according to claim 1, wherein: the components also comprise bactericides, thickeners and defoamers.
10. The waterproof coating according to claim 9, wherein: the bactericide comprises a bacterial bactericide and/or a mould bactericide; the thickener comprises a polyurethane thickener and/or an acrylic thickener; the defoamer comprises one or more of mineral oil defoamer, organic silicon defoamer and surfactant defoamer.
11. A method of preparing a water-resistant coating according to any one of claims 1 to 10, wherein: the method comprises the following steps:
mixing water, emulsified thick oil, emulsified asphalt, emulsion and filler, stirring and dispersing uniformly.
Priority Applications (1)
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| CN116333596B (en) | 2024-03-22 |
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