CN107936839B - High-elasticity rubber asphalt waterproof coating and preparation method thereof - Google Patents
High-elasticity rubber asphalt waterproof coating and preparation method thereof Download PDFInfo
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- CN107936839B CN107936839B CN201711339887.7A CN201711339887A CN107936839B CN 107936839 B CN107936839 B CN 107936839B CN 201711339887 A CN201711339887 A CN 201711339887A CN 107936839 B CN107936839 B CN 107936839B
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- 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
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- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention provides a high-elasticity rubber asphalt waterproof coating, which comprises the following components or consists of the following components: a natural asphalt dispersion, a defoaming agent, a first resin emulsion selected from the group consisting of a vinyl acetate-ethylene copolymer emulsion, a neoprene latex, and an acrylic acid resin emulsion, a second resin emulsion, a thickener, and a preservative; the second resin emulsion is selected from the group consisting of styrene-butadiene-styrene block copolymer emulsion and styrene-butadiene emulsion. The invention also provides a method for preparing the waterproof coating, which comprises the following steps: preparing a natural asphalt dispersion liquid, and sequentially adding a defoaming agent, a first resin emulsion, a second resin emulsion, a thickening agent and a preservative while stirring to obtain the waterproof coating. The waterproof coating has the performances of high elasticity, excellent adhesion, weather resistance and the like, and can be used as a waterproof anticorrosive coating for buildings and the like.
Description
Technical Field
The invention relates to the field of waterproof coatings, in particular to a high-elasticity rubber asphalt waterproof coating and a preparation method thereof.
Background
The asphalt is a black-brown complex mixture composed of hydrocarbons with different molecular weights and nonmetal derivatives thereof, and can be mainly divided into coal tar asphalt, petroleum asphalt and natural asphalt. Among them, coal tar pitch is a by-product of coking. Petroleum pitch is the residue of crude oil distillation. Natural bitumen is stored underground, and some forms a mineral layer or is accumulated on the surface of the crust.
The coal tar pitch mainly contains anthracene, phenanthrene, pyrene and the like which are difficult to volatilize. These substances are toxic. The change of temperature has great influence on the coal tar pitch, and the coal tar pitch is easy to crack in winter and soften in summer. Has special smell when heated; after heating to 260 ℃ for 5 hours, the contained components such as anthracene, phenanthrene and pyrene will volatilize. Petroleum asphalt contains few volatile components, but there may be high molecular hydrocarbons that have not previously been volatilized but may be volatilized during use, which are more or less harmful to human health. The natural asphalt and the petroleum asphalt belong to petroleum-based materials, have similar chemical structures and are widely distributed in the world, but most of the natural asphalt is subjected to natural evaporation and oxidation and generally does not contain any toxin. In addition, these non-natural asphalts have the disadvantages of hot-flow, cold-brittleness, poor weather resistance, etc., which seriously impair the performance of the waterproof material.
The natural asphalt is not used directly as asphalt, but used as modifier of base asphalt to form modified asphalt to exert the best performance. A large number of researches and engineering practices show that the asphalt pavement paved by the natural modified asphalt has the advantages of long service life, high stability, high water loss resistance, strong microbial corrosion resistance and high fatigue resistance, and the performance of the asphalt pavement is obviously improved.
However, although natural asphalt has good weather resistance and low price, it is not common to use natural asphalt in building waterproof coatings directly independent of other asphalts, because natural asphalt mainly has the aspects of traffic road construction, but may contain many minerals, has large molecular weight, high viscosity, difficult dispersion, poor heat resistance and weather resistance, low stability, poor compatibility, high segregation and the like.
CN201611010822.3 provides an asphalt-compounded diatomite-corrosion-resistant-enhanced acrylic waterproof elastic exterior wall coating which is prepared from the following raw materials in parts by weight: 20-22 parts of methyl methacrylate, 29-31 parts of butyl acrylate, 8.5-9.5 parts of hexafluorobutyl acrylate, 4-5 parts of vinyl triethoxysilane, 0.1-0.12 part of ammonium persulfate, 4-3 parts of OP-102, a proper amount of deionized water, a proper amount of ammonia water, 1.5-2 parts of dodecyl alcohol ester, 4-5 parts of diatomite, 6-8 parts of talcum powder, 2-3 parts of matrix asphalt, 4-5 parts of Buton rock asphalt, 1.3 parts of Tween 801 and 0.4-0.5 part of polyoxyethylene lauryl ether. However, this asphalt containing a base asphalt easily releases volatile substances, and contains only a small amount of natural asphalt, and thus natural asphalt cannot be sufficiently utilized.
CN201610707796.3 provides an environment-friendly flame-retardant non-cured rubber asphalt waterproof coating, which comprises the following components in parts by weight: 60-100 parts of natural asphalt, 20-80 parts of rubber powder, 20-80 parts of rosin resin, 20-80 parts of acrylic polymer, 10-40 parts of thermoplastic styrene-butadiene rubber, 40-100 parts of solvent, 10-40 parts of attapulgite, 10-40 parts of cellulose, 5-20 parts of adhesion promoter, 5-20 parts of binder, 5-20 parts of light stabilizer and 20-60 parts of composite flame retardant. However, the system uses an organic solvent, is costly and not environmentally friendly, and requires additional fillers to improve thermal stability and atmospheric stability, additional photostability to improve weather resistance, and additional adhesion promoters and binders to improve adhesion.
Disclosure of Invention
In view of the above problems in the prior art, the present invention provides, in a first aspect, a high-elasticity rubber asphalt waterproof coating material, which comprises or consists of: a natural asphalt dispersion, a defoaming agent, a first resin emulsion selected from the group consisting of a vinyl acetate-ethylene copolymer emulsion, a neoprene latex, and an acrylic acid resin emulsion, a second resin emulsion, a thickener, and a preservative; the second resin emulsion is selected from the group consisting of styrene-butadiene-styrene block copolymer emulsion and styrene-butadiene emulsion.
The present invention provides, in a second aspect, a process for preparing the waterproof coating material according to the first aspect of the present invention, comprising the steps of:
(1) preparing a natural asphalt dispersion liquid: respectively putting natural asphalt, water and a dispersing agent into a first ball mill for dispersion grinding until the fineness of the material reaches 200 meshes, so as to obtain a natural asphalt mixture; then introducing the natural asphalt mixture into a second ball mill for fine processing until the fineness of the material reaches 800 meshes to obtain a natural asphalt dispersion liquid;
(2) adding a defoaming agent under the condition of stirring the natural asphalt dispersion liquid at the speed of 300 revolutions per minute and continuously stirring for 10 minutes at the same speed to obtain a defoaming material;
(3) adding the first resin emulsion and the second resin emulsion into the defoaming material, stirring at the speed of 300 revolutions per minute for 20 minutes, then adding the thickening agent, and continuing to stir at the same speed for 5 minutes to obtain a thickened material;
(4) adding a preservative into the thickening material and stirring at the speed of 300 revolutions per minute for 30 minutes to obtain the waterproof coating.
The invention has the following technical effects:
(1) environmental protection and less polluting emissions. The invention adopts water as solvent, and uses natural asphalt, particularly rock asphalt, but not other non-natural asphalt such as petroleum asphalt, so that the invention basically does not contain toxic substances and has little volatile organic substances such as formaldehyde, toluene and the like.
(2) Has outstanding hydrophilicity. The coating of the invention adopts water as a solvent, and the obtained coating is water emulsion type asphalt waterproof coating, has better hydrophilicity, and is easy to be matched with other raw materials for preparing building materials.
(3) And the waterproof performance is good. The waterproof coating obtained by the invention has excellent waterproof performance and good seepage resistance under the conditions of 0.10MPa and 30 min.
(4) Has good corrosion resistance. The natural asphalt has better corrosion resistance, and has excellent corrosion resistance by adding a proper amount of preservative.
(5) Has excellent elasticity, acid and alkali resistance and weather resistance. The waterproof coating material of the present invention has good tensile strength and elongation at break, and does not undergo any segregation after being placed at 50 ℃ for 2 months, regardless of alkali treatment, heat treatment or xenon lamp irradiation treatment.
(6) The drying speed is high. The natural asphalt is modified by adopting a proper amount of combination of SBS emulsion and acrylic resin emulsion, and water is used as a solvent, so that the surface drying time and the actual drying time are obviously shorter.
(7) Has good heat resistance, and does not flow, slide or drip under the conditions of 130 ℃ and 5 h.
(8) Has excellent bonding strength. Because the high-weight and high-viscosity natural asphalt is adopted, and a proper amount of compatible combination of SBS emulsion and acrylic emulsion and proper amount of dispersant, defoamer, thickener and preservative are added, the adhesive strength of 1.04MPa can be realized.
Detailed Description
As described above, the present invention provides in a first aspect a high-resilience rubberized asphalt waterproofing paint comprising or consisting of: a natural asphalt dispersion, a defoaming agent, a first resin emulsion selected from the group consisting of a vinyl acetate-ethylene copolymer emulsion, a neoprene latex, and an acrylic acid resin emulsion, a second resin emulsion, a thickener, and a preservative; the second resin emulsion is selected from the group consisting of styrene-butadiene-styrene block copolymer emulsion and styrene-butadiene emulsion.
In some preferred embodiments, the natural asphalt is natural mineral asphalt or natural rock asphalt; the defoaming agent is a mineral oil metal soap type defoaming agent; the thickening agent is an alkali swelling thickening agent; the preservative is a kasong preservative.
In some particularly preferred embodiments, the natural asphalt is natural rock asphalt; the first resin emulsion is acrylic acid resin emulsion; and the second resin emulsion is a styrene-butadiene-styrene block copolymer emulsion. The present inventors have found that in the raw material system of the present invention, the combined use of appropriate amounts of the SBS emulsion and acrylic polymer emulsion and natural asphalt such as buton's rock asphalt, with only a small amount of additives such as an appropriate antifoaming agent, preservative and the like, without additionally adding a filler, a binder or an adhesion promoter and using water as a solvent, can obtain excellent properties such as elasticity, adhesion, weather resistance and the like.
In some preferred embodiments, the natural asphalt concentration of the natural asphalt dispersion is 70 to 80 mass%, for example 75 mass%.
In some preferred embodiments, the natural asphalt dispersion consists of natural asphalt, water, and a dispersant; more preferably, the natural asphalt dispersion liquid is composed of 1500 parts by weight of natural asphalt, 500 parts by weight of water and 20 parts by weight of a dispersant. If too little water is added, the natural asphalt may not be sufficiently dispersed or may be difficult to disperse.
In some preferred embodiments, the raw material components are used in the following amounts: 500 to 600 parts of natural asphalt dispersion liquid, 0.5 to 1.5 parts of defoaming agent, 350 to 450 parts of acrylic resin emulsion, 40 to 60 parts of styrene-butadiene-styrene block copolymer emulsion, 3 to 5 parts of thickening agent and 0.5 to 1.5 parts of preservative.
In some preferred embodiments, the weight of the acrylic resin emulsion is greater than or equal to the weight of the natural asphalt, and the weight ratio of the acrylic resin emulsion to the styrene-butadiene-styrene block copolymer emulsion is 8: 1.
In some preferred embodiments, the raw material components are used in the following amounts: 550 parts of natural asphalt dispersion liquid, 1 part of defoaming agent, 400 parts of acrylic resin emulsion, 50 parts of styrene-butadiene-styrene block copolymer emulsion, 4 parts of thickening agent and 1 part of preservative.
In some preferred embodiments, the dispersant is a polycarboxylate sodium salt dispersant, such as that available from Weichazu chemical Co., Ltd. The dispersant has the advantages of good heat resistance, intersolubility, stable viscosity, good gloss retention, less foam, no toxicity, corrosion resistance, no special odor and the like. The pigment is often used as a dispersant for various pigments in papermaking coatings, is easily soluble in water, and can promote dispersion and fluidity.
In some preferred embodiments, the thickener is an alkali swellable thickener, such as that available from curmade chemical, guangzhou. This type of alkali-swellable thickener, when diluted with water and neutralized with alkali, will swell very quickly in the emulsion particles, under which conditions the emulsion will become clear and very viscous, giving the coating system a high pseudoplasticity, giving the coating a high yield value and gel structure, suitable for formulating coatings with a moderate three-dimensional effect. This type of thickener also reduces roller application spatter, and has a high resistance to attack by microorganisms and enzymes, enables the viscosity of the paint to be stable for a long period of time, and controls sagging of the paint, as compared to high molecular weight cellulosic thickeners. Has excellent texture retention, excellent sag resistance, improved splash resistance and good antimicrobial properties.
In some preferred embodiments, the defoamer is preferably a mineral oil metal soap defoamer, such as a mineral oil metal soap defoamer available from southeast chemical industries, ltd. The defoaming agent is widely used in latex, emulsion and water paint, is especially suitable for medium viscosity and can prevent paint from oil shrinkage.
In some preferred embodiments, the preservative is preferably a kason-based preservative, such as 2-methyl-4-isothiazolin-3-one and/or 5-chloro-2-methyl-4-isothiazolin-3-one, which can provide excellent weatherability to the resulting coating.
The present invention provides, in a second aspect, a method for producing the waterproof coating material according to the first aspect of the present invention, comprising the steps of:
(1) preparing a natural asphalt dispersion liquid: respectively putting natural asphalt, water and a dispersing agent into a first ball mill for dispersion grinding until the fineness of the material reaches 200 meshes, so as to obtain a natural asphalt mixture; then introducing the natural asphalt mixture into a second ball mill for fine processing until the fineness of the material is not less than 800 meshes, and obtaining a natural asphalt dispersion liquid;
(2) adding a defoaming agent while stirring the natural asphalt dispersion at a speed of 300 revolutions per minute (e.g., introducing into a mortar machine for stirring) and continuing stirring at the same speed for 10 minutes to obtain a defoaming material;
(3) adding the first resin emulsion and the second resin emulsion into the defoaming material, stirring at the speed of 300 revolutions per minute for 20 minutes, then adding the thickening agent, and continuing to stir at the same speed for 5 minutes to obtain a thickened material;
(4) adding a preservative into the thickening material and stirring at the speed of 300 revolutions per minute for 30 minutes to obtain the waterproof coating.
In some more preferred embodiments, adding the first resin emulsion and the second resin emulsion to the antifoam material and stirring at 300 rpm for 20 minutes is performed by adding the first resin emulsion to the antifoam material and stirring at 300 rpm for 5 minutes followed by adding the second resin emulsion and continuing stirring at 300 rpm for 15 minutes. Compared with the way of adding the first resin emulsion and the second resin emulsion in the reverse order or simultaneously, the adding way (adding the first resin emulsion and stirring and then adding the second resin emulsion) can realize better emulsification effect and can avoid the occurrence of agglomeration.
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Examples of the invention
The main raw materials and their sources in the examples are shown in table 1 below. All starting materials are known substances and are commercially available.
The main raw materials used in the examples of table 1 and their sources.
| Raw materials | Origin of origin |
| Buton Rock Asphalt (BRA) | Cangzhou Lingang Longda chemical Co., Ltd |
| SBS emulsion | Hunan Yueyang petrochemical general plant |
| Acrylic polymer emulsion | Weifang Ke Mi chemical Limited |
| Sodium polycarboxylate dispersants | Weifang Rui chemical Limited |
| Alkali swelling thickener | Guangzhou Kangtu chemical Co Ltd |
| Mineral oil metal soap defoaming agent | Nantong Guanghua chemical industry Co Ltd |
| Carpine preservative | Guangzhou Feiyi chemical Co Ltd |
Preparation P1
1500kg of natural mineral asphalt, 480kg of water and 20 kg of dispersing agent are respectively put into a ball milling rotary drum of a first ball mill for dispersing and grinding for 5 hours until the fineness of the materials reaches 200 meshes, then the mixed raw materials are led into a ball milling rotary drum of a second ball mill for fine processing by a pump until the fineness of the materials is ground to 800 meshes, the grinding time is 3 hours, and then the ground materials (natural asphalt dispersion liquid with the concentration of 75 mass percent of natural asphalt) are led into a storage tank by the pump for preparation.
Preparation P2
1500kg of natural mineral asphalt, 623kg of water and 20 kg of dispersing agent are respectively put into a ball milling rotary drum of a first ball mill for dispersing and grinding for 5 hours until the fineness of the materials reaches 200 meshes, then the mixed raw materials are led into a ball milling rotary drum of a second ball mill for fine processing by a pump until the fineness of the materials is ground to 800 meshes, the grinding time is 3 hours, and then the ground materials (natural asphalt dispersion liquid with the concentration of about 70 mass percent of natural asphalt) are led into a storage tank by the pump for preparation.
Preparation P3
1500kg of natural mineral asphalt, 355kg of water and 20 kg of dispersing agent are respectively put into a ball milling rotary drum of a first ball mill for dispersing and grinding for 5 hours until the fineness of the materials reaches 200 meshes, then the mixed raw materials are led into a ball milling rotary drum of a second ball mill for fine processing by a pump until the fineness of the materials is ground to 800 meshes, the grinding time is 3 hours, and then the ground materials (natural asphalt dispersion liquid with the natural asphalt concentration of 80 mass%) are led into a storage tank by the pump for preparation.
Preparation P4
1500kg of natural mineral asphalt, 980kg of water and 20 kg of dispersing agent are respectively put into a ball milling rotary drum of a first ball mill for dispersing and grinding for 5 hours until the fineness of the materials reaches 200 meshes, then the mixed raw materials are led into a ball milling rotary drum of a second ball mill for fine processing by a pump until the fineness of the materials is ground to 800 meshes, the grinding time is 3 hours, and then the ground materials (natural asphalt dispersion liquid with the concentration of 60 mass percent of natural asphalt) are led into a storage tank by the pump for preparation.
Preparation P5
1500kg of natural mineral asphalt, 245kg of water and 20 kg of dispersing agent are respectively put into a ball milling rotary drum of a first ball mill for dispersing and grinding for 5 hours until the fineness of the materials reaches 200 meshes, then the mixed raw materials are led into a ball milling rotary drum of a second ball mill for fine processing by a pump until the fineness of the materials is ground to 800 meshes, the grinding time is 3 hours, and then the ground materials (natural asphalt dispersion liquid with the natural asphalt concentration of about 85 mass%) are led into a storage tank by the pump for preparation.
Preparation P6
This was carried out in substantially the same manner as in preparation example P1, except that the water was replaced with soybean oil of the same quality.
Example T1
550kg of the natural asphalt dispersion prepared in preparation example P1 was introduced into a dispersion tank of a sand mill by a sand mill, the rotational speed was adjusted to 300 revolutions/minute, 1 kg of an antifoaming agent was added while stirring, and the mixture was stirred for 10 minutes; adding acrylic resin emulsion (400kg) while stirring at the same speed, and stirring for 5 minutes to ensure that the materials are uniform; then adding SBS emulsion (styrene-butadiene-styrene block copolymer emulsion, 50kg), continuing to disperse and stir for 15 minutes at the same speed; then 4 kg of thickening agent is added, and the dispersion and the stirring are continued for 5 minutes at the same speed; then, 1 kg of the preservative was added thereto, and the mixture was dispersed and stirred at the same speed for 30 minutes, and then allowed to stand for 5 minutes and barreled to obtain a waterproof paint.
The applicants examined the water-repellent paint prepared in example T1 according to JC1066-2008 standard and found that free formaldehyde was 5.6mg/kg, Volatile Organic Compounds (VOC) was 10.2g/L and ammonia emission was 125.4mg/kg, although no benzene, toluene, ethylbenzene and xylene could be detected.
The applicant subsequently commissions a third party to a quality supervision inspection station for the building machinery material equipment products in Hebei province of the third party for inspection in 08 and 15 days in 2017, and sends out an inspection report (controlled number: JL-029-02-03, report number: Z170815003, sample name: high-elasticity rubber asphalt waterproof coating, sample amount of 5kg, inspection basis of JC1066-2008) in 9 and 10 days in 2017, and the inspection results show that the sample state is uniform and free of impurities, the inspected items meet the standard requirements, and the specific results are shown in the following table:
table 2 third party test results for the water-repellent paint prepared in example T1.
| Serial number | Inspection item | Standard requirements | Actual measurement result | Detection limit | Determination |
| 1 | Free Formaldehyde, mg/kg | ≤100 | 6 | —— | Qualified |
| 2 | VOC，g/L | ≤80 | 9 | 2 | Qualified |
| 3 | Total of benzene, toluene, ethylbenzene and xylene in mg/kg | ≤300 | Not detected out | 50 | Qualified |
| 4 | Amount of released ammonia, mg/kg | ≤500 | 128 | —— | Qualified |
The results in the table above are substantially consistent with the results of the applicant's earlier tests.
Example T2
The procedure was carried out in substantially the same manner as in example T1, except that an equal mass of vinyl acetate-ethylene copolymer emulsion was used in place of the acrylic polymer emulsion.
Example T3
The procedure is essentially the same as in example T1, except that an equal mass of neoprene latex is used in place of the acrylic polymer emulsion.
Example T4
The procedure is essentially the same as in example T1, except that an equal mass of styrene-butadiene emulsion is used in place of the SBS emulsion.
Examples T5 and T9
The procedure is carried out in substantially the same manner as in example T1, except that the amounts of the components are varied (as indicated in Table 3).
Examples T10 to T13
The procedure was carried out in substantially the same manner as in example T1, except that the dispersion of natural asphalt prepared in the different preparation examples was used.
This was carried out in substantially the same manner as in example T1, except as indicated in the following table.
Table 3 raw material components and amounts thereof used in the respective examples.
AR emulsion means acrylic resin emulsion; SBS emulsion means styrene-butadiene-styrene block copolymer emulsion; in examples T2 and T3, an equal mass of vinyl acetate-ethylene copolymer emulsion and an equal mass of polychloroprene latex were used in place of the acrylic polymer emulsion, and in Table 3, the amount of AR emulsion used in examples T2 and T3 was 0 kg; example T4 used an equal mass of styrene-butadiene emulsion instead of SBS emulsion, and in table 3, the SBS emulsion used in example T4 was 0 kg.
Comparative example C1
The procedure was carried out in substantially the same manner as in example T1, except that the acrylic resin emulsion and the SBS emulsion in preparation example P1 were replaced with an SBS emulsion corresponding to the total mass of the acrylic resin emulsion and the SBS emulsion in preparation example P1, instead of the acrylic resin emulsion and the SBS emulsion in addition to the acrylic resin emulsion.
Comparative example C2
The procedure was carried out in substantially the same manner as in example T1, except that the SBS emulsion was not added, but the acrylic resin emulsion and the SBS emulsion in preparation example P1 were replaced with an acrylic resin emulsion corresponding to the total mass of the acrylic resin emulsion and the SBS emulsion in preparation example P1.
Comparative example C3
This is carried out in substantially the same manner as in example T1, except that the same quality of petroleum asphalt is used instead of natural asphalt.
Comparative example C4
The procedure was carried out in substantially the same manner as in example T1, except that soybean oil was used in place of water, and that 90kg of a 1:1 mass ratio mixture of benzophenone and methyl salicylate as the light stabilizer and 90kg of cellulose as the filler were added as the light stabilizer.
The various properties of the waterproof coatings prepared in the examples and comparative examples were tested according to JC/T864-2008, the requirements of JC/T864-2008 are shown in Table 4, and the results are shown in Table 5 below.
Table 4 JC/T864-2008 (Polymer emulsion building waterproof coating, national building material industry standard) requirements are as follows:
table 6 other properties of the waterproof coating materials prepared in the respective examples and comparative examples.
Note: the heat resistance and the bonding strength are detected according to JC/T408-; the amount of free formaldehyde, VOC and released ammonia was measured according to JC 1066-2008.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The high-elasticity rubber asphalt waterproof coating is characterized by comprising the following components or consisting of the following components: the natural asphalt emulsion comprises a natural asphalt dispersion liquid, a defoaming agent, a first resin emulsion, a second resin emulsion, a thickening agent and a preservative, wherein the first resin emulsion is an acrylic resin emulsion; the second resin emulsion is styrene-butadiene-styrene block copolymer emulsion; the natural asphalt dispersion liquid is composed of natural asphalt, water and a dispersant, the natural asphalt is natural rock asphalt, and the natural asphalt concentration of the natural asphalt dispersion liquid is 70-80 mass%;
the dosage of each raw material component is as follows:
500 to 600 parts of natural asphalt dispersion liquid, 0.5 to 1.5 parts of defoaming agent, 350 to 450 parts of acrylic resin emulsion, 40 to 60 parts of styrene-butadiene-styrene block copolymer emulsion, 3 to 5 parts of thickening agent and 0.5 to 1.5 parts of preservative;
the weight of the acrylic resin emulsion is greater than or equal to the weight of the natural asphalt, and the weight ratio of the acrylic resin emulsion to the styrene-butadiene-styrene block copolymer emulsion is 8: 1.
2. The waterproof coating material according to claim 1, characterized in that:
the defoaming agent is a mineral oil metal soap type defoaming agent;
the thickening agent is an alkali swelling thickening agent;
the preservative is a kasong preservative.
3. The waterproof coating material according to claim 1, wherein the natural asphalt dispersion liquid is composed of 1500 parts by weight of natural asphalt, 500 parts by weight of water and 20 parts by weight of a dispersant.
4. The waterproof coating material according to claim 1, wherein the following raw material components are used:
550 parts of natural asphalt dispersion liquid, 1 part of defoaming agent, 400 parts of acrylic resin emulsion, 50 parts of styrene-butadiene-styrene block copolymer emulsion, 4 parts of thickening agent and 1 part of preservative.
5. A method for preparing the waterproof coating material according to any one of claims 1 to 4, characterized by comprising the steps of:
(1) preparing a natural asphalt dispersion liquid: respectively putting natural asphalt, water and a dispersing agent into a first ball mill for dispersion grinding until the fineness of the material reaches 200 meshes, so as to obtain a natural asphalt mixture; then introducing the natural asphalt mixture into a second ball mill for fine processing until the fineness of the material reaches 800 meshes to obtain a natural asphalt dispersion liquid;
(2) adding a defoaming agent under the condition of stirring the natural asphalt dispersion liquid at the speed of 300 revolutions per minute and continuously stirring for 10 minutes at the same speed to obtain a defoaming material;
(3) adding the first resin emulsion and the second resin emulsion into the defoaming material, stirring at the speed of 300 revolutions per minute for 20 minutes, then adding the thickening agent, and continuing to stir at the same speed for 5 minutes to obtain a thickened material;
(4) adding a preservative into the thickening material and stirring at the speed of 300 revolutions per minute for 30 minutes to obtain the waterproof coating.
6. The method of claim 5, wherein the adding the first resin emulsion and the second resin emulsion to the defoaming material and stirring at 300 rpm for 20 minutes is performed by adding the first resin emulsion to the defoaming material and stirring at 300 rpm for 5 minutes, followed by adding the second resin emulsion and continuing stirring at 300 rpm for 15 minutes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339887.7A CN107936839B (en) | 2017-12-14 | 2017-12-14 | High-elasticity rubber asphalt waterproof coating and preparation method thereof |
| PCT/CN2018/087732 WO2019114195A1 (en) | 2017-12-14 | 2018-05-22 | Highly elastic rubber asphalt waterproof coating and preparation method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339887.7A CN107936839B (en) | 2017-12-14 | 2017-12-14 | High-elasticity rubber asphalt waterproof coating and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107936839A CN107936839A (en) | 2018-04-20 |
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| CN107936839B (en) * | 2017-12-14 | 2020-01-14 | 沧州市临港隆达化工有限公司 | High-elasticity rubber asphalt waterproof coating and preparation method thereof |
| CN110922894A (en) * | 2019-12-30 | 2020-03-27 | 北新禹王防水科技(安徽)有限公司 | SBS modified asphalt waterproof coating and preparation method thereof |
| CN114525049B (en) * | 2022-01-20 | 2023-03-28 | 费米子(深圳)科技有限公司 | High-heat-resistance smokeless non-cured rubber asphalt waterproof coating and preparation method thereof |
| CN114437629A (en) * | 2022-03-03 | 2022-05-06 | 广东台实实业有限公司 | Indoor waterproof coating and construction method thereof |
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| CN1673303A (en) * | 2004-03-26 | 2005-09-28 | 天津市市政工程研究院 | Composite waterproof bridge paint and its prepn process |
| CN102936460A (en) * | 2012-09-20 | 2013-02-20 | 吴江市天源塑胶有限公司 | Asphalt rubber waterproof coating material |
| CN103205204A (en) * | 2013-04-17 | 2013-07-17 | 昆明风行防水材料有限公司 | High-strength rubber asphalt waterproof paint and preparation method thereof |
| CN107298944A (en) * | 2017-07-25 | 2017-10-27 | 宁波新灵防水材料有限公司 | Soluble asphalt anticorrosive paint |
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| US7264667B2 (en) * | 2004-07-15 | 2007-09-04 | American Gilsonite Company, Inc. | Pretreated aggregate for hotmix asphalt concrete applications and other related applications |
| CN103627258B (en) * | 2012-08-23 | 2015-01-07 | 山东北方创信防水技术有限公司 | Spraying quick-setting rubber asphalt waterproof coating material |
| CN102993968A (en) * | 2012-11-30 | 2013-03-27 | 山东北方创信防水技术有限公司 | Special spraying and quick-setting rubber waterproof coating for sewage treatment plant |
| CN106085234B (en) * | 2016-06-21 | 2019-07-16 | 沈阳建筑大学 | Honest rock modified waterproof asphalt material of cloth and preparation method thereof |
| CN106281025A (en) * | 2016-08-23 | 2017-01-04 | 天津市京建建筑防水工程有限公司 | A kind of uncured rubber asphalt waterproof coating of environment friendly flame-retardant and preparation method thereof |
| KR101810550B1 (en) * | 2017-05-23 | 2017-12-19 | 김영옥 | Bridge deck Waterproof composition and complex waterproof method using fiber reinforcing agent |
| CN107936839B (en) * | 2017-12-14 | 2020-01-14 | 沧州市临港隆达化工有限公司 | High-elasticity rubber asphalt waterproof coating and preparation method thereof |
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| CN1673303A (en) * | 2004-03-26 | 2005-09-28 | 天津市市政工程研究院 | Composite waterproof bridge paint and its prepn process |
| CN102936460A (en) * | 2012-09-20 | 2013-02-20 | 吴江市天源塑胶有限公司 | Asphalt rubber waterproof coating material |
| CN103205204A (en) * | 2013-04-17 | 2013-07-17 | 昆明风行防水材料有限公司 | High-strength rubber asphalt waterproof paint and preparation method thereof |
| CN107298944A (en) * | 2017-07-25 | 2017-10-27 | 宁波新灵防水材料有限公司 | Soluble asphalt anticorrosive paint |
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| WO2019114195A1 (en) | 2019-06-20 |
| CN107936839A (en) | 2018-04-20 |
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