CN110713795A - Single-component aqueous high-solid-content high-elastic creep type rubber asphalt waterproof coating and preparation method thereof - Google Patents
Single-component aqueous high-solid-content high-elastic creep type rubber asphalt waterproof coating and preparation method thereof Download PDFInfo
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- 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
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
A single-component aqueous high-solid-content high-elastic creep type rubber asphalt waterproof coating and a preparation method thereof comprise the following components: 20-30 parts of anionic emulsified asphalt, 20-30 parts of liquid tackifying resin, 20-30 parts of acrylate emulsion, 10-20 parts of rubber emulsion, 0.1-0.2 part of wetting agent, 0.1-0.2 part of dispersing agent, 0.1-0.2 part of defoaming agent, 0.1-0.2 part of thixotropic thickening agent, 0.1-0.2 part of mildew preventive, 3-5 parts of antifreezing agent and 10-40 parts of filler. Putting the two acrylic acid emulsions into a dispersion cylinder, adding a wetting agent, a dispersing agent, a defoaming agent and a thickening agent, and uniformly dispersing; then slowly adding the filler, and dispersing at a high speed to be uniform, fine and pasty; then reducing the stirring speed, and sequentially adding tackifying resin, rubber emulsion, anionic emulsified asphalt, mildew preventive, antifreezing agent and thickening agent. By self-preparing the acrylate emulsion with low glass transition temperature, matching with the liquid tackifying resin and the rubber emulsion and adding the filler, the high solid content of the coating is greatly improved, the bonding strength of the coating is improved, the drying time is shortened, and the operation is simple.
Description
Technical Field
The invention relates to the field of coatings, in particular to a single-component aqueous high-solid-content high-elasticity creep type rubber asphalt waterproof coating and a preparation method thereof.
Background
With the national requirements on construction environment and the higher requirements on construction safety of constructors, the disadvantages and inherent defects of the performance of the currently used hot-melt non-cured rubber asphalt waterproof coating are as follows: firstly, the heating temperature is as high as about 190 ℃, the energy consumption is large, the smoke is dense, and the most important is that the heat stability of core components is reduced sharply due to relatively long heating and heat-preserving time, and finally the service life of the material is shortened. Secondly, because the non-cured rubber asphalt contains a certain amount of liquid components such as mineral oil and the like, the waterproof material is in a creep state in a short period, and the cohesive strength is insufficient, so that the vertical face construction cannot be carried out; over time, the material loses creep and elongation is greatly reduced. Thirdly, the material cannot be constructed under the condition of a wet foundation surface. Fourthly, the main component of the material has poor aging resistance and short service life. In view of the above, there is an urgent need to develop new products for gradual replacement.
The two-component water-based non-curing rubber asphalt waterproof coating produced at present has the following characteristics: firstly, the security of construction has been improved, if the cold construction of normal atmospheric temperature, avoid catching fire or scald etc. secondly can damp the face and apply the instrument. Thirdly, the bonding strength between the base surface and the reinforcing layer is greatly improved, and the creep property of the material can be kept for a long time. But the material also has obvious defects, such as the need of special equipment for construction; the construction of the reinforcing layer can be carried out only after the water in the waterproof material layer is volatilized, and the working time is long; the material cost is high.
Disclosure of Invention
The invention aims to solve the technical problem of providing a single-component aqueous high-solid-content high-elastic creep type rubber asphalt waterproof coating and a preparation method thereof, and solves the defects that the existing double-component aqueous non-cured coating needs special equipment for construction, has relatively long construction period, cannot be constructed on a vertical surface and the like.
In order to solve the technical problems, the technical scheme of the invention is as follows: a single-component aqueous high-solid-content high-elastic creep type rubber asphalt waterproof coating comprises the following components: 20-30 parts of anionic emulsified asphalt, 20-30 parts of liquid tackifying resin, 20-30 parts of acrylate emulsion, 10-20 parts of rubber emulsion, 0.1-0.2 part of wetting agent, 0.1-0.2 part of dispersing agent, 0.1-0.2 part of defoaming agent, 0.1-0.2 part of thixotropic thickening agent, 0.1-0.2 part of mildew inhibitor, 3-5 parts of antifreezing agent and 10-40 parts of filler; the tackifying resin is water-soluble liquid modified rosin resin, and the acrylate emulsion comprises high-molecular-weight pressure-sensitive adhesive emulsion with the glass transition temperature (Tg) of-50 ℃ to-60 ℃ and low-molecular-weight pressure-sensitive adhesive emulsion with the glass transition temperature (Tg) of-20 ℃ to-30 ℃. According to the invention, the high solid content of the coating is greatly improved, the bonding strength of the coating is improved, the drying time is shortened, the operation is simple, and the coating can be used after being opened.
As an improvement, the anionic emulsified asphalt consists of matrix asphalt, a stabilizer, deionized water and an emulsifier.
As an improvement, the rubber emulsion is styrene-butadiene latex with the glass transition temperature (Tg) of-50 ℃ to-60 ℃.
As an improvement, the filler is heavy calcium carbonate, kaolin or talcum powder.
As an improvement, the thixotropic thickener is magnesium aluminum silicate or lithium magnesium silicate.
As an improvement, the antifreezing agent is ethylene glycol or propylene glycol.
As an improvement, the wetting agent is X-405, the defoaming agent is AL-8100, the dispersing agent is 5040, and the mildew preventive is P001G.
The preparation method of the single-component aqueous high-solid-content high-elastic creep type rubber asphalt waterproof coating comprises the following steps of: putting the two acrylic acid emulsions into a dispersion cylinder, adding a wetting agent, a dispersing agent, a defoaming agent and a thickening agent, and uniformly dispersing; then slowly adding the filler, and dispersing at a high speed to be uniform, fine and pasty; then reducing the stirring speed, and sequentially adding tackifying resin, rubber emulsion, anionic emulsified asphalt, mildew preventive, antifreezing agent and thickening agent.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the high solid content of the coating is greatly improved, the bonding strength of the coating is improved, the drying time is shortened, the operation is simple, and the coating can be used after being opened.
Detailed Description
Example 1
The water-based non-cured rubber asphalt waterproof coating comprises the following components: 20 parts of anionic emulsified asphalt, 10 parts of high molecular weight acrylic emulsion, 10 parts of low molecular weight acrylic emulsion, 10 parts of rubber emulsion, 20 parts of liquid tackifying resin, 0.2 part of dispersing agent, 0.2 part of wetting agent, 0.2 part of defoaming agent, 0.2 part of thickening agent, 3 parts of antifreezing agent, 0.2 part of mildew preventive and 30 parts of filler.
The anionic emulsified asphalt is prepared from matrix asphalt, an emulsifier, a stabilizer and deionized water according to the mass ratio of 100: 0.1: 0.1: 80.
The high molecular weight acrylic emulsion is a high molecular weight pressure sensitive adhesive emulsion with a glass transition temperature (Tg) of-50 ℃ to-60 ℃; the low molecular weight acrylic emulsion is a low molecular weight pressure sensitive adhesive emulsion with a glass transition temperature (Tg) of-20 ℃ to-30 ℃. The acrylate emulsion is composed of styrene, isooctyl acrylate, hydroxyethyl methacrylate, acrylic acid, an anionic emulsifier, a nonionic emulsifier, a buffering agent, an initiator and deionized water according to a mass ratio of 10:40:5:5:2:4:0.5:2: 55. Wherein, the anionic emulsifier is 073, the nonionic emulsifier is 407, the pH regulator is baking soda, and the initiator is potassium persulfate.
The tackifying resin is water-soluble liquid modified rosin resin.
The rubber emulsion is styrene-butadiene latex with the glass transition temperature (Tg) of-50 ℃ to-60 ℃.
The filler is heavy calcium, kaolin or talcum powder, the thixotropic thickener is magnesium aluminum silicate or magnesium lithium silicate, the antifreezing agent is ethylene glycol or propylene glycol, the wetting agent is X-405, the defoaming agent is AL-8100, the dispersing agent is 5040, and the mildew preventive is P001G.
The preparation method of the single-component aqueous high-solid-content high-elastic creep type rubber asphalt waterproof coating comprises the following steps of: adding 10 parts of high molecular weight acrylate emulsion and 10 parts of low molecular weight acrylate emulsion into a dispersion cylinder, adding 0.2 part of wetting agent, 0.2 part of dispersing agent, 0.2 part of thickening agent and 0.2 part of defoaming agent, and uniformly dispersing; then slowly adding 30 parts of 1250-mesh heavy calcium powder, and dispersing at high speed to fine slurry; then, sequentially adding 10 parts of rubber emulsion and 20 parts of tackifying resin, and uniformly mixing; and finally, adding 20 parts of anionic emulsified asphalt, 3 parts of antifreezing agent and 0.2 part of mildew preventive, and uniformly stirring.
The preparation method of the anionic emulsified asphalt comprises the following steps: firstly, heating the mixed solution of emulsifier, caustic soda, polyvinyl alcohol and water to 80-90 ℃, then adding the heated and melted asphalt into the mixed solution, and emulsifying by a colloid mill to obtain the anionic emulsified asphalt.
The preparation method of the acrylic emulsion comprises the following steps: adding water, an emulsifier, sodium bicarbonate, acrylic acid, acrylate and styrene into a reaction kettle for emulsification, and heating to 70 ℃ until blue light appears to form seed emulsion; then emulsifying the rest water, the emulsifier, the styrene, the acrylate monomer, the acrylic acid and the like in an emulsifying cylinder to obtain pre-emulsion; dropwise adding the pre-emulsion into a reaction kettle at the temperature of 85 ℃ for 4 hours; then, the acrylic ester emulsion is obtained after heat preservation and temperature reduction.
Example 2
The water-based non-cured rubber asphalt waterproof coating comprises the following components: 25 parts of anionic emulsified asphalt, 10 parts of high molecular weight acrylic emulsion, 15 parts of low molecular weight acrylic emulsion, 15 parts of rubber emulsion, 20 parts of liquid tackifying resin, 0.2 part of dispersing agent, 0.2 part of wetting agent, 0.2 part of defoaming agent, 0.2 part of thickening agent, 5 parts of antifreezing agent, 0.2 part of mildew preventive and 40 parts of filler.
The anionic emulsified asphalt is prepared from matrix asphalt, an emulsifier, a stabilizer and deionized water according to the mass ratio of 100: 0.2: 0.2: 90.
The high molecular weight acrylic emulsion is a high molecular weight pressure sensitive adhesive emulsion with a glass transition temperature (Tg) of-50 ℃ to-60 ℃; the low molecular weight acrylic emulsion is a low molecular weight pressure sensitive adhesive emulsion with a glass transition temperature (Tg) of-20 ℃ to-30 ℃. The acrylate emulsion is composed of styrene, isooctyl acrylate, hydroxyethyl methacrylate, acrylic acid, an anionic emulsifier, a nonionic emulsifier, a buffering agent, an initiator and deionized water according to a mass ratio of 10:40:5:5:2:4:0.5:2: 55. Wherein, the anionic emulsifier is 073, the nonionic emulsifier is 407, the pH regulator is baking soda, and the initiator is potassium persulfate.
The tackifying resin is water-soluble liquid modified rosin resin.
The rubber emulsion is styrene-butadiene latex with the glass transition temperature (Tg) of-50 ℃ to-60 ℃.
The filler is heavy calcium, kaolin or talcum powder, the thixotropic thickener is magnesium aluminum silicate or magnesium lithium silicate, the antifreezing agent is ethylene glycol or propylene glycol, the wetting agent is X-405, the defoaming agent is AL-8100, the dispersing agent is 5040, and the mildew preventive is P001G.
The preparation method of the single-component aqueous high-solid-content high-elastic creep type rubber asphalt waterproof coating comprises the following steps of: adding 10 parts of high molecular weight acrylate emulsion and 15 parts of low molecular weight acrylate emulsion into a dispersion cylinder, adding 0.2 part of wetting agent, 0.2 part of dispersing agent, 0.2 part of thickening agent and 0.2 part of defoaming agent, and uniformly dispersing; then slowly adding 40 parts of 1250-mesh heavy calcium powder, and dispersing at high speed to fine slurry; then, sequentially adding 10 parts of rubber emulsion and 20 parts of tackifying resin, and uniformly mixing; and finally, adding 25 parts of anionic emulsified asphalt, 5 parts of antifreezing agent and 0.2 part of mildew preventive, and uniformly stirring.
The preparation method of the anionic emulsified asphalt comprises the following steps: firstly, heating the mixed solution of emulsifier, caustic soda, polyvinyl alcohol and water to 80-90 ℃, then adding the heated and melted asphalt into the mixed solution, and emulsifying by a colloid mill to obtain the anionic emulsified asphalt.
The preparation method of the acrylic emulsion comprises the following steps: adding water, an emulsifier, sodium bicarbonate, acrylic acid, acrylate and styrene into a reaction kettle for emulsification, and heating to 70 ℃ until blue light appears to form seed emulsion; then emulsifying the rest water, the emulsifier, the styrene, the acrylate monomer, the acrylic acid and the like in an emulsifying cylinder to obtain pre-emulsion; dropwise adding the pre-emulsion into a reaction kettle at the temperature of 85 ℃ for 4 hours; then, the acrylic ester emulsion is obtained after heat preservation and temperature reduction.
Example 3
The water-based non-cured rubber asphalt waterproof coating comprises the following components: 30 parts of anionic emulsified asphalt, 15 parts of high molecular weight acrylic emulsion, 15 parts of low molecular weight acrylic emulsion, 20 parts of rubber emulsion, 20 parts of liquid tackifying resin, 0.2 part of dispersing agent, 0.2 part of wetting agent, 0.2 part of defoaming agent, 0.2 part of thickening agent, 5 parts of antifreezing agent, 0.2 part of mildew preventive and 40 parts of filler.
The anionic emulsified asphalt is prepared from matrix asphalt, an emulsifier, a stabilizer and deionized water according to the mass ratio of 100: 0.2: 0.2: 100.
The high molecular weight acrylic emulsion is a high molecular weight pressure sensitive adhesive emulsion with a glass transition temperature (Tg) of-50 ℃ to-60 ℃; the low molecular weight acrylic emulsion is a low molecular weight pressure sensitive adhesive emulsion with a glass transition temperature (Tg) of-20 ℃ to-30 ℃. The acrylate emulsion is composed of styrene, isooctyl acrylate, hydroxyethyl methacrylate, acrylic acid, an anionic emulsifier, a nonionic emulsifier, a buffering agent, an initiator and deionized water according to a mass ratio of 10:40:5:5:2:4:0.5:2: 55. Wherein, the anionic emulsifier is 073, the nonionic emulsifier is 407, the pH regulator is baking soda, and the initiator is potassium persulfate.
The tackifying resin is water-soluble liquid modified rosin resin.
The rubber emulsion is styrene-butadiene latex with the glass transition temperature (Tg) of-50 ℃ to-60 ℃.
The filler is heavy calcium, kaolin or talcum powder, the thixotropic thickener is magnesium aluminum silicate or magnesium lithium silicate, the antifreezing agent is ethylene glycol or propylene glycol, the wetting agent is X-405, the defoaming agent is AL-8100, the dispersing agent is 5040, and the mildew preventive is P001G.
The preparation method of the single-component aqueous high-solid-content high-elastic creep type rubber asphalt waterproof coating comprises the following steps of: adding 15 parts of high molecular weight acrylate emulsion and 15 parts of low molecular weight acrylate emulsion into a dispersion cylinder, adding 0.2 part of wetting agent, 0.2 part of dispersing agent, 0.2 part of thickening agent and 0.2 part of defoaming agent, and uniformly dispersing; then slowly adding 40 parts of 1250-mesh heavy calcium powder, and dispersing at high speed to fine slurry; then, sequentially adding 20 parts of rubber emulsion and 20 parts of tackifying resin, and uniformly mixing; and finally, adding 30 parts of anionic emulsified asphalt, 5 parts of antifreezing agent and 0.2 part of mildew preventive, and uniformly stirring.
The preparation method of the anionic emulsified asphalt comprises the following steps: firstly, heating the mixed solution of emulsifier, caustic soda, polyvinyl alcohol and water to 80-90 ℃, then adding the heated and melted asphalt into the mixed solution, and emulsifying by a colloid mill to obtain the anionic emulsified asphalt.
The preparation method of the acrylic emulsion comprises the following steps: adding water, an emulsifier, sodium bicarbonate, acrylic acid, acrylate and styrene into a reaction kettle for emulsification, and heating to 70 ℃ until blue light appears to form seed emulsion; then emulsifying the rest water, the emulsifier, the styrene, the acrylate monomer, the acrylic acid and the like in an emulsifying cylinder to obtain pre-emulsion; dropwise adding the pre-emulsion into a reaction kettle at the temperature of 85 ℃ for 4 hours; then, the acrylic ester emulsion is obtained after heat preservation and temperature reduction.
In combination with the aqueous non-curing rubber asphalt waterproofing coatings prepared in examples 1 to 3, see the following characteristic parameter tables:
Claims (10)
1. the single-component aqueous high-solid-content high-elastic creep type rubber asphalt waterproof coating is characterized by comprising the following components: 20-30 parts of anionic emulsified asphalt, 20-30 parts of liquid tackifying resin, 20-30 parts of acrylate emulsion, 10-20 parts of rubber emulsion, 0.1-0.2 part of wetting agent, 0.1-0.2 part of dispersing agent, 0.1-0.2 part of defoaming agent, 0.1-0.2 part of thixotropic thickening agent, 0.1-0.2 part of mildew inhibitor, 3-5 parts of antifreezing agent and 10-40 parts of filler; the tackifying resin is water-soluble liquid modified rosin resin, and the acrylate emulsion comprises high-molecular-weight pressure-sensitive adhesive emulsion with the glass transition temperature (Tg) of-50 ℃ to-60 ℃ and low-molecular-weight pressure-sensitive adhesive emulsion with the glass transition temperature (Tg) of-20 ℃ to-30 ℃.
2. The single-component aqueous high-solid-content high-elastic creep rubber asphalt waterproof coating material as claimed in claim 1, wherein: the anionic emulsified asphalt consists of matrix asphalt, a stabilizer, deionized water and an emulsifier.
3. The single-component aqueous high-solid-content high-elastic creep rubber asphalt waterproof coating material as claimed in claim 1, wherein: the rubber emulsion is styrene-butadiene latex with the glass transition temperature (Tg) of-50 ℃ to-60 ℃.
4. The single-component aqueous high-solid-content high-elastic creep rubber asphalt waterproof coating material as claimed in claim 1, wherein: the filler is heavy calcium, kaolin or talcum powder.
5. The single-component aqueous high-solid-content high-elastic creep rubber asphalt waterproof coating material as claimed in claim 1, wherein: the thixotropic thickener is magnesium aluminum silicate or magnesium lithium silicate.
6. The single-component aqueous high-solid-content high-elastic creep rubber asphalt waterproof coating material as claimed in claim 1, wherein: the antifreezing agent is ethylene glycol or propylene glycol.
7. The single-component aqueous high-solid-content high-elastic creep rubber asphalt waterproof coating material as claimed in claim 1, wherein: the wetting agent is X-405, the defoaming agent is AL-8100, the dispersing agent is 5040, and the mildew preventive is P001G.
8. The preparation method of the single-component aqueous high-solid-content high-elastic creep rubber asphalt waterproof coating material as claimed in claim 1, which is characterized by comprising the following steps: putting the two acrylic acid emulsions into a dispersion cylinder, adding a wetting agent, a dispersing agent, a defoaming agent and a thickening agent, and uniformly dispersing; then slowly adding the filler, and dispersing at a high speed to be uniform, fine and pasty; then reducing the stirring speed, and sequentially adding tackifying resin, rubber emulsion, anionic emulsified asphalt, mildew preventive, antifreezing agent and thickening agent.
9. The preparation method of the single-component aqueous high-solid-content high-elastic creep type rubber asphalt waterproof coating material according to claim 8, which is characterized by comprising the following steps of: the preparation method of the anionic emulsified asphalt comprises the following steps: firstly, heating the mixed solution of emulsifier, caustic soda, polyvinyl alcohol and water to 80-90 ℃, then adding the heated and melted asphalt into the mixed solution, and emulsifying by a colloid mill to obtain the anionic emulsified asphalt.
10. The preparation method of the single-component aqueous high-solid-content high-elastic creep type rubber asphalt waterproof coating material according to claim 8, which is characterized by comprising the following steps of: the preparation method of the acrylic emulsion comprises the following steps: adding water, an emulsifier, sodium bicarbonate, acrylic acid, acrylate and styrene into a reaction kettle for emulsification, and heating to 70 ℃ until blue light appears to form seed emulsion; then emulsifying the rest water, the emulsifier, the styrene, the acrylate monomer, the acrylic acid and the like in an emulsifying cylinder to obtain pre-emulsion; dropwise adding the pre-emulsion into a reaction kettle at the temperature of 85 ℃ for 4 hours; then, the acrylic ester emulsion is obtained after heat preservation and temperature reduction.
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| CN111793436A (en) * | 2020-07-20 | 2020-10-20 | 上海三棵树防水技术有限公司 | Single-component asphalt-based water-based non-cured rubber asphalt waterproof coating and preparation method thereof |
| CN111849356A (en) * | 2020-07-25 | 2020-10-30 | 远大洪雨（唐山）防水材料有限公司 | Two-component water-based non-cured rubber asphalt waterproof coating and preparation method thereof |
| CN112625530A (en) * | 2021-01-15 | 2021-04-09 | 中建友（唐山）科技有限公司 | Water-based rubber asphalt waterproof coating |
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| CN116102980A (en) * | 2022-09-08 | 2023-05-12 | 广州集泰化工股份有限公司 | Anionic asphalt waterproof paint and preparation method and application thereof |
| CN116144267A (en) * | 2023-03-13 | 2023-05-23 | 常鑫防水科技股份有限公司 | Spray-coating water-based non-cured rubber asphalt waterproof paint and preparation method thereof |
| CN116333680A (en) * | 2023-05-31 | 2023-06-27 | 四川金兴邑都建筑材料有限公司 | Preparation method of water-based environment-friendly creep caulking sealant |
| CN116622289A (en) * | 2023-04-14 | 2023-08-22 | 国网新源集团有限公司 | Waterproof bonding type spray-coating quick-setting liquid rubber waterproof composite coating and preparation method and application thereof |
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| CN111849356A (en) * | 2020-07-25 | 2020-10-30 | 远大洪雨（唐山）防水材料有限公司 | Two-component water-based non-cured rubber asphalt waterproof coating and preparation method thereof |
| CN112625530A (en) * | 2021-01-15 | 2021-04-09 | 中建友（唐山）科技有限公司 | Water-based rubber asphalt waterproof coating |
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| CN115975507A (en) * | 2023-01-11 | 2023-04-18 | 兰州丰洋新材料科技有限公司 | High-viscosity anti-slip water-based non-cured asphalt waterproof coating and preparation method thereof |
| CN116144267A (en) * | 2023-03-13 | 2023-05-23 | 常鑫防水科技股份有限公司 | Spray-coating water-based non-cured rubber asphalt waterproof paint and preparation method thereof |
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