CN115572544B - Single-component water-based non-cured rubber asphalt waterproof paint, and preparation method and application thereof - Google Patents

Single-component water-based non-cured rubber asphalt waterproof paint, and preparation method and application thereof Download PDF

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CN115572544B
CN115572544B CN202211287156.3A CN202211287156A CN115572544B CN 115572544 B CN115572544 B CN 115572544B CN 202211287156 A CN202211287156 A CN 202211287156A CN 115572544 B CN115572544 B CN 115572544B
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parts
stirring
emulsion
thickener
cured rubber
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CN115572544A (en
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张广彬
张艺萌
桑丽娜
任军辉
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Shengli Oil Field Dynamic New Type Waterproof Building Materials Co ltd
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Shengli Oil Field Dynamic New Type Waterproof Building Materials Co ltd
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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
    • 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
    • C09D7/65—Additives macromolecular
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation

Abstract

The invention relates to a single-component water-based non-cured rubber asphalt waterproof coating, a preparation method and application thereof. The technical proposal is as follows: the material consists of the following raw materials in parts by weight: 350-450 parts of emulsified asphalt, 200-300 parts of elastic emulsion, 40-80 parts of plasticizer emulsion, 5-8 parts of alkali liquor, 200-300 parts of filler, 30-60 parts of deionized water, 2-5 parts of defoamer, 1-5 parts of dispersing agent, 1-3 parts of bactericide, 4-8 parts of thickener and 0-3 parts of cross-linking agent. The invention combines the advantages of the conventional hot-melt non-curing rubber asphalt coating and the water asphalt waterproof coating, and has the beneficial effects that: the water emulsion type design and the environment are friendly; the single component is packaged and used conveniently; the elongation is high, and the adaptability of the base layer is strong; the creep property and the self-healing property are strong, and cracks are automatically filled under the action of pressure and the like; the adhesive strength is high, and the adhesive and the self-adhesive coiled material or the hot-melt coiled material can form an efficient 'coil coating' composite waterproof system.

Description

Single-component water-based non-cured rubber asphalt waterproof paint, and preparation method and application thereof
Technical Field
The invention relates to a non-cured rubber asphalt waterproof coating, in particular to a single-component water-based non-cured rubber asphalt waterproof coating, a preparation method and application thereof.
Background
The non-cured rubber asphalt waterproof paint and the application technology thereof are introduced into China from korea in the early period of the century, and the material consists of high-quality petroleum asphalt, a rubber modifier, a special additive and the like, has the characteristic of never curing and the function of the waterproof paint, and is named as the non-cured rubber asphalt waterproof paint. The non-cured rubber asphalt waterproof paint belongs to a solvent-free non-reactive non-film-forming single-component creep type paint, and has good binding capacity with metal, nonmetal, concrete and other base materials. The waterproof asphalt coiled material has the characteristics of no need of maintenance, excellent composite effect with asphalt coiled materials, and the like, thus being widely accepted in the industry and widely applied to waterproofing of municipal engineering, subway tunnels, dykes and dams, ponds, roads and bridges, roofs, toilets, underground parts and the like.
However, from the whole domestic situation, the product performance is still greatly different from that of foreign countries, for example, the product has the technical defects of insignificant characteristics of high heat resistance and low viscosity, general spraying construction after heating to 150-200 ℃, sliding after compounding the facade part and the coiled material, large volatilization of smoke in the production and spraying processes, easy gun blockage during spraying construction, non-lasting visco-elastic paste and the like. Some published literature reports in recent years also confirm this status, for example:
document 1, chinese patent number 202111457486.8, patent name of the patent is "high heat-resistant non-curing rubber asphalt waterproof paint and preparation method", its technical scheme is made up of the following raw materials by weight: 80-90 parts of petroleum asphalt, 7-10 parts of modifier, 4-6 parts of tackifier, 5-10 parts of permanent plasticizer, 4-9 parts of functional auxiliary agent, 40-45 parts of compatilizer and 45-50 parts of filler. The invention solves the contradiction between heat resistance and non-solidification state, and improves the heat resistance of the product from 65 ℃ to more than 90 ℃ on the basis of keeping the sticky paste; the contradiction between heat resistance and viscosity is solved, the viscosity at 130 ℃ is greatly reduced on the premise of greatly improving the heat resistance, and the spraying construction at a lower temperature is realized; the contradiction between the composite slip resistance of the coiled material and the extensibility is overcome, the composite slip resistance of the coiled material is obviously improved on the premise of keeping higher extensibility, and the difficult problem of composite construction of the elevation part and the coiled material is solved. However, although the invention solves a plurality of problems in practical application, the problems of low field heating and melting efficiency, high energy consumption, field safety, smoke volatilization and the like still exist in the construction process, and the invention is not beneficial to the environmental protection requirement of the construction field.
Document 2, chinese patent No. 201610831231.6, entitled "an anionic water-based non-curable rubber asphalt waterproof paint and preparation method thereof", has the technical scheme that: (1) uniformly stirring and mixing 85-95 parts by mass of anionic rubber modified asphalt emulsion, 2-5 parts by mass of anionic SBR latex, 4-7 parts by mass of anionic neoprene latex, 0.1-1 part by mass of wax emulsion and 0.5-2.5 parts by mass of aqueous graphene slurry to obtain a component A; dissolving inorganic salt in water to prepare inorganic salt solution with the concentration of 10-30% to obtain a component B; the component A and the component B are mixed according to the mass ratio of 5-15:1, spraying and mixing by a spray gun to obtain the anionic water-based non-cured rubber modified asphalt waterproof paint; wherein the anionic rubber modified asphalt emulsion comprises the following components in percentage by mass: 15-25:3-6:5-8:0.1-0.3:0.2-0.4:35-50 of matrix asphalt, tackifier, rubber elastomer, anionic emulsifier, stabilizer, PH regulator and water are emulsified by a colloid mill. The product of the invention has the advantages of stable storage, no organic solvent, environmental protection, no pollution, good non-curing effect, strong waterproof performance, convenient preparation and simple process. The problems that exist are: although the product disclosed in the document 2 solves the problems of low heating and melting efficiency, high energy consumption, site safety, smoke volatilization and the like in the document 1 through water-based design; the paint meets the environmental protection requirement under the double-carbon policy, but the paint adopts the double-component design, so that the paint is used after being proportioned according to proportion in construction application, and is only suitable for spraying construction, and is not suitable for manual painting operation of special parts with limited operation space.
Disclosure of Invention
The invention aims at overcoming the defects in the prior art, and provides the single-component water-based non-cured rubber asphalt waterproof paint, the preparation method and the application thereof, which integrates the performances of environmental friendliness, viscoelastic paste, self-healing property, high heat resistance, high adhesiveness and the like, has the technical characteristics of no sagging in cold construction and vertical wall construction, high construction efficiency and the like, improves the adaptability, the construction convenience and the reliability of a base layer of the single-component water-based non-cured rubber asphalt waterproof paint, and widens the application field.
The invention relates to a single-component water-based non-cured rubber asphalt waterproof paint, which has the technical scheme that: the material consists of the following raw materials in parts by weight: 350-450 parts of emulsified asphalt, 200-300 parts of elastic emulsion, 40-80 parts of plasticizer emulsion, 5-8 parts of alkali liquor, 200-300 parts of filler, 30-60 parts of deionized water, 2-5 parts of defoamer, 1-5 parts of dispersing agent, 1-3 parts of bactericide, 4-8 parts of thickener and 0-3 parts of cross-linking agent;
wherein, the emulsified asphalt adopts anionic emulsified asphalt or nonionic emulsified asphalt with the solid content of 50-60 percent, and the elastic emulsion is anionic styrene-acrylic elastic emulsion with the solid content of more than or equal to 50 percent; the dispersing agent is a sodium salt dispersing agent of low molecular weight polyacrylic acid, the defoaming agent is a nonionic metal soap defoaming agent, the bactericide is Defros CP19, the filling material can be but is not limited to heavy calcium carbonate, the crosslinking agent is a hydrocarbon, and the percentages by mass are.
Preferably, the plasticizer emulsion is a nonionic plasticizer composition emulsion having a solids content of 80 to 85%.
Preferably, the nonionic plasticizer composition emulsion is composed of the following raw materials in parts by weight: 20-40 parts of aromatic oil, 30-45 parts of naphthenic oil, 5-8 parts of liquid rosin resin, 0-5 parts of polyisobutene liquid rubber, 4-6 parts of emulsifier and 15-20 parts of deionized water.
Preferably, the thickener is a thixotropic thickener, and specifically, the non-associative alkali swelling thickener and the associative hydrophobic alkali swelling thickener are used together according to a mass ratio of 1:1-1:2.
The preparation method of the single-component water-based non-cured rubber asphalt waterproof paint provided by the invention comprises the following steps:
1) Sequentially adding an emulsifier, aromatic oil, naphthenic oil, liquid rubber, liquid rosin resin and deionized water into a batching kettle, stirring for 30-45 min at a stirring speed of 120r/min, and then adding a defoaming agent and stirring for 5-10 min at a stirring speed of 40-60 r/min to prepare a pre-made plasticizer composition emulsion for later use;
2) Adding deionized water into a batching kettle, then sequentially adding a bactericide, a defoamer, a dispersing agent, an elastic emulsion, alkali liquor and a filling material in a stirring state, and stirring at a stirring speed of 120r/min for 30-40 min to prepare a prefabricated slurry;
3) Then adding a thickening agent and stirring for 5-15 min at a stirring speed of 80-100 r/min;
4) Adding emulsified asphalt and stirring at a stirring speed of 80r/min for 5-10 min under a continuous stirring state, adding plasticizer emulsion and stirring at a rotating speed for 10-20 min, adding cross-linking agent and stirring for 5-10 min, adding thickener and stirring at a stirring speed of 80-100 r/min for 10-20 min, discharging, filtering, metering and filling.
Wherein, the elastic emulsion, the filling material, the emulsified asphalt and the plasticizer composition emulsion are slowly added in a stirring state, and the thickening agent is diluted by 5-10 times of deionized water and then added, so that the materials are fully dissolved, dispersed and uniformly mixed, and the uneven dispersion local agglomeration is prevented.
The application of the single-component water-based non-cured rubber asphalt waterproof paint provided by the invention comprises the following steps:
when the construction method is applied, the single-component water-based non-cured rubber asphalt waterproof paint is painted or sprayed on the surface of the structural concrete foundation layer, and meanwhile, the pits and crack defects on the surface of the concrete are filled with the single-component water-based non-cured rubber asphalt waterproof paint; after curing to form a film, constructing a self-adhesive waterproof roll or a hot-melt waterproof roll main body waterproof layer on the surface of the film, and forming a roll-coating composite waterproof system together with the waterproof roll main body layer.
Compared with the prior art, the invention has the following beneficial effects:
the invention combines the advantages of hot-melt non-curing rubber asphalt paint and water asphalt waterproof paint, solves the contradiction between heat resistance and non-curing state, and improves the heat resistance of the product from 65 ℃ to 90 ℃ on the premise of keeping the adhesive paste; the contradiction between the composite slip resistance and the extensibility of the coiled material is overcome, and the composite slip resistance of the coiled material is obviously improved on the premise of keeping higher extensibility; the coordination balance among the adhesive property, stress relaxation, holding viscosity and peeling strength is realized, and the holding viscosity and the peeling strength between coiled materials are greatly improved on the premise of ensuring cohesive failure adhesion and smaller stress relaxation; the product integrates a plurality of performances such as environmental friendliness, viscoelastic paste, self-healing property, high heat resistance, high adhesiveness and the like, improves the construction convenience and reliability, and widens the application range.
Drawings
FIG. 1 is a schematic cross-sectional view of the construction of a "coil-on" composite waterproofing system for use in the construction of the product of the present invention;
in the upper graph: a single-component water-based non-cured rubber asphalt waterproof coating waterproof sealing layer 1, a self-adhesive waterproof coiled material or a hot-melt waterproof coiled material main waterproof layer 2, a structural concrete foundation layer 3, pit defects 4 on the concrete surface and concrete cracks 5.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention. Examples 1 to 4 are specific embodiments of the one-component aqueous non-curable rubber asphalt waterproof paint of the present invention, and examples 5 to 8 are comparative examples designed by the applicant:
example 1:
the invention relates to a single-component water-based non-cured rubber asphalt waterproof paint which is prepared from the following raw materials in parts by weight: 450 parts of emulsified asphalt, 200 parts of elastic emulsion, 40 parts of plasticizer emulsion, 5 parts of alkali liquor, 200 parts of filler, 30 parts of deionized water, 2 parts of defoamer, 1 part of dispersant, 2 parts of bactericide, 5 parts of thickener and 2 parts of cross-linking agent;
wherein, the emulsified asphalt adopts anionic emulsified asphalt with the solid content of 50 percent, and the elastic emulsion is anionic styrene-acrylic elastic emulsion with the solid content of more than or equal to 50 percent; the plasticizer emulsion adopts nonionic plasticizer composition emulsion with the solid content of 85 percent; the dispersing agent is a sodium salt dispersing agent of low molecular weight polyacrylic acid, the defoaming agent is a nonionic metal soap defoaming agent, the bactericide is Defros CP19, and the mass percentages are as above;
the thickener is a non-associated alkali swelling thickener and an associated hydrophobic alkali swelling thickener which are used cooperatively according to the mass ratio of 1:1.5, and is used for thickening elastic emulsion and asphalt emulsion respectively, so that the thickener has a synergistic thickening effect; the main indexes are as follows: the nonvolatile solid content is 25 to 35 percent by mass and the pH value is 2.0 to 3.5;
the filler adopts heavy calcium carbonate with fineness of 400 meshes; the cross-linking agent is a hydrocarbon compound, whichTypical physical indexes are: the density is 0.87-0.90 g/cm 3 The aniline point is 13-17 ℃, the surface tension is 28-40 mN/m at 25 ℃, the solubility parameter delta=6.0-9.0, and the distillation range is 150-215 ℃;
the alkaline solution adopts KOH solution, and the mass concentration of the alkaline solution is 10-15%.
The preparation method of the single-component water-based non-cured rubber asphalt waterproof paint comprises the following steps:
1) Sequentially adding an emulsifier, aromatic hydrocarbon oil, naphthenic oil, liquid rubber, liquid rosin resin, deionized water and the like into a batching kettle, stirring for 30min at a stirring speed of 120r/min, and then adding a defoaming agent and stirring for 10min at a stirring speed of 60r/min to prepare the pre-plasticizer composition emulsion for later use.
2) Adding deionized water into a batching kettle, sequentially adding a bactericide, a defoamer, a dispersing agent, an elastic emulsion, alkali liquor, a filler and the like under a stirring state, and stirring at a stirring speed of 120r/min for 30min at a high speed to prepare a prefabricated slurry;
3) Then adding the thickener and stirring for 5min at a stirring speed of 80 r/min;
4) Adding emulsified asphalt and stirring at a stirring speed of 80r/min for 5min under a continuous stirring state, adding plasticizer emulsion and stirring at a rotating speed for 20min, adding cross-linking agent and stirring for 5min, adding thickener and stirring at a stirring speed of 80r/min for 10min, discharging, filtering, metering and filling.
The elastic emulsion, the filler, the emulsified asphalt and the plasticizer composition emulsion are slowly added in a stirring state, and the thickener is diluted by 5 times of deionized water before being added, so that the materials are fully dissolved, dispersed and uniformly mixed, and uneven dispersion local agglomeration is prevented.
The product performance test data are shown in Table 1.
As shown in figure 1, the single-component water-based non-cured rubber asphalt waterproof paint is painted or sprayed on the surface of a structural concrete foundation layer 3 during construction application, meanwhile, pit defects 4 and concrete cracks 5 on the concrete surface are filled by the single-component water-based non-cured rubber asphalt waterproof paint, a waterproof sealing layer 1 of the single-component water-based non-cured rubber asphalt waterproof paint is formed after curing and film forming, and a self-adhesive waterproof coiled material or a hot-melt waterproof coiled material main waterproof layer 2 is formed on the surface of the single-component water-based non-cured rubber asphalt waterproof paint by constructing a self-adhesive waterproof coiled material or a hot-melt waterproof coiled material main waterproof layer to form a 'coil-painting' composite waterproof system.
Example 2:
the invention relates to a single-component water-based non-cured rubber asphalt waterproof paint which is prepared from the following raw materials in parts by weight: 420 parts of emulsified asphalt, 210 parts of elastic emulsion, 50 parts of plasticizer emulsion, 7 parts of alkali liquor, 250 parts of filler, 60 parts of deionized water, 3 parts of defoamer, 3 parts of dispersant, 1 part of bactericide, 6 parts of thickener and 3 parts of cross-linking agent.
Wherein, the emulsified asphalt adopts anionic emulsified asphalt with the solid content of 50 percent, and the elastic emulsion is anionic styrene-acrylic elastic emulsion with the solid content of more than or equal to 50 percent; the plasticizer emulsion adopts nonionic plasticizer composition emulsion with the solid content of 85 percent; the dispersing agent is a sodium salt dispersing agent of low molecular weight polyacrylic acid, the defoaming agent is a nonionic metal soap defoaming agent, the bactericide is Defr OS CP19, and the mass percentages are as above.
The thickener is a non-associated alkali swelling thickener and an associated hydrophobic alkali swelling thickener which are cooperatively used according to a mass ratio of 1:2, and is respectively used for thickening elastic emulsion and asphalt emulsion, and has a cooperative thickening effect; the main indexes are as follows: the nonvolatile solid content is 25-35% by mass and the pH value is 2.0-3.5.
The filler adopts heavy calcium carbonate with fineness of 600 meshes; the cross-linking agent is a hydrocarbon, and typical physical indexes are as follows: the density is 0.87-0.90 g/cm 3 The aniline point is 13-17 ℃, the surface tension is 28-40 mN/m at 25 ℃, the solubility parameter delta=6.0-9.0, and the distillation range is 150-215 ℃; the alkaline solution adopts KOH solution, and the mass concentration of the alkaline solution is 10-15%.
The preparation method of the single-component water-based non-cured rubber asphalt waterproof paint comprises the following steps:
1) Sequentially adding an emulsifier, aromatic hydrocarbon oil, naphthenic oil, liquid rubber, liquid rosin resin, deionized water and the like into a batching kettle, stirring for 30min at a stirring speed of 120r/min, and then adding a defoaming agent and stirring for 10min at a stirring speed of 60r/min to prepare the pre-plasticizer composition emulsion for later use.
2) Adding deionized water into a batching kettle, sequentially adding a bactericide, a defoamer, a dispersing agent, an elastic emulsion, alkali liquor, a filler and the like under a stirring state, and stirring at a stirring speed of 120r/min for 40min at a high speed to prepare a prefabricated slurry;
3) Then adding the thickener and stirring for 5min at the stirring speed of 100 r/min;
4) Adding emulsified asphalt and stirring at a stirring speed of 80r/min for 5min under a continuous stirring state, adding plasticizer emulsion and stirring at a rotating speed for 20min, adding cross-linking agent and stirring for 10min, adding thickener and stirring at a stirring speed of 100 r/min for 20min, discharging, filtering, metering and filling.
The elastic emulsion, the filler, the emulsified asphalt and the plasticizer composition emulsion are slowly added in a stirring state, and the thickener is diluted by 8 times of deionized water before being added, so that the materials are fully dissolved, dispersed and uniformly mixed, and uneven dispersion local agglomeration is prevented.
The product performance test data are shown in Table 1.
Example 3:
the invention relates to a single-component water-based non-cured rubber asphalt waterproof paint which is prepared from the following raw materials in parts by weight: 400 parts of emulsified asphalt, 250 parts of elastic emulsion, 60 parts of plasticizer emulsion, 3 parts of alkali liquor, 220 parts of filler, 50 parts of deionized water, 5 parts of defoamer, 2 parts of dispersing agent, 2.5 parts of bactericide, 4 parts of thickener and 1.5 parts of cross-linking agent.
Wherein, the emulsified asphalt adopts anionic emulsified asphalt with the solid content of 50 percent, and the elastic emulsion is anionic styrene-acrylic elastic emulsion with the solid content of more than or equal to 50 percent; the plasticizer emulsion adopts nonionic plasticizer composition emulsion with the solid content of 85 percent; the dispersing agent is a sodium salt dispersing agent of low molecular weight polyacrylic acid, the defoaming agent is a nonionic metal soap defoaming agent, the bactericide is Defr OS CP19, and the mass percentages are as above.
The thickener is a non-associated alkali swelling thickener and an associated hydrophobic alkali swelling thickener which are used cooperatively according to the mass ratio of 1:1.5, and is used for thickening elastic emulsion and asphalt emulsion respectively, so that the thickener has a synergistic thickening effect; the main indexes are as follows: the nonvolatile solid content is 25-35% by mass and the pH value is 2.0-3.5.
The filler adopts heavy calcium carbonate with fineness of 800 meshes; the cross-linking agent is a hydrocarbon, and typical physical indexes are as follows: the density is 0.87-0.90 g/cm 3 The aniline point is 13-17 ℃, the surface tension is 28-40 mN/m at 25 ℃, the solubility parameter delta=6.0-9.0, and the distillation range is 150-215 ℃; the alkaline solution adopts KOH solution, and the mass concentration of the alkaline solution is 10-15%.
The preparation method of the single-component water-based non-cured rubber asphalt waterproof paint comprises the following steps:
1) Sequentially adding an emulsifier, aromatic hydrocarbon oil, naphthenic oil, liquid rubber, liquid rosin resin, deionized water and the like into a batching kettle, stirring for 40min at a stirring speed of 120r/min, and then adding a defoaming agent and stirring for 5min at a stirring speed of 60r/min to prepare the pre-plasticizer composition emulsion for later use.
2) Adding deionized water into a batching kettle, sequentially adding a bactericide, a defoamer, a dispersing agent, an elastic emulsion, alkali liquor, a filler and the like under a stirring state, and stirring at a stirring speed of 120r/min for 30min at a high speed to prepare a prefabricated slurry;
3) Then adding the thickener and stirring for 10min at a stirring speed of 80 r/min;
4) Adding emulsified asphalt and stirring at a stirring speed of 80r/min for 5min under a continuous stirring state, adding plasticizer emulsion and stirring at a rotating speed for 15min, adding cross-linking agent and stirring for 5min, adding thickener and stirring at a stirring speed of 80r/min for 10min, discharging, filtering, metering and filling.
The thickener is diluted by 6 times of deionized water before being added, so that the thickener is favorable for fully dissolving, dispersing and uniformly mixing materials and prevents uneven dispersion from locally agglomerating.
The product performance test data are shown in Table 1.
Example 4:
the invention relates to a single-component water-based non-cured rubber asphalt waterproof paint which is prepared from the following raw materials in parts by weight: 360 parts of emulsified asphalt, 285 parts of elastic emulsion, 70 parts of plasticizer emulsion, 5 parts of alkali liquor, 220 parts of filler, 50 parts of deionized water, 4 parts of defoamer, 2 parts of dispersing agent, 2 parts of bactericide, 4 parts of thickener and 1 part of cross-linking agent.
Wherein, the emulsified asphalt adopts anionic emulsified asphalt with the solid content of 50 percent, and the elastic emulsion is anionic styrene-acrylic elastic emulsion with the solid content of more than or equal to 50 percent; the plasticizer emulsion adopts nonionic plasticizer composition emulsion with the solid content of 85 percent; the dispersing agent is a sodium salt dispersing agent of low molecular weight polyacrylic acid, the defoaming agent is a nonionic metal soap defoaming agent, the bactericide is Defr OS CP19, and the mass percentages are as above.
The thickener is a non-associated alkali swelling thickener and an associated hydrophobic alkali swelling thickener which are cooperatively used according to a mass ratio of 1:2, and is respectively used for thickening elastic emulsion and asphalt emulsion, and has a cooperative thickening effect; the main indexes are as follows: the nonvolatile solid content is 25-35% by mass and the pH value is 2.0-3.5.
The filler adopts heavy calcium carbonate with fineness of 600 meshes; the cross-linking agent is a hydrocarbon, and typical physical indexes are as follows: the density is 0.87-0.90 g/cm 3 The aniline point is 13-17 ℃, the surface tension is 28-40 mN/m at 25 ℃, the solubility parameter delta=6.0-9.0, and the distillation range is 150-215 ℃; the alkaline solution adopts KOH solution, and the mass concentration of the alkaline solution is 10-15%.
The preparation method of the single-component water-based non-cured rubber asphalt waterproof paint comprises the following steps:
1) Sequentially adding an emulsifier, aromatic hydrocarbon oil, naphthenic oil, liquid rubber, liquid rosin resin, deionized water and the like into a batching kettle, stirring for 30min at a stirring speed of 120r/min, and then adding a defoaming agent and stirring for 10min at a stirring speed of 40r/min to prepare the pre-plasticizer composition emulsion for later use.
2) Adding deionized water into a batching kettle, sequentially adding a bactericide, a defoamer, a dispersing agent, an elastic emulsion, alkali liquor, a filler and the like under a stirring state, and stirring at a stirring speed of 120r/min for 30min at a high speed to prepare a prefabricated slurry;
3) Then adding the thickener and stirring for 10min at a stirring speed of 80 r/min;
4) Adding emulsified asphalt and stirring at a stirring speed of 80r/min for 5min under a continuous stirring state, adding plasticizer emulsion and stirring at a rotating speed for 15min, adding cross-linking agent and stirring for 5min, adding thickener and stirring at a stirring speed of 80r/min for 15min, discharging, filtering, metering and filling.
The thickener is diluted by 6 times of deionized water before being added, so that the thickener is favorable for fully dissolving, dispersing and uniformly mixing materials and prevents uneven dispersion from locally agglomerating.
The product performance test data are shown in Table 1.
Example 5:
the invention relates to a single-component water-based non-cured rubber asphalt waterproof paint which is prepared from the following raw materials in parts by weight: 350 parts of emulsified asphalt, 300 parts of elastic emulsion, 80 parts of plasticizer emulsion, 8 parts of alkali liquor, 250 parts of filler, 60 parts of deionized water, 5 parts of defoamer, 5 parts of dispersing agent, 3 parts of bactericide and 8 parts of thickener.
Wherein, the emulsified asphalt adopts anionic emulsified asphalt with the solid content of 50 percent, and the elastic emulsion is anionic styrene-acrylic elastic emulsion with the solid content of more than or equal to 50 percent; the plasticizer emulsion adopts nonionic plasticizer composition emulsion with the solid content of 80 percent; the dispersing agent is a sodium salt dispersing agent of low molecular weight polyacrylic acid, the defoaming agent is a nonionic metal soap defoaming agent, the bactericide is Defr OS CP19, and the mass percentages are as above.
The thickener is a non-associated alkali swelling thickener and an associated hydrophobic alkali swelling thickener which are cooperatively used according to a mass ratio of 1:1, and is respectively used for thickening elastic emulsion and asphalt emulsion, and has a cooperative thickening effect; the main indexes are as follows: the nonvolatile solid content is 25-35% by mass and the pH value is 2.0-3.5.
The filler adopts heavy calcium carbonate with fineness of 600 meshes; the cross-linking agent is a hydrocarbon, and typical physical indexes are as follows: the density is 0.87-0.90 g/cm 3 The aniline point is 13-17 ℃, the surface tension is 28-40 mN/m at 25 ℃, the solubility parameter delta=6.0-9.0, and the distillation range is 150-215 ℃; the alkaline solution adopts KOH solution, and the mass concentration of the alkaline solution is 10-15%.
The preparation method of the single-component water-based non-cured rubber asphalt waterproof paint comprises the following steps:
1) Sequentially adding an emulsifier, aromatic hydrocarbon oil, naphthenic oil, liquid rubber, liquid rosin resin, deionized water and the like into a batching kettle, stirring for 45min at a stirring speed of 120r/min, and then adding a defoaming agent and stirring for 5min at a stirring speed of 40r/min to prepare the pre-plasticizer composition emulsion for later use.
2) Adding deionized water into a batching kettle, sequentially adding a bactericide, a defoamer, a dispersing agent, an elastic emulsion, alkali liquor, a filler and the like under a stirring state, and stirring at a stirring speed of 120r/min for 40min at a high speed to prepare a prefabricated slurry;
3) Then adding the thickener and stirring for 15min at the stirring speed of 100 r/min;
4) Adding emulsified asphalt, stirring at stirring speed of 80r/min for 10min, maintaining the rotation speed, adding plasticizer emulsion, stirring for 15min, adding thickener, stirring at stirring speed of 100 r/min for 20min, discharging, filtering, metering, and packaging.
Further described is the addition of the thickener after dilution with 10 times deionized water prior to addition.
The product performance test data are shown in Table 1.
As shown in the attached drawing, when in construction application, the single-component water-based non-cured rubber asphalt waterproof paint is painted or sprayed on the surface of the structural concrete foundation layer 3, meanwhile, pit defects 4 and concrete cracks 5 on the concrete surface are filled by the single-component water-based non-cured rubber asphalt waterproof paint, a waterproof sealing layer 1 of the single-component water-based non-cured rubber asphalt waterproof paint is formed after curing and film forming, and a self-adhesive waterproof coiled material or a hot-melt waterproof coiled material main waterproof layer 2 is formed on the surface of the single-component water-based non-cured rubber asphalt waterproof paint, so that a 'coil-painting' composite waterproof system is formed.
Example 6
The one-component aqueous non-cured rubber asphalt waterproof paint provided in this comparative example is different from example 4 in that the emulsified asphalt is an anionic emulsified asphalt with a solid content of 60%, the amount is 300 parts, and deionized water is adjusted to 110 parts. The dosage and the preparation method of other materials are kept unchanged.
The product performance test data are shown in Table 2.
Example 7
The single-component water-based non-cured rubber asphalt waterproof paint provided in the comparative example is different from that in the example 6 in that the filler is adjusted to 200 parts, wherein 150 parts of heavy calcium carbonate and 50 parts of talcum powder are used, and the dosage and the preparation method of other materials are kept unchanged.
The product performance test data are shown in Table 2.
Example 8
The single-component water-based non-cured rubber asphalt waterproof paint provided in the comparative example is different from that in the example 6 in that the emulsified asphalt is nonionic emulsified asphalt, and the dosage of other materials and the preparation method are kept unchanged.
The product performance test data are shown in Table 2.
Because the product has no corresponding national standard and industry standard, and the index control is carried out by referring to the internal control technical requirements formulated in JC/T2428-2017 non-cured rubber asphalt waterproof paint of related hot melt product industry standard, the relevant performance test data of examples 1-8 are shown in tables 1 and 2.
Table 1 results of the tests of examples 1 to 5
Figure DEST_PATH_IMAGE001
Table 2 results of the tests of examples (comparative) 6 to 8
Figure 491177DEST_PATH_IMAGE002
TABLE 3 comparative table of internal control Standard Performance and related Hot melt product industry Standard (JC/T2428-2017) differences
Figure DEST_PATH_IMAGE003
As shown in the data of tables 1, 2 and 3, the internal control technical requirements of the product of the invention are compared with that of a hot-melt non-cured rubber asphalt waterproof paint execution standard JC/T2428-2017 non-cured rubber asphalt waterproof paint: the heat resistance is improved by 25 ℃, namely, the heat resistance is required to be improved by 38.5 percent. The stress relaxation is reduced by 5%, namely the requirement is improved by 28.6%, the engineering application performance index indexes such as the breaking elongation, the peeling strength with the self-adhesive coiled material, the water channeling resistance, the water resistance and the like are increased, the advancement of the self-adhesive coiled material is reflected, and the quality requirement of a product is improved.
From the above data, it can be seen that the examples designed by the applicant and the comparative examples have excellent physical properties, and besides being limited by the characteristics of the products and having slightly lower solid content, the other low performance completely meets or is obviously higher than the performance requirements of the related hot melt product industry standard JC/T2428-2017 non-cured rubber asphalt waterproof paint.
The above description is only a few preferred embodiments of the present invention, and any person skilled in the art may make modifications to the above described embodiments or make modifications to the same. Accordingly, the corresponding simple modifications or equivalent changes according to the technical scheme of the present invention fall within the scope of the claimed invention.

Claims (5)

1. A single-component water-based non-cured rubber asphalt waterproof paint is characterized in that: the material consists of the following raw materials in parts by weight: 350-450 parts of emulsified asphalt, 200-300 parts of elastic emulsion, 40-80 parts of plasticizer emulsion, 5-8 parts of alkali liquor, 200-300 parts of filler, 30-60 parts of deionized water, 2-5 parts of defoamer, 1-5 parts of dispersing agent, 1-3 parts of bactericide, 4-8 parts of thickener and 0-3 parts of cross-linking agent;
wherein, the emulsified asphalt adopts anionic emulsified asphalt or nonionic emulsified asphalt with the solid content of 50-60 percent, and the elastic emulsion is anionic styrene-acrylic elastic emulsion with the solid content of more than or equal to 50 percent; the dispersing agent is a sodium salt dispersing agent of low molecular weight polyacrylic acid, the defoaming agent is a nonionic metal soap defoaming agent, the bactericide is Defros CP19, the filling material can be but is not limited to heavy calcium carbonate, and the crosslinking agent is a hydrocarbon;
the plasticizer emulsion adopts nonionic plasticizer composition emulsion with the solid content of 80-85 percent;
the nonionic plasticizer composition emulsion comprises the following raw materials in parts by weight: 20-40 parts of aromatic oil, 30-45 parts of naphthenic oil, 5-8 parts of liquid rosin resin, 0-5 parts of polyisobutene liquid rubber, 4-6 parts of emulsifier and 15-20 parts of deionized water.
2. The one-component aqueous non-curable rubber asphalt waterproof paint according to claim 1, characterized in that: the thickener is thixotropic thickener, and specifically, the non-associative alkali swelling thickener and the associative hydrophobic alkali swelling thickener are used together according to the mass ratio of 1:1-1:2.
3. The method for preparing the one-component water-based non-cured rubber asphalt waterproof paint according to any one of claims 1 to 2, which is characterized by comprising the following steps:
1) Sequentially adding an emulsifier, aromatic oil, naphthenic oil, liquid rubber, liquid rosin resin and deionized water into a batching kettle, stirring for 30-45 min at a stirring speed of 120r/min, and then adding a defoaming agent and stirring for 5-10 min at a stirring speed of 40-60 r/min to prepare a pre-made plasticizer composition emulsion for later use;
2) Adding deionized water into a batching kettle, then sequentially adding a bactericide, a defoamer, a dispersing agent, an elastic emulsion, alkali liquor and a filling material in a stirring state, and stirring at a stirring speed of 120r/min for 30-40 min to prepare a prefabricated slurry;
3) Then adding a thickening agent and stirring for 5-15 min at a stirring speed of 80-100 r/min;
4) Adding emulsified asphalt and stirring at a stirring speed of 80r/min for 5-10 min under a continuous stirring state, adding plasticizer emulsion and stirring at a rotating speed for 10-20 min, adding cross-linking agent and stirring for 5-10 min, adding thickener and stirring at a stirring speed of 80-100 r/min for 10-20 min, discharging, filtering, metering and filling.
4. The method for preparing the one-component water-based non-cured rubber asphalt waterproof paint according to claim 3, which is characterized in that:
the elastic emulsion, the filling material, the emulsified asphalt and the plasticizer composition emulsion are slowly added in a stirring state, and the thickening agent is diluted by 5-10 times of deionized water and then added, so that the materials are fully dissolved, dispersed and uniformly mixed, and uneven dispersion local agglomeration is prevented.
5. Use of a one-component aqueous non-curable rubberized asphalt waterproofing paint according to any one of claims 1 to 2, characterized by comprising the following process:
when the waterproof coating is applied in construction, the single-component water-based non-cured rubber asphalt waterproof coating is painted or sprayed on the surface of a structural concrete foundation layer (3), meanwhile, pit defects (4) and concrete cracks (5) on the concrete surface are filled with the single-component water-based non-cured rubber asphalt waterproof coating, a waterproof sealing layer (1) of the single-component water-based non-cured rubber asphalt waterproof coating is formed after curing and film forming, and a self-adhesive waterproof coiled material or a main waterproof layer (2) of the hot-melt waterproof coiled material is formed on the surface of the waterproof coating to form a 'coil-painted' composite waterproof system.
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