CN115572544A - Single-component water-based non-cured rubber asphalt waterproof coating and preparation method and application thereof - Google Patents

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

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CN115572544A
CN115572544A CN202211287156.3A CN202211287156A CN115572544A CN 115572544 A CN115572544 A CN 115572544A CN 202211287156 A CN202211287156 A CN 202211287156A CN 115572544 A CN115572544 A CN 115572544A
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parts
stirring
emulsion
waterproof coating
cured rubber
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CN115572544B (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
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    • C08L2201/08—Stabilised against heat, light or radiation or oxydation

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Abstract

The invention relates to a single-component water-based non-cured rubber asphalt waterproof coating, and a preparation method and application thereof. The technical scheme is as follows: the composition is characterized by comprising 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 dispersant, 1-3 parts of bactericide, 4-8 parts of thickener and 0-3 parts of cross-linking agent. The invention integrates the advantages of the conventional hot-melt non-cured rubber asphalt coating and the water-based asphalt waterproof coating, and has the beneficial effects that: the water emulsion type design and the environment are friendly; single component packaging and convenient use; the elongation is high, and the adaptability of the base layer is strong; the creep property and the self-healing property are strong, and the cracks are automatically filled under the action of pressure and the like; the adhesive strength is high, and the adhesive can form a high-efficiency roll coating composite waterproof system with a self-adhesive coiled material or a hot-melt coiled material.

Description

Single-component water-based non-cured rubber asphalt waterproof coating 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 coating and the application technology thereof are introduced into China from Korea at the beginning of the century, and the material consists of high-quality petroleum asphalt, a rubber modifier, a special additive and the like, has the characteristics of never curing and the function of a waterproof coating, and is named as the non-cured rubber asphalt waterproof coating. The non-cured rubber asphalt waterproof paint belongs to a solvent-free non-reactive non-film-forming single-component creep-deformation paint, and has good bonding capability with base materials such as metal, nonmetal, concrete and the like. The waterproof coating has the characteristics of no need of maintenance, one-time construction, capability of achieving construction thickness, excellent composite effect with the asphalt coiled material and the like, thereby being widely accepted in the industry and being widely applied to waterproofing of municipal works, subway tunnels, dams, pools, road bridges, roofs, bathroom rooms, underground parts and the like.
However, from the overall situation in China, the product performance is still greatly different from that of the products at abroad, such as high heat resistance and low viscosity, the spraying construction can be performed only by heating to 150-200 ℃, the composite material slides after being compounded with a coiled material at a vertical surface part, the smoke volatilization is large in the production and spraying processes, the gun is easy to block during the spraying construction, the viscoelastic paste is not durable, and the like. This has also been confirmed in recent years by several published literature reports, such as:
in document 1, the chinese patent number of the present company is 202111457486.8, and the patent name is "a high heat-resistant non-cured rubber asphalt waterproof coating and a preparation method", and the technical scheme thereof is that the coating comprises 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 additive, 40-45 parts of compatilizer and 45-50 parts of filler. The invention solves the contradiction between heat resistance and non-solidified state, and improves the heat resistance of the product from 65 ℃ to over 90 ℃ on the basis of keeping viscous 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 method overcomes the contradiction between the composite slippage resistance and the extensibility of the coiled material, obviously improves the composite slippage resistance of the coiled material on the premise of keeping higher extensibility, and solves the difficult problem of composite construction of a vertical face part and the coiled material. However, although the invention solves many problems in practical application, the problems of low on-site heating and melting efficiency, high energy consumption, on-site safety, smoke volatilization and the like still exist during construction, and the invention is not beneficial to the environmental protection requirement of a construction site.
Document 2, chinese patent No. 201610831231.6, whose patent name is "an anionic water-based non-cured rubber asphalt waterproof coating and its preparation method", its technical scheme is: (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 an inorganic salt solution with the concentration of 10-30% to obtain a component B; and (3) mixing the component A and the component B according to the mass ratio of 5-15:1, spraying and mixing by a spray gun to obtain an anionic waterborne non-cured rubber modified asphalt waterproof coating; wherein the anion rubber modified asphalt emulsion is prepared from the following components in a mass ratio of 25-35:15-25:3-6:5-8:0.1-0.3:0.2-0.4:35-50 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. It has the problems that: although the product disclosed in the document 2 solves the problems of low heating and melting efficiency, high energy consumption, on-site safety, smoke volatilization and the like existing in the document 1 through an aqueous design; the double-component paint meets the environmental protection requirement under the double-carbon policy, but the double-component design is adopted, so that the paint is used after being proportioned according to the proportion during construction and application, and the paint is only suitable for spraying construction and is not suitable for manual painting operation of special parts with limited operation space and the like.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the single-component water-based non-cured rubber asphalt waterproof coating, the preparation method and the application thereof, so that the single-component water-based non-cured rubber asphalt waterproof coating integrates various performances such as environmental friendliness, visco-elastic paste, self-healing property, high heat resistance, high adhesion and the like, has the technical characteristics of cold construction, no sagging in vertical wall construction, high construction efficiency and the like, improves the adaptability, construction convenience and reliability of a base layer, and widens the application field.
The invention provides a single-component water-based non-cured rubber asphalt waterproof coating, which adopts the technical scheme that: the composition is characterized by comprising 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 defoaming agent, 1-5 parts of dispersing agent, 1-3 parts of bactericide, 4-8 parts of thickening agent 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%, and the elastic emulsion is anionic styrene-acrylic elastic emulsion with the solid content of more than or equal to 50%; 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 Defross CP19, the filling material can adopt but is not limited to heavy calcium carbonate, and the crosslinking agent is a hydrocarbon according to the mass percentage.
Preferably, the plasticizer emulsion is a nonionic plasticizer composition emulsion having a solid content of 80 to 85%.
Preferably, the nonionic plasticizer composition emulsion is composed of the following raw materials in parts by weight: 20 to 40 portions of aromatic oil, 30 to 45 portions of naphthenic oil, 5 to 8 portions of liquid rosin resin, 0 to 5 portions of polyisobutylene liquid rubber, 4 to 6 portions of emulsifier and 15 to 20 portions 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 in a ratio of 1.
The preparation method of the single-component water-based non-cured rubber asphalt waterproof coating 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 at a stirring speed of 40-60 r/min, and stirring for 5-10 min to prepare a prefabricated plasticizer composition emulsion for later use;
2) Adding deionized water into a batching kettle, then sequentially adding a bactericide, a defoaming agent, a dispersing agent, an elastic emulsion, alkali liquor and a filler under a stirring state, and stirring at a high 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) And adding emulsified asphalt under a continuous stirring state, stirring for 5-10 min at a stirring speed of 80r/min, keeping the rotating speed, adding the plasticizer emulsion, stirring for 10-20 min, adding the cross-linking agent, stirring for 5-10 min, finally adding the thickening agent, stirring for 10-20 min at a stirring speed of 80-100 r/min, discharging, filtering, metering and filling.
Wherein, the elastic emulsion, the filling material, the emulsified asphalt and the plasticizer composite emulsion are added slowly under the stirring state, and the thickening agent is added after being diluted by 5 to 10 times of deionized water, so as to be beneficial to fully dissolving, dispersing and uniformly mixing the materials and preventing the local agglomeration due to uneven dispersion.
The application of the single-component water-based non-cured rubber asphalt waterproof coating provided by the invention comprises the following steps:
when in construction application, the single-component aqueous non-cured rubber asphalt waterproof coating is brushed or sprayed on the surface of the structural concrete foundation layer, and meanwhile, the surface pits and crack defects of the concrete are filled with the single-component aqueous non-cured rubber asphalt waterproof coating; after the curing and film forming, a self-adhesive waterproof coiled material or a hot-melt waterproof coiled material main body waterproof layer is constructed on the surface of the cured and film-formed waterproof coiled material or hot-melt waterproof coiled material main body waterproof layer, and the self-adhesive waterproof coiled material or hot-melt waterproof coiled material main body waterproof layer and the waterproof coiled material main body layer form a roll coating composite waterproof system.
Compared with the prior art, the invention has the following beneficial effects:
the invention integrates the advantages of the hot-melt non-curing rubber asphalt coating and the water-based asphalt waterproof coating, 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 viscous paste; the contradiction between the composite slippage resistance and the extensibility of the coil is overcome, and the composite slippage resistance of the coil is obviously improved on the premise of keeping higher extensibility; the coordination balance among the bonding performance, stress relaxation, viscosity retention and peeling strength is realized, and the viscosity retention and the peeling strength among the coiled materials are greatly improved on the premise of ensuring cohesive failure bonding and smaller stress relaxation; the product integrates various performances such as environmental friendliness, visco-elastic paste, self-healing property, high heat resistance, high adhesion and the like, improves the construction convenience and reliability, and widens the application range.
Drawings
FIG. 1 is a schematic sectional view of the construction of a "coil coating" composite waterproofing system in the application of the product construction of the present invention;
in the upper diagram: the waterproof coating comprises a single-component water-based non-cured rubber asphalt waterproof coating waterproof sealing layer 1, a self-adhesive waterproof coiled material or hot-melt waterproof coiled material main waterproof layer 2, a structural concrete foundation layer 3, concrete surface pit defects 4 and concrete cracks 5.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it should be understood that they are presented herein only to illustrate and explain the present invention and not to limit the present invention. Examples 1 to 4 are specific embodiments of the one-component water-based non-curable rubber asphalt waterproof coating material of the present invention, and examples 5 to 8 are comparative examples designed by the applicant:
example 1:
the single-component water-based non-cured rubber asphalt waterproof coating provided by the invention comprises 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 defoaming agent, 1 part of dispersing agent, 2 parts of bactericide, 5 parts of thickening agent and 2 parts of crosslinking 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 components are mixed according to the mass percentage;
the thickening agent is a non-associative alkali swelling thickening agent and an associative hydrophobic alkali swelling thickening agent, is cooperatively used according to the mass ratio of 1; the main indexes are as follows: the non-volatile solid content is 25-35% by mass, and the pH value is 2.0-3.5;
the filler is heavy calcium carbonate with the fineness of 400 meshes; the cross-linking agent is a hydrocarbon, and typical physical property indexes of the cross-linking agent are as follows: the density is 0.87-0.90 g/cm 3 The aniline point is 13-17 ℃, the surface tension at 25 ℃ is 28-40 mN/m, the solubility parameter delta = 6.0-9.0, and the distillation range is 150-215 ℃;
the alkali liquor is KOH solution, and the mass concentration of the alkali liquor is 10-15%.
The preparation method of the single-component water-based non-cured rubber asphalt waterproof coating comprises the following steps:
1) And sequentially adding an emulsifier, aromatic 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 at a stirring speed of 60r/min, and stirring for 10min to prepare the preformed plasticizer composition emulsion for later use.
2) Adding deionized water into a batching kettle, then sequentially adding bactericide, defoamer, dispersant, elastic emulsion, alkali liquor, filler and the like under the stirring state, and stirring at a high speed of 120r/min for 30min to prepare prefabricated 'slurry';
3) Then adding a thickening agent and stirring for 5min at a stirring speed of 80 r/min;
4) And adding emulsified asphalt under a continuous stirring state, stirring for 5min at a stirring speed of 80r/min, keeping the rotating speed, adding the plasticizer emulsion, stirring for 20min, adding the cross-linking agent, stirring for 5min, adding the thickening agent, stirring for 10min at a stirring speed of 80r/min, discharging, filtering, metering and filling.
The elastic emulsion, the filler, the emulsified asphalt and the plasticizer composition emulsion are added slowly under stirring, and the thickening agent is added after being diluted by 5 times of deionized water before being added, so that the materials are dissolved, dispersed and mixed uniformly, and the local agglomeration caused by nonuniform dispersion is prevented.
The product performance test data is shown in table 1.
As shown in the attached figure 1, during construction and application, a single-component water-based non-cured rubber asphalt waterproof coating is coated or sprayed on the surface of a structural concrete base layer 3, meanwhile, pit defects 4 and concrete cracks 5 on the surface of concrete are filled with the single-component water-based non-cured rubber asphalt waterproof coating, a single-component water-based non-cured rubber asphalt waterproof coating waterproof sealing layer 1 is formed after curing and film forming, a self-adhesive waterproof coiled material or a hot-melt waterproof coiled material main body is constructed on the surface of the single-component water-based non-cured rubber asphalt waterproof coating waterproof sealing layer 1 to form a self-adhesive waterproof coiled material or a hot-melt waterproof coiled material main waterproof layer 2, and a 'coil coating' composite waterproof system is formed.
Example 2:
the single-component water-based non-cured rubber asphalt waterproof coating provided by the invention is composed of 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 defoaming agent, 3 parts of dispersing agent, 1 part of bactericide, 6 parts of thickening agent and 3 parts of crosslinking 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, and the bactericide is Defros CP19 in percentage by mass.
The thickening agent is a non-associative alkali swelling thickening agent and an associative hydrophobic alkali swelling thickening agent, is cooperatively used according to the mass ratio of 1; the main indexes are as follows: the non-volatile solid content is 25-35% by mass, and the pH value is 2.0-3.5.
The filling material adopts heavy calcium carbonate with the fineness of 600 meshes; the cross-linking agent is a hydrocarbon, and typical physical indexes of the cross-linking agent are as follows: the density is 0.87-0.90 g/cm 3 The aniline point is 13-17 ℃, the surface tension at 25 ℃ is 28-40 mN/m, the solubility parameter delta = 6.0-9.0, and the distillation range is 150-215 ℃; the alkali liquor is KOH solution, and the mass concentration of the alkali liquor is 10-15%.
The preparation method of the single-component water-based non-cured rubber asphalt waterproof coating comprises the following steps:
1) And sequentially adding an emulsifier, aromatic 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 at a stirring speed of 60r/min, and stirring for 10min to prepare the preformed plasticizer composition emulsion for later use.
2) Adding deionized water into a batching kettle, then sequentially adding bactericide, defoamer, dispersant, elastic emulsion, alkali liquor, filler and the like under the stirring state, and stirring at a high speed of 120r/min for 40min to prepare prefabricated 'slurry';
3) Then adding a thickening agent and stirring for 5min at the stirring speed of 100 r/min;
4) And adding emulsified asphalt under the continuous stirring state, stirring for 5min at a stirring speed of 80r/min, keeping the rotating speed, adding the plasticizer emulsion, stirring for 20min, adding the cross-linking agent, stirring for 10min, adding the thickening agent, stirring for 20min at a stirring speed of 100 r/min, discharging, filtering, metering and filling.
The elastic emulsion, the filler, the emulsified asphalt and the plasticizer composition emulsion are added slowly under stirring, and the thickening agent is added after being diluted by 8 times of deionized water before being added, so that the materials are dissolved, dispersed and mixed uniformly, and the local agglomeration caused by nonuniform dispersion is prevented.
The product performance test data is shown in table 1.
Example 3:
the single-component water-based non-cured rubber asphalt waterproof coating provided by the invention is composed of 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 defoaming agent, 2 parts of dispersing agent, 2.5 parts of bactericide, 4 parts of thickening agent 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, and the bactericide is Defros CP19 in percentage by mass.
The thickener is a non-associative alkali swelling thickener and an associative hydrophobic alkali swelling thickener, is cooperatively used according to the mass ratio of 1.5, is respectively used for thickening elastic emulsion and asphalt emulsion, and has a synergistic thickening effect; the main indexes are as follows: the non-volatile solid content is 25-35% by mass, and the pH value is 2.0-3.5.
The filling material adopts heavy calcium carbonate with the fineness of 800 meshes; the cross-linking agent is a hydrocarbon, and typical physical indexes of the cross-linking agent are as follows: the density is 0.87-0.90 g/cm 3 The aniline point is 13-17 ℃, the surface tension at 25 ℃ is 28-40 mN/m, the solubility parameter delta = 6.0-9.0, and the distillation range is 150-215 ℃; the alkali liquor is KOH solution, and the mass concentration of the alkali liquor is 10-15%.
The preparation method of the single-component water-based non-cured rubber asphalt waterproof coating comprises the following steps:
1) And sequentially adding an emulsifier, aromatic 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, adding a defoaming agent at a stirring speed of 60r/min, and stirring for 5min to prepare the preformed plasticizer composition emulsion for later use.
2) Adding deionized water into a batching kettle, then sequentially adding bactericide, defoamer, dispersant, elastic emulsion, alkali liquor, filler and the like under the stirring state, and stirring at a high speed of 120r/min for 30min to prepare prefabricated slurry;
3) Then adding a thickening agent and stirring for 10min at a stirring speed of 80 r/min;
4) And adding emulsified asphalt under a continuous stirring state, stirring for 5min at a stirring speed of 80r/min, keeping the rotating speed, adding the plasticizer emulsion, stirring for 15min, adding the cross-linking agent, stirring for 5min, adding the thickening agent, stirring for 10min at a stirring speed of 80r/min, discharging, filtering, metering and filling.
Further, the thickening agent is added after being diluted by 6 times of deionized water before being added, so that the materials are fully dissolved, dispersed and uniformly mixed, and the local agglomeration due to nonuniform dispersion is prevented.
The product performance test data is shown in table 1.
Example 4:
the single-component water-based non-cured rubber asphalt waterproof coating provided by the invention is composed of 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 defoaming agent, 2 parts of dispersing agent, 2 parts of bactericide, 4 parts of thickening agent and 1 part of crosslinking 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, and the bactericide is Defros CP19 in percentage by mass.
The thickener is a non-associative alkali swelling thickener and an associative hydrophobic alkali swelling thickener, is cooperatively used according to the mass ratio of 1; the main indexes are as follows: the non-volatile solid content is 25-35% by mass percent, and the pH value is 2.0-3.5.
The filler is heavy calcium carbonate with the fineness of 600 meshes; the cross-linking agent is a hydrocarbon, and typical physical property indexes of the cross-linking agent are as follows: density ofIs 0.87 to 0.90g/cm 3 The aniline point is 13-17 ℃, the surface tension at 25 ℃ is 28-40 mN/m, the solubility parameter delta = 6.0-9.0, and the distillation range is 150-215 ℃; the alkali liquor is KOH solution, and the mass concentration of the alkali liquor is 10-15%.
The preparation method of the single-component water-based non-cured rubber asphalt waterproof coating comprises the following steps:
1) And sequentially adding an emulsifier, aromatic 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 at a stirring speed of 40r/min, and stirring for 10min to prepare the prefabricated plasticizer composition emulsion for later use.
2) Adding deionized water into a batching kettle, then sequentially adding bactericide, defoamer, dispersant, elastic emulsion, alkali liquor, filler and the like under the stirring state, and stirring at a high speed of 120r/min for 30min to prepare prefabricated 'slurry';
3) Then adding the thickening agent and stirring for 10min at the stirring speed of 80 r/min;
4) And adding emulsified asphalt under a continuous stirring state, stirring for 5min at a stirring speed of 80r/min, keeping the rotating speed, adding the plasticizer emulsion, stirring for 15min, adding the cross-linking agent, stirring for 5min, adding the thickening agent, stirring for 15min at a stirring speed of 80r/min, discharging, filtering, metering and filling.
Further, the thickening agent is added after being diluted by 6 times of deionized water before being added, so that the materials are fully dissolved, dispersed and uniformly mixed, and the local agglomeration due to nonuniform dispersion is prevented.
The product performance test data is shown in table 1.
Example 5:
the single-component water-based non-cured rubber asphalt waterproof coating provided by the invention is composed of 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 defoaming agent, 5 parts of dispersing agent, 3 parts of bactericide and 8 parts of thickening 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 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, and the bactericide is Defros CP19 in percentage by mass.
The thickening agent is a non-associative alkali swelling thickening agent and an associative hydrophobic alkali swelling thickening agent, is cooperatively used according to the mass ratio of 1; the main indexes are as follows: the non-volatile solid content is 25-35% by mass, and the pH value is 2.0-3.5.
The filler is heavy calcium carbonate with the fineness of 600 meshes; the cross-linking agent is a hydrocarbon, and typical physical property indexes of the cross-linking agent are as follows: the density is 0.87-0.90 g/cm 3 The aniline point is 13-17 ℃, the surface tension at 25 ℃ is 28-40 mN/m, the solubility parameter delta = 6.0-9.0, and the distillation range is 150-215 ℃; the alkali liquor is KOH solution, and the mass concentration of the alkali liquor is 10-15%.
The preparation method of the single-component water-based non-cured rubber asphalt waterproof coating comprises the following steps:
1) And sequentially adding an emulsifier, aromatic 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, adding a defoaming agent at a stirring speed of 40r/min, and stirring for 5min to prepare the prefabricated plasticizer composition emulsion for later use.
2) Adding deionized water into a batching kettle, then sequentially adding bactericide, defoamer, dispersant, elastic emulsion, alkali liquor, filler and the like under the stirring state, and stirring at a high speed of 120r/min for 40min to prepare prefabricated 'slurry';
3) Then adding a thickening agent and stirring for 15min at the stirring speed of 100 r/min;
4) Adding emulsified asphalt under the state of continuous stirring, stirring for 10min at the stirring speed of 80r/min, keeping the rotating speed, adding the plasticizer emulsion, stirring for 15min, finally adding the thickening agent, stirring for 20min at the stirring speed of 100 r/min, discharging, filtering, metering and filling.
Further illustrated is the addition of a 10-fold dilution of deionized water prior to the addition of the thickener.
The product performance test data is shown in table 1.
As shown in the attached drawing, during construction and application, the single-component water-based non-cured rubber asphalt waterproof coating is coated or sprayed on the surface of a structural concrete foundation layer 3, meanwhile, pit defects 4 and concrete cracks 5 on the surface of concrete are filled with the single-component water-based non-cured rubber asphalt waterproof coating, a single-component water-based non-cured rubber asphalt waterproof coating waterproof sealing layer 1 is formed after curing and film forming, a self-adhesive waterproof coiled material or a hot-melt waterproof coiled material main body is constructed on the surface of the 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 is formed, and a 'coil coating' composite waterproof system is formed.
Example 6
The difference between the single-component aqueous non-cured rubber asphalt waterproof coating provided in this comparative example and example 4 is that the emulsified asphalt is anionic emulsified asphalt with a solid content of 60%, the amount of the anionic emulsified asphalt is 300 parts, and the deionized water is adjusted to 110 parts. The dosage of other materials and the preparation method are kept unchanged.
The product performance test data is shown in table 2.
Example 7
The difference between the single-component aqueous non-cured rubber asphalt waterproof coating provided in this comparative example and example 6 is that the filler is adjusted to 200 parts, wherein 150 parts of heavy calcium carbonate and 50 parts of talcum powder are contained, and the amounts of other materials and the preparation method are kept unchanged.
The product performance test data is shown in table 2.
Example 8
The difference between the single-component aqueous non-cured rubber asphalt waterproof coating provided in this comparative example and example 6 is that the emulsified asphalt is nonionic emulsified asphalt, and the amounts of other materials and the preparation method are all kept unchanged.
The product performance test data is shown in table 2.
Because the product has no corresponding national standard and industrial standard, the index control is carried out by referring to the internal control technical requirements formulated by related hot-melt product industrial standard JC/T2428-2017 non-cured rubber asphalt waterproof coating, and the related performance test data of the examples 1-8 are shown in tables 1 and 2.
TABLE 1 test results of examples 1 to 5
Figure DEST_PATH_IMAGE001
TABLE 2 examination results of examples (comparative examples) 6 to 8
Figure 491177DEST_PATH_IMAGE002
TABLE 3 comparison table of difference between internal control standard performance and related hot-melt product industry standard (JC/T2428-2017)
Figure DEST_PATH_IMAGE003
As shown in the data in tables 1, 2 and 3, the internal control technical requirement of the product of the present invention is compared with the execution standard JC/T2428-2017 non-cured rubber asphalt waterproof coating of the hot-melt non-cured rubber asphalt waterproof coating: the heat resistance is improved by 25 ℃, namely, the requirement is improved by 38.5 percent. The stress relaxation is reduced by 5 percent, namely the requirement is improved by 28.6 percent, the indexes of engineering application performance indexes such as breaking elongation, peeling strength with self-adhesive coiled materials, water channeling resistance, water resistance and the like are increased, the advancement is reflected, and the quality requirement of products is improved.
From the data, the examples designed by the applicant and the comparative examples have excellent physical properties, and except that the solid content is slightly low due to the restriction of product characteristics, other low properties completely meet or are obviously higher than the performance requirements of related hot melt type product industry standard JC/T2428-2017 non-cured rubber asphalt waterproof coating.
The above description is only a few of the preferred embodiments of the present invention, and any person skilled in the art may modify the above-described embodiments or modify them into equivalent ones. Therefore, the technical solution according to the present invention is subject to corresponding simple modifications or equivalent changes, as far as the scope of the present invention is claimed.

Claims (7)

1. A single-component water-based non-cured rubber asphalt waterproof coating is characterized in that: the composition is characterized by comprising 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 dispersant, 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%, and the elastic emulsion is anionic styrene-acrylic elastic emulsion with the solid content of more than or equal to 50%; 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 Defross CP19, the filling material can adopt but is not limited to heavy calcium carbonate, and the crosslinking agent is a hydrocarbon according to the mass percentage.
2. The one-component water-based non-cured rubber asphalt waterproof coating material as claimed in claim 1, which is characterized in that: the plasticizer emulsion adopts nonionic plasticizer composition emulsion with the solid content of 80-85%.
3. The one-component water-based non-cured rubber asphalt waterproof coating material as claimed in claim 2, which is characterized in that: the nonionic plasticizer composition emulsion is composed of the following raw materials in parts by weight: 20 to 40 portions of aromatic oil, 30 to 45 portions of naphthenic oil, 5 to 8 portions of liquid rosin resin, 0 to 5 portions of polyisobutylene liquid rubber, 4 to 6 portions of emulsifier and 15 to 20 portions of deionized water.
4. The one-component water-based non-cured rubber asphalt waterproof coating material as claimed in claim 1, which is characterized in that: the thickening agent is a thixotropic thickening agent, and specifically, the non-associative alkali swelling thickening agent and the associative hydrophobic alkali swelling thickening agent are used in a matching manner according to the mass ratio of 1.
5. The preparation method of the one-component water-based non-cured rubber asphalt waterproof coating material according to any one of claims 1 to 4, which is characterized by comprising the following steps of:
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 at a stirring speed of 40-60 r/min, and stirring for 5-10 min to prepare a prefabricated plasticizer composition emulsion for later use;
2) Adding deionized water into a batching kettle, then sequentially adding a bactericide, a defoaming agent, a dispersing agent, an elastic emulsion, alkali liquor and a filling material under a stirring state, and stirring at a high speed of 120r/min for 30-40 min to prepare prefabricated slurry;
3) Then adding a thickening agent and stirring for 5-15 min at a stirring speed of 80-100 r/min;
4) And adding emulsified asphalt under the continuous stirring state, stirring for 5-10 min at the stirring speed of 80r/min, keeping the rotating speed, adding the plasticizer emulsion, stirring for 10-20 min, adding the cross-linking agent, stirring for 5-10 min, finally adding the thickening agent, stirring for 10-20 min at the stirring speed of 80-100 r/min, discharging, filtering, metering and filling.
6. The preparation method of the one-component water-based non-cured rubber asphalt waterproof coating material as claimed in claim 5, wherein the preparation method is characterized in that
The elastic emulsion, the filling material, the emulsified asphalt and the plasticizer composition emulsion are preferably slowly added under the stirring state, and the thickening agent is preferably added after being diluted by 5-10 times of deionized water, so that the materials are fully dissolved, dispersed and uniformly mixed, and the local agglomeration caused by nonuniform dispersion is prevented.
7. The use of the one-component aqueous non-curing rubber asphalt waterproof coating material according to any one of claims 1 to 4, which is characterized by comprising the following processes:
when the waterproof coating is constructed and applied, the single-component water-based non-cured rubber asphalt waterproof coating is coated or sprayed on the surface of a structural concrete foundation layer (3), meanwhile, pit defects (4) and concrete cracks (5) on the surface of concrete are filled with the single-component water-based non-cured rubber asphalt waterproof coating, a single-component water-based non-cured rubber asphalt waterproof coating waterproof sealing layer (1) is formed after curing and film forming, a self-adhesive waterproof coiled material or a hot-melt waterproof coiled material main body is constructed on the surface of the waterproof coating to form a self-adhesive waterproof coiled material or a hot-melt waterproof coiled material main waterproof layer (2), and a roll coating composite waterproof system is formed.
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