CN108165174B - Spraying rapid-hardening rubber asphalt waterproof coating and preparation and construction method thereof - Google Patents
Spraying rapid-hardening rubber asphalt waterproof coating and preparation and construction method thereof Download PDFInfo
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- CN108165174B CN108165174B CN201711183382.6A CN201711183382A CN108165174B CN 108165174 B CN108165174 B CN 108165174B CN 201711183382 A CN201711183382 A CN 201711183382A CN 108165174 B CN108165174 B CN 108165174B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D195/00—Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
- C09D195/005—Aqueous compositions, e.g. emulsions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2502/00—Acrylic polymers
- B05D2502/005—Acrylic polymers modified
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2530/00—Rubber or the like
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2313/00—Characterised by the use of rubbers containing carboxyl groups
- C08J2313/02—Latex
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08J2323/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08J2323/22—Copolymers of isobutene; butyl rubber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention provides a spraying quick-setting rubber asphalt waterproof coating and a preparation and construction method thereof. The spraying quick-setting rubber asphalt waterproof coating comprises a component A and a component B; the component A comprises anionic emulsified asphalt and modified polymer latex, the modified polymer latex is obtained by reacting polymer latex containing carboxyl and a cross-linking agent capable of reacting with the carboxyl, the component B comprises a coagulant, and based on the addition of the modified polymer latex in the component A, the prepared spray quick-setting rubber asphalt waterproof paint has the characteristics of high tensile strength and good heat resistance, and is suitable for being used in high-temperature construction environments and low-temperature environments.
Description
Technical Field
The invention relates to the technical field of materials, in particular to a spraying quick-setting rubber asphalt waterproof coating and a preparation and construction method thereof.
Background
In the field of rubber asphalt waterproof coatings at present, the waterproof coating can be prepared from various raw materials, and common waterproof coatings are prepared from emulsified asphalt and rubber latex. Although the existing waterproof coating prepared from emulsified asphalt and rubber latex has certain waterproof performance and can play a certain waterproof role, the waterproof coating has low tensile strength and poor heat resistance, and the surface of the waterproof coating is sticky and easy to stick feet after construction under high-temperature construction conditions, so that the waterproof coating is damaged and the constructors are inconvenient to walk.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a waterproof coating, which is used for completely or partially solving the technical problem.
In order to solve the problems, the invention discloses a spraying quick-setting rubber asphalt waterproof coating, which comprises a component A and a component B; the component A comprises anionic emulsified asphalt and modified polymer latex, the modified polymer latex is obtained by reacting polymer latex containing carboxyl and a cross-linking agent capable of reacting with the carboxyl, and the component B comprises a coagulant.
Optionally, in the component A, the weight part of the anionic emulsified asphalt is 30-90, and the weight part of the modified polymer latex is 10.1-90;
10.1-90 parts by weight of the modified polymer latex, wherein the part by weight of the polymer latex containing carboxyl is 10-70 parts by weight, and the part by weight of the cross-linking agent is 0.1-20 parts by weight;
the concentration of the coagulant in the component B is 3-20%;
the weight part ratio of the component A to the component B is 2:1-15: 1.
Optionally, the tensile strength of the sprayed rapid-hardening rubber asphalt waterproof coating reaches more than 1.2MPa, the heat resistance reaches more than 140 ℃, and the low-temperature flexibility is as low as below-25 ℃.
Optionally, the reaction temperature of the polymer latex containing carboxyl and the cross-linking agent is 20-25 ℃.
Optionally, the polymer latex containing carboxyl groups includes one or more of a rubber latex containing carboxyl groups and an acrylic latex.
Optionally, the rubber latex containing carboxyl groups comprises one or more of carboxyl chloroprene rubber latex, carboxyl styrene-butadiene rubber latex, carboxyl nitrile rubber latex, carboxyl butyl rubber latex, carboxyl polyisoprene latex, carboxyl butadiene rubber latex and carboxyl ethylene propylene diene monomer rubber latex;
the acrylic latex comprises one or more of acrylic latex, styrene-acrylic latex, vinyl acetate-acrylic latex and acrylate latex.
Optionally, the crosslinking agent comprises one or more of a silane coupling agent, a metal oxide, sulfur, a peroxide, an amine crosslinking agent, an epoxy compound, and an isocyanate.
Optionally, the anionic emulsified asphalt is anionic hard emulsified asphalt, and the penetration degree of the anionic emulsified asphalt is 30-50.
Optionally, the A component further comprises one or more of an aqueous auxiliary agent and a flame retardant.
Optionally, the coagulant is an inorganic salt coagulant.
The embodiment of the invention also discloses a preparation and construction method of the spray rapid-hardening rubber asphalt waterproof coating, which comprises the following steps:
step 1: mixing polymer latex containing carboxyl and a cross-linking agent capable of reacting with the carboxyl at the temperature of 20-25 ℃ to react to obtain modified polymer latex;
step 2: mixing the anionic emulsified asphalt and the modified polymer latex, and stirring for reaction to obtain a component A;
and step 3: during construction, the component A and the component B are sprayed out simultaneously by using construction equipment, the component A and the component B are sprayed on a construction base surface after being mixed in a crossed mode outside the construction equipment to form a continuous waterproof coating layer, and the component B comprises an accelerant.
Compared with the prior art, the invention has the following advantages:
the embodiment of the invention provides a spraying quick-setting rubber asphalt waterproof coating, which comprises a component A and a component B, wherein the component A comprises anionic emulsified asphalt and modified polymer latex, the modified polymer latex is obtained by reacting polymer latex containing carboxyl and a cross-linking agent capable of reacting with the carboxyl, and the component B comprises a coagulant.
Drawings
FIG. 1 is a flow chart of a preparation and construction method of a spray rapid-hardening rubber asphalt waterproof coating according to an embodiment of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The following will describe the implementation procedures of the materials and methods of the present invention in detail by examples.
The invention provides a spraying quick-setting rubber asphalt waterproof coating, which comprises a component A and a component B;
wherein, the component A comprises anionic emulsified asphalt and modified polymer latex, the modified polymer latex is obtained by the reaction of polymer latex containing carboxyl and a cross-linking agent capable of reacting with the carboxyl, and the component B comprises a coagulant.
Preferably, in the component A, the weight portion of the anionic emulsified asphalt is 30-90, and the weight portion of the modified polymer latex is 10.1-90; 10.1-90 parts by weight of modified polymer latex, 10-70 parts by weight of carboxyl-containing polymer latex and 0.1-20 parts by weight of cross-linking agent.
Research shows that the spraying quick-setting rubber asphalt waterproof coating prepared according to the components and the component proportion has excellent performance, the tensile strength reaches more than 1.0MPa, the heat resistance reaches more than 140 ℃, the low-temperature flexibility is lower than minus 25 ℃, the tensile strength of the existing rubber asphalt waterproof coating is 0.3MPa, the heat resistance is 120 ℃, and the low-temperature flexibility is lower than minus 20 ℃, and comparison shows that compared with the existing rubber asphalt waterproof coating, the spraying quick-setting rubber asphalt waterproof coating provided by the embodiment of the invention has high tensile strength and good heat resistance, and is suitable for high-temperature construction environments.
In the spray quick-setting rubber asphalt waterproof coating provided by the embodiment of the present invention, the anionic emulsified asphalt may include various types, such as SBR modified anionic emulsified asphalt, SBS modified anionic emulsified asphalt, and unmodified anionic emulsified asphalt, and the type of the anionic emulsified asphalt may be selected according to the actual application, which is not limited herein.
In the spray rapid-hardening rubber asphalt waterproof coating provided by the embodiment of the invention, the polymer latex containing carboxyl groups used can comprise various types, for example, one or more types of rubber latex containing carboxyl groups and acrylic latex are included. The rubber latex containing carboxyl can be various, such as one or more of carboxyl chloroprene rubber latex, carboxyl styrene-butadiene rubber latex, carboxyl nitrile rubber latex, carboxyl butyl rubber latex, carboxyl polyisoprene latex, carboxyl butadiene rubber latex and carboxyl ethylene propylene diene monomer rubber latex; the acrylic latex may include a plurality, including, for example, one or more of acrylic latex, styrene-acrylic latex, vinyl acetate latex, and acrylate latex.
In the spray quick-setting rubber asphalt waterproof coating provided by the embodiment of the invention, the crosslinking agent capable of reacting with carboxyl can be used in various forms, such as one or more of silane coupling agent, metal oxide, sulfur, peroxide, amine crosslinking agent, epoxy compound and isocyanate. For example, the coupling agent may include a silane coupling agent; the metal oxide may include divalent or more metal oxides such as magnesium oxide, antimony oxide, copper oxide, iron oxide, zinc oxide, etc.; the peroxide may include an organic peroxide; the amine crosslinking agent may include ethylenediamine, hexamethylenediamine, etc.; the isocyanate may include diisocyanate and the like.
Each of the above reagents may include various specific substances, which may be selected according to the actual application, and any specific substances suitable for the embodiments of the present invention may be used, and the present invention is not limited herein.
The cross-linking agent can react with carboxyl in the polymer latex, the reaction of the carboxyl and the generation of new chemical bonds, and the tensile strength and the heat resistance of the obtained waterproof coating are improved. And part of the cross-linking agent can also react with double bonds in the polymer latex, so that the cross-linking degree of the polymer latex and the cross-linking agent is further enhanced, and the tensile strength and the heat resistance of the waterproof coating are further enhanced. And part of the cross-linking agent can also react with the inorganic base material, so that the bonding performance of the waterproof coating and the construction base surface is enhanced, and the bonding stability of the waterproof coating layer and the construction base surface is ensured.
In the embodiment of the present invention, the reaction between the polymer latex containing carboxyl and the crosslinking agent is performed at normal temperature based on the presence of the above reaction, and the reaction temperature may be controlled to 20 to 25 ℃. In the existing waterproof coating, a crosslinking agent is used for carrying out crosslinking reaction on common polymer latex, and the crosslinking reaction can only occur after the reaction temperature is increased to 30-40 ℃ and even is increased to more than 100 ℃. Therefore, compared with the existing waterproof coating, in the spray-coating quick-setting rubber asphalt waterproof coating provided by the embodiment of the invention, the polymer latex containing carboxyl and the cross-linking agent can be carried out at a low temperature, the reaction condition is mild, and the operation and control are convenient.
In the spray-coating quick-setting rubber asphalt waterproof coating provided by the embodiment of the invention, the used anionic emulsified asphalt can be anionic hard emulsified asphalt, and the penetration degree of the anionic hard emulsified asphalt is 30-50. The addition of the anionic hard emulsified asphalt further improves the tensile strength and the heat resistance of the obtained waterproof coating, so that the tensile strength of the waterproof coating is improved to be more than 2-3 times of that of the waterproof coating synthesized by the non-hard emulsified asphalt under the same condition, and the heat resistance temperature can be improved to be more than 200 ℃.
In the spray rapid-setting rubber asphalt waterproof coating provided by the embodiment of the invention, the coagulant can be an inorganic salt coagulant. The type of accelerator may be selected according to the actual application, and embodiments of the present invention are not limited thereto.
In the spray quick-setting rubber asphalt waterproof coating provided by the embodiment of the invention, the component A can also comprise one or more of a water-based auxiliary agent and a flame retardant. The addition of the water-based auxiliary agent and the flame retardant can improve the flame retardant performance and the like of the waterproof coating and improve the quality of the waterproof coating. The types of the aqueous assistant and the flame retardant can be selected according to the actual application, and the embodiment of the invention is not limited herein.
In the spray rapid-hardening rubber asphalt waterproof coating provided by the embodiment of the invention, the component A can also comprise a dispersant, an anti-aging agent, a defoaming agent and other suitable additives with a certain dosage so as to improve the performance of the waterproof coating. The selection of the type and amount of the additive can be selected according to the actual application, and the embodiment of the invention is not limited herein.
The embodiment of the invention also provides a preparation and construction method of the spray rapid-hardening rubber asphalt waterproof coating. Referring to fig. 1, fig. 1 is a flow chart of a preparation and construction method of a spray rapid-hardening rubber asphalt waterproof coating according to an embodiment of the present invention. The method shown in fig. 1 specifically comprises the following steps:
The mixing reaction process of the polymer latex containing carboxyl and the cross-linking agent capable of reacting with the carboxyl is carried out at normal temperature, and the operation is convenient.
102, mixing the anionic emulsified asphalt and the obtained modified polymer latex, and stirring for reaction to obtain a component A.
103, during construction, spraying the component A and the component B by using construction equipment, spraying the component A and the component B onto a construction base surface after the component A and the component B are mixed in a crossed manner outside the construction equipment to form a continuous waterproof coating layer, wherein the component B comprises a coagulant.
According to the preparation and construction method of the waterproof coating, a continuous waterproof coating layer can be formed on a construction base surface, and the waterproof coating layer has high tensile strength and good heat resistance.
Based on the selection of the kind of the cross-linking agent capable of reacting with carboxyl, part of the cross-linking agent can interact with the construction base surface such as an inorganic construction base surface, so that the adhesive force between the waterproof coating layer and the construction base surface is improved, and the stability of the structure consisting of the waterproof coating layer and the construction base surface is improved.
In order to make the present invention more clearly understood by those skilled in the art, the spray quick-setting rubber asphalt waterproof coating provided by the present invention will now be described in detail by way of the following examples.
Example 1
The spraying quick-setting rubber asphalt waterproof coating comprises a component A and a component B.
Wherein the component A comprises 90 parts by weight of anionic emulsified asphalt and 10.1 parts by weight of modified polymer latex; 10.1 parts by weight of modified polymer latex is obtained by the reaction of 10 parts by weight of polymer latex containing carboxyl and 0.1 part by weight of cross-linking agent, and the reaction temperature is 20-25 ℃; the component B comprises 20 parts by weight of inorganic salt coagulant.
The anionic emulsified asphalt comprises SBS modified anionic emulsified asphalt;
the modified polymer emulsion is obtained by the reaction of a coupling agent and rubber latex containing carboxyl, wherein the coupling agent comprises a silane coupling agent, and the rubber latex comprises carboxyl butyl rubber latex;
the component B is inorganic salt coagulant solution, the solvent is water, the inorganic salt coagulant comprises calcium chloride, aluminum sulfate and zinc sulfate, and the concentration of the component B is 15%.
The performance of the sprayed rapid-hardening rubber asphalt waterproof coating provided by the embodiment of the invention is tested, and the test result shows that the sprayed rapid-hardening rubber asphalt waterproof coating has the tensile strength of more than 1.2MPa, the heat resistance of more than 160 ℃, higher tensile strength and better heat resistance.
The invention also tests the low-temperature flexibility of the sprayed rapid-hardening rubber asphalt waterproof coating provided by the embodiment, and the test result shows that the low-temperature flexibility of the sprayed rapid-hardening rubber asphalt waterproof coating reaches below-30 ℃, and the low-temperature flexibility performance is improved.
Example 2
The spraying quick-setting rubber asphalt waterproof coating comprises a component A and a component B.
Wherein the component A comprises 30 parts by weight of anionic emulsified asphalt and 90 parts by weight of modified polymer latex; the 90 weight portions of modified polymer latex is obtained by the reaction of 70 weight portions of polymer latex containing carboxyl and 20 weight portions of cross-linking agent, and the reaction temperature is 20-25 ℃; the component B comprises 8 parts by weight of inorganic salt coagulant.
The anionic emulsified asphalt comprises SBR modified anionic emulsified asphalt;
the modified polymer emulsion is obtained by the reaction of metal oxide and rubber latex containing carboxyl, the cross-linking agent comprises magnesium oxide, antimony oxide, silicon dioxide and zinc oxide, and the rubber latex containing carboxyl comprises carboxyl styrene-butadiene rubber latex;
the component B is inorganic salt coagulant solution, the solvent is water, the inorganic salt coagulant comprises calcium nitrate, aluminum sulfate and zinc sulfate, and the concentration of the component B is 20%.
The performance of the sprayed rapid-hardening rubber asphalt waterproof coating provided by the embodiment of the invention is tested, and the test result shows that the sprayed rapid-hardening rubber asphalt waterproof coating has the tensile strength of more than 1.6MPa, the heat resistance of more than 180 ℃, higher tensile strength and better heat resistance.
The invention also tests the low-temperature flexibility of the sprayed rapid-hardening rubber asphalt waterproof coating provided by the embodiment, and the test result shows that the low-temperature flexibility of the sprayed rapid-hardening rubber asphalt waterproof coating reaches below-35 ℃, and the low-temperature flexibility performance is improved.
Example 3
The spraying quick-setting rubber asphalt waterproof coating comprises a component A and a component B.
Wherein the component A comprises 40 parts by weight of anionic emulsified asphalt and 80 parts by weight of modified polymer latex; 80 parts by weight of modified polymer latex is obtained by the reaction of 60 parts by weight of polymer latex containing carboxyl and 20 parts by weight of cross-linking agent, and the reaction temperature is 20-25 ℃; the component B comprises 60 parts by weight of inorganic salt coagulant.
The anionic emulsified asphalt comprises unmodified anionic emulsified asphalt;
the modified polymer emulsion is obtained by the reaction of peroxide and acrylic latex, wherein the peroxide comprises benzoyl peroxide, and the acrylic latex comprises acrylic latex;
the component B is inorganic salt coagulant solution, the inorganic salt coagulant comprises aluminum sulfate, and the concentration of the component B is 3%.
The performance of the sprayed rapid-hardening rubber asphalt waterproof coating provided by the embodiment of the invention is tested, and the test result shows that the sprayed rapid-hardening rubber asphalt waterproof coating has the tensile strength of more than 1.0MPa, the heat resistance of more than 140 ℃, higher tensile strength and better heat resistance.
The invention also tests the low-temperature flexibility of the sprayed rapid-hardening rubber asphalt waterproof coating provided by the embodiment, and the test result shows that the low-temperature flexibility of the sprayed rapid-hardening rubber asphalt waterproof coating reaches below-25 ℃, and the low-temperature flexibility performance is improved.
Example 4
The spraying quick-setting rubber asphalt waterproof coating comprises a component A and a component B.
Wherein the component A comprises 90 weight parts of anionic hard emulsified asphalt and 10.1 weight parts of modified polymer latex; 10.1 parts by weight of modified polymer latex is obtained by the reaction of 10 parts by weight of polymer latex containing carboxyl and 0.1 part by weight of cross-linking agent, and the reaction temperature is 20-25 ℃; the component B comprises 20 parts by weight of inorganic salt coagulant.
The anionic hard emulsified asphalt comprises SBS modified anionic hard emulsified asphalt with penetration degree of 30-50;
the modified polymer emulsion is obtained by the reaction of a coupling agent and rubber latex containing carboxyl, wherein the coupling agent comprises a silane coupling agent, and the rubber latex comprises carboxyl butyl rubber latex;
the component B is inorganic salt coagulant solution, the solvent is water, the inorganic salt coagulant comprises calcium chloride, aluminum sulfate and zinc sulfate, and the concentration of the component B is 15%.
The performance of the sprayed rapid-hardening rubber asphalt waterproof coating provided by the embodiment is tested, and the test result shows that the tensile strength of the sprayed rapid-hardening rubber asphalt waterproof coating provided by the embodiment is more than 2 times of that of the sprayed rapid-hardening rubber asphalt waterproof coating provided by the embodiment 1, specifically more than 3.0MPa, the heat resistance of the sprayed rapid-hardening rubber asphalt waterproof coating reaches more than 200 ℃, and the sprayed rapid-hardening rubber asphalt waterproof coating has higher tensile strength and better heat resistance.
The invention also tests the low-temperature flexibility of the sprayed rapid-hardening rubber asphalt waterproof coating provided by the embodiment, and the test result shows that the low-temperature flexibility of the sprayed rapid-hardening rubber asphalt waterproof coating reaches below-40 ℃, and the low-temperature flexibility performance is improved.
Example 5
The spraying quick-setting rubber asphalt waterproof coating comprises a component A and a component B.
Wherein the component A comprises 90 parts by weight of anionic emulsified asphalt, 20 parts by weight of modified polymer latex and 1 part by weight of flame retardant; 20 parts by weight of modified polymer latex is obtained by reacting 18 parts by weight of polymer latex containing carboxyl and 2 parts by weight of cross-linking agent, and the reaction temperature is 20-25 ℃; the component B comprises 15 parts by weight of an inorganic salt coagulant.
The anionic emulsified asphalt comprises SBS modified anionic emulsified asphalt;
the modified polymer emulsion is obtained by the reaction of an amine cross-linking agent and rubber latex containing carboxyl, wherein the amine cross-linking agent comprises ethylenediamine, and the rubber latex containing carboxyl comprises carboxyl chloroprene rubber latex;
the component B is inorganic salt coagulant solution, the inorganic salt coagulant comprises zinc sulfate, aluminum sulfate and calcium chloride, and the concentration of the component B is 15%.
The performance of the sprayed rapid-hardening rubber asphalt waterproof coating provided by the embodiment of the invention is tested, and the test result shows that the tensile strength of the sprayed rapid-hardening rubber asphalt waterproof coating reaches more than 1.8MPa, the heat resistance reaches more than 180 ℃, and the tensile strength and the heat resistance are further improved.
The invention also tests the low-temperature flexibility of the sprayed rapid-hardening rubber asphalt waterproof coating provided by the embodiment, and the test result shows that the low-temperature flexibility of the sprayed rapid-hardening rubber asphalt waterproof coating reaches below-30 ℃, and the low-temperature flexibility performance is improved.
The spraying quick-setting rubber asphalt waterproof coating and the preparation and construction method thereof provided by the invention are described in detail, the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The spraying quick-setting rubber asphalt waterproof coating is characterized by comprising a component A and a component B; the component A comprises anionic emulsified asphalt and modified polymer latex, the modified polymer latex is obtained by reacting polymer latex containing carboxyl and a cross-linking agent capable of reacting with the carboxyl, and the component B comprises a coagulant;
wherein the anionic emulsified asphalt is anionic hard emulsified asphalt, and the penetration degree of the anionic emulsified asphalt is 30-50;
the weight portion of the anionic emulsified asphalt is 30-90, and the weight portion of the modified polymer latex is 10.1-90;
10.1-90 parts by weight of the modified polymer latex, 10-70 parts by weight of the polymer latex containing carboxyl, and 0.1-20 parts by weight of the cross-linking agent.
2. The coating according to claim 1,
the concentration of the coagulant in the component B is 3-20%;
the weight part ratio of the component A to the component B is 2:1-15: 1.
3. The paint according to claim 2, wherein the tensile strength of the spray quick-setting rubber asphalt waterproof paint is more than 1.2MPa, the heat resistance is more than 140 ℃, and the low-temperature flexibility is less than minus 25 ℃.
4. The coating material according to claim 1, wherein the reaction temperature of the polymer latex containing carboxyl groups and the crosslinking agent is 20 to 25 ℃.
5. The coating of claim 1, wherein the carboxyl-containing polymer latex comprises one or more of a carboxyl-containing rubber latex and an acrylic latex.
6. The coating of claim 5, wherein the carboxyl-containing rubber latex comprises one or more of a carboxyl neoprene latex, a carboxyl styrene-butadiene rubber latex, a carboxyl nitrile rubber latex, a carboxyl butyl rubber latex, a carboxyl polyisoprene latex, a carboxyl butadiene latex, and a carboxyl ethylene-propylene-diene monomer latex;
the acrylic latex comprises one or more of acrylic latex, styrene-acrylic latex, vinyl acetate-acrylic latex and acrylate latex.
7. The coating of claim 1, wherein the crosslinker comprises one or more of a silane coupling agent, a metal oxide, sulfur, a peroxide, an amine crosslinker, an epoxy compound, and an isocyanate.
8. The coating of claim 1, wherein the a-side further comprises one or more of an aqueous adjuvant and a flame retardant.
9. The coating of claim 1, wherein the accelerator is an inorganic salt accelerator.
10. A method for preparing and constructing the spray quick-setting rubber asphalt waterproof coating according to any one of claims 1 to 9, which comprises the following steps:
step 1: mixing polymer latex containing carboxyl and a cross-linking agent capable of reacting with the carboxyl at the temperature of 20-25 ℃ to react to obtain modified polymer latex;
step 2: mixing the anionic emulsified asphalt and the modified polymer latex, and stirring for reaction to obtain a component A;
and step 3: during construction, the component A and the component B are sprayed out simultaneously by using construction equipment, the component A and the component B are sprayed on a construction base surface after being mixed in a crossed mode outside the construction equipment to form a continuous waterproof coating layer, and the component B comprises an accelerant.
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| CN110423556B (en) * | 2019-08-16 | 2021-03-12 | 山西省交通规划勘察设计院有限公司 | Bridge deck waterproof bonding layer with high shear strength and application method thereof |
| CN110452552B (en) * | 2019-08-16 | 2021-05-11 | 山西省交通规划勘察设计院有限公司 | Anti-skid wearing layer with high bonding strength and preparation method thereof |
| CN110436851B (en) * | 2019-08-16 | 2021-07-20 | 山西省交通规划勘察设计院有限公司 | Noise reduction micro-surfacing with high shear strength and preparation method thereof |
| CN111234640B (en) * | 2020-01-17 | 2022-03-29 | 日照广大建筑材料有限公司 | Styrene-acrylic emulsion for spraying and quick setting, preparation method and application in waterproof coating |
| CN113266083A (en) * | 2020-02-14 | 2021-08-17 | 株式会社钟化 | Waterproof construction method and object obtained by using same |
| CN112280474A (en) * | 2020-10-16 | 2021-01-29 | 上海豫宏（金湖）防水科技有限公司 | Water-based spraying sustained-adhesion high-molecular waterproof coating and preparation method thereof |
| CN113122123A (en) * | 2021-04-22 | 2021-07-16 | 河北涂铠新材料科技有限公司 | Non-asphalt-based spraying fast-setting waterborne polyurethane waterproof coating and preparation method thereof |
| CN116063810B (en) * | 2021-10-29 | 2024-07-05 | 中国石油化工股份有限公司 | Emulsified asphalt additive for improving storage stability and preparation method thereof |
| CN114752303A (en) * | 2022-04-22 | 2022-07-15 | 安徽金港建材科技有限公司 | Spraying rapid-hardening rubber asphalt waterproof coating |
| CN115678432A (en) * | 2022-11-18 | 2023-02-03 | 广东嘉洲兴业实业有限公司 | High-elasticity liquid quick-setting rubber spray film material and preparation method thereof |
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| CN105623508A (en) * | 2014-11-05 | 2016-06-01 | 大禹伟业(北京)国际科技有限公司 | Aqueous flame-retardant rubber asphalt coating film waterproof material and preparation and construction method thereof |
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| CN105623508A (en) * | 2014-11-05 | 2016-06-01 | 大禹伟业(北京)国际科技有限公司 | Aqueous flame-retardant rubber asphalt coating film waterproof material and preparation and construction method thereof |
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Effective date of registration: 20220601 Address after: 510000 block a, Wansheng Plaza, 1238 Xingang East Road, Haizhu District, Guangzhou City, Guangdong Province Patentee after: GUANGZHOU METRO GROUP Co.,Ltd. Patentee after: Dayu Weiye (Beijing) International Technology Co., Ltd Address before: 100190 Huizhong building, shangdiqi street, Haidian District, Beijing Patentee before: DA YU WEI YE (BEIJING) INTERNATIONAL TECHNOLOGY Co.,Ltd. |