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PMMA waterproof coating for concrete bridges of intercity high-speed railways and city light rails

A technology of high-speed railway and waterproof coating, applied in the direction of coating, can solve the problems of poor water resistance and UV resistance, and achieve the effect of improving strength and tear resistance, high adhesion and good heat resistance

Active Publication Date: 2021-02-05
江苏绿迈环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polymethacrylic resin waterproof coating is a brand-new concrete waterproof material. After construction, it can be rapidly solidified at room temperature or low temperature to form an overall dense, continuous and seamless high-strength, high-elastic coating. The balanced combination of various physical properties including tensile strength, tear strength, impact toughness, hardness, low temperature resistance and elongation at break has been used as a waterproof layer for concrete bridge structures, but the existing polymethyl Acrylic resin waterproof coating has the defects of poor water resistance and UV resistance, which limits its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of intercity high-speed railway proposed by the present invention and urban light rail concrete bridge use PMMA waterproof coating, it is made up of A component, B component and C component three parts, and A component, B component, C component The weight ratio is 120:70:5.8;

[0022] The raw materials of component A include by weight: 20 parts of methyl methacrylate prepolymer resin, 15 parts of methyl methacrylate, 3 parts of pentyl acrylate, 9 parts of terpene resin, 3 parts of epoxy resin, polypropylene glycol two 11 parts of methacrylate, 4 parts of propylene carbonate, 0.1 part of polymerization inhibitor, 2 parts of hollow mesoporous silica nanospheres, 13 parts of montmorillonite, 5 parts of graphene, 4 parts of pigment, N,N-di 0.55 part of methyl p-toluidine, 0.05 part of N,N-diethylaniline, 0.38 part of cobalt isooctanoate, 0.1 part of ultraviolet absorber, 1 part of anti-precipitation aid;

[0023] The raw materials of component B include by weight: 2...

Embodiment 2

[0026] A kind of intercity high-speed railway proposed by the present invention and urban light rail concrete bridge use PMMA waterproof coating, it is made up of A component, B component and C component three parts, and A component, B component, C component The weight ratio is 95:85:3;

[0027] The raw materials of component A include by weight: 55 parts of methyl methacrylate prepolymer resin, 10 parts of methyl methacrylate, 13 parts of pentyl acrylate, 2 parts of terpene resin, 8 parts of epoxy resin, polypropylene glycol di 3 parts of methacrylate, 2 parts of propylene carbonate, 0.3 parts of polymerization inhibitor, 9 parts of hollow mesoporous silica nanospheres, 4 parts of montmorillonite, 18 parts of graphene, 2 parts of pigment, N,N-di 0.3 part of methyl p-toluidine, 0.38 part of N,N-diethylaniline, 0.05 part of cobalt isooctanoate, 0.7 part of ultraviolet absorber, 0.1 part of anti-precipitation aid;

[0028] The raw materials of component B include by weight: 55 ...

Embodiment 3

[0031] A kind of intercity high-speed railway proposed by the present invention and urban light rail concrete bridge use PMMA waterproof coating, it is made up of A component, B component and C component three parts, and A component, B component, C component The weight ratio is 120:77:5;

[0032]The raw materials of component A include by weight: 28 parts of methyl methacrylate prepolymer resin, 14 parts of methyl methacrylate, 6 parts of pentyl acrylate, 9 parts of terpene resin, 11 parts of epoxy resin, polypropylene glycol two 9 parts of methacrylate, 5 parts of propylene carbonate, 0.05 parts of hydroquinone, 8 parts of hollow mesoporous silica nanospheres, 8 parts of montmorillonite, 13 parts of graphene, 0.8 parts of talc, 3.2 parts of carbon black 0.1 part of N,N-dimethyl-p-toluidine, 0.3 part of N,N-diethylaniline, 0.3 part of cobalt isooctanoate, 0.3 part of benzotriazole ultraviolet absorber UV-P, benzotriazole 0.03 parts of ultraviolet absorber UV-3277, 0.27 parts ...

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Abstract

The invention discloses a PMMA waterproof coating for concrete bridges of intercity high-speed railways and city light rails. The PMMA waterproof coating consists of a component A, a component B and acomponent C, wherein the component A is prepared from the following raw materials: methyl methacrylate pre-polymerized resin, methyl methacrylate, amyl acrylate, terpene resin, epoxy resin, polypropylene glycol dimethacrylate, propylene carbonate, a polymerization inhibitor, hollow mesoporous silica nanospheres, montmorillonite, graphene, a pigment, N, N-dimethyl-p-toluidine, N, N-diethylaniline,cobalt iso-octoate, an ultraviolet light absorber and an anti-precipitation auxiliary agent are added, the component B is prepared from the following raw materials: methyl methacrylate prepolymer resin, methyl methacrylate, amyl acrylate, a methyl acrylate and perfluoroalkylethyl acrylate diblock copolymer, polyethylene glycol dimethacrylate, layered aluminum phosphate, hydrotalcite, a multi-walled carbon nanotube, an anti-precipitation additive and a pigment, and component C comprises a curing agent.

Description

technical field [0001] The invention relates to the technical field of waterproof coatings, in particular to a PMMA waterproof coating for intercity high-speed railways and urban light rail concrete bridges. Background technique [0002] Concrete bridges are easily eroded by rainwater. Installing a waterproof layer on the bridge surface pavement can reduce or inhibit various diseases of the concrete bridge surface caused by water erosion, effectively improve the durability of the bridge structure, and prolong the service life of the concrete bridge. . Polymethacrylic resin waterproof coating is a brand-new concrete waterproof material. After construction, it can be rapidly solidified at room temperature or low temperature to form an overall dense, continuous and seamless high-strength, high-elastic coating. The balanced combination of various physical properties including tensile strength, tear strength, impact toughness, hardness, low temperature resistance and elongation ...

Claims

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Application Information

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IPC IPC(8): C09D4/02C09D4/06C09D7/61C09D7/63C09D7/65C09D7/62
CPCC09D4/06C09D7/61C09D7/63C09D7/70C09D7/62C09D7/65
Inventor 徐正杰
Owner 江苏绿迈环境技术有限公司
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