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High performance epoxy resin waterproof coating

A technology of epoxy resin and waterproof coating, applied in the direction of epoxy resin coating, coating, etc., can solve the problem that the elongation at break cannot be obtained, and achieve the effect of improving flexibility and high elongation at break

Active Publication Date: 2015-03-25
XUZHOU WONIUSHAN NEW WATERPROOF MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the elastic epoxy waterproof coating overcomes the weak alkali environment on the surface of the cement substrate, can directly bond firmly on the surface of the cement substrate and can overcome the problems of 20% deformation and cracking of the cement substrate surface, the elongation at break can only be Reach 36%~46%, tensile strength reaches 6.53~8.29MPa, still can't get a kind of high-performance epoxy resin waterproof coating that has higher elongation at break while also guaranteeing the controllability of tensile strength

Method used

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  • High performance epoxy resin waterproof coating
  • High performance epoxy resin waterproof coating
  • High performance epoxy resin waterproof coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 95 parts of bisphenol A liquid epoxy resin E44, 12 parts of polypropylene glycol diglycidyl ether, 2 parts of surfactant byk-104s, 1 part of silicone defoamer BYK-A530, 1 part of leveling agent modified organic Silicon leveling agent BYK310, 3 parts of plasticizer amino-terminated nitrile rubber ATBN, 252 parts of functional fillers including 50 parts of barium sulfate, 50 parts of mica powder, 50 parts of talcum powder, 50 parts of white cement, 50 parts of heavy calcium, 2 parts of anti-sedimentation agent organic bentonite, mixed evenly to obtain component A;

[0024] 20 parts of modified polyether amine curing agent amino-terminated polyoxypropylene ether, 12 parts of ether modified hexamethylenediamine fatty amine curing agent, 3 parts of coupling agent aminotriethoxysilane, 1 part of anti-settling agent organic bentonite, Mix well to get B component.

[0025] When in use, mix components A and B in a ratio of 10:1 and apply it evenly on the concrete cement surface...

Embodiment 2

[0027] Mix 95 parts of bisphenol A liquid epoxy resin E51, 10 parts of polypropylene glycol diglycidyl ether, 2 parts of surfactant byk-104s, 1 part of mixture of defoamer modified silicone BYK-A530 and DEFOM6500, 1 part of flow Leveling agent modified silicone LEVASLIP810, 3 parts of hydroxy-terminated nitrile rubber CTBN, 280 parts of functional fillers including 50 parts of barium sulfate, 50 parts of 800 mesh mica powder, 50 parts of 400 mesh talcum powder, 50 parts of white cement of grade 42.5 , 50 parts of 325 mesh heavy calcium, 30 parts of 80-120 mesh quartz sand, 2 parts of anti-sedimentation agent organic bentonite, mix well to obtain the mixture of component A;

[0028] Mix 22 parts of modified polyetheramine curing agent amino-terminated polyoxypropylene ether and amino-terminated polyoxyethylene ether mixture, 15 parts of ether-modified ethylenediamine curing agent, 3 parts of coupling agent amino-terminated triethoxysilane, aniline Triethoxysilane mixture 1 part...

Embodiment 3

[0031] 95 parts of bisphenol F epoxy resin F652, 10 parts of ethylene glycol diglycidyl ether, 2 parts of wetting agent HX-4020, 1 part of defoamer DEFOM6500, 1 part of fluorine-modified acrylic leveling agent LEVASLIP839 , 3 parts of plasticizer epoxy-based nitrile rubber ETBN, 300 parts of functional fillers include 20 parts of talc powder, 20 parts of 325 mesh quartz powder, 20 parts of 400 mesh heavy calcium, 240 parts of 40-80 mesh quartz sand, one part Mix the modified urea solution DeuRheo2810 evenly to obtain component A;

[0032] Mix 22 parts of modified polyetheramine curing agent with amino-terminated polyoxyethylene ether, 15 parts of ether-modified diethylenetriamine curing agent, 3 parts of coupling agent-terminated aminotriethoxysilane, and 1 part of polyethylene wax with modified The mixture of urea solution, mixed evenly to obtain component B;

[0033] When in use, apply components A and B in a ratio of 25:3 evenly on the concrete cement surface.

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Abstract

The invention relates to a high performance epoxy resin waterproof coating which comprises components A and B, wherein the component A comprises the following raw materials in parts by weight: 95-105 parts of epoxy resin, 10-15 parts of an active diluent, 2-5 parts of a surfactant, 1-2 parts of a defoamer, 1-2 parts of a flatting agent, 2-5 parts of an anti-settling agent, 3-5 parts of a plasticizer and 250-300 parts of functional filler; the component B comprises the following raw materials in parts by weight: 20-30 parts of a modified polyether amine curing agent, 10-20 parts of a modified aliphatic polyamine curing agent and 3-4 parts of a coupling agent. The high performance epoxy resin waterproof coating provided by the invention has considerably high elongation at break, tensile strength and chemical resistance. Experiments verify that the elongation at break of the high performance epoxy resin waterproof coating provided by the invention can reach over 80%, the tensile strength can reach over 12MPa, and the humid substrate bonding strength can reach over 4MPa. The coating which is soaked by an H2SO4 aqueous solution for 15 days is free of cracks, empty bumps and falling.

Description

Technical field: [0001] The invention relates to a waterproof coating for concrete surfaces in highly corrosive environments, in particular to a high-performance epoxy resin waterproof coating. Background technique: [0002] Epoxy resin waterproof coating is a two-component reactive coating with waterproof function, which takes epoxy resin as the main component and reacts with modified amine curing agent. However, epoxy resin is brittle, has small elongation at break, and poor elasticity, which limits the application of epoxy resin to a certain extent. At present, there have been many reports on the toughening and modification of epoxy resins, but they can only improve the brittleness of epoxy resins, but rarely change the elongation at break and tensile strength of the system. For example, the prior art CN201410071867.6 discloses an elastic epoxy resin waterproof coating, including two components A and B, each component is composed as follows in parts by weight: component ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D163/04C09D7/12
CPCC08K2201/003C08K2201/014C08L2205/025C08L2205/03C08L2205/035C09D7/61C09D7/63C09D7/65C09D163/00C09D163/04C08L71/02C08L15/00C08K13/02C08K2003/3045C08K3/34C08K2003/265C08K3/346C08L23/06C08K3/36C08K5/5435C08L63/00C08L63/04
Inventor 薛光辉熊卫锋宋明宇
Owner XUZHOU WONIUSHAN NEW WATERPROOF MATERIALS
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