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Solvent-free epoxy anti-permeability barrier coating and method for preparing same

A closed coating, anti-penetration technology, applied in epoxy resin coatings, coatings, buildings, etc., can solve the problems of waterproof coatings elasticity, toughness and adhesion to be improved, improve mechanical properties, promote curing reaction, The effect of high adhesive properties

Inactive Publication Date: 2016-06-15
TONSAN ADHESIVES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] CN103849296A discloses an elastic epoxy resin waterproof coating and its preparation method, wherein epoxy resin and conventional modified amine curing agent are used as the main raw materials of A and B components, and a plasticizer is added to improve the flexibility of the material, but The elasticity, toughness and adhesion of the waterproof coating still need to be improved

Method used

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  • Solvent-free epoxy anti-permeability barrier coating and method for preparing same
  • Solvent-free epoxy anti-permeability barrier coating and method for preparing same
  • Solvent-free epoxy anti-permeability barrier coating and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1) Preparation of modified amine curing agent:

[0038] Put polyetheramine, N-aminoethylpiperazine, triethylenetetramine, and nonylphenol into the flask, pass nitrogen protection, keep at 40℃ and stir for 2h, then raise the temperature to 60℃, add nitrile rubber, Heat preservation and stirring for 3 hours, then cool to room temperature for later use; the ratio of polyetheramine, N-aminoethylpiperazine, triethylenetetramine, nonylphenol and nitrile rubber in parts by weight is 8.5:5.6:0.5:9: 4;

[0039] 2) Preparation of component A:

[0040] (1) The bisphenol A epoxy resin, double F epoxy resin and long-chain polyethylene glycol glycidyl ether liquid resin are preheated at 60°C for 6-8 hours;

[0041] (2) Under normal temperature conditions, 60 parts of bisphenol A epoxy resin, 30 parts of double F epoxy resin, 10 parts of long-chain polyethylene glycol glycidyl ether liquid resin, 10 parts of alkyl glycidyl ether, defoaming Add 0.2 part of agent and 0.1 part of polyether mod...

Embodiment 2

[0048] 1) Preparation of modified amine curing agent:

[0049] Put polyetheramine, N-aminoethylpiperazine, tetraethylenepentamine, and nonylphenol into the flask, protect by nitrogen, keep stirring at 40℃ for 2.5h, then raise the temperature to 60℃, add nitrile rubber , Heat preservation and stirring for 3h, and cool to room temperature for later use; wherein the ratio of polyetheramine, N-aminoethylpiperazine, tetraethylenepentamine, nonylphenol and nitrile rubber in parts by weight is 9:5:1:8 : 6;

[0050] 2) Preparation of component A:

[0051] (1) The phenolic epoxy resin, long-chain polypropylene glycol glycidyl ether liquid resin is preheated at 60°C for 7 hours in advance;

[0052] (2) Combine 85 parts of phenolic epoxy resin, 6 parts of long-chain polypropylene glycol glycidyl ether liquid resin, 10 parts of ethylene glycol diglycidyl ether, 0.2 parts of defoamer, and polyether modified polydimethyl ether at room temperature. Add 0.1 part of siloxane copolymer to the dispers...

Embodiment 3

[0059] 1) Preparation of modified amine curing agent:

[0060] Add polyetheramine, N-aminoethylpiperazine, diethylenetriamine, and nonylphenol into the flask according to the proportions, pass nitrogen protection, keep at 40℃ and stir for 2~3h, then raise the temperature to 60℃, add Nitrile rubber, heat preservation and stirring for 3-5 hours, and cool to room temperature for later use; wherein the ratio of polyetheramine, N-aminoethylpiperazine, diethylenetriamine, nonylphenol and nitrile rubber in parts by weight is 9.6: 5.3: 1.5: 10: 6;

[0061] 2) Preparation of component A:

[0062] (1) The hydrogenated bisphenol A epoxy resin, bisphenol F epoxy resin and long-chain polybutylene glycol glycidyl ether liquid resin are preheated at 60°C for 6-8 hours in advance;

[0063] (2) At room temperature, first add 50 parts of hydrogenated bisphenol A epoxy resin, 40 parts of bisphenol F epoxy resin, 10 parts of long-chain polybutylene glycol glycidyl ether liquid resin, and butylene glycol...

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Abstract

The invention relates to a solvent-free epoxy anti-permeability barrier coating.The solvent-free epoxy anti-permeability barrier coating comprises components A and components B.The components A comprise, by weight, 80-100 parts of epoxy resin, 5-15 parts of flexibility improving resin, 5-15 parts of diluents, 0-1 part of defoaming agents and 0.1-0.5 part of leveling agents; the components B comprise, by weight, 80-100 parts of modified amine curing agents and 0-5 parts of silane coupling agents.The solvent-free epoxy anti-permeability barrier coating is mainly used for waterproof treatment on cement base planes and has the advantages of low viscosity, high elongation, adhesion and toughness and the like.

Description

Technical field [0001] The invention relates to the adhesive industry, in particular to a solvent-free epoxy anti-permeation sealing coating and a preparation method thereof. Background technique [0002] In the construction industry, especially the rapid development of roads and bridges and high-speed rail industries, higher requirements are placed on the base surface. Because cement is easy to absorb water, the service life of the entire road surface is reduced due to the moisture in the cement matrix. In order to prevent corrosion problems caused by moisture in the cement and improve the service life of the overall pavement and bridge deck, it is imperative to waterproof the pavement and bridge deck with cement base surface. At present, the waterproofing system of cement base surface mostly adopts waterproofing materials such as modified bitumen coil and polyurea system. The paving of modified asphalt coils requires treatment of the base surface, and the bonding performance w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C08G59/56C08G59/62E01C7/35E01D19/08
CPCC09D163/00C08G59/56C08G59/62C08L2205/02C08L2205/03C08L2205/035C09D7/63E01C7/356E01D19/083C08L63/00C08L83/04
Inventor 王浩师力曾照坤
Owner TONSAN ADHESIVES INC
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