Elastic epoxy resin coating and preparation method thereof

A technology of epoxy resin coating and epoxy resin, applied in the direction of epoxy resin coating, anti-corrosion coating, polyurea/polyurethane coating, etc., can solve the problems of coating loss of shielding ability, structural corrosion, low elongation, etc., to promote Corrosion science, improved toughness, elasticity and improved elongation at break effect

Active Publication Date: 2020-05-08
BEIJING NEW VISION BUILDING CONSTR TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the epoxy system has many advantages, its biggest defect is its high brittleness and low elongation, which poses a great risk to the anticorrosion of concrete structures, because after the concrete cracks, the coating system will crack, making the coating The layer loses its shielding ability, and the medium directly penetrates into the concrete, causing corrosion to the structure

Method used

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  • Elastic epoxy resin coating and preparation method thereof
  • Elastic epoxy resin coating and preparation method thereof
  • Elastic epoxy resin coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A kind of elastic epoxy resin coating, its composition proportioning by weight is as follows:

[0030] (1) bisphenol A epoxy resin 100;

[0031] (2) The solvent is xylene 25, butyl acetate 25;

[0032] (3) The modified resin is fluorine rubber 23 resin 15;

[0033] (4) aluminum alloy scales 40;

[0034] (5) Dimethicone 1.5;

[0035] (6) Titanate coupling agent 2.5;

[0036] (7) Fumed silica 1.3;

[0037] (8) Containing NH with a molecular weight of 5000 to 8000 2 Fluorine rubber curing agent 75 (the curing agent is synthesized using fluorine rubber 23).

Embodiment 2

[0039] A kind of elastic epoxy resin coating, its composition proportioning by weight is as follows:

[0040] (1) bisphenol F epoxy resin 100;

[0041] (2) Solvent is methyl acetate 10, cyclohexanone 5, dimethyl carbonate 40;

[0042] (3) The modified resin is polyurethane resin 45;

[0043] (4) 80 mesh stainless steel scales 25;

[0044] (5) Pigments and fillers are talcum powder 10, mica powder 80, titanium dioxide 90, chrome yellow 15, carbon black 10.5;

[0045] (6) Dimethicone 2.5;

[0046] (7) Organic bentonite 2.5;

[0047] (8) Containing NH with a molecular weight of 12,000 to 15,000 2 Fluorine rubber curing agent 95 (the curing agent is synthesized using fluorine rubber 246).

Embodiment 3

[0049] A kind of elastic epoxy resin coating, its composition proportioning by weight is as follows:

[0050] (1) bisphenol A epoxy resin 100;

[0051] (2) The solvent is butanone 25, ethylene glycol butyl ether 35;

[0052] (3) The modified resin is fluorine rubber 26 resin 15;

[0053] (4) aluminum alloy scales 40;

[0054] (5) barium sulfate 240;

[0055] (6) mica powder 40;

[0056] (7) Dimethicone 1.5;

[0057] (8) Titanate coupling agent 2.5;

[0058] (9) Fumed silica 1.3;

[0059] (10) Containing NH with a molecular weight of 5000 to 8000 2 Fluorine rubber curing agent 75 (the curing agent is synthesized using fluorine rubber 26).

[0060] The concrete preparation method of embodiment 1, embodiment 2, embodiment 3 is the same. First, weigh each component according to the weight ratio of each example, and then prepare component A and component B respectively. When using, just mix component A and component B directly. in,

[0061] Preparation of component A: firs...

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Abstract

The invention discloses an elastic epoxy resin coating and a preparation method thereof. The coating comprises epoxy resin, scales, modified resin, an additive, an assistant, a solvent and a curing agent, and is mainly used as a concrete anticorrosive coating. Compared with a common epoxy coating, the coating of the invention has excellent ductility and elongation at break, also has good corrosionresistance, can be widely applied to concrete structure protection in various heavy corrosion environments such as acid, alkali, salt, ocean, soil, chemical atmosphere and the like, and has excellentprotection performance.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion coatings, in particular to an elastic epoxy resin coating and a preparation method thereof, which can be used as high-elastic anti-corrosion coatings and are widely applicable to various heavy corrosion environments such as acids, alkalis, salts, oceans, soils, chemical atmospheres, etc. The concrete structure protection has excellent protection performance. Background technique [0002] At present, concrete structures still occupy a relatively large proportion of industrial and civil structures due to their unique characteristics. However, the steel bars and cement in concrete structures are particularly vulnerable to corrosion in various environments, resulting in reduced structural performance and even early scrapping. It has caused huge losses to enterprises and society. Therefore, the anti-corrosion work of concrete structures is very important. [0003] Among the many anti-corrosion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D175/04C09D127/12C09D5/10C09D7/61C09D7/63C09D7/65C09D7/20C08G59/50
CPCC08G59/504C08K2003/2241C08K2201/014C08L2205/03C09D5/10C09D5/103C09D5/106C09D163/00C09D7/20C09D7/61C09D7/63C09D7/65C09D7/70C08L27/12C08L83/04C08K13/04C08K7/26C08K3/08C08K5/10C08L75/04C08K13/06C08K3/346C08K3/34C08K3/22
Inventor 邢峻温晖徐岩张剑王炜韩宇栋
Owner BEIJING NEW VISION BUILDING CONSTR TECH
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