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Solvent-free epoxy heavy-duty anticorrosive coating and preparation method thereof

A solvent-free, heavy-duty anti-corrosion technology, used in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of poor adhesion, low work efficiency, multiple coating, etc., to achieve excellent anti-corrosion performance and reduce pollution , the effect of excellent chemical resistance

Inactive Publication Date: 2019-08-23
HENAN UNIV OF URBAN CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing anti-corrosion coating also has the following defects: one is that the adhesion between the anti-corrosion coating and steel needs to be improved; the other is that the anti-corrosion effect of the solvent-free anti-corrosion coating needs to be further improved; Low work efficiency and high cost

Method used

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  • Solvent-free epoxy heavy-duty anticorrosive coating and preparation method thereof
  • Solvent-free epoxy heavy-duty anticorrosive coating and preparation method thereof
  • Solvent-free epoxy heavy-duty anticorrosive coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A solvent-free epoxy heavy-duty anti-corrosion coating, including A component and B component; A component includes 100 parts of E-44 epoxy resin, 16 parts of 699 active diluent, 15 parts of micaceous iron oxide, 50 parts of barium sulfate, 15 parts of zinc phosphate, 15 parts of zinc powder, 1.5 parts of KH-550 silane coupling agent, 2.2 parts of dispersant, 1.1 parts of thixotropic agent, 0.22 parts of graphene and 1.1 parts of film-forming auxiliary agent; 2.0:1 650 curing agent and 593 curing agent; the mass ratio of liquid epoxy resin in component B to component A is 1.5:1.

[0036] A kind of preparation method of above-mentioned solvent-free epoxy heavy-duty anticorrosion coating, comprises the following steps:

[0037] To prepare component A, stir the solvent-free epoxy resin and reactive diluent at a speed of 200r / min for 10 minutes, then add pigments and fillers and continue stirring; then add coupling agent, dispersant and thixotropic agent at a speed of 500r / ...

Embodiment 2

[0039] A solvent-free epoxy heavy-duty anti-corrosion coating, including A component and B component; A component includes 100 parts of E-51 epoxy resin, 16 parts of 699 active diluent, 15 parts of micaceous iron oxide, 50 parts of barium sulfate, 15 parts of zinc phosphate, 15 parts of zinc powder, 1.5 parts of KH-550 silane coupling agent, 2.2 parts of dispersant, 1.1 parts of thixotropic agent, 0.22 parts of graphene and 1.1 parts of film-forming auxiliary agent; 1.5:1 650 curing agent and 593 curing agent; the mass ratio of liquid epoxy resin in component B to component A is 1.5:1.

[0040] A kind of preparation method of above-mentioned solvent-free epoxy heavy-duty anticorrosion coating, refer to embodiment 1.

Embodiment 3

[0042] A solvent-free epoxy heavy-duty anti-corrosion coating, including A component and B component; A component includes 100 parts of E-51 epoxy resin, 12 parts of 699 active diluent, 7.5 parts of micaceous iron oxide, 7.5 parts of mica powder, 50 parts of barium sulfate, 15 parts of zinc phosphate, 15 parts of zinc powder, 2.2 parts of KH-550 silane coupling agent, 1.5 parts of dispersant, 0.8 parts of thixotropic agent, 0.3 parts of graphene and 0.8 parts of film-forming aid; Group B Parts include 650 curing agent and 593 curing agent with a mass ratio of 2.0:1; the mass ratio of liquid epoxy resin in component B to component A is 2.0:1.

[0043] A kind of preparation method of above-mentioned solvent-free epoxy heavy-duty anticorrosion coating, refer to embodiment 1.

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Abstract

The invention relates to the field of anticorrosive coatings, in particular to a solvent-free epoxy heavy-duty anticorrosive coating and a preparation method thereof. The solvent-free epoxy heavy-dutyanticorrosive coating comprises a component A and a component B; the component A comprises 100 parts of a solvent-free epoxy resin, 8-16 parts of a active diluent, 70-115 parts of a pigment and filler, 1.5-2.6 parts of a coupling agent, 1.5-2.6 parts of a dispersing agent, and 0.8-1.3 parts of a thixotropic agent; and the component B is a curing agent, and the mass ratio of the component B to theliquid epoxy resin in the component A is (1.5:1)-(3.5:1). The solid content of the heavy-duty anticorrosive coating is 98% or more, and the coating is an environment-friendly coating; the coating contains only a very small amount of a volatile organic solvent, so that only a small amount of shrinkage cavities and pinholes are formed after the coating is cured, and the compactness of the coating effectively increases the barrier properties and permeability resistance of an anticorrosive coating layer.

Description

technical field [0001] The invention relates to the field of anti-corrosion coatings, in particular to a solvent-free epoxy heavy-duty anti-corrosion coating for marine steel structures and a preparation method thereof. Background technique [0002] Metal materials play a very important role in economic life; however, the corrosion of metal and reinforced concrete brings huge economic losses and social harm to human beings. According to statistics, the economic loss caused by steel corrosion in my country in recent years is close to 500 billion yuan, which has accounted for 5% of the national economic output. The phenomenon that steel materials undergo physical changes, chemical changes and electrochemical changes in a corrosive environment, resulting in performance changes until they are completely damaged, is called steel corrosion. Applying anti-corrosion coatings to steel equipment is currently the fastest and most effective method. Coatings mainly protect steel materi...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/10C09D7/61C09D7/63
CPCC08K2003/0893C08K2003/2272C08K2003/3045C08K2003/328C09D5/106C09D7/61C09D7/63C09D163/00C08K3/042C08K3/22C08K3/30C08K3/32C08K3/08C08K5/544C08K5/521
Inventor 赵振新鲁冰雪韩二帅陈树芳陈湘李刚时庆松周建伟沙燕雷程琪张智杜龙升张浩
Owner HENAN UNIV OF URBAN CONSTR
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