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Solvent-free epoxy coal pitch anti-corrosive paint

A technology of epoxy coal tar pitch and anti-corrosion coatings, which is applied in the direction of asphalt coatings, epoxy resin coatings, coatings, etc., can solve problems such as needs to be improved, defects, etc., and achieve the goals of maintaining stability, improving impact resistance, and improving adhesion Effect

Active Publication Date: 2019-05-21
CHANGSHU FANGTA COATING CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing solvent-free epoxy coal tar pitch paint has defects and needs to be improved in terms of acid resistance, alkali resistance, corrosion resistance, mechanical strength, adhesion and solvent resistance.

Method used

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  • Solvent-free epoxy coal pitch anti-corrosive paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A solvent-free epoxy coal tar pitch anti-corrosion coating, the solvent-free epoxy coal tar pitch anti-corrosion coating is composed of two parts A and B, wherein the A component is composed of the following raw materials according to the following mass ratios:

[0028] epoxy resin 60

[0029] Coal tar pitch 10

[0030] Filler 35

[0031] Auxiliary 3

[0032] Wherein the epoxy resin is formed by bisphenol A type epoxy resin and silane modified epoxy resin according to the mass ratio of 3:1, and the matrix resin used in the silane modified epoxy resin is bisphenol A type epoxy resin Resin, the silane modifier is dimethyldiethoxysilane. The filler is made of bentonite, diatomaceous earth, talcum powder and nano silicon dioxide according to the mass ratio of 10:1:1:0.5, and the auxiliary agent is composed of coupling agent, inactive diluent and leveling agent The group is pre-prepared according to the mass ratio of 0.3:10:3, and the inactive diluent in the auxiliary ag...

Embodiment 2

[0040] A solvent-free epoxy coal tar pitch anti-corrosion coating, the solvent-free epoxy coal tar pitch anti-corrosion coating consists of two parts A and B, wherein component A is prepared from the following raw materials according to the following mass ratios:

[0041] epoxy resin 40

[0042] Coal tar pitch 18

[0043] Filler 20

[0044] Auxiliary 2

[0045] Wherein the epoxy resin is made of bisphenol A type epoxy resin and silane modified epoxy resin according to the mass ratio of 3~5:1, and the matrix resin used in the silane modified epoxy resin is bisphenol A type Epoxy resin, the silane modifier is dimethyldiethoxysilane. , the filler is bentonite, diatomaceous earth, talcum powder and nano-silicon dioxide according to the ratio of 10: 3: 3: 1.5 mass ratio, and the auxiliary agent is composed of coupling agent, non-reactive diluent and leveling agent The group is pre-prepared according to the mass ratio of 2:10:5, and the inactive diluent in the auxiliary agent is...

Embodiment 3

[0053] A solvent-free epoxy coal tar pitch anti-corrosion coating, the solvent-free epoxy coal tar pitch anti-corrosion coating is composed of two parts A and B, wherein the A component is configured from the following raw materials according to the following mass ratio:

[0054] epoxy resin 50

[0055] Coal tar pitch 17

[0056] Filler 28

[0057] Auxiliary 5

[0058] Wherein the epoxy resin is formed by bisphenol A type epoxy resin and silane modified epoxy resin according to the mass ratio of 5:1, and the matrix resin used in the silane modified epoxy resin is bisphenol A type epoxy resin Resin, the silane modifier is dimethyldiethoxysilane. , the filler is made of bentonite, diatomaceous earth, talcum powder and nano silicon dioxide according to the mass ratio of 10:2:2:1.2, and the auxiliary agent is composed of coupling agent, non-reactive diluent and leveling agent The composition is pre-prepared according to the mass ratio of 1.5:10:3.5, and the inactive diluent in...

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Abstract

The invention discloses solvent-free epoxy coal pitch anti-corrosive paint. The solvent-free epoxy coal pitch anti-corrosive paint comprises a component A and a component B, wherein the component A isprepared by mixing epoxy resin, coal pitch, an assistant and a filler, wherein the epoxy resin is formed by proportioning bisphenol A type epoxy resin and silane modified epoxy resin according to a specific mass ratio; the filler is prepared by mixing bentonite, diatomite, talcum powder and nano silicon dioxide; the assistant is prepared by mixing a coupling agent, a non-activated thinner and a leveling agent; the component B is prepared by combining a curing agent and a curing accelerator; and the component A and the component B are mixed according to a specific proportion to obtain the epoxy coal pitch anti-corrosive paint. The solvent-free epoxy coal pitch anti-corrosive paint does not contain a solvent, has certain impact resistance while having excellent adhesive power, acid resistance, alkali resistance and salt resistance, and meets the anti-corrosive requirements of the production environment.

Description

technical field [0001] The invention relates to the field of epoxy coatings, in particular to a solvent-free epoxy coal tar pitch anticorrosion coating. Background technique [0002] Solvent-free epoxy coal tar pitch coating is a kind of anti-corrosion coating that combines the acid resistance, alkali resistance, water resistance of coal tar pitch and the adhesion, mechanical strength and solvent resistance of epoxy resin. It has excellent anti-microbial and electrical insulation properties It is an excellent anti-corrosion coating variety and is widely used in buried steel pipelines, storage tank bottom plates and concrete pipelines for external corrosion protection. Compared with ordinary solvent-based epoxy coal tar pitch coatings, the content of volatile substances is greatly reduced, and the requirements for ventilation are not high. It is especially suitable for coating construction in a closed state, and it belongs to a general direction for the development of coating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D195/00C09D7/61C09D7/20C09D7/65
Inventor 钱强
Owner CHANGSHU FANGTA COATING CHEM
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