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High-zinc-content mono-component epoxy anti-corrosive paint

An epoxy anti-corrosion coating, one-component technology, applied in the field of coatings, can solve the problems of inconvenient construction, zinc powder sedimentation, low metal zinc content, etc., and achieve the effect of good anti-corrosion effect and convenient construction

Inactive Publication Date: 2012-07-11
SHENZHEN JIADA HIGH TECH IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a single-component epoxy anticorrosion coating with high zinc content, which solves the problem of low metal zinc content in the dry film of the epoxy zinc-rich coating in the prior art, inconvenient construction and zinc powder sedimentation during storage.

Method used

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  • High-zinc-content mono-component epoxy anti-corrosive paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Add 10 parts of PMA solvent and 5 parts of modified epoxy resin 813 (Japan Mitsui) to the paint tank with cooling device, stir at 600 rpm for 10 minutes; continue to add 0.4 parts of wetting and dispersing agent P104S (BYK), 0.4 parts The antifoaming agent 810 (Jintuan Trade), 3 parts of activated organic bentonite slurry, stirred at 1000rpm for 15min; added 70 parts of zinc powder, increased the speed to 2000rpm, and stirred at high speed for 30min, during which circulating water was used to maintain the adjustment Cool the paint can, then reduce the speed to 1000rpm, add 0.8 parts of leveling agent, and continue to stir for 15 minutes. Reduce the rotation speed to 600rpm, stir for 10min, and then discharge and pack.

Embodiment 2

[0045] Add 15 parts of PMA solvent and 7 parts of modified epoxy resin 813 (Mitsui, Japan) to the paint tank with cooling device, stir at 600rpm for 10 minutes; continue to add 0.5 parts of wetting and dispersing agent P104S (BYK), 0.4 parts Defoamer keeper810 (Jintuan Trading), 0.2 parts of activated organic bentonite slurry and 0.5 parts of anti-settling agent 6900-hv (Disparon), stirred at 1000rpm for 20min; adding 120 parts of zinc powder, increased Speed ​​up to 2500rpm, stir at high speed for 30 minutes, during this period, use circulating water to keep the paint tank cool, then reduce the speed to 1200rpm, add 0.5 parts of leveling agent, and continue stirring for 15 minutes. Reduce the rotation speed to 600rpm, stir for 15min, and then discharge and pack.

Embodiment 3

[0047] Add 18 parts of DAC solvent and 9 parts of modified epoxy resin 813 (Mitsui, Japan) to the paint mixing tank with cooling device, stir at 500 rpm for 10 minutes; continue to add 0.3 parts of wetting and dispersing agent P104S (BYK), 0.6 parts Antifoaming agent HX-2085 (Huaxia Pentium), 2 parts of anti-settling agent A630-20X (Disparon), stirring at 1000rpm for 20min; adding 120 parts of zinc powder, increasing the speed to 2500rpm, stirring at high speed for 30min, During this period, use circulating water to keep the paint mixing tank cool, then reduce the speed to 1500rpm, add 0.5 parts of leveling agent, and continue stirring for 15 minutes. Reduce the rotation speed to 600rpm, stir for 10min, and then discharge and pack.

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PUM

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Abstract

The invention provides a high-zinc-content mono-component epoxy anti-corrosive paint. The paint comprises components of, by weight: 6-9 parts of modified epoxy resin, 0-0.5 parts of organic bentonite, 10-20 parts of an environment-friendly type solvent, 0.2-0.6 parts of an antifoaming agent, 0.1-0.4 parts of a wetting dispersant, 0-1 part of a coupling agent, 0-2 parts of an anti-settling agent, 70-130 parts of zinc powder, and 0.5-1 part of a leveling agent. In prior arts, an epoxy zinc-rich paint dry film has problems of low metal zinc content, inconvenient construction and zinc powder settling during a storage process. The high-zinc-content mono-component epoxy anti-corrosive paint provided by the invention assists in solving the problems. Because the paint is a mono-component paint, the construction is convenient, and the paint requires no service life limit. In a dry film, metal zinc content is higher than 96%, the corrosion resisting effect is good, and hard precipitate is not formed during a storage process, such that application is not influenced. The paint can be used in corrosion resisting of steel structures, and can also be used in anti-corrosive coating of ship and machinery components.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a single-component epoxy anticorrosion coating with high zinc content. Background technique [0002] Metal corrosion pervades all fields of national production, from daily life to industrial and agricultural production, from the realization of new technology to the development of cutting-edge science, there are corrosion problems. Due to corrosion, a large amount of hard-won useful materials become waste, causing equipment failure, not only consuming precious resources and energy, causing huge direct economic losses, but also reducing product quality, and even causing catastrophic accidents, pollution and deterioration The environment and indirect economic losses are difficult to estimate. [0003] Zinc powder is a chemically active pigment. The electrode potential of zinc is -7.628V, and the electrode potential of iron is -0.409V, so zinc acts as a sacrificial anode on the su...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/10
Inventor 关有俊谭亮熊永强
Owner SHENZHEN JIADA HIGH TECH IND DEV
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