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Water-based anticorrosive coating

An anti-corrosion coating, water-based technology, applied in the field of chemical coatings, can solve problems such as unsatisfactory anti-corrosion performance of water-based coatings

Pending Publication Date: 2021-06-18
杨玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the anti-corrosion performance of existing water-based coatings is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A kind of water-based anticorrosion paint, by weight percentage, is made up of following components:

[0011] Waterborne epoxy resin 39%, deionized water 15%, wetting agent 0.2%, dispersant 0.3%, defoamer 0.2%, barium sulfate 14%, wetting agent 0.2%, thickener 0.2%, cosolvent 1.5 %, rheological agent 0.3%.

[0012] The preparation method of the above-mentioned coating is specifically: under low-speed stirring conditions, premixing deionized water, water-based epoxy resin, wetting agent, dispersant and defoamer in order, then adding barium sulfate under stirring, and then Increase the stirring speed to 600-800r / min, and it is enough to disperse evenly without large particles: transfer to the grinding process, turn on the sand mill equipment, and perform full grinding; the grinding fineness is <40μm, and then add co-solvent, rheological agent and wetting agent Agent, 800r / min stirring for 30min, adding thickener during stirring.

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PUM

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Abstract

The invention discloses a water-based anticorrosive coating which is prepared from the following components in percentage by weight: 37-41% of water-based epoxy resin, 15-16% of deionized water, 0.2% of a wetting agent, 0.3% of a dispersing agent, 0.1-0.3% of a defoaming agent, 8-15% of barium sulfate, 0.1-0.3% of a wetting agent, 0.1-0.3% of a thickening agent, 0.5-2% of a cosolvent and 0.3% of a rheological agent. The coating prepared by the preparation method disclosed by the invention is free from bubbling, falling, rusting and cracking after being subjected to a salt spray resistance test for 300 hours, and the defects that shrinkage cavities, pinholes, bubbles and the like are easy to appear in the high-temperature operation of the conventional coating are overcome.

Description

technical field [0001] The invention belongs to the technical field of chemical coatings, in particular to a water-based anticorrosion coating. Background technique [0002] With the advancement of science and technology and the development of society, people's awareness of environmental protection is increasing. As one of the new green and environment-friendly coatings, water-based coatings have been further applied. In recent years, the coatings industry in various countries has been conducting research on coatings with low VOC emissions. Water-based coatings can greatly reduce or even completely eliminate VOC emissions, and will become an important coating category. Moreover, using water as the dispersion medium makes construction safer and more convenient. Water-based coatings will have excellent development prospects. However, the anticorrosion performance of the existing water-based coatings is not ideal. Contents of the invention [0003] In order to solve the abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/61
CPCC08K2003/3045C09D5/08C09D163/00C09D7/61C08K3/30
Inventor 杨玲
Owner 杨玲