Derusting-free metal surface corrosion-resisting cement paint

A metal surface and cement coating technology, applied in the direction of anti-corrosion coatings, cement coatings, etc., can solve the problems of high cost requirements, achieve good wear resistance, long service life, and increase the service life

Inactive Publication Date: 2019-01-22
河北众诚伟业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent involves many ingredients, so the cost of preparation is relatively high, and the derusting effect on metal is only temporary, and it needs to be reprocessed regularly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of rust-free metal surface anticorrosion cement paint, comprises rust-removing layer paint and waterproof layer paint, and rust-removing layer paint comprises Portland cement and rust remover, and waterproof layer paint comprises Portland cement and waterproofing agent, rust remover Or the weight ratio of waterproofing agent and Portland cement is 1:1.3, and the rust remover comprises the following materials in weight percentage: 90% water, 5% calcium chloride, 3% polyvinyl alcohol, and 2% dispersion compounding aid, The waterproofing agent includes materials in the following weight percentages: 89% water, 6% sodium methyl silicate, 3% polyvinyl alcohol and 2% dispersion composite auxiliary agent. Portland cement consists of materials in the following percentages by weight: 95% Portland and 5% gypsum. The polyvinyl alcohol in the rust remover is polyvinyl alcohol 088-60, and the polyvinyl alcohol in the waterproofing agent is 100-40H.

Embodiment 2

[0028] A kind of rust-free metal surface anticorrosion cement paint, comprises rust-removing layer paint and waterproof layer paint, and rust-removing layer paint comprises Portland cement and rust remover, and waterproof layer paint comprises Portland cement and waterproofing agent, rust remover Or the weight ratio of waterproofing agent and Portland cement is 1:1.2, and the rust remover comprises the following materials by weight percentage: 86% water, 3% calcium chloride, 2% polyvinyl alcohol, and 1% dispersing composite additive, The waterproofing agent comprises the following materials in weight percentage: 90% water, 3% potassium methyl silicate, 4% polyvinyl alcohol and 3% dispersion composite auxiliary agent. Portland cement consists of materials in the following percentages by weight: 95% Portland and 5% gypsum. The polyvinyl alcohol in the rust remover is polyvinyl alcohol 088-60, and the polyvinyl alcohol in the waterproofing agent is 100-40H.

Embodiment 3

[0030] A kind of rust-free metal surface anticorrosion cement paint, comprises rust-removing layer paint and waterproof layer paint, and rust-removing layer paint comprises Portland cement and rust remover, and waterproof layer paint comprises Portland cement and waterproofing agent, rust remover Or the weight ratio of water repellent and Portland cement is 1:1.5, and the rust remover comprises the following materials in weight percentage: 94% water, 7% calcium chloride, 4% polyvinyl alcohol, and 3% dispersion composite additive, The waterproofing agent comprises the following materials in weight percentage: 87% water, 10% sodium methyl silicate, 2% polyvinyl alcohol and 1% dispersion composite auxiliary agent. Portland cement consists of materials in the following percentages by weight: 95% Portland and 5% gypsum. The polyvinyl alcohol in the rust remover is polyvinyl alcohol 088-60, and the polyvinyl alcohol in the waterproofing agent is 100-40H.

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PUM

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Abstract

The invention discloses derusting-free metal surface corrosion-resisting cement paint, which comprises a derusting coating and a waterproof coating. The derusting coating comprises Portland cement anda rust remover; the waterproof coating comprises Portland cement and a waterproofing agent. The weight ratio of the rust remover or the waterproofing agent to the Portland cement is 1:1.2-1.5. The rust remover comprises the following materials (by weight): 86-94% of water, 3-7% of free calcium ions, 2-4% of polyvinyl alcohol, and 1-3% of a dispersion compound additive. The waterproofing agent includes the following materials (by weight): 83-94% of water, 3-10% of free silicon ions, 2-4% of polyvinyl alcohol and 1-3% of a dispersion compound additive. During construction, metal surface doesn'tneed to undergo rust removal or polishing but can be directly coated with the paint, which has acid resistance, alkali resistance and salt resistance. By the use of inorganic materials, the product is non-toxic, tasteless, fireproof, simple in construction, safe and environmentally friendly.

Description

technical field [0001] The invention relates to the field of metal surface treatment, in particular to a rust-free metal surface anticorrosion cement coating. Background technique [0002] Steel structures such as steel-frame buildings or steel-frame bridges are premised on long-term use. Therefore, these steel structures have been given surface coating for the purpose of ensuring corrosion resistance and aesthetics. Generally, the coating consists of a base coat for rust resistance, a top coat for ensuring weather resistance and aesthetics, and an intermediate coat for improving the adhesion between the base coat and the top coat. The coating consists of three layers. The coating life is greatly affected by the coating material and the use environment, but in a more severe environment, there are also modified epoxy-based coatings with a coating life of 6 years, and epoxy-urethane-based coatings with a coating life of 6 years. For 10 years such an example. Consequently, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/08C09D1/08C09D7/61C09D7/63C09D7/65
CPCC09D1/08C09D5/08C09D7/61C09D7/63C09D7/65
Inventor 韩计州张海英高小峰
Owner 河北众诚伟业科技有限公司
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