Water-based long-acting anti-corrosion coating for steel structures of coastal railway buildings

A long-term anti-corrosion and construction steel technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve problems such as corrosion, achieve excellent water resistance, strong weather resistance, and avoid flash rust.

Inactive Publication Date: 2018-01-26
GUANGZHOU RAILWAY GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coatings in the prior art often have a large number of corrosion problems after half a year, resulting in the need for continuous engineering renovation

Method used

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  • Water-based long-acting anti-corrosion coating for steel structures of coastal railway buildings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] A water-based long-lasting anti-corrosion coating for steel structures of coastal railway houses is provided, which contains the following raw materials in parts by weight:

[0077] Styrene-acrylic emulsion 10~20;

[0078] Acrylate copolymer emulsion 5.0~30;

[0079] Self-crosslinking acrylic copolymer emulsion 10~30;

[0080] Dioctyl phthalate 1.0~5.0;

[0081] Organozinc complex 0.5~10.0;

[0082] Zinc molybdate 1.0~5.0;

[0083] Bisphenol F epoxy resin 10~20;

[0084] Oxidized acrylate 5.0~15;

[0085] Ammonium persulfate 1.0~5.0;

[0086] Hyperbranched polyether-polyester resin 0.5~3.0;

[0087] Ketimine 0.5~3.0;

[0088] Gold-red titanium dioxide 10~80.0.

[0089] The self-crosslinking acrylic copolymer emulsion can be LR-8977 or HD2083 of BASF. Bisphenol F type epoxy resin can be DER354 or EPIKOTE862. The hyperbranched polyether-polyester resin is a hyperbranched polyether-polyester resin terminated with phenolic hydroxyl and carboxyl groups.

[0090] ...

Embodiment 2

[0097] A water-based long-acting anti-corrosion coating for steel structures of coastal railway buildings, the other features of which are the same as those of Example 1, the difference being that, in parts by weight, it contains the following parts of raw materials:

[0098] Styrene-acrylic emulsion 12~15;

[0099] Acrylate copolymer emulsion 8.0~15;

[0100] Self-crosslinking acrylic copolymer emulsion 12~16;

[0101] Dioctyl phthalate 1.5~2.5;

[0102] Organozinc complex 1.0~3.0;

[0103] Zinc molybdate 2.0~3.0;

[0104] Bisphenol F type epoxy resin 12~15;

[0105] Oxidized acrylate 6.5~10;

[0106] Ammonium persulfate 2.0~3.0;

[0107] Hyperbranched polyether-polyester resin 1.0~2.0;

[0108] Ketimine 1.0~2.0;

[0109] Gold-red titanium dioxide 15~50.0.

[0110] The water-based long-lasting anti-corrosion paint for the steel structure of the coastal railway house building improves the overall performance of the paint through the overall formulation system. The ca...

Embodiment 3

[0112] A water-based long-acting anti-corrosion coating for steel structures of coastal railway buildings, the other features of which are the same as those of Example 1, the difference being that, in parts by weight, it contains the following parts of raw materials:

[0113] Styrene-acrylic emulsion 13;

[0114] Acrylate copolymer emulsion 9.0;

[0115] Self-crosslinking acrylic copolymer emulsion 15;

[0116] Dioctyl phthalate 2.0;

[0117] Organozinc complex 1.5;

[0118] Zinc molybdate 2.5;

[0119] Bisphenol F type epoxy resin 13;

[0120] Oxidized acrylate 7;

[0121] Ammonium persulfate 2.5;

[0122] Hyperbranched polyether-polyester resin 1.3;

[0123] Ketimine 1.5;

[0124] Gold-red titanium dioxide 22.

[0125] The water-based long-lasting anti-corrosion paint for the steel structure of the coastal railway house building improves the overall performance of the paint through the overall formulation system. The steel structure of the realization object is coa...

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PUM

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Abstract

The invention provides water-based long-effect anti-corrosion paint for a coastal railway house building steel structure. The water-based long-effect anti-corrosion paint is prepared from 10 to 20 parts of styrene-acrylate emulsion, 5.0 to 30 parts of acrylic copolymer emulsion, 10 to 30 parts of self-crosslinking acrylic acid co-polymer emulsion, 1.0 to 5.0 parts of DOP, 0.5 to 10.0 parts of organic zinc complex compounds, 1.0 to 5.0 parts of zinc molybdate, 10 to 20 parts of bisphenol F epoxy resin, 5.0 to 15 parts of oxidized acrylic ester, 1.0 to 5.0 parts of ammonium persulfate, 0.5 to 3.0 parts of hyperbranched polyether-polyester resin, 0.5 to 3.0 parts of ketimine and 10 to 80.0 parts of golden red titanium pigment. The paint has the advantages that the substrate surface attachment force is good; the coated paint layer has good waterproof and dampproof performance; the adaptability to the deformation stress of a steel component is good; the strong weather resistant performance is realized; the anti-corrosion performance of the paint is integrally good.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based long-acting anti-corrosion coating for steel structures of coastal railway buildings. Background technique [0002] According to the statistics of the National Anti-Corrosion Association in 2014, the annual direct loss caused by steel corrosion in China is about 30 billion, and the annual corrosion steel loss accounts for 3% of the annual steel production, which is an astonishing amount. More seriously, partial corrosion may also cause serious engineering accidents. [0003] In the prior art, the steel structure is usually protected by coating a layer of paint on its surface to protect the exposed steel. The coatings in the prior art often have a large number of corrosion problems after half a year, resulting in the need for continuous engineering renovation. [0004] Due to the special purpose of the high-speed railway passenger station, the operation of the pas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D125/14C09D133/04C09D133/00C09D163/00C09D5/08C09D7/61C09D7/63C09D7/65
CPCC08L2201/08C08L2205/02C08L2205/035C09D5/08C09D7/61C09D7/63C09D7/65C09D125/14C09D133/00C09D133/04C09D163/00C08L33/04C08L33/00C08L63/00C08K13/02C08K5/12C08K3/24C08K2003/2241C08L25/14
Inventor 赵利民李庆云李建中贺海建骆锦锋李浩王伟东李光远苏汝兴郑海龙黄玉科郭志华
Owner GUANGZHOU RAILWAY GRP CORP
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