Water-based environment-friendly rust removal and prevention film covering liquid and production process thereof

An environmentally friendly, water-based technology, applied in anti-corrosion coatings, coatings, etc., can solve the problems of short salt spray resistance, short shelf life, peeling and powdering, etc., and achieve long water and salt spray resistance, strong metal adhesion, and anti-corrosion. strong rust effect

Inactive Publication Date: 2015-12-23
NANTONG REPAIR AIR CHEM BIOENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the water-based anti-corrosion coatings with rust and rust used in the market generally have the disadvantages of poor conversion effect, high price, short shelf life, and short salt spray resistance time. When used in industry, there will always be bottoming, powdering, and paint film. The phenomenon of peeling, in the final analysis, is inseparable from the film-forming substances. The film-forming substances used in the water-based anti-corrosion coatings with rust on the market are generally copolymers of vinylidene chloride and vinyl chloride, which do have Good barrier property, acid and alkali resistance, but its adhesion to steel is poor, and the hardness of the coating after film formation is high but the toughness is too poor, and it is easy to peel off and pulverize from the steel surface

Method used

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  • Water-based environment-friendly rust removal and prevention film covering liquid and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0022] A water-based environment-friendly rust removal and anti-rust coating solution, the water-based environment-friendly rust removal and anti-rust coating solution is composed of the following components in parts by weight:

[0023] 20 parts deionized water

[0024] Rust remover and anti-rust agent 5 parts

[0025] Coalescing aid 2 parts

[0026] Antifreeze 2 parts

[0027] 0.3 parts of defoamer

[0028] 40 parts of film-forming substance

[0029] Substrate wetting agent 0.3 parts.

[0030] The rust-removing and anti-rust agent adopts tannic acid.

[0031] The film-forming aid adopts alcohol ester twelve.

[0032] The antifreeze uses ethanol.

[0033] The film-forming substance is RPW402 vinyl multi-component copolymerized vinylidene chloride emulsion of Nantong Rui Puier Biological Engineering Co., Ltd., with a solid content of 40%.

[0034] The defoamer adopts Hemings DF1181.

[0035] The substrate wetting agent adopts Hemings W77.

[0036] A production process...

specific Embodiment 2

[0037] A water-based environment-friendly rust removal and anti-rust coating solution, the water-based environment-friendly rust removal and anti-rust coating solution is composed of the following components in parts by weight:

[0038] 30 parts deionized water

[0039] Rust remover and anti-rust agent 15 parts

[0040] 8 parts of film-forming aid

[0041] Antifreeze 4 parts

[0042] 1 part defoamer

[0043] 70 parts of film-forming substance

[0044] Substrate wetting agent 1 part.

[0045] The rust-removing and anti-rust agent adopts tannic acid.

[0046] The film-forming aid dipropylene glycol methyl ether.

[0047] The antifreeze uses ethylene glycol.

[0048] The film-forming material adopts RPW402 vinyl multi-component copolymerized vinylidene chloride emulsion of Nantong Rui Puier Biological Engineering Co., Ltd., with a solid content of 40%.

[0049] The defoamer uses BASF 2410.

[0050] The substrate wetting agent adopts Hemings W469.

[0051] A production p...

specific Embodiment 3

[0052] A water-based environment-friendly rust removal and anti-rust coating solution, the water-based environment-friendly rust removal and anti-rust coating solution is composed of the following components in parts by weight:

[0053] 24 parts deionized water

[0054] Rust remover and anti-rust agent 12 parts

[0055] 6 parts of film-forming aid

[0056] 3 parts of antifreeze

[0057] 0.7 parts of defoamer

[0058] 60 parts of film-forming substance

[0059] 0.8 parts of substrate wetting agent.

[0060] The rust-removing and anti-rust agent adopts tannic acid.

[0061] The film-forming aid adopts dipropylene glycol butyl ether.

[0062] Described antifreeze adopts propylene glycol.

[0063] The film-forming substance is RPW402 vinyl multi-component copolymerized vinylidene chloride emulsion of Nantong Rui Puier Biological Engineering Co., Ltd., with a solid content of 40%.

[0064] The defoamer adopts Rhodia DN-642.

[0065] The substrate wetting agent adopts Hemings...

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Abstract

The invention discloses water-based environment-friendly rust removal and prevention film covering liquid and a production process thereof. The water-based low-VOC environment-friendly rust removal and prevention film covering liquid is prepared by adding coalescing agent, base material wetting agent, import antifoaming agent and other pollution-free auxiliaries with tannic acid as rust removal and prevention agent and vinyl multi-copolymerization emulsion as film forming material. Raw materials of the liquid are easy to obtain, rust removal labor is saved, anti-corrosion performance is high, and safety, environment protection and acid and alkali corrosion resistance are achieved.

Description

technical field [0001] The invention relates to a water-based environment-friendly rust-removing and anti-rust coating solution and a production process thereof, which can be applied to the maintenance and maintenance of steel structures, cast iron pipe fittings, chemical equipment, bridges and other iron and steel equipment. Background technique [0002] The consumption of coatings in industrial anticorrosion is second only to architectural coatings, with many varieties, wide application fields, high technical content and high price. From 2008 to 2014, my country's coating output maintained a steady growth trend, and in 2011, the annual output of coatings exceeded 10 million tons. In 2014, the output of coatings reached 16.4819 million tons, a year-on-year increase of 26.46%. The sales revenue of the coatings industry reached 386.759 billion yuan, and the entire industry showed a trend of rapid growth. According to forecasts, in the next 5-10 years, the market demand of Ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/08C09D5/08C09D7/12
CPCC09D5/08C09D7/40C09D127/08
Inventor 葛亮朱鹏林哲国陆崴
Owner NANTONG REPAIR AIR CHEM BIOENG
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