A kind of environment-friendly organic-inorganic hybrid aluminum alloy primer and preparation method thereof

An environmentally friendly, aluminum alloy technology, applied in the direction of metal material coating process, etc., can solve the problem of no chromate-free conversion coating or primer, etc., to improve workability and storage, good environmental performance, improve The effect of overall performance

Active Publication Date: 2017-02-01
青岛乐化科技有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, all of these anti-corrosion pigments are somewhat water-soluble, so there is still no fully satisfactory chromate-free conversion coating or primer to improve the adhesion of polymer coatings on aluminum alloy substrates and corrosion resistance

Method used

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  • A kind of environment-friendly organic-inorganic hybrid aluminum alloy primer and preparation method thereof
  • A kind of environment-friendly organic-inorganic hybrid aluminum alloy primer and preparation method thereof
  • A kind of environment-friendly organic-inorganic hybrid aluminum alloy primer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Weigh each component according to the following mass percentages:

[0032]

[0033] The above-mentioned ethyl orthosilicate is ethyl silicate-40 from Jiangsu Changyu Chemical Co., Ltd.; ethanol, isopropanol and n-butanol are commercially available industrial grade products; hydrochloric acid is from Tianjin Kemiou Chemical Reagent Co., Ltd. Analytical pure hydrochloric acid reagent, HCl content is 36% ~ 38%; silane coupling agent is γ-aminopropyltriethoxysilane (γ-APS) Z-6011 from Dow Corning; triethylamine is from Tianjin Guangcheng Chemical Reagent Co., Ltd. The company's analytical reagents; polyvinyl butyral is WACKER's BN18.

[0034] Its preparation method is as follows:

[0035] Step 1: Put tetraethyl orthosilicate and 80% by mass (ethanol, isopropanol and n-butanol) mixed solvent into a reaction tank, stir evenly, heat to 60° C. in a water bath, and continue to stir rapidly. Add hydrochloric acid into distilled water and mix evenly to obtain hydrochloric aci...

Embodiment 2

[0043] Weigh each component according to the following mass percentages:

[0044]

[0045] The above-mentioned ethyl orthosilicate is ethyl silicate-32 from Jiangsu Changyu Chemical Co., Ltd.; ethanol, isopropanol and n-butanol are commercially available industrial grade products; hydrochloric acid is from Tianjin Kemiou Chemical Reagent Co., Ltd. Analytical pure hydrochloric acid reagent, HCl content is 36% ~ 38%; silane coupling agent is aminosilane KH550 of Nanjing Nengde Chemical; triethylamine is analytical reagent of Tianjin Guangcheng Chemical Reagent Co., Ltd.; polyvinyl butyral It is BL18 of WACKER company.

[0046] The preparation method is the same as in Example 1.

Embodiment 3

[0048] Weigh each component according to the following mass percentages:

[0049]

[0050]

[0051] The above-mentioned ethyl orthosilicate is ethyl silicate-40 from Jiangsu Changyu Chemical Co., Ltd.; ethanol, isopropanol and n-butanol are commercially available industrial grade products; hydrochloric acid is from Tianjin Kemiou Chemical Reagent Co., Ltd. Analytical pure hydrochloric acid reagent, the HCl content is 36% to 38%; the silane coupling agent is Dow Corning’s γ-aminopropyl triethoxysilane (γ-APS) Z-6011; triethylamine is Tianjin Guangcheng Chemical Reagent Co., Ltd. The company's analytical reagents; polyvinyl butyral is WACKER's BN18.

[0052] The preparation method is the same as in Example 1.

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Abstract

The invention discloses an environment-friendly organic-inorganic hybrid aluminum alloy primer which is prepared from the following components in percentage by mass: 35-45% of tetraethoxysilane, 35-45% of ethanol, 3-5% of isopropyl alcohol, 8-10% of n-butyl alcohol, 2-3% of distilled water, 0.4-0.6% of hydrochloric acid, 0.5-1.0% of a silane coupling agent, 0.2-0.8% of triethylamine and 1-2% of polyvinyl butyral. The environment-friendly organic-inorganic hybrid aluminum alloy primer disclosed by the invention has good environmental protection performance; and without heavy metal pigments and benzene solvents such as lead and chromium causing huge harm to people and environment, the final paint composition and coating are composition and coating without chromium, lead and benzene paint and do not cause harm to the operating personnel and environment.

Description

technical field [0001] The invention relates to an aluminum alloy primer, in particular to a single-component self-drying environment-friendly organic-inorganic hybrid aluminum alloy primer, which belongs to the technical field of anti-corrosion coatings. Background technique [0002] Aluminum alloy has low density, but relatively high strength, which is close to or exceeds high-quality steel. It has good plasticity and can be processed into various profiles. It has excellent electrical conductivity, thermal conductivity and corrosion resistance. It is used in aviation, aerospace, automobiles, machinery manufacturing, and ships It has been widely used in the chemical industry and the chemical industry, and its usage is second only to steel. The welding of aluminum alloy instead of steel plate material can reduce the structural weight by more than 50%. The fuselage, skin, compressor, etc. of the aircraft are often made of aluminum alloy to reduce the weight. Although alumin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/56
Inventor 王兆安曹绪梅姜显华
Owner 青岛乐化科技有限公司
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