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High-corrosion-resistant coating prepared from nano-silica loaded hyperbranched fluroresin

A technology of nano-silica and anti-corrosion coatings, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of suboptimal corrosion resistance and difficulty in surface protection with marine engineering equipment, and achieve marine resistance Excellent climate corrosion performance, low equipment cost, and simple operation

Active Publication Date: 2014-07-02
湘江涂料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fluorine resin in the nano-silica composite organosilicon-fluorine antifouling coating is not ideal in corrosion resistance and is difficult to be used for the protection of the surface of marine engineering equipment

Method used

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  • High-corrosion-resistant coating prepared from nano-silica loaded hyperbranched fluroresin
  • High-corrosion-resistant coating prepared from nano-silica loaded hyperbranched fluroresin
  • High-corrosion-resistant coating prepared from nano-silica loaded hyperbranched fluroresin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The distribution ratio of each group in this embodiment: a mixture of 800 kg of component A and 100 kg of component B;

[0043] The first component is composed of: loading nano-silica hyperbranched fluororesin 440kg, wetting and dispersing agent BYK-163 8kg, rutile titanium dioxide 240kg, mixed solvent (mixed with butyl acetate and propylene glycol methyl ether acetate, where , The mass ratio of butyl acetate and propylene glycol methyl ether acetate is 4:1) 99.2kg, leveling agent BYK-333 4kg, catalyst 1%T-12 0.8kg;

[0044] Component B composition: Bayer N-75 50kg, Bayer N-3390 50kg.

[0045] The preparation method includes the following steps:

[0046] 1) Add 440kg of nano-silica hyperbranched fluororesin and 8kg of wetting and dispersing agent BYK-163 into the container. After stirring, add 240kg of rutile titanium dioxide and 4:1 butyl acetate and propylene glycol methyl ether. 49.6kg of mixed solvent of acetate is stirred evenly;

[0047] 2) Pre-disperse the composition ob...

Embodiment 2

[0052] The distribution ratio of each group in this embodiment: a mixture of 1100 kg of component A and 100 kg of component B;

[0053] A component composition: load 660kg of nano-silica hyperbranched fluororesin, 22kg of wetting and dispersing agent EFKA-4050, 300.3kg of rutile titanium dioxide, a mixture of butyl acetate and propylene glycol methyl ether acetate with a mass ratio of 5:1 Solvent 114.18kg, leveling agent (mixture of leveling agent BYK-333 and EFKA-3777 with a mass ratio of 2:1) 3.3kg, catalyst stannous octoate 0.22kg;

[0054] B component composition: Bayer N-3390 100kg.

[0055] The preparation method includes the following steps:

[0056] 1) Add 660kg of nano-silica hyperbranched fluororesin and 22kg of wetting and dispersing agent EFKA-4050 into the container and stir evenly, then add 300.3kg of pigment and filler rutile titanium dioxide and acetic acid with a mass ratio of 5:1 57.09kg of mixed solvent of butyl ester and propylene glycol methyl ether acetate, full...

Embodiment 3

[0062] The distribution ratio of each group in this embodiment: a mixture of 900 kg of component A and 100 kg of component B;

[0063] A component composition: loaded with nano-silica hyperbranched fluororesin 630kg, wetting and dispersing agent BYK-104 4.5kg, rutile titanium dioxide 180.3kg, mass ratio of butyl acetate and propylene glycol methyl ether acetate 2:1 Mixed solvent 84.42kg, 0.9kg leveling agent EFKA-3777, 0.18kg catalyst 1% T-12;

[0064] B component composition: Bayer N-75 100kg.

[0065] The preparation method includes the following steps:

[0066] 1) Add 630kg of nano-silica hyperbranched fluororesin, 4.5kg of wetting and dispersing agent BYK-104 into the container, stir evenly, add 180kg of rutile titanium dioxide and 2:1 mass ratio of butyl acetate and propylene glycol methyl 42.21kg of mixed solvent of ether acetate is stirred evenly;

[0067] 2) Pre-disperse the composition obtained in step 1) and grind to a fineness ≤20μm;

[0068] 3) Add 0.9kg of leveling agent E...

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Abstract

The invention discloses a high-corrosion-resistant coating prepared from nano-silica loaded hyperbranched fluroresin. The coating is prepared by mixing a component A and a component B according to the mass ratio of (8-11):1, wherein the component A is formed by mixing a main material and auxiliary materials, the main material is nano-silica loaded hyperbranched fluroresin, and the auxiliary materials include a mixed solvent, a flatting agent, a catalyst, pigment and filler; the component B is one of a mixture of HDI (Hexamethylene Diisocyanate) biuret and HDI tripolymer. The coating disclosed by the invention has excellent performances such as weather resistance, seawater soaking resistance, damp and hot resistance, temperature change resistance, salt fog resistance, pollution resistance and the like and can resist to the corrosion of a marine environment for a long term; in addition, the service life of a film can be up to more than 25 years after the coating is coated. The preparation method of the high-corrosion-resistant coating disclosed by the invention is simple in operation and low in equipment cost.

Description

technical field [0001] The invention relates to a high anti-corrosion coating, in particular to a high anti-corrosion coating prepared by loading nano silicon dioxide hyperbranched fluororesin which is suitable for marine climate. Background technique [0002] Due to the high humidity in the marine climate, it is often accompanied by severe weather such as typhoons, high temperatures, and cold currents, and the corrosion environment is extremely harsh. Therefore, the protection requirements for steel structures such as marine engineering equipment are also very high. It is required that the coatings used should have good weather resistance. Water resistance, adhesion and anti-corrosion properties, and the paint film is hard, resistant to external shocks, high and low temperature changes, etc. [0003] At present, the protection of the surface of marine engineering equipment mainly relies on the formation of coatings to block the penetration of corrosive media, and the self-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/08C09D7/12
Inventor 周海斌杨恕人胡春文朱紫棠黄笑阳刘剑
Owner 湘江涂料科技有限公司
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