A kind of high anti-corrosion coating prepared with loaded nano-silica hyperbranched fluororesin

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, easy repair effect

Active Publication Date: 2016-03-09
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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  • A kind of high anti-corrosion coating prepared with loaded nano-silica hyperbranched fluororesin
  • A kind of high anti-corrosion coating prepared with loaded nano-silica hyperbranched fluororesin
  • A kind of high anti-corrosion coating prepared with loaded nano-silica hyperbranched fluororesin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The distribution ratio of each component in this embodiment: it is formed by mixing 800kg of component A and 100kg of component B;

[0043]Composition of component A: 440kg of nano-silica-loaded hyperbranched fluororesin, BYK-1638kg of wetting and dispersing agent, 240kg of rutile titanium dioxide, mixed solvent (mixed with butyl acetate and propylene glycol methyl ether acetate, among which, The mass ratio of butyl acetate to propylene glycol methyl ether acetate is 4:1) 99.2kg, leveling agent BYK-3334kg, catalyst 1%T-120.8kg;

[0044] Composition of component B: Bayer N-7550kg, Bayer N-339050kg.

[0045] The preparation method comprises the following steps:

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

...

Embodiment 2

[0052] The distribution ratio of each component in this embodiment: it is formed by mixing 1100kg of component A and 100kg of component B;

[0053] Composition of component A: 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 (a mixture of leveling agent BYK-333 and EFKA-3777 with a mass ratio of 2:1) 3.3kg, catalyst stannous octoate 0.22kg;

[0054] Composition of component B: Bayer N-3390100kg.

[0055] The preparation method comprises the following steps:

[0056] 1) Add 660kg of nano-silica loaded hyperbranched fluororesin, 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 glyco...

Embodiment 3

[0062] The distribution ratio of each component in this embodiment: it is formed by mixing 900kg of component A and 100kg of component B;

[0063] Composition of component A: 630kg of nano-silica loaded hyperbranched fluororesin, BYK-1044.5kg of wetting and dispersing agent, 180.3kg of rutile titanium dioxide, a mixture of butyl acetate and propylene glycol methyl ether acetate with a mass ratio of 2:1 Solvent 84.42kg, 0.9kg leveling agent EFKA-3777, 0.18kg catalyst 1%T-12;

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

[0065] The preparation method comprises the following steps:

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

[0067] 2) Pre-disperse the composition obtained in step 1), and grind it t...

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Abstract

A high anti-corrosion coating prepared by loading nano silicon dioxide hyperbranched fluororesin. The coating is composed of component A and component B mixed at a mass ratio of 8 to 11:1; component A is composed of main raw materials loaded with nano-silica hyperbranched fluororesin and auxiliary materials mixed solvent, leveling agent, catalyst, pigment The filler is mixed; the second component is one of HDI biuret, HDI trimer or their mixture. The coating of the invention has excellent performances such as weather resistance, seawater immersion resistance, heat and humidity resistance, temperature change resistance, salt spray resistance and stain resistance, and can resist corrosion of marine environment for a long time, and the life of the coating film after one coating can reach more than 25 years. The preparation method of the high anticorrosion paint of the invention has simple operation and low 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 Patents(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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