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A kind of antifouling coating composition and its preparation and application in low surface energy antifouling paint

A composition and coating technology, applied in the direction of coating, etc., can solve the problems of poor antifouling effect, poor adhesion, low surface energy and hydrophilicity, and achieve good antifouling effect

Active Publication Date: 2018-05-11
SHANGHAI HUAYI FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of the existing low surface energy coating technology such as poor antifouling effect and poor adhesion of the static method, and to provide an antifouling coating composition, which has low surface energy It can be used in the field of marine antifouling coatings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment A

[0026] Add 500g octamethylcyclotetrasiloxane, 2.5g potassium hydroxide, 10g dimethyl sulfoxide, 10g hexamethyldisiloxane, 110.7 gamma-aminopropyltriethoxysilane in a 2000ml round bottom flask g, stirred and reacted at 110°C for 8 hours; added 144.2g of isooctanoic acid and 20g of N,N'-dicyclohexylcarbodiimide, then heated up to 130°C to react until the resin climbed the pole, and finally added 100g of butyl acetate to dilute.

Embodiment B

[0029] Add 500g of octamethylcyclotetrasiloxane, 2.5g of potassium hydroxide, 10g of dimethylsulfoxide, 10g of hexamethyldisiloxane, γ-aminopropyltriethoxysilane in a 2000ml round bottom flask 110.7g, stirred and reacted at 110°C for 8h; added 82g of glutaric acid, then heated up to 130°C to react until the resin climbed the pole, and finally added 100g of butyl acetate to dilute.

Embodiment 3

[0031] Organopolysiloxane Polymer Synthesis Example C

[0032] Add 500g of octamethylcyclotetrasiloxane, 2.5g of potassium hydroxide, 10g of dimethylsulfoxide, 10g of hexamethyldisiloxane, γ-aminopropyltriethoxysilane in a 2000ml round bottom flask 110.7g, stirred and reacted at 110°C for 8h; added 61.6g of maleic anhydride, then heated up to 130°C to react until the resin climbed the pole, and finally added 100g of butyl acetate to dilute.

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PUM

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Abstract

The invention relates to an anti-pollution coating composition and preparation thereof and application to low surface energy antifouling paint. The coating composition comprises an organic polyorganosiloxane polymer. According to a synthetic formula, the anti-pollution coating composition comprises, by weight parts, 100 parts of octamethylcyclotetrasiloxane, 0.05-0.5 part of basic catalyst, 0.5-3 parts of accelerant, 5-100 parts of silane coupling agent, 0.5-3 parts of end capping agent, 0-0.5 part of dehydrating agent and 15-25 parts of butyl acetate, wherein the dosage of organic acid or acid anhydride is 0-200% the molar weight of the silane coupling agent. The anti-pollution coating composition comprises, by weight percentage, 10-70% of organic polyorganosiloxane polymer, 0.5-20% of pigment, 0.5-20% of filler and 5-40% of solvent. The anti-pollution coating composition has the advantages of having low surface energy performance and hydrophilia and can be widely utilized in the ocean anti-pollution coating filed.

Description

technical field [0001] The invention belongs to the field of marine antifouling paints, in particular the invention relates to an antifouling paint composition and its preparation and application in low surface energy antifouling paints. Background technique [0002] There are a large number of marine organisms in seawater, and these marine organisms will adhere to the surfaces of ships and structures that have been in the seawater environment for a long time. As a result, underwater facilities such as ships, pipelines, marine instruments, and aquatic cages are corroded or clogged severely, eventually causing huge economic losses. A variety of antifouling technologies have been studied, among which the application of antifouling coatings is an economical and efficient way to solve the problem of fouling. [0003] With the improvement of environmental protection requirements, organotin antifouling agents have been completely banned, and cuprous oxide antifouling agents are g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/26C08G77/06C09D183/08C09D7/61C09D7/63
CPCC08G77/06C08G77/26C08K3/22C08K3/34C08K3/36C08K13/02C08K2003/2272C09D7/61C09D183/08
Inventor 王娴娴许季海牟迪姚唯亮孙凌
Owner SHANGHAI HUAYI FINE CHEM CO LTD
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