Compound super-hydrophobic ocean antifouling paint as well as preparation method and application thereof

A marine anti-fouling and super-hydrophobic technology, applied in anti-fouling/underwater coatings, coatings, devices for coating liquids on surfaces, etc. ° and other problems, to achieve the effect of simple preparation process, excellent storage stability, and fewer synthesis steps

Inactive Publication Date: 2015-07-01
ZHEJIANG MARINE DEV RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Generally speaking, although the coatings listed above can effectively reduce the surface tension and increase the water contact angle to a certain extent, it is usually difficult to reach 150°, and the superhydrophobic surface cannot be obtained.
In addition, this type of coating is mostly prepared by physical blending method, which has poor stability and weather resistance.
More importantly, this type of low surface energy coating cannot truly imitate the nano- and micron-scale stepped microscopic roughness of the lotus leaf surface from the chemical structure.

Method used

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  • Compound super-hydrophobic ocean antifouling paint as well as preparation method and application thereof
  • Compound super-hydrophobic ocean antifouling paint as well as preparation method and application thereof
  • Compound super-hydrophobic ocean antifouling paint as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 1. Synthesis of linear acrylic resin

[0042] a. Synthesis of acryloxy polysiloxane I

[0043] In a three-necked flask equipped with a stirrer, a constant pressure dropping funnel, and a thermometer, 200 g of hydroxysilicone oil (average molecular weight is 400) was added, and then 221 g of γ-(methacryloyloxy)propyldimethylchlorosilane was weighed and passed through After the constant pressure dropping funnel was slowly added dropwise, the temperature was raised to 60° C. after stirring for 1 hour, and the temperature was maintained for 2 hours to obtain acryloxy polysiloxane I. Specifically, the acryloxy polysiloxane I was used at both ends Gamma-(methacryloyloxy)propyl and gamma-(methacryloyloxy)propylsilyl terminated polydimethylsilanes.

[0044] b. Synthesis of straight-chain acrylic resin

[0045] In a four-necked flask equipped with a stirrer, a reflux condenser, a constant-pressure dropping funnel, and a thermometer, add 50 g of xylene I, raise the temperature ...

Embodiment 2

[0052] 1. Synthesis of cross-linked acrylic resin

[0053] In a four-necked flask equipped with a stirrer, a reflux condenser, a constant pressure dropping funnel, and a thermometer, add 200 g of xylene, raise the temperature to 110 °C, and weigh 14 g of γ-(methacryloyloxy) propyl dimethyl methane. The mixed solution B of chlorosilane, 166 g methyl methacrylate, 26 g ethyl acrylate, 40 g n-butyl acrylate, and 4 g azobisisobutyronitrile I was added dropwise through a constant pressure dropping funnel over 3 hours After completion, 1 g of azobisisobutyronitrile II was added, and after continuing the reaction for 3 hours, the temperature was lowered to 60° C., and 22 g of hydroxy silicone oil (average molecular weight was 400) was added to obtain a cross-linked acrylic resin.

[0054] The general synthetic route such as image 3 As shown, the acrylic resin prepared in this example also has low surface energy.

[0055] 2. The preparation of the composite super-hydrophobic marine...

Embodiment 3

[0057] 1. Synthesis of comb-type low surface energy acrylic resin

[0058] a. Synthesis of acryloxy polysiloxane II

[0059] In a three-necked flask equipped with a stirrer, a constant pressure dropping funnel and a thermometer, add 290 g of trimethylsilane-terminated hydroxy silicone oil (average molecular weight is 580, measured by GPC), and then weigh 110 g of γ-(methacryloyloxy) propyl dimethyl chlorosilane was slowly added dropwise through a constant pressure dropping funnel, stirring was continued for 1 hour, and then the temperature was raised to 60° C. and kept for 2 hours to obtain acryloxy polysiloxane II, which was acryloxy polysiloxane II. Oxane II is specifically polydimethylsilane terminated at both ends with γ-(methacryloyloxy)propyl and trimethylsilyl groups, respectively.

[0060] b. Synthesis of comb-type acrylic resin

[0061] In a four-necked flask equipped with a stirrer, a reflux condenser, a constant pressure dropping funnel, and a thermometer, 50 g of...

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Abstract

The invention discloses a compound super-hydrophobic ocean antifouling paint which comprises the following components by weight: 170-200g of acrylic resin, 1-10g of silicon dioxide particles, 1-10 parts of cuprous oxide particles and 10-100 parts of n-butyl alcohol. The invention further discloses a preparation method and application method of the compound super-hydrophobic ocean antifouling paint. Compared with a market-oriented paint with low surface energy, the ocean antifouling paint is simple in preparation process, is synthesized by few steps and has obvious 'lotus leaf self-cleaning effect' and excellent storage stability.

Description

technical field [0001] The invention relates to a marine antifouling coating, in particular to a composite super-hydrophobic marine antifouling coating, the invention also relates to a preparation method of a composite super-hydrophobic marine antifouling coating, and the present invention also relates to the composite super-hydrophobic marine antifouling coating How to use marine antifouling coatings. Background technique [0002] Any facility that is exposed to seawater for a long time, such as the bottom of a boat, aquaculture cages, etc., is very easily adhered to its surface by various marine fouling organisms and grows and reproduces, causing great damage to appearance and function, and bringing huge economic loss. These marine fouling organisms include animals such as barnacles, polyps, and sea squirts, algae such as diatoms and green algae, and fungi such as bacteria and fungi. Once marine organisms attach to the bottom surface of the ship, it will cause serious ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/08C09D7/12C09D5/16C08F290/06B05D1/38B05D3/02
Inventor 胡建坤陆阿定徐珊孙保库郑斌
Owner ZHEJIANG MARINE DEV RES INST
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