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Preparation method of low-surface energy fluorinated polysiloxane modified acrylic acid anti-fouling resin and product

A fluorosilicon modified, antifouling resin technology, used in antifouling/underwater coatings, biocide-containing paints, coatings, etc., can solve the problems of low resin solid content, environmental pollution, complex synthesis steps, etc. The effect of low elastic modulus, reduced coating cost, and simple synthesis method

Active Publication Date: 2012-05-02
上海华晖新材料科技宿迁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resin synthesis steps are complicated, the resin solid content is low, and the coating process will cause great pollution to the environment

Method used

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  • Preparation method of low-surface energy fluorinated polysiloxane modified acrylic acid anti-fouling resin and product
  • Preparation method of low-surface energy fluorinated polysiloxane modified acrylic acid anti-fouling resin and product
  • Preparation method of low-surface energy fluorinated polysiloxane modified acrylic acid anti-fouling resin and product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: the preparation method of a kind of low surface energy fluorine silicon modified acrylic acid antifouling resin of the present invention, it comprises the following steps: by weight percentage,

[0041] (1) Prepare 5-30% of the first mixed solution comprising butyl acetate and xylene; wherein the mass fraction of butyl acetate in the first mixed solution is 30-70%;

[0042](2) Add 5-30% of the first mixed solution and 5-30% of silicone oil as a solvent in a four-necked flask equipped with a mechanical stirrer, a constant pressure dropping funnel and a thermometer;

[0043] (3) Prepare a second mixed solution comprising acrylate monomers and acrylate functional monomers, and dissolve the initiator in the second mixed solution, the second mixed solution is composed of methyl methacrylate 20-50 %, 10-20% of butyl acrylate, 3-20% of the mixed solution of fluorine-containing (meth)acrylate monomer and silicon-containing (meth)acrylate monomer, 3-10% of hydroxye...

Embodiment 2

[0067] Embodiment 2: the preparation method of a kind of low surface energy fluorine silicon modified acrylic acid antifouling resin of the present invention, it comprises the following steps: calculate by weight percentage,

[0068] (1) Prepare 5-30% of the first mixed solution comprising butyl acetate and xylene;

[0069] (2) Add 5-30% of the first mixed solution and 5-30% of silicone oil as a solvent in a four-necked flask equipped with a mechanical stirrer, a constant pressure dropping funnel and a thermometer;

[0070] (3) Prepare a second mixed solution comprising acrylate monomers and acrylate functional monomers, and dissolve the initiator in the second mixed solution, the second mixed solution is composed of methyl methacrylate 20-50 %, 10-20% of butyl acrylate, 3-20% of the mixed solution of fluorine-containing (meth)acrylate monomer and silicon-containing (meth)acrylate monomer, 3-10% of hydroxyethyl methacrylate and Initiator 0.5-5%;

[0071] (4) The solvent in s...

Embodiment 3

[0094] The method of present embodiment 3 is basically the same as resin and embodiment 1 or 2, and its difference is that the raw material composition and weight percent of this resin are:

[0095]

[0096] Specifically, add 10 grams of butyl acetate, 11 grams of xylene, and 60 grams of simethicone into a four-necked flask equipped with a stirrer, a constant-pressure dropping funnel, and a thermometer, raise the temperature to 80°C, and then weigh the butyl acrylate 44 grams of methyl methacrylate, 48 grams of methyl methacrylate, 8 grams of trifluoroheptyl methacrylate, 5 grams of silicon-containing (meth)acrylate, 13 grams of hydroxyethyl methacrylate, 1 azobisisobutyronitrile gram, through the constant pressure dropping funnel with a constant rate of 2 to 4 hours to complete the dropwise. After continuing to keep warm for 8 hours, stop to obtain fluorosilicone modified acrylic antifouling resin.

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Abstract

The invention discloses a preparation method of a low-surface energy fluorinated polysiloxane modified acrylic acid anti-fouling resin. The preparation method comprises the following steps of: counted by weight percentage, adding 5-30 percent of first mixed solution containing butyl acetate and dimethyl benzene and 5-30 percent of silicone soil as solvents into a flask; preparing a second mixed solution containing an acrylate monomer and an acrylic ester functional monomer and enabling an initiator to be dissolved in the second mixed solution, wherein the second mixed solution consists of 20-50 percent of methyl methacrylate, 10-20 percent of butyl acrylate, 3-20 percent of mixed solution of fluorine (methyl)-containing acrylic ester monomer and silicon-containing (methyl) acrylic ester monomer, 3-10 percent of hydroxyethyl methacrylate and 0.5-5 percent of initiator; raising the temperature of the solvent to be 60-100DEG C; slowly dropping the second mixed solution in which the initiator is dissolved into the solvent and stirring at constant speed; and after dropping, enabling the solvent to be maintained at the constant temperature for 2-20 hours and obtaining the low-surface energy fluorinated polysiloxane modified acrylic acid anti-fouling resin. The invention also provides the resin prepared by adopting the method.

Description

technical field [0001] The invention relates to the field of marine antifouling coatings, in particular to a method for preparing a low-surface-energy fluorosilicon-modified acrylic antifouling resin and the fluorosilicon-modified acrylic antifouling resin prepared by the preparation method. When the resin is synthesized, The silicone oil with antifouling effect is used as a solvent, and the prepared resin has the characteristics of low surface energy and low elastic modulus. Background technique [0002] The fouling of marine life has always been a major issue facing the world. Marine fouling involves ocean shipping, buoys, offshore oil operating platforms, coastal facilities, and submarine cables. Among them, the fouling of marine organisms has caused huge losses to the marine shipping industry. According to statistics, when the area of ​​marine biofouling on the bottom of the ship reaches 5%, the increased fuel oil for shipping will increase by about 10%, and the risk of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/28C08F220/22C08F230/08C09D133/12C09D5/16
Inventor 施利毅孙小英杭建忠苏友权金鹿江
Owner 上海华晖新材料科技宿迁有限公司
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