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Method for preparing fluorine modified zinc acrylate antifouling resin

A technology of zinc acrylate and antifouling resin, applied in antifouling/underwater coatings, paints containing biocide, etc., can solve the problems of poor substrate adhesion, low surface free energy, etc., and achieve easy control of reaction parameters , the effect of reducing production costs

Inactive Publication Date: 2011-08-31
SHANGHAI UNIV
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Problems solved by technology

However, there are few reports on the combination of the two
[0004] At present, there are few research reports on self-polishing\low surface energy antifouling resins. Chinese patent CN101570587 discloses a fluorine-silicon modified acrylic copolymer resin and its preparation method. Chinese patent CN1958630 discloses a polyacrylate The preparation method and the f

Method used

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  • Method for preparing fluorine modified zinc acrylate antifouling resin
  • Method for preparing fluorine modified zinc acrylate antifouling resin

Examples

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Example Embodiment

[0018] Example 1

[0019] The preparation method of the fluorine-modified zinc acrylic antifouling resin of this embodiment includes the following process steps:

[0020] 1. Add 80g of propylene glycol methyl ether, 49.5g of zinc hydroxide into a four-necked flask equipped with a stirrer, reflux condenser, constant pressure dropping funnel, and thermometer, stir and heat to 80°C, and weigh 36g acrylic acid and 61g benzene. The mixture of formic acid and 130 g of propylene glycol methyl ether was dropped through a constant pressure dropping funnel for 2 hours at a constant rate, and stirring was continued for 1 hour to obtain a transparent and colorless solution of zinc-containing acrylic acid small molecule monomer.

[0021] The solid content of the colorless and transparent solution was measured to be 41%.

[0022] The structural formula of the prepared zinc-containing small molecule monomer can be expressed as follows:

[0023]

[0024] 2. Then add 30g of propylene glycol methyl e...

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Abstract

The invention relates to a method for preparing fluorine modified zinc acrylate antifouling resin with self-polishing and low surface energy properties. The method comprises the following steps of: preparing a zinc acrylate monomer from acrylic acid, benzoic acid and zinc hydroxide in molar ratio of 1 to 1 to 1 in the presence of a solvent; reacting components in the following percentage by weight: 10 to 20 percent by weight of zinc acrylate monomer, 4 to 10 percent by weight of fluorine-containing acrylate monomer, 5 to 20 percent by weight of acrylic hard monomer, 10 to 20 percent by weight of acrylic soft monomer, 1 to 5 percent by weight of initiator and 40 to 60 percent by weight of mixed solvent; and the fluorine modified zinc acrylate antifouling resin is produced by free radical polymerization. The technology belongs to the field of marine ship antifouling coatings. The consumption of an expensive fluorine-containing acrylate monomer in the fluorine modified zinc acrylate antifouling resin prepared by the method is only required to account for more than 4 percent by weight of all reactants, namely a contact angle of a resin coating reaches more than 98 degrees, so that the resin coating has the property of a low-surface-energy antifouling coating, and furthermore, production cost is reduced by 10 to 30 percent.

Description

technical field [0001] The invention relates to a preparation method of a fluorine-modified acrylic acid zinc antifouling resin with both self-polishing and low surface energy properties, and belongs to the field of marine ship antifouling coatings. Background technique [0002] The 21st century is the century for human beings to develop and utilize the ocean. The ocean-related transportation industry, mariculture industry, fishing industry, offshore mineral development industry, petrochemical industry and other industries are the most active parts of the world economy, and they will all have huge develop. However, various marine attached organisms, such as algae, hydra, mussels, oysters, barnacles, sea squirts, etc., are challenging humans all the time. They attach to the bottom of the ship and various underwater facilities, causing the speed of the ship to slow down. Slow speed, increased fuel costs, blockage of seawater pipelines and aquaculture cages, unbalanced underwa...

Claims

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Application Information

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IPC IPC(8): C08F220/30C08F220/18C08F220/22C08F220/14C09D133/14C09D5/16
Inventor 施利毅韩静孙小英杭建忠
Owner SHANGHAI UNIV
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