Dimethyl silicone polymer marine antifouling paint containing sodium benzoate

A polydimethylsiloxane and dimethylsiloxane technology, which is applied in the field of polydimethylsiloxane marine antifouling coatings, can solve the problems of destroying the metabolic process, acidification, affecting the pH value of cell membranes, etc.

Inactive Publication Date: 2010-02-24
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that benzoic acid can affect the ability of cell membranes to maintain a proper pH, causing acidification of cells and disrupting metabolic processes

Method used

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Experimental program
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Embodiment Construction

[0008] The massfraction containing sodium benzoate in the polydimethylsiloxane silicone resin prepared by the present invention is respectively 1%, 1.5%, 2%, with the massfraction of sodium benzoate in polydimethylsiloxane being 2%. Example, because the solubility of sodium benzoate in most organic solvents is not high, so earlier certain (according to the different mass fractions of sodium benzoate in polydimethylsiloxane silicone resin) sodium benzoate (such as 0.5 grams) Add in an appropriate amount (5 milliliters) of deionized water, stir magnetically for 3 hours, then gradually add (3 milliliters) organic solvent acetone or toluene, or methyl cyanide, continue magnetic stirring for 3 hours, and ultrasonically shake for 1 hour; The mixed solution obtained is slowly added to an appropriate amount (25 grams) of polydimethylsiloxane, and after magnetic stirring is uniform, the mixture is placed in the fume hood for two days to facilitate the volatilization of organic solvents ...

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Abstract

The invention discloses a dimethyl silicone polymer marine antifouling paint containing sodium benzoate, which relates to an antifouling paint containing the sodium benzoate, wherein the sodium benzoate is needed to be added into a dimethyl silicone polymer silicone resin matrix to prepare the antifouling paint. The dimethyl silicone polymer marine antifouling paint adopts the sodium benzoate, a dimethyl silicone polymer silicone resin, an organic solvent, deionized water and a curing agent, and is characterized by being prepared through the following steps: firstly, according to the mass percentage of the sodium benzoate in the dimethyl silicone polymer silicone resin, adding the sodium benzoate in the mass ratio of 10 percent into the deionized water, and performing magnetic stirring onthe mixture for 3 hours; secondly, gradually dropping the organic solvent of acetone, methylbenzene or acetonitrile into the mixture in the ratio of the organic solvent to the water of 3:5, continuously stirring the mixture for 3 hours, and performing ultrasonic vibration on the mixture for 1 hour; thirdly, slowly adding the obtained mixed solution into dimethyl silicone polymer, and placing the mixture which is stirred evenly through magnetic stirring into a ventilating cabinet for two days for volatilizing the organic solvent; and finally, adding the dimethyl silicone polymer curing agent into the mixture in the ratio of 1:10, and evenly mixing the mixture.

Description

technical field [0001] The present invention relates to polydimethylsiloxane marine antifouling paint containing sodium benzoate. Background technique [0002] The antifouling coatings originally used on ships mainly use toxic release antifouling as the main technical method. Through the releasable copper, tin, mercury, lead and other heavy metal antifouling agents in the coating, marine plant spores and spores are formed around the material. Marine animal larvae have a toxic material concentration layer that kills them, so as to achieve the antifouling effect. However, the poisonous antifouling agents of this type are very serious. Even a few parts per ten billion of organic tin is enough to deform some marine organisms, inhibit their reproduction, and is not suitable for consumption. After the 1970s, with the prohibition of antifouling agents such as mercury and arsenic, organotin compounds became representative antifouling agents. In the 1980s, it was discovered that or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/14C09D5/16C09D7/12
Inventor 史航王鲁民陈晓蕾
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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