A kind of marine biological antifouling paint and its preparation method and application

A technology for marine organisms and antifouling paints, applied to biocide-containing paints, antifouling/underwater paints, coatings, etc., can solve the problems of slow polymer solubility, environmental pollution, etc., and achieve long-term and wide application Prospects and economic value, the effect of preventing and controlling marine biofouling

Inactive Publication Date: 2011-12-28
THE FIRST INST OF OCEANOGRAPHY SOA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of antifouling coating can maintain slow polymer solubility, making the surface of the coating smooth, achieving the advantages of maintainin

Method used

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  • A kind of marine biological antifouling paint and its preparation method and application
  • A kind of marine biological antifouling paint and its preparation method and application
  • A kind of marine biological antifouling paint and its preparation method and application

Examples

Experimental program
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Example Embodiment

[0023] Example 1:

[0024] Add 1.5mol of dihydrocapsaicin (C 18 H 29 NO 3 ) Dissolved in 500ml anhydrous ether (C 4 H 10 O), then add 30ml of diethylamine (C 4 H 11 N) solution (alkaline catalyst), add 1 mol of methacryloyl chloride (C 4 H 5 OCl), then reflux and stir for 8 hours, distill off methacrylic acid chloride, ether and diethylamine under vacuum (0.1bar, 70℃), and then use a fractionating column under vacuum (0.1bar) to fractionate to collect 103~120 ℃ fraction to obtain dihydrocapsaicin methacrylate, the preparation process is as follows figure 2 Shown.

Example Embodiment

[0025] Example 2:

[0026] Add 1.5mol of capsaicin (C 18 H 27 NO 3 ) Is dissolved in 500ml of anhydrous ether, and 0.2mol of alkaline catalyst sodium bicarbonate (NaHCO 3 ), add 1 mol of methacryloyl chloride dropwise with stirring, then stir at reflux for 8 hours, distill off the methacryloyl chloride and ether under vacuum (0.1bar, 70℃), and then use a fractionating column in vacuum (0.1bar) Under fractional distillation, collect the fraction at 105~125℃ to obtain capsaicin methacrylate. The preparation process is as follows image 3 Shown.

Example Embodiment

[0027] Example 3

[0028] Dissolve 1.5 mol of capsaicin in 500 ml of anhydrous ether, add 0.2 mol of sodium bicarbonate powder, and add 1 mol of acryloyl chloride (C 3 H 3 OCl), then reflux and stir for 6 hours, distill off acryloyl chloride and ether under vacuum (0.1bar, 70℃), and then use fractionating column under vacuum (0.1bar) to collect fractions at 95~115℃ to obtain acrylic pepper The preparation process is like Figure 4 Shown.

[0029] 2. Synthesis of polyacrylic acid-capsaicin resin

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Abstract

The present invention relates to a marine organism anti-fouling paint and a preparing method and use thereof. The marine organism anti-fouling paint is polyacrylic-capsaicin resin, and the preparing method thereof comprises the steps of: performing esterification reaction for capsaicin compounds and acrylic acid or acrylic acid derivatives to obtain polyacrylic-capsaicin esters; and performing polymerization for the polyacrylic-capsaicin esters and acrylic ester compounds to obtain the polyacrylic-capsaicin resin. The method of the present invention directly performs chemical synthesis for natural organic-compounds with the functions of antimicrobial, sterilization and marine organism repelling action and the anti-fouling paint ground mass, then coats the prepared polyacrylic-capsaicin resin and the anti-fouling paint ground mass onto a body of a ship, after that, in the environment of seawater, the capsaicin in the resin can release slowly to restrain adhesion of the marine organism, thus the anti-fouling paint has the advantages of long aging, nontoxicity, green and environment protection, can be widely applied to prevention and cure for organism fouling, and has wide application prospects and economic values.

Description

technical field [0001] The invention belongs to the technical field of prevention and control of marine biological fouling, and in particular relates to a marine biological antifouling paint and its preparation method and application, that is, polyacrylic acid-capsaicin resin and its preparation method and application. Background technique [0002] In the historical process of developing and utilizing the ocean, human beings have always been faced with the problem of preventing and controlling marine organisms. The attachment of marine fouling organisms to the hull will increase the roughness of the bottom surface of the ship and increase the resistance of the ship's navigation, thereby reducing the speed of the ship and increasing fuel consumption. Over the years, a number of methods have been used to combat marine fouling organisms in addition to antifouling coatings, including the use of radioactive materials, ultrasonic technology, the use of predatory bacteria, electrol...

Claims

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Application Information

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IPC IPC(8): C09D133/12C09D133/02C09D133/10C09D5/16C08F220/14C08F220/36
CPCC09D133/02C08F220/36C08K5/0058C08F2220/302C09D5/1625C09D133/10C09D133/12C08F220/14C09D5/1668C09D5/16C08F220/302C08F220/1804
Inventor 陈颢张璇
Owner THE FIRST INST OF OCEANOGRAPHY SOA
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