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Fluorine-containing self-polishing resin-based ultra-smooth coating material preparation method

A self-polishing resin, coating material technology, applied in coatings, biocide-containing paints, antifouling/underwater coatings, etc., can solve the problems of limited application, time-consuming, complex coating preparation process, etc. The method is simple and the effect of ensuring the exudation rate

Active Publication Date: 2019-12-31
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 3. The coating preparation process involves high-temperature curing, pore-forming agent and other steps. The coating preparation process is complex and time-consuming
The above three deficiencies limit its application in the field of antifouling to a certain extent.

Method used

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  • Fluorine-containing self-polishing resin-based ultra-smooth coating material preparation method
  • Fluorine-containing self-polishing resin-based ultra-smooth coating material preparation method
  • Fluorine-containing self-polishing resin-based ultra-smooth coating material preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] a. Preparation of resin matrix: Add a mixed solution of 20g hexafluorobutyl methacrylate, 40g methacrylic acid, 10g methyl methacrylate and 25g butyl acrylate dropwise to 120g xylene at 80°C, dropwise The time is 6 hours. After the dropwise addition is completed, a mixed solution of 1g benzoyl peroxide and 20g xylene is subsequently added dropwise. The dropwise addition time is 30min. After the dropwise addition is completed, the reaction is continued for 90min to obtain a fluorine-containing acrylic resin (product a) .

[0057] b. add 100g fluorine-containing acrylic resin (product a) and 9.8g pyridine triphenylborane in 75g dimethylbenzene, heat to 90 ℃ and react for 4 hours, obtain acid value at 100mgKOH / g Acrylic fluorine boron resin (product b).

[0058] c. Wipe the glass slide with absolute ethanol to remove surface oil and other impurities. After air drying at 80°C, soak in 20mL of 5% by volume ethanol solution containing fluorine-containing silane coupling agen...

Embodiment 2

[0064] The addition of perfluoropolyether lubricating oil is 0.6g, the quality of acrylic acid acrylic boron resin (product b) is 19.4g, and all the other methods are unchanged, as shown in Example 1.

[0065] Self-polishing rate: 0.6mg m -2 d -1

[0066] The attachment rate of Nitzschia microcrescens: 2.0%.

Embodiment 3

[0068] The addition of perfluoropolyether lubricating oil is 1g, the quality of acrylic acid acrylic boron resin (product b) is 19g, and all the other methods are unchanged, as shown in Example 1.

[0069] Self-polishing rate: 0.5mg m -2 d -1

[0070] The attachment rate of Nitzschia microcrescens: 1.6%.

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Abstract

The invention provides a fluorine-containing self-polishing resin-based ultra-smooth coating material preparation method, which comprises: 1, carrying out a reaction on a fluorine-containing acrylatemonomer, a carboxyl-containing acrylic acid monomer, methyl methacrylate and ethyl acrylate according to a total weight ratio of 5-45:10-55:5-15:10-30 at a temperature of 80 DEG C for 6 h to synthesize a resin matrix; and 2, carrying out a reaction on the obtained resin matrix and pyridine triphenylborane according to a weight ratio of 70-90:5-30 for 4 h at a temperature of 90 DEG C. According tothe invention, based on the self-polishing effect of the resin matrix, the distance between the lubricating oil seeping and the surface of the coating is not increased so as to ensure the constant seeping speed of the lubricating oil; after the lubricating oil in the coating is used up, the coating resin matrix can still prevent fouling organisms from being attached to the substrate through the self-polishing effect; and the prepared coating solves the problem of coating failure caused by easy loss of the lubricating oil, and is an environmentally-friendly long-acting antifouling coating.

Description

technical field [0001] The invention relates to a method for preparing an antifouling coating, in particular to a method for preparing a self-polishing resin-based super-slip coating. Background technique [0002] The existence of marine fouling has brought great inconvenience to people in the development of marine resources and military activities at sea. Due to its unique oil layer protection effect, the ultra-slip coating can effectively prevent the adhesion of fouling organisms on the coating surface, reducing the harm caused by fouling organisms. [0003] However, the coating failure caused by the easy loss of lubricating oil is a common problem in super slippery coatings. Water erosion, external force damage, high temperature, and ultraviolet radiation will all lead to rapid loss of lubricating fluid. Once the lubricating fluid is lost, the pore structure on the surface of the super-slip coating will provide attachment points for fouling organisms, thereby acceleratin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/16C09D5/16C09D7/65C08F8/42C08F220/06C08F220/24C08F220/14C08F220/18
CPCC08F8/42C09D5/1662C09D5/1687C09D133/16C08L71/00
Inventor 王君李亚坤陈蓉蓉张宏森刘琦于静刘婧媛宋大雷
Owner HARBIN ENG UNIV