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Environmentally-friendly ocean antifouling paint based on self-polishing polymer/butenolide and derivatives thereof

A butenolide and marine antifouling technology, which is applied in antifouling/underwater coatings, rosin coatings, paints containing biocides, etc., can solve the problems of short antifouling period and inability to be applied, and achieve antifouling Effect of dirty time improvement

Inactive Publication Date: 2017-05-24
THE HONG KONG UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although a variety of environmentally friendly antifouling agents have been screened out, which can also achieve effectiveness, broad spectrum and low toxicity in the laboratory, they cannot be used in marine experiments because the antifouling period is too short.

Method used

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  • Environmentally-friendly ocean antifouling paint based on self-polishing polymer/butenolide and derivatives thereof
  • Environmentally-friendly ocean antifouling paint based on self-polishing polymer/butenolide and derivatives thereof
  • Environmentally-friendly ocean antifouling paint based on self-polishing polymer/butenolide and derivatives thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Stir and mix 95g of zinc acrylate polymer, 5g of butenolide and 20g of xylene to make an antifouling coating. According to GB / T5370-2007 "Test Method for Shallow Sea Immersion of Antifouling Paint Samples", it was conducted in Hong Kong from February 2015 to October 2015. The shallow sea hanging plate experiment was carried out in the sea area, and the results are as follows figure 1 shown. The photo of the hanging board in the picture shows that the sample has no growth of marine organisms for 8 months, indicating that the antifouling coating prepared based on the antifouling agent has good antifouling. The photo of the hanging board in the picture shows that the sample has no growth of marine life for 8 months.

[0038] The zinc acrylate self-polishing polymer of the present invention has a good butenolide release rate. figure 2 For the comparison of the release rate curves, for non-reactive polymers such as methyl methacrylate, butenolide is basically no longer rel...

Embodiment 2

[0040] Stir and mix 35g zinc acrylate polymer, 10g butenolide, 10g zinc oxide, 2g iron oxide red and 20g xylene to make an antifouling coating, and form a film on the epoxy resin board by brushing. During the period from 2015.2 to 2015.10, the shallow sea hanging plate experiment was carried out in Hong Kong waters, and the results are as follows image 3 shown. The picture of the hanging board in the picture shows that the sample has no marine growth for 8 months.

Embodiment 3

[0042] Stir and mix 15g of silyl acrylate polymer, 5g of butenolide, 20g of cuprous oxide, 8g of zinc oxide, 2g of iron oxide red and 20g of methyl ethyl ketone to make an antifouling coating. The film was formed on the board, and the shallow sea hanging board experiment was carried out in Hong Kong waters from 2015.2 to 2015.10. The results are as follows Figure 4 shown. The picture of the hanging board in the picture shows that the sample has no marine growth for 8 months.

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Abstract

The invention discloses a preparation method and application of an environmentally-friendly ocean antifouling paint based on self-polishing polymer / butenolide and derivatives thereof. Controlled release of an environmentally-friendly anti-fouling agent in the paint serves as the main line, the used polymer is self-polishing polymer which can achieve self-refreshing through side group hydrolysis-polymer ablation in the ocean environment, and the fact that the anti-fouling agent can be released continuously and constantly. The used anti-fouling agent is prepared through artificial synthesis by referring to the chemical structure of marine streptomyces metabolite, and the problem that the natural anti-fouling agent has low content in living bodies, and is complex in extraction process and low in yield is overcome. Especially, the anti-fouling agent has short half-life period in the ocean and can be degraded easily, and can be degraded into non-toxic compounds quickly after being released to seawater, and is not accumulated in the living bodies. The problems that the conventional anti-fouling agent pollutes the environment and destroys the marine ecological balance and the like are overcome. The environmentally-friendly ocean antifouling paint based on self-polishing polymer / butenolide and derivatives thereof has significant application prospects in the field of environmentally-friendly ocean antifouling paint.

Description

technical field [0001] The present invention relates to a marine antifouling coating, in particular to a preparation method and application of an environmentally friendly marine antifouling coating based on self-polishing polymer / butenolide and its derivatives; the application is mainly marine antifouling The field of coating technology. Background technique [0002] Marine fouling refers to the biofouling formed by the adsorption and growth of marine microorganisms, animals and plants on the surface of the hull or marine facilities, which brings many adverse effects to marine shipping and the exploration, development and utilization of marine resources. 。 According to incomplete statistics, the economic loss caused by marine biofouling in the world reaches tens of billions of dollars every year. Marine biofouling has become one of the technical bottlenecks restricting the development of marine economy and maintaining the safety of coastal defense, and it is an urgent probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/02C09D5/16C09D7/12C09D143/04
CPCC09D133/02C08K3/22C08K5/20C08K2003/2248C08K2003/2272C08K2003/2296C08L2205/025C09D5/1625C09D5/165C09D5/1662C09D7/61C09D143/04C09D193/04C08L93/04C08L33/02
Inventor 钱培元马春风李泳新
Owner THE HONG KONG UNIV OF SCI & TECH
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