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A kind of preparation method of transparent antifouling film

An anti-fouling and transparent technology, used in anti-fouling/underwater coatings, paints containing biocides, etc., can solve problems such as the insignificant effect of eliminating fouling organisms, the decline in the measurement accuracy of optical instruments, and the measurement accuracy not meeting the requirements, etc. Achieve the effect of low cost of raw materials, prolong the antifouling period and reduce the dissolution rate

Active Publication Date: 2018-06-29
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When underwater in-situ monitoring optical instruments are used in marine environments, the optical windows of their optical sensors and lighting systems are easily covered by biofilms in a short period of time, and marine organisms will gather on the biofilms to form macro-biological communities, causing serious The biological fouling of the optical instrument will lead to the decrease of the measurement accuracy of the optical instrument, and even cause the failure of the optical instrument. The transparent antifouling film for the window of the underwater optical instrument is developed to ensure the use effect of the underwater optical instrument and improve the antifouling of the transparent antifouling film. Duration is important for ocean exploration and monitoring
[0003] At present, the anti-fouling protection of the optical window of underwater instruments mainly adopts three methods: scraper-type mechanical anti-fouling system, copper cover anti-fouling and electrolysis of seawater to produce chlorine. Among them: the scraper-type mechanical anti-fouling system requires power The device provides power for it, the cost is high, and the effect of eliminating fouling organisms is not obvious; the anti-fouling of the copper cover will affect the optical path of the optical instrument, resulting in a measurement accuracy that does not meet the requirements; the electrolytic chlorine production to prevent fouling will corrode the window of the optical instrument , destroys the optical instrument, affects the light transmittance, and cannot guarantee the measurement accuracy; therefore, developing a transparent antifouling film preparation method that ensures measurement accuracy and long antifouling period, and realizes the antifouling effect on underwater optical instruments, has a Broad development prospects and application value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The process of the preparation method of the transparent antifouling film involved in this embodiment is as follows: under normal temperature and pressure conditions, disperse 0.05 g of hydrotalcite nanosheets in 9.8 g of distilled water for 30 minutes to obtain an aqueous solution of hydrotalcite, and then 0.2 g of polyethylene Alcohol was added to the hydrotalcite aqueous solution and heated to 80°C until the polyvinyl alcohol dissolved to form a mixed solution. The mixed solution was allowed to stand for natural cooling and then ultrasonically dispersed for 30 minutes. Then, a volume of 200 μL and a concentration of 2×10 -3 mol / L phenamide ethanol solution was dispersed by ultrasound for 30 minutes to obtain an antifouling solution. The antifouling solution was coated on the quartz surface by the spin coating method. After drying for 24 hours at normal temperature and pressure, the antifouling solution on the quartz surface formed a transparent antifouling solution. ...

Embodiment 2

[0017] The process of the preparation method of the transparent antifouling film involved in this example is as follows: under normal temperature and pressure conditions, disperse 0.01 g of hydrotalcite nanosheets in 9.7 g of distilled water for 30 minutes to obtain a hydrotalcite aqueous solution, and then 0.3 g of polyethylene Alcohol was added to the hydrotalcite aqueous solution and heated to 90°C until the polyvinyl alcohol dissolved to form a mixed solution. The mixed solution was allowed to stand for natural cooling and then ultrasonically dispersed for 30 minutes. Then, a volume of 200 μL and a concentration of 1×10 -3 mol / L phenamide ethanol solution was dispersed by ultrasound for 30 minutes to obtain an antifouling solution. The antifouling solution was coated on the quartz surface by a coating method. After drying for 24 hours at normal temperature and pressure, the antifouling solution on the quartz surface formed a transparent antifouling solution. film to realiz...

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Abstract

The invention belongs to the technical field of ocean engineering antifouling paint preparation, and particularly relates to a transparent anti-fouling membrane preparation method. The technological process comprises the steps that hydrotalcite nanosheets are dispersed in distilled water to obtain a hydrotalcite aqueous solution through ultrasound, polyvinyl alcohol is added into the hydrotalcite aqueous solution to be heated till polyvinyl alcohol is dissolved to form a mixed solution, standing is conducted on the mixed solution, the mixed solution is naturally cooled and then dispersed through ultrasound, phenolic amide antifoulant is added into the mixed solution, and an anti-fouling mixed solution is obtained through ultrasonic dispersion; the quartz surface is coated with the anti-fouling mixed solution through a spin-coating method or a coating method, and a transparent anti-fouling membrane is obtained after drying; the transparent anti-fouling membrane protects fouling of the parts such as detection shots, light sources and submarine windows of marine optical instruments. The molecular structure and preparation method of the transparent anti-fouling membrane are simple, the technology is scientific and reliable, the raw materials are low in cost and easy to obtain, the light transmittance is high, the antifouling activity is good, the effect is obvious, the application environment is friendly, and an important application prospect in the marine antifouling field is achieved.

Description

Technical field: [0001] The invention belongs to the technical field of preparation of marine engineering antifouling coatings, and in particular relates to a preparation method of a transparent antifouling film, which is used for the pollution protection of marine organisms in the marine environment, and realizes the detection of the detection lens, light source and seabed window of marine optical instruments. antifouling effect. Background technique: [0002] When underwater in-situ monitoring optical instruments are used in marine environments, the optical windows of their optical sensors and lighting systems are easily covered by biofilms in a short period of time, and marine organisms will gather on the biofilms to form macro-biological communities, causing serious The biological fouling of the optical instrument will lead to the decrease of the measurement accuracy of the optical instrument, and even cause the failure of the optical instrument. The transparent antifoul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D129/04C09D7/63C09D5/16
CPCC08K3/26C08K5/20C09D5/16C09D129/04
Inventor 孙智勇蔺存国郑纪勇
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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