Transparent anti-fouling membrane preparation method

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

[0001] Technical field: [0002] 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. [0003] Background technique: [0004] 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 trans...

AI Technical Summary

Problems solved by technology

[0004] 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

[0005] 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