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Pollution prevention microcapsules and preparation method and application thereof

A microcapsule and antifouling technology, which is applied in the direction of microcapsule preparation, microsphere preparation, antifouling/underwater coating, etc., can solve the complex process, antifouling microcapsule coating rate and antifouling performance need to be improved, reagents A wide range of drugs and other problems, to achieve the effect of excellent hydrophobic performance and antifouling performance

Inactive Publication Date: 2019-07-12
HAINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing synthesis process of antifouling microcapsules generally requires high temperature heating, complicated process and various reagents and drugs, and the coating rate and antifouling performance of the obtained antifouling microcapsules still need to be improved

Method used

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  • Pollution prevention microcapsules and preparation method and application thereof

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preparation example Construction

[0048] The present invention also provides a method for preparing the above-mentioned antifouling microcapsules, comprising the following steps:

[0049] Reacting the coagulation bath and the mixed solution at room temperature to obtain antifouling microcapsules;

[0050] The coagulation bath includes an isocyanate solution;

[0051] The mixed solution includes resin solution containing hydroxyl group, water-absorbing resin, silicone oil and antifouling agent.

[0052] The raw materials used in the preparation of antifouling microcapsules in the present invention are coagulation bath and mixed solution.

[0053]In the present invention, the coagulation bath includes an isocyanate solution. In an embodiment of the present invention, the isocyanates in the isocyanate solution include toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, hexamethylene diisocyanate and lysine One or more of acidic diisocyanates. The solv...

Embodiment 1

[0109] Weigh 6.2g of polyvinyl alcohol resin into 120g of ethyl acetate, stir and mix at 70°C for 40min to obtain a resin solution containing hydroxyl groups; then weigh 2.5g of simethicone, 3.0g of DCOIT and 5.0g of grafted propylene Add the amide to the resin solution containing hydroxyl groups, use a nano-sand mill at room temperature, and stir at 2000r / min at a high speed for 180min to obtain a mixed solution with a particle size of 1 μm; at the same time, mix 6g of toluene diisocyanate and 50g of ethyl acetate to obtain Coagulation bath (concentration of isocyanate solution is 10.7wt%); the mixed solution is added dropwise into the coagulation bath, reacted at room temperature for 35 minutes, suction filtered and dried to obtain antifouling microcapsules.

[0110] Mix antifouling microcapsules, epoxy polysiloxane resin, yellow-green energy storage fluorescent powder and toluene to prepare a bionic antifouling coating. In the bionic antifouling coating, the content of antif...

Embodiment 2

[0113] Weigh 5.6g of phenolic resin and add it to 100g of dimethyl sulfoxide, stir and react at 75°C for 35min to obtain a resin solution containing hydroxyl groups; then weigh 2.8g of hydroxyl silicone oil, 2.8g of tannic acid and 5.2g of high degree of substitution Add cross-linked carboxymethyl cellulose to the resin solution containing hydroxyl groups, use a nano sand mill at room temperature, and stir at a high speed of 2000r / min for 150min to obtain a mixed solution with a particle size of 1.5μm; at the same time, add 5g of isophorone Diisocyanate and 50g dimethyl sulfoxide are mixed to obtain a coagulation bath (the concentration of the isocyanate solution is 9.1wt%); the mixed liquid is added dropwise in the coagulation bath, reacted at room temperature for 26min, and after suction filtration and drying, the obtained Anti-fouling microcapsules.

[0114] Mix antifouling microcapsules, fluorine-modified polyester resin, rare earth long-lasting fluorescent powder and xyle...

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Abstract

The invention relates to the technical field of ocean pollution prevention and remediation, in particular to pollution prevention microcapsules and a preparation method and application thereof. The pollution prevention microcapsules include capsule cores and capsule walls, wherein the capsule walls coat the capsule cores; the capsule cores include water absorbing resin, silicone oil and a pollution prevention agent; the pollution prevention agent is selected from one or more of capsaicin, DCOIT, tannic acid, copper tannate, zinc tannate, nano-zinc oxide, nano-titanium oxide and nano-magnesiumoxide; the capsule walls are made of polyurethane resin. The capsule walls of the pollution prevention microcapsules can be hydrolyzed in water environment to release the capsule cores inside the capsule walls, and therefore pollution prevention of a water body is conducted. The pollution prevention microcapsules, fluorescent powder and resin matrixes cooperate to prepare bionic pollution prevention paint, therefore, the obtained bionic pollution prevention paint has excellent hydrophobicity and pollution prevention performance, attachment of bacteria, algae and protein is effectively inhibited, and bionic pollution prevention is achieved.

Description

technical field [0001] The invention relates to the technical field of marine antifouling and restoration, in particular to an antifouling microcapsule, its preparation method and application. Background technique [0002] Marine biofouling is one of the main bottlenecks restricting the deep development of marine resources. Fouling organisms in the ocean refer to the general term for animals, plants, and microorganisms that inhabit, attach, and grow on the bottom of ships, docks, buoys, and various artificial facilities, and have adverse effects on human economic activities. The attachment of these fouling organisms has a great harm to the marine engineering system around the world, causing large-scale economic losses worldwide: such as increasing the fuel consumption of ships and making sonar equipment unable to work; blocking seawater pipelines, increasing operating costs, etc.; It is a technical bottleneck restricting the development of marine economy and maintaining the...

Claims

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Application Information

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IPC IPC(8): C09D5/16B01J13/02
CPCC09D5/1606C09D5/1625C09D5/1618B01J13/02
Inventor 汪国庆郭泽慧姜宏
Owner HAINAN UNIVERSITY
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