Preparation method of slow-release microcapsule antifouling material

A slow-release microcapsule and microcapsule technology, which is applied in the direction of microcapsule preparation, microsphere preparation, antifouling/underwater coating, etc., can solve the problems of easy falling off and no way to achieve sustained release

Pending Publication Date: 2020-10-30
深圳市奥祥龙环保材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: in view of the problem that most of the current antifouling agents are made of paint and applied on the bottom of the hul...

Method used

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  • Preparation method of slow-release microcapsule antifouling material

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Embodiment 1

[0031] In parts by weight, weigh 20 parts of capsaicin powder, 30 parts of gelatin, 30 parts of chitosan, 10 parts of acetic acid solution with a mass fraction of 10%, and 200 to 300 parts of deionized water, and add 1 / 2 of the gelatin to Stir in ionic water at a speed of 160r / min for 10min in a water bath at 50°C to obtain a gelatin solution. Add capsaicin powder into the gelatin solution, stir for 20min at a speed of 300r / min at room temperature, and place it in an ultrasonic disperser at a speed of 400W Ultrasonic dispersion with the power of 30 min to obtain a dispersion, add chitosan to the remaining 1 / 2 deionized water, and add acetic acid solution, stir at a speed of 250 r / min for 15 min in a water bath at 40 ° C, keep warm, and obtain chitosan acetic acid solution, slowly add the dispersion into the chitosan acetic acid solution at a rate of 60mL / min, place it in a high-shear emulsifier, and stir it at a speed of 8000r / min for 15min in a water bath at 40°C to obtain a m...

Embodiment 2

[0033] In parts by weight, weigh 25 parts of capsaicin powder, 35 parts of gelatin, 35 parts of chitosan, 13 parts of acetic acid solution with a mass fraction of 10%, and 250 parts of deionized water, and add the gelatin to 1 / 2 deionized water , stirred at 170r / min for 11min in a water bath at 55°C to obtain a gelatin solution, added capsaicin powder into the gelatin solution, stirred at 325r / min for 25min at room temperature, placed in an ultrasonic disperser with a power of 450W Ultrasonic dispersion for 35 minutes to obtain a dispersion, add chitosan to the remaining 1 / 2 deionized water, and add acetic acid solution, stir at a speed of 275 r / min for 17 minutes in a water bath at 45°C, keep warm to obtain chitosan acetic acid solution, Slowly add the dispersion into the chitosan acetic acid solution at a rate of 70mL / min, place it in a high-shear emulsifier, and stir it at a speed of 9000r / min in a water bath at 45°C for 17min to obtain a mixed solution. Insulate at 3°C ​​f...

Embodiment 3

[0035] In parts by weight, weigh 30 parts of capsaicin powder, 40 parts of gelatin, 40 parts of chitosan, 15 parts of acetic acid solution with a mass fraction of 10%, and 300 parts of deionized water, and add the gelatin to 1 / 2 deionized water , stirred at 180r / min for 12min in a water bath at 60°C to obtain a gelatin solution, added capsaicin powder into the gelatin solution, stirred at 350r / min for 30min at room temperature, placed in an ultrasonic disperser with a power of 500W Ultrasonic disperse for 40 minutes to obtain a dispersion, add chitosan to the remaining 1 / 2 deionized water, and add acetic acid solution, stir at 300 r / min for 20 minutes in a water bath at 50 ° C, keep warm to obtain chitosan acetic acid solution, Slowly add the dispersion into the chitosan acetic acid solution at a rate of 80mL / min, place it in a high-shear emulsifier, and stir it at a speed of 10000r / min for 20min in a water bath at 50°C to obtain a mixed solution, which is placed in Insulate a...

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Abstract

The invention relates to a preparation method of a slow-release microcapsule antifouling material, and belongs to the technical field of environment-friendly materials. The slow-release microcapsule antifouling material is prepared by adopting a complex coacervation method. According to the complex coacervation method, two wall materials with dissimilar charges in a solution are mutually cross-linked through electrostatic interaction among ions to obtain a microcapsule of a composite wall material, the action principle is that a positively charged wall material solution is mixed with another negatively charged wall material solution, coacervates are formed through interaction of positive charges and negative charges, separated and deposited around a core material, and the microcapsule is obtained by coating the core material. When the numbers of positive charges and negative charges carried by the two substances are equal, the yield of the microcapsule is the maximum. The preparation of the microcapsule by the complex coacervation method needs the three stages of wall film formation, deposition and cross-linking curing, the embedding rate of the core material is very high, the formed wall film is high in compactness and good in slow release effect, and the anti-fouling agent can be effectively prevented from falling off.

Description

technical field [0001] The invention relates to a preparation method of a slow-release microcapsule antifouling material, which belongs to the technical field of environmental protection materials. Background technique [0002] Ocean ships, submarine industrial equipment, submarines, etc. will cause the enrichment and growth of marine microorganisms, algae and molluscs after being exposed to seawater for a certain period of time. Marine biological pollution can increase the navigation resistance of marine vessels and submarines in seawater, shorten the life of the hull, and increase fuel consumption. Antifouling coatings are currently the most effective method for inhibiting marine organisms from fouling marine equipment. Efficient, environmentally friendly, and green antifouling technologies need to have the following characteristics: non-toxic to non-target fish and mammals; no accumulation in the food chain, degradable in the environment, low price, and long-term effect....

Claims

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Application Information

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IPC IPC(8): C09D107/02C09D193/04C09D189/00C09D5/16C09D7/63B01J13/10B01J13/14
CPCB01J13/10B01J13/14C08L2205/035C09D5/1625C09D5/1656C09D5/1687C09D107/02C08L93/04C08L89/005C08L89/00C08L5/08C08K13/06C08K9/10C08K5/053C08K5/098C08K5/1345C08K5/20
Inventor 龙小容
Owner 深圳市奥祥龙环保材料科技有限公司
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