Preparation method of natural product anti-fouling agent

A technology of natural products and antifouling agents, applied in paints containing biocide, antifouling/underwater coatings, coatings, etc., can solve the problems of inconspicuous antifouling effect, secondary pollution, strong toxicity, etc., and achieve Long duration of antifouling, good antifouling effect and low cost

Inactive Publication Date: 2016-07-27
CHANGZHOU C PE PHOTO ELECTRICITY SCI & TECHN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problems mainly solved by the present invention: aiming at the problems that most of the marine antifouling agents contain heavy metals, have strong toxicity, easily cause secondary pollution to the marine environment, the antifouling effect is not obvious, and the antifouling duration is not long, providing A method for preparing a natural product antifouling agent. The invention extracts vertigo substances from jujube kernels, cypress kernels and Prunella vulgaris, then mixes and ferments red algae, pepper and vertigo substances, and explodes the substances after fermentation. Add ethanol for extraction, and finally grind and sieve the extract to obtain the natural product antifouling agent. The vertigo substance obtained by the present invention can achieve the vertigo effect on microorganisms by using jujube seed, cypress kernel and Prunella vulgaris. The antifouling agent obtained by compounding capsaicin extracted from pepper is green and environmentally friendly, has good antifouling effect, long antifouling duration, and is biodegradable, and will not cause secondary pollution to the marine environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] Firstly, according to the mass ratio of 3:2:2, weigh jujube kernels, cypress kernels, and Prunella vulgaris respectively and put them in an oven, dry them at 80°C for 2 hours, put them into a ball mill for grinding, pass through a 150-mesh standard sieve, and put the sieved Put the particles into a beaker, add a 3% sodium chloride solution to the beaker, the amount added is twice the mass of the particles, move the beaker to an induction cooker, set the power to 2000W, and heat for 40 minutes; after the above heating is completed, Increase the power to 2700W, continue heating for 2 hours, then add sodium chloride solution volume 15% ethyl acetate to the beaker, stir evenly with a stirring bar, then cool naturally to room temperature, use cotton as a filter membrane, and filter the mixture in the beaker Filter, collect the filtrate and put it in a centrifuge, centrifuge at 5000r / min, and collect the supernatant; according to the mass ratio of 1:1, weigh fresh red algae an...

example 2

[0020] Firstly, according to the mass ratio of 3:2:2, weigh jujube kernels, cypress kernels, and Prunella vulgaris respectively and put them in an oven, dry them at 80°C for 2.5 hours, put them into a ball mill for grinding, pass through a 150-mesh standard sieve, and put the sieved Put the particles into a beaker, add a 3% sodium chloride solution to the beaker, the amount added is 2.5 times the mass of the particles, move the beaker to the induction cooker, set the power to 2100W, and heat for 43min; after the above heating is completed , increase the power to 2800W, continue heating for 2.5h, then add sodium chloride solution volume 17% ethyl acetate to the beaker, stir evenly with a stirring bar, then cool naturally to room temperature, use cotton as a filter membrane, The mixture is filtered, the filtrate is collected and put into a centrifuge, centrifuged at 5500r / min, and the supernatant is collected; according to a mass ratio of 1:1, fresh red algae and freshly deseeded...

example 3

[0023]First, according to the mass ratio of 3:2:2, weigh the jujube kernels, cypress kernels and Prunella vulgaris respectively and put them in an oven, dry them at 80°C for 3 hours, put them into a ball mill for grinding, pass through a 150-mesh standard sieve, and put the sieved Put the particles into a beaker, add a 3% sodium chloride solution to the beaker, the amount added is 3 times the mass of the particles, move the beaker to an induction cooker, set the power to 2200W, and heat for 45 minutes; after the above heating is completed, Increase the power to 2900W, continue heating for 3 hours, then add sodium chloride solution volume 20% ethyl acetate to the beaker, stir evenly with a stirring bar, then cool naturally to room temperature, use cotton as a filter membrane, and filter the mixture in the beaker Filter, collect the filtrate and put it in a centrifuge, centrifuge at 6000r / min, collect the supernatant; according to the mass ratio of 1:1, weigh fresh red algae and ...

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Abstract

The invention discloses a preparation method of a natural product anti-fouling agent and belongs to the field of anti-fouling agents. Dizzy substances are extracted from spina date seeds, platycladi seeds and common selfheal fruit-spikes, red algae, pod peppers and the dizzy substances are mixed and fermented, the fermented substances are aerated, ethanol is added to the fermented substances, filtering is performed under reduced pressure, filtrate is subjected to rotary evaporation until the filtrate is dried, finally, the substances are ground and screened, and the natural product, namely, the anti-fouling agent, is obtained. The dizzy substances obtained from spina date seeds, platycladi seeds and common selfheal fruit-spikes can have a dizziness effect on microorganisms, the anti-fouling agent obtained by composting the dizzy substances and capsaicin extracted from red algae and pod peppers is environment-friendly, good in anti-fouling effect, long in anti-fouling duration and biologically degradable and cannot cause secondary pollution to the sea environment.

Description

technical field [0001] The invention discloses a preparation method of a natural product antifouling agent, belonging to the field of antifouling agents. Background technique [0002] With the improvement of human living standards, the demand for seafood has increased. After years of overfishing, the seafood in the ocean is seriously insufficient, so the marine aquaculture industry is booming. It is increasing year by year, and with the development of the industry, new problems arise spontaneously. The marine environment is an environment with severe corrosion and biofouling. After the sailing ships are attached to organisms, the frictional resistance of surface navigation will be significantly increased. The constant temperature of fishing nets The immersion depth of fishing gear generally ranges from 0 to 20m, and it is easy to adhere to marine organisms. The main species are algae, rotifers, bryozoans, barnacles, etc., and antifouling coatings are one of the main methods ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/16
CPCC09D5/1606C09D5/16C09D5/1656
Inventor 郭伟明王统军宋奇
Owner CHANGZHOU C PE PHOTO ELECTRICITY SCI & TECHN
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