Unlock instant, AI-driven research and patent intelligence for your innovation.

Antifouling paint containing biological antifouling agent and preparation method thereof

A biological antifouling agent and antifouling coating technology, applied in the field of marine antifouling coatings, can solve the problems of endangering the marine ecological environment, endangering human health, strong toxicity, etc., and achieve the effects of environmental friendliness, adhesion inhibition, and low surface energy

Inactive Publication Date: 2015-03-25
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
View PDF16 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of antifouling agents, organotin has a good antifouling effect and has been widely used. However, this antifouling agent is also highly toxic to other non-target organisms such as fish and shellfish, and has a negative effect on organisms and sea mud. Accumulate in the medium, endanger the marine ecological environment, and even endanger human health through the food chain

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Antifouling paint containing biological antifouling agent and preparation method thereof
  • Antifouling paint containing biological antifouling agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: the preparation of biological antifouling agent

[0011] Put 1 mol of paeonol, 3 mol of paraformaldehyde, 1 mol of n-octylamine, and 300 ml of absolute ethanol into a reaction vessel to dissolve completely and stir, slowly add 3 ml of 37% concentrated hydrochloric acid under reflux condensation conditions, and react at a temperature of 80°C 24 hours; After the reaction finishes, it is 10% NaHCO with weight percent concentration 3 The aqueous solution is neutralized to pH=7, and the product is recrystallized with absolute ethanol to obtain a biological antifouling agent.

Embodiment 2

[0012] Embodiment 2: the preparation of the antifouling coating that wraps biological antifouling agent with fluorosilicone acrylate

[0013] 10g of the biological antifouling agent obtained in Example 1, 10g of fluorosilyl acrylate, 10g of methyl methacrylate, 10g of methacrylic acid, 30g of butyl acrylate, 0.3g of azobisisobutyronitrile and 200g of toluene were stirred and mixed evenly , stirred and reacted at 90°C for 5 hours to obtain a liquid product of fluorosilicone acrylate wrapped biological antifouling agent, take 30g of the liquid product, add 15g of zinc oxide, 10g of iron oxide, 2g of montmorillonite, 1g of bentonite, and 30g of xylene , after repeated grinding and dispersing evenly, the antifouling coating was prepared.

Embodiment 3

[0014] Embodiment 3: biological antifouling agent is to the performance test of diatom control

[0015] Take 50 mg of the biological antifouling agent prepared in Example 1 and add it to a 500 ml volumetric flask, add distilled water to the mark, and prepare 100 ml of a mother liquor with a concentration of 100 ppm; then dilute the mother liquor into a concentration gradient of 10, 5, 3, 1, 0.5, and 0.1 ppm , and then add 0.9ml each into 24-well culture plate, then add 1.8ml prepared f / 2 culture solution, add 0.3ml diatom species; Count the diatoms attached to the bottom after 3 to 7 days of high culture; according to the number of diatoms attached to the bottom, the statistical calculation shows that the half inhibitory concentration is 0.8ppm; it shows that the biological antifouling agent prepared in this example can inhibit the growth of diatoms and affect the pollution. The generation of biological communities achieves the effect of antifouling.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of marine antifouling paints, particularly to an antifouling paint containing a biological antifouling agent and a preparation method thereof. The molecular structure of the biological antifouling agent is composed of a benzene ring, a phenolic hydroxyl group, a methoxy group, a propionyl-group, an amino group and an R1. The preparation method of the antifouling paint containing the biological antifouling agent comprises, firstly, mixing extracted paeonol with trioxymethylene and alkylamine in absolute ethyl alcohol; secondly performing Mannich reaction with catalysis of concentrated hydrochloric acid, and neutralizing the reaction products inside NaHCO3 water solution; thirdly, performing recrystallization through absolute ethyl alcohol to obtain the biological antifouling agent; fourthly, mixing the biological antifouling agent with 3-trifluoropropyl-methyl-dimethacrylate silane, methyl methacrylate, methacrylic acid and butyl methacrylate inside methylbenzene to perform free radical polymerization to obtain a liquid product of the biological antifouling agent; lastly, adding and mixing paints, fillings and coating auxiliaries inside the liquid product, and then performing mixing to obtain the antifouling paint containing the biological antifouling agent. According to the antifouling paint containing the biological antifouling agent, the preparation process is simple, the raw materials are easy to obtain, a wide application prospect can be obtained, and friendly application environments can be achieved.

Description

Technical field: [0001] The invention belongs to the technical field of marine antifouling coatings, and relates to a coating for protecting the surface of objects and facilities in a marine environment, in particular to an antifouling coating containing a biological antifouling agent and a preparation method thereof, which are useful for preventing and removing underwater facilities. Fouling organisms attached to the surface have obvious effects. Background technique: [0002] There are a large number of fouling organisms in seawater, such as barnacles, mussels, sea squirts, bryozoans, hydra, sponges, green algae, diatoms, etc. These organisms can attach to the surface of structures, such as ships, docks, docks, and oil platforms , Submarine cables, buoys, mines, power plant cooling pipes, fishing nets, etc., will cause harm and economic losses to structures in the marine environment, such as increased navigation resistance of ships, blockage of sea pipelines, reduced therm...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08C09D5/16C09D7/12C08F220/18C08F220/14C08F230/08C08F220/06C07C225/16C07C221/00
CPCC07C221/00C07C225/16C08F220/18C08F220/1804C08K3/22C08K3/346C08K13/02C08K2003/2272C08K2003/2296C09D5/1625C09D5/1662C09D7/63C09D133/08C08F220/14C08F230/08C08F220/06
Inventor 郑纪勇蔺存国邱日
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP