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Application of bayberry extract in the preparation of marine antifouling coatings

A technology of bayberry extract and marine antifouling, applied in antifouling/underwater coatings, coatings, paints containing biocide, etc., to achieve the effect of simple and mature preparation process, easy-to-obtain raw materials, and good antifouling performance

Active Publication Date: 2017-04-05
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, there is no report about the application of bayberry extract in the preparation of marine antifouling coatings

Method used

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  • Application of bayberry extract in the preparation of marine antifouling coatings
  • Application of bayberry extract in the preparation of marine antifouling coatings
  • Application of bayberry extract in the preparation of marine antifouling coatings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1 Detection of the inhibitory effect of bayberry extract on marine micro-fouling organisms

[0014] The biological detection model of marine micro-fouling organisms uses marine fouling bacteria, the most important micro-fouling organisms in the ocean. Pseudomonas sp., a marine fouling bacterium, can be purchased from the Culture Collection Center of the Institute of Microbiology, Chinese Academy of Sciences, or can be isolated from the surface of steel plates immersed in Xiamen Sea by conventional microbial isolation methods.

[0015] Inoculate Pseudomonas in 2216E liquid medium, culture overnight on a shaker, collect bacteria by centrifugation, wash with sterile seawater and make a suspension, the bacterial concentration is about 10 7 ~10 9 cell / ml. Myrica rubra extract was mixed with the prepared bacterial suspension at concentrations of 1, 5, 10, 50 and 100 μg / ml, and added to a petri dish. In addition, the petri dish with only bacterial suspension but no ...

Embodiment 2

[0017] Example 2 Detection of the inhibitory effect of bayberry extract on marine large-scale soft-fouling organisms

[0018] The biological detection model of marine macrosoft-fouling organisms adopts its representative organism, the bryozoan. The adults of Bugulaneritina were collected from fish raft culture cages in the west sea area of ​​Xiamen, and brought back to the laboratory, put them into glass tanks filled with fresh seawater, and artificial light was used to induce planktonic larvae directly above the glass tanks freed. It is the attachment of planktonic larvae that causes the bryozoa to change from planktonic life to attachment life, so inhibiting the attachment of planktonic larvae can prove that the compound has antifouling activity.

[0019] Dissolve bayberry extract in membrane-filtered seawater (filtered through a filter membrane with a pore size of 0.22 μm), set the concentration gradient to 1, 5, 10 and 50 μg / ml, take 10ml of each solution and add it to a ...

Embodiment 3

[0021] Example 3 Detection of the inhibitory effect of bayberry extract on marine large hard fouling organisms

[0022] The biological detection model of marine macrofouling organisms adopts its representative biological barnacle. The adults of Balanus albicostatus were collected from reefs and bridge piers on the coast of Baicheng, Xiamen, and their Venus larvae were cultured in the laboratory. It is the attachment of the larvae that causes the barnacles to switch from a planktonic to an attached life, so inhibition of the attachment of the larvae is evidence of the antifouling activity of the compound.

[0023] Dissolve bayberry extract in membrane-filtered seawater, set the concentration gradient to 0.1, 1, 10, and 50 μg / ml, take 10ml of each solution and add it to a petri dish, and add another 10ml of membrane-filtered seawater to a petri dish, set control group. Three parallel cups were set up for each experimental group and control group, and 30-80 barnacle Venus larva...

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Abstract

The invention provides application of a bayberry tannin extract in preparing marine antifouling paint, relating to the application of the bayberry tannin extract. The bayberry tannin extract is prepared by using bayberry bark as a raw material through crushing, leaching, evaporating, drying and other steps, wherein the bayberry tannin extract generally contains over 55 percent of tannin, preferably over 68 percent of tannin, has a remarkable inhibition effect in marine micro-fouling organisms, marine large soft fouling organisms and marine large hard fouling organisms, represents efficient and broad-spectrum anti-fouling activity, and is widely applied to preparing marine anti-fouling paint. The marine antifouling paint prepared from the bayberry tannin extract does not contain toxic heavy metal compounds, is purely nature and non-toxic, cannot pollute the environment, and has excellent antifouling efficacy.

Description

technical field [0001] The invention relates to the use of bayberry extract, in particular to the application of bayberry extract in preparing marine antifouling coatings. Background technique [0002] In the historical process of utilizing the ocean and developing marine resources, human beings have always been faced with the problem of preventing marine fouling organisms. Marine fouling organisms refer to marine organisms that attach to and grow on the surface of ships and artificial facilities in the sea, and have adverse effects on human economic activities. The massive attachment and growth of marine fouling organisms lead to increased sailing resistance, reduced speed, increased fuel consumption, blocked aquaculture cages, net cages, aquaculture purse seines, and nets for fixed fishing, and blocked seawater transportation pipelines, resulting in The failure of instruments and rotating mechanisms in the sea affects the normal use of acoustic instruments, buoys, nets, v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/12C09D5/16
Inventor 冯丹青祁剑飞柯才焕王湛昌
Owner XIAMEN UNIV
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