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Method for evaluating antifouling performance of antifouling coating layer coated on plate in room

A technology of anti-fouling coating and anti-fouling performance, which is applied in the directions of biochemical equipment and methods, measurement/inspection of microorganisms, color/spectral characteristic measurement, etc. The effect of shortening the screening cycle

Inactive Publication Date: 2009-09-16
OCEAN UNIV OF CHINA
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Problems solved by technology

There are two traditional methods for evaluating the antifouling performance of antifouling coatings. One is to measure the active ingredients of antifouling coatings (such as Cu 2+ , Sn) exudation rate as an important content of the evaluation, but this method has the problem of being seriously out of touch with the antifouling performance of the antifouling coating; However, this evaluation method is subject to many limitations, not only the cycle is long, it is difficult to quantify, but also it is greatly affected by the environment.

Method used

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  • Method for evaluating antifouling performance of antifouling coating layer coated on plate in room
  • Method for evaluating antifouling performance of antifouling coating layer coated on plate in room
  • Method for evaluating antifouling performance of antifouling coating layer coated on plate in room

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Embodiment Construction

[0006] 1. Cultivation of Nitzschia lunata algae liquid for experiment

[0007] After seawater is filtered through a glass sand core funnel, it is boiled and sterilized, and is used to prepare a culture medium after cooling. o, urea 1.8c / o, ferric citrate 0.045c / o, sodium silicate 2c / o. The used Nitzschia lunata algae liquid was cultivated in an artificial climate box. Gently oscillate the sample bottle containing the liquid of Nitzschia crescentus back and forth, so that the algal cells are evenly dispersed. After diluting with different amounts of the above-mentioned nutrient solutions, use a hemocytometer to count the concentration of algae cells in each dilution, and measure the absorbance value of the algae cells in each dilution at the maximum absorption wavelength, so as to obtain a set of algae concentration-absorbance value data. And according to this set of data, the algae solution cultivated to the exponential growth phase is diluted to a certain concentration wit...

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Abstract

An indoor hanging board evaluation method for the antifouling performance of an antifouling coating, which is characterized in that the antifouling coating to be evaluated is evenly coated indoors on a surface with a width of 2.5 to 5 cm, a length of 7.5 to 15 cm, and a height of 0.25 to 0.5 cm. cm blank plate, after hard drying, put the obtained coating sample into the artificial algae culture liquid that has reached the exponential growth phase, measure the absorbance value by spectrophotometer or count with hemocytometer every 6 to 12 hours, The antifouling properties of the antifouling coating were then evaluated based on the rate of change of algal cell concentration over time. The algae selected by the evaluation method of the present invention are the most typical adherent algae on the sea such as diatoms, golden algae or green algae, which can quantitatively characterize the antifouling performance of the antifouling coating in a short period of time, so as to achieve its The purpose of preliminary screening is to greatly reduce the screening cycle of antifouling coatings compared with the traditional method of solid sea hanging boards.

Description

technical field [0001] The invention relates to an indoor hanging board evaluation method for the antifouling performance of an antifouling coating. Background technique [0002] Antifouling coatings are mainly composed of five components: resin, antifouling agent, auxiliary material, filler and solvent, among which resin and antifouling agent are the key components of antifouling coating. The function of antifouling coatings is essentially to provide a coating surface without biological adhesion within a certain period of validity (ie antifouling coating). It can use different antifouling principles, but the most practical at present is to inhibit the attachment of marine organisms by controlling the continuous release of antifouling agents. There are two traditional methods for evaluating the antifouling performance of antifouling coatings. One is to measure the active ingredients of antifouling coatings (such as Cu 2+ , Sn) exudation rate as an important content of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/00G01N21/31G01N33/48C12Q1/02
Inventor 于良民李昌诚姜晓辉张志明徐焕志
Owner OCEAN UNIV OF CHINA
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