Method for improving evaluation efficiency of mussel adhesion resistance of material

A technology for adhesion performance and mussels, which is applied in the field of corrosion to achieve the effect of improving evaluation efficiency and quantifying evaluation results.

Active Publication Date: 2020-10-30
ANGANG STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using DOPA-like substances to improve the evaluation efficiency of anti-mussel adhesion performance of materials has not been reported yet.

Method used

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  • Method for improving evaluation efficiency of mussel adhesion resistance of material
  • Method for improving evaluation efficiency of mussel adhesion resistance of material
  • Method for improving evaluation efficiency of mussel adhesion resistance of material

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Embodiment Construction

[0019] See Table 1 for an embodiment and a comparative example of a method for improving the evaluation efficiency of the material's anti-mussel adhesion performance of the present invention. The material used in Examples 1-9 and Comparative Example is marine steel AH32, and the material used in Example 10 is polytetrafluoroethylene. The concrete effect of embodiment and comparative example is shown in table 2.

[0020] The embodiment of the present invention and comparative example of table 1

[0021]

[0022]

[0023] Table 2 embodiment and comparative example effect

[0024]

[0025] Remarks: ○-the deposition layer has uniform color and uniform film thickness distribution; △-the deposition layer has relatively uniform color and luster and film thickness distribution;

[0026] ×—The deposition layer has uneven color and uneven film thickness distribution.

[0027] It can be seen from the implementation effects of each embodiment that according to the technical so...

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Abstract

The invention discloses a method for improving evaluation efficiency of mussel adhesion resistance of a material. The method comprises the following steps: simulating a mussel adhesion process by virtue of a self-polymerization process of dopamine hydrochloride on the surface of the material; depositing polydopamine on the surface of the material to the maximum extent by regulating and controllingdopamine hydrochloride self-polymerization reaction conditions that are as follows: setting the pH value of the alkaline solution to be 8.5-10, the concentration of dopamine hydrochloride to be 15-21mmol/L, the concentration of the deposition promoter to be 50-200 mmol/L, the concentration of the deposition regulator to be 20-100 mmol/L, the reaction time to be 168 to 240 hours, the reaction temperature to be 20-30 DEG C; cleaning the sample after deposition; and evaluating the mussel fouling amount by adopting the deposition amount of the polydopamine film. The evaluation process does not need tedious microbial culture and the method is simple, convenient and feasible, has quantifiable evaluation results, can significantly improve the evaluation efficiency compared with a real sea coupon method, and is suitable for evaluating the mussel adhesion resistance of metal and non-metal materials.

Description

technical field [0001] The invention belongs to the field of corrosion science, and relates to a corrosion and biological fouling test method, in particular to a method for evaluating the mussel adhesion resistance of materials. Background technique [0002] During the service process of materials in the water environment, they will inevitably face the test of fouling and microbial corrosion. Taking the seawater environment as an example, within a few seconds after the material is immersed in seawater, organic macromolecules, organic debris and inorganic substances will be adsorbed on its surface, and a large number of bacteria will adhere to it within a few minutes, and diatoms will Wait for the microorganisms to start to attach; in the next few days to several months, there will be large-scale fouling organisms, among which mussels and barnacles are the most common. The attachment of large-scale fouling organisms leads to a series of problems such as increased resistance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/04
CPCG01N19/04Y02A40/81
Inventor 高鹏陈义庆钟彬艾芳芳李琳伞宏宇苏显栋沙楷智
Owner ANGANG STEEL CO LTD
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