基于拉曼光谱的含铜自抛光防污涂料的性能研究

doi:10.11896/cldb.22110241

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Abstract Fouling of marine organisms often occurs on the surface of marine materials and equipment, causing serious economic losses and security risks. Antifouling coatings are one of the most economical and efficient measures to relieve marine fouling organisms through slow release of toxic agents. Antifouling agent is the main component of antifouling coating. However, there are few studies on the detection of cuprous oxide (Cu₂O) and its composition change in the process of service in Cu₂O-SPC. In view of this, the surface characteristics of Cu₂O-SPC and the composition changes of antifouling agent Cu₂O in service were studied in this work. The results of scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) show that there are obvious granular phase and non-granular phase on the surface of Cu₂O-SPC, in which there are a large number of Cu, C, O elements in the granular phase and Cu, C, O, Fe, S, Si elements in the non-granular phase. The Raman spectra shows that the tracking Raman characteristic peak of Cu₂O in Cu₂O-SPC is selected as 409 cm^-1, and the characteristic peak of Cu₂O-SPC changes before and after corrosion. In situ analysis of some areas of Cu₂O-SPC show that the characteristic peak intensity and peak area of Cu₂O decrease and the fluctuation decrease. That is, the Cu₂O concentration of Cu₂O-SPC has changed before and after corrosion. During the service of antifouling coatings, Cu₂O slowly diffuses to the outside environment, and it diffuses from high concentration to low concentration driven by the concentration difference inside the antifouling coatings. This work is helpful to clarify the surface morphology and composition of antifouling coatings used in marine equipment and the transformation of antifouling agent concentration. It provides a new method to trace and quantify the key chemical components of antifouling coatings.

Key words： antifouling coating antifouling agent micro-morphology composition change

Published: 10 May 2024 Online: 2024-05-13

CLC number:

TQ630.1

Fund:NSFC-Shandong Joint Fund (U2006219), National Defense Basic Scientific Research Program (JCKY2021513B001), Open Project of State Key Laboratory of Marine Coatings, China University of Petroleum (East China) College Student Innovation Training Program (202207057), and University Student Research Project of Shandong Province (22SSR052, 22SSR048).

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	Articles by authors
	ZHU Yongqiang
	FENG Meng
	ZHAO Qixin
	WANG Hanbing
	YANG Yulong
	QI Jiantao
	CONG Weiwei

Cite this article:

ZHU Yongqiang,FENG Meng,ZHAO Qixin, et al. Research on Performance of Self-polishing Antifouling Coatings Containing Cu Based on Raman Spectroscopy[J]. Materials Reports, 2024, 38(9): 22110241-5.

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https://www.mater-rep.com/EN/10.11896/cldb.22110241 OR https://www.mater-rep.com/EN/Y2024/V38/I9/22110241

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