Journal of Coatings Technology and Research

, Volume 16, Issue 1, pp 25–30 | Cite as

Cu2O-clay composites with sub-micrometer-sized Cu2O particles for marine antifouling paints

  • Pengchong Li
  • Chao Cai
  • Yuhua Long
  • Tang Zhu
  • Haixia Dong
  • Caizhen ZhuEmail author
  • Ning ZhaoEmail author
  • Jian XuEmail author


Microsized Cu2O particles are widely used in tin-free marine antifouling (AF) paints. Because of the enlarged specific surface area, utilization of Cu2O particles with smaller sizes is a potential way to improve the AF efficiency and lower the Cu2O content. In this paper, the clay, commonly applied as filler in the paint, was previously used to control the concentration of free Cu2+ during the synthesis of Cu2O. With the help of clay, the size of obtained Cu2O particles decreased from 750 to 460 nm. It has been shown that the smaller-sized Cu2O can work against the marine biofouling with a lower content (15 wt%) compared to the commercial microsized Cu2O (40 wt%) in the 260 days of marine AF field tests.


Antifouling Clay Cu2Field test Particle size 



The authors are grateful for the financial support from the Ministry of Science and Technology (2013AA031802) and the National Natural Science Foundation of China (21421061, 21474117). The authors also thank Ningbo Haiteng New Materials Co., Ltd. for the supports in AF field tests.


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Copyright information

© American Coatings Association 2018

Authors and Affiliations

  1. 1.Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhenChina
  2. 2.Beijing National Laboratory for Molecular Sciences, Institute of ChemistryChinese Academy of SciencesBeijingChina
  3. 3.University of Chinese Academy of SciencesBeijingChina

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