Synthesis of polyurethane coatings modified by OH-PDMS and their properties of anti-cavitation, antifouling and anticorrosion

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作者

Wei Tian¹

1. Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University

会议/活动

Academic Conference on Marine Pollution Prevention and Corrosion Protection, June 2023 (虚拟会议)

海报摘要

Cavitation, biofouling, and seawater corrosion are important factors in reducing the service life of propellers and other overcurrent components of ship. Herein, OH-PDMS was introduced into polyurethane to synthesize a series of hydrophobic polyurethane coatings with cavitation erosion resistance, antifouling, and anticorrosion functions through a simple addition reaction. The addition of OH-PDMS resulted in a large number of island structures of OH-PDMS on the coating surface. The SiPU-15 with the optimum degree of microphase separation had better tensile strength (12.33 MPa), excellent hydrophobicity (contact angle of 105.3°), hydrolysis resistance (hydrolysis rate of 0.26%), and water repellency (water absorption of 2.21%). More importantly, the weight loss (7.1 mg) of SiPU-15 was much lower than that of SiPU-0 (10.0 mg) under 60 h cavitation owing to the suitable microphase structure on the surface. This work provides a heuristic perspective for the design of polymer materials with cavitation erosion resistance, antifouling, and anticorrosion.

关键词

Polyurethane, Polydimethylsiloxane, Anti-cavitation, Antifouling, Anticorrosion

研究领域

Chemical Engineering, Mechanical Engineering, Energy Engineering

参考文献

1. 10.1016/j.porgcoat.2023.107515

基金

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补充材料

暂无数据

附加信息

利益冲突

No competing interests were disclosed.

数据可用性声明

The datasets generated during and / or analyzed during the current study are available from the corresponding author on reasonable request.

知识共享许可协议

Copyright © 2023 Tian. This is an open access work distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.