Development and progress in polymer materials for anti-corrosion and anti-fouling applications: A review
Ren-jiang Lyu, Nan Wang, Rui-yong Zhang, Guang-tao Gao, Sheng-xi Li, Ji-zhou Duan, Bao-rong Hou, Wolfgang Sand
Journal of Central South University ›› 2024, Vol. 31 ›› Issue (10) : 3547-3569.
Development and progress in polymer materials for anti-corrosion and anti-fouling applications: A review
Corrosion has always been a difficult problem that troubles and restricts the application and development of engineering materials. By endowing coatings on metal surfaces with polymer material, it is possible to protect other materials from factors including acid and alkali, water vapor, bacteria. Therefore, it is necessary to summarize the research progress of polymer materials in the field of pollution and corrosion prevention in recent years. This article summarizes four types of polymer materials with good weather resistance: polyurethane (PU), polydimethylsiloxane (PDMS), polyvinylidene fluoride (PVDF), and polyvinylidene chloride (PVDC). These four polymer materials are suitable for making polymer anti-corrosion or anti-fouling materials and each has its own characteristics. PU can firmly adhere to various substrates, effectively protecting and extending their lifespan, but the environmentally friendly varieties currently used, namely water-borne polyurethanes (WPU), generally have poor mechanical properties. PDMS is non-toxic and has excellent hydrophobicity, but its static anti-fouling ability is insufficient when applied in the field of anti-fouling. PVDF has good chemical resistance and high mechanical properties, good UV resistance making it suitable for outdoor use like in the marine environment. However, PVDF lacks flexibility after molding and its manufacturing cost is relatively high. PVDC has excellent water vapor barrier properties, but poor adhesion to metal material surfaces. Therefore, researchers need to modify these four polymers when using them to solve the problem of corrosion or biofouling. The article will review the research progress of four types of polymers in recent years from the perspectives of anti-corrosion, anti-fouling, and a strategy named as self-healing that is beneficial for protecting polymer surfaces from mechanical damage, and summarize the modification methods adopted by researchers when applying these materials. Finally, a summary of the application and the prospects of these polymer materials are presented.
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