TA2钛金属双极板表面C-PPS复合涂层抗腐蚀性能研究
Study on Corrosion Resistance of C-PPS Composite Coatings on TA2 Titanium Bipolar Plates
DOI: 10.12677/ms.2026.166132, PDF,    科研立项经费支持
作者: 陈青华：兰溪致德新能源材料股份有限公司，浙江 金华；陈 璐：湖南工程学院机械工程学院，湖南 湘潭；高平平：兰溪致德新能源材料股份有限公司，浙江 金华；湖南工程学院机械工程学院，湖南 湘潭
关键词: 质子交换膜燃料电池；钛金属双极板；微纳米孔；C-PPS复合涂层；Proton Exchange Membrane Fuel Cell (PEMFC)； Titanium Bipolar Plate； Micro-Nano Pores；
摘要: 本文针对TA2表面存在钝化膜，涂层结合弱且钛金属双极板在PEMFC工作环境下易腐蚀的缺点，使用聚苯硫醚(PPS)树脂和平均粒径30 nm的导电炭黑为耐蚀涂料，经甲苯二异氰酸酯(TDI)固化剂固化，在钛板表面制备出致密的C-PPS复合涂层，并通过轧制和调控耐蚀涂料比例优化其耐腐蚀性能。当PPS含量为导电炭黑的70%时，涂层性能最佳，轧制前腐蚀电流密度为0.63 μA·cm−2，电阻率为45 mΩ·cm；轧制后，涂层的附着力达到ISO 0级标准，腐蚀电流密度仅为0.079 μA·cm−2，电阻率降至10 mΩ·cm。
Abstract: In this paper, targeting the disadvantages of a passive film formed on TA2 titanium alloy, which leads to poor coating adhesion, and the tendency of titanium bipolar plates to corrode in PEMFC operating environments, C-PPS composite coatings were prepared on titanium substrates using polyphenylene sulfide (PPS) resin and 30 nm carbon powder with isocyanate as a curing agent, then, the corrosion resistance of titanium bipolar plates has been improved via rolling treatment and adjusting PPS content. The optimal performance was achieved when the PPS content was 70% of the nano-carbon powder. Before rolling, the corrosion current density was 0.63 μA·cm−2, the resistivity was 45 mΩ·cm. After rolling, the coating adhesion reached ISO Grade 0, the corrosion current density was only 0.079 μA·cm−2, and the resistivity decreased to 10 mΩ·cm.
文章引用：陈青华, 陈璐, 高平平. TA2钛金属双极板表面C-PPS复合涂层抗腐蚀性能研究[J]. 材料科学, 2026, 16(6): 1-12. https://doi.org/10.12677/ms.2026.166132

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