Friction and wear of PTFE composites with different filler in high purity hydrogen gas
Friction and wear of PTFE composites with different filler in high purity hydrogen gas
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DOI：
10.1016/j.triboint.2021.106884
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发表时间：
2021-05
影响因子：
6.2
通讯作者：
Y. Sawae;T. Morita;K. Takeda;Shugo Onitsuka;Jyo Kaneuti;Tetsuo Yamaguchi;J. Sugimura
中科院分区：
文献类型：
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作者：
Y. Sawae;T. Morita;K. Takeda;Shugo Onitsuka;Jyo Kaneuti;Tetsuo Yamaguchi;J. Sugimura
制备了不同填料的单填料聚四氟乙烯（PTFE）复合材料，并对其在氢气中的摩擦学性能进行了评价，考察了各种填料的摩擦学性能。结果表明，玻璃纤维对铸铁滑动配合面造成严重的磨损，从而增加了复合材料和配合面在氢气中的磨损。聚苯硫醚填充的PTFE在氢气中的摩擦和磨损特性与环境空气中的摩擦和磨损特性相似，因为它在相对面上形成了PTFE基转移膜，而与周围大气无关。另一方面，碳纤维填充的PTFE在氢气中表现出优异的低摩擦和低磨损。在这种情况下，复合材料表面和滑动配合面都覆盖有富碳摩擦膜。
Single-filler polytetrafluoroethylene (PTFE) composites with different filler materials are prepared and their tribological characteristics are evaluated in gaseous hydrogen to investigate the tribological function of each filler material. The results indicated that glass fibre caused severe abrasion on the cast iron sliding counterface and hence increased wear in both the composite and counterface in hydrogen. The friction and wear characteristics of polyphenylene sulphide-filled PTFE in hydrogen are similar to those in ambient air because it formed a PTFE-based transfer film on the counterface regardless of the surrounding atmosphere. On the other hand, carbon fibre-filled PTFE indicates excellent low friction and low wear in hydrogen. In this case, both the composite surface and sliding counterface are covered with carbon-rich tribofilms.