Kneissl Lucas M, Joffe Roberts, Kalin Mitjan, Emami Nazanin
Polymer-Tribology Group, Division of Machine Elements, Department of Engineering Sciences and Mathematics, Luleå University of Technology, Campus Porsön, 971 87 Luleå, Sweden.
Laboratory for Tribology and Interface Nanotechnology, Faculty of Mechanical Engineering, University of Ljubljana, Bogišićeva 8, 1000 Ljubljana, Slovenia.
Polymers (Basel). 2024 Aug 15;16(16):2310. doi: 10.3390/polym16162310.
Polyoxymethylene (POM), an engineering polymer commonly used in tribological applications, is often reinforced with fossil-based fibers such as carbon and/or glass fibers to improve its properties. To find more sustainable solutions, in this study, the tribological performance of POM/short cellulose fiber composites at different sliding conditions is investigated. An improvement in the wear coefficient of roughly 69% is observed at the harshest conditions of 5 MPa and 1 m · s with only 10 wt.% cellulose fibers. The friction behavior is furthermore stabilized through fiber addition, as the unfilled polymer did not show a steady state. No signs of thermo-oxidative degradation are found after tribological testing. This study presents promising results for sustainable wear-resistant polymer materials in tribological applications.
聚甲醛（POM）是一种常用于摩擦学应用的工程聚合物，通常用碳和/或玻璃纤维等化石基纤维增强以改善其性能。为了找到更具可持续性的解决方案，本研究考察了不同滑动条件下POM/短纤维素纤维复合材料的摩擦学性能。在5MPa和1m·s的最苛刻条件下，仅添加10wt.%的纤维素纤维，磨损系数就提高了约69%。此外，通过添加纤维，摩擦行为得以稳定，因为未填充的聚合物未呈现稳态。摩擦学测试后未发现热氧化降解迹象。本研究为摩擦学应用中可持续的耐磨聚合物材料提供了有前景的结果。
