Effect of homologous molecular crosslinking on the tribological properties of PTFE composites
Source abstract
Abstract
Abstract A method of improving the tribological properties of hexagonal boron nitride/short carbon fibers/polytetrafluoroethylene (h‐BN/SCFs/PTFE) composites by adding homologous micropowder (MP1100) with polar groups is proposed in this study. Composites of h‐BN/SCFs/PTFE with MP1100 at 0, 8, 16, 24, and 32 wt% were prepared. The pin‐on‐disc device was used to evaluate the friction properties of composites, and wear mechanisms against duplex stainless steel was examined. The experimental results show that MP1100 micropowder improves composite mechanical properties, friction coefficient, and wear resistance of composites. A 78.4% drop in wear rate was measured for 24 wt% MP1100. Such decrease in wear rate is explained based on changes in composite molecular structure, a transfer film formed by the absorption of debris, and the formation of chemically reacted polar group compounds on the steel disc.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Tribology and Wear Analysis · Metal and Thin Film Mechanics · Lubricants and Their Additives
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education Tianjin University Tianjin China
College of Field Engineering PLA Army Engineering University Nanjing China
High Speed Aerodynamics Institute China Aerodynamics Research and Development Center Mianyang China
Funding
National Natural Science Foundation of China · Natural Science Foundation of Tianjin City
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