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Preparation and tribological behavior of polytetrafluoroethylene/metal mesh composites with sandwich structure
Author(s) -
Zhang Wenli,
Li Xiaolei,
Zhang Yan,
Dong Yu,
Yao Weigang,
Liang Lei,
Qi Xiaowen
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.50803
Subject(s) - polytetrafluoroethylene , materials science , composite material , tribology , spall , layer (electronics) , metal , metallurgy
Polytetrafluoroethylene (PTFE) owns an excellent self‐lubricating performance, but its wear rate is very high due to the large‐scale spalling of the matrix in the friction. In this paper, A new kind of PTFE composites with sandwich structure was prepared by layer‐press technology, whose middle layer is filled with metal mesh. The influence of the mesh structure and mesh density of middle metal layer on tribological properties of composites were researched in detail. The results revealled that the metal mesh located in the composites can efficiently prevent the large‐scale spalling of PTFE, which induces the sample of PTFE/500# plain woven dutch metal mesh (PTFE‐500#PWD) to have a lower wear rate (9 × 10 −5 mm 3 /Nm) and COF (0.106) under the fixed experimental condition. The prepared PTFE/metal mesh composites reveal excellent anti‐friction and anti‐wear performance, which can be used to fabricate a new kind of self‐lubricating materials.