文献类型：期刊文献

英文题名：The tribological properties of poly(p-phenylene benzobisoxazole) pulp reinforced friction materials

作者：Liu, Rongbiao[1]; Li, Xinxin[1]; Liu, Xiaoyun[1]; Shen, Benben[1]; Han, Zhewen[1]

机构：[1] Department of Polymer Science, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China

年份：2013

卷号：130

期号：6

起止页码：4032

外文期刊名：Journal of Applied Polymer Science

收录：EI(收录号：20134116837524)

语种：英文

外文关键词：Aromatic compounds - Scanning electron microscopy - Tribology - Temperature - Load testing - Wear of materials - Compression molding - Friction materials - Reinforced plastics

摘要：Automotive friction materials reinforced by home-made poly (p-phenylene benzobisoxazole) (PBO) pulp (fibrillated organic fibers) were prepared through compression molding. The friction and wear behaviors of the obtained composite materials were evaluated using a constant rotating speed type friction tester. The PBO pulp content and the testing loads showed clear influence on the tribological properties of the composites. Friction stability, wear rate, and morphology of sliding surfaces were carefully examined to investigate the effect of the pulp ingredient in the friction materials. Scanning electron microscopy was employed to study the morphology of the surface and wear particles. The significant wear reduction was achieved when the mass fraction of PBO pulp was 3%. Wear rates of the composites with 3% PBO pulp were measured over a load range from 0.3 to 1 MPa at different temperatures. The results pointed to two facts: (1) the wear rate of the friction material increased linearly with load at low temperature (below 200°C); (2) wear status varied with the testing loads at high temperature (above 250°C). Copyright ? 2013 Wiley Periodicals, Inc.