China Plastics ›› 2021, Vol. 35 ›› Issue (6): 20-25.DOI: 10.19491/j.issn.1001-9278.2021.06.004

• Materials and Properties • Previous Articles     Next Articles

Effect of Hybrid Fiber Content on Friction and Wear Properties of Resin⁃based Friction Materials

LU Zhangxiang(), SONG Ge   

  1. Modern Technology Center,Anhui Polytechnic University,Wuhu 241000,China
  • Received:2021-01-21 Online:2021-06-26 Published:2021-06-23

Abstract:

To study the effect of a variety of reinforcing fibers composed of only non?metallic mixtures on the friction and wear properties of resin?based friction materials, the friction materials were prepared by adding carbon fiber and aramid pulp fiber through a hot?pressing sintering technology using the cashew?nut?shell?liquid?modified phenolic resin (CNSL) as a matrix. The friction and wear performance of the friction material under different braking conditions was investigated using a ring block friction and a wear tester equipped with high?speed steel. The wear morphology of the friction materials was analyzed with scanning electron microscopy. The results indicated that the friction material (P3) containing 4 vol% glass fiber, 10 vol% carbon fiber and 3 vol% aramid pulp fiber exhibited high hardness than the friction material (P1) at the corresponding fiber contents of 7, 4 and 6 vol% and the friction material (P2) at the corresponding fiber contents of 1, 7 and 9 vol%. Under the different braking conditions, the sample P1 had the largest friction factor, the sample P3 had the second, and the sample P2 had the smallest. The relative wear rates of the samples P3 and P2 were similar and relatively stable, which were about 1 ~ 1/5 of that of the sample P1. The sample P3 exhibited the best tribological performance. The wear form of friction material and mating material was determined to be mainly abrasive wear.

Key words: resin?based friction material, glass fiber, carbon fiber, aramid pulp fiber, friction, wear

CLC Number: