RESEARCH OF THERMAL AND TRIBOLOGICAL PROPERTIES CARBON PLASTIC BASED ON PHENYLONE C-2

Abstract

The  main  thermal  and  tribological properties of carbon fiber reinforced plastic based on aromatic polyamide phenylon  C-2  reinforced  with  metal-containing carbon fiber have been researched. It is shown that  the  reinforcement  of the  polyamide  binder  with  chromium-containing  carbon  fiber  in  the  amount  of  17 wt. % increases  the  thermal stability of  the  polymer  by  an  average  of  25-35°С. The  study  of  the  possible  mechanism  and  the  calculation  of  the kinetic parameters  of  the  process  of  thermal  destruction  of  the  developed  carbon  fiber  indicates  that  it  is  best described  by  the equation of one-dimensional diffusion. At all  studied  sliding  speeds, the  coefficient  of  friction  of  carbon  fiber  decreased  with  an  increase  in  specific  loads by 1.7-2.3 times, and  the  wear resistance  of  the  material increased  being  in  the  range  of  5.0-3.5 · 10^-9. The  performance  criterion PV of  carbon  fiber  was  1.2 MPa · m/s, which was  1.5  times  higher  than  the criterion PV of phenylone C-2. The developed carbon fiber is recommended as an antifriction material for friction units of machines and mechanisms.