表面改性碳纤维对聚酰亚胺复合材料摩擦学行为的影响.pdfVIP

20 10 10 O ct20 10 35 10 LUBR ICAT ION ENG INEER ING V ol35 No10 DOI: 103969 / jissn0254 - 0150201010019 ( 210009 ) ( CF ) , CF ( PI) , CF P I PI, CF, CF , CF, CF /P I ; ; ; ; TH 117. 1 A 0254- 0150 ( 20 10) 10 - 077- 4 Effectof on SurfaceModifidedCarbon Fiber on TribologicalPerformance ofPolyimideComposites Y ang Changcheng Y ao Y uew en W ang X iaodong H ua ng Pe i ( State K ey Laboratory ofM aterialsO rien ted Ch em ical E ngineering, N anj ing U n ivers ity of T echno logy, N anj ing Jiangsu 210009, Ch ina) Abstract:T he short cu t carbon fibers( CF) w ere treated by n itric ac id ox idation and compound coating m od ification, and the polymi id e( PI) com pos ites w ith CF w ere prepared by hot m ou ld ing process. Th e tribological p erform ances of CF /P I composites under d ifferen t s lid ing sp eed and norm al load w ere stud ied, the w orn su rfaces of CF /PI compositesw ere investi gated by SEM. Resu lts ind icate th at the in terfacia l bond ing strength of CF and P I is the m ost mi portan t factor to influence the tribological perform an ce of P I composites under d ifferen t s lid ing speed. The com pound coating treatm ent mi proves the tribolog ical perform ance of CF /P I compos ites under h igh slid ing speed. The strength of CF is th e most mi portan t factor to influ ence th e tribologica l perform an ce o f CF /PI composites und er d ifferen t norm al lo