The influences of glass transition temperature (Tg) of epoxy resins filled with graphite fluoride (C2F)n powders (C2F) in the range 0-30wt%, on friction and wear properties were investigated. The epoxy resins used for matrices were Tetrad® D and X (ER-D and X) cured with HHPA, the Tg of which measured by Rheovibron at 110Hz were 246°C and 236°C, respectively. It was observed by SEM photographs that the C2F particles were dispersed randomly in the composites.
The limiting pV values of ER-D and X filled with 30wt% of C2F powders were higher than that of Epikote® 828 (ER-E) filled with 30wt% of C2F by 8.2 times. The friction coefficients (μ) of the composites were in the range of 0.1-0.2. The specific wear rates (W) of the composites were in the order of 10-5mm3/kg·mm and were lower than that of ER-E filled with C2F by 1/10 times. The limiting pV values of the composites which were filled with 30wt% of C2F treated with coupling agents were larger than those of the composites filled with untreated C2F by 1.4 times.
