フッ化グラファイト(C2F)nを充てんしたエポキシ樹脂の摺動特性

概要

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Friction and wear properties of epoxy resin (Epikote 828) cured with hexahydrophthalic anhydride and filled with different (C2F)n powders (C2F), that is, large particles (C2F-L), small particles (C2F-S), and C2F made from natural graphite (C2F-N), in the range of 0-30wt%, were investigated. The composite filled with 85wt% of the mixture of natural graphite and C2F-L by the weight ratio of 9:1 was also used as the specimen (NG: C2F-L-85).It was observed by SEM photographs that the behavior in the friction and wear process of the composites filled with C2F was similar to that of the composites filled with carbon powders. The pV values of the composites filled with C2F increased more than those of the composites filled with carbon powders. NG: C2F-L-85 showed the largest pV value among the composites filled with C2Fs and carbon powders.The friction coefficient (μ) and the specific wear rate (W) of the composites decreased as the content of the C2F powders increased. The μ value of the composite filled with 30wt% of C2F was lower than that of the composite filled with 30wt% of carbon powders, in particular, in the higher range of pV value. The W values of the composites filled with small size C2F, particularly C2F-N, were similar to those of the composites filled with carbon powders. The μ and W values of NG: C2F-L-85 were superior to those of the composite filled with 85wt% of natural graphite.
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