Mechanical Properties of Epoxy Resin Filled with Graphite Fluoride

Abstract

Dynamic mechanical properties, compressive strength, Vickers hardness, and SEM observation for epoxy resin filled with various graphite fluoride powders of (C₂F)_n(C2F) and (CF)_n(C1F) in the range of 0-30wt% were studied. The graphite fluoride powders were distributed randomly in all the specimens. The glass transition temperature (T_g) and the storage modulus (E') of all the specimens became large with increasing content of graphite fluoride. The effect of filler on the E' was in the order of C2F·N, C1F>C2F·S>C2F·L. The affinity of graphite fluoride powders to epoxy resin was larger than that of carbon powders. The compressive strength (σ_c) and the Vickers hardness (Hv) were influenced strongly by the morphological factors of graphite fluoride powders and their concentrations. The σ_c values of the C1F-filled specimens were larger than those of the C2F-filled specimens. The Hv values of all the specimens, especially in the case C1F-filled specimens, increased remarkably.