ナノ及び短カーボンファイバー充填ポリブチレンテレフタレートのトライボロジー特性について

概要

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The tribological properties of composites of polybutylene terephthalate (PBT) filled with nano- carbon and short carbon fibers were discussed in this study. The nano-carbon fiber (VGCF) was made by vapor deposition method, and its size was 150nm of diameter and 10μm of length, and the short carbon fiber (CF) was 13^m of diameter and 700μm of length. The results were summarized as follows. 1) The average factional coefficients μ of VGCF and CF filled PBT composites were smaller than that of unfilled PBT itself (PBT of 100%). Moveover μ of VGCF filled PBT composites was 0.1 times, CF filled PBT composites were 0.2-0.25 times than that of unfilled PBT itself. 2) The wear rates of VGCF and CF filled PBT composites were smaller than that of unfilled PBT itself. Moreover Vs of VGCF filled PBT composites were 0.4 times, CF filled PBT composites were 0.6-0.8 times than that of unfill PBT.