ポリベンズイミダゾール複合材料のトライボロジー特性について

摘要

ポリベンズイミグゾールは耐熱性及び機械的強度がプラスチック材料の中で最も優れたスーパーエンジニアリングプラスチックである．軸受，歯車，ローラなどの機械摺動部品への応用が期待されているがトライボロジー特性に関する研究はみあたらない，本プラスチック材料の高速ミーリング加工に関する研究1）とメーカーサイドの物性の報告程度である．本研究はポリベンズイミグゾール（PBI）複合材料のトライボロジー特性について明らかにしたものである．%The tribological properties of polybenzimidazole composites filled with graphite (Gra), boron naitride (BN), glass fiber (GF) and carbon fiber (CF) were discussed in this study. The results were summarized as follows.rn1) The average frictional coefficient μ of PBI composite with Gra, BN and CF was smaller than that of unfilled PBI (100% pure PBI).rn2) The wear rates (Vs) of PBI composites filled with GF, CF Gra, BN and CF were smaller than the wear rate of unfilled PBI. Vs of Gra, BN, CF filled PBI composite were 0.09mm3/kgf-km, was smaller than that of unfilled PBI, GF filled PBI and CF filled PBI. Respectively.rn3) The wear rates of unfilled PBI, GF filled PBI, CF filled PBI and Gra, BN, CF filled PBI composites were incerased with the incerasing frictional speed and surrounding temperature.