POLYIMIDE RESIN COMPOSITION, POLYIMIDE FILM, POLYIMIDE TUBULAR MATERIAL AND ELECTROPHOTOGRAPHIC TUBULAR MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a nonblack polyimide resin composition, a polyimide film, a polyimide tubular material and an electrophotographic tubular material having a stable medium resistivity value and excellent insulating properties at normal temperature and humidity to high temperature and humidity with slight fluctuation of resistivity values due to variation between samples and places, a change in amount added and a change in voltage and environment, excellent mechanical characteristics and excellent antistatic properties by transportation, transferability and fixing properties in an electrophotographic machine and easily cleaning a toner though the amount of a filled filler is large. SOLUTION: This polyimide resin composition comprises 100 pts.wt. of a polyimide resin and 5-200 pts.wt. of titanium oxide having >=55% and <=95% purity and/or alumina having >=55% and <=98% purity. The polyimide resin composition has a volume resistivity value within the range of 1×10<6> to 1×10<13> Ωcm.