| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyimide belt having a coefficient of friction on the inner face of the belt being hardly influenced by the surface roughness of the surface, achieving stable driving control and eliminating electrification failure by driving, and to provide a method for manufacturing the belt. SOLUTION: The polyimide belt is obtained by imidization by heating a resin solution which essentially comprises a polyamide acid solution containing a fluorine filler by 2 to 20 wt.% and a carbon filler by 3 to 30 wt.%, and is characterized in that when the inner surface of the polyimide belt is subjected to roughening treatment into a surface roughness (Ra) ranging from 0.05μm to 0.35μm, the coefficient of friction (μ) on the inner circumference face of the belt before and after the roughening treatment is in the range of 0.05 to 0.25; and that the gradient of an approximated line representing a relation between the coefficient of friction (μ) and the surface roughness (Ra) is in the range of -1/3 to 1/3. COPYRIGHT: (C)2007,JPO&INPIT
|
