| 摘要 |
PROBLEM TO BE SOLVED: To propose a method for producing a fiber-reinforced polyimide material characterized in that in a fiber-reinforced polyimide material in which the matrix resin is a polyimide material, the mechanical strengths are improved after fabrication. SOLUTION: The method for producing a fiber-reinforced polyimide material with improved mechanical strengths includes irradiating with electron beams a fiber-reinforced polyimide material in which the matrix resin is a polyimide material. Desirably, the dose of irradiation with electron beams is 0.01-1 MGy, the matrix resin is a polyimide material formed from an addition-type polyimide precursor, and the addition-type polyimide precursor contains a phenylethynyl group as an addition-reactive group. COPYRIGHT: (C)2011,JPO&INPIT |
