广东费飘职业故本学院 Guangdong Inatitute of Textile Technology Pitch based carbon fibers. a pitch- high molecular weight byproduct of distillation of petroleum heated >350 c condensation reaction formation of mesophase(liquid crystal: Structure of mesophase pitch melt spinning into pitch fibers Oxidation at a temperature below softening temperature conversion into graphite fibers at 2000 C without tensionPitch based carbon fibers  pitch - high molecular weight byproduct of distillation of petroleum ◼ heated >350°C, condensation reaction, formation of mesophase (Liquid crystal): Structure of mesophase pitch melt spinning into pitch fibers Oxidation at a temperature below softening temperature conversion into graphite fibers at ~2000°C without tension