POLYACRYLONITRILE-BASED POLYMER FOR PRECURSOR FIBER OF CARBON FIBER, PRECURSOR FIBER OF CARBON FIBER AND METHOD FOR PRODUCING CARBON FIBER

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a carbon fiber having excellent tensile strength and tensile modulus without damaging productivity and processability.;SOLUTION: The polyacrylonitrile-based polymer for a precursor fiber of the carbon fiber has 1.2-2.2 intrinsic viscosity, 3.6-6.0 m oxidation depth D at flameproofing treatment, and 180-190C melting point Tm in moist heat measured by a differential scanning calorimeter.;COPYRIGHT: (C)2006,JPO&NCIPI