According to the latest news of Sinopec, its Shanghai Petrochemical Company has successfully developed a 48K large tow carbon fiber polymerization, spinning and oxidizing carbonization process technology. The carbon fiber produced has excellent surface structure and interface properties. Achieving low cost. The history of China’s long-suffering history in this field has come to an end.
According to Huang Xiangyu, chief engineer of the acrylic fiber acrylic fiber department of 'Polyacrylonitrile (PAN) based large tow raw silk and carbon fiber technology and process package development, in the industry, each fiber carbon fiber number is less than 24,000 (24K) is called Small tow; more than 48,000 (48K) is called large tow. Previously, domestic large tow carbon fiber business thousands of tons per year, all relying on imports, the relevant core technology is controlled by a few developed countries such as Japan, the United States, Technical barriers are strict.
