IN SITU FABRICATION OF CARBON FIBER/CARBON NANOTUBE HYBRID FOR PROMOTING THE FLAME RETARDANCY OF POLYPROPYLENE
A novel dense carbon fiber (CF)/carbon nanotube (CNT) hybrid was fabricated through catalytic carbonization of polypropylene (PP) by the combined catalysts of chlorinated CF (CF-Cl) and Ni2O3 to remarkably improve the flame retardancy of PP.The trace amount of chlorine radicals from the decomposition of CF-Cl promoted the degradation of PP radicals into hydrocarbons and aromatic compounds, while Ni2O3 catalyzed these degradation products into CNTs, which were aggregated into microscale spheres.Meanwhile, the macroscale CF-Cl acted as support for microscale CNT spheres to in situ form CF/CNT hybrid.The compact hybrid not only reduced the amount of flammable volatiles during combustion, but also prevented the diffusion of oxygen into PP matrix and volatile decomposition products out of PP and acted as a thermal shield for energy feedback from the flame.
Jiang Gong Hongfan Yang Xin Wen Jie Liu Tao Tang
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chi State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chi
国际会议
长春
英文
107-108
2016-06-15（万方平台首次上网日期，不代表论文的发表时间）