PROSPECTS FOR COAL SCIENCE IN THE 21ST CENTURY
|
1999年
关键词:
carbon fibres;
coal-tar pitch;
D O I:
暂无
中图分类号:
TE [石油、天然气工业];
TK [能源与动力工程];
学科分类号:
0807 ;
0820 ;
摘要:
A thermally treated coal tar pitch with 40 % mesophase content was subjected to a hot filtration process in order to separate the isotropic phase from the mesophase. The isotropic phase thus obtained was extracted with different solvents to increase its softening point and then spun into carbon fibres of several diameters ranging from 15 to 40 microns. The fibres were stabilised, carbonised and characterised by SEM. The mechanical behaviour of the fibres was determined.