BI Dong-dong, PAN Zhi-cun, LIU De-shan, ZHOU Qi-yang. SECONDARY CRYSTALLIZATION OF PPTA FIBER IN THE THERMO-TREATMENT PROCESS[J]. Acta Polymerica Sinica, 1991,(1):64-70.
BI Dong-dong, PAN Zhi-cun, LIU De-shan, ZHOU Qi-yang. SECONDARY CRYSTALLIZATION OF PPTA FIBER IN THE THERMO-TREATMENT PROCESS[J]. Acta Polymerica Sinica, 1991,(1):64-70.DOI:
A systematic investigation on thermo-treatment mechanism of PPTA fiber was carried out by X-ray diffraction
TEM
FTIR
PPM
DSC
ect.
which resulted in confirmation of secondary crystallization of PPTA fiber in the thermo-treatment process. It is found that elastic modulus of the fiber is mainly affected by the increasment of crystallinity due to the secondry crystallization
and the thermo-treatment temperature has great influences on the secondary crystallization.