TY - JOUR
T1 - Transcrystallization of polypropylene on carbon fibres
AU - Wang, Chi
AU - Liu, C. R.
N1 - Funding Information:
The financial support of this work by the National Science Council (NSC85-2815-C155-01-017E) is greatly appreciated.
PY - 1997
Y1 - 1997
N2 - Measurements have been made using a polarized optical microscope equipped with hot stages to investigate the transcrystallization of polypropylene on carbon fibres. Both the nucleation rate and induction time at various crystallization temperatures were measured. It has been found that the induction time is inversely proportional to the nucleation rate. Based on the theory of heterogeneous nucleation, the interfacial free energy difference function Δσ of PP on carbon fibres was determined and compared to that in the bulk matrix. From a thermodynamic point of view, transcrystallinity is likely to take place on carbon fibres due to a lower value of Δσ, 1.14 erg cm-2, when compared with that in the bulk, 1.23 erg cm-2.
AB - Measurements have been made using a polarized optical microscope equipped with hot stages to investigate the transcrystallization of polypropylene on carbon fibres. Both the nucleation rate and induction time at various crystallization temperatures were measured. It has been found that the induction time is inversely proportional to the nucleation rate. Based on the theory of heterogeneous nucleation, the interfacial free energy difference function Δσ of PP on carbon fibres was determined and compared to that in the bulk matrix. From a thermodynamic point of view, transcrystallinity is likely to take place on carbon fibres due to a lower value of Δσ, 1.14 erg cm-2, when compared with that in the bulk, 1.23 erg cm-2.
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U2 - 10.1016/S0032-3861(96)01083-X
DO - 10.1016/S0032-3861(96)01083-X
M3 - Article
AN - SCOPUS:0031236916
SN - 0032-3861
VL - 38
SP - 4715
EP - 4718
JO - polymer
JF - polymer
IS - 18
ER -