Transcrystallization of polypropylene on carbon fibres

Chi Wang; C. R. Liu

doi:10.1016/S0032-3861(96)01083-X

Transcrystallization of polypropylene on carbon fibres

Chi Wang, C. R. Liu

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

53 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	4715-4718
Number of pages	4
Journal	polymer
Volume	38
Issue number	18
DOIs	https://doi.org/10.1016/S0032-3861(96)01083-X
Publication status	Published - 1997

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/S0032-3861(96)01083-X

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title = "Transcrystallization of polypropylene on carbon fibres",

abstract = "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.",

author = "Chi Wang and Liu, {C. R.}",

note = "Funding Information: The financial support of this work by the National Science Council (NSC85-2815-C155-01-017E) is greatly appreciated. ",

year = "1997",

doi = "10.1016/S0032-3861(96)01083-X",

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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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DO - 10.1016/S0032-3861(96)01083-X

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VL - 38

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JO - polymer

JF - polymer

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Transcrystallization of polypropylene on carbon fibres

Abstract

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