Journal of Applied Science and Engineering

Published by Tamkang University Press

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Hsiu-Jung Chiu1 , Jieh-Ming Huang2 and Trong-Ming Don This email address is being protected from spambots. You need JavaScript enabled to view it.3

1Department of Chemical and Materials Engineering, Ta Hwa Institute of Technology, Hsinchu, Taiwan 307, R.O.C.
2Department of Chemical and Materials Engineering, Van Nung University, Chung-Li, Taiwan, R.O.C.
3Department of Chemical and Materials Engineering, Tamkang University, Tamsui, Taiwan 251, R.O.C.


 

Received: April 23, 2007
Accepted: August 31, 2007
Publication Date: June 1, 2008

Download Citation: ||https://doi.org/10.6180/jase.2008.11.2.12  


ABSTRACT


The spherulitic morphology and crystallization kinetics of a melt-miscible blend consisting of two constituents, poly(vinylidene fluoride) (PVDF) and poly(3-hydroxybutyrate) (PHB) were investigated by differential scanning calorimetry (DSC) and polarized optical microscopy (POM). PVDF and PHB crystallized over essentially the same temperature region due to the proximity of melting point, but their crystallization rates were very different in that the crystallization of PVDF always occurred prior to PHB. Consequently, the blends yielded a quite complicated spherulitic morphology that varied upon blend composition and crystallization temperature. Both spherulitic growth rate and overall crystallization rate of PVDF were depressed with the addition of PHB.


Keywords: Spherulitic Morphology, Crystallization Kinetics, Poly(vinylidene fluoride), Poly(3-hydroxybutyrate)


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