Thermal properties and crystallization behavior of thermoplastic starch/poly(ɛ-caprolactone) composites

Thermal properties and crystallization behavior of thermoplastic starch/poly(ɛ-caprolactone) composites

•The effect of TPS (thermoplastic starch) on the properties of PCL blends was studied.•Thermal stability of PCL blends was reduced significantly due to TPS incorporation.•TPS increased the crystallinity rate of PCL blends, but the crystallinity decreased. TPS/PCL composites were prepared by PCL melt...

Full description

Saved in:
Bibliographic Details
Published in:Carbohydrate polymers Vol. 102; pp. 746 - 754
Main Authors: Cai, Jie, Xiong, Zhouyi, Zhou, Man, Tan, Jun, Zeng, Fanbing, MeihuMa, Lin, Shun, Xiong, Hanguo
Format: Journal Article
Language:English
Published: Kidlington Elsevier Ltd 15-02-2014
Elsevier
Subjects:
Applied sciences
Crystallization
Crystallization behavior
Exact sciences and technology
Natural polymers
Organic polymers
Physicochemistry of polymers
Poly(ɛ-caprolactone)
Properties and characterization
Starch and polysaccharides
Thermal properties
Thermoplastic starch
Thermal properties
Thermoplastic starch
Poly(ɛ-caprolactone)
Crystallization behavior
Polymer blends
Glycerol
Crystallinity
Experimental study
Corn starch
Heterogeneous mixture
Intermolecular interaction
Melt crystallization
Plasticizer
Morphology
Poly(ε-caprolactone)
Oside polymer
Kinetics
Polycaprolactone
Activation energy
Isothermal crystallization
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•The effect of TPS (thermoplastic starch) on the properties of PCL blends was studied.•Thermal stability of PCL blends was reduced significantly due to TPS incorporation.•TPS increased the crystallinity rate of PCL blends, but the crystallinity decreased. TPS/PCL composites were prepared by PCL melt blending with modified corn starch. The structure, thermal properties, morphology and crystallization behavior of these composites were investigated by FTIR, TGA, SEM, XRD and DSC. FTIR confirmed the existence of the interaction between PCL and TPS, whereas TGA showed that the thermal stability was decreased by the addition of TPS. Meanwhile, SEM showed a weak interfacial adhesion with increasing TPS. According to the Avrami theory, TPS functioned as a nucleating agent to improve the crystallinity rate of PCL. However, the XRD analysis revealed that the crystallinity decreased. At the same time, the ΔEa of the composites was higher than those of neat PCL. These changes in values all indicated that mobility constraints existed in the PCL chains with the increasing of TPS, which leaded to a drop in the crystallization ability of PCL.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0144-8617
1879-1344
DOI:10.1016/j.carbpol.2013.10.095