Effect of spatial confinement on the development of β phase of polypropylene

Tang, Xue-Gang, Yang, Wei, Bao, Rui-Ying, Shan, Gui-Fang, Xie, Bang-Hu, Yang, Ming-Bo and Hou, Meng (2009) Effect of spatial confinement on the development of β phase of polypropylene. Polymer, 50 16: 4122-4127. doi:10.1016/j.polymer.2009.06.035


Author Tang, Xue-Gang
Yang, Wei
Bao, Rui-Ying
Shan, Gui-Fang
Xie, Bang-Hu
Yang, Ming-Bo
Hou, Meng
Title Effect of spatial confinement on the development of β phase of polypropylene
Journal name Polymer   Check publisher's open access policy
ISSN 0032-3861
1873-2291
Publication date 2009-07-31
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.polymer.2009.06.035
Volume 50
Issue 16
Start page 4122
End page 4127
Total pages 6
Editor A. H. E. Muller
S. Z. D. Cheng
T. Hashimoto
Place of publication Oxford, U.K.
Publisher Elsevier
Collection year 2010
Language eng
Subject C1
091299 Materials Engineering not elsewhere classified
670705 Plastic products (incl. construction materials)
Abstract The focus of this study was the effect of spatial confinement on the development of nucleating agent-induced beta phase polypropylene (PP) in the dynamically vulcanized thermoplastic elastomers (TPVs) based on dynamically vulcanized PP/ethylene-propylene-diene rubber (EPDM) blend. The melting behaviors, crystalline structures and the morphologies of the blends were studied by differential scanning calorimetry (DSC), wide-angle X-ray diffraction (WAXD) and scanning electron microscopy (SEM). The results indicate that the EPDM phase undergoes a series of changes from the dispersed phase to a continuous one, and again to the dispersed phase with increased content of curing agent, and the PP component always shows itself in a continuous phase. In this process, with the content of the nucleating agent unchanged, the content of beta phase PP in the blends initially increases a little and then decreases with increasing PF (Phenolic resin) content. We believe spatial confinement provides a good explanation for the development of beta phase PP.
Keyword Spatial confinement
Isotactic polypropylene
β Phase
Dynamically vulcanized PP/EPDM (TPV)
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Mechanical & Mining Engineering Publications
ERA 2012 Admin Only
 
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Created: Thu, 03 Sep 2009, 07:43:21 EST by Mr Andrew Martlew on behalf of School of Mechanical and Mining Engineering