Effect of cooling rate on crystal polymorphism in beta-nucleated isotactic polypropylene as revealed by a combined WAXS/FSC analysis
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- 作者：Alicyn Marie Rhoadesa ; amh234@psu.edu" class="auth_mail" title="E-mail the corresponding author ; Nichole Wonderlingb ; Anne Gohna ; Jason Williamsa ; Daniela Milevac ; Markus Gahleitnerc ; René ; Androschd ; rene.androsch@iw.uni-halle.de" class="auth_mail" title="E-mail the corresponding author
- 关键词：Isotactic polypropylene ; β-crystallization ; FSC/WAXS analysis
- 刊名：Polymer
- 出版年：2016
- 出版时间：4 May 2016
- 年：2016
- 卷：90
- 期：Complete
- 页码：67-75
- 全文大小：2709 K
文摘
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Crystallization of β-nucleated iPP at processing-relevant cooling conditions was evaluated.
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The investigation was performed using chip calorimetry and microfocus X-ray diffraction.
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The cooling rate controls the crystallization temperature, and with that the crystal polymorph forming.
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Critical cooling rates which trigger formation of α- or β-crystals in presence of γ-quinacridone were identified.
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The effect of the content of γ-quinacridone in iPP was addressed.