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Polymer-Plastics Technology and Engineering Volume 49, 2010 - Issue 2
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Original Articles

Suppression of β-crystal in iPP/PET Fiber Composites

Guoqiang Zheng College of Materials Science and Engineering, The Key Laboratory of Material Processing and Mold of Ministry of Education, Zhengzhou University, Zhengzhou, P.R. China; The Key Laboratory of Polymer Processing Engineering, Ministry of Education, Guangzhou, P.R. China
,
Yongfeng Qi College of Materials Science and Engineering, The Key Laboratory of Material Processing and Mold of Ministry of Education, Zhengzhou University, Zhengzhou, P.R. China
,
Chuntai Liu College of Materials Science and Engineering, The Key Laboratory of Material Processing and Mold of Ministry of Education, Zhengzhou University, Zhengzhou, P.R. China
,
Changyu Shen College of Materials Science and Engineering, The Key Laboratory of Material Processing and Mold of Ministry of Education, Zhengzhou University, Zhengzhou, P.R. ChinaCorrespondence[email protected]
,
Jingbo Chen College of Materials Science and Engineering, The Key Laboratory of Material Processing and Mold of Ministry of Education, Zhengzhou University, Zhengzhou, P.R. China
,
Qian Li College of Materials Science and Engineering, The Key Laboratory of Material Processing and Mold of Ministry of Education, Zhengzhou University, Zhengzhou, P.R. China
&
Xiangfang Peng The Key Laboratory of Polymer Processing Engineering, Ministry of Education, Guangzhou, P.R. China
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Pages 154-157 | Published online: 21 Jan 2010
 
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Abstract

The β-crystal formed in PP/PET fiber composites was investigated. The results indicate that PET fibers (PF) can preferably lead to α-crystal formation on their surface. Besides, α-crystals occur earlier than those in the bulk. The β-crystal, might be induced by temperature gradient, only formed away from the PF in composites with lower content of PF. The higher the content of PF is, more possible the PF network is constructed. The transcrystallinity induced by PF will rapidly occupy the region between the adjacent PFs. Consequently, owing to the spatial confinement, β-form is suppressed in the composites with higher content of PF.

ACKNOWLEDGMENTS

Contract grant sponsors include National Nature Science Found of China; Contract grant number: 50803060, 10590351, 10772164 and opening project of the Key Laboratory of Polymer Processing Engineering, Ministry of Education of China, Contract grant number: 20071202.

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