Study on photodegradation of injection-moulded β-polypropylenes

被引：25
|
作者：
Obadal, M
Cermák, R
Raab, M
Verney, V
Commereuc, S
Fraïsse, F
机构：
[1] Tomas Bata Univ Zlin, Fac Technol, Dept Polymer Engn, Zlin 76272, Czech Republic
[2] Acad Sci Czech Republ, Inst Macromol Chem, CR-16206 Prague, Czech Republic
[3] Univ Clermont Ferrand, Photochim Mol & Macromol Lab, CNRS, F-63177 Aubiere, France
来源：
POLYMER DEGRADATION AND STABILITY | 2006年 / 91卷 / 03期
关键词：
beta-polypropylene; injection moulding; photo-oxidation; skin-core morphology; structure evolution;
D O I：
10.1016/j.polymdegradstab.2005.01.046
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The effects of UV irradiation on P-nucleated injection-moulded polypropylenes (beta-iPP) have been Studied at several structural levels. Commercially available isotactic polypropylene was modified by 0.03 wt.% beta-nuclcating agent based on N,N'-dicyclohexylnaphtlialene-2,6-dicarboxamide. beta-iPP specimens were injection-moulded using a processing set-LIP in which only mould temperature was varied. It was found that specimens consisted of a skin-core structure, which was strongly influenced by varying mould temperatures. The structural development consequently affected the specimen degradability as shown by wide-angle X-ray scattering, light microscopy and micro-infrared microscopy. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：459 / 463
页数：5
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