Dynamic-mechanical analysis of the photo-degradation of long glass fibre reinforced polypropylene:: Mechanical properties' changes

被引：19

作者：

Larena, A ^{[1
]}

de Ochoa, SJ ^{[1
]}

Domínguez, F ^{[1
]}

机构：

[1] Univ Politecn Madrid, Dept Chem Ind Engn & Environm, ETS Ingn Ind, E-28006 Madrid, Spain

来源：

POLYMER DEGRADATION AND STABILITY | 2006年 / 91卷 / 04期

关键词：

photo-oxidation; PP-GF composites; dynamic-mechanical thermal analysis; tensile tests; chemi-crystallization; thermal analysis; SEM;

D O I：

10.1016/j.polymdegradstab.2005.05.034

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polypropylene matrix composites, with different degrees of reinforcement with long glass fibres, are employed in different fields of the industry, such as aeronautics or automotive. Samples of the material were exposed to artificial accelerated photo-ageing in UV chamber (Heracus Xenotest 150S). Their high content of glass fibres causes a surface degradation that can seriously affect mechanical properties. Therefore, dynamic mechanical and tensile tests were carried out in order to compare the changes of the properties with exposure time. These modifications are accompanied with microscopic changes in the crystallinity as can be seen in the thermal analysis experiments. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：940 / 946

页数：7

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