The effect of filler type, morphology and coating on the anisotropy and microstructure heterogeneity of injection-moulded discs of polypropylene filled with aluminium and magnesium hydroxides.: Part 1.: A wide-angle X-ray diffraction study

被引:19
作者
Velasco, JI
Morhain, C
Martínez, AB
Rodríguez-Pérez, MA
de Saja, JA
机构
[1] Univ Politecn Catalunya, Ctr Catala Plast, Barcelona 08222, Spain
[2] Univ Valladolid, Fac Ciencias, Dept Fis Mat Condensada Cristalog & Mineral, Valladolid 47011, Spain
关键词
polypropylene; flame retardant fillers; injection-moulding; anisotropy; wide-angle X-ray diffraction;
D O I
10.1016/S0032-3861(02)00668-7
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 influence of aluminium hydroxide particle morphology and magnesium hydroxide surface coating on the anisotropy and microstructure heterogeneity of injection-moulded discs of polypropylene (PP) filled with 40% by weight of these fillers has been studied through wide-angle X-ray diffraction measures. In general, the discs displayed an anisotropic structure due to different orientations of both filler particles and PP crystals through the part thickness. The samples also exhibited some degree of heterogeneity due to different levels of particle orientations in specimens far away and close to the disc mould entrance. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:6805 / 6811
页数:7
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