Photodegradation of polypropylene nanocomposites

被引：123

作者：

Mailhot, B

Morlat, S

Gardette, JL

Boucard, S

Duchet, J

Gérard, JF

机构：

[1] Univ Clermont Ferrand, UMR CNRS 6505, Lab Photochim Mol & Macromol, F-63177 Clermont Ferrand, France

[2] Inst Natl Sci Appl, UMR CNRS 5627, Lab Mat Macromol, F-69621 Villeurbanne, France

[3] ZI Du Guiers, Multibase, F-38380 St Laurent Du Pont, France

来源：

POLYMER DEGRADATION AND STABILITY | 2003年 / 82卷 / 02期

关键词：

nanocomposite; photo-oxidation; polypropylene; layered silicates; LAYERED-SILICATE NANOCOMPOSITES; EPOXY NANOCOMPOSITES; POLYMER; PHOTOOXIDATION; FLAMMABILITY;

D O I：

10.1016/S0141-3910(03)00179-4

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 photochemical behaviour of polypropylene-clay nanocomposites was studied. The samples were prepared by blending in the molten state isotactic polypropylene, organo-modified montmorillonite, i.e. layered silicate or clay modified with alkyl ammonium cations, and maleic anhydride-grafted polyprolylene as compatibilizer. The montmorillonite dispersion state within the iPP matrix was analyzed by Transmission Electron Microscopy. Accelerated photoageing of nanocomposites carried out at lambda > 300 nm and 60 degreesC was analysed by infrared spectroscopy. The oxidation products formed have been identified and the contribution of each component of the nanocomposite evaluated by studying different formulations. The presence of stabilisers in the formulation has also been analysed from the comparison of the rates of oxidation of several stabilised and non-stabilised nanocomposites. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：163 / 167

页数：5

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