Photo-oxidative degradation of polyethylene/montmorillonite nanocomposite

被引：156

作者：

Qin, HL

Zhao, CG

Zhang, SM ^{[1
]}

Chen, GM

Yang, MS

机构：

[1] Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Engn Plast, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

POLYMER DEGRADATION AND STABILITY | 2003年 / 81卷 / 03期

关键词：

polyethylene; montmorillonite; nanocomposite; photo-oxidative; degradation;

D O I：

10.1016/S0141-3910(03)00136-8

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

Photo-oxidative degradation is critical to polymer materials. It is even the case in polymer/layered silicate nanocomposites. A UV photo-oxidative degradation study on polyethylene/montmorillonite (PE/MMT) nanocomposite was carried out by FT-IR technique. It is indicated that the rate of photo-oxidative degradation of PE/MMT nanocomposite is much faster than that of pure PE. The acceleration of photo-oxidative degradation of PE/MMT nanocomposite is due to the effect of MMT and ammonium ion, in which the effect of ammonium ion is primary. It has been found that the dispersion state (either nano- or micro-) of MMT does not seem conclusive on the acceleration of degradation. Fe3+ modified MMT can also accelerate the photo-oxidative degradation of PE matrix. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：497 / 500

页数：4

共 13 条

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Polymer-layered silicate nanocomposites: Preparation, properties and uses of a new class of materials [J].