An XPS investigation of thermal degradation and charring on PMMA clay nanocomposites

被引:69
|
作者
Du, JX
Zhu, J
Wilkie, CA
Wang, JQ [1 ]
机构
[1] Beijing Inst Technol, Sch Chem Engn & Mat Sci, Beijing 100081, Peoples R China
[2] Marquette Univ, Dept Chem, Milwaukee, WI 53201 USA
关键词
XPS; PMMA-clay nanocomposites; thermal degradation; charring;
D O I
10.1016/S0141-3910(02)00074-5
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Poly(methyl methacrylate)-clay nanocomposites have been studied using X-ray photoelectron spectroscopy. It is clear that as the polymer undergoes thermal degradation, the clay accumulates at the surface and the barrier properties which result from this clay accumulation have been described as the reason for the decreased heat release rate for nanocomposites. The surface composition of the clay changes as the nanocomposite is heated and the changes are affected by the organic-modification that were applied to the clay in order to prepare the nanocomposite. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:377 / 381
页数:5
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