Thermogravimetric study of polymer catalytic degradation over microporous materials

被引：63

作者：

Gobin, K ^{[1
]}

Manos, G ^{[1
]}

机构：

[1] UCL, Dept Chem Engn, London WC1E 7JE, England

来源：

POLYMER DEGRADATION AND STABILITY | 2004年 / 86卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

polymer recycling; polymer degradation; catalytic cracking; TGA;

D O I：

10.1016/j.polymdegradstab.2004.05.001

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 apparent activation energy of the overall process of polymer catalytic cracking over zeolites, commercial cracking catalysts, clays and pillared clays was estimated using thermogravimetric analysis. The activation energy of polymer cracking over ultrastable Y zeolite showed the lowest value due to the strongest acidity of this zeolite. Commercial cracking catalysts showed considerably higher activation energy than their parent ultrastable Y zeolite as they contained only 20% and 40% of the active zeolite. Over clays and pillared clays, polymer degradation showed even higher apparent activation energy values due to their weak acidity. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：225 / 231

页数：7

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