TG-DSC and FTIR study on pyrolysis of irradiation cross-linked polyethylene

被引：16

作者：

Du, Yuying ^{[1
]}

Jiang, Xuguang ^{[2
]}

Lv, Guojun ^{[2
]}

Jin, Yuqi ^{[2
]}

Wang, Fei ^{[2
]}

Chi, Yong ^{[2
]}

Yan, Jianhua ^{[2
]}

Buekens, Alfons ^{[2
]}

机构：

[1] China Power Engn Consulting Grp, North China Power Engn Co Ltd, Beijing, Peoples R China

[2] Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou, Zhejiang, Peoples R China

来源：

JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT | 2017年 / 19卷 / 04期

基金：

国家高技术研究发展计划(863计划);

关键词：

Cross-linked polyethylene; Irradiation; Carbon black; Pyrolysis; RECOVERY;

D O I：

10.1007/s10163-016-0530-z

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Irradiation cross-linked polyethylene (PEX) and irradiation cross-linked polyethylene with carbon black filler (CB-PEX) are two types of scraps, generated in electric cable production. Their pyrolysis is studied in this work using instrumental TG\DSC\FTIR techniques and kinetic analysis. The experiments are performed at a constant heating rate of 10 degrees C/min in nitrogen flow at atmospheric pressure. It is found that the main pyrolysis stage is in the temperature range of 395-503 degrees C for PEX, and in range of 408-515 degrees C for CB-PEX. In the main pyrolysis stage, CB-PEX requires more external heat than PEX does. Olefins are the major products of pyrolysis for both materials, but they are quite different in their composition and molecular weight distribution. PEX can be converted almost quantitatively into volatile compounds. CB-PEX has a stronger coking tendency, as well as a larger residue composed of carbon black.

引用

页码：1400 / 1404

页数：5

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