Analysis of chlorine distribution in the pyrolysis products of poly(vinylidene chloride) mixed with polyethylene, polypropylene or polystyrene
Analysis of chlorine distribution in the pyrolysis products of poly(vinylidene chloride) mixed with polyethylene, polypropylene or polystyrene
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DOI：
10.1016/j.polymdegradstab.2004.12.022
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发表时间：
2005-07-01
影响因子：
5.9
通讯作者：
Chao, CC
中科院分区：
文献类型：
--
作者：
Bhaskar, T;Tanabe, M;Chao, CC
本文首次报道了聚偏二氯乙烯（PVDC）与聚乙烯（PE）、聚丙烯（PP）、聚苯乙烯（PS）共混物[PE/PVDC、PP/PVDC、PS/PVDC和3P/PVDC，其中3P为PE、PP和PS的等量混合物]裂解产物中氯的分布分析。研究了聚偏二氯乙烯（PVDC）降解产物与PE、PP、PS及3P混合塑料降解产物的相互作用，并与聚氯乙烯（PVC）降解产物进行了比较。产物中氯代烃的生成顺序为PS/PVDC> 3P/PVDC> PP/PVDC> PE/PVDC。令人惊讶的是，与PVC混合塑料的热解液体产物相比，氯化烃的量较少，即使PVDC中的氯含量高于PVC中的氯含量。从PVDC或PVC与PE、PP和PS液体产物中观察到结构相似的氯化烃。热重分析结果表明，PVDC的分解温度低于PVC，并且大部分氯（来自PVDC）在PP、PE和PS降解之前离开降解反应器。(c)2005爱思唯尔有限公司保留所有权利。
The analysis of chlorine distribution in the pyrolysis products of poly(vinylidene chloride) PVDC mixed with polyethylene (PE), polypropylene (PP) or polystyrene (PS) were investigated [PE/PVDC, PP/PVDC, PS/PVDC and 3P/PVDC, where 3P is equal mixture of PE, PP and PS] and reported for the first time. The interaction of degradation products from individual (PE, PP and PS) and mixed (3P) plastics with the PVDC degradation products was investigated and compared with poly(vinyl chloride), PVC. The formation of chlorinated hydrocarbons in the liquid products were in the order of PS/PVDC > 3P/PVDC > PP/PVDC > PE/PVDC. Surprisingly, the quantities of chlorinated hydrocarbons were less compared with the pyrolysis liquid products of PVC mixed plastics even though the chlorine content in PVDC is higher than in PVC. The structurally similar chlorinated hydrocarbons were observed from PVDC or PVC with PE, PP, and PS liquid products. Thermogravimetric analysis results suggest that the decomposition temperature of PVDC is lower than PVC and major portion of chlorine (from PVDC) left the degradation reactor before the degradation of PP, PE, and PS. (c) 2005 Elsevier Ltd. All rights reserved.