Acceleration of cellulose co-pyrolysis with polymer

Citation
Y. Matsuzawa et al., Acceleration of cellulose co-pyrolysis with polymer, POLYM DEGR, 71(3), 2001, pp. 435-444
Citations number
24
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER DEGRADATION AND STABILITY
ISSN journal
0141-3910 → ACNP
Volume
71
Issue
3
Year of publication
2001
Pages
435 - 444
Database
ISI
SICI code
0141-3910(2001)71:3<435:AOCCWP>2.0.ZU;2-8
Abstract
This study was conducted for greater clarification of pyrolysis of municipa l solid waste. The pyrolysis of pure cellulose, polyethylene (PE), polyprop ylene (PP), polystyrene (PS), poly(vinyl chloride) (PVC), and poly(vinylide ne chloride) (PVdC) was compared with that of mixtures of these compounds b y thermal analysis. Interaction only between cellulose and PVC or PVdC was confirmed. The mechanism of pyrolysis of a mixture of cellulose with PVC wa s also studied. Acceleration of dehydration and production of aldehyde comp ounds was observed to occur temporarily with the dehydrochlorination of PVC by thermogravimetry-direct mass spectrometry (TG-MS). FT-IR analysis indic ated the char of a mixture of cellulose and PVC to have fewer hydroxyl grou ps and more C=O and C=C bonds compared with the char of pure cellulose. HCl evolution from chlorinated polymer may thus possibly induce reactions of d ehydration, scission in intra-ring of glucose unit, cross-linkage and charr ing rather than the depolymerization of cellulose. (C) 2001 Elsevier Scienc e Ltd. All rights reserved.