The effect of some fillers on PVC degradation
Articles > Article · 2006
Authors: Tamer KARAYILDIRIM, Jale YANIK, MÜMİNE YÜKSEL, M SAGLAM, C VASILE, H BOCKHORN
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, Journal Indexed in SCI Expanded, International, 2006, vol 75, pp 112-119
DOI: 10.1016/j.jaap.2005.04.012
Summary
The HCl scavenging effect of particulate fillers such as Red Mud (RM), CaCO3 and dolomite on the thermal degradation of PVC was investigated by thermogravimetry/mass spectrometry (TG/MS). It was found that, in the presence of carbonates, the peak temperature (T-max) of dehydrochlorination was shifted to a higher temperature and the rate of mass loss was decreased, while, in the presence of M FeCl3 was formed and dehydrochlorination of PVC was accelerated, but the second decomposition step of PVC has been retarded. Benzene formation has been hindered by the acid scavenger additives and retarded by RM, evolution of benzene and other aromatics being shifted to higher temperatures. (C) 2005 Elsevier B.V. All rights reserved.