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The effect of some fillers on PVC degradation

✍ Scribed by Tamer Karayildirim; Jale Yanik; Mithat Yuksel; Mehmet Saglam; Cornelia Vasile; Henning Bockhorn

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
332 KB
Volume
75
Category
Article
ISSN
0165-2370

No coin nor oath required. For personal study only.

✦ Synopsis

The HCl scavenging effect of particulate fillers such as Red Mud (RM), CaCO 3 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 RM, FeCl 3 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.

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