Journal
POLYMER DEGRADATION AND STABILITY
Volume 94, Issue 9, Pages 1564-1570Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2009.04.036
Keywords
Nanocomposites; PVC; Montmorillonite; Dehydrochlorination; Thermal degradation; Intercalation
Categories
Funding
- PLUS (Polymers for a sustainable society)
- INEOS ChlorVinyls
- Vastra Gotalandsregionen
- Business Region Goteborg
- Research Council of Norway
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The aim of this research was to study the effect of different intercalants on the thermal degradation/dehydrochlorination of poly(vinyl chloride) (PVC). PVC nanocomposites were prepared containing 2 phr of montmorillonite clay. The montmorillonite was treated with different organic intercalants and analysed by thermogravimetric analysis and X-ray diffraction. All intercalants; were found to intercalate the clay. The nanocomposites were prepared on a two-roll mill and pressed into 0.7 mm thick plates. The degradation was analysed by yellowness index, Congo red test and UV-visible spectroscopy. All cationic intercalants; were found to accelerate the dehydrochlorination of PVC whereas the non-ionic did not affect thermal degradation. On the other hand, some non-ionic intercalants showed poor dispersion. (c) 2009 Elsevier Ltd. All rights reserved.
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