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Effect of montmorillonite treatment on the thermal stability of poly(vinyl chloride) nanocomposites

Karin Sterky (Institutionen för kemi- och bioteknik, Polymerteknologi) ; Thomas Hjertberg (Institutionen för kemi- och bioteknik, Polymerteknologi) ; Harald Jacobsen
Polymer Degradation and Stability (0141-3910). Vol. 94 (2009), 9, p. 1564-1570.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: nanocomposites, PVC, montmorillonite, dehydrochlorination, thermal degradation, intercalation

Denna post skapades 2009-08-13.
CPL Pubid: 95935


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Institutionen för kemi- och bioteknik, Polymerteknologi (2005-2014)



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