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Title: Studies in the utilization of biobased additives as thermal stabilizer for plasticized PVC
Authors: Okieimen, Felix Ebhodaghe
Egbuchunam, Theresa Obuajulu
Balköse, Devrim
Keywords: Polyvinyl chlorides
Divalent metal soaps
Rubber seed oil
Thermal stabilization
Issue Date: 2009
Publisher: Trans Tech Publications
Source: Okieimen, F. E., Egbuchunam, T. O., and Balköse, D. (2009). Studies in the utilization of biobased additives as thermal stabilizer for plasticized PVC. Advanced Materials Research, 62-64, 335-344. doi:10.4028/
Abstract: Divalent metal (barium, cadmium, calcium and zinc) soaps of rubber seed oil and their binary mixtures (BaJCd and CaJZn) and epoxidized rubber seed oil (4.5% epoxide content) and its admixtures with the single divalent metal soaps were evaluated as thermal stabilizer for dioctylphthalate plasticized PVC using changes in discolouration indices (yellowness index and UV absorption at 360nm) and initial rates of dehydrochlorination measured at 140 and 160°C. The results obtained showed that the divalent metal soaps were relatively effective in stabilizing the dioctylphthalate plasticized PVC against thermal degradation and that the binary soap mixtures enhanced the heat stabilizing effectiveness: marked reduction in the values of the discolouration indices; longer dehydrochiorination induction period and smaller values of rate constant of initial rate of dehydrochlorination. It was found that epoxidized rubber seed oil was less effective in comparison with the divalent metal soaps in stabilizing plasticized PVC against thermal degradation. These results show that the bio-based additives are compatible with dioctylphthalate plasticized PVC, stable to heat within the range of temperature used in the processing of plasticized PVC, inhibitlretard dehydrochlorination and reduce the extent of degradation.
Description: Advances in Materials and Systems Technologies II; from the 2008 International Conference on Engineering Research and Development: Innovations, ICERD 2008; Benin; Nigeria; 15 April 2008 through 17 April 2008
ISBN: 9780878493371
ISSN: 1022-6680
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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