Please use this identifier to cite or link to this item:
Title: Stabilizing effect of biobased additives on the thermal degradation of PVC
Authors: Egbuchunam, Theresa Obuajulu
Okieimen, Felix Ebhodaghe
Balköse, Devrim
Keywords: Polyvinyl chlorides
Thermal stabilization
Apparent activation energy
Issue Date: 2010
Publisher: Trans Tech Publications
Source: Egbuchunam, T. O., Okieimen, F. E., and Balköse, D. (2010). Stabilizing effect of biobased additives on the thermal degradation of PVC. International Journal of Engineering Research in Africa, 1, 47-56. doi:10.4028/
Abstract: Novel biobased additives prepared from rubber seed oil were evaluated as thermal stabilizer for PVC. Divalent metal (barium and cadmium) soaps of rubber seed oil were prepared by metathesis in aqueous alcohol and characterized by thermal methods (differential scanning calorimetry and thermogravimetry). The stabilizing effect of the soaps and their admixtures on the thermal degradation of PVC powder and plasticized PVC was examined by dynamic thermogravimetry and dehydrochlorination studies at 160°C using the Thermomat equipment. The metal soaps showed multiple decomposition endotherms but were generally stable (with weight loss less than 5%) within the temperature range (180-220°C) frequently used in the processing of PVC. Using the Broido model, values of apparent activation energy of decomposition of between 50 and 200 kJmol-1 were obtained for the soaps. The biobased additives were found to be relatively effective in stabilizing PVC in powder and plasticized forms against thermal degradation. Using inhibition/retardation time, temperature of incipient decomposition, and temperature at which various extents of decomposition was attained as indices of thermal stabilization, the results from this study indicate a potential for the application of the biobased additives as thermal stabilizer for PVC in rigid and flexible formulations. © (2010) Trans Tech Publications, Switzerland.
ISSN: 1663-3571
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
2604.pdfMakale437.5 kBAdobe PDFThumbnail
Show full item record

CORE Recommender

Page view(s)

checked on Mar 20, 2023


checked on Mar 20, 2023

Google ScholarTM



Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.