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https://hdl.handle.net/11147/2732
Title: | Statistical thermal stability of PVC | Authors: | Atakul Savrık, Sevdiye Cansever Erdoğan, Beyhan Balköse, Devrim Ülkü, Semra |
Keywords: | Degradation Kinetics Poly(vinylchloride) PVC Zeolites Stabilization |
Publisher: | John Wiley and Sons Inc. | Source: | Atakul Savrık, S., Cansever Erdoğan, B., Balköse, D., and Ülkü, S. (2010). Statistical thermal stability of PVC. Journal of Applied Polymer Science, 116(3), 1811-1822. doi:10.1002/app.31763 | Abstract: | Experimental design was used to optimize the processing parameters for the decomposition of poly (vinyl chloride). Factorial design and face centered composite design (FCC) were applied to determine the optimum conditions. A total of 10 g PVC powder was mixed with different amounts of zinc stearate (ZnSt 2) and natural zeolite and tested for thermal stability. Factorial fitted model was explained by first order pattern due to the significant main effect regression constants, and FCC model was described by second order model owing to higher order polynomial coefficients. FCC design was superior to factorial design as FCC considers not only its pure quadratic effects contribution but also its higher overall desirability for thermal stability of PVC. For factorial design the optimum conditions were determined as 163.06 mg for ZnSt2, 399.99 mg for zeolite, and 140°C for temperature with desirability of 0.933. However, 400 mg for ZnSt2, 333.24 mg for zeolite, and 140°C for temperature with desirability of 0.956 were obtained as the optimum conditions by FCC design. © 2010 Wiley Periodicals, Inc. | URI: | http://doi.org/10.1002/app.31763 http://hdl.handle.net/11147/2732 |
ISSN: | 0021-8995 1097-4628 |
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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