Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2431
Title: Effect of additives on flexible PVC foam formation
Authors: Demir, Hasan
Sipahioğlu, Muzaffer
Balköse, Devrim
Ülkü, Semra
Keywords: Foams
Compression
Natural zeolites
PVC
Luffa cylindrical
Publisher: Elsevier Ltd.
Source: Demir, H., Sipahioğlu, M., Balköse, D., and Ülkü, S. (2008). Effect of additives on flexible PVC foam formation. Journal of Materials Processing Technology, 195(1-3), 144-153. doi:10.1016/j.jmatprotec.2007.04.123
Abstract: In this study, effects of Ca/Zn stearate and organotin heat stabilizers and zeolite, CaCO3, cellulose and luffa flours fillers, and their concentrations (2.5, 5, 10 and 20% by weight) on production of flexible PVC foams by chemical blowing agent, azodicarbonamide were investigated. Foam morphology, foam density, compressive mechanical properties and water uptake capacities of samples were determined. Morphology of the sample without any filler showed that employment of Ca stearate and Zn stearate heat stabilizers instead of organotin stabilizers increases foam formation and decreases pore sizes and regularity in pore size distribution. Foams having organotin stabilizer were more resistant to heat than the ones with Ca/Zn stearate for long heating periods. Foams, including organotin-based heat stabilizers, have compact structure. It was observed that, samples containing zeolite, CaCO3, cellulose or luffa flour had lower pore volume but higher Young's modulus and stress values compared to unfilled samples.
URI: http://doi.org/10.1016/j.jmatprotec.2007.04.123
http://hdl.handle.net/11147/2431
ISSN: 0924-0136
0924-0136
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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