Please use this identifier to cite or link to this item: http://cmuir.cmu.ac.th/jspui/handle/6653943832/58733
Title: Biodegradable Compatibilized Poly(l-lactide)/Thermoplastic Polyurethane Blends: Design, Preparation and Property Testing
Authors: Kanyarat Suthapakti
Robert Molloy
Winita Punyodom
Kanarat Nalampang
Thanawadee Leejarkpai
Paul D. Topham
Brian J. Tighe
Keywords: Environmental Science
Materials Science
Issue Date: 1-May-2018
Abstract: © 2017, Springer Science+Business Media, LLC. Biodegradable blends of poly(l-lactide) (PLL) toughened with a polycaprolactone-based thermoplastic polyurethane (TPU) elastomer and compatibilized with a purpose-designed poly(l-lactide-co-caprolactone) (PLLCL) copolymer were prepared. Both 2-component (PLL/TPU) and 3-component (PLL/TPU/PLLCL) blends of various compositions were prepared by melt mixing, hot-pressed into thin films and their properties tested. The results showed that, although the TPU could toughen the PLL, the blends were immiscible leading to phase separation with the TPU domains distributed in the PLL matrix. However, addition of the PLLCL copolymer could partially compatibilize the blend by improving the interfacial adhesion between the two phases. Biodegradability testing showed that the blends were biodegradable and that the PLLCL copolymer could increase the rate of biodegradation under controlled composting conditions. The 3-component blend of composition PLL/TPU/PLLCL = 90/10/10 parts by weight was found to exhibit the best all-round properties.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85024500610&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/58733
ISSN: 15662543
Appears in Collections:CMUL: Journal Articles

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