Preparation and property testing of compatibilized poly(l -lactide)/thermoplastic polyurethane blends

Preparation and property testing of compatibilized poly(l -lactide)/thermoplastic polyurethane blends

© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Poly(l-lactide) (PLL) has been blended with a polycaprolactone-based thermoplastic polyurethane (TPU) elastomer as a toughening agent and a poly(l-lactide-co-caprolactone) (PLLCL) copolymer as a compatibilizer. Both 2-component (PLL/TPU) and 3...

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Bibliographic Details
Main Authors: Kanyarat Suthapakti, Robert Molloy, Winita Punyodom, Kanarat Nalampang, Thanawadee Leejarkpai, Paul D. Topham, Brian J. Tighe
Format: Journal
Published: 2018
Subjects:
Chemistry
Materials Science
Physics and Astronomy
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84940109496&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/54307
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Institution: Chiang Mai University
Description
Summary:© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Poly(l-lactide) (PLL) has been blended with a polycaprolactone-based thermoplastic polyurethane (TPU) elastomer as a toughening agent and a poly(l-lactide-co-caprolactone) (PLLCL) copolymer as a compatibilizer. Both 2-component (PLL/TPU) and 3-component (PLL/TPU/PLLCL) blends were prepared by melt mixing, characterized, hot-pressed into thin sheets and their tensile properties tested. The results showed that, although the TPU could toughen the PLL, the blends were largely immiscible leading to phase separation. However, addition of the PLLCL copolymer improved blend compatibility. The best all-round properties were found for the 3-component blend of composition PLL/TPU/PLLCL = 90/10/10 parts by weight.

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