Journal
EUROPEAN POLYMER JOURNAL
Volume 71, Issue -, Pages 534-546Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2015.08.029
Keywords
Poly(lactic acid); Poly(butylene succinate); Blend; Co-continuous phase
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Funding
- Engineering & Physical Sciences Research Council (EPSRC)
- Department of Materials, Loughborough University
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Synergistic effects of blending two bio-based, bio-degradable polymers, poly(butylene succinate) (PBS) and poly(lactic acid) (PLA) are investigated. A series of melt-blended compounds were prepared at PBS/PLA weight ratios of 0/100, 10/90, 20/80, 40/60, 60/40, 80/20 and 100/0. Thermal properties, crystallinity, melt viscosities, mechanical properties and phase morphology were studied. There was found to be a dramatic improvement in ductility, over 250% elongation-to-break, with as little as 10 wt% of PBS added. This was shown to be due to a co-continuous phase morphology, which was determined by the relative viscosities of the components. (C) 2015 Elsevier Ltd. All rights reserved.
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