Journal
POLYMER TESTING
Volume 32, Issue 2, Pages 299-305Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymertesting.2012.11.012
Keywords
Poly (lactic acid) (PLA); UFPR; Toughening
Funding
- National Natural Science Foundation of China (NSFC) [21034005, 51121001]
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A unique ultrafine full-vulcanized powdered ethyl acrylate rubber (EA-UFPR) was used as the toughening modifier for poly (lactic acid) (PLA). Largely improved tensile toughness was successfully achieved with the incorporation of only 1 wt% EA-UFPR, while the tensile strength and modulus of the blends were almost the same as pure PLA. The highly efficient toughening of PLA by UFPR is mainly ascribed to the strong interfacial interaction between PLA and UFPR and good dispersion of UFPR particles in PLA matrix. Our work provides an effective toughening method to largely improve the mechanical properties of PLA without sacrificing its stiffness, which is very important for the wide application of PLA materials. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
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