Highly efficient toughening effect of ultrafine full-vulcanized powdered rubber on poly(lactic acid)(PLA) |
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| Authors: | Qinna Zhao Yu Ding Biao Yang Nanying Ning Qiang Fu |
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| Affiliation: | 1. College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China;2. CSR Zhuzhou Electric Locomotive Research Institute Co., Ltd., Zhuzhou 412001, China |
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| Abstract: | 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. |
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