Dynamic Property Evaluation of PLLA/PBSL Polymer Blends using Compressive and Tensile Split Hopkinson Bar Methods

Seiya KUNO; Masahiro NISHIDA; Ikuyo KAWASHIMA; Tetsuo TAKAYAMA; Mitsugu TODO

doi:10.11395/jjsem.12.s198

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Dynamic Property Evaluation of PLLA/PBSL Polymer Blends using Compressive and Tensile Split Hopkinson Bar Methods

Seiya KUNO, Masahiro NISHIDA, Ikuyo KAWASHIMA, Tetsuo TAKAYAMA, Mitsugu TODO

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Keywords: Poly(L-lactic acid), Poly (butylene succinate-co-L-lactate), Split Hopkinson Bar Method, Yield Stress, Fracture Surface Observation

JOURNAL FREE ACCESS

2012 Volume 12 Issue Special_Issue Pages s198-s204

DOI https://doi.org/10.11395/jjsem.12.s198

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Abstract

The compressive and tensile properties of PLLA/PBSL polymer blends (90/10, 80/20, 70/30) were measured using a universal testing machine and split Hopkinson bar methods. The yield stress of static and dynamic compressive tests for the polymer blends decreased gradually with increasing PBSL. When PLLA/PBSL=100/0, 90/10 and 80/20, a wave-like shape such as Mackerel pattern were observed on the fracture surfaces of specimens after the static tensile tests. The fracture surfaces after the dynamic tensile tests were flat.

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