Thermal and mechanical properties of poly(lactic Acid) and poly(ethylene/butylene Succinate) blends |
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Authors: | X Liu M Dever N Fair R S Benson |
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Institution: | (1) Department of Textile, Retail and Consumer Sciences, University of Tennessee, 230 Jessie Harris Building, 1215 West Cumberland Avenue, 37996-1900 Knoxville, Tennessee;(2) Department of Materials Science and Engineering, University of Tennessee, 37996 Knoxville, Tennessee |
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Abstract: | In this study, blends of poly (lactic acid) (PLA) with poly(ethylene/butylene succinate) (Bionolle) have been investigated
for their thermal and mechanical properties as a function of the concentration of Bionolle. Differential scanning calorimetry
(DSC), dynamic mechanical analysis (DMA), and tensile tests were used to characterize the blends. From the results of the
DMA and DSC, it was found that this blend system was not miscible within the compositions studied. DSC results showed that
adding Bionolle aids in crystallization of PLA. It was observed that increasing the Bionolle concentration led to a slight
increase in the strain-at-break of the blends but a decrease in the Young’s modulus and ultimate tensile strength. Biaxially
oriented films showed an increase in tensile strength, modulus, and strain-at-break. |
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Keywords: | Poly(lactic acid) Bionolle poly(ethylene/butylene succinate) blends |
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