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Degradation of Poly(lactic acid) and Poly(butylene adipate-co-terephthalate) Blends in Compost
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  • Journal title : Textile Science and Engineering
  • Volume 52, Issue 5,  2015, pp.338-343
  • Publisher : The Korean Fiber Society
  • DOI : 10.12772/TSE.2015.52.338
 Title & Authors
Degradation of Poly(lactic acid) and Poly(butylene adipate-co-terephthalate) Blends in Compost
Im, Jung Nam; Doh, Song Jun; Kim, Yoon Jin; Yuu, Jungjo;
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Geotextiles are used extensively to protect soil from erosion. In this study, we evaluated the mechanical properties and degradation behaviors of poly(lactic acid)/poly(butylene adipate-co-terephthalate) (PLA/PBAT) blends. The incorporation of PBAT to PLA decreased the tensile strength and modulus but increased the elongation at break of the blends. Tensile strength and elongation of the PLA/PBAT blend resins were dramatically improved by incorporating a chain extender. When PLA/PBAT blends were composted under , 90% RH conditions, they showed two-stage degradation and completely lost their mechanical properties after 40 weeks. The PBAT-dominant blend (PLA/PBAT 40/60) showed slightly slower degradation than the PLA-dominant blend (PLA/PBAT 60/40).
polylactic acid;poly(butylene adipate-co-terephthalate);blend;degradation;compost;
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