4.8 Article

Compostability and biodegradation study of PLA-wheat straw and PLA-soy straw based green composites in simulated composting bioreactor

Journal

BIORESOURCE TECHNOLOGY
Volume 101, Issue 21, Pages 8489-8491

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2010.06.053

Keywords

Biodegradation; Compost; Composites; Polylactic acid; Aerobic composting facility

Funding

  1. Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) - University of Guelph
  2. Ontario BioCar Initiative
  3. Ontario Premier's Research Chair Fund
  4. Ontario Soybean Grower's Fund

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A laboratory scale simulated composting facility (as per ASTM D 5338) was designed and utilized to determine and evaluate the extent of degradation of polylactic acid (PLA), untreated wheat and soy straw and injection moulded composites of PLA-wheat straw (70:30) and PLA-soy straw (70:30). The outcomes of the study revealed the suitability of the test protocol, validity of the test system and defined the cornpostability of the composites of PLA with unmodified natural substrate. The study would help to design composites using modified soy straw and wheat straw as reinforcement/filler to satisfy ASTM D 6400 specifications. (C) 2010 Elsevier Ltd. All rights reserved.

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