Bioproducts Discovery and Development Centre (BDDC), Department of Plant Agriculture, University of Guelph, Guelph, Ontario, Canada N1G 2W1.
Bioresour Technol. 2010 Nov;101(21):8489-91. doi: 10.1016/j.biortech.2010.06.053. Epub 2010 Jul 1.
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 compostability 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.
设计并利用实验室规模模拟堆肥设施(符合 ASTM D 5338 标准),以确定和评估聚乳酸(PLA)、未经处理的小麦和大豆秸秆以及 PLA-小麦秸秆(70:30)和 PLA-大豆秸秆(70:30)注塑复合材料的降解程度。研究结果表明,该测试方案具有适用性,测试系统具有有效性,并确定了 PLA 与未改性天然基质复合材料的可堆肥性。该研究将有助于设计使用改性大豆秸秆和小麦秸秆作为增强/填充剂的复合材料,以满足 ASTM D 6400 规范。