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首页> 外文期刊>Journal of Polymers and the Environment >Biodegradation Of Compostable Plastics In Green Yard-waste Compost Environment
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Biodegradation Of Compostable Plastics In Green Yard-waste Compost Environment

机译：绿色垃圾堆肥环境中可堆肥塑料的生物降解

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摘要

Compostable plastic materials, produced from polylactic acid (PLA), corn starch, or sugarcane, degraded in a green yard-waste compost environment. The compostable plastics claim to meet ASTM D6400 standards for biodegradation, sustainable plant growth, and eco-toxicity. Biodegradation was measured by disintegration studies over 20 weeks. The commercially available compostable products, made from PLA, sugarcane, or corn starch, bio-degraded while in a commercial compost facility with other common yard waste compostable items. The PLA container, cup, and knife completely degraded in 7 weeks at a rate similar to the Avicell micro-cellulose control. The corn starch-based trash bag and sugarcane plate degraded at a similar rate as the Kraft paper control. The three materials degraded between 80% and 90% after 20 weeks.
机译：由聚乳酸（PLA），玉米淀粉或甘蔗制成的可堆肥塑料材料，在绿色的垃圾堆肥环境中降解。该可堆肥塑料声称符合生物降解，植物可持续生长和生态毒性方面的ASTM D6400标准。通过20周的崩解研究来测量生物降解。由PLA，甘蔗或玉米淀粉制成的市售可堆肥产品，在商业堆肥设施中与其他普通院子的可堆肥物品一起被生物降解。 PLA容器，杯和刀在7周​​内以与Avicell微纤维素对照相似的速率完全降解。玉米淀粉基垃圾袋和甘蔗板的降解速度与牛皮纸对照纸相似。 20周后，这三种材料的降解率在80％至90％之间。

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