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Evaluation of Biodegradation-Promoting Additives for Plastics

机译：塑料生物降解促进剂的评价

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摘要

Biodegradation-promoting additives for polymers are increasingly being used around the world with the claim that they effectively render commercial polymers biodegradable. However, there is a lot of uncertainty about their effectiveness in degrading polymers in different environments. In this study, we evaluated the effect of biodegradation-promoting additives on the biodegradation of polyethylene (PE) and polyethylene terephthalate (PET). Biodegradation was evaluated in compost, anaerobic digestion, and soil burial environments. None of the five different additives tested significantly increased biodegradation in any of these environments. Thus, no evidence was found that these additives promote and/or enhance biodegradation of PE or PET polymers. So, anaerobic and aerobic biodegradation are not recommended as feasible disposal routes for nonbiodegradable plastics containing any of the five tested biodegradation-promoting additives.
机译：用于聚合物的促进生物降解的添加剂在世界范围内越来越多地被使用，声称它们有效地使商业聚合物具有生物降解性。然而，关于它们在不同环境中降解聚合物的有效性存在很多不确定性。在这项研究中，我们评估了促进生物降解的添加剂对聚乙烯（PE）和聚对苯二甲酸乙二醇酯（PET）的生物降解的影响。在堆肥，厌氧消化和土壤掩埋环境中对生物降解进行了评估。在所有这些环境中，测试的五种不同添加剂均未显着增加生物降解性。因此，没有发现这些添加剂促进和/或增强PE或PET聚合物的生物降解的证据。因此，不建议将厌氧和好氧生物降解作为含有五种经过测试的促进生物降解的添加剂中任何一种的不可生物降解塑料的可行处置途径。

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  • 来源
    《Environmental Science & Technology》 |2015年第6期|3769-3777|共9页
  • 作者

    Susan Selke; Rafael Auras; Tuan Anh Nguyen; Edgar Castro Aguirre; Rijosh Cheruvathur; Yan Liu;

  • 作者单位

    School of Packaging, Michigan State University, East Lansing, Michigan 48824, United States;

    School of Packaging, Michigan State University, East Lansing, Michigan 48824, United States;

    School of Packaging, Michigan State University, East Lansing, Michigan 48824, United States;

    School of Packaging, Michigan State University, East Lansing, Michigan 48824, United States;

    School of Packaging, Michigan State University, East Lansing, Michigan 48824, United States;

    Biosystems and Agricultural Engineering, Michigan State University, East Lansing, Michigan 48824, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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