Unverified83% confidenceCautionTime unknown
所谓'降解垃圾袋'多为PBAT+PLA全生物降解或添加淀粉的可降解,前者需工业堆肥条件才真正降解,家庭环境和填埋场降解效果有限,别为营销概念多付费
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83%
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Long-term
Relevance
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Unverified标称'可降解'的垃圾袋多为PBAT+PLA全生物降解或添加淀粉,前者需工业堆肥条件才能降解、家庭环境几乎不降解;后者强度和防漏性通常低于普通PE袋93% similarUnverified标榜'可降解'的PLA/PBAT生物基垃圾袋普遍强度低于普通PE袋、易变脆漏液,且需工业堆肥条件才能真正降解,家用填埋场景降解效果有限;除非当地垃圾处理为堆肥体系,否则环保收益打折而实用性下降90% similarUnverified所谓'可降解'需区分:PLA/PBAT全生物降解袋需工业堆肥条件才真正分解,家庭填埋环境降解极慢;'光降解/氧化降解'只是碎成微塑料,环保意义有限87% similarUnverified以PBAT+PLA为主材,属工业堆肥可降解而非家庭自然降解,普通垃圾填埋环境下降解效果有限87% similarUnverified标注'可堆肥降解'(compostable, 符合EN13432或ASTM D6400)的袋子需要工业堆肥环境才能分解,普通垃圾填埋场几乎无法降解,若城市不做垃圾堆肥处理则实际环保意义有限84% similar
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