Unverified82% confidenceTradeoffTime unknown
阻隔性/锁鲜能力越强的材质（PVDC>PVC>PE）价格越高，日常冷藏剩菜用PE已足够，无需为短期使用买高阻隔膜
1
Sources
82%
Confidence
Long-term
Relevance
-
First Seen
Sources
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UnverifiedPVDC（聚偏二氯乙烯）保鲜膜阻隔性最强（防氧防水汽），保鲜时间显著优于PE，但价格高2-3倍，适合长期冷冻肉类或熟食84% similarUnverifiedPVDC（聚偏二氯乙烯）阻隔性最强，锁水保鲜效果优于PE，适合长期冷藏或熟食保鲜；但价格高、不可微波、切割较费力，日常家用性价比不如PE83% similarUnverified包裹熟食、肉类、油性食物应选PE或PVDC材质，PE安全无增塑剂但粘附力弱，PVDC阻隔性最好且安全但价格较高81% similarUnverifiedPVC粘附力最强、透明度高、拉伸贴合好，PE粘附力较弱但更安全；追求包碗封口效果好且不介意仅包生鲜可选PVC，家用高频接触食物首选PE81% similarUnverifiedPVC保鲜膜粘附力和延展性明显优于PE，能紧密贴合碗口和不规则容器，超市和餐饮多用PVC；PE粘附力弱但更安全，家用建议接受PE略差的封口效果换取安全性80% similar
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