Unverified88% confidenceDecision RuleTime unknown
冷冻用途须认准标注-18℃或-20℃以下耐低温的PE材质，普通PP袋在冷冻室会变脆开裂；HDPE/LDPE低温延展性优于PP
1
Sources
88%
Confidence
Long-term
Relevance
-
First Seen
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Unverified冷冻用途选择HDPE（高密度聚乙烯）材质，耐低温可达-40℃且不易脆裂；普通LDPE保鲜袋在-18℃冷冻室反复取放后容易变脆开裂90% similarUnverified标注HDPE（高密度聚乙烯）的保鲜袋耐温可达110℃可微波，LDPE（低密度聚乙烯）质地柔软但耐温约90℃，冷冻建议选PE材质且厚度≥0.01mm防脆裂85% similarUnverified冷冻室分隔板优先选PP（聚丙烯）材质，其脆化温度低于-20℃，能承受冷冻室-18℃至-24℃环境不开裂；避免普通PS（聚苯乙烯）或亚克力，这两种在-18℃以下易脆裂断裂84% similarUnverified冷藏门架长期处于2-8℃、冷冻区-18℃环境，普通PP塑料低温易脆裂，应选PET或ABS材质，冷冻区收纳需明确标注耐低温至-20℃84% similarUnverified冷冻室专用收纳盒必须选择PP材质且标注耐温范围-20℃以下，普通PET材质在-18℃冷冻环境下会变脆开裂83% similar
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