Unverified85% confidenceDecision RuleTime unknown
TPU防水层厚度0.02-0.03mm可兼顾防漏与透气，PVC或PU涂层虽便宜但闷热，长期卧床或婴幼儿建议选TPU复合层
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified防水层选TPU膜而非PU/PVC涂层，TPU厚度0.02-0.03mm时既能100%防液体渗透又保持透气，PVC涂层闷热且遇冷会变硬开裂85% similarUnverifiedTPU材质防水袋耐磨抗撕但硬挺不贴身，PVC更柔软便宜但低温易脆化，冬季或高海拔涉水选TPU（耐低温至-30℃），夏季日常选0.3mm PVC轻薄款84% similarUnverified材质厚度：TPU（热塑性聚氨酯）0.3mm以上耐磨抗撕适合装尖锐物和长期使用，PVC 0.5mm便宜但低温易变硬开裂，寒冷地区选TPU82% similarUnverified防水层选TPU材质优于PVC：TPU无塑化剂、透气性好、耐低温不易硬化开裂，PVC虽便宜但闷热、久用易脆化且可能含增塑剂82% similarUnverified防水层选TPU材质优于PVC/PEVA，TPU无异味、耐低温不易开裂、且可机洗，PVC遇冷易变硬且含增塑剂气味重82% similar
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