Unverified78% confidenceFactTime unknown
带TPU/PU防水膜内胆的宠物垫可阻挡液体渗入缓冲层，是判断是否耐脏耐用的关键内部结构，外观相同但有无内胆价格与实用性差异大
1
Sources
78%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified防水内胆越严密透气性越差，纯TPU防水膜会闷热导致宠物趴地板；建议选防水膜+透气网布的可拆分双层结构，兼顾防尿与散热83% similarUnverified防水防污涂层（TPU/PU背胶）与吸味安抚功能相互矛盾：防水层阻断气味渗透和呼吸感，安抚毯不应选全防水款，只需局部防泼水表面处理应对偶发尿渍即可82% similarUnverified有防水需求（儿童/老人/宠物）优先选TPU防水膜层而非PU涂层，TPU透气性更好且无异味，PU层用久后易出现塑料膜感闷热82% similarUnverified内胆防水看是否有『可拆卸PVC/TPU防水底垫+围边』，仅底部防水不够，宠物应激排尿会顺着接缝渗出；理想结构是可拆洗防水内胆能整体取出冲洗81% similarUnverified防水防污款需认准TPU复合涂层或PU涂层，能挡住宠物尿液和呕吐渗入沙发；仅标注'泼水面料'（表面拒水喷涂）的耐久性差，洗几次后防水失效81% similar
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