Unverified75% confidenceTradeoffTime unknown
透明度与耐用度存在矛盾：高透明TPU抗老化但偏硬易在折角处泛白，软PVC柔软但长期接触酒精类化妆品会发黄变浑浊
1
Sources
75%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified透明度与防黄变天然矛盾：越通透的纯净TPU越容易氧化发黄，抗黄变的PC或加涂层材质初始通透度和柔软手感会略打折扣82% similarUnverifiedTPU材质相比PVC更柔软耐低温、不易发硬开裂，但长期暴晒后仍会老化发黄，影响透明度和触屏灵敏度81% similarUnverified透明度与防护持久性存在权衡：透明成膜配方美观但膜层薄、耐磨性弱；含树脂或有色（如黄色Duraphat）配方遮盖力强、持久，但涂后数小时内牙面偏黄，社交场合前需权衡79% similarUnverified透明可视与耐用性权衡：全透明PVC/TPU方便找物但易被紫外线老化发黄脆化，纯色尼龙防水布（PU涂层）更耐磨耐用但看不到内容，长期户外优先尼龙78% similarUnverified透明度越高的PVC材质通常越薄越易划伤，长期反复使用会发黄雾化；追求耐用可选TPU材质，透光稍差但抗老化、不易脆裂78% similar
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