Unverified85% confidenceTradeoffTime unknown
TPU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
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85%
Confidence
Long-term
Relevance
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UnverifiedTPU材质相比PVC更轻薄柔软、环保无异味，但薄壁结构在尖锐物品刮擦或长期暴晒下更容易老化破损91% 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89% similarUnverified透明PVC材质卡套长期紫外线照射会黄变发脆，若卡套需长期挂窗边或户外使用，选TPU材质，抗黄变和抗撕裂性能明显优于PVC85% 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83% similarUnverified透明TPU材质长期使用会因紫外线和油脂氧化泛黄，照片壳如需长期保持背景通透感，应选PC硬壳或明确标注抗黄化处理的材质82% similar
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