[KongchangAI]
Unverified82% confidenceDecision RuleTime unknown

PVA/PVC类物理凝胶冷感头巾降温效果持续1-2小时,需重新浸水激活;而依靠木糖醇/黄原胶涂层的化学吸热面料仅在初次接触瞬间凉感明显(Q-max≥0.2 W/cm²),持续性差,仅适合短时间遮阳

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82%
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Long-term
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