「發熱衣」根本不可能發熱!台大化工博士:遠紅外線、纖維吸溼放熱的真相是... #LINETODAY

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「吸濕放熱」係衣服材質吸收了人體皮膚表面所逸散的水氣,變成液態的汗水吸存在衣物纖維內,從水氣到液態水的過程,是一種動態的動能轉換,因而釋出熱量,讓皮膚感受到熱能。

References

http://news.ltn.com.tw/news/life/paper/640318
吸濕放熱、蓄熱保暖原理

吸濕放熱、蓄熱保暖原理 - 生活 - 自由時報電子報

2012-12-23市售發熱衣通常會在前10分鐘之內達到「增溫」極限(一般為2至5度),之後便會慢慢下降,可是衣服為什麼會「發熱」呢?原理大致有「吸濕放熱」和「蓄熱保暖」兩類: 遠紅外線吸熱儲存原理 發熱衣保暖原理 「吸濕放熱」係衣服材質吸收了人體皮膚表面所逸散的水氣,變成液態的汗水吸存在衣物纖維內,從水氣到液態水的過程,是一種動態的動能轉換,因而釋

http://news.ltn.com.tw/news/life/paper/640318

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