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科學家開發出一種超輕質的合成材料，觸感與蓬鬆的棉花極其相似，卻具備完全不吸水的特性。這項發表於《ACS Energy Letters》期刊的研究成果，未來可望應用於極端寒冷環境下的保暖服飾。
這項設計的靈感源自棉花本身的結構。由 Kuang Shi 領導的研究團隊在聚合物纖維中嵌入了含有相變碳氫化合物的微型膠囊。這些膠囊會隨氣溫變化而凝固或融化，進而協助調節熱能的保留或釋放。
與普通棉花不同，這種新型織物在潮濕環境中既不吸收水蒸氣，也不會滲透水滴。即便經過多次反覆彎折，它依然能保持乾燥並維持良好的柔軟度。
在實驗室測試中，該材料的表現優於棉花：在攝氏負 25 度的環境下，包裹在新型織物中的手臂明顯更加保暖。相反地，在室溫環境下，這種布料則能更有效地導熱，防止穿著者體溫過高。
經過 20 次洗滌後，該原型材料仍能保持蓬鬆且不掉纖維，並維持了 97% 的保暖能力。這使得該材料在日常衣物與專業戶外裝備的開發上展現出極大的潛力。
儘管目前仍處於原型階段，這項研發成果已成功結合了棉花的舒適度與合成纖維的實用性，且完全避開了兩者的典型缺點。
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