多様性超冷却繊維は,すべてのシナリオで受動的な高熱コンフォート
Chengfeng Ding1, Ping Gao1, Xianfeng Wang1,2
1State Key Laboratory of Advanced Fiber Materials, College of Textiles, Donghua University, Shanghai, 201620, China.
Advanced materials (Deerfield Beach, Fla.)
|August 21, 2025
まとめ
この研究は,放射性,伝導性,蒸発性冷却を組み合わせた多式超冷却繊維を導入します. この高度な繊維は,様々な条件下で温度を大幅に低減し,個人の熱的快適性を向上させます.
科学分野:
- 材料科学
- 繊維工学
- 熱管理
背景:
- 地球の気温が上昇しているため パーソナル・コンフォート・ソリューションが 必要になっています
- 既存の放射性冷却用繊維は,高温,高湿の条件下では効率が低いことが多い.
- 現在の繊維の限界は,さまざまな環境シナリオで効果的な冷却を妨げています.
研究 の 目的:
- 放射性,伝導性,蒸発性冷却メカニズムを統合した多式超冷却繊維 (MST) を開発する.
- 放射性特性を損なうことなく,様々なシナリオで冷却性能を向上させる.
- パーソナル・ 熱・ 湿度管理のための 汎用的なソリューションを提供する
主な方法:
- 1Dの単一繊維に2Dのボロンニトリドナノシートを統合した3Dのカッティング戦略が採用されました.
- 超高反射率 (97.30%) を高反射効率で達成した.
- 3D熱伝導ネットワークによる全方向的な熱分散と,ジャヌス湿潤構造を用いた単方向的な水分流出を確立した.
主要な成果:
- マルチモダル・スーパークーリング・テキスタイル (MST) は,屋外太陽光下でのコットンと比較して20°Cの温度低下を示した.
- 暑くて湿った環境でも綿よりも2°Cの冷却優位性がある.
- 平面内 (2.40 W m−1 K−1) と平面外 (0.33 W m−1 K−1) の熱伝導性が高い.
- 1547%の高い水分輸送指数を示した.
結論:
- 開発されたMSTは,優れた熱管理のための複数の冷却メカニズムを効果的に統合しています.
- この技術は複雑な環境における 個人の熱と水分調節のための有望な戦略を提供します.
- マルチモダルのアプローチは,放射性冷却繊維のみの限界を克服します.
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