頑丈で熱隔離されたセルロースの多孔膜は,耐久的で効率的な放射冷却を可能にします
Xinxin Chen1, Mengxiang Dang1, Longfei Sun2
1School of Materials Science and Engineering, State Key Laboratory of Bio-based Fiber Materials, Zhejiang Sci-Tech University, Hangzhou, 310018, China; Zhejiang Provincial Innovation Center of Advanced Textile Technology, Shaoxing, 312000, China.
Carbohydrate polymers
|February 19, 2026
まとめ
この研究では,六角性酸ボロン (BN) を統合することにより,耐久性の高いセルロース放射性冷却フィルムを開発しました. これらの環境に優しい材料は,効率的な受動的な冷却のために,高い太陽反射率と赤外線放射性を達成します.
科学分野:
- マテリアルサイエンス 材料科学
- ナノテクノロジー ナノテクノロジー
- 持続可能なエネルギー 持続可能なエネルギー
背景:
- セルロースベースの放射冷却器は,環境に優しい受動的な冷却を提供しますが,低太陽反射率と劣った耐久性に苦しんでいます.
- 既存の材料は,実用的なアプリケーションの性能と寿命の要求を満たすために強化する必要があります.
研究 の 目的:
- セルロースベースの放射性冷却材料の太陽反射率と環境耐久性を高めるために.
- 効率的な受動的な冷却のために,頑丈で熱隔離されたセルロース複合フィルムを開発する.
主な方法:
- 六角性ボンニトリド (BN) をセルロースマトリックスに統合して,多孔性の複合膜 (RPCFBN-40) を作る.
- フィルムの多孔構造,太陽光反射率,赤外線放射性,熱絶縁性に関する特徴.
- 様々な条件下での放射性冷却性能の評価とUV老化の耐久性の評価.
主要な成果:
- RPCFBN-40フィルムは95.69%の高い太陽反射率と0.89.89の赤外線放射性を示しました.
- 81.31%の熱遮断比率で,例外的な保温が達成されました.
- 太陽光下では最大19°Cの気温が低下し,360時間の紫外線老化後に性能が維持された.
結論:
- BNの統合は,セルロース放射性冷却フィルムの太陽反射率と機械的性質の両方を効果的に強化します.
- 開発されたセルロース複合膜は,高効率で耐久性の高い被動放射冷却能力を実証しています.
- この研究は,さまざまな環境条件に適した先進的で環境に優しい放射性冷却材料の製造のための実行可能な戦略を提示しています.
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