高性能輻射降溫布料
IEEE研究強調相關降溫技術研究
一項發表於《IEEE Journal of Selected Topics in Quantum Electronics》期刊的研究，評估了應用於梭織布料上的被動式日間輻射冷卻技術。研究結果顯示，含二氧化鋯納米粒子的矽基塗層，可有效沉積於玻璃纖維、碳纖維及凱夫拉纖維布料之上，達致 92.8% 至 96.5% 的高太陽反射率，以及 95.3% 至 96.3% 的紅外輻射率。
研究中，經塗層處理的冷卻布料在熱管理表現上優於未經處理的物料及市售棉布，其中玻璃纖維版本在直接日曬下，平均溫度較棉布低攝氏 8.3 度。這些塗層在經歷明火及反覆洗滌後，仍能保持其光學性能，同時維持透氣性及防水性。
這項研究特別針對以往被動冷卻布料的局限性——這些物料通常僅適用於近常溫環境，且容易在機械應力或極端高溫下退化。
圖片來源：《IEEE Journal of Selected Topics in Quantum Electronics》
英文原文
A study published in the IEEE Journal of Selected Topics in Quantum Electronics has evaluated passive daytime radiative cooling fabrics applied to woven fabrics. The findings demonstrate that silicone-based coatings containing zirconium oxide nanoparticles can be effectively deposited on glass fiber, carbon fiber, and Kevlar textiles to achieve high solar reflectance between 92.8% and 96.5% and infrared emissivity between 95.3% and 96.3%.
In the study, the coated cooling fabrics outperformed uncoated materials and commercial cotton in thermal management, with the glass fiber variant maintaining an average temperature 8.3 degrees Celsius lower than cotton under direct sunlight. The coatings retained their optical performance after exposure to flame and repeated washing cycles while preserving breathability and water resistance.
The research specifically addressed the limitations of previous passive cooling fabrics, which were typically designed for near-ambient conditions and tended to degrade under mechanical stress or extreme heat.
Image Credit: IEEE Journal of Selected Topics in Quantum Electronics
- 來源
- Trend Hunter
- 發布
- 2026-08-12
- 品類
- Science
- 出處
- ieeexplore.ieee.org