私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

相關(guān)鏈接
聯(lián)系方式
  • 通信地址:江蘇省南京市江寧區(qū)東南大學(xué)路2號:化學(xué)化工學(xué)院化工老樓514室
  • 郵編:211189
  • 電話:18936881048
  • 傳真:
  • Email:fchem@163.com
當(dāng)前位置:> 首頁 > 論文著作 > 正文
Cellulose-based porous polymer film with auto-deposited TiO2 as spectrally selective materials for passive daytime radiative cooling
作者:Chen, X (Chen, Xi) [1] ; He, M (He, Man) [1] ; Feng, SJ (Feng, Shuangjiang) [1] ; Xu, ZJ (Xu, Zhengj
關(guān)鍵字:Passive radiativeDaytime coolingPorous structureCellulose acetatePolymer matrix composite
論文來源:期刊
發(fā)表時間:2021年
Passive daytime radiative cooling materials significantly alleviate the current energy shortage and global warming without consuming any energy. However, conventional inorganic nanoparticles can hardly achieve excellent cooling effect during daytime due to their low reflectivity. Broadband super white nanoparticle-based radiators demonstrate excellent solar reflectivity under direct sunlight and low absorption. Accordingly, we introduced TiO2 nanoparticles with the advantages of high refractive index, high infrared emissivity and low solar absorption into the porous cellulose-based film via a facile phase separation strategy. The cavities were distributed around 5 mu m in size due to the limited evaporation of solvents, while the introduction of TiO2 nanoparticles effectively enhanced the solar reflectance to 0.97. Moreover, the scattering model demonstrated that the high solar reflectivity was mainly produced by the randomly agglomerate effect of nanoparticles and these nano-clusters also contribute to a high mid-infrared emissivity. As a result, the photonic film presented about 10 degrees C cooling capacity even under the high-density solar radiation (similar to 897 W/m(2)) according to the out-door measurement. The random nano-clusters filling strategy avoids the complicate process of specific size particles and has a significant potential for propel the polymer-based cooling technology to satisfy the need of large-scale thermal management.
主站蜘蛛池模板: 桂东县| 丹寨县| 扎兰屯市| 民勤县| 上饶县| 军事| 金寨县| 邵阳县| 蒙自县| 庆城县| 山东省| 莱州市| 茶陵县| 南部县| 云阳县| 赣州市| 缙云县| 长春市| 分宜县| 诏安县| 孙吴县| 黑龙江省| 宣恩县| 乐业县| 兰溪市| 尼勒克县| 玉溪市| 高要市| 闽侯县| 巴彦淖尔市| 鄄城县| 吉首市| 政和县| 比如县| 鹤壁市| 司法| 墨竹工卡县| 平南县| 长兴县| 会理县| 灌云县|