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

當前位置:群英聚首 > 論文著作 > 正文
Concurrent Superhydrophobicity and Thermal Energy Storage of Microcapsule with Superior Thermal Stability and Durability
來源:吳剛副研究員個人網(wǎng)站 發(fā)布日期:2018-11-14
作者:Gang Wu*, Congjin Hu, Junyi Cui, Si-Chong Chen, and Yu-Zhong Wang*
關鍵字:Superhydrophobicity,Thermal Energy Storage, Microcapsule
論文來源:期刊
具體來源:ACS Sustainable Chem. Eng.
發(fā)表時間:2017年
Despite considerable success in design and preparation of superhydrophobic particles, a facile and low-cost approach to develop multifunctional particles, especially microcapsules with the integrated performances of intrinsically long-lasting and highly stable superhydrophobicity and other passive/active functionalities, remains extremely challenging and is still in its infancy. Herein, we report a microcapsule (MC) with a micro/nano-hierarchical shell and a phase change material (PCM) core by a low-cost one-pot method. The resulting microcapsules (MCs) possess concurrent features of superhydrophobicity and thermal energy storage. Against thermal attack up to approximately 240 °C, the microstructure of MCs is nearly intact to avoid an obvious leakage of encapsulated PCM at high temperature, and meanwhile superhydrophobicity of MCs is enhanced unexpectedly to a static contact angle (CA) of 167.4 ± 0.3° and slide angle (SA) of 5 ± 0.5°. After conventional storage of 80 days, MCs still show a good superhydrophobicity with a nearly constant CA and slightly increasing SA. In addition, encapsulated PCM has high enthalpy up to 176 J/g, nearly unchanged Tm, Tom, and Tos, and negligible change (less than 0.1%) of normalized melting and solidified enthalpies over 100 melting/solidification cycles, indicating high latent heat, low effect of shell on thermal diffusion, and excellent durability during phase transition cycling, respectively. An isothermal stage at around 28 and 26 °C being close to human comfort temperature appears separately in heating-up and cooling-down processes of the epoxy matrix with embedded MCs, revealing a good temperature-regulated property of MCs. Accordingly, the MCs as a promising candidate with all-in-one features of superhydrophobicity, temperature-regulated properties, thermal-resistance, and durability would stimulate wide applications in self-cleaning/energy-saving smart buildings and facilities.
Copyright © 2005 Polymer.cn All rights reserved
中國聚合物網(wǎng) 版權所有
經(jīng)營性網(wǎng)站備案信息

京公網(wǎng)安備11010502032929號

工商備案公示信息

京ICP證050801號

京ICP備12003651號

主站蜘蛛池模板: 舒城县| 偏关县| 驻马店市| 祁东县| 元谋县| 噶尔县| 伊春市| 安陆市| 师宗县| 益阳市| 河曲县| 河东区| 静安区| 宁陵县| 仲巴县| 华坪县| 富源县| 新野县| 宾阳县| 黎平县| 乐至县| 临高县| 长垣县| 厦门市| 永登县| 大渡口区| 来宾市| 宜都市| 海口市| 华坪县| 宁强县| 海丰县| 玉环县| 栾城县| 德格县| 东乌珠穆沁旗| 徐州市| 绥滨县| 大石桥市| 佛教| 山阴县|