一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

ChemicalBook >> journal list >> ACS Applied Materials & Interfaces >>article
ACS Applied Materials & Interfaces

ACS Applied Materials & Interfaces

IF: 8.3
Download PDF

Flexible Phase-Change Films with Exceptional Water and Temperature Resistance for Smart Personal Thermal Protection

Published:10 December 2024 DOI: 10.1021/acsami.4c20402
Ganlu Wang, Ling Liu, Siyuan Dou, Xueyan Hu, Sijia Ge, Meng Li, Xuan Zhang, Jin Wang

Abstract

Personal thermal protection is crucial in extreme temperature environments, and the rising global temperatures present significant challenges in managing heat stress for individuals. Phase-change materials (PCMs) can absorb or release heat during phase transition to maintain a constant temperature, thus making them ideal innovative thermal protection materials. However, it is currently a bottleneck issue for using PCMs in wearable thermal protection systems due to a balance between the mechanical properties, latent heat, temperature resistance, and rapid response on demand. Herein, a flexible composite PCM film is developed and demonstrated by incorporating superhydrophobic silica aerogel particles (SSAPs) in a cross-linked poly(ethylene glycol) (PEG) network. The cross-linked network effectively addresses the inherent solid–liquid phase-change issue of PCMs, providing self-support, high flexibility, and heat resistance. Meanwhile, the SSAP endows water resistance and synergistic thermal insulation properties to the PCM film. When the SSAP content is adjusted, a latent heat range of 113.1–146.9 J g–1 is achieved. Despite a lower latent heat of the PCM film than pure PEG films, a temperature drop of 13.8 °C is achieved at 80 °C, marking a 2.65-fold enhancement. Interestingly, the heating rate of the PCM film is decelerated by 275% compared to that of pure PEG cross-linked networks. This study not only proposes a strategy for preparing phase-change films with flexibility and temperature resistance but also demonstrates their feasibility of achieving lower latent heat while paradoxically enhancing thermal regulation capability.

Substances (3)

Materials
Procduct Name CAS Molecular Formula Supplier Price
Polyethylene Glycol 25322-68-3 (C2H4O)nH2O 1574 suppliers $5.00-$3550.00
Dichloromethane 75-09-2 CH2Cl2 1377 suppliers $10.00-$8660.00
Potassium bicarbonate 298-14-6 CHKO3 601 suppliers $6.00-$1550.00

Similar articles

IF:8.9

Review on sodium acetate trihydrate in flexible thermal energy storages: Properties, challenges and applications

Journal of energy storage Gang Wang , Chao Xu ,etc Published: 1 August 2021
IF:3.3

Andrographolide and its derivatives are effective compounds for gastrointestinal protection: a review.

European review for medical and pharmacological sciences D-W Wang, Y-J Xiang,etc Published: 1 March 2021
兰考县| 扶风县| 黄浦区| 崇州市| 汉川市| 衡水市| 湟源县| 会理县| 云浮市| 车险| 海原县| 甘泉县| 桐乡市| 衡水市| 宁德市| 美姑县| 崇信县| 永定县| 古田县| 绥芬河市| 泽州县| 霞浦县| 德化县| 郴州市| 开封县| 建湖县| 大安市| 观塘区| 台东县| 额敏县| 辛集市| 东源县| 鄂托克前旗| 印江| 钟祥市| 龙井市| 分宜县| 苍南县| 汉川市| 乃东县| 开封市|