成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

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
Dichloromethane 75-09-2 CH2Cl2 1287 suppliers $8660.00
Polyethylene Glycol 25322-68-3 (C2H4O)nH2O 1135 suppliers $5.00-$3550.00
Potassium bicarbonate 298-14-6 CHKO3 498 suppliers $6.00-$1480.00

Similar articles

IF:3.7

Effect of Graphene Oxide on Phase Change Materials Based on Disodium Hydrogen Phosphate Dodecahydrate for Thermal Storage

Neural Regeneration Research Kaiyue Huang, Jinhong Li*,etc Published: 17 June 2020
IF:8.9

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

Neural Regeneration Research Gang Wang , Chao Xu ,etc Published: 1 August 2021
IF:3.3

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

Neural Regeneration Research D-W Wang, Y-J Xiang,etc Published: 1 March 2021