用于高级防火和监控的三维各向异性多功能复合有机水凝胶

IF 10.5 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Pub Date : 2024-11-20 DOI:10.1016/j.carbon.2024.119846

Chenxing Xiang , Yuanhao Tian , Huiming Ning , Ning Hu , Libin Zhao , Feng Liu , Shu Wang , Rui Zou , Jie Wen

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引用次数: 0

摘要

火灾带来巨大风险，导致生命、财产和文化遗产的损失。传统的防火材料在效率和智能监控方面面临挑战，再加上坠落和撞击等次生危险。因此，人们对兼具坚固力学、灭火和先进检测功能的创新型防护材料的需求与日俱增。在本研究中，我们探索了在聚乙烯醇（PVA）/甘油有机水凝胶（OHG）基质中使用还原氧化石墨烯（rGO）改性三维间隔织物作为增强相，形成新型三维织物增强各向异性复合 OHG。这种多功能复合 OHG 具有出色的机械强度、环境稳定性、更强的阻燃性和智能传感性能。织物增强材料的加入大大提高了 OHG 的抗压和抗冲击性能。复合 OHG 的各向异性结构与 OHG 基体相结合，大大增强了阻燃性，而其双重电子和离子导电性则提高了整体电气性能。这种协同作用可实现高灵敏度和高稳定性的实时压缩监测，并通过蓝牙模块进行无线冲击事件记录。此外，复合 OHG 的各向异性导热性还能产生热电效应，从而实现自供电火灾报警系统。这种开创性的方法引入了具有协同能力的多功能智能 OHG 复合材料，为先进保护和智能消防应用提供了新的前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

A 3D anisotropic multifunctional composite organohydrogel for advanced fire protection and monitoring

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A 3D anisotropic multifunctional composite organohydrogel for advanced fire protection and monitoring

Fires pose significant risks, leading to loss of life, property, and cultural heritage. Conventional fire protection materials encounter challenges in efficiency and intelligent monitoring, compounded by secondary hazards such as falls and impacts. Hence, there's increasing demand for innovative protective materials that combine robust mechanics, fire suppression, and advanced detection. In this study, we explore the use of reduced graphene oxide (rGO)-modified 3D spacer fabrics as a reinforcing phase within a polyvinyl alcohol (PVA)/glycerol organohydrogel (OHG) matrix, forming a novel 3D fabric-reinforced anisotropic composite OHG. This multifunctional composite OHG exhibits outstanding mechanical strength, environmental stability, enhanced flame retardancy, and smart sensing properties. The integration of fabric reinforcement significantly improves the OHG's compressive and impact resistance. The composite OHG's anisotropic structure, in conjunction with the OHG matrix, greatly enhances flame retardancy, while its dual electronic and ionic conductivities improve overall electrical performance. This synergy enables real-time compression monitoring with high sensitivity and stability, facilitated by a Bluetooth module for wireless impact event recording. Furthermore, the composite OHG's anisotropic thermal conductivity enables a thermoelectric effect, leading to self-powered fire alarm systems. This pioneering approach introduces multifunctional smart OHG composite with synergistic capabilities, offering novel prospects for advanced protection and smart firefighting applications.

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来源期刊

Carbon 工程技术-材料科学：综合

CiteScore

20.80

自引率

7.30%

发文量

审稿时长

23 days

期刊介绍： The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.