先进的阻燃三聚氰胺泡沫具有超灵敏性和长时间火警警告功能，采用集成氧化石墨烯/箭石纳米涂层的智能设备

IF 6.5 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Communications Pub Date : 2024-09-19 DOI:10.1016/j.coco.2024.102086

Yunyirui Liu, Changhua Li, Rongkai Wu, Jixin Gong, Bihe Yuan

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引用次数: 0

摘要

提高建筑外墙保温材料的阻燃性和火灾预警能力对于确保消防安全、保护人民生命财产安全至关重要。在此，我们通过逐层自组装法（LBL）将氧化石墨烯（GO）和阿塔波尔格石（ATP）集成到三聚氰胺泡沫（MF）上，开发出了一种具有阻燃和预警性能的环保型纳米涂层。由于 GO 的热诱导还原作用，GO-ATP-MF 复合材料对火焰的响应速度很快（1 秒）。此外，ATP 对气相和凝结相的协同阻燃效果也有助于实现出色的阻燃性，使火灾警报持续时间达到 1330 秒。这种复合材料的警报持续时间超过了迄今报道的大多数基于 GO 的火灾警报纳米涂层。此外，蓝牙无线传输系统的加入促进了智能设备之间的实时火灾信息共享，从而优化了火灾信号的传输效率。因此，这项研究推动了具有高灵敏度和长时间火灾预警能力的 GO 基阻燃纳米涂层和设备的发展，为提高 MF 作为隔热材料的防火安全性提供了一种创新思路。

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Advanced flame-retardant melamine foam with ultra-sensitivity and prolonged fire warning, featuring smart device-integrated graphene oxide/attapulgite nano-coating

Enhancing flame retardancy and fire-warning capabilities of thermal insulation materials used in building external walls is crucial for ensuring fire safety as well as guarding people's lives and assets. Herein, we have developed an environmentally friendly nano-coating that possesses flame-retardant and early-warning properties by integrating graphene oxide (GO) and attapulgite (ATP) onto melamine foam (MF) through a layer-by-layer self-assembly method (LBL). The GO-ATP-MF composite demonstrates a rapid response to flame (<1 s) due to GO's thermally induced reduction. Additionally, ATP's synergistic flame-retardant effects on both gas and condensed phases contribute to outstanding flame retardancy, enabling an enduring fire alarm duration (>1330 s). The warning duration time of this composite surpasses the majority of GO-based fire-warning nano-coatings reported to date. Moreover, incorporating a Bluetooth wireless transmission system facilitates real-time fire information sharing among smart devices, thereby optimizing fire signal transmission efficiency. Thus, this study advances GO-based flame-retardant nano-coatings and devices with high sensitivity and prolonged fire-warning capabilities, providing an innovative idea to enhance the fire safety of MF as a thermal insulation material.

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来源期刊

Composites Communications Materials Science-Ceramics and Composites

CiteScore

12.10

自引率

10.00%

发文量

340

审稿时长

36 days

期刊介绍： Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.