A novel fire-resistant piezoresistive sponge for monitoring infant sleep behaviors and realizing edge-hazard warnings

IF 2.6 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2026-04-01 Epub Date: 2026-01-10 DOI:10.1016/j.matlet.2026.140093

Xiangwen Gu, Haosen Xu, Ziqiang Xu, Xin Luo, Jinchen Liu, Yubao Cui, Tongqiang Shen

引用次数: 0

Abstract

Herein, a novel fire-resistant piezoresistive sponge (denoted as Ni/APP@Sponge) is developed through a method involving the coating of nickel (Ni) and ammonium polyphosphate (APP) particles. Owing to the interaction between Ni and APP particles, the char residue of Ni/APP@Sponge reaches 39.65 wt% at 800 °C under an air atmosphere. Furthermore, benefiting from the microstructures of the conductive fabric and the high conductivity of Ni particles, the sensitivity of Ni/APP@Sponge is as high as 14.28 kPa⁻¹ (5 kPa–11 kPa). The Ni/APP@Sponge can be arrayed in a layout to form a fire-resistant mattress, and the combination of software and hardware technology not only monitor sleep behaviors but also realize edge-hazard warnings. Therefore, this research offers a novel approach for advancing infant bedding toward higher safety and intelligent development.

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一种用于监测婴儿睡眠行为并实现边缘危险预警的新型耐火压阻海绵

本文通过镍（Ni）和聚磷酸铵（APP）颗粒包覆的方法，研制了一种新型耐火压阻海绵（Ni /APP@Sponge）。由于Ni和APP粒子之间的相互作用，在800℃的空气气氛下，Ni/APP@Sponge的焦炭残渣达到39.65 wt%。此外，得益于导电织物的微观结构和Ni粒子的高导电性，Ni/APP@Sponge的灵敏度高达14.28 kPa−1 （5 kPa - 11 kPa）。Ni/APP@Sponge可以排列成一个布局，形成一个防火床垫，结合软硬件技术，不仅可以监控睡眠行为，还可以实现边缘危险预警。因此，本研究为推动婴儿床上用品向更高的安全性和智能化发展提供了一条新的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive