成果归属机构：

工程技术学院

作者：

He, Juanxia ; Yang, Lihong ; Ruan, Xingzhe ; Liu, Zechun ; Liao, Kezhang ; Xie, Xuecai ; Shu, Xueming ; Zhan, Yongzhong ; Pang, Xingzhi ; Yang, Wenchao ; Duan, Qingshan

单位：

Guangxi Univ, Sch Resources Environm & Mat, Nanning 530004, Peoples R China;State Key Lab Featured Met Mat & Life Cycle Safety, Nanning 530004, Peoples R China;China Univ Geosci Beijing, Sch Engn & Technol, Beijing 100083, Peoples R China;Tsinghua Univ, Sch Safety Sci, Beijing 100084, Peoples R China;Guangxi Univ, Sch Light Ind & Food Engn, Nanning 530004, Peoples R China

摘要：

It is significant to research on novel materials and devices for alarm and rescue because of catastrophic fire and rainstorm accidents. However, significant challenges remain in terms of dual extreme environments. Here, a carboxylated multi-walled carbon nanotube (C-MWCNT)-driven triple-enhanced triboelectric material (poly (vinylidene fluoride)/C-MWCNT, P/CM5) was constructed by electrospinning, which had the characteristics of flame retardancy, high triboelectricity, and remarkable mechanical property. It possessed ultrafast selfextinguishing (<1 s) due to the inhibition of fluorine-containing radicals induced by PVDF combustion decomposition and the physical barrier effect of the condensed-phase char layer from C-MWCNT. Surprisingly, the tensile strength of P/CM5 was nearly 369.09 % of that of the pure PVDF film. Meanwhile, it also had remarkable hydrophobicity (WCA = 123(degrees)), which ensured proper functioning when wet with water. The opencircuit voltage of the P/CM5-based triboelectric nanogenerator (P/CM5-TENG) at room temperature was nearly 961.45 % compared with that of the casting PVDF-TENG because the beta-phase induced by C-MWCNT in PVDF was raised to 80.08 %. Notably, it simultaneously excelled in triboelectricity at 200( degrees)C, after burning for 30 s, and entire immersion in water. The P/CM5-based self-powered sensor could monitor human motion status or alarm under dual harsh conditions by a wireless Bluetooth system, which is expected to realize smart rescues in disastrous fire and rainy environments.

基金：

Guangxi Key Research and Development Program [Guike AB23026055]; National Natural Science Foundation of China [72204139, 22578081]; China Postdoctoral Science Foundation [2023T160371]; Natural Science Foundation of Guangxi Province [2025GXNSFAA069597]

语种：

英文

DOI：

10.1016/j.compositesb.2025.113091

来源：

COMPOSITES PART B-ENGINEERING,2026():.

出版日期：

2026-01-15

提交日期：

2025-11-15

引用参考：

He, Juanxia; Yang, Lihong; Ruan, Xingzhe; Liu, Zechun; Liao, Kezhang; Xie, Xuecai; Shu, Xueming; Zhan, Yongzhong; Pang, Xingzhi; Yang, Wenchao; Duan, Qingshan. Triple-enhanced triboelectric materials driven by carboxylated multi-walled carbon nanotubes: Flame retardancy, triboelectricity, and mechanical property[J]. COMPOSITES PART B-ENGINEERING,2026():.