Laser-induced Janus graphene/poly(p-phenylene benzobisoxazole)fabrics with intrinsic flame retardancy as flexible sensors and breathable electrodes for fire-fighting field  

作　　者：Yu Luo Yaping Miao Huimin Wang Kai Dong Lin Hou Yanyan Xu Weichun Chen Yao Zhang Yingying Zhang Wei Fan 

机构地区：[1]School of Textile Science and Engineering,Key Laboratory of Functional Textile Material and Product of Ministry of Education,Xi’an Polytechnic University,Xi’an 710048,China [2]Department of Chemistry,Tsinghua University,Beijing 100084,China [3]Beijing Institute of Nanoenergy and Nanosystems,Chinese Academy of Sciences,Beijing 100083,China [4]Shaanxi Textile Research Institute Co.,Ltd.,Xi’an 710038,China

出　　处：《Nano Research》2023年第5期7600-7608,共9页纳米研究（英文版）

基　　金：the National Natural Science Foundation of China(Nos.52073224 and 52202111);the Textile Vision Basic Research Program of China(No.J202110);the Key Research and Development Program of Xianyang Science and Technology Bureau,China(No.2021ZDYF-GY-0035);the Key Research and Development Program of Shaanxi Province,China(No.2022SF-470);the Key Research and Development Program of Shaanxi Province,China(No.2022GY-377);the Natural Science Foundation of Shaanxi Province(No.2021JQ-685);the Scientific Research Project of Shaanxi Provincial Education Department,China(No.22JC035).

摘　　要：Conventional firefighting clothing and fire masks can protect firemen’s safety to a certain extent,whereas cannot perceive environmental hazards and monitor their physical status in real time.Herein,we fabricated two kinds of Janus graphene/poly(pphenylene benzobisoxazole)(PBO)fabrics by laser direct writing approach and evaluated their performance as intelligent firefighting clothes and fire masks.The results showed that the Janus graphene/PBO fabrics were virtually non-combustible and achieved the highest thermal protection time of 18.91 s ever reported in flame,which is due to the intrinsic flame-retardant nature of PBO fibers.The graphene/PBO woven fabrics-based sensor showed good repeatability and stability in human motion monitoring and NO_(2)gas detection.Furthermore,the piezoelectric fire mask was assembled with graphene/PBO nonwoven fabric as electrode layer and polyvinylidene fluoride(PVDF)electrostatic direct writing film as piezoelectric layer.The filtration efficiency of the fire mask reaches 95%for PM_(2.5)and 100%for PM_(3.0),indicating its effective filtration capability for smoke particles in fires.The respiratory resistance of the piezoelectric fire mask(46.8 Pa)was lower than that of commercial masks(49 Pa),showing that it has good wearing comfort.Besides,the piezoelectric fire mask can be sensitive to the speed and intensity of human breathing,which is essential for indirectly reflecting the health of the human body.Consequently,this work provides a facile approach to fabricate next-generation intrinsic flame-retardant smart textiles for smart firefighting.

关 键 词：poly(p-phenylene benzobisoxazole)(PBO)fibers laser-induced graphene flame retardancy textile electronics intelligent fire protection 

分 类 号：TQ127.11[化学工程—无机化工] RP212