Fire Alarm Wallpaper Based on Fire-Resistant Hydroxyapatite Nanowire Inorganic Paper and Graphene Oxide Thermosensitive Sensor.

Published on Mar 13, 2018in ACS Nano14.588
· DOI :10.1021/ACSNANO.8B00047
Fei-Fei Chen14
Estimated H-index: 14
(CAS: Chinese Academy of Sciences),
Ying-Jie Zhu81
Estimated H-index: 81
(CAS: Chinese Academy of Sciences)
+ 3 AuthorsZhi-Chao Xiong13
Estimated H-index: 13
(CAS: Chinese Academy of Sciences)
Wallpaper with multiple functions, such as fire resistance and an automatic alarm in fire disasters, will be attractive for the interior decoration of houses. Herein, we report a smart fire alarm wallpaper prepared using fire-resistant inorganic paper based on ultralong hydroxyapatite nanowires (HNs) and graphene oxide (GO) thermosensitive sensors. At room temperature, the GO thermosensitive sensor is in a state of electrical insulation; however, it becomes electrically conductive at high temperatures. In a fire disaster, high temperature will rapidly remove the oxygen-containing groups of GO, leading to the transformation process of GO from an electrically insulated state into an electrically conductive one. In this way, the alarm lamp and alarm buzzer connected with the GO thermosensitive sensor will send out the alerts to people immediately for taking emergency actions. After the surface modification with polydopamine of GO (PGO), the sensitivity and flame retardancy of the GO thermosensitive sensor ar...
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