It is difficult to find an apartment in which there would be Wallpapers. This is a fairly affordable way to decorate the walls according to your taste, but the Wallpaper has a very dangerous drawback: they are very well lit. However, Chinese researchers have recently developed a refractory inorganic Wallpaper. Moreover, these Wallpapers are made with the use of graphene, and they can even act as a fire alarm.
The composition of these Wallpaper includes threads hydroxyapatite and special sensors from graphene oxide. They warn you about any fire. The response time of such sensors is only 2 seconds, and retain the health they are more than 5 minutes, and it is very good result.
For the development of responsible experts from the Shanghai Institute of ceramics under the guidance of Chih-Chao of Xinga. They have developed a technology of graphene sensors in the Wallpaper and created on its basis, non-flammable inorganic paper. The Foundation of Wallpaper is the structure of hydroxyapatite nanowires are longer than 10 micrometers and a thickness of about 10 nanometers. They give the structure mechanical strength while maintaining low weight and resistance to flame.
Schematic structure of the device inorganic Wallpaper with graphene sensors
Graphene oxide is also used in the Wallpaper of a new type not just. It when the temperature come off of oxygen-containing functional group that starts a chain of chemical reactions leads to the circuit, and then triggers the sensor (light or sound). Moreover, these sensors remain stable at temperatures up to 250 degrees Celsius. But that’s not all: in order to increase the stability of the Wallpaper out in the open, the scientists added in their composition of molecules polydopamine.
Change Wallpaper when exposed to fire
High-tech Wallpaper with a printed pattern
As already mentioned, the sensors retain their performance longer than 5 minutes and, therefore, light and sound sensors will work the same. For comparison, a standard means of warning stop working after 30 seconds.