The purpose of Fluorophlogopite Mica Insulation Gasket!
Fluorophlogopite Insulation Sheets For Aerospace Equipment：
Fluorine crystal mica（also known as artificial mica and synthetic mica crystal), which belongs to silicate artificial mica crystal, is a mica crystal melted in platinum crucible under strict process conditions and material ratio at 1500 ℃. Its chemical formula is KMg3 (AlSi3O10) F2 and does not contain (OH) F2. Its texture is very pure and its electrical performance is very good. The bulk resistivity is 1015 ~ 1016 Ω cm (about 1000 times higher than that of natural mica), the electrical breakdown strength is 185 ~ 238 kV/mm, which is 10 times that of polytetrafluoroethylene, and it can work at 1100 ℃ for a long time. Its melting and crystallization temperature is 1375 ℃. The stability of cold and hot sudden change is also very good.
The insulation materials commonly used in ordinary industry are natural mica and polytetrafluoroethylene.
Natural mica is a kind of naturally formed underground ore, which belongs to silicate. Its ideal chemical formula is KAl2 (AlSi3O10) (OH) 2 and KMg3 (AlSi3O10) (OH) 2, which contains (OH) hydroxyl. Because of the existence of hydroxyl (water molecule), its performance is much lower than that of Fluorphlogopite Mica.Natural mica contains many impurities and its electrical performance is unstable, but its electrical performance is even worse at high temperature and high frequency. When the temperature is above 500 ℃, it gradually loses its mica characteristics due to dehydration. Polytetrafluoroethylene, because of its poor temperature resistance, can only be used in low temperature environment (generally not more than 300 ℃), and its production is prone to metal impurities and poor corona.
Thus it can be seen that the electrical insulation properties of natural mica and polytetrafluoroethylene can not be compared with Fluorphlogopite Mica.
Fluorphlogopite Mica is an ideal electrical insulating material in the field of high-end technology. It has been nearly ten years since 2005 that it has been used in aerospace equipment as insulation gasket by Shijiazhuang 13th Research Institute of China Light and Power Group.
Over the past ten years, thirteen institutes have applied Fluorphlogopite Mica to make insulating films on all space equipment, including Shenzhou 8, 9, 10 spaceships and environmental monitoring satellites (Jianbing 9). Wholeheartedly welcome friends from all walks of life to visit, I hope you understand fluorine crystal mica, the use of fluorine crystal mica.
Our company can provide free samples for researchers in the high-tech field.