Electronic fiberglass cloth coarse cloth

Electronic grade glass fiber cloth used in the composition of the glass are aluminum carbon silicate, commonly known as alkali free glass, internationally referred to as E glass, namely electric insulating glass.

Non-duty glass refers to aluminum code silicate glass with alkali metal oxide content less than 1%. This GLASS WAS ORIGINALLY DEVELOPED FOR ELECTRICAL APPLICATIONS, BUT ITS CURRENT APPLICATION HAS GONE FAR BEYOND THAT AND HAS BECOME ALMOST A UNIVERSAL GLASS FORMULA, ACCOUNTING FOR 80-90% OF THE WORLD’S TOTAL CONTINUOUS GLASS FIBER PRODUCTION.

At present, the glass composition of E glass fiber produced in all countries in the world is roughly the same, and its basic components are all So, A0, Cao ternary system. The weight percentage only fluctuates in a small range. The fluctuation range is roughly as follows: Si02 53%-56%; A20, 14% to 18%. Ca0 20% 24%; Na20 + K0 0.5%~1.0%; B0, 5% to 10

Electronic fiberglass cloth muslin

The electrical insulation performance of electronic glass fiber cloth is very high. At room temperature, its volume resistivity and surface resistivity are greater than 10″0.cm. At the frequency of 10°H, the dielectric loss Angle of 4 is 1.1×10-. The normal dielectric application e is 6.6, and the alkali free glass fiber has a high strength, and its new ecological unit strength is up to 3.5GPa. The elastic modulus is 730CPa. It is worth mentioning that the metal oxide in the glass composition is Na, 0

The content of +K20 is the main factor affecting the electrical insulation performance of glass fiber. In order to improve the electrical insulation properties of glass fiber, the content of alkali metal oxides in glass components must be strictly controlled.

Technical tests proved that the content of Nap0 +K, 0 in glass fiber decreased from 1.6% to 0.5%. Then the volume resistance of glass fiber can be increased by 10 quantities

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