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The characteristics of alkali-free glass fiber

The characteristics of alkali-free glass fiber


Alkali-free fiberglass is commonly known as E glass

The R2O content of alkali-free glass fiber is less than 0.8%, which is a kind of aluminoborosilicate composition. Its chemical stability, electrical insulation performance and strength are all very good. It is mainly used as electrical insulation material, reinforcement material of FRP and tire cord. For composite cable holders.

The R2O content of medium-alkali fiberglass is 11.9%-12.4%. It is a sodium calcium silicate component. Because of its high alkali content, it cannot be used as an electrical insulating material, but its chemical stability and strength are still good. It is generally used as latex cloth, grid cloth base material, acid filter cloth, window screen base material, etc. It can also be used as glass fiber reinforced plastic reinforcement material that does not have strict requirements on electrical properties and strength.

High-alkali fiberglass itself has the defects of low strength, poor water resistance and alkali resistance, which cannot be overcome. Using it as an enhanced product will only harm the interests of users in the end.

FiberGlass is an inorganic non-metallic material with excellent properties. The ingredients are silica, alumina, calcium oxide, boron oxide, magnesium oxide, sodium oxide, etc. It uses glass balls or waste glass as raw materials through high-temperature melting, wire drawing, winding, weaving and other processes. Finally, various products are formed. The diameter of glass fiber monofilament ranges from a few microns to more than 20 meters, which is equivalent to 1/20-1/5 of a hair. Composed of thousands of monofilaments, it is usually used as a reinforcing material in composite materials, electrical insulation materials and heat insulation materials, circuit substrates, etc., and is widely used in various fields.

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