2. It is used to produce glass fiber for electrical insulation, and also for mass production of glass fiber for glass fiber reinforced plastic.

3. Used to produce glass fiber surface felt, etc. , also used to strengthen asphalt roofing materials.

4. Used in military industry, aerospace, bulletproof armor and sports equipment.

5. A new environmental protection reinforcing material for high performance reinforced concrete.

6. Used for the development of underground pipelines and storage tanks.

Extended data:

Glass fiber can be divided into continuous fiber, fixed length fiber and glass wool according to its shape and length. Glass fiber can be divided into alkali-free, chemical-resistant, high alkali, medium alkali, high strength, high elastic modulus and alkali-resistant (alkali-resistant) glass fiber according to glass composition.

The main raw materials for producing glass fiber are quartz sand, alumina and pyrophyllite, limestone, dolomite, boric acid, soda ash, mirabilite and fluorite. There are two production methods: one is to produce fibers directly from molten glass; The other is to make glass balls or glass rods with a diameter of 20 mm, and then make very fine fibers. Fine fibers with a diameter of 3-80 microns after reheating and remelting in various ways.

Infinite fiber mechanically stretched by platinum alloy plate is called continuous glass fiber, usually called long fiber. Discontinuous fibers formed by rollers or airflow are called fixed-length glass fibers, usually called short fibers.

Glass fiber is divided into different grades according to its composition, properties and uses. According to the standard grade, E-grade glass fiber is the most commonly used and widely used electrical insulation material. S grade is a special kind of fiber.

Baidu encyclopedia-glass fiber