Classification of glass fiber materials

According to shape and length, glass fiber can be divided into continuous fiber, fixed length fiber and glass wool. According to the composition of glass, it can be divided into alkali free, chemical resistant, high alkali, medium alkali, high strength, high elastic modulus and alkali resistant glass fiber. The main raw materials for producing glass fiber are: quartz sand, alumina, pyrophyllite, limestone, dolomite, boric acid, soda ash, mirabilite, fluorite, etc. Production methods can be roughly divided into two categories: one is to directly make fibers from molten glass; One is to make the molten glass into a glass ball or rod with a diameter of 20mm, and then heat and remelt it in various ways to make it into a glass ball or rod with a diameter of 3 - 80μm.