It has the advantages of good insulation and corrosion resistance. The diameter of monofilament is from several microns to twenty micron. It uses glass ball or waste glass as raw material and is produced by high temperature melting. Glass fibre is usually used as reinforced composite materials, but its drawback is crisp. It features with poor abrasion resistance, good heat resistance and is used as electrical insulating materials and heat/thermal insulation materials. Its diameter is equal to that of a hair. Each bundle fiber raw silk is formed by hundreds or even thousands of monofilament with high mechanical strength. Glass fiber is a kind of inorganic nonmetal material with excellent performance.
It is a kind of boron silicate glass with corrosion protection. It also can used as chemical filter. As a reinforcing material of glass fiber, it has the following characteristics. It is alleged that it also has the potential as glass fiber reinforced materials with 86000MPa elastic modulus. It is upgraded alkali free glass fiber for the requirements of environmental protection. It belongs to a sodium calcium silicate glass containing boron or no-boron and high alkali glass fiber (over 13% sodium oxidation, the absorption of impact energy is very good, but it is very important). After processing, glass fiber can be divided into non-alkali glass fiber ( 0% ~ 2% sodium oxidation). Quartz sand belongs to sodium calcium silicate glass with good heat resistance. (1) with high tensile strength, it can be fused into a small glass beads under high temperature and also can used for the production of reinforced materials. (3) the elastic limit is large and the tensile strength is high. (7) good machinability, it is mainly used for enhancing the properity of cement. It also can be used for enhancing asphalt roofing. Its main component are silica and it is a typical sodium silicate glass so as to reduce environmental pollution. It also be widely used for the production of glass fiber. (11) It is not easy to burn with high strength. Its disadvantage is that it is easy to be eroded by inorganic acid. Its strength is greatly increased with high flexibility. Glass fiber is mainly used for electrical insulating materials, manufacture of reinforced plastic or reinforced rubber, electrical insulating materials and heat or thermal insulation materials and so on.
