Glass fiber is an inorganic non-metallic material with excellent performance. There are many varieties of glass fiber. It has many advantages, such as good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, but its disadvantages are brittleness, resistance to Poor abrasiveness. It is made of pyrophyllite, quartz sand, limestone, dolomite, borosite and borosite as raw materials through high temperature melting, wire drawing, winding, weaving and other processes. The diameter of its monofilament is several Micron to twenty microns, equivalent to 1/20-1/5 of a hair, each bundle of fiber strands is composed of hundreds or even thousands of monofilaments. Glass fibers are usually used in many fields, such as reinforcing materials in composite materials, electrical insulating materials and thermal insulation materials, circuit substrates and other fields of the national economy.
