Glass fiber is an inorganic nonmetallic material with excellent performance. The original English name is: glassfiber. These components are silica, alumina, calcium oxide, boron oxide, magnesium oxide, sodium oxide, etc. It is made of glass balls or waste glass through high temperature melting, drawing, winding and weaving. Finally, various products are formed. The diameter of glass fiber monofilament varies from a few microns to more than 20 meters microns, which is equivalent to 1/20- 1/5 of a hair filament. Each bundle of fiber precursor is composed of hundreds or even thousands of monofilaments, which are usually used as reinforcing materials, electrical insulation materials, thermal insulation materials, circuit boards and so on in composite materials, and are widely used in various fields of national economy.
Characteristics of glass fiber:
Generally speaking, glass is a hard and fragile object, which is not suitable for structural materials. However, if it is drawn into silk, its strength will be greatly increased, and it will be flexible. After being shaped with resin, it will eventually become an excellent structural material. As the diameter of glass fiber decreases, its strength increases. As a reinforcing material, glass fiber has the following characteristics, which makes the use of glass fiber far wider than other kinds of fibers, and its development speed is far ahead. These features are as follows:
(1) has high tensile strength and low elongation (3%).
(2) High elastic coefficient and good rigidity.
(3) It has large elongation and high tensile strength within the elastic limit, so it absorbs large impact energy.
(4) It is an inorganic fiber with incombustibility and good chemical resistance.
(5) Low water absorption.
(6) Good dimensional stability and heat resistance.
(7) Good processability, and can be made into different forms of products such as strips, bundles, felts and weaves.
(8) transparent and light-transmitting.
(9) The development of surface treatment agent with good adhesion to resin was completed.
(10) is cheap.