Glass fiber board is a very good insulation material. The diameter of the glass fiber board monofilament is from a few microns to a dozen or more meters which is equivalent to 1 / 20-1 / 5 of a hair strand. There are hundreds or even thousands of monofilaments that usually used as reinforcement materials in composite materials, electrical insulation materials and thermal insulation materials, circuit boards, etc which are widely used in various fields of the national economy. Glass fiber board is a kind of good insulation material diameter is equivalent to 1 / 20-1 / 5 of a hair wire as a reinforcing material in the composite material. The ingredients are silica, alumina, calcium oxide, boron oxide, magnesium oxide, sodium oxide and the like. Glass fiber board uses glass balls or waste glass as raw materials through high-temperature melting, drawing, winding, weaving and other processes. Finally, various products are formed. Characteristics of glass fiber board has higher temperature resistance than organic fiber, non-combustible, anti-corrosion, good thermal insulation and sound insulation (especially glass wool), high tensile strength and good electrical insulation (such as alkali-free glass fiber). But it is brittle and has poor wear resistance. Glass fiber is mainly used as electrical insulation materials, industrial filter materials, anti-corrosion, moisture-proof, thermal insulation, sound insulation, shock absorption materials. Glass fiber board can also be used as a reinforcing material to manufacture reinforced plastics or reinforced rubber, reinforced gypsum and reinforced cement. Covering glass fiber with organic materials can improve its flexibility and is used to make packaging cloth, window screens, wall coverings, covering cloths, protective clothing and insulation and sound insulation materials. The general concept of glass is that it is a hard and fragile object and it is not suitable for structural materials. However, if glass fiber board is drawn into silk, its strength is greatly increased and it has flexibility. Therefore, it can finally become an excellent structural material after being shaped with a resin. As the diameter of glass fiber decreases, its strength increases. As a reinforcing material, glass fiber board has the following characteristics. These characteristics make the use of glass fiber board far wider than other types of fiber and its development speed is far ahead. Its characteristics are listed as follows:
(1) High tensile strength and small elongation (3%).
(2) High elasticity coefficient and good rigidity.
(3) The elongation within the elastic limit is large and the tensile strength is high, so the impact energy is large.
(4) It is inorganic fiber, non-combustible and has good chemical resistance.
(5) Low water absorption.
(6) Scale stability and heat resistance are good.
(7) Good processability that can be made into products of different forms such as strands, bundles, felts, and woven fabrics.
(8) Transparent and light-permeable.
(9) Development of surface treatment agent with good adhesion to resin is completed.
(10) The price is cheap.