Do you understand the composition and properties of glass fiber?
The main components are silicon dioxide, aluminum oxide, calcium oxide, boron oxide, magnesium oxide, and sodium oxide. Based on the alkali content, glass can be classified as follows:
① Alkali-free glass fiber (0%~2% sodium oxide, aluminoborosilicate glass)
② Medium-alkali glass fiber (8%~12% sodium oxide, boron-containing or boron-free sodium-calcium silicate glass) and high-alkali glass fiber (sodium oxide content above 13%, sodium-calcium silicate glass).
Characteristics: Glass fiber has higher temperature resistance than organic fibers, is non-flammable, corrosion-resistant, has good heat and sound insulation, high tensile strength, and good electrical insulation. However, it is brittle and has poor wear resistance. Used to manufacture reinforced plastics or reinforced rubber, glass fiber as a reinforcing material has the following characteristics:
① High tensile strength and low elongation (3%).
② High elastic modulus and good rigidity.
③ Large elongation within the elastic limit and high tensile strength, thus absorbing a large amount of impact energy.
④ It is an inorganic fiber, non-flammable, and has excellent chemical resistance.
⑤ It has low water absorption.
⑥ It has excellent dimensional stability and heat resistance.
⑦ It has good processability and can be made into various forms such as strands, bundles, felts, and woven fabrics.
⑧ It is transparent and allows light to pass through.
⑨ It has good adhesion to resins.
⑩ It is inexpensive.
⑪ It is not easily flammable and can melt into glassy beads at high temperatures.