Glass wool belongs to a category of fiberglass, which includes glass wool.
Glass fibers can be divided into continuous fibers, fixed-length fibers, and glass wool according to shape and length; according to glass composition, they can be divided into alkali-free, chemical-resistant, high-alkali, medium-alkali, high-strength, high elastic modulus, and alkali-resistant (alkali-resistant) glass fibers.
The main raw materials for the production of glass fiber are: quartz sand, alumina and pyrophyllite, limestone, dolomite, boric acid, soda ash, Glauber's salt, fluorite, etc. The production methods are roughly divided into two categories: one is to directly make fibers from molten glass; the other is to first make molten glass into glass balls or rods with a diameter of 20mm, and then heat and remelt them in various ways to make very fine fibers with a diameter of 3 to 80μm. Infinitely long fibers drawn through mechanical drawing methods through platinum alloy plates are called continuous glass fibers, commonly known as long fibers. Discontinuous fibers made by rollers or airflow are called fixed-length glass fibers, commonly known as short fibers.
Glass fiber is divided into different grades according to its composition, properties, and uses. According to standard grade regulations, E-grade glass fiber is more commonly used and widely used in electrical insulation materials, while S-grade glass fiber is a special fiber.
