Grp raw material - glass fiber

GRP raw material - glass fiber

2022-08-03 15:25 · Yisheng resin

Glass fiber is a very important material in glass fiber reinforced plastic composites, accounting for about 40-50% of glass fiber reinforced plastic. It is an inorganic non-metallic material with excellent performance. Original English name: glass fiber or fiberglass. The ingredients are silicon dioxide, alumina, calcium oxide, boron oxide, magnesium oxide, sodium oxide, etc. It is made of glass ball or waste glass by high-temperature melting, drawing, winding, weaving and other processes. Finally, various kinds of products are formed. The diameter of glass fiber monofilament ranges from several microns to more than 20 meters, which is equivalent to 1/20-1/5 of a hair filament. Each bundle of fiber filaments is composed of hundreds or even thousands of monofilaments, which are widely used in various fields of the national economy as reinforcing materials in composite materials, electrical insulation materials, thermal insulation materials, circuit boards, etc.

Glass fiber products have different forms. The commonly used ones are glass fiber cloth, also known as glass fiber checkered cloth or glass fiber cloth, chopped felt, surface felt, knitted felt, axial cloth, unidirectional cloth, glass fiber yarn, etc.

Glass fiber products can be divided into alkali-free and medium-alkali products according to the high alkali content. Most of them are alkali-free glass cloth abroad. Glass cloth is mainly used to produce various electrical insulating laminates, printed circuit boards, various vehicle bodies, storage tanks, boats, molds, etc. The medium-alkali glass cloth is mainly used in the production of plastic-coated packaging cloth, as well as in corrosion-resistant occasions. Fabric properties are determined by fiber properties, warp and weft density, yarn structure and texture. The density of warp and weft is determined by yarn structure and texture. The close combination of warp and weft and yarn structure determines the physical properties of the fabric, such as weight, thickness and breaking strength. There are five basic textures: plain, twill, satin, rib and mat.