High-performance glass fiber

Abstract

The invention discloses a high-performance glass fiber. The high-performance glass fiber is prepared from the raw materials in parts by weight: 40-60 parts of silicon dioxide, 10-15 parts of aluminumoxide, 10-15 parts of silicon carbide, 5-7 parts of barium oxide, 4-6 parts of boron oxide, 10-15 parts of magnesium oxide, 5-7 parts of calcium oxide, 0.1-0.3 part of lithium oxide, 0.1-0.3 part of titanium dioxide, 2-4 parts of potassium oxide, 0.3-0.5 part of ferric oxide, 0.1-0.5 part of cerium oxide, 0.2-0.4 part of tungsten oxide, 0.5-1 part of sodium sulfate, 0.3-0.7 part of zirconium oxide, 0.1-0.3 part of sodium oxide, 1.5-2.5 parts of zinc oxide, and 2.5-3.5 parts of calcium fluoride. The high-performance glass fiber produced has a flat appearance and a uniform color, can be well applied to various post-processing manufacturing processes, and has good mechanical properties and wear resistance, high mechanical strength and good chemical stability and thermal stability; acid resistance is improved; and the thermal expansion coefficient is reduced. The high-performance glass fiber has excellent high temperature resistance, long-term application to 1100 DEG C or less, good ablation performance, better high temperature resistance, chemical resistance and elastic modulus, and is widely applied to the fields such as the manufacture of precision instrument thermal protection parts, ablative materials , thermal insulation materials.

Description

technical field [0001] The invention relates to a glass fiber, in particular to a high-performance glass fiber. Background technique [0002] Glass fiber is an inorganic non-metallic material with excellent performance. There are many kinds. The advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, but the disadvantages are brittleness and poor wear resistance. It is made of glass balls or waste glass through high-temperature melting, wire drawing, winding, weaving and other processes. The diameter of its single filament is several microns to more than 20 microns, which is equivalent to a hair. 1 / 20-1 / 5 of that, each bundle of fiber precursors consists of hundreds or even thousands of monofilaments. The glass fiber is often used as reinforcing material of composite material, electrical insulation and heat insulation materials, substrate and other national economy fields. [0003] With the continuous development of t...

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Problems solved by technology

[0003] With the continuous development of the economy, the demand for glass fiber in industrial smelting, welding and other industries has increased sharply. At present, some alkali-free glass fibers are used, which have a very short life and poor heat insulation. damage, thus endangering personal safety, its acid and alkali resistance, rigidity, anti-aging and high temperature resistance need to be improved