Glass fiber capable of being used as advanced reinforced substrate of composite material

Abstract

The invention discloses a glass fiber capable of being used as an advanced reinforced substrate of a composite material, comprising the following components in percentage by weight: 57 to 65 percent of SiO2, 14 to 20 percent of Al2O3, 8 to 13 percent of CaO, 7 to 12 percent of MgO, less than 23 percent of CaO and MgO, 0.05 to 2 percent of Na2O and K2O, and 0.05 to 1 percent of Fe2O3. While the mold temperature, the liquidus temperature and the refining temperature of the glass fiber are maintained to be relatively low, through optimization and combination of the components, the mechanical performance of the glass fiber is greatly improved compared with conventional E glass fiber, and the increase range of monofilament strength can be increased up to 26 percent, and the total cost of the glass fiber is possibly close to or lower than the cost of the conventional E glass fiber, thus being easy for implementing large-scale industrial production.

Description

(1) Technical field [0001] The invention relates to a glass fiber, in particular to a high-performance glass fiber that can be used as a reinforced base material for advanced composite materials. (2) Background technology [0002] Glass fiber belongs to inorganic fiber material, and it can be used to reinforce resin to make composite material with excellent performance. High-performance glass fiber, as the reinforcing substrate of advanced composite materials, was originally mainly used in the fields of national defense and military industries such as aviation, aerospace, and weapons. With the advancement of science and technology and economic development, high-performance glass fiber has been widely used in civil and industrial fields such as motors, wind blades, pressure vessels, offshore oil pipelines, sports equipment, and automobiles. [0003] Since Owens-Corning of the United States developed S glass fiber, various countries have competed to develop and produce high-p...

AI Technical Summary

Problems solved by technology

This kind of glass fiber has much higher strength and modulus than traditional E glass fiber, and the melting and drawing conditions are also good, but its Li 2 The large amount of O introduced not only reduces the chemical stability, but also greatly increases the cost of raw materials, which is not conducive to large-scale industrial production

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