High-modulus glass fiber with excellent alkali resistance and preparation method ofhigh-modulus glass fiber

Abstract

The invention provides a high-modulus glass fiber with excellent alkali resistance and a preparation method of the high-modulus glass fiber. The glass fiber comprises the following raw materials of: 55-60% of SiO2, 15-20% of Al2O3, 12-18% of YSZ, 0.5-2% of Y2O3+Nd2O3+CeO2, 5-8% of CaO +MgO, less than or equal to 2% of Li2O+Na2O+K2O, less than or equal to 1% of Fe3O4 and less than or equal to 1% ofTiO2. By replacing traditional zirconium oxide with YSZ and combining a small amount of rare earth oxide and other components, the high-modulus glass fiber with excellent alkali resistance can be prepared at a low spinning temperature.

Description

technical field [0001] The invention relates to the field of glass fiber manufacturing, in particular to a high-modulus glass fiber with excellent alkali resistance and a manufacturing method thereof. Background technique [0002] High-modulus glass fiber is a composite inorganic fiber material with excellent performance, which is widely used in various fields such as aerospace, automobile manufacturing, and electronic equipment. [0003] SiO 2 -Al 2 o 3 -ZrO 2 Fiberglass is the most commonly used high modulus glass fiber. Among such high modulus glass fibers, SiO 2 As the main body of the skeleton structure, with Al 2 o 3 Al in 3+ The tetrahedral and octahedral coordination structures of SiO 2 The skeleton structure is connected, which increases the high-temperature viscosity and chemical stability of the glass. ZrO 2 It is an essential ingredient to improve the alkali resistance of glass fiber and ensure high modulus, hardness, viscosity and other properties. ...

AI Technical Summary

Problems solved by technology

However, the solution is to reduce or even eliminate the use of ZrO 2 To achieve, the alkali resistance of the prepared glass fiber is insufficient

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