Composition for preparing high-performance glass fiber by tank furnace production

Abstract

The invention discloses a composition for preparing high-performance glass fiber by tank furnace production. The composition contains the following components in percentage by weight: 57.5 to 62.5 percent of SiO2, 14.5 to 17.5 percent of Al2O3, 13.5 to 17.5 percent of CaO, 16.5 to 8.5 percent of MgO, 0.05 to 0.6 percent of Li2O, 0.1 to 2 percent of B2O3, 0.1 to 2 percent of TiO2, 0.1 to 2 percent of Na2O, 0.1 to 1 percent of K2O, and 0.1 to 1 percent of Fe2O3, wherein the ratio of (CaO+MgO) to the MgO is more than 3, and the content of at least one of Li2O, B2O3 and TiO2 is over 0.5 percent. The composition for preparing the high-performance glass fiber makes the melting, clarification and fiber forming performance of the glass close to boron-free E glass on the basis of maintaining high mechanical properties of the glass fiber; and the composition is easy for large-scale industrialized production of tank furnace method, and has the manufacturing cost close to that of the E glass.

Description

(1) Technical field [0001] The invention relates to a composition for preparing high-performance glass fiber, especially a composition suitable for tank kiln production, which can be used to strengthen organic and / or inorganic materials, and can be used for textile high-performance glass fiber composition, which belongs to special Field of glass fiber composition. (2) Background technology [0002] Glass fiber is an inorganic fiber material, and it can be used to strengthen organic polymer materials to produce composite materials with excellent performance, and can also be used to strengthen inorganic materials (such as cement) to obtain applications in road construction and other fields. As a type of special glass, the production method of glass fiber is relatively difficult, so the usage of glass fiber has been severely restricted by the production cost for a long time. After 2000, a breakthrough was made in the production of glass fiber by the large-scale pool kiln metho...

AI Technical Summary

Problems solved by technology

[0006] Due to the limitation of production methods, that is, because the large-scale production of tank kilns cannot be realized, the manufacturing cost and selling price of high-performance glass fibers are very expensive at this stage, so the output is severely restricted, and its use is limited to aviation, aerospace, and The fields of national defense and military industry cannot meet the large demand for high-performance glass fibers in new industries such as high-power wind power blades, high-pressure pipelines, and pressure vessels.

Images