A high-performance glass fiber

A glass fiber, high-performance technology, applied in the field of glass fiber filaments, can solve the problem of low strength, achieve high mechanical strength, low molding temperature and liquidus temperature, and reduce the risk of devitrification

Active Publication Date: 2017-01-11
江西大华新材料股份有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The basis of the medium-alkali glass composition is SiO 2 -CaO-Na 2 O ternary system, its composition and weight percentage content are: SiO 2 68~82%; CaO 6~16%, Na 2 O: 12 to 18%, the products produced are generally used, but the performance of the products is mainly due to the low strength, generally between 0.3N / tex and 0.4N / tex

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0013] This specific embodiment adopts the following technical scheme: its composition is as follows: SiO 2 : 55%, Al 2 o 3 : 11.5%, CaO: 20%, MgO: 3.5%, RO=CaO+MgO: 23.5%, TiO 2 : 3.5%, K 2 O: 1.5%, ZnO: 2%, Fe 2 o 3 : 0.3%, Li 2 O: 1.5%.

[0014] The ratio range of (CaO+MgO) to MgO is: 5<(CaO+MgO) / MgO<15.

[0015] The operation steps of this embodiment are as follows:

[0016] 1. Each composition is obtained from appropriate raw materials (such as SiO in quartz yarn 2 , CaO in the limestone), various raw materials are mixed in appropriate proportions, so that each component reaches the final expected weight percentage;

[0017] 2. The mixed batch is melted and clarified in the tank kiln, and the formed glass liquid flows through the channel to the fiber forming leak plate at the bottom of the channel, and the glass liquid is pulled out through the leak nozzle on the leak plate to form glass fiber, glass The fiber is drawn and wound to the rotating head of the wire ...

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Abstract

The invention discloses a high-performance glass fiber and relates to the technical field of glass fiber yarns. The high-performance glass fiber consists of the following components in percentage by weight: 54.8-56.2% of SiO2, 10.5-12.5% of Al2O3, 19.8-21.3% of CaO, 3.2-4.5% of MgO, 23-25% of RO=(CaO+MgO), 2.9-4.1% of TiO2, 0.5-2.0% of K2O, 1-3% of ZnO, 0.1-0.5% of Fe2O3 and 1-2% of LiO2. Titanium and lithium are introduced, so that the structure of the glass fiber is changed for facilitating improvement on the mechanical strength, high temperature resistance and chemical stability of the glass. The high-performance glass fiber has a relatively low molding temperature and a relatively low liquid phase line temperature, can be used for reducing the glass devitrification risk and keeping relatively high mechanical strength, and is beneficial to good drawing of the glass fiber.

Description

[0001] Technical field: [0002] The invention relates to the technical field of glass fiber filaments, in particular to a high-performance glass fiber. [0003] Background technique: [0004] In the production process of glass fiber filaments at home and abroad, there are mainly two types of glass formulations: non-alkali and medium-alkali. C glass is medium-alkali glass, which is a commonly used glass component for the production of continuous glass fibers. The basis of the medium-alkali glass composition is SiO 2 -CaO-Na 2 O ternary system, its composition and weight percentage content are: SiO 2 68~82%; CaO 6~16%, Na 2 O: 12 to 18%, the products produced are generally used, but the performance of the products is mainly that the strength is not high, generally between 0.3N / tex and 0.4N / tex. [0005] Invention content: [0006] The object of the present invention is to provide a kind of high-performance glass fiber, it has introduced titanium and lithium, causes the str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C13/02
CPCC03B37/022C03C13/00C03C3/087
Inventor 孙华华王敏郑绍斌
Owner 江西大华新材料股份有限公司
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