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A kind of alkali-resistant glass fiber composition

A technology of alkali-resistant glass fiber and glass fiber, applied in the field of glass fiber composition, can solve the problems of rapid decrease in fiber strength, difficulty in glass melting and clarification, and high production cost

Active Publication Date: 2017-01-11
JUSHI GRP CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, ER13 alkali-resistant glass fiber also has some problems, such as high content of TiO 2 and ZrO 2 Mainly introduced by rutile and zircon, it is still very difficult to melt and clarify the glass; a large amount of potassium nitrate and rutile are used in the raw materials, and the production cost is still high; Alkaline erosion, with the extension of time, its fiber strength will decrease faster

Method used

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  • A kind of alkali-resistant glass fiber composition
  • A kind of alkali-resistant glass fiber composition
  • A kind of alkali-resistant glass fiber composition

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Embodiment Construction

[0052] The technical solution of the present invention is specifically described below through examples, but the protection scope of the present invention is not restricted by any of the following examples.

[0053] In the present invention, glass samples are melted by means of a high-temperature electric furnace in a laboratory, and the raw materials used mainly include quartz sand, zircon sand, soda ash, lithium carbonate, limestone, fluorite, and composite clarifiers. Prepare ingredients according to the design bill of materials, mix them with a mixer, and then put the evenly mixed ingredients into a platinum-rhodium alloy crucible and melt them in a high-temperature electric furnace to form a qualified glass sample, and test its forming temperature and liquid phase line temperature.

[0054] The melted glass sample is crushed and put into a 200-hole platinum-rhodium alloy drawing crucible, heated at 100°C higher than the glass forming temperature for 2 hours, and then the ...

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Abstract

The invention discloses an alkali-resistant glass fiber composition which is prepared from the following components in percentage by weight: 59.0-63.0% of SiO2, 14.5-16.5% of ZrO2, 4.0-5.5% of CaO, 14.9-17.0% of R2O=Li2O+Na2O+K2O, 0-1.0% of Fe2O3 and 0-0.5% of TiO2, wherein the weight percentage of K2O is 0.1-1.4%, the weight percentage of Li2O is 0.1-1.0%, and the ratio C1=(Li2O+Na2O+K2O) / ZrO2 is 0.89-1.05. The composition disclosed by the invention not only can ensure that the fiber boasts alkaline resistance similar to that of saimufeier fibers, but also can be used for further improving the viscosity and crystallization property of glass. Meanwhile, the production cost is lowered and the composition is more suitable for production in a tank furnace on a large scale.

Description

[0001] (1) Technical field [0002] The invention relates to a glass fiber composition, in particular to a glass fiber composition with excellent alkali resistance and suitable for large-scale tank kiln production. [0003] (2) Background technology [0004] In the 1960s and 1970s, the British Building Research Institute cooperated with Pilkington Company to successfully develop an alkali-resistant glass fiber and realize small-scale industrial production. Its commercial name is Cem-fil fiber. . The glass composition of Samphir fiber is mainly Na 2 O-ZrO 2 -SiO 2 The ternary system is the main one. In order to improve the alkali resistance of the fiber, ZrO 2 The content is very high (generally more than 16.7%), but there is no effective combination of fluxing and clarifying substances, resulting in a series of problems such as high melting temperature of the glass, difficulty in clarifying and homogenizing, high drawing temperature, harsh production process, and high cost....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C13/02
CPCC03C13/002
Inventor 章林邢文忠曹国荣顾桂江
Owner JUSHI GRP CO