Acid-resistant glass fiber composition, acid-resistant glass fiber and preparation method of acid-resistant glass fiber

A glass fiber and acid-resistant technology, applied in the field of acid-resistant glass fiber and its preparation, and acid-resistant glass fiber composition, can solve the problems of poor physical properties such as tensile strength, inability to be used as electrical insulating materials, and high alkali content. Achieve the effects of improving mechanical properties and corrosion resistance, reducing the difficulty of molding operations, and facilitating industrial production

Inactive Publication Date: 2021-01-05
ZHEJIANG HONGSHENG NEW MATERIAL TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Alkali-free glass fiber belongs to aluminoborosilicate glass fiber. It has good tensile strength and electrical insulation performance, but because of the glass composition contains a certain amount of boron and fluorine, the structural skeleton is loose and not complete, and its acid corrosion resistance is poor. Poor, the composite material prepared by it is easily corroded by acid in acidic environment and peeled off from the resin matrix, losing strength rapidly
Medium-alkali glass fiber belongs to sodium calcium silicate composition and has good chemical stability, but because of its high alkali content, it cannot be used as an electrical insulating material, and its physical properties such as tensile strength are relatively poor

Method used

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  • Acid-resistant glass fiber composition, acid-resistant glass fiber and preparation method of acid-resistant glass fiber
  • Acid-resistant glass fiber composition, acid-resistant glass fiber and preparation method of acid-resistant glass fiber
  • Acid-resistant glass fiber composition, acid-resistant glass fiber and preparation method of acid-resistant glass fiber

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preparation example Construction

[0042] The present invention also provides a method for preparing glass fibers, comprising: preparing raw materials according to the above-mentioned glass fiber composition; melting the raw materials to obtain molten glass; drawing the molten glass to obtain glass fibers.

[0043] Among them, the present invention has no special limitation on the sources of all raw materials, which can be commercially available.

[0044] Prepare raw materials according to the above-mentioned glass fiber composition; in the present invention, the above-mentioned glass fiber composition is preferably derived from pyrophyllite, quartz sand, calcite, potassium feldspar, sodium oxide, calcium oxide, zircon, boronite and soda ash, and is prepared raw material.

[0045] The raw materials are melted to obtain molten glass; in the present invention, the melting is preferably carried out in a kiln; the raw materials are preferably transported to the kiln by conveying equipment; the conveying equipment i...

Embodiment 1

[0051] A kind of acid-resistant glass fiber composition, its main component and its weight content are:

[0052] SiO 2 : 55.2%, Al 2 o 3 : 8.5%, Na 2 O: 12.8%, CaO: 14.8%, K 2 O: 5.5%, B 2 o 3 : 1.5%, ZrO: 0.32%, MgO: 0.70%, Fe 2 o 3 : 0.68%.

[0053] The preparation method of glass fiber is as follows:

[0054] According to the chemical composition of the formulas listed above, the proportioning requirements of various raw materials are obtained through detection and calculation. , Soda ash is used as the raw material, and after being accurately measured by the weighing system, it is evenly mixed by the mixing system to make batch materials. The batch materials are transported to the front warehouse of the kiln through a pneumatic conveying system, fed by an automatic feeder, and melted at 1510°C in a kiln fired with pure oxygen to obtain clarified and homogenized molten glass. The melted glass flows to the wire drawing channel and the wire drawing forming system t...

Embodiment 2

[0056] A kind of glass fiber composition, its main component and its weight content are:

[0057] SiO 2 : 64.5%, Al 2 o 3 : 5.5%, Na 2 O: 13.0%, CaO: 11.3%, K 2 O: 3.0%, B 2 o 3 : 1.3%, ZrO: 0.50%, MgO: 0.52%, Fe 2 o 3 : 0.38%.

[0058] The preparation method of glass fiber is as follows:

[0059] According to the chemical composition of the formulas listed above, the proportioning requirements of various raw materials are obtained through detection and calculation. , Soda ash is used as the raw material, and after being accurately measured by the weighing system, it is evenly mixed by the mixing system to make batch materials. The batch materials are transported to the front warehouse of the kiln through a pneumatic conveying system, fed by an automatic feeder, and smelted at 1450°C by a kiln with pure oxygen combustion and electric assistance to obtain clarified and homogenized molten glass. The melted glass flows to the wire drawing channel and the wire drawing f...

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Abstract

Compared with the prior art, the acid-resistant glass fiber composition provided by the invention has the advantages that the content ranges of four main components, namely SiO2, Al2O3, Na2O and CaO,are accurately regulated and controlled, so that the internal structure of the glass fiber is optimized, and the glass fiber is ensured to have good mechanical property, corrosion resistance and forming property, and the problem that the high-performance glass fiber is difficult to obtain under the condition of low production difficulty is solved. Meanwhile, a proper amount of K2O, MgO, ZrO, B2O3and Fe2O3 components are properly introduced, so that the forming operation of the glass fiber is further improved, the forming operation difficulty is reduced, and the mechanical property and the corrosion resistance, especially the acid resistance, of the glass fiber are improved; In addition, the obtained glass fiber does not contain boron, fluorine and harmful clarifying agents, so that the service life of the refractory material of the kiln is prolonged, energy conservation, environmental protection and emission reduction are realized, and the glass fiber is easy to realize industrial production.

Description

technical field [0001] The invention belongs to the technical field of special glass fibers, and in particular relates to an acid-resistant glass fiber composition, an acid-resistant glass fiber and a preparation method thereof. Background technique [0002] Glass fiber is an inorganic fiber material, which has excellent properties such as temperature resistance and corrosion resistance, high strength and low elongation, and low price. After a breakthrough in the production of glass fiber by the large-scale pool kiln method, the production cost of glass fiber has been significantly reduced. Therefore, the scope and amount of use of glass fiber have continued to expand, and are widely used in aerospace, automobiles, construction, electronics, electrical, and chemical industries. , metallurgy, environmental protection, national defense and other industries; the use of glass fiber reinforced organic polymer materials can produce composite materials with excellent performance; g...

Claims

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Application Information

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IPC IPC(8): C03C13/00C03C3/093C03B37/022
CPCC03C13/00C03C3/093C03B37/022
Inventor 宋朋泽李刚
Owner ZHEJIANG HONGSHENG NEW MATERIAL TECH GRP CO LTD
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