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Coating method for reinforcing high silica glass fiber fabric

A high-silica glass fiber and glass fiber technology, applied in fiber treatment, fabric surface trimming, heating/cooling fabric, etc., can solve the problems of many equipment, complex process flow, unfavorable industrial production, etc., to simplify process steps, improve Mechanical properties and the effect of improving high temperature antioxidant capacity

Inactive Publication Date: 2012-06-20
南京彤天科技实业股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the process route adopted by Shampa Mondal et al. is borate synthesis first, then recrystallization purification, and finally glass fiber coating and high temperature pyrolysis. The process is complicated and requires more equipment, which is not conducive to industrial production.

Method used

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  • Coating method for reinforcing high silica glass fiber fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1) Weigh 61.83 grams of boric acid, 119.35 grams of triethanolamine and 422.75 grams of ethanol, and prepare a solution;

[0029] 2) Immerse the high-silica glass fiber fabric in an ethanol solution for surface coating for 1 minute, and dry it at 80°C;

[0030] 3) heat-treating the high-silica glass fiber-coated fabric for 1 hour under a nitrogen flow at a temperature of 160°C;

[0031] 4) heat-treating the high-silica glass fiber-coated fabric for 1 hour at a temperature of 180° C. under nitrogen flow;

[0032] 5) In a nitrogen atmosphere and at a temperature of 350°C, heat-treat the high-silica glass fiber coated fabric for 1 hour, and obtain a reinforced high-silica glass fiber coated fabric product after cooling;

[0033] 6) test the tensile strength of the high silica glass fiber coated fabric product, the test results are shown in Table 1;

[0034] 7) Heat-treat the high-silica glass fiber coated fabric for 1 hour in an air atmosphere at a temperature of 800° C., ...

Embodiment 2

[0036] 1) Weigh 61.83 grams of boric acid, 149.19 grams of triethanolamine and 492.38 grams of ethanol, and prepare a solution;

[0037] 2) Immerse the high-silica glass fiber fabric in an ethanol solution for surface coating for 1 minute, and dry it at 70°C;

[0038] 3) heat-treating the high-silica glass fiber-coated fabric for 1 hour under a nitrogen flow at a temperature of 160°C;

[0039] 4) heat-treating the high-silica glass fiber-coated fabric for 1 hour at a temperature of 180° C. under nitrogen flow;

[0040] 5) In a nitrogen atmosphere and at a temperature of 350°C, heat-treat the high-silica glass fiber coated fabric for 1 hour, and obtain a reinforced high-silica glass fiber coated fabric product after cooling;

[0041] 6) test the tensile strength of the high silica glass fiber coated fabric product, the test results are shown in Table 1;

[0042] 7) Heat-treat the high-silica glass fiber coated fabric for 1 hour in an air atmosphere at a temperature of 800° C....

Embodiment 3

[0044] 1) Weigh 61.83 grams of boric acid, 223.79 grams of triethanolamine and 1142.48 grams of ethanol, and prepare a solution;

[0045] 2) Immerse the high-silica glass fiber fabric in an ethanol solution for surface coating for 2 minutes, and dry it at 70°C;

[0046] 3) heat-treating the high-silica glass fiber-coated fabric for 1 hour under a nitrogen flow at a temperature of 160°C;

[0047] 4) heat-treating the high-silica glass fiber-coated fabric for 1 hour at a temperature of 180° C. under nitrogen flow;

[0048] 5) In a nitrogen atmosphere and at a temperature of 350°C, heat-treat the high-silica glass fiber coated fabric for 1 hour, and obtain a reinforced high-silica glass fiber coated fabric product after cooling;

[0049] 6) test the tensile strength of the high silica glass fiber coated fabric product, the test results are shown in Table 1;

[0050] 7) Heat-treat the high-silica glass fiber coated fabric for 1 hour in an air atmosphere at a temperature of 800° ...

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Abstract

The invention discloses a coating method for reinforcing high silica glass fiber fabric, which employs low-temperature firing process of ceramic materials using an organic precursor conversion method; a temperature-resistant coating containing boron nitride is coated on the surface of the high silica glass fiber fabric, thereby achieving the purposes of reinforcing the mechanical property and the temperature resistance of the high silica glass fiber fabric. Pyrolytic sintering is carried out in nitrogen atmosphere, thereby overcoming the defect of easy formation of boron oxide in air atmosphere, and effectively enhancing the mechanical property of the high silica glass fiber coating fabric. The coating method disclosed by the invention comprises the steps of: dipping and coating the surface of the high silica glass fiber fabric by using ethanol solution of boric acid and triethanolamine; and then carrying out programmed heating treatment to the high silica glass fiber coating fabric at a temperature in a range from 140 DEG C to 450 DEG C; and forming the temperature-resistant coating containing boron nitride in situ on the surface of the high silica glass fiber fabric.

Description

technical field [0001] The present invention relates to a kind of coating method of high silica glass fiber fabric, more specifically relates to a kind of coating method of reinforcing high silica glass fiber fabric. Background technique [0002] High silica glass fiber is a kind of high temperature resistant inorganic fiber, which belongs to special glass fiber. Its SiO 2 The content is more than 96%. It is usually made of sodium borosilicate glass fiber through hot acid extraction (leaching) to remove impurities other than silicon, and then sintered. The fiber has good high temperature resistance, can be used at 900°C for a long time, and can withstand high temperature of 1200°C for a short time. Fiberglass material with insulating properties. In recent years, with the gradual prohibition of asbestos in the world, high-silica glass fibers have been rapidly developed and applied, and have been widely used in high-temperature insulating materials, fire protection material...

Claims

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Application Information

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IPC IPC(8): D06M11/80D06C7/00
Inventor 竺林黄健黎鹏王娟靳怀强吕海
Owner 南京彤天科技实业股份有限公司
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