Preparation method of high-strength high-temperature-resistant glass cotton

A glass wool, high temperature resistant technology, used in glass manufacturing equipment, manufacturing tools, etc., can solve the problems of low mechanical strength, cellulose breakage, and high brittleness of glass wool, and achieve improved comprehensive performance, good elasticity, and good mechanical strength. Effect

Inactive Publication Date: 2018-11-06
苏州华龙化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the brittleness of glass wool is relatively high, and its mechanical strength is generally low. It is easy to break the cellulose after long-term use.

Method used

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  • Preparation method of high-strength high-temperature-resistant glass cotton

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of high-strength and high-temperature-resistant glass wool, comprising the following steps:

[0027] (1) Put 70 parts of waste glass, 30 parts of calcite and 20 parts of nano-alumina into water to wash and remove impurities, collect the precipitated particles after removing impurities, dry the precipitated particles in an oven, and mix the precipitated raw materials with 15 parts of borax and 9 parts of carbon nanotubes are mixed, and placed in a pulverizer for pulverization, passing through a 60-mesh sieve, and collecting the sieved particles;

[0028] (2) Mix the sieved particles prepared in step (1) with 9 parts of calcium oxide, 7 parts of magnesium silicate, and 5.5 parts of titanium dioxide, and then put them into a ball mill for ball milling to collect the ball mill; put the ball mill into In a melting furnace, melt at 850°C to obtain molten glass;

[0029] (3) Put the molten glass into a glass wool centrifuge for centrifugal blowing to prod...

Embodiment 2

[0037] A preparation method of high-strength and high-temperature-resistant glass wool, comprising the following steps:

[0038] (1) Put 60 parts of waste glass, 20 parts of calcite and 15 parts of nano-alumina into water to wash and remove impurities, collect the precipitated particles after removing impurities, dry the precipitated particles in an oven, and mix the precipitated raw materials with 12 parts of borax and 6 parts of carbon nanotubes are mixed, and placed in a pulverizer for pulverization, passing through a 30-mesh sieve, and collecting the sieved particles;

[0039] (2) Mix the sieved particles prepared in step (1) with 7 parts of calcium oxide, 5 parts of magnesium silicate, and 4 parts of titanium dioxide, and then put them into a ball mill for ball milling to collect the ball mill; put the ball mill into Melting in a melting furnace at 800°C to obtain molten glass;

[0040] (3) Put the molten glass into a glass wool centrifuge for centrifugal blowing to prod...

Embodiment 3

[0048] A preparation method of high-strength and high-temperature-resistant glass wool, comprising the following steps:

[0049] (1) Put 65 parts of waste glass, 25 parts of calcite and 18 parts of nano-alumina into water to wash and remove impurities, collect the precipitated particles after removing impurities, dry the precipitated particles in an oven, and mix the precipitated raw materials with 14 parts of borax and 8 parts of carbon nanotubes are mixed, and placed in a pulverizer for pulverization, passing through a 40-mesh sieve, and collecting the sieved particles;

[0050] (2) Mix the sieved particles prepared in step (1) with 8 parts of calcium oxide, 6 parts of magnesium silicate, and 5 parts of titanium dioxide, and then put them into a ball mill for ball milling to collect the ball mill; put the ball mill into Melting in a melting furnace at 820°C to obtain molten glass;

[0051] (3) Put the molten glass into a glass wool centrifuge for centrifugal blowing to prod...

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Abstract

The invention provides a preparation method of high-strength high-temperature-resistant glass cotton. The preparation method comprises the following steps: firstly preparing glass liquid by using waste glass, calcite, nano aluminum oxide, borax, carbon nano tubes, calcium oxide, magnesium silicate and titanium dioxide, placing the glass liquid in a glass cotton centrifugal machine for centrifuginginjection, preparing glass fibers, uniformly spraying a glass cotton binder to the surfaces of the glass fibers, and conveying the glass fibers to a curing furnace for curing after cotton collectionby a cotton collecting machine, to obtain the glass cotton. The prepared glass cotton has good mechanical strength. It can be known that the elasticity of the glass cotton is good according to a numerical value of a breaking elongation, so a thermal deformation problem caused by temperature shock is prevented; a heat conductivity coefficient of the glass cotton is 0.007 w / mk, demonstrating that the glass cotton has good heat conductivity, and the glass cotton is prevented from being so hot that the use effect and the service life are affected. So the prepared glass cotton has extensive application prospect.

Description

technical field [0001] The invention belongs to the technical field of glass wool, and in particular relates to a preparation method of high-strength and high-temperature-resistant glass wool. Background technique [0002] Glass wool belongs to inorganic thermal insulation materials and is an important member in the field of thermal insulation materials. It not only has excellent properties such as non-combustibility, small thermal conductivity, and good chemical stability, but also can be compounded or deep-processed with other materials to expand the application field of products. Because glass wool products have been more and more widely used in construction, metallurgy, petroleum, chemical, national defense and military industries and high-tech industries, they have played an important role in the development of the national economy. [0003] However, glass wool is brittle and generally low in mechanical strength, and cellulose is prone to breakage after long-term use. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/00C03B37/06
CPCC03B37/06C03C13/00
Inventor 吴建平
Owner 苏州华龙化工有限公司
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