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Preparation method of high-strength cold-resistant modified glass wool fiber material

A glass wool fiber and modification technology, which is applied in the field of thermal insulation materials, can solve the problems of glass wool thermal insulation effect, tensile strength decline, and load-bearing deterioration, etc., to achieve large specific surface area, enhanced mechanical properties, high stiffness and strength. Effect

Pending Publication Date: 2020-09-08
韦杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention: Aiming at the problem that the thermal insulation effect and tensile strength of the glass wool on the market will be greatly reduced when the glass wool is in a wet state, resulting in poor bearing capacity, a high-strength cold-resistant modified Preparation method of permanent glass wool fiber material

Method used

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  • Preparation method of high-strength cold-resistant modified glass wool fiber material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In parts by weight, weigh 45 parts of silicon dioxide, 10 parts of sodium oxide, 3 parts of quicklime, 1 part of magnesium oxide, 3 parts of aluminum oxide, 0.5 part of potassium oxide, 3 parts of boron oxide and 0.01 part of iron oxide in In the mixer, stir and mix and ball mill through a 200-mesh sieve, collect the ball-milled mixture and place it in a crucible, place the crucible in a resistance furnace, heat it up to 1280 °C at a rate of 5 °C / min, keep it melted and collect the molten solution, after 200 The orifice drain plate flows out, and the hole diameter of the drain plate is controlled to be 25mm. The fiber is collected once and straightened with a rubber roller with a line speed of 3m / min. The straightened fiber is collected and melted for the second time. Heat preservation and traction melting treatment at ℃, collect the secondary fibers and collect them with a cotton collector, control the negative pressure wind frequency to 40Hz, and obtain the matrix glas...

Embodiment 2

[0031] In parts by weight, weigh 47 parts of silicon dioxide, 13 parts of sodium oxide, 4 parts of quicklime, 1.5 parts of magnesium oxide, 4 parts of aluminum oxide, 0.7 part of potassium oxide, 4 parts of boron oxide and 0.03 part of iron oxide in In the mixer, stir and mix and ball mill through a 200-mesh sieve, collect the ball-milled mixture and place it in a crucible, place the crucible in a resistance furnace, heat up to 1340 °C at a rate of 5 °C / min, keep warm and melt, and collect the melt. After 200 The orifice drain plate flows out, the hole diameter of the drain plate is controlled to be 25mm, the fiber is collected once and straightened with a rubber roller with a line speed of 4m / min, the straightened fiber is collected and melted for the second time, the pulling speed of the rubber roller is controlled to be 275m / s, at 1450 Heat preservation and traction melting treatment at ℃, collect the secondary fibers and collect them with a cotton collector, control the neg...

Embodiment 3

[0033] In parts by weight, weigh 50 parts of silicon dioxide, 15 parts of sodium oxide, 5 parts of quicklime, 2 parts of magnesium oxide, 5 parts of aluminum oxide, 1.0 part of potassium oxide, 5 parts of boron oxide and 0.05 part of iron oxide in In the blender, stir and mix and ball mill through a 200-mesh sieve, collect the ball-milled mixture and place it in a crucible, place the crucible in a resistance furnace, heat up to 1400 °C at a rate of 5 °C / min, keep warm and melt, and collect the melt. After 200 The orifice drain plate flows out, and the hole diameter of the drain plate is controlled to be 25mm. The fiber is collected once and straightened with a rubber roller with a line speed of 5m / min. The straightened fiber is collected and melted for the second time. Heat preservation and traction melting treatment at ℃, collect the secondary fibers and collect them with a cotton collector, control the negative pressure wind frequency to 45Hz, and obtain the matrix glass wool...

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Abstract

The invention relates to a preparation method of a high-strength cold-resistant modified glass wool fiber material, and belongs to the technical field of thermal insulation materials. According to thetechnical scheme, silica sol is adopted as a coating binder material, a composite material prepared from long glass fibers generally has high rigidity and strength compared with a composite materialprepared from short glass fibers, and under the action of a binder, the fibers are fused with one another, and friction exists between the fibers, so that the fiber stress of the glass wool felt stretches across the whole cotton felt through the bonding effect of the binder and the friction force between the fibers so as to bear a larger tensile load; and after high-temperature treatment, the binder part cannot be decomposed, carbonized and volatilized, so that the structure of the whole glass wool felt is changed, and the mechanical property is effectively improved.

Description

technical field [0001] The invention relates to a preparation method of a high-strength cold-resistant modified glass wool fiber material, which belongs to the technical field of thermal insulation materials. Background technique [0002] Glass wool belongs to a category of glass fibers and is a man-made inorganic fiber. Glass wool is a material made of molten glass fibrosis to form a cotton-like material. Its chemical composition belongs to glass and is an inorganic fiber. It has good molding, low bulk density, low thermal conductivity, thermal insulation, good sound absorption performance, and corrosion resistance. , The advantages of stable chemical properties. [0003] The traditional raw materials for the preparation of glass wool are ore materials such as quartz sand, limestone, feldspar, and calcite, but these quartz sand, limestone, feldspar, and calcite are relatively refractory or non-fluxing components, and these ore materials in nature Both contain more impurit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/022C03B37/025C01B33/157C01B33/158C03C13/00C03C25/42C03C25/47
CPCC01B33/157C01B33/1585C03B37/022C03B37/025C03C13/00C03C25/42C03C25/47
Inventor 韦杰
Owner 韦杰
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