Special thermal insulation glass fiber composite material for aviation and preparation method thereof

A composite material and glass fiber technology, which is applied in the field of special thermal insulation glass fiber composite materials for aviation and its preparation, can solve the problems of inability to meet the use requirements, poor installation and processing performance, low strength of thermal insulation materials, etc., and achieves small pores and reduces radiation. , good thermal insulation effect

Active Publication Date: 2014-03-19
CHONGQING ZAISHENG TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aerospace field has high requirements for thermal insulation materials. Conventional glass fiber cotton thermal insulation materials that are bonded with glue and overmolded have low strength, poor installation and processing performance, poor thermal insulation effect, and heavy quality, which cannot meet the requirements of use.

Method used

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  • Special thermal insulation glass fiber composite material for aviation and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The method of the present invention for preparing aviation-specific thermal insulation glass fiber composite material comprises the following steps:

[0035] 1) Raw material preparation: select 4 parts of zinc oxide, 22 parts of borax, 29 parts of white sand, 29 parts of potassium feldspar powder, 6 parts of soda ash, 4.6 parts of calcite, 0.8 parts of potassium carbonate, 4.6 parts of barium carbonate, and mix well;

[0036] 2) Melting: Melt the raw materials in step 1) into molten glass in a nickel-chromium crucible with a leak;

[0037] 3) Primary fiberization: After the glass liquid in step 2) flows out from the leakage hole, the primary fiber is obtained by manual wire drawing and arranging;

[0038] 4) Secondary fiberization: the primary fiber in step 3) is drawn by high-temperature and high-speed airflow to produce glass fiber cotton with a diameter of 1.25 μm;

[0039] 5) Forming: Send the glass fiber cotton obtained in step 4) into the airflow forming machine,...

Embodiment 2

[0048] The method of the present invention for preparing aviation-specific thermal insulation glass fiber composite material comprises the following steps:

[0049] 1) Preparation of raw materials: select 3 parts of zinc oxide, 22 parts of borax, 30 parts of white sand, 29.5 parts of potassium feldspar powder, 5 parts of soda ash, 4.6 parts of calcite, 0.9 parts of potassium carbonate, and 5 parts of barium carbonate, and mix them evenly;

[0050] 2) Melting: Melt the raw materials in step 1) into molten glass in a nickel-chromium crucible with a leak;

[0051] 3) Primary fiberization: After the glass liquid in step 2) flows out from the leakage hole, the primary fiber is obtained by manual drawing and wire arrangement;

[0052] 4) Secondary fiberization: the primary fiber in step 3) is pulled by high temperature and high speed airflow to produce glass fiber cotton with a diameter of 0.75 μm;

[0053] 5) Forming: Send the glass fiber cotton obtained in step 4) into the airflo...

Embodiment 3

[0062] The method of the present invention for preparing aviation-specific thermal insulation glass fiber composite material comprises the following steps:

[0063] 1) Raw material preparation: select 5 parts of zinc oxide, 22 parts of borax, 29 parts of white sand, 30 parts of potassium feldspar powder, 5 parts of soda ash, 3.6 parts of calcite, 0.9 parts of potassium carbonate, 4.5 parts of barium carbonate, and mix well;

[0064] 2) Melting: Melt the raw materials in step 1) into molten glass in a nickel-chromium crucible with a leak;

[0065] 3) Primary fiberization: After the glass liquid in step 2) flows out from the leakage hole, the primary fiber is obtained by manual wire drawing and arranging;

[0066] 4) Secondary fiberization: use high-temperature, high-speed airflow to pull the primary fiber in step 3) to produce glass fiber cotton with a diameter of 1.0 μm;

[0067] 5) Forming: Send the glass fiber cotton obtained in step 4) into the airflow forming machine, and...

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Abstract

The invention discloses a special thermal insulation glass fiber composite material for aviation. The special thermal insulation glass fiber composite material comprises polyester non-woven fabric, glass cellucotton and bonding glue, wherein the thickness of the non-woven fabric is 0.05-0.1mm; the diameter of the glass cellucotton is 0.75-1.25 microns; the bonding glue is phenolic resin, and accounts for 0.8-1.2% of the total weight of the composite material; the glass cellucotton is compounded on the surface of the non-woven fabric through the bonding glue. The method for preparing the composite material, disclosed by the invention, comprises the steps of firstly, taking a proper amount of zinc oxide, sodium borate, white sand, feldspar powder, sodium carbonate, calcite, potassium carbonate and barium carbonate, and mixing and melting; pulling by high-temperature and high-speed airflow after forming the fiber for the first time, so as to obtain the glass cellucotton; dispersing the glass cellucotton on the surface of the non-woven fabric, and spraying and gluing; finally drying to obtain the product. The thermal insulation glass fiber composite material disclosed by the invention is low in heat conductivity coefficient, excellent in high temperature resistance, low in density and high in strength, thereby meeting the operating requirements of the aviation industry.

Description

technical field [0001] The invention belongs to the field of silicon-containing inorganic fibers, and relates to a glass fiber composite material and a preparation method thereof, in particular to an aviation-specific thermal insulation glass fiber composite material and a preparation method thereof. Background technique [0002] Glass fiber wool belongs to a category of glass fiber and is a kind of man-made inorganic fiber. Natural ores such as quartz sand, limestone, dolomite are used as main raw materials, and some chemical raw materials such as soda ash and borax are used to melt into glass. In the molten state, it is blown into flocculent fine fibers by external force, and the fibers are three-dimensionally intersected and intertwined with each other, presenting many small gaps, which can be regarded as pores. Therefore, glass wool can be regarded as a porous material with good heat insulation and sound absorption properties. The reason why glass wool can absorb sound...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/12C04B14/42C04B16/06
Inventor 郭茂秦大江
Owner CHONGQING ZAISHENG TECH CORP
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