Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of glass fiber felt with high thermal conductivity

A glass fiber wool, glass fiber technology, applied in gaseous chemical plating, metal material coating process, coating and other directions, can solve problems such as shedding and insufficient bonding force, and achieve high production efficiency, stable quality, and less pollution. Effect

Active Publication Date: 2017-01-11
SUZHOU HONGJIU AVIATION THERMAL MATERIALS TECH CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can produce graphene composite materials, but the bonding force between graphene and carbon microspheres is not enough, and it will fall off under extreme conditions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A preparation method of a high thermal conductivity glass fiber felt, comprising the following steps:

[0021] (1) preparation thickness is the glass fiber cotton mat of 5mm, puts into the vacuum pyrolysis furnace;

[0022] (2) tetraethyl orthosilicate steam is passed into the pyrolysis furnace;

[0023] (3) Methane vapor is passed into the pyrolysis furnace;

[0024] (4) The plasma-assisted chemical vapor deposition method is adopted, the deposition conditions are as follows: the deposition temperature is 200°C, argon is used as the dilution gas and carrier gas, and the deposition time is 3 minutes;

[0025] (5) Lower the temperature at a rate of 10° C. per second, take out the fiber after cooling down to room temperature, and obtain a composite material of graphene layer and glass fiber with a thickness of 0.01 nm.

[0026] The vapor flow of tetraethyl orthosilicate is 1% of the vapor flow of methane.

Embodiment 2

[0028] A preparation method of a high thermal conductivity glass fiber felt, comprising the following steps:

[0029] (1) preparation thickness is the glass fiber cotton mat of 10mm, puts into the vacuum pyrolysis furnace;

[0030] (2) tetraethyl orthosilicate steam is passed into the pyrolysis furnace;

[0031] (3) Methane vapor is passed into the pyrolysis furnace;

[0032] (4) The plasma-assisted chemical vapor deposition method is adopted, the deposition conditions are as follows: the deposition temperature is 450°C, argon is used as the dilution gas and carrier gas, and the deposition time is 10 minutes;

[0033] (5) Lower the temperature at a rate of 15° C. per second, take out the fiber after cooling down to room temperature, and obtain a composite material of graphene layer and glass fiber with a thickness of 10 nm.

[0034] The vapor flow rate of tetraethyl orthosilicate is 3% of the vapor flow rate of methane.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of glass fiber cotton felt with high thermal conductivity. The preparation method of the glass fiber cotton felt with high thermal conductivity is characterized by comprising the following steps: firstly, preparing glass fiber cotton felt with the thickness of 5-10mm, and placing the glass fiber cotton felt into a vacuum pyrolysis furnace; secondly, introducing tetraethoxysilane steam into the pyrolysis furnace; thirdly, introducing methane steam into the pyrolysis furnace; fourthly, carrying out plasma-assisted chemical vapour deposition for 3-10 minutes at the temperature of 200-450 DEG C while argon is taken as diluent gas and carrier gas; fifthly, cooling to room temperature at speed of 10-15 DEG C / s, and taking out fibers, wherein flow of the tetraethoxysilane steam is 1-3% that of the methane steam. The preparation method of the glass fiber cotton felt with the high thermal conductivity has the advantages that a chemical vapour deposition method is adopted, an obtained film is compact and stable in quality; as the methane steam and the tetraethoxysilane steam are introduced together, C and Si at the periphery of graphene are bonded together, and high bonding strength between graphene layers is realized; besides, less pollution is produced, operation is simple, preparation time is short, and production efficiency is high.

Description

technical field [0001] The invention relates to a method for preparing a glass fiber felt, in particular to a method for preparing a glass fiber felt with high thermal conductivity. Background technique [0002] Carbon fiber is a new type of high-strength, high-modulus fiber material with a carbon content of more than 95%. It is formed by stacking organic fibers such as flake graphite microcrystals along the axial direction of the fiber. The resulting microcrystalline graphite material. Carbon fiber has many excellent properties, such as good fatigue resistance, small thermal expansion coefficient, and good electrical and thermal conductivity. Except for thermal insulation materials, it is generally not used alone. It is mostly added to resins, metals, ceramics, concrete and other materials as reinforcing materials. It is widely used in many fields such as aerospace, national defense and military industry, and civil use. The thermal conductivity of carbon fiber with high t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C23C16/26
Inventor 陈照峰沙李丽
Owner SUZHOU HONGJIU AVIATION THERMAL MATERIALS TECH CO LTD