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Glass fiber cloth with high thermal conductivity and its manufacturing method

A glass fiber cloth, high thermal conductivity technology, used in fiber processing, textiles and papermaking, etc., can solve problems such as danger, affect the performance of components or equipment, and achieve the effect of increasing thermal conductivity

Active Publication Date: 2018-01-16
江苏富仕德科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the electronics industry, the performance of copper clad laminates is not only required to have electrical and mechanical properties such as high dielectric constant, low dielectric loss tangent, low thermal expansion coefficient, etc. High thermal conductivity, because electronic components are getting smaller and smaller. If the heat cannot penetrate and dissipate well under working conditions, it will seriously affect the performance of itself and the components or equipment it is composed of. In severe cases, it may even cause Danger

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
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: a kind of manufacture method of high thermal conductivity glass fiber cloth, comprises the following steps:

[0019] (1) 20% PTFE emulsion, 59.8% SiO 2 Powder, 10% Al 2 o 3 Powder, 5% boron nitride powder, 5% water, 0.1% silane coupling agent and 0.1% polyoxypropylene oxide glyceryl ether defoamer are mixed and stirred evenly to obtain glue. Be 45 ℃, stirring time is 90min; Unit is mass percent; The solid content of described PTFE emulsion is about 60%;

[0020] (2) Soak the glass fiber cloth in the glue solution on the vertical gluing machine. The speed of the glass fiber cloth is about 60cm / min; then squeeze the excess glue solution through the extrusion roller, and finally dry it in the oven. The temperature is 230°C, and the drying time is 25 minutes; after drying, the glass fiber cloth with high thermal conductivity is cut and curled to obtain the high thermal conductivity glass fiber cloth, and the thickness of the finished glass fiber cloth with ...

Embodiment 2

[0021] Embodiment 2: a kind of manufacture method of high thermal conductivity glass fiber cloth, comprises the following steps:

[0022] (1) 35% PTFE emulsion, 40% SiO 2 Powder, 10% Al 2 o 3 Powder, 5% boron nitride powder, 8% water, 1% silane coupling agent and 1% polyoxypropylene oxide glyceryl ether defoamer are mixed and stirred evenly to obtain glue, and the stirring temperature Be 50 ℃, stirring time is 70min; Unit is mass percentage; The solid content of described PTFE emulsion is about 60%;

[0023] (2) Soak the glass fiber cloth in the glue solution on the vertical gluing machine. The speed of the glass fiber cloth is about 60cm / min; then squeeze the excess glue solution through the extrusion roller, and finally dry it in the oven. The temperature is 240°C, and the drying time is 20 minutes; after drying, the glass fiber cloth with high thermal conductivity is cut and curled to obtain the high thermal conductivity glass fiber cloth, and the thickness of the finish...

Embodiment 3

[0024] Embodiment 3: a kind of manufacture method of high thermal conductivity glass fiber cloth, comprises the following steps:

[0025] (1) 30% PTFE emulsion, 58% SiO 2 Powder, 10% Al 2 o 3 Powder, 5% boron nitride powder, 5% water, 1% silane coupling agent and 1% polyoxypropylene oxide glyceryl ether defoamer are mixed and stirred evenly to obtain glue, and the stirring temperature Be 60 ℃, stirring time is 60min; Unit is mass percentage; The solid content of described PTFE emulsion is about 60%;

[0026] (2) Soak the glass fiber cloth in the glue solution on the vertical gluing machine. The speed of the glass fiber cloth is about 60cm / min; then squeeze the excess glue solution through the extrusion roller, and finally dry it in the oven. The temperature is 250°C, and the drying time is 15 minutes; after drying, the high thermal conductivity glass fiber cloth is cut and curled to obtain the high thermal conductivity glass fiber cloth, and the thickness of the finished hi...

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Abstract

The invention relates to high-thermal-conductivity-coefficient glass fiber cloth and a manufacturing method thereof. The manufacturing method comprises the following steps: (1) mixing 20%-50% of PTFE (Polytetrafluoroethylene) emulsion, 40%-60% of SiO2 powder, 10%-30% of Al2O3 powder, 5%-20% of boron nitride powder, 5%-10% of water, 0.1%-1% of a coupling agent and 0.1%-1% of a de-foaming agent, uniformly stirring to obtain glue liquid, wherein the unit is weight percent; (2) infiltrating the glass fiber cloth with the glue liquid, extruding by an extruding roller; and drying by a drying box to obtain the high-thermal-conductivity-coefficient glass fiber cloth. In the step (1), the stirring temperature is 45-60 DEG C and the stirring time is 60-90min. In the step (2), the speed of infiltrating the glass fiber cloth with the glue liquid is about 60cm / min. In the step (2), the drying temperature is 230-250 DEG C and the drying time is 15-25min. The thermal conductivity coefficient of the high-thermal-conductivity-coefficient glass fiber cloth is 1.5W / mk-2.6W / mK at 4 DEG C. According to the high-thermal-conductivity-coefficient glass fiber cloth, the physiochemical properties of the glass fiber cloth can be guaranteed and the thermal conductivity coefficient is increased.

Description

technical field [0001] The invention relates to a glass fiber cloth, in particular to a glass fiber cloth with high thermal conductivity and a manufacturing method thereof. Background technique [0002] With the rapid development of the electronics industry, the performance of copper clad laminates is not only required to have electrical and mechanical properties such as high dielectric constant, low dielectric loss tangent, low thermal expansion coefficient, etc. High thermal conductivity, because electronic components are getting smaller and smaller. If the heat cannot penetrate and dissipate well under working conditions, it will seriously affect the performance of itself and the components or equipment it is composed of. In severe cases, it may even cause Danger. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a glass fiber cloth with high thermal conductivity and its manufacturing me...

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
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/79D06M11/45D06M11/80D06M15/256
CPCD06M11/45D06M11/79D06M11/80D06M15/256
Inventor 邵亚国梁杰邵爱国赵中伟
Owner 江苏富仕德科技发展有限公司