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Preparation method of insulating spacer with outstanding heat-conducting property

A technology for insulating gaskets and thermal conductivity, which is applied in the field of preparation of insulating gaskets, can solve the problems of reducing the application range of insulating gaskets, prone to embrittlement, poor thermal conductivity, etc., and achieves excellent mechanical properties and performance, and thermal conductivity Prominent and reasonable process arrangement

Inactive Publication Date: 2014-02-19
KUNSHAN FENFA INSULATING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The middle layer is mostly made of glass fiber, which has good strength and insulation properties, but poor thermal conductivity, and is prone to brittle cracks in the process of alternating cold and heat, which affects the overall performance of the insulating gasket
The surface and bottom layers of insulating gaskets are mostly made of silicone rubber. Silicone rubber has excellent heat resistance, cold resistance and ozone resistance, but its thermal conductivity is poor, and it cannot be applied to some electronic products with high heat dissipation requirements. The scope of application of this type of insulating gasket
To sum up, the current insulating gaskets cannot fully take into account the mechanical properties and thermal conductivity, the material selection of insulating gaskets needs to be improved, and the comprehensive performance needs to be further improved and improved.

Method used

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  • Preparation method of insulating spacer with outstanding heat-conducting property

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Comparison scheme
Effect test

Embodiment 1

[0018] The specific preparation process of the preparation method of the insulating gasket with outstanding thermal conductivity mentioned in the present invention is as follows:

[0019] a) Prepare the middle layer, the middle layer is a blended fabric of polyester fiber strips and carbon fiber strips, the blending ratio of the two is about 60%:40%; the middle layer is prepared by warp and weft weaving technology, the warp yarns are polyester fiber strips, The diameter is about 0.01-0.012mm, the weft is carbon fiber strips, the wire diameter is about 0.008-0.01mm, the ratio of warp and weft is 3:2, the weaving density is 196*164, and the forming thickness is about 0.05-0.06mm;

[0020] b) Prepare the surface layer and the bottom layer. The surface layer and the bottom layer are modified silicone rubber layers. The main components and their percentage ratios are: 55% silicone rubber powder, 3% boron nitride powder, and aluminum oxide powder 12%, carbon black 12%, coupling agen...

Embodiment 2

[0027] The specific preparation process of the preparation method of the insulating gasket with outstanding thermal conductivity mentioned in the present invention is as follows:

[0028] a) Prepare the middle layer. The middle layer is a blended fabric of polyester fiber strips and carbon fiber strips. The blending ratio of the two is about 65%: 35%. The middle layer is prepared by warp and weft weaving technology, and the warp yarns are polyester fiber strips. The diameter is about 0.01-0.012mm, the weft is carbon fiber strips, the wire diameter is about 0.008-0.01mm, the ratio of warp and weft is 3:2, the weaving density is 196*164, and the forming thickness is about 0.05-0.06mm;

[0029] b) Prepare the surface layer and the bottom layer. The surface layer and the bottom layer are modified silicone rubber layers. The main components and their percentage ratios are: 60% silicone rubber powder, 2% boron nitride powder, and aluminum oxide powder 15%, carbon black 8%, coupling ...

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Abstract

The invention discloses a preparation method of an insulating spacer with an outstanding heat-conducting property. The preparation method comprises the following steps: preparing a middle layer; preparing surface layer and bottom layer materials; coating a surface layer; coating a bottom layer; carrying out sulfidizing; mechanically cutting. The preparation method of the insulating spacer with the outstanding heat-conducting property is reasonable in process arrangement, easy and convenient to implement, and moderate in cost; the prepared insulating spacer is excellent in mechanical property and using property, and particularly, a continuous efficient three-dimensional heat-conducting system is formed among the surface layer, the middle layer and the bottom layer, so that the heat conduction property of the insulating spacer is outstanding, and the preparation method is particularly suitable for application to electronic products with the high heat dissipation requirement.

Description

technical field [0001] The invention relates to a preparation method of an insulating gasket, in particular to a preparation method of an insulating gasket with outstanding thermal conductivity, and belongs to the technical field of insulating materials. Background technique [0002] Insulating gaskets are precisely cut from composite insulator materials. The insulating gaskets are easy to install and use, and have excellent sealing performance. They can be used in environments such as hot water, high temperature, high-pressure steam, hydrogen, ammonia, solvents, hydrocarbons, and ultra-low temperature liquids. It is suitable for various pipelines, valves, pumps, heat exchangers, condensers, pressure vessels, tower manholes, water level gauges, liquid level gauges, etc., and has a wide range of applications. [0003] For some insulating gaskets that require higher mechanical properties and withstand voltage breakdown performance, people usually add a functional intermediate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/08B32B27/36B32B27/28B32B9/04C08L83/04C08K13/02C08K3/38C08K3/22C08K3/04
Inventor 周巧芬
Owner KUNSHAN FENFA INSULATING MATERIALS