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

Manufacturing method for efficient composite heat sink for electronic product

A technology for composite heat sinks and electronic products, applied in chemical instruments and methods, carbon compounds, sustainable manufacturing/processing, etc., can solve problems such as heat dissipation bottlenecks of electronic products, heat dissipation performance cannot meet the heat dissipation requirements of heat dissipation devices, etc., and achieve improved structure Integrity, reduced requirements, and reduced manufacturing costs

Inactive Publication Date: 2017-01-11
SUZHOU SICHUANGYUANBO ELECTRONICS TECH CO LTD
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the mainstream heat dissipation product on the market is graphite heat conduction film. However, its heat dissipation performance is far from meeting the heat dissipation requirements of heat dissipation devices of electronic information products, and has become the heat dissipation bottleneck of most electronic products.

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

[0017] Inject the graphite flakes with a purity of more than 99% and a particle size of 100-300 μm and the stripping liquid into the kettle body with a stirrer, start the motor of the kettle body to stir, and mix the materials evenly. The stripping liquid is composed of ethylene glycol 90 parts by weight, 40 parts by weight of polyacrylate, 1 part by weight of silicon dioxide / poly(methyl methacrylate-styrene) double-shell composite microspheres, and 1 part by weight of lithium chloride. Wherein, the particle diameter of silica / poly(methyl methacrylate-styrene) double-shell composite microspheres is below 50 micrometers, the particle diameter of the silica core is above 20 nanometers, and the thickness of the shell layer is 10 nanometers Above; the number average molecular weight of polyacrylate is greater than 100,000, and the weight ratio of graphite flakes and stripping liquid is 1:3.

[0018] Heat the kettle body, keep the temperature in the kettle body at 90°C, the pressur...

Embodiment 2

[0022] Inject the graphite flakes with a purity of more than 99% and a particle size of 100-300 μm and the stripping liquid into the kettle body with a stirrer, start the motor of the kettle body to stir, and mix the materials evenly. The stripping liquid is composed of ethylene glycol 90 parts by weight, 40 parts by weight of polyacrylate, 1 part by weight of silicon dioxide / poly(methyl methacrylate-styrene) double-shell composite microspheres, and 1 part by weight of lithium chloride. Wherein, the particle diameter of silica / poly(methyl methacrylate-styrene) double-shell composite microspheres is below 50 micrometers, the particle diameter of the silica core is above 20 nanometers, and the thickness of the shell layer is 10 nanometers Above; the number average molecular weight of polyacrylate is greater than 100,000, and the weight ratio of graphite flakes and stripping liquid is 1:3.

[0023] Heat the kettle body, keep the temperature in the kettle body at 90°C, the pressur...

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a manufacturing method for an efficient composite heat sink for an electronic product. The manufacturing method comprises the steps that graphene is peeled off through stripping liquid, in cooperation with grinding or stirring, the requirement for the grinding or stirring speed can be lowered, the graphene can be peeled off without cutting a graphite flake at a high speed, the structural integrality among carbon in the graphene can be increased easily and effectively through nitrogen doping, a used organic or inorganic solid-phase nitrogen source has the beneficial effects of being low in cost and easy to obtain, and the manufacturing cost can be reduced effectively.

Description

technical field [0001] The invention relates to the field of heat dissipation of electronic products, in particular to a method for preparing a high-efficiency composite heat dissipation sheet for electronic products. Background technique [0002] For electronic products, the effective heat dissipation of its various components to obtain a lower operating temperature will have an extremely important impact on its service life and operating speed. With the continuous development and progress of science and technology, especially the multi-core of computer chips has become the mainstream, and the running speed continues to increase, and the power also increases accordingly. Effective heat dissipation plays a decisive role in its running speed. At present, the mainstream heat dissipation product on the market is graphite heat conduction film. However, its heat dissipation performance is far from meeting the heat dissipation requirements of heat dissipation devices of electronic...

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 Applications(China)
IPC IPC(8): B05D7/14B05D7/24C01B32/194C01B32/19
CPCB05D7/14B05D7/24B05D2202/40B05D2252/00B05D2602/00C01P2004/80Y02P20/10
Inventor 不公告发明人
Owner SUZHOU SICHUANGYUANBO ELECTRONICS TECH CO LTD