Preparation method of longitudinal high thermal conductivity gasket prepared by oriented carbon fiber by controllable compression deformation method

A compression deformation and carbon fiber technology, applied in the field of silica gel sheets, can solve the problems of waste of raw materials, limited height, low production efficiency, etc., and achieve the effects of improving production efficiency, reducing waste, and cutting methods are efficient and simple

Active Publication Date: 2022-06-21
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the stacking height of the fibers, the fibers at the bottom will be crushed under the action of gravity, so the height of the sample is limited, so that the size of the gasket after cutting is small, and the carbon fiber gasket with limited size can only be 50mmX50mm at most, resulting in Low production efficiency and waste of raw materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method for preparing longitudinal high thermal conductivity gaskets from oriented carbon fibers by a controllable compression deformation method, specifically comprising the following steps:

[0034] S1: 120g of carbon fiber, 270g of 500cs vinyl silicone oil, 10g of hydrogen-containing silicone oil (the hydrogen-containing silicone oil was purchased from Guangzhou Jinsilicon, and the hydrogen content is 0.1%), 1000g of spherical alumina, 5g of catalyst platinum complex, and inhibitor of acetylene 0.1 g of base cyclohexanol was mixed uniformly to obtain the initial slurry with thixotropy;

[0035] S2: Pour the initial slurry into the mold (the aspect ratio of the mold is 5:1), the inner surface of the mold is polished and coated with a release agent fluororesin coating, the initial slurry is compacted, and the mold is heated at 80° C. Heating for 10 minutes to make the deformation-oriented slurry reach a semi-cured state, remove the mold, and prepare the fi...

Embodiment 2

[0041] The difference between Example 2 and Example 1 is that the aspect ratio of the mold is 10:1, and the thermal conductivity of the gasket after orientation cutting is 12.2 W / mK.

Embodiment 3

[0043] The difference between Example 3 and Example 1 is that the aspect ratio of the mold is 15:1, and the thermal conductivity of the gasket after orientation cutting is 15.8W / mK.

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Abstract

The invention provides a method for preparing longitudinal high thermal conductivity gaskets from oriented carbon fibers by a controllable compression deformation method. The carbon fibers are oriented and arranged by the controllable compression deformation method, and the subsequent defoaming, vulcanization, cutting, surface treatment, etc. The carbon fiber silicone gasket with a thermal conductivity of 30W / mK in the thickness direction is prepared by the process. This patent can prepare carbon fiber gaskets with an aspect ratio of 20:1, which improves production efficiency and reduces waste.

Description

technical field [0001] The invention belongs to the field of silica gel sheets, and more particularly relates to a preparation method for preparing longitudinal high thermal conductivity gaskets from oriented carbon fibers by a controllable compression deformation method. Background technique [0002] 5G is the current leading mobile communication technology and the key infrastructure to promote the rapid development of the real economy. It has been regarded as a national strategy by various countries, and has become a game between countries, leading technological innovation, entering the digital age, and realizing the key to industrial upgrading. Sexual Technology. However, while the 5G network provides efficient and stable data interaction for terminals, it also poses a severe test for thermal management technology. [0003] In addition, the ultra-high data throughput of 5G will lead to a further increase in power consumption and heat generation while bringing powerful fu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/32
CPCC04B26/32C04B2201/32C04B14/386C04B14/303C04B24/02C04B40/0259C04B40/0272C04B2103/0068
Inventor 祝渊迟克禹唐正阳
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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