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Heat-conducting gel with ultralow oil separation amount and high flow rate performance and preparation method thereof

A technology with high flow rate and oil separation, applied in the direction of chemical instruments and methods, heat exchange materials, etc., can solve the problem of high oil separation rate of thermally conductive gels, achieve precise control of glue output, increase flow rate, and ultra-low oil separation volume effect

Inactive Publication Date: 2020-11-17
广东鼎泰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of the formulation process, the oil separation rate of thermally conductive gels is generally too high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A thermally conductive gel with ultra-low oil release and high flow rate performance in this embodiment is composed of the following components by weight:

[0047] 60 parts of powder;

[0048] 1 part silicone oil;

[0049] 0.05 parts of curing agent;

[0050] 0.1 part of treatment agent;

[0051] Catalyst 0.01 part;

[0052] 0.01 parts of color paste;

[0053] Among them, the powder is composed of spherical alumina with three different particle sizes, and their weight percentages are as follows:

[0054] Spherical alumina with particle size of 30-50μm: 40%;

[0055] Spherical alumina with a particle size of 10-30μm: 30%;

[0056] Spherical alumina with a particle size of 0.1-10 μm: 30%.

[0057] Silicone oil is vinyl silicone oil. The viscosity of silicone oil is 100-3000cps. The curing agent is a mixture of terminal hydrogen silicone oil and side cyanosilicone oil. The treating agent is aminopropyltrimethoxysilane. The catalyst is chloroplatinic acid, and th...

Embodiment 2

[0068] A thermally conductive gel with ultra-low oil release and high flow rate performance in this embodiment is composed of the following components by weight:

[0069] 75 parts of powder;

[0070] 20 parts of silicone oil;

[0071] 3 parts curing agent;

[0072] 2 parts of treatment agent;

[0073] 0.5 parts of catalyst;

[0074] 0.1 parts of color paste;

[0075] Described powder is made up of spherical alumina of three different particle sizes, and their weight percent is as follows:

[0076] Spherical alumina with a particle size of 30-50μm: 60%;

[0077] Spherical alumina with a particle size of 10-30μm: 20%;

[0078] Spherical alumina with a particle size of 0.1-10 μm: 20%.

[0079] Silicone oils are phenyl silicone oil and hydroxy silicone oil. The viscosity of silicone oil is 100-3000cps. The curing agent is a mixture of terminal hydrogen silicone oil and side cyanosilicone oil. The treating agent is vinyl triethoxysiloxane, the catalyst is chloroplatinic a...

Embodiment 3

[0082] A thermally conductive gel with ultra-low oil release and high flow rate performance in this embodiment is composed of the following components by weight:

[0083] 98 parts of powder;

[0084] 50 parts of silicone oil;

[0085] 5 parts curing agent;

[0086] 5 parts of treatment agent;

[0087] 1 part catalyst;

[0088] 1 part of color paste;

[0089] Described powder is made up of spherical alumina of three different particle sizes, and their weight percent is as follows:

[0090] Spherical alumina with particle size of 30-50μm: 90%;

[0091] Spherical alumina with a particle size of 10-30μm: 5%;

[0092] Spherical alumina with a particle size of 0.1-10 μm: 5%.

[0093] Silicone oils are dimethyl silicone oil and amino silicone oil. The viscosity of silicone oil is 100-3000cps. The curing agent is a mixture of terminal hydrogen silicone oil and side cyanosilicone oil. The treating agents are 3-aminopropyltriethoxysilane and vinyltrimethoxysiloxane. The catal...

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Abstract

The invention discloses heat-conducting gel with an ultralow oil separation amount and high flow rate performance and a preparation method thereof. The heat-conducting gel comprises the following components in parts by weight: 60-98 parts of powder; 1-50 parts of silicone oil; 0.05-5 parts of a curing agent; 0.1-5 parts of a treatment agent; 0.01-1 part of a catalyst; and 0.01-1 part of a color paste. The powder is composed of three kinds of spherical aluminum oxide with different particle sizes, and is composed of 40%-90% by weight of the spherical aluminum oxide with the particle size of 30-50 microns; 5%-30% by weight of the spherical aluminum oxide with the particle size of 10-30 microns; and 5%-30% by weight of the spherical aluminum oxide with the particle size of 0.1-10 microns. Theoil separation amount of the heat-conducting gel is smaller than or equal to 12 mm (55 DEG C / 168 h), the flow velocity is larger than or equal to 6.5 g / min (1.55 mm@90 psi), and the performance of ultralow oil separation amount and high flow velocity is achieved.

Description

technical field [0001] The invention relates to the technical field of heat-conducting interface materials used in the intelligent communication industry, in particular to a heat-conducting gel with ultra-low oil separation and high flow rate performance and a preparation method thereof. Background technique [0002] With the rapid development of the smartphone industry and the advent of the era of 5G smartphones, the power consumption of mobile phone CPU&GPU and other chipsets is increasing, and the resulting heat is also increasing. If the heat generated by the chipset cannot be dissipated in time, the temperature of the hot spot will be too high, which will reduce the function and life of the chip on the main board of the mobile phone. Therefore, the heat dissipation of smartphone chipsets will become one of the most important hot spots for mobile phone manufacturers. [0003] For the heat dissipation of heat sources such as CPU&GPU chips, the most common method is to us...

Claims

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Application Information

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IPC IPC(8): C09K5/14C08L83/04C08L83/08C08K13/04C08K5/544C08K5/5425C08K7/18
CPCC08K2201/005C08K2201/014C08L83/04C08L83/08C08L2205/03C08L2205/035C09K5/14C08K13/04C08K7/18C08K5/5425C08K5/544
Inventor 黄华利
Owner 广东鼎泰新材料科技有限公司