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

Heat-conducting material and preparation process thereof

A technology of heat-conducting materials and inhibitors, applied in the direction of heat exchange materials, coatings, chemical instruments and methods, etc., can solve the problems of poor thermal conductivity of silica gel pads, limited application range, insufficient heat conduction channels, etc., to facilitate calendering processing, Improve the effect of stretching and tearing, good heat soaking function

Pending Publication Date: 2021-11-30
深圳市浩宇泰科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, for thermally conductive silica gel, its main heat conduction mechanism is through heat conduction. The heat conduction channels inside and outside the currently used thermally conductive silica gel are insufficient, resulting in poor thermal conductivity of the silica gel pad, which limits its application range.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heat-conducting material and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] Further, the preparation method of the modified alumina particles comprises the following steps:

[0039] S21, put hexamethyldisilazane into propanol, stir and mix with an electromagnetic stirrer, the stirring speed is 300r / min-450r / min, and the stirring time is 30min, and prepare a mixed solution;

[0040] S22, adding spherical alumina particles into the mixed solution, and obtaining modified spherical alumina particles after stirring and drying.

[0041] Further, the rotation speed of the agitator in S2 is 3500r / min-4000r / min, the stirring time is 15min-30min, the high-temperature vulcanization molding temperature is 155°C-175°C, and the vulcanization time is 60min-80min.

[0042] Further, the initial kneading temperature of the vacuum kneader in S2 is 95°C-100°C, the initial kneading time is 100min-120min, the secondary kneading temperature of the vacuum kneader is 120°C-130°C, and the secondary kneading time is 50min-60min .

[0043] Further, the hot air vulcaniza...

Embodiment example 1

[0047] Weigh 45 parts of hexamethyldisilazane, 100 parts of methanol and 700 parts of alumina particles, put hexamethyldisilazane into propanol, stir and mix with an electromagnetic stirrer, the stirring speed is 450r / min, The stirring time is 30min, and it is configured into a mixed solution, and then spherical alumina particles are added to the mixed solution. After stirring and drying, the stirring time is 1h, and the drying is carried out twice. When drying for the first time, the drying temperature is 120°C, the time is 1.5h, during the second drying, the temperature is 160°C, the time is 0.5h, and the modified spherical alumina particles are obtained;

[0048] Weigh 100 parts of methyl vinyl silicone oil, 15 parts of hydrogen-containing silicone oil, 300 parts of modified alumina particles, 50 parts of graphene fiber powder, 90 parts of propanol solution, 5 parts of coupling agent, 8 parts of catalyst, inhibitor 9 parts, 15 parts of cross-linking agent, 20 parts of antio...

Embodiment example 2

[0052] Weigh 45 parts of hexamethyldisilazane, 100 parts of methanol and 700 parts of alumina particles, put hexamethyldisilazane into propanol, stir and mix with an electromagnetic stirrer, the stirring speed is 450r / min, The stirring time is 30min, and it is configured into a mixed solution, and then spherical alumina particles are added to the mixed solution. After stirring and drying, the stirring time is 1h, and the drying is carried out twice. When drying for the first time, the drying temperature is 120°C, the time is 1.5h, during the second drying, the temperature is 160°C, the time is 0.5h, and the modified spherical alumina particles are obtained;

[0053] Weigh 130 parts of methyl vinyl silicone oil, 25 parts of hydrogen-containing silicone oil, 400 parts of modified alumina particles, 75 parts of graphene fiber powder, 90 parts of propanol solution, 5 parts of coupling agent, 8 parts of catalyst, inhibitor 9 parts, 15 parts of cross-linking agent, 20 parts of antio...

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

No PUM Login to View More

Abstract

The invention relates to the technical field of heat-conducting silica gel, and in particular, relates to a heat-conducting material and a preparation process thereof. The heat-conducting material comprises methyl vinyl silicone oil, hydrogen-containing silicone oil, modified aluminum oxide particles, graphene fiber powder, a propyl alcohol solution, a coupling agent, a catalyst, an inhibitor, a cross-linking agent, an antioxidant and a flame retardant; and the heat-conducting silica gel comprises the components by weight: 100 to 150 parts of methyl vinyl silicone oil, 15 to 30 parts of hydrogen-containing silicone oil, 300 to 500 parts of the modified aluminum oxide particles, 50 to 100 parts of the graphene fiber powder, 80 to 100 parts of the propyl alcohol solution, 1 to 5 parts of the coupling agent, 2 to 8 parts of the catalyst, 5 to 9 parts of the inhibitor, 10 to 15 parts of the cross-linking agent, 15 to 20 parts of the antioxidant and 10 to 15 parts of the flame retardant. The problems that at present, for heat-conducting silica gel, the main heat conduction mechanism is carried out through heat conduction, heat-conducting channels inside and outside heat-conducting silica gel adopted at present are insufficient, so that the heat-conducting performance of a silica gel pad is poor, and the application range of the silica gel pad is limited can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of heat-conducting silica gel, in particular to a heat-conducting material and a preparation process. Background technique [0002] Thermally conductive silicone sheet is a thermally conductive medium composite material based on silica gel. With certain flexibility, excellent insulation, compressibility, and natural stickiness on the surface, there are certain differences in the production process of thermally conductive silicone sheets of different manufacturers: thermally conductive materials based on general solid organic silica gel. [0003] At present, for thermally conductive silica gel, its main heat conduction mechanism is through heat conduction. The heat conduction channels inside and outside the currently used thermally conductive silica gel are insufficient, resulting in poor thermal conductivity of the silica gel pad, which limits its application range. [0004] To sum up, the present invention...

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
IPC IPC(8): C08L83/07C08L83/05C08K9/06C08K7/18C08K3/22C08J5/18C08J7/04C09D183/05C09D7/61C09K5/14
CPCC08J5/18C08J7/0427C09D183/04C09D7/61C09D7/70C09K5/14C08J2383/07C08J2483/05C08K9/06C08K7/18C08K2003/2227C08K7/06C08K3/042
Inventor 蒲素
Owner 深圳市浩宇泰科技有限公司