CN1944569A - Heat conductive composite material and its preparing method - Google Patents
Heat conductive composite material and its preparing method Download PDFInfo
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- CN1944569A CN1944569A CN 200610140525 CN200610140525A CN1944569A CN 1944569 A CN1944569 A CN 1944569A CN 200610140525 CN200610140525 CN 200610140525 CN 200610140525 A CN200610140525 A CN 200610140525A CN 1944569 A CN1944569 A CN 1944569A
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- heat
- composite material
- high temperature
- conductive composite
- temperature resistant
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Abstract
The present invention is one kind of heat conducting composite material a is preparation process. The heat conducting composite material is prepared with heat resisting polybutene or heat resisting reinforced medium density polyethylene, natural scale graphite powder, asphalt base carbon fiber, coupler and antioxidant, and through stirring and pelletizing. It is used in heat conducting, heat dissipating, heat exchanging and other fields, and possesses the advantages of antistatic, anticorrosion, heat resistance, low cost, long service life, etc.
Description
Technical field
The present invention relates to a kind of matrix material that is applied to fields such as heat conduction, heat radiation, heat exchange and preparation method thereof.
Background technology
How existing heat conduction, heat radiation, heat exchange material are made with various alloys or metallic substance, the shortcoming of have cost height, complicated process of preparation, easily be corroded, the life-span is short.In recent years, also have individually about prepare the report that scatterer etc. installs with modified polypropene, polythene material.
Summary of the invention
The objective of the invention is to overcome the shortcoming that is difficult to overcome that existing heat conduction, heat radiation, heat exchange material are had, provide a kind of anti-electrostatic, corrosion-resistant, high temperature resistant, cost is low, the life-span is long, and the simple matrix material of subsequent machining technology.
Technical scheme of the present invention is as follows:
This heat-conductive composite material is made by the raw material of following weight part: high temperature resistant polybutene or high temperature resistant enhancing medium-density polyethylene 45-60 part, the natural scale high-carbon graphite of 1200-3000 order powder 35-50 part, asphalt base carbon fiber 2-15 part, aluminate coupling agent 1.5-4 part, oxidation inhibitor 0.5-2 part.
The method for preparing this kind matrix material is: (1) is stirred to 80 ℃-130 ℃ with natural scale high-carbon graphite powder and asphalt base carbon fiber on stirrer; (2) add aluminate coupling agent; (3) add high temperature resistant polybutene or high temperature resistant enhancing medium-density polyethylene and oxidation inhibitor and stir, reach 150 ℃-200 ℃ to temperature; (4) material is put into low-speed mixer and be cooled to the state of not luming, temperature is between 70 ℃-90 ℃; (5) material is put into reciprocating type tablets press granulation.
Patent of the present invention is compared with the existing heat-conductive composite material of moulding base-material that relates to, and has remarkable advantages, has substantive distinguishing features and obvious improvement:
(1) heat-conductive composite material of patent of the present invention is selected for use and is moulded base-material, high temperature resistant polybutene and high temperature resistant enhancing medium-density polyethylene use ageing resistance good at high temperature below 110 ℃, the domestic normally used polyethylene of these two kinds of base-material thermal conductivity ratios, the high twice of polypropylene are many generally about 50 years usage period in civil equipment.
(2) in the present invention, one of heat conduction subsidiary material are selected the natural scale high-carbon graphite powder of particle diameter≤5um for use, solve the crystalline flake graphite problem that differs greatly of direction heat conduction in length and breadth, and avoided expanded graphite and need 800 ℃ of-1000 ℃ of burning methods of high temperature, greatly reduced energy and equipment input.
(3) in the present invention, selected cheap and heat conductivility asphalt base carbon fiber simultaneously for use far above the PAN carbon fiber.
(4) in the present invention, coupling agent is selected aluminate coupling agent for use, and it is a product innovation in recent years, is that good dispersity, treatment effect are much better than existing titanate coupling agent to the coupling agent of graphite-filled plastics pre-treatment the best,
The at present existing selected heat conduction subsidiary material of patent mainly contain ceramic fiber, expanded graphite and metal powder etc., all have obvious defects: (1) ceramic fiber belongs to lagging material, thermal conductivity is low, and is also lower than the thermal conductivity of polyolefine own, is difficult to occur low effect of filling high heat conduction; (2) expanded graphite needs could to use after high temperature barbecue (800 ℃-1000 ℃), and this kind equipment has high input, and consumes energy extremely; (3) add metal-powder, as bronze powder, aluminum oxide powder, magnesia powder etc., high from saying metal price economically, to remove the base-material of filling far above it again from its density of technology, problems such as weighting material bad dispersibility can appear, moreover 20% metal powder is done to fill the heat conduction auxiliary material, does not reach the purpose of high heat conduction at all.
Therefore, the present invention can go out the product of real environment-friendly high-efficiency with less energy-consumption, low equipment input, low cost production, and this is that other is invented can't be obtained in similar application at present.
Embodiment
Embodiment one:
240 kilograms in the natural scale high-carbon graphite of 1500 orders powder and asphalt base carbon fiber are stirred to 110 ℃ for 60 kilograms on stirrer; add 12 kilograms of aluminate coupling agents; add 6 kilograms in 300 kilograms of high temperature resistant polybutene and oxidation inhibitor; be stirred to 180 ℃; material is put into low-speed mixer be cooled to when not luming, put to the tablets press granulation.
Embodiment two:
430 kilograms in the natural scale high-carbon graphite of 3000 orders powder and asphalt base carbon fiber are stirred to 110 ℃ for 50 kilograms on stirrer; add 20 kilograms of aluminate coupling agents; add 12 kilograms in 520 kilograms of high temperature resistant enhancing medium-density polyethylenes and oxidation inhibitor; be stirred to 180 ℃; material is put into low-speed mixer be cooled to when not luming, put to the tablets press granulation.
Claims (3)
1. heat-conductive composite material is characterized in that this material made by the raw material of following weight part: high temperature resistant polybutene 45-60 part, the natural scale high-carbon graphite of 1200-3000 order powder 35-50 part, asphalt base carbon fiber 2-15 part, aluminate coupling agent 1.5-4 part, oxidation inhibitor 0.5-2 part.
2. heat-conductive composite material is characterized in that this material made by the raw material of following weight part: high temperature resistant enhancing medium-density polyethylene 45-60 part, the natural scale high-carbon graphite of 1200-3000 order powder 35-50 part, asphalt base carbon fiber 2-15 part, aluminate coupling agent 1.5-4 part, oxidation inhibitor 0.5-2 part.
3. method for preparing heat-conductive composite material as claimed in claim 1 or 2 is characterized in that:
(1) natural scale high-carbon graphite powder and asphalt base carbon fiber are stirred to 80 ℃-130 ℃ on stirrer;
(2) add aluminate coupling agent;
(3) add high temperature resistant enhancing medium-density polyethylene or high temperature resistant polybutene and oxidation inhibitor and stir, reach 150 ℃-200 ℃ to temperature;
(4) material is put into low-speed mixer and be cooled to the state of not luming, temperature is between 70 ℃-90 ℃;
(5) material is put into reciprocating type tablets press granulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101405250A CN1944569B (en) | 2006-10-16 | 2006-10-16 | Heat conductive composite material and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101405250A CN1944569B (en) | 2006-10-16 | 2006-10-16 | Heat conductive composite material and its preparing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1944569A true CN1944569A (en) | 2007-04-11 |
| CN1944569B CN1944569B (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101405250A Expired - Fee Related CN1944569B (en) | 2006-10-16 | 2006-10-16 | Heat conductive composite material and its preparing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN1944569B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787161B (en) * | 2010-01-15 | 2011-12-21 | 周士钦 | Aluminum-plastic composite heat radiator and preparation method of special heat conduction plastic alloy for inner layer |
| CN102898713A (en) * | 2012-11-05 | 2013-01-30 | 科创聚合物(苏州)有限公司 | Manufacturing process of electromagnetic polyethylene material |
| CN104446587A (en) * | 2014-11-24 | 2015-03-25 | 天津大学 | Preparation method of carbon-based composite material with high heat conductivity coefficients in both plane direction and thickness direction |
| CN105175907A (en) * | 2015-07-29 | 2015-12-23 | 徐继煌 | Thermal conductive plastic alloy, radiator based on alloy and preparation method |
| CN106091792A (en) * | 2016-06-17 | 2016-11-09 | 山东省滕州瑞达化工有限公司 | Radiating core, radiator and the application in heat exchange core of the 1 cyclobutenyl polymer |
| CN106773425A (en) * | 2017-02-28 | 2017-05-31 | 厦门天马微电子有限公司 | Display panel and display device |
| CN107418068A (en) * | 2017-08-29 | 2017-12-01 | 太原科技大学 | A kind of natural-fiber composite material of polybutene 1/ and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162504C (en) * | 2002-07-09 | 2004-08-18 | 杭州华电华源环境工程有限公司 | Heat-conducting polymer material and its prepn |
-
2006
- 2006-10-16 CN CN2006101405250A patent/CN1944569B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787161B (en) * | 2010-01-15 | 2011-12-21 | 周士钦 | Aluminum-plastic composite heat radiator and preparation method of special heat conduction plastic alloy for inner layer |
| CN102898713A (en) * | 2012-11-05 | 2013-01-30 | 科创聚合物(苏州)有限公司 | Manufacturing process of electromagnetic polyethylene material |
| CN104446587A (en) * | 2014-11-24 | 2015-03-25 | 天津大学 | Preparation method of carbon-based composite material with high heat conductivity coefficients in both plane direction and thickness direction |
| CN105175907A (en) * | 2015-07-29 | 2015-12-23 | 徐继煌 | Thermal conductive plastic alloy, radiator based on alloy and preparation method |
| CN106091792A (en) * | 2016-06-17 | 2016-11-09 | 山东省滕州瑞达化工有限公司 | Radiating core, radiator and the application in heat exchange core of the 1 cyclobutenyl polymer |
| CN106773425A (en) * | 2017-02-28 | 2017-05-31 | 厦门天马微电子有限公司 | Display panel and display device |
| CN107418068A (en) * | 2017-08-29 | 2017-12-01 | 太原科技大学 | A kind of natural-fiber composite material of polybutene 1/ and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN1944569B (en) | 2011-01-26 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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Addressee: Zhou Shiqin Document name: Notification of Approving Refund |