CN104893120A - High-strength high-heat-conductivity composite material - Google Patents
High-strength high-heat-conductivity composite material Download PDFInfo
- Publication number
- CN104893120A CN104893120A CN201510312824.7A CN201510312824A CN104893120A CN 104893120 A CN104893120 A CN 104893120A CN 201510312824 A CN201510312824 A CN 201510312824A CN 104893120 A CN104893120 A CN 104893120A
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- Prior art keywords
- heat
- composite material
- vulcanizing agent
- rubber
- high strength
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a high-strength high-heat-conductivity composite material which is composed of the following raw materials in percentage by mass: 20-45 wt% of ethylene-propylene rubber, 10-20 wt% of high-density polyethylene, 5-10 wt% of carbon fiber, 2-4 wt% of polyethyleneglycol, 2-10 wt% of vulcanizing agent and 30-50 wt% of heat-conducting filler. The invention also discloses a preparation method of the high-strength high-heat-conductivity composite material. The composite material can be used for multiple high-heat occasions, has the advantages of favorable heat dispersion property and higher strength, and is convenient to use. The composite material has the characteristics of accessible materials, simple manufacturing technique and the like, and is easy to implement.
Description
Technical field
The present invention relates to technical field of composite materials, be specifically related to a kind of high strength high-heat-conductive composite material.
Background technology
Matrix material is by two or more material of different nature, and by the method for physics or chemistry, on macroscopic view/microcosmic, composition has the material of new capability.Various material makes up for each other's deficiencies and learn from each other in performance, produces synergistic effect, makes the over-all properties of matrix material be better than former composition material and meet various different requirement.
Modern power electronics is promptly to high integration, High Density Packaging, high travelling speed future development.As the chip of power electronics devices core, the dominant frequency of work is more and more faster, and the power consumption of consumption is increasing, and the heat sent also gets more and more.The heat flow density of electronics improves day by day, becomes harsh challenge to the thermal control of electronics.If the heat-sinking capability of device is not strong, then the dissipation of power will cause device inside chip active area temperature to rise and junction temperature rising.Heat treatment is improper is the major reason causing modern electronic product to lose efficacy.For making electronic system and components and parts work continually and steadily, it is very important for carrying out effectively reliably heat radiation to it, therefore researches and develops high efficiency heat-conductive composite material and correlation technique is very urgent.Metal is first-selected heat sink material owing to having good heat conductivility, but metal composite density is large, and cost is compared with high and difficulty of processing is large; Existing nonmetallic heat conductive matrix material ubiquity intensity is not high, the phenomenons such as thermal conductivity is low.
Summary of the invention
Not enough for prior art, the invention provides a kind of matrix material with high thermal conductivity coefficient and high strength.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of high strength high-heat-conductive composite material, is made up of the raw material of following mass percent: ethylene-propylene rubber(EPR) 20 ~ 45wt%, high density polyethylene(HDPE) 10 ~ 20wt%, carbon fiber 5 ~ 10wt%, polyoxyethylene glycol 2 ~ 4wt%, vulcanizing agent 2 ~ 10wt%, heat conductive filler 30 ~ 50wt%.
Described vulcanizing agent is the multifunctional silane compound containing hydrolysable group.
Described heat conductive filler is aluminium powder and/or aluminum oxide, and the order granularity of described aluminium powder is 100 ~ 800 orders, and the order granularity of described aluminum oxide is 300 ~ 2000 orders.
The preparation method of described a kind of high strength high-heat-conductive composite material, comprises the following steps:
Take required ethylene-propylene rubber(EPR) by mass percentage, and be fed in closed rubber mixing machine, start is carried out rubber with the speed of 40r/min and is plasticated, time 3min, then carbon fiber, polyoxyethylene glycol, heat conductive filler, high density polyethylene(HDPE) is added successively, mixing 10min, discharges sizing material on opening rubber mixing machine, discharges sizing material temperature within the scope of 100 ~ 120 DEG C; Roller of Opened Refine Rubber Machine temperature is set as 45 ~ 60 DEG C, and roll spacing is set as 7 ~ 9mm, makes sizing material on opening rubber mixing machine, be able to quick cooling; When sizing material is cooled to below 100 DEG C, add vulcanizing agent, fully mix, then slice or pelletizing, pack after being cooled to room temperature.
The beneficial effect that the present invention possesses is: high strength high-heat-conductive composite material of the present invention can be directly close on display panel, contribute to eliminating vibrations and noise that display panel produces, and change into heat energy after being absorbed by the hertzian wave that display panel produces, and pass to backboard below by this matrix material and dissipate; In addition, matrix material of the present invention can also be used for multiple high thermal field and close, and has higher intensity, easy to use; The features such as matrix material of the present invention has material and is easy to get, and manufacture craft is simple, easy to implement.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further.
Embodiment 1: a kind of high strength high-heat-conductive composite material, is made up of the raw material of following mass percent: ethylene-propylene rubber(EPR) 30wt%, high density polyethylene(HDPE) 15wt%, carbon fiber 7wt%, polyoxyethylene glycol 3wt%, vulcanizing agent 5wt%, heat conductive filler 40wt%.
In the present embodiment, described vulcanizing agent is the multifunctional silane compound containing hydrolysable group; Described heat conductive filler is aluminium powder and aluminum oxide, and the order granularity of described aluminium powder is 100 ~ 800 orders, and the order granularity of described aluminum oxide is 300 ~ 2000 orders.
The preparation method of described a kind of high strength high-heat-conductive composite material, comprises the following steps:
Take required ethylene-propylene rubber(EPR) by mass percentage, and be fed in closed rubber mixing machine, start is carried out rubber with the speed of 40r/min and is plasticated, time 3min, then carbon fiber, polyoxyethylene glycol, heat conductive filler, high density polyethylene(HDPE) is added successively, mixing 10min, discharges sizing material on opening rubber mixing machine, discharges sizing material temperature within the scope of 100 ~ 120 DEG C; Roller of Opened Refine Rubber Machine temperature is set as between 45 ~ 60 DEG C, roll spacing is set as between 7 ~ 9mm, makes sizing material on opening rubber mixing machine, be able to quick cooling; When sizing material is cooled to below 100 DEG C, add vulcanizing agent, fully mix, then slice or pelletizing, pack after being cooled to room temperature.Same the present embodiment of preparation method of a kind of high strength high-heat-conductive composite material in following examples.
Embodiment 2: a kind of high strength high-heat-conductive composite material, is made up of the raw material of following mass percent: ethylene-propylene rubber(EPR) 45wt%, high density polyethylene(HDPE) 10wt%, carbon fiber 5wt%, polyoxyethylene glycol 4wt%, vulcanizing agent 6wt%, heat conductive filler 30wt%.
In the present embodiment, described vulcanizing agent is the multifunctional silane compound containing hydrolysable group; Described heat conductive filler is aluminium powder, and the order granularity of described aluminium powder is 100 ~ 800 orders.
Embodiment 3: a kind of high strength high-heat-conductive composite material, is made up of the raw material of following mass percent: ethylene-propylene rubber(EPR) 25wt%, high density polyethylene(HDPE) 20wt%, carbon fiber 10wt%, polyoxyethylene glycol 2wt%, vulcanizing agent 2wt%, heat conductive filler 41wt%.
In the present embodiment, described vulcanizing agent is the multifunctional silane compound containing hydrolysable group; Described heat conductive filler is aluminum oxide, and the order granularity of described aluminum oxide is 300 ~ 2000 orders.
Embodiment 4: a kind of high strength high-heat-conductive composite material, is made up of the raw material of following mass percent: ethylene-propylene rubber(EPR) 35wt%, high density polyethylene(HDPE) 12wt%, carbon fiber 6wt%, polyoxyethylene glycol 3wt%, vulcanizing agent 9wt%, heat conductive filler 35wt%.
In the present embodiment, described vulcanizing agent is the multifunctional silane compound containing hydrolysable group; Described heat conductive filler is aluminium powder oxidation aluminium, and the order granularity of described aluminium powder is 100 ~ 800 orders, and the order granularity of described aluminum oxide is 300 ~ 2000 orders.
Claims (5)
1. a high strength high-heat-conductive composite material, it is characterized in that, be made up of the raw material of following mass percent: ethylene-propylene rubber(EPR) 20 ~ 45wt%, high density polyethylene(HDPE) 10 ~ 20wt%, carbon fiber 5 ~ 10wt%, polyoxyethylene glycol 2 ~ 4wt%, vulcanizing agent 2 ~ 10wt%, heat conductive filler 30 ~ 50wt%.
2. a kind of high strength high-heat-conductive composite material according to claim 1, is characterized in that: be made up of the raw material of following mass percent: ethylene-propylene rubber(EPR) 30wt%, high density polyethylene(HDPE) 15wt%, carbon fiber 7wt%, polyoxyethylene glycol 3wt%, vulcanizing agent 5wt%, heat conductive filler 40wt%.
3. a kind of high strength high-heat-conductive composite material according to claim 1 and 2, is characterized in that: described vulcanizing agent is the multifunctional silane compound containing hydrolysable group.
4. a kind of high strength high-heat-conductive composite material according to claim 1 and 2, it is characterized in that: described heat conductive filler is aluminium powder and/or aluminum oxide, the order granularity of described aluminium powder is 100 ~ 800 orders, the order granularity of described aluminum oxide is 300 ~ 2000 orders.
5. the preparation method of a kind of high strength high-heat-conductive composite material described in claim 1 or 2, is characterized in that, comprise the following steps:
Take required ethylene-propylene rubber(EPR) by mass percentage, and be fed in closed rubber mixing machine, start is carried out rubber with the speed of 40r/min and is plasticated, time 3min, then carbon fiber, polyoxyethylene glycol, heat conductive filler, high density polyethylene(HDPE) is added successively, mixing 10min, discharges sizing material on opening rubber mixing machine, discharges sizing material temperature within the scope of 100 ~ 120 DEG C; Roller of Opened Refine Rubber Machine temperature is set as 45 ~ 60 DEG C, and roll spacing is set as 7 ~ 9mm, makes sizing material on opening rubber mixing machine, be able to quick cooling; When sizing material is cooled to below 100 DEG C, add vulcanizing agent, fully mix, then slice or pelletizing, pack after being cooled to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510312824.7A CN104893120A (en) | 2015-06-09 | 2015-06-09 | High-strength high-heat-conductivity composite material |
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| CN201510312824.7A CN104893120A (en) | 2015-06-09 | 2015-06-09 | High-strength high-heat-conductivity composite material |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102504358A (en) * | 2011-11-22 | 2012-06-20 | 广东石油化工学院 | High-heat-conductivity rubber composite material and preparation method thereof |
| CN104017267A (en) * | 2014-06-13 | 2014-09-03 | 深圳市沃尔核材股份有限公司 | Heat-conducting wire cable electric-insulation material or sheath material |
| CN104045896A (en) * | 2014-06-09 | 2014-09-17 | 北京华创瑞风空调科技有限公司 | Heat-conductive polyethylene composite material and preparation method thereof |
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2015
- 2015-06-09 CN CN201510312824.7A patent/CN104893120A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102504358A (en) * | 2011-11-22 | 2012-06-20 | 广东石油化工学院 | High-heat-conductivity rubber composite material and preparation method thereof |
| CN104045896A (en) * | 2014-06-09 | 2014-09-17 | 北京华创瑞风空调科技有限公司 | Heat-conductive polyethylene composite material and preparation method thereof |
| CN104017267A (en) * | 2014-06-13 | 2014-09-03 | 深圳市沃尔核材股份有限公司 | Heat-conducting wire cable electric-insulation material or sheath material |
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Application publication date: 20150909 |
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