CN102250425A - Multifunctional heat-conducting composite material - Google Patents
Multifunctional heat-conducting composite material Download PDFInfo
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- CN102250425A CN102250425A CN 201110135832 CN201110135832A CN102250425A CN 102250425 A CN102250425 A CN 102250425A CN 201110135832 CN201110135832 CN 201110135832 CN 201110135832 A CN201110135832 A CN 201110135832A CN 102250425 A CN102250425 A CN 102250425A
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Abstract
The invention discloses a multifunctional heat-conducting composite material, which is formed by compounding 10-40 percent by weight of butyl rubber and 90-60 percent by weight of filler or mixing 10-40 percent by weight of butyl rubber and 90-60 percent by weight of filler, and coating a mixture on an aluminum foil, wherein the filler is formed by mixing 60-100 percent by weight of functional filler and 40-0 percent by weight of auxiliary filler; the functional filler is formed by mixing aluminum powder and heat-conducting aluminum oxide in percent by weight according to a ratio of (55-90):(10-45); and the thickness of the aluminum foil is less than 0.5mm. The material has damping, noise-reduction and wave-absorption functions and can also adsorb electromagnetic waves on a display panel and convert the electromagnetic waves into heat energy. The composite material is mainly applied to back panels such as a PDP (Plasma Display Panel), an LCD (Liquid Crystal Display) display screen and the like.
Description
[technical field]
The present invention relates to thermally conductive material, particularly relate to a kind of can damping noise reduction, absorb the multi-functional heat-conductive composite material that hertzian wave that the plasm TV display panel produces is converted into heat energy then and the heat that produces on the display panel is led away together.
[background technology]
In Plasmia indicating panel, discharge gas is sealed between the top glass substrate and lower glass substrate with a plurality of electrodes, provide discharge gas producing ultraviolet ray, and the ultraviolet ray excited fluorescent layer that forms in predetermined display unit send visible light, with effective acquisition image.
Plasma shows that module regulates the display unit discharge according to video data and hold time, and promptly keeps the number of times of discharge, thereby realizes showing the gray scale that needs.
Therefore, in order to produce dynamic image, show the high-tension actuate signal of using in the module of high frequency at plasma, can make the Plasmia indicating panel of forming by upper substrate and lower basal plate produce a large amount of heat and noise, also can emit than chromatic cathode tube or the more hertzian wave of display panels simultaneously.
In order to solve described heat radiation, noise reduction, suction ripple problem, prior art is normally directly pasted heat conduction pad or graphite heat-conducting fin by the display panel back.In actual applications, because most of electronic products has all required to inhale ripple, function of shielding, during particularly directly in the face of the user, need the hertzian wave that electrical equipment produces directly be shielded or absorb.Particularly for plasma television, panel produces a large amount of heat in use, and the power supply of back can produce vibrations under high frequency environment, and noise occurs, and problems all have influence on the appreciation effect of user's article on plasma body TV.What present stage, backboard used later is heat conduction pad or graphite flake, and the heat conduction pad is the silica type material, and good damping noise reduction function and heat conduction function are arranged, and graphite sheet has good heat conduction function.Yet also there is open defect in above-mentioned materials, and the effect of heat conduction pad damping noise reduction is fine, but heat-conducting effect is undesirable; Though the graphite sheet heat-conducting effect is fine, the damping noise reduction effect is bad, and these two kinds of materials are not converted into the function that thermal conductance is walked with hertzian wave after not having the ripple of suction.
[summary of the invention]
The present invention is intended to solve the shortcoming of prior art, not only has damping noise reduction and inhales wave energy and provide a kind of, simultaneously can be with the multi-functional heat-conductive composite material that changes into heat energy after the absorption of electromagnetic wave on the display panel and lead away.
For achieving the above object, the invention provides a kind of multi-functional heat-conductive composite material, this matrix material is to be that 10～40 isoprene-isobutylene rubber and 90～60 filler are composited with weight percent content.
In another program of the present invention, this multi-functional heat-conductive composite material is, and to be 10～40 isoprene-isobutylene rubber with weight percent content mix mutually with 90～60 filler, and described mixture coating or calendering is online and form at aluminium foil or aluminium.
Described isoprene-isobutylene rubber is selected from one or both in cis-1,4-polybutadiene rubber, the isobutylene-isoprene copolymer.
Described filler is to be that 60～100 functional stuffing and 40～0 auxiliary packing mix by weight percent content.
Described functional stuffing be by aluminium powder and heat conduction aluminum oxide by 55～90: 45～10 weight percent mixes.
Described aluminum powder particle size is between 200～800 orders, and foreign matter content is lower than 1%.
Described heat conduction aluminum oxide grain size is between 200～1600 orders, and foreign matter content is lower than 0.1%, and water content is lower than 0.5%.
The thickness of described aluminium foil or aluminium net is less than 0.5mm, and the order number of aluminium net mesh is between 200～2000 orders.
Described auxiliary packing is selected from one or more in lime carbonate, white carbon black, fire retardant, the pigment.
Described fire retardant is selected from one or both in aluminium hydroxide, the antimonous oxide, and described pigment is selected from one or more in Pigment black, pigment green grass or young crops, pigment fuchsin, Pigment blue, Pigment red, Pigment Yellow 73, pigment orange, the Pigment green.
Contribution of the present invention is, it efficiently solves heat conduction pad or the existing defective of graphite flake that heat radiation, noise reduction, suction ripple are used.Matrix material of the present invention can directly be close on the display panel, thereby the vibrations that produce on the display panel are eliminated, and noise can be reduced to the degree that the user can not discover.Change into heat energy after the hertzian wave that produces on the display panel is absorbed, and dissipate by the backboard that this matrix material passes to the back.Characteristics such as matrix material of the present invention has material and is easy to get, and manufacture craft is simple, and is easy to implement.
[description of drawings]
Fig. 1 is the matrix material sectional view of embodiments of the invention 2,3.
[embodiment]
The following example is to further explanation of the present invention and explanation, and the present invention is not constituted any limitation.
The white carbon black that takes by weighing carbon black, the 5kg of aluminium hydroxide, the 5kg of cis-1,4-polybutadiene rubber, the 10kg of alumina powder jointed, the 50kg of aluminium powder that weight is 50kg, 30kg places on the Banbury mixer and mixed 30 minutes, and the calendering of blended material is formed multi-functional heat-conductive composite material.
Through measuring, this matrix material thermal conductivity is 1.15W/mK.
Referring to Fig. 1, the white carbon black that takes by weighing carbon black, the 5kg of antimonous oxide, the 5kg of alumina powder jointed, the 15kg of aluminium powder that weight is 60kg, 15kg mixes and forms filler 2, take by weighing 60kg isobutylene-isoprene copolymer 1, with isobutylene-isoprene copolymer 1 and filler 2 place mix 30 minutes on the Banbury mixer after, blended material calendering on the thick aluminium foil 3 of 0.5mm, is formed multi-functional heat-conductive composite material.
Through measuring, this matrix material thermal conductivity is 1.30W/mK.
Embodiment 3
Referring to Fig. 1, the white carbon black that takes by weighing carbon black, the 2kg of antimonous oxide, the 3kg of alumina powder jointed, the 5kg of aluminium powder that weight is 60kg, 30kg mixes and forms filler 2, take by weighing 44kg isobutylene-isoprene copolymer and 22kg cis-1,4-polybutadiene rubber and mix formation mixture 1, with this mixture 1 and filler 2 place mix 30 minutes on the Banbury mixer after, blended material calendering is thick at 0.5mm, 200 purpose aluminium are online, form multi-functional heat-conductive composite material.
Through measuring, this matrix material thermal conductivity is 1.38W/mK.
Claims (10)
1. a multi-functional heat-conductive composite material is characterized in that, this matrix material is to be that 10～40 isoprene-isobutylene rubber and 90～60 filler are composited by weight percent content.
2. a multi-functional heat-conductive composite material is characterized in that, this matrix material is, and to be 10～40 isoprene-isobutylene rubber by weight percent content mix mutually with 90～60 filler, and described mixture coating or calendering is online and form at aluminium foil or aluminium.
3. multi-functional heat-conductive composite material as claimed in claim 1 or 2 is characterized in that, described isoprene-isobutylene rubber is selected from least a in cis-1,4-polybutadiene rubber, the isobutylene-isoprene copolymer.
4. multi-functional heat-conductive composite material as claimed in claim 1 or 2 is characterized in that, described filler is to be that 60～100 functional stuffing and 40～0 auxiliary packing mix by weight percent content.
5. multi-functional heat-conductive composite material as claimed in claim 4 is characterized in that, described functional stuffing be by aluminium powder and heat conduction aluminum oxide by 55～90: 45～10 weight percent mixes.
6. multi-functional heat-conductive composite material as claimed in claim 4 is characterized in that, described auxiliary packing is selected from one or more in lime carbonate, white carbon black, fire retardant, the pigment.
7. multi-functional heat-conductive composite material as claimed in claim 5 is characterized in that described aluminum powder particle size is between 200～800 orders, and foreign matter content is lower than 1%.
8. multi-functional heat-conductive composite material as claimed in claim 5 is characterized in that, described heat conduction aluminum oxide grain size is between 200～1600 orders, and foreign matter content is lower than 0.1%, and water content is lower than 0.5%.
9. multi-functional heat-conductive composite material as claimed in claim 2 is characterized in that, the thickness of described aluminium foil or aluminium net is less than 0.5mm, and the order number of aluminium net mesh is between 200～2000 orders.
10. multi-functional heat-conductive composite material as claimed in claim 6, it is characterized in that, described fire retardant is selected from least a in aluminium hydroxide, the antimonous oxide, and described pigment is selected from one or more in Pigment black, pigment green grass or young crops, pigment fuchsin, Pigment blue, Pigment red, Pigment Yellow 73, pigment orange, the Pigment green.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110135832 CN102250425A (en) | 2011-05-24 | 2011-05-24 | Multifunctional heat-conducting composite material |
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| CN 201110135832 CN102250425A (en) | 2011-05-24 | 2011-05-24 | Multifunctional heat-conducting composite material |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203226A (en) * | 2013-04-28 | 2013-07-17 | 上海大学 | Graphite powder-butyl rubber composite frozen gel oil absorption material and preparation method thereof |
| CN103408939A (en) * | 2013-08-02 | 2013-11-27 | 昆山市中迪新材料技术有限公司 | Insulation pad and preparation method thereof |
| CN105368376A (en) * | 2015-12-22 | 2016-03-02 | 常熟市锐思电子设备有限公司 | Switching power supply for electrical equipment |
| CN105419687A (en) * | 2015-12-22 | 2016-03-23 | 常熟市锐思电子设备有限公司 | Switch power source |
| CN107973943A (en) * | 2017-10-20 | 2018-05-01 | 广东信力科技股份有限公司 | A kind of heat conduction soundproof rubber piece and preparation method thereof |
| CN108307606A (en) * | 2017-12-24 | 2018-07-20 | 湛江正信科技服务有限公司 | A kind of phase change radiator structure and preparation method thereof |
| CN108302973A (en) * | 2017-12-24 | 2018-07-20 | 湛江正信科技服务有限公司 | A kind of fire-retardant phase change radiator structure and preparation method thereof |
| CN110446414A (en) * | 2019-08-12 | 2019-11-12 | 北京理工大学 | Suction wave electromagnetic shielding and vibration absorber for electronic product |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1603382A (en) * | 2003-07-31 | 2005-04-06 | 国家淀粉及化学投资控股公司 | Thermal interface material |
| CN101525531A (en) * | 2008-03-07 | 2009-09-09 | 钟兴业 | High molecular compound heat conducting material |
-
2011
- 2011-05-24 CN CN 201110135832 patent/CN102250425A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1603382A (en) * | 2003-07-31 | 2005-04-06 | 国家淀粉及化学投资控股公司 | Thermal interface material |
| CN101525531A (en) * | 2008-03-07 | 2009-09-09 | 钟兴业 | High molecular compound heat conducting material |
Non-Patent Citations (1)
| Title |
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| 《橡胶材料设计与应用》 20031031 傅政 （三）导热橡胶材料 化学工业出版社 331 1-10 , * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203226A (en) * | 2013-04-28 | 2013-07-17 | 上海大学 | Graphite powder-butyl rubber composite frozen gel oil absorption material and preparation method thereof |
| CN103408939A (en) * | 2013-08-02 | 2013-11-27 | 昆山市中迪新材料技术有限公司 | Insulation pad and preparation method thereof |
| CN105368376A (en) * | 2015-12-22 | 2016-03-02 | 常熟市锐思电子设备有限公司 | Switching power supply for electrical equipment |
| CN105419687A (en) * | 2015-12-22 | 2016-03-23 | 常熟市锐思电子设备有限公司 | Switch power source |
| CN107973943A (en) * | 2017-10-20 | 2018-05-01 | 广东信力科技股份有限公司 | A kind of heat conduction soundproof rubber piece and preparation method thereof |
| CN108307606A (en) * | 2017-12-24 | 2018-07-20 | 湛江正信科技服务有限公司 | A kind of phase change radiator structure and preparation method thereof |
| CN108302973A (en) * | 2017-12-24 | 2018-07-20 | 湛江正信科技服务有限公司 | A kind of fire-retardant phase change radiator structure and preparation method thereof |
| CN110446414A (en) * | 2019-08-12 | 2019-11-12 | 北京理工大学 | Suction wave electromagnetic shielding and vibration absorber for electronic product |
| CN110446414B (en) * | 2019-08-12 | 2020-10-23 | 北京理工大学 | Wave-absorbing electromagnetic shielding and vibration-damping device for electronic product |
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Application publication date: 20111123 |