CN102220005B - Multifunctional heat-conductive composite material - Google Patents
Multifunctional heat-conductive composite material Download PDFInfo
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- CN102220005B CN102220005B CN201110102850.9A CN201110102850A CN102220005B CN 102220005 B CN102220005 B CN 102220005B CN 201110102850 A CN201110102850 A CN 201110102850A CN 102220005 B CN102220005 B CN 102220005B
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- heat
- composite material
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- multifunctional
- aluminium
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- 239000002131 composite material Substances 0.000 title claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 12
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000004945 silicone rubber Substances 0.000 claims abstract description 7
- 238000003490 calendering Methods 0.000 claims abstract description 4
- 239000011888 foil Substances 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims abstract description 3
- 239000011159 matrix material Substances 0.000 claims description 14
- 239000004411 aluminium Substances 0.000 claims description 12
- -1 trifluoropropyl siloxane Chemical class 0.000 claims description 9
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 6
- 239000005030 aluminium foil Substances 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 5
- 229920002545 silicone oil Polymers 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229910000077 silane Inorganic materials 0.000 claims description 3
- 229920000260 silastic Polymers 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 5
- 238000013016 damping Methods 0.000 abstract description 5
- 239000003054 catalyst Substances 0.000 abstract description 4
- 239000012767 functional filler Substances 0.000 abstract 3
- 229910001586 aluminite Inorganic materials 0.000 abstract 1
- 239000004973 liquid crystal related substance Substances 0.000 abstract 1
- 230000001131 transforming effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000005987 sulfurization reaction Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- LAQFLZHBVPULPL-UHFFFAOYSA-N methyl(phenyl)silicon Chemical compound C[Si]C1=CC=CC=C1 LAQFLZHBVPULPL-UHFFFAOYSA-N 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- NCWQJOGVLLNWEO-UHFFFAOYSA-N methylsilicon Chemical compound [Si]C NCWQJOGVLLNWEO-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
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Abstract
The present invention relates to a multifunctional heat-conductive composite material, which is formed by mixing 10-40wt% of silicone rubber, 0.5-20wt% of a vulcanizing agent, 0-5wt% of a catalyst and 55-89wt% of functional filler; or by mixing 10-40wt% of silicone rubber, 0.5-20wt% of a vulcanizing agent, 0-5wt% of a catalyst and 55-89wt% functional filler, and then coating or calendering the mixture on an aluminum foil or an aluminum mesh, wherein the functional filler is formed by mixing 55-90wt% of aluminite powder with 45-10wt% of heat-conducting alumina; and the aluminum foil or aluminum mesh is less than 0.5 mm in thickness and the size of a mesh of the aluminum mesh is 200-2000 meshes. The multifunctional heat-conductive composite material provided by the invention not only has the functions of damping, noise reducing and wave absorbing, but also is capable of absorbing the electromagnetic wave on a display panel and transforming the electromagnetic wave into heat energy. The composite material provided by the invention is mainly used for the heat conduction of the backboards of large plasma televisions, LCD (liquid crystal display) and other electric appliances.
Description
[technical field]
The present invention relates to thermally conductive material, particularly relate to a kind of can damping noise reduction, absorb the Multifunctional heat-conducting composite material that then hertzian wave that plasm TV display panel produces is converted into heat energy and the heat producing on 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 multiple electrodes, provide discharge gas to produce ultraviolet ray, and the ultraviolet ray excited fluorescent layer forming in predetermined display unit send visible ray, effectively to obtain image.
Plasma shows that module regulates display unit electric discharge to hold time according to video data, i.e. the number of times of sustain discharge, shows thereby realize the gray scale needing.
Therefore, in order to produce dynamic image, at plasma, show the high-tension actuate signal of high frequency of using in module, can make the Plasmia indicating panel being formed by upper substrate and lower basal plate produce a large amount of heat and noise, also can emit than colored 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-conducting pad or graphite heat-conducting fin after display panel.In actual applications, because most of electronic products has all required to inhale ripple, function of shielding, during particularly directly in the face of user, the hertzian wave that need to produce electrical equipment directly shields or absorbs.Particularly, for plasma television, panel produces a large amount of heat in use, and power supply below can produce vibrations under high frequency environment, and occurs noise, and problems all have influence on the appreciation effect of user's plasma TV.What present stage, backboard used below is heat-conducting pad or graphite flake, and heat-conducting pad is silica type material, has good shock-absorbing denoising function and heat conduction function, and graphite sheet has good heat conduction function.But above-mentioned materials also exists open defect, the effect of heat-conducting pad damping noise reduction is fine, but heat-conducting effect is undesirable; Although graphite sheet heat-conducting effect is fine, damping noise reduction effect is bad, and this bi-material is converted into by hertzian wave the function that thermal conductance is walked after not having the ripple of suction.
[summary of the invention]
The present invention is intended to solve the shortcoming of prior art, and provides one not only have damping noise reduction and inhale wave energy, simultaneously can be by the Multifunctional heat-conducting composite material that changes into heat energy after absorption of electromagnetic wave on display panel and lead away.
For achieving the above object, the invention provides a kind of Multifunctional heat-conducting composite material, this matrix material is to be composited by following component by weight percentage:
In another program of the present invention, the silicon rubber that this Multifunctional heat-conducting composite material is is 10～40 by weight percent content, 0.5～20 vulcanizing agent, 0～5 catalyzer mix mutually with 55～89 functional stuffing, and described mixture coating or calendering is online and form at aluminium foil or aluminium.
Described silicon rubber is selected from one or more in firm silicone rubber, liquid silastic, trifluoropropyl siloxane.
Described vulcanizing agent is selected from organo-peroxide, the multifunctional silane compound containing hydrolysable group, one or more of containing hydrogen silicone oil.
Described catalyzer is selected from the one in organic tin catalyzer, platiniferous class catalyzer, titanate ester catalyzer.
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 800～5000 orders, and foreign matter content is lower than 1%.
Described heat conduction aluminum oxide grain size is between 200～5000 orders, and foreign matter content is lower than 0.1%, and water content is lower than 0.5%.
Described aluminum foil thickness is less than 0.5mm.
The thickness of described aluminium net is less than 0.5mm, and the order number of mesh is between 200～2000 orders.
Contribution of the present invention is, it efficiently solves heat-conducting pad or the existing defect of graphite flake that heat radiation, noise reduction, suction ripple are used.Matrix material of the present invention can be directly close on display panel, thereby the vibrations that produce on display panel are eliminated, and noise can be reduced to the degree that user can not discover.After the hertzian wave producing on display panel is absorbed, change into heat energy, and the backboard passing to below by this matrix material dissipates.Matrix material of the present invention has the features such as material is easy to get, and manufacture craft is simple, easy to implement.
[accompanying drawing explanation]
Fig. 1 is the matrix material sectional view of embodiments of the invention 2,3,4.
[embodiment]
The following example is further explanation of the present invention, and the present invention is not constituted any limitation.
Embodiment 1
The methyl silicon resin alumina powder jointed, 30kg that takes aluminium powder that weight is 60kg, 10kg mixes 30 minutes, then in two roller mills, add two two or four vulcanizing agents of 500g to open refining 10 minutes, by this matrix material after being rolled into 1mm thickness, at the temperature of 120 ℃, dry, sulfuration, forms Multifunctional heat-conducting composite material mixture.
Through measuring, this composite mixture thermal conductivity is 1.5W/mK.
Referring to Fig. 1, take the aluminium powder that weight is 60kg, the alumina powder jointed functional stuffing 2 that is mixed to form of 10kg, take 20kg methyl vinyl silicone, 10kg containing hydrogen silicone oil and 0.15kg platinum catalyst and be mixed to form mixture 1, by this mixture 1 and functional stuffing 2 at normal temperatures uniform stirring mix after 40 minutes, the material of mixing is coated on aluminium foil 3, and this aluminium foil can be also aluminium net, then this matrix material is dried at the temperature of 100 ℃, sulfuration, forms Multifunctional heat-conducting composite material.
Through measuring, this matrix material thermal conductivity is 1.67W/mK.
Referring to Fig. 1, take the aluminium powder that weight is 40kg, the alumina powder jointed functional stuffing 2 that is mixed to form of 30kg, take 20kg methyl vinyl silicone, 10kg containing hydrogen silicone oil and 0.15kg platinum catalyst and be mixed to form mixture 1, by this mixture 1 and functional stuffing 2 at normal temperatures uniform stirring mix after 40 minutes, the material of mixing is coated on release film 3, then this matrix material is dried at the temperature of 100 ℃, sulfuration, forms Multifunctional heat-conducting composite material.
Through measuring, this matrix material thermal conductivity is 2.45W/mK.
Embodiment 4
Referring to Fig. 1, take the aluminium powder that weight is 40kg, the alumina powder jointed functional stuffing 2 that is mixed to form of 30kg, take 30kg methyl phenyl silicone rubber 1, methyl phenyl silicone rubber 1 is mixed 30 minutes with functional stuffing 2, then in two roller mills, add two two or four vulcanizing agents of 500g to open refining 10 minutes, the material calendering mixing, on the thick aluminium foil 3 of 0.5mm, is then dried this matrix material at the temperature of 100 ℃, sulfuration, forms Multifunctional heat-conducting composite material.
Through measuring, this matrix material thermal conductivity is 1.8W/mK.
Claims (5)
1. a Multifunctional heat-conducting composite material, is characterized in that, this matrix material is to be composited by following component by weight percentage:
Described silicon rubber is selected from firm silicone rubber, liquid silastic, one or more in trifluoropropyl siloxane, described vulcanizing agent is selected from organo-peroxide, containing the multifunctional silane compound of hydrolysable group, one or more of containing hydrogen silicone oil, described catalyzer is selected from organic tin catalyzer, platiniferous class catalyzer, one in titanate ester catalyzer, described functional stuffing is to be mixed by the weight percent of 55～90:45～10 by aluminium powder and heat conduction aluminum oxide, wherein, described heat conduction aluminum oxide grain size is between 200～5000 orders, foreign matter content is lower than 0.1%, water content is lower than 0.5%.
2. a Multifunctional heat-conducting composite material, it is characterized in that, the silicon rubber that this matrix material is is 10～40 by weight percent content, 0.5～20 vulcanizing agent, 0～5 catalyzer mixes mutually with 55～89 functional stuffing, and described mixture coating or calendering are formed on the net at aluminium foil or aluminium, described silicon rubber is selected from firm silicone rubber, liquid silastic, one or more in trifluoropropyl siloxane, described vulcanizing agent is selected from organo-peroxide, containing the multifunctional silane compound of hydrolysable group, one or more of containing hydrogen silicone oil, described catalyzer is selected from organic tin catalyzer, platiniferous class catalyzer, one in titanate ester catalyzer, described functional stuffing is to be mixed by the weight percent of 55～90:45～10 by aluminium powder and heat conduction aluminum oxide, wherein, described heat conduction aluminum oxide grain size is between 200～5000 orders, foreign matter content is lower than 0.1%, water content is lower than 0.5%.
3. Multifunctional heat-conducting composite material as claimed in claim 1 or 2, is characterized in that, described aluminum powder particle size is between 800～5000 orders, and foreign matter content is lower than 1%.
4. Multifunctional heat-conducting composite material as claimed in claim 2, is characterized in that, described aluminum foil thickness is less than 0.5mm.
5. Multifunctional heat-conducting composite material as claimed in claim 2, is characterized in that, the thickness of described aluminium net is less than 0.5mm, and the order number of mesh is between 200～2000 orders.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110102850.9A CN102220005B (en) | 2011-04-22 | 2011-04-22 | Multifunctional heat-conductive composite material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110102850.9A CN102220005B (en) | 2011-04-22 | 2011-04-22 | Multifunctional heat-conductive composite material |
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| CN102220005A CN102220005A (en) | 2011-10-19 |
| CN102220005B true CN102220005B (en) | 2014-05-07 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104659038A (en) | 2015-03-13 | 2015-05-27 | 京东方科技集团股份有限公司 | Display backboard, method for manufacturing the display backboard, and display device |
| CN104701353A (en) | 2015-03-27 | 2015-06-10 | 京东方科技集团股份有限公司 | Organic light-emitting display panel and display device |
| CN105647191B (en) * | 2016-04-01 | 2018-11-13 | 平湖阿莱德实业有限公司 | It is a kind of that there is the flexible heat-conducting interface material and preparation method thereof for inhaling wave energy |
| CN106867121A (en) * | 2017-03-21 | 2017-06-20 | 国家电网公司 | A kind of outside-cover-type transformer noise reduction stops the material that shakes |
| CN109971179A (en) * | 2017-12-27 | 2019-07-05 | 埃肯有机硅（上海）有限公司 | Heat-conductive composite material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831181A (en) * | 2010-05-21 | 2010-09-15 | 浙江三元电子科技有限公司 | Addition thermal conductive insulation silicon rubber composite material and preparation method thereof |
| CN101831180A (en) * | 2010-05-21 | 2010-09-15 | 浙江三元电子科技有限公司 | Preparation method of heat-conducting insulating silicon rubber composite sheet |
| CN101985519A (en) * | 2010-11-03 | 2011-03-16 | 烟台德邦电子材料有限公司 | Moulded-in-place high molecular thermal conductive composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005268405A (en) * | 2004-03-17 | 2005-09-29 | Dow Corning Toray Co Ltd | Metal base circuit board for optical device and manufacturing method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831181A (en) * | 2010-05-21 | 2010-09-15 | 浙江三元电子科技有限公司 | Addition thermal conductive insulation silicon rubber composite material and preparation method thereof |
| CN101831180A (en) * | 2010-05-21 | 2010-09-15 | 浙江三元电子科技有限公司 | Preparation method of heat-conducting insulating silicon rubber composite sheet |
| CN101985519A (en) * | 2010-11-03 | 2011-03-16 | 烟台德邦电子材料有限公司 | Moulded-in-place high molecular thermal conductive composite material and preparation method thereof |
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