CN105985621A - PC-PET (polycarbonate and polyethylene terephthalate) based LED radiating material comprising modified mesophase pitch-based carbon fiber and carbon nanotubes and preparation method thereof - Google Patents
PC-PET (polycarbonate and polyethylene terephthalate) based LED radiating material comprising modified mesophase pitch-based carbon fiber and carbon nanotubes and preparation method thereof Download PDFInfo
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- CN105985621A CN105985621A CN201610009116.0A CN201610009116A CN105985621A CN 105985621 A CN105985621 A CN 105985621A CN 201610009116 A CN201610009116 A CN 201610009116A CN 105985621 A CN105985621 A CN 105985621A
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- mesophase pitch
- pet
- based carbon
- composite
- carbon fibers
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- 239000000463 material Substances 0.000 title claims abstract description 32
- 239000011302 mesophase pitch Substances 0.000 title claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 13
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- -1 polyethylene terephthalate Polymers 0.000 title claims abstract description 8
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 7
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract description 4
- 239000004417 polycarbonate Substances 0.000 title abstract 3
- 229920000139 polyethylene terephthalate Polymers 0.000 title abstract 3
- 239000005020 polyethylene terephthalate Substances 0.000 title abstract 3
- 229920000515 polycarbonate Polymers 0.000 title abstract 2
- 239000002131 composite material Substances 0.000 claims abstract description 22
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000004033 plastic Substances 0.000 claims abstract description 10
- 229920003023 plastic Polymers 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 9
- 239000002608 ionic liquid Substances 0.000 claims abstract description 5
- 230000005855 radiation Effects 0.000 claims abstract 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 9
- 229910000077 silane Inorganic materials 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 6
- 238000005469 granulation Methods 0.000 claims description 6
- 230000003179 granulation Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000004611 light stabiliser Substances 0.000 claims description 3
- 239000002048 multi walled nanotube Substances 0.000 claims description 3
- 238000005453 pelletization Methods 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 6
- 230000032683 aging Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000003766 combability Effects 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 239000012994 photoredox catalyst Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- 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
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/206—Applications use in electrical or conductive gadgets use in coating or encapsulating of electronic parts
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses PC-PET (polycarbonate and polyethylene terephthalate) based LED radiating material comprising modified mesophase pitch-based carbon fiber and carbon nanotubes and a preparation method thereof. The composite plastic uses the composite of polymeric materials such as PC and PET as a heat-conductive plastic base material, providing good comprehensive mechanical properties, weatherability, ageing resistance and insulation safety, added spherical alumina ceramic powder effectively improves heat conductivity of the material, ionic liquid modified composite powder of mesophase pitch-based carbon fiber and carbon nanotubes which is mixed herein has reduced surface energy, high heat conductivity and good combability with polymer plastics, an efficient heat-conductive network is formed in the base material, providing good heat transmission and heat radiation as well as toughness improvement and reinforcement, and the radiating material is widely applicable in LED packaging.
Description
Technical field
The present invention relates to heat conduction engineering plastics technical field, particularly relate to a kind of containing modified Mesophase Pitch-based Carbon Fibers-
PC-PET base LED heat sink material of CNT and preparation method thereof.
Background technology
LED, as the novel light source of a generation, has efficiently, energy-saving and environmental protection, length in service life, is easily maintained etc. advantage,
Operating temperature tool by the pre-third generation light source being may replace electric filament lamp and fluorescent lamp, the light extraction efficiency of LED and life-span with chip
Having direct relation, heat dissipation problem is to limit encapsulation LED product to improve power and the subject matter of luminous efficiency, solves LED and dissipates
The effective means of heat problem is exactly to utilize high heat conduction, high insulation, the material of high permeability quickly to be passed by heat.
The heat sink material that LED encapsulation at present is commonly used is mainly metal aluminium or ceramic material, and these materials are in actually used process
In all there are some defects, although such as aluminum base heat sink material has the most excellent heat-sinking capability, but there is moulding process in it
Cycle length, itself there is electric conductivity and the problem such as moulding is single, although and ceramic material insulation, but than great, molding difficulty
Height, is unfavorable for batch production, and its application is also restrained.
Composite heat-conducting plastics the most gradually start to be paid close attention in the industry, and first plastics itself have good insulation, light
The advantages such as matter, inexpensive, various shapes, can obtain more satisfied heat conductivity after adding the filler of high-termal conductivity wherein,
It is lighter than aluminum base heat sink material quality, and molding cycle is shorter, owing to the filler unit price of high-termal conductivity is more expensive, and existing system
The utilization rate that standby technique makes heat filling is low, further increases production cost, therefore, improves existing technique, improves raw material
Utilization rate be the problem that bandit treats result.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of fine containing modified intermediate phase pitch-based charcoal
PC-PET base LED heat sink material of dimension-CNT and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of PC-PET base LED heat sink material containing modified Mesophase Pitch-based Carbon Fibers-CNT, this composite plastic by with
The raw material of lower weight portion is made: PC 40-50, PET 12-15, acrylonitrile-butadiene-styrene (ABS) copolymer-maleic anhydride 4-5,
Ball-aluminium oxide ceramics 20-25, multi-walled carbon nano-tubes 4-6, Mesophase Pitch-based Carbon Fibers 5-8, hexafluorophosphate imidazoles
Ionic liquid 1-1.5, silane coupler 1-2, antioxidant 0.5-0.6, light stabilizer 0.1-0.2, deionized water 30-40.
Described a kind of PC-PET base LED heat sink material containing modified Mesophase Pitch-based Carbon Fibers-CNT and
Preparation method, described preparation method is:
(1) first hexafluorophosphate glyoxaline ion liquid is mixed with deionized water, and oil bath is heated to 50-60 DEG C, permanent subsequently
Temperature stirring mixing 25-30min, then raises temperature to 70-80 DEG C, puts into Mesophase Pitch-based Carbon Fibers, CNT, thermostatic ultrasonic
Stirring 3-4h, gained material is completely dried removing moisture after terminating, i.e. obtains ionic liquid after gained powder body grinding distribution by stirring
Modified Mesophase Pitch-based Carbon Fibers/carbon nano-tube composite powder；
(2) by PC, PET, acrylonitrile-butadiene-styrene (ABS) copolymer-maleic anhydride, ball-aluminium oxide ceramics, antioxidant, light
Put in double screw extruder together after the silane coupler high-speed stirred mix homogeneously of stabilizer and 0.8-1 weight portion and make
Grain, obtains a granulation material standby；
(3) composite granule prepared by step (1) is uniformly mixed standby with the silane coupler of surplus；
(4) granulation material step (2) prepared puts in extruder by main spout, and the composite granule of step (3) leads to
Cross side spout and add in extruder, extruding pelletization, cooling, obtain the composite heat conducting material for injection mo(u)lding.
The invention have the advantage that the present invention is compound as heat-conducting plastic base material using macromolecular materials such as PC, PET, have good
Good comprehensive mechanical property, Weatherproof ageing-resistant, insulation safety, the ball-aluminium oxide ceramics of addition effectively increases leading of material
Hot, and wherein blend through ion liquid modified Mesophase Pitch-based Carbon Fibers, carbon nano-tube composite powder surface energy
It is reduced, possesses high heat conductivility, have the good compatibility with high molecule plastic, base material is formed efficient thermal conductive network
Network, it is thus achieved that good heat transfer, radiating effect, has toughened and reinforced effect concurrently simultaneously, and it is empty that it has wide application in LED encapsulates
Between.
Detailed description of the invention
This composite is made up of the raw material of following weight portion: PC 40, PET 12, acronitrile-butadiene-styrene Malaysia
Acid anhydride copolymer 4, ball-aluminium oxide ceramics 20, multi-walled carbon nano-tubes 4, Mesophase Pitch-based Carbon Fibers 5, hexafluorophosphate miaow
Azole ionic liquid 1, silane coupler 1, antioxidant 0.5, light stabilizer 0.1, deionized water 30.
The preparation method of this composite plastic is:
(1) first being mixed with deionized water by hexafluorophosphate glyoxaline ion liquid, and oil bath is heated to 50 DEG C, constant temperature stirs subsequently
Mix mixing 25min, then raise temperature to 70 DEG C, put into Mesophase Pitch-based Carbon Fibers, CNT, thermostatic ultrasonic stirring 3h, stir
After mixing end, gained material is completely dried removing moisture, after gained powder body grinding distribution, i.e. obtains the drip of ion liquid modified mesophase
Blue or green based carbon fiber/carbon nano-tube composite powder；
(2) by steady to PC, PET, acronitrile-butadiene-styrene copolymer-maleic anhydride, ball-aluminium oxide ceramics, antioxidant, light
Pelletize in double screw extruder is put into together after determining the silane coupler high-speed stirred mix homogeneously of agent and 0.8 weight portion,
Standby to a granulation material；
(3) composite granule prepared by step (1) is uniformly mixed standby with the silane coupler of surplus；
(4) granulation material step (2) prepared puts in extruder by main spout, and the composite granule of step (3) leads to
Cross side spout and add in extruder, extruding pelletization, cooling, obtain the composite heat conducting material for injection mo(u)lding.
The performance test results of the composite heat conducting material obtained by the present embodiment is:
| Project | Index |
| Hot strength (MPa) | 84.3 |
| Bending strength (MPa) | 214.6 |
| Thermal conductivity (w/mk) | 6.14 |
| Flame retardant rating | UL94-V0 |
| Specific insulation (Ω .cm) | ＞ 1013 |
Claims (2)
1. the PC-PET base LED heat sink material containing modified Mesophase Pitch-based Carbon Fibers-CNT, it is characterised in that
This composite plastic is made up of the raw material of following weight portion: PC 40-50, PET 12-15, acrylonitrile-butadiene-styrene (ABS) Malaysia
Acid anhydride copolymer 4-5, ball-aluminium oxide ceramics 20-25, multi-walled carbon nano-tubes 4-6, Mesophase Pitch-based Carbon Fibers 5-8, six
Fluorophosphate glyoxaline ion liquid 1-1.5, silane coupler 1-2, antioxidant 0.5-0.6, light stabilizer 0.1-0.2, go from
Sub-water 30-40.
A kind of PC-PET base LED heat radiation containing modified Mesophase Pitch-based Carbon Fibers-CNT
Material and preparation method thereof, it is characterised in that described preparation method is:
(1) first hexafluorophosphate glyoxaline ion liquid is mixed with deionized water, and oil bath is heated to 50-60 DEG C, permanent subsequently
Temperature stirring mixing 25-30min, then raises temperature to 70-80 DEG C, puts into Mesophase Pitch-based Carbon Fibers, CNT, thermostatic ultrasonic
Stirring 3-4h, gained material is completely dried removing moisture after terminating, i.e. obtains ionic liquid after gained powder body grinding distribution by stirring
Modified Mesophase Pitch-based Carbon Fibers/carbon nano-tube composite powder；
(2) by PC, PET, acrylonitrile-butadiene-styrene (ABS) copolymer-maleic anhydride, ball-aluminium oxide ceramics, antioxidant, light
Put in double screw extruder together after the silane coupler high-speed stirred mix homogeneously of stabilizer and 0.8-1 weight portion and make
Grain, obtains a granulation material standby；
(3) composite granule prepared by step (1) is uniformly mixed standby with the silane coupler of surplus；
(4) granulation material step (2) prepared puts in extruder by main spout, and the composite granule of step (3) leads to
Cross side spout and add in extruder, extruding pelletization, cooling, obtain the composite heat conducting material for injection mo(u)lding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610009116.0A CN105985621A (en) | 2016-01-04 | 2016-01-04 | PC-PET (polycarbonate and polyethylene terephthalate) based LED radiating material comprising modified mesophase pitch-based carbon fiber and carbon nanotubes and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610009116.0A CN105985621A (en) | 2016-01-04 | 2016-01-04 | PC-PET (polycarbonate and polyethylene terephthalate) based LED radiating material comprising modified mesophase pitch-based carbon fiber and carbon nanotubes and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105985621A true CN105985621A (en) | 2016-10-05 |
Family
ID=57039858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610009116.0A Pending CN105985621A (en) | 2016-01-04 | 2016-01-04 | PC-PET (polycarbonate and polyethylene terephthalate) based LED radiating material comprising modified mesophase pitch-based carbon fiber and carbon nanotubes and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105985621A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467902A (en) * | 2018-10-24 | 2019-03-15 | 深圳市富恒新材料股份有限公司 | A kind of PC/ABS electrical conductivity alloy material of enhancing and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585558A (en) * | 2012-01-18 | 2012-07-18 | 大连天宝化学工业有限公司 | Method for preparing high-dispersion high-thermal-conductivity white carbon black by modifying with ionic liquid in supercritical state |
-
2016
- 2016-01-04 CN CN201610009116.0A patent/CN105985621A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585558A (en) * | 2012-01-18 | 2012-07-18 | 大连天宝化学工业有限公司 | Method for preparing high-dispersion high-thermal-conductivity white carbon black by modifying with ionic liquid in supercritical state |
Non-Patent Citations (1)
| Title |
|---|
| 邱志豪等: ""高导热性PC/PET复合材料性质之研究"", 《COLLEGE OF ENGINEERING》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467902A (en) * | 2018-10-24 | 2019-03-15 | 深圳市富恒新材料股份有限公司 | A kind of PC/ABS electrical conductivity alloy material of enhancing and preparation method thereof |
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Application publication date: 20161005 |