CN105255167A - Nanometer aluminum nitride-colloidal graphite filling-modified PA6/ABS composite thermal conductive plastic for LEDs and preparation method thereof - Google Patents
Nanometer aluminum nitride-colloidal graphite filling-modified PA6/ABS composite thermal conductive plastic for LEDs and preparation method thereof Download PDFInfo
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- CN105255167A CN105255167A CN201510589137.XA CN201510589137A CN105255167A CN 105255167 A CN105255167 A CN 105255167A CN 201510589137 A CN201510589137 A CN 201510589137A CN 105255167 A CN105255167 A CN 105255167A
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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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/54—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated nitriles
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
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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
- C08K2201/011—Nanostructured additives
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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
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Abstract
The invention discloses a nanometer aluminum nitride-colloidal graphite filling-modified PA6/ABS composite thermal conductive plastic for LEDs and a preparation method thereof. The thermal conductive plastic employs a mixture of PA6 and ABS plastics and has excellent plasticity, durability and electric insulation performance; after filling modification by nanometer aluminum nitride, nanometer cerium dioxide and colloidal graphite, the plastics undergo melt spinning so as to prepare composite short fibers with high thermal conductivity; and conductive filling materials in the obtained composite short fibers are uniformly dispersed and the composite short fibers are more uniformly dispersed and bonded in later mixing and can form a uniform and stable heat transfer network, so the phenomenon of nonuniform heat transfer of plastics in traditional production methods can be improved and the utilization rate of the thermal conductive filling materials can be enhanced. Test results show that the composite thermal conductive plastic has excellent thermal conductivity, safety, antistatic performance, toughness and durability and can be widely used in the field of heat dissipation of the LEDs.
Description
Technical field
The present invention relates to heat-conducting plastic preparing technical field, PA6/ABS composite heat-conducting plastics particularly relating to a kind of LED nano aluminum nitride-filled with colloid graphite modification and preparation method thereof.
Background technology
LED is as the novel light source of a generation, and the working temperature of its light extraction efficiency and life-span and chip has direct relation, and heat dissipation problem is always the focus paid close attention to.No matter LED chip encapsulates or Design of Luminaires application, often need to discharge by thermally conductive material the heat that LED produces, cost for dispelling the heat also occupies the proportion of system cost about 20% ~ 30%, and the Cooling Solution seeking high performance-price ratio also becomes the target of dealer's pursuit always.
At present in LED illumination light source and light fixture are produced, main employing metal aluminium or stupalith are as heat conduction and heat radiation system, but, all there are some defects in actual use in these materials, although such as aluminium base heat sink material has comparatively excellent heat-sinking capability, its exist the moulding process cycle long, itself there is electroconductibility and the problem such as moulding is single, and although stupalith insulate, but higher than great, shaping difficulty, be unfavorable for batch production, its application is also restricted.
Organic heat-conducting plastic starts to be paid close attention in the industry in recent years gradually, first plastics itself have the advantages such as good insulation, lightweight, inexpensive, various shapes, production for LED illumination product provides a kind of new thinking and solution, the difficult point of heat-conducting plastic is to improve its thermal conductivity, traditional production method mainly by the plastic directly the blended banburying of blending height heat conductive filler extrude and obtain, this method produces the problem that the heat conduction of heat-conducting plastic ubiquity is uneven, filler utilization ratio is low obtained, and its comprehensive heat conduction and heat radiation effect is still to be modified.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, PA6/ABS composite heat-conducting plastics providing a kind of LED nano aluminum nitride-filled with colloid graphite modification and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of PA6/ABS composite heat-conducting plastics of LED nano aluminum nitride-filled with colloid graphite modification, it is characterized in that, this composite plastic is made up of the raw material of following weight part: PA6 master batch 50-60, ABS masterbatch 22-25, polyethylene maleic anhydride multipolymer 8-10, triphenyl phosphite 0.2-0.3, antioxidant 1010 0.1-0.2, dibenzyl toluene 0.3-0.5, nano-cerium oxide 0.3-0.5, nano aluminum nitride 22-26, oildag powder 10-13, silane coupling agent 1-2, Zinic stearas 1-1.5.
The preparation method of the PA6/ABS composite heat-conducting plastics of described a kind of LED nano aluminum nitride-filled with colloid graphite modification is:
(1) PA6-nano aluminum nitride conjugated fibre is prepared: be first uniformly mixed by the silane coupling agent of nano aluminum nitride, nano-cerium oxide and 0.8-1 weight part, subsequently itself and PA6 master batch are uniformly mixed, through melt-spinning technology, gained compound makes that length is 10-15mm, diameter is that the composite short fiber of 40-60 μm is for subsequent use;
(2) ABS-oildag powder conjugated fibre is prepared: first mixed by the silane coupling agent of oildag powder with residuals weight part, subsequently itself and ABS masterbatch mix and blend are uniformly dispersed, through melt-spinning technology, gained material makes that length is 20-30mm, diameter is that the composite short fiber of 20-30 μm is for subsequent use;
(3) step (1) and (2) gained composite short fiber and other leftover materials are mixed in rear input Banbury mixer, in 240-250 DEG C of condition blended banburying 1-2h discharging, obtain described composite heat-conducting plastics.
Beneficial effect: the present invention is used in combination by PA6 and ABS, the matrix material of gained combines both advantages, there is good mechanical property, it is in plasticity-, weather resistance, the performance of electric insulating quality aspect is excellent, through nano aluminum nitride, nano ceric oxide, plastics after oildag the is powder filled modified composite short fiber of high heat conduction that utilized the technique of melt-spinning to make, in these conjugated fibres, heat conductive filler is uniformly dispersed, what in later stage mixing process, dispersion combined is more even, uniform and stable heat conduction network can be formed, significantly can improve the phenomenon of the plastics heat conduction inequality that conventional production methods is brought, improve heat conductive filler utilization ratio, test result shows that this composite heat-conducting plastics have excellent heat-conducting effect, safety is antistatic, tough durable, LED field of radiating can be widely used in.
Embodiment
Embodiment
The composite plastic of this embodiment is prepared by the raw material of following weight part: PA6 master batch 55, ABS masterbatch 24, polyethylene maleic anhydride copolymer 10, triphenyl phosphite 0.2, antioxidant 1010 0.1, dibenzyl toluene 0.4, nano-cerium oxide 0.4, nano aluminum nitride 25, oildag powder 12, silane coupling agent 1.5, Zinic stearas 1.2.
The preparation method of the PA6/ABS composite heat-conducting plastics of described a kind of LED nano aluminum nitride-filled with colloid graphite modification is:
(1) PA6-nano aluminum nitride conjugated fibre is prepared: be first uniformly mixed by the silane coupling agent of nano aluminum nitride, nano-cerium oxide and 1 weight part, subsequently itself and PA6 master batch are uniformly mixed, through melt-spinning technology, gained compound makes that length is 15mm, diameter is that the composite short fiber of 50 μm is for subsequent use;
(2) ABS-oildag powder conjugated fibre is prepared: first mixed by the silane coupling agent of oildag powder with residuals weight part, subsequently itself and ABS masterbatch mix and blend are uniformly dispersed, through melt-spinning technology, gained material makes that length is 25mm, diameter is that the composite short fiber of 30 μm is for subsequent use;
(3) step (1) and (2) gained composite short fiber and other leftover materials are mixed in rear input Banbury mixer, in 250 DEG C of condition blended banburying 1h discharging, obtain described composite heat-conducting plastics.
The performance test results of the composite heat-conducting plastics obtained by the present embodiment is:
| Project | Index |
| Resistance to impact shock (KJ/m 2) | 33.2 |
| Flexural strength (MPa) | 845 |
| Thermal conductivity (w/mk) | 17.4 |
| Flame retardant rating | UL94-V0 |
| Volume specific resistance (10 21Ω.cm） | 4.3 |
Claims (2)
1. the PA6/ABS composite heat-conducting plastics of LED nano aluminum nitride-filled with colloid graphite modification, it is characterized in that, this composite plastic is made up of the raw material of following weight part: PA6 master batch 50-60, ABS masterbatch 22-25, polyethylene maleic anhydride multipolymer 8-10, triphenyl phosphite 0.2-0.3, antioxidant 1010 0.1-0.2, dibenzyl toluene 0.3-0.5, nano-cerium oxide 0.3-0.5, nano aluminum nitride 22-26, oildag powder 10-13, silane coupling agent 1-2, Zinic stearas 1-1.5.
2. the PA6/ABS composite heat-conducting plastics and preparation method thereof of a kind of LED nano aluminum nitride-filled with colloid graphite modification as claimed in claim 1, its spy is, described preparation method is:
(1) PA6-nano aluminum nitride conjugated fibre is prepared: be first uniformly mixed by the silane coupling agent of nano aluminum nitride, nano-cerium oxide and 0.8-1 weight part, subsequently itself and PA6 master batch are uniformly mixed, through melt-spinning technology, gained compound makes that length is 10-15mm, diameter is that the composite short fiber of 40-60 μm is for subsequent use;
(2) ABS-oildag powder conjugated fibre is prepared: first mixed by the silane coupling agent of oildag powder with residuals weight part, subsequently itself and ABS masterbatch mix and blend are uniformly dispersed, through melt-spinning technology, gained material makes that length is 20-30mm, diameter is that the composite short fiber of 20-30 μm is for subsequent use;
(3) step (1) and (2) gained composite short fiber and other leftover materials are mixed in rear input Banbury mixer, in 240-250 DEG C of condition blended banburying 1-2h discharging, obtain described composite heat-conducting plastics.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510589137.XA CN105255167A (en) | 2015-09-16 | 2015-09-16 | Nanometer aluminum nitride-colloidal graphite filling-modified PA6/ABS composite thermal conductive plastic for LEDs and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510589137.XA CN105255167A (en) | 2015-09-16 | 2015-09-16 | Nanometer aluminum nitride-colloidal graphite filling-modified PA6/ABS composite thermal conductive plastic for LEDs and preparation method thereof |
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| CN105255167A true CN105255167A (en) | 2016-01-20 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102549045A (en) * | 2009-09-30 | 2012-07-04 | 罗地亚经营管理公司 | High-flow polyamides |
| CN102604219A (en) * | 2012-03-12 | 2012-07-25 | 东莞市兆科电子材料科技有限公司 | Preparation method of high-heat-conduction thermal-plasticizing inorganic substance composition and heat-dissipation part manufactured by method |
| CN104292817A (en) * | 2014-01-08 | 2015-01-21 | 上海智高贸易有限公司 | Continuous fiber composite high thermal conductive material and processing technology thereof |
-
2015
- 2015-09-16 CN CN201510589137.XA patent/CN105255167A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102549045A (en) * | 2009-09-30 | 2012-07-04 | 罗地亚经营管理公司 | High-flow polyamides |
| CN102604219A (en) * | 2012-03-12 | 2012-07-25 | 东莞市兆科电子材料科技有限公司 | Preparation method of high-heat-conduction thermal-plasticizing inorganic substance composition and heat-dissipation part manufactured by method |
| CN104292817A (en) * | 2014-01-08 | 2015-01-21 | 上海智高贸易有限公司 | Continuous fiber composite high thermal conductive material and processing technology thereof |
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Application publication date: 20160120 |
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