CN105255170A - Nanometer titanium nitride-flake graphite filling-modified PA6/ABS composite thermal conductive plastic for LEDs and preparation method thereof - Google Patents
Nanometer titanium nitride-flake graphite filling-modified PA6/ABS composite thermal conductive plastic for LEDs and preparation method thereof Download PDFInfo
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- CN105255170A CN105255170A CN201510589141.6A CN201510589141A CN105255170A CN 105255170 A CN105255170 A CN 105255170A CN 201510589141 A CN201510589141 A CN 201510589141A CN 105255170 A CN105255170 A CN 105255170A
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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
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
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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
- D01F6/56—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 cyclic compounds with one carbon-to-carbon double bond in the side chain
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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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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 titanium nitride-flake 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; and after filling modification by flake graphite and nanometer titanium nitride, the PA6 and ABS plastics have better thermal conductivity, and composite short fibers with high thermal conductivity prepared from the composite materials through melt spinning 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, resistance to UV ageing and durability, is rarely prone to yellowing and embrittlement, 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, particularly relate to filling-modified PA6/ABS composite heat-conducting plastics of a kind of LED Nano titanium nitride-crystalline flake graphite 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 titanium nitride-crystalline flake graphite filling-modified and preparation method thereof.
The present invention is achieved by the following technical solutions:
The PA6/ABS composite heat-conducting plastics that a kind of LED Nano titanium nitride-crystalline flake graphite is filling-modified, 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 20-25, polyethylene maleic anhydride multipolymer 5-8, Nano titanium nitride 20-24, crystalline flake graphite 12-14, triphenyl phosphite 0.2-0.3, antioxidant 1010 0.1-0.2, silane coupling agent 1-2, Zinic stearas 1-1.5.
The preparation method of the PA6/ABS composite heat-conducting plastics that described a kind of LED Nano titanium nitride-crystalline flake graphite is filling-modified is:
(1) PA6-Nano titanium nitride conjugated fibre is prepared: be first uniformly mixed by the silane coupling agent of Nano titanium nitride 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-crystalline flake graphite conjugated fibre is prepared: first mixed by the silane coupling agent of crystalline flake graphite 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 crystalline flake graphite and the filling-modified ABS of Nano titanium nitride, PA6 wire-conducting performance improves, and matrix material through the conjugated fibre that the technique of melt-spinning has made high heat conduction disperse to combine in later stage mixing process more even, uniform and stable heat trnasfer 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, and material ultraviolet resistance is aging, not easily jaundice becomes fragile, durable in use, 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 25, polyethylene maleic anhydride multipolymer 6, Nano titanium nitride 22, crystalline flake graphite 13, triphenyl phosphite 0.3, antioxidant 1010 0.1, silane coupling agent 1.5, Zinic stearas 1.2.
The preparation method of the PA6/ABS composite heat-conducting plastics that described a kind of LED Nano titanium nitride-crystalline flake graphite is filling-modified is:
(1) PA6-Nano titanium nitride conjugated fibre is prepared: be first uniformly mixed by the silane coupling agent of Nano titanium nitride and 0.8 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 40 μm is for subsequent use;
(2) ABS-crystalline flake graphite conjugated fibre is prepared: first mixed by the silane coupling agent of crystalline flake graphite 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 30mm, diameter is that the composite short fiber of 25 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 245 DEG C of condition blended banburying 1.5h 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) | 32.5 |
| Flexural strength (MPa) | 857 |
| Thermal conductivity (w/mk) | 16.5 |
| Flame retardant rating | UL94-V0 |
| Volume specific resistance (10 21Ω.cm） | 4.3 |
Claims (2)
1. the PA6/ABS composite heat-conducting plastics that LED Nano titanium nitride-crystalline flake graphite is filling-modified, 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 20-25, polyethylene maleic anhydride multipolymer 5-8, Nano titanium nitride 20-24, crystalline flake graphite 12-14, triphenyl phosphite 0.2-0.3, antioxidant 1010 0.1-0.2, silane coupling agent 1-2, Zinic stearas 1-1.5.
2. PA6/ABS composite heat-conducting plastics that a kind of LED Nano titanium nitride-crystalline flake graphite as claimed in claim 1 is filling-modified and preparation method thereof, its spy is, described preparation method is:
(1) PA6-Nano titanium nitride conjugated fibre is prepared: be first uniformly mixed by the silane coupling agent of Nano titanium nitride 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-crystalline flake graphite conjugated fibre is prepared: first mixed by the silane coupling agent of crystalline flake graphite 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 |
|---|---|---|---|
| CN201510589141.6A CN105255170A (en) | 2015-09-16 | 2015-09-16 | Nanometer titanium nitride-flake graphite filling-modified PA6/ABS composite thermal conductive plastic for LEDs and preparation method thereof |
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| CN201510589141.6A CN105255170A (en) | 2015-09-16 | 2015-09-16 | Nanometer titanium nitride-flake graphite filling-modified PA6/ABS composite thermal conductive plastic for LEDs and preparation method thereof |
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| CN105255170A true CN105255170A (en) | 2016-01-20 |
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| CN201510589141.6A Pending CN105255170A (en) | 2015-09-16 | 2015-09-16 | Nanometer titanium nitride-flake graphite filling-modified PA6/ABS composite thermal conductive plastic for LEDs and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109233185A (en) * | 2018-08-20 | 2019-01-18 | 惠州市沃特新材料有限公司 | PA/ABS composite material and preparation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093691A (en) * | 2011-01-06 | 2011-06-15 | 黄柱联 | Heat-dissipation graphite powder mixed plastic material |
| 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 |
| CN103827188A (en) * | 2011-09-27 | 2014-05-28 | 罗地亚运作公司 | Polyamide composition having high thermal conductivity |
| CN104387757A (en) * | 2014-11-21 | 2015-03-04 | 厦门烯成科技有限公司 | Graphene composite thermal conductive plastic and preparation method thereof |
-
2015
- 2015-09-16 CN CN201510589141.6A patent/CN105255170A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093691A (en) * | 2011-01-06 | 2011-06-15 | 黄柱联 | Heat-dissipation graphite powder mixed plastic material |
| CN103827188A (en) * | 2011-09-27 | 2014-05-28 | 罗地亚运作公司 | Polyamide composition having high thermal conductivity |
| 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 |
| CN104387757A (en) * | 2014-11-21 | 2015-03-04 | 厦门烯成科技有限公司 | Graphene composite thermal conductive plastic and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109233185A (en) * | 2018-08-20 | 2019-01-18 | 惠州市沃特新材料有限公司 | PA/ABS composite material and preparation method |
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Application publication date: 20160120 |