CN107603128B - A kind of nonmetallic composite Nano heat sink material and preparation method thereof - Google Patents
A kind of nonmetallic composite Nano heat sink material and preparation method thereof Download PDFInfo
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- CN107603128B CN107603128B CN201710739694.4A CN201710739694A CN107603128B CN 107603128 B CN107603128 B CN 107603128B CN 201710739694 A CN201710739694 A CN 201710739694A CN 107603128 B CN107603128 B CN 107603128B
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- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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- 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
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- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
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Abstract
The invention discloses a kind of nonmetallic composite Nano heat sink materials and preparation method thereof, and heat sink material includes following raw material: graphite powder, phenolic resin, PHB, aquadag, carbon fiber, forsterite powder, rare earth, glass fiber powder, alumina powder, carbon nanotube；Preparation method includes: to weigh, prepare raw material A, prepare raw material B, prepare raw material C, prepare heat sink material.The general reasonable compatibility of material of the invention and preparation process, finished product are fully able to substitute aluminium, copper radiator structure part and the ordinary construction part of the use of the industries such as existing automobile, LED lamp industry, general lighting, computer, electromechanics by test, and this material has low-density, good weatherability, fire-protection rating height, good heat dissipation effect, intensity is high, environmental protection, at low cost, it is easily molded, the advantages that later period surface treatment is few, simple process, can be widely used in various electronic radiation conduction industries.
Description
Technical field
The invention belongs to field of nanometer technology, and in particular to a kind of nonmetallic composite Nano heat sink material and its preparation side
Method.
Background technique
As microelectric technique is miniaturized, highly integrated trend, the core devices such as chip and sensor running frequency and
Consumption power sharply increases, and generates amount of heat.In addition, some power device power are continuously improved, package cooling requires more next
It is higher.In the field of photoelectric devices such as LED and laser, heat conduction and heat radiation is bad, will lead to device junction temperature raising, to influence efficiency
And the service life.Since product energy storage is high in consumption electronic product (battery, mobile phone etc.), calorific value is big, if heat cannot be timely
It conducts, accumulation the effect of causing hot localised points, leading to product is unstable or even damage, in turn results in the mistake of electronic product
The problems such as effect, reduced service life.Engine, brake block, tire in automobile, aerospace industry etc. are also to thermally conductive, heat dissipation
There is very high requirement.
In order to improve heat transfer and the heat dissipation performance of electronic component, the heat dissipation of the components such as especially CPU is adopted mostly at present
It being radiated with materials such as aluminium, copper to electronic apparatus, in aluminium, the production of Copper Processing Industry metaplasia, but energy consumption involved in the method is very high,
Complex technical process；There are more serious pollutions for production process；Post-processing procedure is more, and entire production cost is higher, and valence
Lattice wave moves larger.In addition to this, the thermally conductive compound of organic/inorganic is often used at present to realize between electronic component and radiating subassembly
Void-free contact.Realize it is heat-conducting silicone grease or thermally conductive non-silicon composition etc., this kind of composition as this technical solution typical case
Mainly using polysiloxanes or other organic principles as body, a certain amount of heat filling mixing is added, is prepared with thermally conductive
The composite material of performance.But such method is although doping metals powder, although improving the thermally conductive of the thermally conductive compound of organic/inorganic
Efficiency, but find that the heating conduction of product is still influenced by heat filling content in practical applications.Although high filler content mentions
The high heating conduction of product, but will lead to the raising of product cost, and heat filling in complex systems can also be caused to contain
Measure the excessively high defect for influencing contact area and heat-sinking capability.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology, provides a kind of nonmetallic composite Nano heat sink material, should
Material is nonmetallic composite nano materials, reaches the requirement of substitution aluminium, copper material radiator, in weatherability and recoverable version
Better than aluminium, copper material；
Another object of the present invention is to provide the preparation method of such nonmetallic composite Nano heat sink material, this method behaviour
Work is simple, preparation is convenient, is suitable for industrialization large-scale production.
The purpose of the present invention is achieved through the following technical solutions: a kind of nonmetallic composite Nano heat sink material, it includes
The raw material of following parts by weight:
Further, it includes the raw material of following parts by weight:
Preferably, it includes the raw material of following parts by weight:
Further, the thermal coefficient of the nonmetallic composite Nano heat sink material is 95-1200W/ (mK), and density is
1.5×103~1.8 × 103kg/m3。
Heretofore described PHB is poly.
A kind of preparation method of nonmetallic composite Nano heat sink material, it the following steps are included:
S1. it weighs: weighing each raw material by above-mentioned formula rate, it is spare；
S2. it prepares raw material A: graphite powder, carbon nanotube, carbon fiber and aquadag is subjected to physical mixed, until mixing
Uniformity of dosage units >=95 of object, as raw material A；
S3. it prepares raw material B: phenolic resin and PHB being subjected to physical mixed, mixes to uniformity of dosage units >=95, obtains former
Material B；
S4. it prepares raw material C: being carried out forsterite powder, rare earth, glass fiber powder and aluminium oxide are added in raw material B
Physical mixed is mixed to uniformity of dosage units >=95, obtains raw material C；
S5. it prepares heat sink material: raw material A and raw material C being subjected to physical mixed, is mixed to uniformity of dosage units >=95,
Nonmetallic composite Nano heat sink material is made.
Further, the physical mixed is mixed using blender.
Further, the revolving speed of the blender is 80~600rpm.
Material of the invention makes mold according to shape of product, is processed using common vertical hydraulic press, processing method
Are as follows: mold cavity, molding pressure maintaining, die sinking ejection, deburring and packaging is added in material metering.The overlap of product in process
It is smashed and ground after can be recycled with bad finished product by pulverizer, proportionally substitutes graphite powder and enter secondary raw material production.
The invention has the following advantages that
Material of the invention in natural mineral graphite powder by adding carbon nanotube, phenolic resin, forsterite powder, oxygen
Change materials, general reasonable compatibility and the preparation processes such as aluminium powder, aquadag, carbon fiber, glass fiber powder, rare earth, PHB, at
The thermal coefficient of product is 95-1200W/ (mK), and density is 1.5 × 103~1.8 × 103kg/m3, and met according to different formulations
Various field of radiating demands, reach substitution aluminium, copper material radiator requirement, be superior in weatherability and recoverable version aluminium,
Copper material；This material is fully able to substitute existing automobile, LED lamp industry, general lighting, computer, machine by finished product test
Aluminium, copper radiator structure part and the ordinary construction part that the industries such as electricity use, and this material has low-density, good weatherability, fire prevention etc.
The advantages that grade is high, good heat dissipation effect, and intensity is high, and environmental protection is at low cost, easily molded, and later period surface treatment is few, simple process, can
It is widely used in various electronic radiation conduction industries.
Specific embodiment
Below with reference to embodiment, the present invention will be further described, and protection scope of the present invention is not limited to following institute
It states:
Embodiment 1: a kind of nonmetallic composite Nano heat sink material, it includes the raw material of following parts by weight:
Embodiment 2: a kind of nonmetallic composite Nano heat sink material, it includes the raw material of following parts by weight:
Embodiment 3: a kind of nonmetallic composite Nano heat sink material, it includes the raw material of following parts by weight:
Embodiment 4: a kind of nonmetallic composite Nano heat sink material, it includes the raw material of following parts by weight:
Embodiment 5: a kind of nonmetallic composite Nano heat sink material, it includes the raw material of following parts by weight:
Embodiment 6: the preparation method of above-mentioned nonmetallic composite Nano heat sink material, it the following steps are included:
S1. it weighs: weighing each raw material by above-mentioned formula rate, it is spare；
S2. it prepares raw material A: graphite powder, carbon nanotube, carbon fiber and aquadag is subjected to physical mixed, the object
Reason mixing is mixed using blender, and the revolving speed of blender is 80~600rpm, until uniformity of dosage units >=95 of mixture, i.e.,
For raw material A；
S3. it prepares raw material B: phenolic resin and PHB being subjected to physical mixed, mixes to uniformity of dosage units >=95, obtains former
Material B；
S4. it prepares raw material C: being carried out forsterite powder, rare earth, glass fiber powder and aluminium oxide are added in raw material B
Physical mixed is mixed to uniformity of dosage units >=95, obtains raw material C；The physical mixed is mixed using blender, blender
Revolving speed be 80~600rpm；
S5. it prepares heat sink material: raw material A and raw material C being subjected to physical mixed, the physical mixed uses blender
It is mixed, the revolving speed of blender is 80~600rpm, is mixed to uniformity of dosage units >=95, and nonmetallic composite Nano heat dissipation is made
Material.
Below by way of description of test beneficial effects of the present invention:
Material of the invention makes mold according to shape of product, is processed using common vertical hydraulic press, processing method
Are as follows: mold cavity, molding heating pressure maintaining, die sinking ejection, deburring and packaging is added in material metering.And the performance of product is carried out
Following test:
1. fire-protection rating
Test item: vertical combustion
Test method: UL 94-2013Rev.6-2016 Section 8
Test condition: sample 127mm × 12.5mm × 2.4mm
Test result: as shown in table 1:
Table 1: fire-protection rating test result
Note: the decision condition of V-0 are as follows: individual sample residual flame time, t1 or t2≤10s；Any status adjustment, when total residual flame
Between (t1+t2 of 5 samples)≤50s；Second apply the individual sample residual flame time after flame add the sunset glow time (t2+t3)≤
30s；Whether any sample residual flame or twilight sunset spread to fixture: no；Whether burning particles or low object ignite absorbent cotton: no.
2. weatherability: real including chemical-resistant reagent, light aging test-ultraviolet radioactive exposure, load deformation temperature and specific gravity
Test that the results are shown in Table 2:
Table 2: atmospheric exposure test result
Note: qualified: to reach requirement；It is unqualified: not up to require；/: it is not lower to determine.
3. temperature rise is tested: as shown in table 3:
Table 3: temperature rise test experiments result
Note: single group average value, double cell means are the data from 14:00-17:00, and the temperature rise on graphene radiator is about
44.5 DEG C, about 36.5 DEG C of the heating of radiating fin, about 8.9 DEG C of the temperature gap between aluminium base plate surface and radiator.
4.ROHS
Remarks: (1) 1mg/kg=0.0001%
(2) MDL=method detection limit
(3) (< MDL) is not detected in ND=
(4) "-"=do not provide
Test method: (1) referring to IEC 62321-5:2013, with the content of ICP-OES measurement cadmium
(2) IEC 62321-5:2013 is referred to, with the content of ICP-OES measurement lead
(3) IEC 62321-4:2013 is referred to, with the content of ICP-OES measurement tribute
(4) IEC 62321:2008 is referred to, with the content of ultraviolet-visible spectrophotometer colorimetric method for determining Cr VI.
(5) IEC 62321-6:2015 is referred to, with GC-MS measurement PBBs (polybrominated biphenyls) and PBDEs (polybrominated diphenyl ethers)
Content.
Experimental result: as shown in table 4.
Table 4:ROHS experimental result
| Test item | Limit value | Unit | MDL | 001 |
| Cadmium | 100 | mg/kg | 2 | ND |
| Lead | 1,000 | mg/kg | 2 | ND |
| Mercury | 1,000 | mg/kg | 2 | ND |
| Cr VI | 1,000 | mg/kg | 2 | ND |
| The sum of polybrominated biphenyls | 1,000 | mg/kg | - | ND |
| One bromo biphenyl | - | mg/kg | 5 | ND |
| '-dibromobiphenyl | - | mg/kg | 5 | ND |
| Three bromo biphenyls | - | mg/kg | 5 | ND |
| Four bromo biphenyls | - | mg/kg | 5 | ND |
| Five bromo biphenyls | - | mg/kg | 5 | ND |
| Hexabromobiphenyl | - | mg/kg | 5 | ND |
| Seven bromo biphenyls | - | mg/kg | 5 | ND |
| Octabromo-diphenyl | - | mg/kg | 5 | ND |
| Nine bromo biphenyls | - | mg/kg | 5 | ND |
| Decabromodiphenyl | - | mg/kg | 5 | ND |
| The sum of polybrominated diphenyl ethers | 1,000 | mg/kg | - | ND |
| One dibromodiphenyl ether | - | mg/kg | 5 | ND |
| Dibromodiphenyl ether | - | mg/kg | 5 | ND |
| Three dibromodiphenyl ethers | - | mg/kg | 5 | ND |
| Tetrabromodiphenyl ether | - | mg/kg | 5 | ND |
| Penta-BDE | - | mg/kg | 5 | ND |
| Hexabromo diphenyl ether | - | mg/kg | 5 | ND |
| Seven dibromodiphenyl ethers | - | mg/kg | 5 | ND |
| Octabromodiphenyl ether | - | mg/kg | 5 | ND |
| Nine dibromodiphenyl ethers | - | mg/kg | 5 | ND |
| Deca-BDE | - | mg/kg | 5 | ND |
Claims (7)
1. a kind of nonmetallic composite Nano heat sink material, which is characterized in that it includes the raw material of following parts by weight:
2. a kind of nonmetallic composite Nano heat sink material as described in claim 1, which is characterized in that it includes following parts by weight
Raw material:
3. a kind of nonmetallic composite Nano heat sink material as described in claim 1, which is characterized in that it includes following parts by weight
Raw material:
4. a kind of nonmetallic composite Nano heat sink material as described in claims 1 or 2 or 3, which is characterized in that described nonmetallic
The thermal coefficient of composite Nano heat sink material is 95-1200W/ (mK), and density is 1.5 × 103~1.8 × 103kg/m3。
5. a kind of preparation method of nonmetallic composite Nano heat sink material as described in claims 1 or 2 or 3, which is characterized in that
It the following steps are included:
S1. it weighs: weighing each raw material by above-mentioned formula rate, it is spare；
S2. it prepares raw material A: graphite powder, carbon nanotube, carbon fiber and aquadag is subjected to physical mixed, until mixture
Uniformity of dosage units >=95, as raw material A；
S3. it prepares raw material B: phenolic resin and PHB being subjected to physical mixed, mixes to uniformity of dosage units >=95, obtains raw material
B；
S4. it prepares raw material C: carrying out physics for forsterite powder, rare earth, glass fiber powder and aluminium oxide are added in raw material B
Mixing, mixes to uniformity of dosage units >=95, obtains raw material C；
S5. it prepares heat sink material: raw material A and raw material C being subjected to physical mixed, is mixed to uniformity of dosage units >=95, is made
Nonmetallic composite Nano heat sink material.
6. a kind of preparation method of nonmetallic composite Nano heat sink material as claimed in claim 5, which is characterized in that the object
Reason mixing is mixed using blender.
7. a kind of preparation method of nonmetallic composite Nano heat sink material as claimed in claim 6, which is characterized in that described to stir
The revolving speed for mixing machine is 80~600rpm.
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| CN201710739694.4A CN107603128B (en) | 2017-08-25 | 2017-08-25 | A kind of nonmetallic composite Nano heat sink material and preparation method thereof |
| PCT/CN2018/096590 WO2019037564A1 (en) | 2017-08-25 | 2018-07-23 | Non-metal composite nano heat dissipation material and preparation method therefor |
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| CN108131525A (en) * | 2018-01-22 | 2018-06-08 | 南通中远克莱芬船舶工程有限公司 | A kind of dehumidifier socket wrench specially adapted for it compensator |
| CN115075932B (en) * | 2022-06-30 | 2024-02-02 | 牛墨石墨烯应用科技有限公司 | Preparation method and application of graphene heat dissipation composite material for automobile engine |
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| CN101550330A (en) * | 2009-05-18 | 2009-10-07 | 浙江大学 | Lightweight high heat conductive composite material and preparation method thereof |
| CN102260413B (en) * | 2010-05-28 | 2015-04-22 | 上海合复新材料科技有限公司 | Composite material component with high flame retardation performance and high heat conduction performance, and its manufacture method |
| CN102850717A (en) * | 2012-09-27 | 2013-01-02 | 北京化工大学 | High thermal conductivity phenolic resin and preparation method |
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