CN108102305A - A kind of preparation method and its usage for the high heat conduction plastics that insulate - Google Patents
A kind of preparation method and its usage for the high heat conduction plastics that insulate Download PDFInfo
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- CN108102305A CN108102305A CN201711176746.8A CN201711176746A CN108102305A CN 108102305 A CN108102305 A CN 108102305A CN 201711176746 A CN201711176746 A CN 201711176746A CN 108102305 A CN108102305 A CN 108102305A
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- high heat
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
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- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
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- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
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- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
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- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
- H01B3/421—Polyesters
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- H—ELECTRICITY
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- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/447—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from acrylic compounds
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- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2333/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
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- C08J2355/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2323/00 - C08J2353/00
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- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
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Abstract
The invention discloses a kind of preparation method and its usages for the high heat conduction plastics that insulate, and comprise the following steps：(1) inorganic nanometer powder with insulation high heat conduction is prepared into the nano color paste of good dispersion；(2) by the nano color paste of the high heat conduction that has the function of to insulate of good dispersion and plastic master batch under the melting temperature of plastics, uniform through twin-screw shear agitation, extruding pelletization, obtains the plastic master batch of high heat conductance afterwards；(3) plastic master batch of a small amount of insulation high heat conduction function is added during film is prepared can prepare the film of high heat conduction function.Present invention application has the function of the insulate inorganic nanometer powder of high heat conduction and the blending of organic polymer plastic master batch, directly multi-functional inorganic nano-particle is aggregated in inside high-molecular organic material, the functionality and stability of inorganic material can be kept, and can be with modified organic polymer device for Optical Properties of Materials, mechanical performance, chemical stability etc..
Description
Technical field
The present invention relates to a kind of preparation method and its usages for the high heat conduction plastics that insulate, and particularly relate to directly preparing heat conduction
Organic-inorganic plastic pellet of the addition with high heat conduction, is cast or is molded afterwards during plastics, without
Other auxiliary processes.
Background technology
It is always field of compound material that will have functional inorganic nano material and high-molecular organic material uniformly compound
The hot spot of research.Because general high-molecular organic material has the production simple, easy processing shaping, transparency high, at low cost etc.
Advantage, but also have the shortcomings that weatherability is poor, functional weak；And inorganic material have great thermotolerance, it is multi-functional (antistatic, uvioresistant,
Antifouling, antistatic, thermal conductivity are good) the advantages that, but shortcoming is to be not easy machine-shaping, particularly non-geometric rule is unmanageable
Shortcoming restricts its large-scale use in daily life.Therefore, homogenous material constrains organic material and inorganic material in reality
Application in the life process of border.
If inorganic material, particularly inorganic nanoparticles can be homogeneously dispersed in high-molecular organic material, not only may be used
To prepare multi-functional composite material, while the advantages of also have both organic material and inorganic material, as organic material easily into
Type is processed, and inorganic material can also improve the wearability of organic material, improve weatherability of organic material etc..At present, this
Kind organic/inorganic composite material will progressively be applied in our daily life, such as organic-inorganic thermal isolation film, organic-inorganic are prevented
Electrostatic film, organic-inorganic insulation film, organic-inorganic anti-pollution film, organic-inorganic nano heat dissipation film etc..
At present, the patent in terms of the insulation high heat conduction organic/inorganic composite material that low cost is prepared on a large scale, which rarely has, to be related to,
Particularly in field of nanocomposite materials, the insulation high heat conduction product price not changed under plastic body color regime is all very high
It is expensive, and most of is all direct addition or coupling agent modified, is all opaque product, and inorganic material is organic
The development trend of high dispersive this composite material in system has obtained being widely recognized as academia and industrial quarters.Therefore, herein
A kind of preparation method for having insulation high heat conduction organic/inorganic composite material is disclosed, can be made by existing plastic production technology
For the plastic products of high heat conduction that insulate are gone out, the plastic plate prepared by the nano compound agglomerate or plastics are prepared with highly thermally conductive
The advantages that rate, this is Application of micron in one good road of developing of high performance plastics product.
The content of the invention
The purpose of the invention is to provide a kind of preparation method for the high heat conduction plastics that insulate, to solve the upper of the prior art
State problem.
The purpose of the present invention is what is be achieved through the following technical solutions.
A kind of preparation method for the high heat conduction plastics that insulate, comprises the following steps：
(1) inorganic nanometer powder with insulation high heat conduction is prepared into the nano color paste of good dispersion；
(2) by nano color paste and the plastic master batch of the high heat conduction that has the function of to insulate of good dispersion plastics melting temperature
Under, uniform through twin-screw shear agitation, extruding pelletization, obtains the plastic master batch of high heat conductance afterwards；
(3) plastic master batch of a small amount of insulation high heat conduction function is added during film is prepared can prepare height
The film of heat conduction function.
Wherein,
The preparation method of insulation high heat conducting nano mill base in step (1), its step are as follows：
(a) mix：The nano-powder, organic dispersing agent and organic solvent three that have the function of insulation high heat conduction are mixed；
(b) disperse：Mixture is 30-60 minutes scattered in the shearing of high speed shear decentralized medium high speed；
(c) grind：The slurry that high speed shear is disperseed puts grinding distribution in jar mill, ball mill or sand mill into；
(d) sieve：Ground mill base is sieved, to remove big particle.
In step (a), the inorganic nanometer powder is usually metal oxide, metal nitride, metal carbides；It is excellent
Select metal nitride, most preferred metal aluminum nitride nanometer powder.In step (a), the three-dimensional ruler of the nano-powder for the high heat conduction that insulate
It is very little to be no more than 100 nanometers.
In step (a), organic dispersing aid is the dispersant containing high polymer long chain, selected from containing hydroxyl organic polymer
In long-chain, carboxyl organic polymer long-chain, epoxy group organic polymer long-chain or organic polymer long-chain containing amino
It is a kind of.
Further, organic dispersing aid is selected from polyethylene glycols, polyacrylic, polyvinylpyrrolidone class, poly-
One kind in urethane class dispersant.The additive amount of organic dispersing aid should be the 0.5-15% of inorganic nanometer powder, be preferably 5-
8%.
In step (a), the organic solvent be alcohols (such as methanol, ethyl alcohol, propyl alcohol, butanol), esters (methyl acetate,
Ethyl acetate, butyl acetate etc.), the common industrial organic solvent such as benzene class (toluene, dimethylbenzene etc.), ketone, ethers.
In step (b), the decentralized medium is generally atent solvent, carried out in inert media it is organically-modified, can be with
It prevents the denaturation of inorganic nano, improves the chemical stability of powder.
In step (2), plastic master batch be the common organic polymer plastic master batch for preparing plastic material, as PET master batch,
PP master batches, PA master batches, PI master batches, ABS masterbatch, PC master batches, LCP master batches etc. or compound master batch.
In step (3), the compound particle of the high heat conduction that insulate before film is prepared, it is necessary to by 120 DEG C it is dry 24 it is small when,
And it is mixed 30 minutes or more with the corresponding white agitated machine of master batch.
In step (3), during preparing film, the additive amount of functional agglomerate is usually no more than 70%, preferably more than
50%, more preferably no more than 30%.
Beneficial effects of the present invention are：It is of the invention using the inorganic nanometer powder with insulation high heat conduction and organic high
Molecule plastic master batch is blended, and directly multi-functional inorganic nano-particle is aggregated in inside high-molecular organic material, such side
Face can keep the functionality and stability of inorganic material, on the other hand can also modified organic polymer device for Optical Properties of Materials,
Mechanical performance, chemical stability etc., and the composite master batch prepared can be used for easily various plastic films, and this modeling
Material products have many advantages, such as good weatherability, yellowing resistance, can be widely applied to the fields such as building, automobile, ship.
Specific embodiment
With reference to the specific embodiment technical characterstic that the present invention is further explained.
Embodiment 1
Step (1) prepares the scattered mill base of insulation high heat conduction function
10 parts of aluminium nitride, 89 parts of isopropanol are taken, 1 part of PVP dispersants are put into rustless steel container, are disperseed in high speed shear
It is carried out pre-dispersed 30 minutes with 1500r/min in machine；When being put into that ball milling 24 is small in ball mill afterwards, sieving removal bulky grain,
Obtain the nano color paste of homodisperse caesium tungsten bronze barrier.
Step (2)
The above-mentioned heat conducting nano mill base prepared and PET master batch are blended, heats and disperses in screw pelletizer, squeeze afterwards
Go out, cool down, be granulated obtain with insulation high heat conduction organic-inorganic PET composite master batch
Step (3)
When preparing insulation high-heat-conductive composite material, by the organic-inorganic PET composite master batch with insulation high heat conduction through drying
When 120 DEG C of dryings 24 of case are small, with having the addition of the quality of light PET particles greatly than carrying out mixing addition for 10%, it is possible to obtain absolutely
The PET film of edge high heat conduction.
The thermal conductivity factor of film is at 3.5W/ (mk)
Embodiment 2
Step (1) prepares the scattered mill base of insulation high heat conduction function
25 parts of aluminium nitride, 74 parts of isopropanol are taken, 1 part of silane coupling agent is put into rustless steel container, in high speed shear point
It dissipates in machine and is carried out pre-dispersed 30 minutes with 1500r/min；When being put into that ball milling 24 is small in ball mill afterwards, big of sieving removal
Grain, obtains the aluminum nitride nanometer mill base of homodisperse high heat conduction function.
Step (2)
The above-mentioned heat conducting nano mill base prepared and ABS masterbatch are blended, heats and disperses in screw pelletizer, squeeze afterwards
Go out, cool down, be granulated obtain with insulation high heat conduction organic-inorganic ABS composite master batch
Step (3)
When preparing insulation high-heat-conductive composite material, by the organic-inorganic ABS composite master batch with insulation high heat conduction through drying
When 120 DEG C of dryings 24 of case are small, the quality addition with ABS particles for 20% than carrying out mixing addition, it is possible to obtain insulation height and lead
The ABS plastic product of heat
The thermal conductivity factor of film is at 5.0W/ (mk)
Embodiment 3
Step (1) prepares the scattered mill base of insulation high heat conduction function
25 parts of aluminium nitride, 74 parts of isopropanol are taken, 1 part of silane coupling agent is put into rustless steel container, in high speed shear point
It dissipates in machine and is carried out pre-dispersed 30 minutes with 1500r/min；When being put into that ball milling 24 is small in ball mill afterwards, big of sieving removal
Grain, obtains the aluminum nitride nanometer mill base of homodisperse high heat conduction function.
Step (2)
The above-mentioned heat conducting nano mill base prepared and PC master batches are blended, heats and disperses in screw pelletizer, squeeze afterwards
Go out, cool down, be granulated obtain with insulation high heat conduction organic-inorganic PC composite master batch
Step (3)
When preparing insulation high-heat-conductive composite material, by the organic-inorganic PC composite master batch with insulation high heat conduction through baking oven
When 120 DEG C of dryings 24 are small, the quality addition with PC particles for 20% than carrying out mixing addition, it is possible to obtain insulation high heat conduction
PC plate material.
The thermal conductivity factor of PC plate is at 6.8W/ (mk)
Embodiment 4
Step (1) prepares the scattered mill base of insulation high heat conduction function
25 parts of aluminium nitride, 74 parts of isopropanol are taken, 1 part of silane coupling agent is put into rustless steel container, in high speed shear point
It dissipates in machine and is carried out pre-dispersed 30 minutes with 1500r/min；When being put into that ball milling 24 is small in ball mill afterwards, big of sieving removal
Grain, obtains the aluminum nitride nanometer mill base of homodisperse high heat conduction function.
Step (2)
The above-mentioned heat conducting nano mill base prepared and PMMA master batches are blended, heats and disperses in screw pelletizer, afterwards
It squeezes out, cool down, granulation obtains the organic-inorganic PMMA composite master batch with insulation high heat conduction
Step (3)
When preparing insulation high-heat-conductive composite material, by the organic-inorganic PMMA composite master batch with insulation high heat conduction through drying
When 120 DEG C of dryings 24 of case are small, the quality addition with PMMA particles for 20% than carrying out mixing addition, it is possible to obtain insulation height and lead
The PMMA plates of heat.
The thermal conductivity factor of PMMA is at 3.5W/ (mk)
Embodiment 5
Step (1) prepares the scattered mill base of insulation high heat conduction function
25 parts of aluminium nitride, 74 parts of isopropanol are taken, 1 part of silane coupling agent is put into rustless steel container, in high speed shear point
It dissipates in machine and is carried out pre-dispersed 30 minutes with 1500r/min；When being put into that ball milling 24 is small in ball mill afterwards, big of sieving removal
Grain, obtains the aluminum nitride nanometer mill base of homodisperse high heat conduction function.
Step (2)
The above-mentioned heat conducting nano mill base prepared and LCP master batches are blended, heats and disperses in screw pelletizer, squeeze afterwards
Go out, cool down, be granulated obtain with insulation high heat conduction organic-inorganic LCP composite master batch
Step (3)
When preparing insulation high-heat-conductive composite material, by the organic-inorganic LCP composite master batch with insulation high heat conduction through drying
When 120 DEG C of dryings 24 of case are small, the quality addition with LCP particles for 10% than carrying out mixing addition, it is possible to obtain insulation height and lead
The LCP plastic products of heat.
The thermal conductivity factor of LCP plastics is at 3.2W/ (mk)
Embodiment 6
Step (1) prepares the scattered mill base of insulation high heat conduction function
25 parts of aluminium nitride, 74 parts of isopropanol are taken, 1 part of silane coupling agent is put into rustless steel container, in high speed shear point
It dissipates in machine and is carried out pre-dispersed 30 minutes with 1500r/min；When being put into that ball milling 24 is small in ball mill afterwards, big of sieving removal
Grain, obtains the aluminum nitride nanometer mill base of homodisperse high heat conduction function.
Step (2)
The above-mentioned heat conducting nano mill base prepared and PCT master batches are blended, heats and disperses in screw pelletizer, squeeze afterwards
Go out, cool down, be granulated obtain with insulation high heat conduction organic-inorganic PCT composite master batch
Step (3)
When preparing insulation high-heat-conductive composite material, by the organic-inorganic PCT composite master batch with insulation high heat conduction through drying
When 120 DEG C of dryings 24 of case are small, the quality addition with PCT particles for 10% than carrying out mixing addition, it is possible to obtain insulation height and lead
The PCT plastic products of heat.
The thermal conductivity factor of PCT composite plastics is at 3.2W/ (mk)
In short, organic/inorganic composite material prepared by this method, has high thermal conductivity.Due to the high stable of inorganic material
Property, when inorganic nanometer powder into cross organic polymeric dispersants be modified after, can well with organic polymer plastic pellet
It is compatible.In addition, high-molecular organic material as protective layer, can protect the stability of inorganic nanometer powder well.The present invention
Building, automobile, electronics, furniture etc. can be widely applied to by the thermal conductivity of the inorganic nano material modified organic material of high heat conduction
Field, the highly heat-conductive material prepared have many advantages, such as that light weight, heat conduction be good, easy processing.
Claims (15)
1. a kind of preparation method for the high heat conduction plastics that insulate, it is characterised in that：Comprise the following steps：
(1) inorganic nanometer powder with insulation high heat conduction is prepared into the nano color paste of good dispersion；
(2) by the nano color paste of the high heat conduction that has the function of to insulate of good dispersion and plastic master batch under the melting temperature of plastics,
Uniform through twin-screw shear agitation, extruding pelletization, obtains the plastic master batch of high heat conductance afterwards；
(3) plastic master batch of a small amount of insulation high heat conduction function is added during film is prepared can prepare high heat conduction
The film of function.
2. a kind of preparation method of high heat conduction plastics that insulate according to claim 1, it is characterised in that：The insulation height is led
The preparation method of hot nano color paste, its step are as follows：
(a) mix：The inorganic nanometer powder, organic dispersing agent and organic solvent three that have the function of insulation high heat conduction are mixed；
(b) disperse：Mixture is 30-60 minutes scattered in the shearing of high speed shear decentralized medium high speed；
(c) grind：The slurry that high speed shear is disperseed puts grinding distribution in jar mill, ball mill or sand mill into；
(d) sieve：Ground mill base is sieved, to remove big particle.
3. a kind of preparation method of high heat conduction plastics that insulate according to claim 2, it is characterised in that：In step (a), institute
The inorganic nanometer powder stated is one kind in metal oxide, metal nitride and metal carbides.
4. a kind of preparation method of high heat conduction plastics that insulate according to claim 3, it is characterised in that：It is described inorganic to receive
Rice flour body is nitride metal aluminum nanopowder.
5. a kind of preparation method of high heat conduction plastics that insulate according to claim 3, it is characterised in that：In step (a), absolutely
The three-dimensional dimension of the nano-powder of edge high heat conduction is no more than 100 nanometers.
6. a kind of preparation method of high heat conduction plastics that insulate according to claim 3, it is characterised in that：In step (a), have
Machine dispersing aid is the dispersant containing high polymer long chain, selected from containing hydroxyl organic polymer long-chain, carboxyl organic polymer
One kind in long-chain, epoxy group organic polymer long-chain or organic polymer long-chain containing amino；Organic dispersing aid
Additive amount is the 0.5-15% of inorganic nanometer powder.
7. a kind of preparation method of high heat conduction plastics that insulate according to claim 6, it is characterised in that：Organic dispersing aid
One kind in polyethylene glycols, polyacrylic, polyvinylpyrrolidone class, polyurethanes dispersant；It is organic to disperse to help
The additive amount of agent is inorganic nanometer powder 5-8%.
8. a kind of preparation method of high heat conduction plastics that insulate according to claim 3, it is characterised in that：In step (a), institute
The organic solvent stated is alcohols, esters, the common industrial organic solvent such as benzene class, ketone, ethers.
9. a kind of preparation method of high heat conduction plastics that insulate according to claim 8, it is characterised in that：Alcohols is selected from first
Alcohol, ethyl alcohol, propyl alcohol, butanol；Esters are selected from methyl acetate, ethyl acetate, butyl acetate, and benzene class is selected from toluene, dimethylbenzene.
10. a kind of preparation method of high heat conduction plastics that insulate according to claim 1, it is characterised in that：In step (2),
The one kind or several of plastic master batch in PET master batch, PP master batches, PA master batches, PI master batches, ABS masterbatch, PC master batches and LCP master batches
Kind is compound.
11. a kind of preparation method of high heat conduction plastics that insulate according to claim 1, it is characterised in that：In step (3),
The compound particle for the high heat conduction that insulate before film is prepared, it is necessary to by 120 DEG C it is dry 24 it is small when, and passed through with corresponding white master batch
Mixer mixes 30 minutes or more.
12. a kind of preparation method of high heat conduction plastics that insulate according to claim 1, it is characterised in that：In step (3),
During preparing film, the additive amount of functional agglomerate is no more than 70%.
13. a kind of preparation method of high heat conduction plastics that insulate according to claim 12, it is characterised in that：Functional agglomerate
Additive amount is no more than 50%.
14. a kind of preparation method of high heat conduction plastics that insulate according to claim 13, it is characterised in that：Functional agglomerate
Additive amount is no more than 30%.
15. the preparation method according to claim 1-14 is one of arbitrary, it is characterised in that：The products application of preparation is in building
It builds, automobile, ship domain.
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Application publication date: 20180601 |