CN108102304A - A kind of preparation method and its usage of step biaxial tension insulation high heat conduction film - Google Patents
A kind of preparation method and its usage of step biaxial tension insulation high heat conduction film Download PDFInfo
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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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- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
- C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2379/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2477/06—Polyamides derived from polyamines and polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2479/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2461/00 - C08J2477/00
- C08J2479/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2479/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/28—Nitrogen-containing compounds
- C08K2003/282—Binary compounds of nitrogen with aluminium
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- C—CHEMISTRY; METALLURGY
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The invention discloses a kind of preparation method and its usage of step biaxial tension insulation high heat conduction film, this method comprises the following steps：(1) inorganic nanometer powder with insulation high heat conduction is prepared into the nano color paste of good dispersion；(2) nano color paste of the high heat conduction that has the function of to insulate of good dispersion and plastic master batch are stirred, afterwards extruding pelletization through twin-screw under the melting temperature of plastics, obtains the organic and inorganic plastic master batch of high heat conductance.(3) film of high heat conduction function can be prepared by a small amount of insulation high heat conduction functional particles being added during film is prepared.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, not only the functionality and stability of inorganic material, but also modified organic polymer device for Optical Properties of Materials, mechanical performance, chemical stability etc. had been kept.
Description
Technical field
The present invention relates to a kind of preparation method and its usages of step biaxial tension insulation high heat conduction film, particularly relate to straight
It being connected on during preparing heat conduction film and adds the organo-mineral complexing particle with high heat conduction, once step stretching forms afterwards, and
Other coating process is not required.
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 organo-mineral complexing film is disclosed, can be made by existing film production process
It is standby go out transparency is good, the film of insulation high heat conduction, the plastic plate or film prepared by the composite master batch have mist degree it is low,
The advantages that good weatherability, this is the one good road of developing for preparing high performance plastics product.
The content of the invention
The purpose of the invention is to provide a kind of preparation method of step biaxial tension insulation high heat conduction film, to solve
The above problem of the prior art.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of preparation method of step biaxial tension insulation high heat conduction film, 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, it is stirred through twin-screw, afterwards extruding pelletization, obtains the organic and inorganic plastic master batch of high heat conductance.
(3) a small amount of insulation high heat conduction functional particles are added during film is prepared can prepare high heat conduction work(
The film of energy.
Wherein, in step (1), the preparation method of insulation high heat conducting nano mill base, which includes, to be mixed, disperses, being ground up, sieved four
Step, specially：
(a) inorganic nanometer powder, organic dispersing agent and organic solvent three with insulation high heat conduction are mixed；
(b) it is mixture is 30-60 minutes scattered in the shearing of high speed shear decentralized medium high speed；
(c) slurry for disperseing high speed shear puts grinding distribution in jar mill, ball mill or sand mill into；
(d) ground mill base is sieved, to remove big particle.
In step (a), the inorganic nanometer powder is one in metal oxide, metal nitride, metal carbides
Kind；It is preferred that metal nitride, most preferred metal aluminum nitride nanometer powder.The three-dimensional dimension of the inorganic nanometer powder for the high heat conduction that insulate
It is no more than 100 nanometers.
In step (a), organic dispersing aid is containing hydroxyl organic polymer long-chain, carboxyl organic polymer long-chain, ring
Oxygroup organic polymer long-chain or the organic polymer long-chain containing amino.Specially polyethylene glycols, polyacrylic, poly-
One kind in vinyl pyrrolidine ketone, polyurethanes dispersant.The additive amount of organic dispersing aid should be inorganic nanometer powder
0.5-15% or so, preferably 5-8%.
In step (a), the organic solvent can be alcohols (such as methanol, ethyl alcohol, propyl alcohol, butanol), esters (acetic acid first
Ester, 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), organic plastics master batch be the common organic polymer plastic master batch for preparing plastic material, such as PET
Master batch, PP master batches, PA master batches, PI master batches etc..
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), the additive amount of the compound particle for the high heat conduction that insulate is usually no more than 50%, and preferably more than 30%,
More preferably no more than 10%.
Thermal insulation refers to that the conductivity of material is low, the phenomenon that will not generating galvanic electricity.High heat conduction refers to that the thermal conductivity factor of film exists
More than 1.0W/mK, preferably more than 3.0W/mK, most preferably more than 5.0W/mK.
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
The present invention is described in more details below by specific embodiment.
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 conduction film, by the organic-inorganic PET composite master batch with insulation high heat conduction through baking oven 120
It is DEG C dry 24 it is small when, with having the addition of the quality of light PET particles greatly than carrying out mixing addition for 10%, it is possible to obtain insulation height and lead
The PET film of heat.
The thermal conductivity factor of film is at 2.1W/ (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 PI 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 PI composite master batch
Step (3)
When preparing insulation high heat conduction film, by the organic-inorganic PI composite master batch with insulation high heat conduction through baking oven 120
It is DEG C dry 24 it is small when, the quality addition with PI particles for 20% than carrying out mixing addition, it is possible to obtain the PI of insulation high heat conduction
Film.
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 PP 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 PP composite master batch
Step (3)
When preparing insulation high heat conduction film, by the organic-inorganic PP composite master batch with insulation high heat conduction through baking oven 120
It is DEG C dry 24 it is small when, the quality addition with PI particles for 20% than carrying out mixing addition, it is possible to obtain the PP of insulation high heat conduction
Film.
The thermal conductivity factor of film is at 3.1W/ (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 PA66 master batches are blended, heats and disperses in screw pelletizer, afterwards
It squeezes out, cool down, granulation obtains the organic-inorganic PA66 composite master batch with insulation high heat conduction
Step (3)
When preparing insulation high heat conduction film, by the organic-inorganic PA66 composite master batch with insulation high heat conduction through baking oven
When 120 DEG C of dryings 24 are small, the quality addition with PI particles for 20% than carrying out mixing addition, it is possible to obtain insulation high heat conduction
PA66 films.
The thermal conductivity factor of film is at 1.5W/ (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 PI 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 PI composite master batch
Step (3)
When preparing insulation high heat conduction film, by the organic-inorganic PI composite master batch with insulation high heat conduction through baking oven 120
It is DEG C dry 24 it is small when, the quality addition with PI particles for 10% than carrying out mixing addition, it is possible to obtain the PI of insulation high heat conduction
Film.
The thermal conductivity factor of film is at 3.2W/ (mk)
In short, organo-mineral complexing film 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
The insulation high heat conduction film prepared by once step stretching can be widely applied to the fields such as building, automobile, electronics, furniture, prepare
The high heat conduction film gone out has the advantages of transparency is high, and ageing-resistant ability is strong.
Claims (13)
1. a kind of preparation method of step biaxial tension insulation high heat conduction film, 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,
It is stirred through twin-screw, afterwards extruding pelletization, obtains the organic and inorganic plastic master batch of high heat conductance；
(3) high heat conduction function can be prepared by a small amount of insulation high heat conduction functional particles being added during film is prepared
Film；
Wherein, in step (1), the preparation method of insulation high heat conducting nano mill base, which includes, to be mixed, disperses, being ground up, sieved four steps, is had
Body is：
(a) inorganic nanometer powder, organic dispersing agent and organic solvent three with insulation high heat conduction are mixed；
(b) it is mixture is 30-60 minutes scattered in the shearing of high speed shear decentralized medium high speed；
(c) slurry for disperseing high speed shear puts grinding distribution in jar mill, ball mill or sand mill into；
(d) ground mill base is sieved, to remove big particle.
2. a kind of preparation method of step biaxial tension insulation high heat conduction film according to claim 1, it is characterised in that：
In step (a), the inorganic nanometer powder is metal oxide, one kind in metal nitride, metal carbides；Insulation is high
The three-dimensional dimension of the inorganic nanometer powder of heat conduction is no more than 100 nanometers.
3. a kind of preparation method of step biaxial tension insulation high heat conduction film according to claim 2, it is characterised in that：
The inorganic nanometer powder is metal nitride.
4. a kind of preparation method of step biaxial tension insulation high heat conduction film according to claim 3, it is characterised in that：
The inorganic nanometer powder is nitride metal aluminum nanopowder.
5. a kind of preparation method of step biaxial tension insulation high heat conduction film according to claim 1, it is characterised in that：
In step (a), organic dispersing aid is organic containing hydroxyl organic polymer long-chain, carboxyl organic polymer long-chain, epoxy group
High polymer long chain or the organic polymer long-chain containing amino；The additive amount of organic dispersing aid should be inorganic nanometer powder
0.5-15%.
6. a kind of preparation method of step biaxial tension insulation high heat conduction film according to claim 5, it is characterised in that：
Organic dispersing aid is for one in polyethylene glycols, polyacrylic, polyvinylpyrrolidone class, polyurethanes dispersant
Kind；The additive amount of organic dispersing aid should be the 5-8% of inorganic nanometer powder.
7. a kind of preparation method of step biaxial tension insulation high heat conduction film according to claim 1, it is characterised in that：
In step (a), the organic solvent can be alcohols, esters, the common industrial organic solvent of benzene class, ketone, ethers.
8. a kind of preparation method of step biaxial tension insulation high heat conduction film according to claim 7, it is characterised in that：
The alcohols is selected from methanol, ethyl alcohol, propyl alcohol, butanol；Esters are selected from methyl acetate, ethyl acetate, butyl acetate；Benzene class is selected from
Toluene, dimethylbenzene.
9. a kind of preparation method of step biaxial tension insulation high heat conduction film according to claim 1, it is characterised in that：
In step (2), organic plastics master batch is the common organic polymer plastic master batch for preparing plastic material, selected from PET master batch, PP
One or more of master batch, PA master batches, PI master batches.
10. a kind of preparation method of step biaxial tension insulation high heat conduction film according to claim 1, feature exist
In：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 with
The corresponding agitated machine of white master batch mixes 30 minutes or more.
11. a kind of preparation method of step biaxial tension insulation high heat conduction film according to claim 1, feature exist
In：In step (3), the additive amount of the compound particle for the high heat conduction that insulate is no more than 50%.
12. a kind of preparation method of step biaxial tension insulation high heat conduction film according to claim 11, feature exist
In：The additive amount of the compound particle for the high heat conduction that insulate is no more than 30%.
13. a kind of preparation method of step biaxial tension insulation high heat conduction film according to claim 12, feature exist
In：The additive amount of the compound particle for the high heat conduction that insulate is no more than 10%.
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| CN111409297A (en) * | 2020-03-30 | 2020-07-14 | 湖北亿纬动力有限公司 | Preparation method of coating film, coating film and battery |
| CN113426338A (en) * | 2021-06-29 | 2021-09-24 | 深圳市金菱通达电子有限公司 | Manufacturing method of insulating ultrahigh heat conduction composite material |
| CN113426338B (en) * | 2021-06-29 | 2023-06-30 | 深圳市金菱通达电子有限公司 | Manufacturing method of insulating ultrahigh-heat-conductivity composite material |
| CN115960410A (en) * | 2022-12-30 | 2023-04-14 | 广东创阳新材料科技有限公司 | Modified master batch and polyethylene protective film prepared from same |
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