CN108003612A - A kind of preparation method of the multifunctional composite with thermal conductivity electromagnetic shielding - Google Patents
A kind of preparation method of the multifunctional composite with thermal conductivity electromagnetic shielding Download PDFInfo
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Abstract
The invention discloses a kind of preparation method of the multifunctional composite with thermal conductivity electromagnetic shielding, belong to the preparation method field of multifunctional composite, the preparation method for the multifunctional composite that should be electromagnetically shielded with thermal conductivity by adding nanometer ferrite base, graphene, copper powder, carbon black, nanometer silicon carbide and high molecular material in formula.A kind of preparation method of multifunctional composite with thermal conductivity electromagnetic shielding proposed by the invention, it can improve product effectiveness, improve the material properties such as tensile strength and the compression strength of composite material.
Description
Technical field
The present invention relates to the preparation method field of multifunctional composite, more particularly to a kind of have thermal conductivity
The preparation method of the multifunctional composite of electromagnetic shielding.
Background technology
With the development of science and technology, polymer composite is more and more widely used in every field, such as heat conduction
Boundary material, conductive rubber material and electromagnetic shielding material etc..This is because compared with metal material, polymer composite is certainly
The advantage such as body lightweight, flexibility, compressible, corrosion-resistant.In general, polymer composite is by adding in polymer base material
Adding the filler of required performance (such as heat conduction, conduction, electromagnetic shielding) to be prepared.Thermal conductivity macromolecule theory thinks, to reach
To higher heat conduction, electric conductivity, the addition volume fraction of filler will reach more than 60%, so as to be contacted with each other between ensureing filler
Form heat conduction, the conductive network of connection.The addition of a large amount of heat fillings not only increases cost and weight, and can make material
Flexibility decrease, hardness increase, but heat conductivility is hardly resulted in and is obviously improved.
The structure that graphene is unfavorable for thermal conductivity network as filler is used alone, it is contemplated that high quality graphite at present
The production cost of alkene powder is still higher, and it is unsatisfactory to prepare high-performance thermal conductivity composite material using only graphene.Mesh
In preceding composite material, its effectiveness is general, and the material such as the tensile strength of composite material and compression strength
Poor-performing.
The content of the invention
The defects of in order to overcome the prior art, the technical problems to be solved by the invention are to propose that one kind is led with heat conduction
The preparation method of the multifunctional composite of electricity electromagnetic shielding, it can improve product effectiveness, improve composite material
Tensile strength and the material property such as compression strength.
For this purpose, the present invention uses following technical scheme：
The present invention provides it is a kind of with thermal conductivity electromagnetic shielding multifunctional composite preparation method,
Each component by weight uses following steps：
S1：By 30 parts of -45 parts of copper powders, 3 parts of -5 parts of silver powder, 18 parts of -24 parts of nanometer silicon carbides, 15 parts of -19 parts of carbon blacks, 16
- 23 parts of nanometer ferrite bases of part and 28 parts of -34 parts of graphenes, are added in high-speed mixer and carry out high-speed stirred, by material
Uniformly be put into after mixing in the baking oven full of inert gas dry 1 it is small when -3 it is small when；
S2：Again by above-mentioned dried material and 4 parts of -8 parts of zinc oxide whiskers, 10 parts of -18 parts of nano metal nickels and macromolecule
Material, which is added in high-speed mixer, carries out high-speed stirred, place into the baking oven full of inert gas dry 1 it is small when；
The high molecular material includes：18 parts of -26 parts of nylon -66s, 10 parts of -16 parts of poly(4-methyl-1-pentene)s and 5 part -8
Part Vingon；
S3：S2 resulting materials are added at a high speed in hing surface in the same direction and carry out extruding pelletization, in temperature
Abundant mixing extrusion is carried out at 190 DEG C -220 DEG C, pelletizing obtains the particle of 6mm-12mm.
In the present invention preferably technical solution, 3 parts of -5 parts of silver powder and S1 steps are added in the S1 steps by weight
Middle material stirs together, and the electrical and thermal conductivity performance of the composite material can be improved to benefit greatly by adding a small amount of silver powder.
In the present invention preferably technical solution, heat filling is added in the S1 steps by weight, the heat conduction is filled out
Material includes at least one of 2 parts of -4 parts of silicon nitrides, 2 parts of -4 parts of aluminium nitride and 2 parts of -4 parts of beryllium oxide, it is possible to increase its heat conduction
And anti-pressure ability.
In the present invention preferably technical solution, 3 parts of -6 parts of antioxidant 1010s are added in the S1 steps by weight
And one or both of 3 parts of -6 parts of antioxidants 168 mixture, the oxidation resistance of composite material is effectively improved, is extended
Its service life.
In the present invention preferably technical solution, curing agent 2,4- dichloro peroxidating are added in the S1 steps by weight
3 parts -5 parts of benzoyl, makes the composite material preferably agglomerate.
In the present invention preferably technical solution, high molecular material further includes 8 parts of -12 parts of polyimides in the S2 steps
And one or both of 8 parts of -12 parts of polyanilines mixture, improve the high temperature resistant of the composite material, low temperature tolerance ability and
Radiation resistance.
In the present invention preferably in technical solution, in the S1 steps, by 38 parts of copper powders, 22 parts of nanometer silicon carbides, 17 parts
Carbon black, 20 parts of nanometer ferrite bases and 30 parts of graphenes, are added in high-speed mixer and carry out high-speed stirred, and material is uniform
Be put into after mixing in the baking oven full of inert gas dry 2 it is small when.
In the present invention preferably in technical solution, in the S2 steps, then by above-mentioned dried material and 6 parts of zinc chloride crystalline substances
Palpus, 14 parts of nano metal nickels and high molecular material are added in high-speed mixer and carry out high-speed stirred, place into full of inertia
When drying 1 is small in the baking oven of gas.
In the present invention preferably technical solution, in the S2 steps, the high molecular material includes：22 parts of nylon-
66th, 13 parts of poly(4-methyl-1-pentene)s and 7 parts of Vingon.
In the present invention preferably technical solution, in the S3 steps, S2 resulting materials are added at a high speed engagement in the same direction
Extruding pelletization is carried out in type double screw extruder, carries out abundant mixing extrusion at 205 DEG C of temperature, pelletizing obtains 6mm-10mm's
Particle.
Beneficial effects of the present invention are：
The preparation method of multifunctional composite provided by the invention with thermal conductivity electromagnetic shielding, by being formulated
Middle addition nanometer ferrite base and graphene component, it is possible to increase the effectiveness of the composite material, while graphene
With good thermal conductivity ability；The heat conduction that the composite material is improved by adding copper powder, carbon black and nanometer silicon carbide is led
Electric energy power；By adding high molecular material, extrusion is uniformly mixed with other components and makes material, very strong resist is provided for composite material
Stretching and anti-pressure ability.
Embodiment
Further illustrate technical scheme below and by embodiment.
Embodiment one：
A kind of preparation method of the multifunctional composite with thermal conductivity electromagnetic shielding is provided in embodiment one, is pressed
The each component of parts by weight uses following steps：
S1：By 38 parts of copper powders, 22 parts of nanometer silicon carbides, 17 parts of carbon blacks, 20 parts of nanometer ferrite bases and 30 parts of graphenes,
It is added in high-speed mixer and carries out high-speed stirred, dry 2 is put into the baking oven full of inert gas after material is uniformly mixed
Hour；
S2：Above-mentioned dried material and 6 parts of zinc oxide whiskers, 14 parts of nano metal nickels and high molecular material are added to again
High-speed stirred is carried out in high-speed mixer, place into the baking oven full of inert gas dry 1 it is small when；
The high molecular material includes：22 parts of nylon -66s, 13 parts of poly(4-methyl-1-pentene)s and 7 parts of Vingon；
S3：S2 resulting materials are added at a high speed in hing surface in the same direction and carry out extruding pelletization, in temperature
Abundant mixing extrusion is carried out at 205 DEG C, pelletizing obtains the particle of 6mm-10mm.
Embodiment two
The preparation method for a kind of multifunctional composite with thermal conductivity electromagnetic shielding that embodiment two provides, by weight
The each component of amount part uses following steps：
S1：By 30 parts of copper powders, 18 parts of part nanometer silicon carbides, 15 parts of carbon blacks, 16 parts of nanometer ferrite bases and 28 parts of graphite
Alkene, is added in high-speed mixer and carries out high-speed stirred, is put into the baking oven full of inert gas and does after material is uniformly mixed
It is dry 1 it is small when；
S2：Above-mentioned dried material and 4 parts of zinc oxide whiskers, 10 parts of nano metal nickels and high molecular material are added to again
High-speed stirred is carried out in high-speed mixer, place into the baking oven full of inert gas dry 1 it is small when；
The high molecular material includes：18 parts of nylon -66s, 10 parts of poly(4-methyl-1-pentene)s and 5 parts of Vingon；
S3：S2 resulting materials are added at a high speed in hing surface in the same direction and carry out extruding pelletization, in temperature
Abundant mixing extrusion is carried out at 190 DEG C, pelletizing obtains the particle of 6mm-12mm.
Embodiment three
The preparation method for a kind of multifunctional composite with thermal conductivity electromagnetic shielding that embodiment three provides, by weight
The each component of amount part uses following steps：
S1：By 45 parts of copper powders, 24 parts of nanometer silicon carbides, 19 parts of carbon blacks, 23 parts of nanometer ferrite bases and 34 parts of graphite
Alkene, is added in high-speed mixer and carries out high-speed stirred, is put into the baking oven full of inert gas and does after material is uniformly mixed
It is dry 3 it is small when；
S2：Above-mentioned dried material and 8 parts of zinc oxide whiskers, 18 parts of nano metal nickels and high molecular material are added to again
High-speed stirred is carried out in high-speed mixer, place into the baking oven full of inert gas dry 1 it is small when；
The high molecular material includes：26 parts of nylon -66s, 16 parts of poly(4-methyl-1-pentene)s and 8 parts of Vingon；
S3：S2 resulting materials are added at a high speed in hing surface in the same direction and carry out extruding pelletization, in temperature
Abundant mixing extrusion is carried out at 220 DEG C, pelletizing obtains the particle of 8mm-12mm.
Example IV
The preparation method for a kind of multifunctional composite with thermal conductivity electromagnetic shielding that example IV provides, by weight
The each component of amount part uses following steps：
S1：By 38 parts of copper powders, 22 parts of nanometer silicon carbides, 17 parts of carbon blacks, 20 parts of nanometer ferrite bases and 30 parts of graphite
Alkene,
And 5 parts of silver powder and heat filling,
Heat filling includes the mixture of 3 parts of silicon nitrides, 3 parts of aluminium nitride and 3 parts of beryllium oxide,
The mixture of 5 parts of antioxidant 1010s and 5 parts of antioxidants 168,
Curing agent 2,4 parts of 4- dichlorobenzoperoxides,
It is added in high-speed mixer and carries out high-speed stirred, the baking oven full of inert gas is put into after material is uniformly mixed
When middle drying 2 is small；
S2：Above-mentioned dried material and 6 parts of zinc oxide whiskers, 14 parts of nano metal nickels and high molecular material are added to again
High-speed stirred is carried out in high-speed mixer, place into the baking oven full of inert gas dry 1 it is small when；
The high molecular material includes：22 parts of nylon -66s, 13 parts of poly(4-methyl-1-pentene)s and 7 parts of Vingon；
High molecular material in the S2 steps, further includes the mixture of 10 parts of polyimides and 10 parts of polyanilines,
S3：S2 resulting materials are added at a high speed in hing surface in the same direction and carry out extruding pelletization, in temperature
Abundant mixing extrusion is carried out at 205 DEG C, pelletizing obtains the particle of 6mm-10mm.
Embodiment five
The preparation method for a kind of multifunctional composite with thermal conductivity electromagnetic shielding that embodiment five provides, by weight
The each component of amount part uses following steps：
S1：By 38 parts of copper powders, 22 parts of nanometer silicon carbides, 17 parts of carbon blacks, 20 parts of nanometer ferrite bases and 30 parts of graphite
Alkene,
And 3 parts of silver powder and heat filling,
Heat filling includes the mixture of 3 parts of silicon nitrides and 3 parts of aluminium nitride,
5 parts of antioxidant 1010s,
Curing agent 2,3 parts of 4- dichlorobenzoperoxides,
It is added in high-speed mixer and carries out high-speed stirred, the baking oven full of inert gas is put into after material is uniformly mixed
When middle drying 2 is small；
S2：Above-mentioned dried material and 6 parts of zinc oxide whiskers, 14 parts of nano metal nickels and high molecular material are added to again
High-speed stirred is carried out in high-speed mixer, place into the baking oven full of inert gas dry 1 it is small when；
The high molecular material includes：22 parts of nylon -66s, 13 parts of poly(4-methyl-1-pentene)s and 7 parts of Vingon；
High molecular material in the S2 steps, further includes 10 parts of polyimides,
S3：S2 resulting materials are added at a high speed in hing surface in the same direction and carry out extruding pelletization, in temperature
Abundant mixing extrusion is carried out at 205 DEG C, pelletizing obtains the particle of 6mm-10mm.
Embodiment six
The preparation method for a kind of multifunctional composite with thermal conductivity electromagnetic shielding that embodiment six provides, by weight
The each component of amount part uses following steps：
S1：By 38 parts of copper powders, 22 parts of nanometer silicon carbides, 17 parts of carbon blacks, 20 parts of nanometer ferrite bases and 30 parts of graphite
Alkene,
And 4 parts of silver powder and heat filling,
Heat filling includes the mixture of 3 parts of aluminium nitride and 3 parts of beryllium oxide,
5 parts of antioxidants 168,
Curing agent 2,5 parts of 4- dichlorobenzoperoxides,
It is added in high-speed mixer and carries out high-speed stirred, the baking oven full of inert gas is put into after material is uniformly mixed
When middle drying 2 is small；
S2：Above-mentioned dried material and 6 parts of zinc oxide whiskers, 14 parts of nano metal nickels and high molecular material are added to again
High-speed stirred is carried out in high-speed mixer, place into the baking oven full of inert gas dry 1 it is small when；
The high molecular material includes：22 parts of nylon -66s, 13 parts of poly(4-methyl-1-pentene)s and 7 parts of Vingon；
High molecular material in the S2 steps, further includes 10 parts of polyanilines,
S3：S2 resulting materials are added at a high speed in hing surface in the same direction and carry out extruding pelletization, in temperature
Abundant mixing extrusion is carried out at 205 DEG C, pelletizing obtains the particle of 6mm-10mm.
Embodiment seven
The preparation method for a kind of multifunctional composite with thermal conductivity electromagnetic shielding that embodiment seven provides, by weight
The each component of amount part uses following steps：
S1：By 38 parts of copper powders, 22 parts of nanometer silicon carbides, 17 parts of carbon blacks, 20 parts of nanometer ferrite bases and 30 parts of graphite
Alkene,
And 5 parts of silver powder and heat filling,
Heat filling includes the mixture of 3 parts of silicon nitrides and 3 parts of beryllium oxide,
The mixture of 5 parts of antioxidant 1010s and 5 parts of antioxidants 168,
Curing agent 2,4 parts of 4- dichlorobenzoperoxides,
It is added in high-speed mixer and carries out high-speed stirred, the baking oven full of inert gas is put into after material is uniformly mixed
When middle drying 2 is small；
S2：Above-mentioned dried material and 6 parts of zinc oxide whiskers, 14 parts of nano metal nickels and high molecular material are added to again
High-speed stirred is carried out in high-speed mixer, place into the baking oven full of inert gas dry 1 it is small when；
The high molecular material includes：22 parts of nylon -66s, 13 parts of poly(4-methyl-1-pentene)s and 7 parts of Vingon；
High molecular material in the S2 steps, further includes the mixture of 10 parts of polyimides and 10 parts of polyanilines,
S3：S2 resulting materials are added at a high speed in hing surface in the same direction and carry out extruding pelletization, in temperature
Abundant mixing extrusion is carried out at 205 DEG C, pelletizing obtains the particle of 6mm-10mm.
Comparative example one：
By 40 parts of copper powders, 20 parts of aluminium powders, 25 parts of ball-type graphite and 45 parts of graphenes, it is added in high-speed mixer and carries out
High-speed stirred, then above-mentioned dried material and 5 parts of silver powder and 20 parts of nylon-6s are added in high-speed mixer and carry out high-speed stirring
Mix, place into the baking oven full of inert gas dry 3 it is small when；Resulting material is added to intermeshing twin-screw in the same direction at a high speed to squeeze
Go out and extruding pelletization is carried out in machine, carry out abundant mixing extrusion at 205 DEG C of temperature, pelletizing obtains the particle of 6mm-10mm.
Embodiment one to the finished product of embodiment seven and comparative example one is subjected to Experimental comparison：
At the same time according to testing product sample its stretch-proof and pressure resistance under ATSM-D638 standard test conditions respectively
Degree；At the same time according to testing product sample its capability of electromagnetic shielding respectively under mono- 2006 standard test conditions of GB/T12190；At the same time
Oxygen is filled with 100 DEG C, the oxidization condition of copper powder is judged by the mass change of determination sample, by the way that oxidization of copper powder is calculated
Rate；Electrical conductivity carries out product sample using the double electrical measurement four-point probes of RTS-9 types of four probe scientific ＆ technical corporation of Guangzhou respectively
Test；Product sample is tested respectively according under GB/T10294-2008 standard test conditions；Utilize WILTRON at the same time
54169A Network Analyzers test product sample respectively；Shown in table specific as follows：
The test index of embodiment one to embodiment seven and comparative example one is as follows：
The present invention is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from the present invention's
In the case of spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.The present invention is from this
The limitation of specific embodiment disclosed in place, other embodiments fallen into claims hereof belong to protection of the present invention
Scope.
Claims (10)
- A kind of 1. preparation method of the multifunctional composite with thermal conductivity electromagnetic shielding, it is characterised in thatEach component by weight uses following steps：S1：By 30 parts of -45 parts of copper powders, 18 parts of -24 parts of nanometer silicon carbides, 15 parts of -19 parts of carbon blacks, 16 parts of -23 parts of nanometer ferrites Base and 28 parts of -34 parts of graphenes, are added in high-speed mixer and carry out high-speed stirred, be put into and be full of after material is uniformly mixed In the baking oven of inert gas it is dry 1 it is small when -3 it is small when；S2：Again by above-mentioned dried material and 4 parts of -8 parts of zinc oxide whiskers, 10 parts of -18 parts of nano metal nickels and high molecular material Be added in high-speed mixer and carry out high-speed stirred, place into the baking oven full of inert gas dry 1 it is small when；The high molecular material includes：18 parts of -26 parts of nylon -66s, 10 parts of -16 parts of poly(4-methyl-1-pentene)s and 5 parts -8 parts are poly- Vinylidene chloride；S3：S2 resulting materials are added at a high speed in hing surface in the same direction and carry out extruding pelletization, in temperature 190 Abundant mixing extrusion is carried out at DEG C -220 DEG C, pelletizing obtains the particle of 6mm-12mm.
- 2. the preparation method of the multifunctional composite according to claim 1 with thermal conductivity electromagnetic shielding, it is special Sign is：3 parts of -5 parts of silver powder are added in the S1 steps by weight with being stirred in S1 steps together with material.
- 3. the preparation method of the multifunctional composite according to claim 1 with thermal conductivity electromagnetic shielding, it is special Sign is：Heat filling is added in the S1 steps by weight, the heat filling includes 2 parts of -4 parts of silicon nitrides, 2 parts of -4 parts of nitrogen Change at least one of aluminium and 2 parts of -4 parts of beryllium oxide.
- 4. the preparation method of the multifunctional composite according to claim 1 with thermal conductivity electromagnetic shielding, it is special Sign is：One kind in 3 parts of -6 parts of antioxidant 1010s and 3 parts of -6 parts of antioxidants 168 is added in the S1 steps by weight Or two kinds of mixtures.
- 5. the preparation method of the multifunctional composite according to claim 1 with thermal conductivity electromagnetic shielding, it is special Sign is：3 parts -5 parts of curing agent 2,4- dichlorobenzoperoxides are added in the S1 steps by weight.
- 6. the preparation method of the multifunctional composite according to claim 1 with thermal conductivity electromagnetic shielding, it is special Sign is：In the S2 steps high molecular material further include 8 parts of -12 parts of polyimides and one kind in 8 parts of -12 parts of polyanilines or Two kinds of mixtures.
- 7. the preparation method of the multifunctional composite according to claim 1 with thermal conductivity electromagnetic shielding, it is special Sign is：In the S1 steps, by 38 parts of copper powders, 22 parts of nanometer silicon carbides, 17 parts of carbon blacks, 20 parts of nanometer ferrite bases and 30 parts Graphene, is added in high-speed mixer and carries out high-speed stirred, and the baking oven full of inert gas is put into after material is uniformly mixed When middle drying 2 is small.
- 8. the preparation method of the multifunctional composite according to claim 1 with thermal conductivity electromagnetic shielding, it is special Sign is：In the S2 steps, then by above-mentioned dried material and 6 parts of zinc oxide whiskers, 14 parts of nano metal nickels and high molecular material Be added in high-speed mixer and carry out high-speed stirred, place into the baking oven full of inert gas dry 1 it is small when.
- 9. the preparation method of the multifunctional composite according to claim 1 with thermal conductivity electromagnetic shielding, it is special Sign is：In the S2 steps, the high molecular material includes：22 parts of nylon -66s, 13 parts of poly(4-methyl-1-pentene)s and 7 parts are poly- Vinylidene chloride.
- 10. the preparation method of the multifunctional composite according to claim 1 with thermal conductivity electromagnetic shielding, it is special Sign is：In the S3 steps, S2 resulting materials are added at a high speed in hing surface in the same direction and carry out extruding pelletization, Abundant mixing extrusion is carried out at 205 DEG C of temperature, pelletizing obtains the particle of 6mm-10mm.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110498998A (en) * | 2019-08-27 | 2019-11-26 | 罗春华 | A kind of electromagnetic shielding engineering plastics and preparation method with three-dimensional structure |
| CN111548618A (en) * | 2020-06-29 | 2020-08-18 | 江西伟普科技有限公司 | Metal-loaded carbon/polymer-based electromagnetic shielding material and preparation method thereof |
| CN111592744A (en) * | 2020-06-29 | 2020-08-28 | 江西伟普科技有限公司 | Metal-loaded carbon/polymer-based electromagnetic shielding material and preparation method thereof |
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