CN109370185A - A kind of preparation method of polymer composite planar resonator - Google Patents
A kind of preparation method of polymer composite planar resonator Download PDFInfo
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- CN109370185A CN109370185A CN201811197671.6A CN201811197671A CN109370185A CN 109370185 A CN109370185 A CN 109370185A CN 201811197671 A CN201811197671 A CN 201811197671A CN 109370185 A CN109370185 A CN 109370185A
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- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/54—Electroplating of non-metallic surfaces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—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
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- C08J2381/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen, or carbon only; Polysulfones; Derivatives of such polymers
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- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
Abstract
A kind of preparation method of high molecular material planar resonator, firstly, designing according to the performance requirement of resonator and selecting suitable high molecular material as basis material；It then, is the green structure of planar resonator by suitable technological forming by high molecular material, molding, which can be, is first shaped to planar structure, then processes fine structure and constitutes resonator green structure, is also possible to a step straight forming；Further, its surface is made to obtain electric conductivity by method surface metalation chemically or physically resonator green structure；Further, resonator green structure is electroplated to obtain surface conductive layer of good performance；Finally, passing through surface protection processing so that overlay coating performance is stablized.Polymer composite planar resonator prepared by the present invention has the characteristics that lightweight, high flatness, dimensional accuracy are high, performance is stable and low in cost, can be widely used in radio frequency communication devices.
Description
Technical field
The present invention relates to a kind of preparation process of radio-frequency structure part more particularly to a kind of polymer composite planar resonants
The preparation method of device.
Background technique
In recent years, with the continuous development of the communication technology, product high speed, high density, the development of multi-functional high performance become
The direction that important and influential persons seeks mobile communication equipment towards miniaturization and lightweight is developed.Filter is the core in mobile communication base station
Part, the volume for reducing filter will be remarkably contributing to the miniaturization and lightweight of mobile communication equipment.Resonator is in filter
The component of most critical, in order to realize the miniaturization of filter, it is necessary to develop smaller or special construction resonator.
Replacing traditional solid type metal resonators using planar conductor type resonator is realize filter miniaturization one
A important directions.The structure size of planar resonator has great influence, especially planar resonant column to the performance of filter
Flatness and dimensional accuracy are one of the main factors for determining properties of product.Currently, planar conductor resonator is all by metal
By machining, the mode being then electroplated is made material.Due to the moulding and ductility of metal material, when the thickness of metal material
When the smaller or width of degree is smaller, product is very easy to deformation during making and using, and causes product is subsequent to use
Journey is very troublesome or is not available.Therefore, the processed of the planar conductor resonator of high-precision, high flatness how is realized
Journey is that many manufactory commercial cities are making great efforts to solve the problems, such as.
Compared to metal material, macromolecule and its composite material have good resilience and processing performance, especially fine
Tie up the polymer-based composite of enhancing.Therefore, using processing of high molecular material planar resonator, resonance can be avoided well
The deformation of device in the process of processing and using, guarantees the quality and stability of product.In addition, polymer composite is with remote low
In the density of metal material, for preparing the weight that product can be greatly lowered in planar resonator.
Summary of the invention
The present invention is to solve above-mentioned problems of the prior art, and it is an object of the present invention to provide a kind of macromolecule composite wood
Expect the preparation method of planar resonator.
To achieve the above object, the present invention adopts the following technical scheme that:
A kind of preparation method of polymer composite planar resonator, comprising the following steps:
(1) requirement according to planar resonator to thermal expansion coefficient, intensity and thickness selects corresponding high molecular material to make
For basis material；
(2) basis material is shaped to planar resonator green structure；
(3) resonator green structure is carried out surface metalation by method chemically or physically makes its surface obtain conduction
Property；
(4) resonator green structure is electroplated to obtain surface conductive layer；
(5) pass through surface protection processing so that overlay coating performance is stablized.
A further improvement of the present invention lies in that high molecular material includes macromolecule matrix, reinforcing fiber, filler and auxiliary agent；
Wherein, by mass percentage, the mass content of macromolecule matrix is 20~80%, the mass content of reinforcing fiber is 5~
75%, the mass content of filler is 0~50%, and the mass content of auxiliary agent is 0.1~30%.
A further improvement of the present invention lies in that macromolecule matrix is thermoplastic macromolecule material or thermosetting polymer material
Material, reinforcing fiber are one of glass fibre, carbon fiber, metallic fiber, ceramic fibre or several, and reinforcing fiber knits state
Structure is fiber cloth, fibrofelt, fibre bundle, silvalin or chopped strand.
A further improvement of the present invention lies in that planar resonator green structure passes through one-step shaping method or distribution molding legal system
It is standby；Wherein, one-step shaping method refers to that by the method for molding or injection molding be planar resonator by polymer material molding
Green structure；Multistep molding method, which refers to, is processed as planar structure for resonator first, and then further retrofit is that plane is humorous
Vibration device green structure.
A further improvement of the present invention lies in that the processing method of planar structure refers to through compression molding, injection molding, squeezes
Polymer material molding is planar structure by molding, blow molding or calendering formation technique out, or will compression molding, injection molding
The molding work that molding, extrusion molding, blow molding, the two or more mode in calendering formation technique combine
Skill.
A further improvement of the present invention lies in that planar structure is passed through punching, cutting, turning, engraving, brill milling and/or laser
The mode of cutting further finishes, and the accurate knot of the connection that can be realized resonance function or interval is processed in planar structure
Structure.
A further improvement of the present invention lies in that surface metalation uses electroless plating method, physical vaporous deposition, chemical gaseous phase
One of sedimentation, spraying conductive layer method, coating or bonding metal layer are several.
A further improvement of the present invention lies in that surface conductive layer be silver layer, layer gold, layers of copper, nickel layer, zinc layers, in tin layers
It is one or several kinds of；The thickness range of every kind of coating is 0.1~300 μm.
A further improvement of the present invention lies in that surface protection processing is Passivation Treatment and/or Seal treatment.
Compared with prior art, the invention has the benefit that
1. replacing metal material to prepare planar resonator as basis material using high molecular material, product can be effectively ensured
Structural stability, avoid deforming in processing or use process.
2. the formed precision of product can effectively ensure that by a step or multistep molding to polymer composite,
Guarantee the quality of product.
3. being obtained by combining for surface metalation and electroplating technology on polymer composite green structure surface
Metal layer of good performance guarantees that product can effectively realize resonance function.
4. polymer composite planar resonator prepared by the present invention has lightweight, high flatness, dimensional accuracy height, property
The stable and low in cost feature of energy, can be widely used in radio frequency communication devices.
Detailed description of the invention
Fig. 1 is preparation flow figure of the invention.
Specific embodiment
The present invention provides a kind of preparation process of polymer composite planar resonator.Below to technical solution of the present invention
It is described in detail, so that it is more readily understood and grasps.
Referring to Fig. 1, the present invention provides a kind of preparation method of polymer composite planar resonator, specifically includes following
Step:
(1) it according to the performance requirement of resonator, designs and selects suitable high molecular material as basis material；According to flat
Requirement of the face resonator to thermal expansion coefficient, intensity and thickness designs and selects suitable high molecular material as basis material.
It (2) is planar resonator green structure by suitable technological forming by macromolecule matrix material；
(3) its surface is made to obtain electric conductivity by method surface metalation chemically or physically resonator green structure；
(4) resonator green structure is electroplated to obtain surface conductive layer of good performance；
(5) pass through surface protection processing so that overlay coating performance is stablized.
Wherein, the polymer composite is the mixture of macromolecule matrix, reinforcing fiber, filler and auxiliary agent, i.e.,
Polymer composite includes macromolecule matrix, reinforcing fiber, filler and auxiliary agent；Wherein, by mass percentage, polymer-based
The mass content of body is 20~80%, and the mass content of reinforcing fiber is 5~75%, and the mass content of filler is 0~50%, is helped
The mass content of agent is 0.1~30%.
Wherein macromolecule matrix can be thermoplastic macromolecule material or thermoset macromolecule material, and reinforcing fiber is
One of glass fibre, carbon fiber, metallic fiber, ceramic fibre are several, and the texture of reinforcing fiber can be fibre
Wei Bu, fibrofelt, fibre bundle, silvalin or chopped strand.Polymer composite before molding can be graininess, group
Shape or sheet.
The planar resonator green structure passes through one-step shaping method or distribution molding method preparation.Wherein, described one
One-step forming method refers to that by the method for molding or injection molding be planar resonator green structure by polymer material molding.Institute
The multistep molding method stated, which refers to, is processed as planar structure for resonator first, and then further retrofit is planar resonator embryo
Body structure.
The processing method of the planar structure refer to by compression molding, injection molding, extrusion molding, blow molding or
Polymer composite is shaped to planar structure by calendering formation technique, is also possible to will to be pressed and molded, injection molding, extrusion
The moulding process that two or more mode in molding, blow molding or calendering formation technique combines.
The planar structure can further pass through punching, cutting, turning, engraving, the side for boring milling and/or laser cutting
Formula further finishes, and the accurate knot of the connection that resonance function may be implemented or interval is further processed in planar structure
Structure.
The surface metalation can be led using electroless plating method, physical vaporous deposition, chemical vapour deposition technique, spraying
The combination of one of electric layer method, coating or bonding metal layer or several method.
So that its surface is obtained electric conductivity by method surface metalation chemically or physically resonator green structure, passes through
Electric plating method obtains conductive layer of good performance, and the type of conductive layer can be silver layer, layer gold, layers of copper, nickel layer, zinc layers, tin
One of layer is several.The thickness range of every kind of coating is 0.1~300 μm.
The planar resonator product of functional layer will be electroplate with by surface protection processing so that overlay coating performance is stablized.
The surface protection processing is Passivation Treatment and/or Seal treatment.
By processing after intermediate green structure or final products further can assemble or be assembled into multilayer or
Then person's composite construction carries out the processing of next step or uses directly as product.
Embodiment 1
It selects the unsaturated polyester resin composite material of fibre reinforced for basis material, macromolecule is prepared by the method for fractional steps
Composite material planar resonator, the specific process is as follows:
(1) select fibre reinforced unsaturated polyester resin for macromolecule matrix, fiber is chopped carbon fiber, macromolecule material
Material is also polymer composite, and by mass percentage, the mass content of fiber is 25% in high molecular material, inorganic powder
Packing quality content is 20%, and styrene is crosslinking agent.The mass content of crosslinking agent is 10%, remaining is fibre reinforced insatiable hunger
With polyester resin matrix (mass content 45%).
(2) unsaturated polyester resin composite material is added in hot pressing die, the hot pressing under conditions of 150 DEG C, 2Mpa
It is shaped to the planar structure with a thickness of 1mm, with certain shape.For example shape is rectangle or circle etc..
(3) using CNC milling machine, Milling Machining goes out to connect in hot-forming planar structure and spacer structure, formation plane are humorous
Vibration device green structure.Without determining shape, shape needs the performance indicator of product to go to design.
(4) the method deposited nickel layer that resonator green structure is passed through to physical vapour deposition (PVD) obtains one in resonator surface
Layer is capable of the metal layer of conduction, and the thickness range of metal layer is 0.1~300 μm, realizes the surface metalation of resonator.
(5) resonator after nickel layer will be deposited and carries out electro-coppering, and then obtained to have after further electrosilvering and well lead
Electrical and surface property planar resonator.
(6) planar resonator after electrosilvering is passivated processing, obtains the plating silver layer with good stability.
Through the above steps, planar resonator can be prepared.The machining accuracy of planar resonator can achieve ±
Flatness within the scope of 0.05,10 × 10mm can achieve ± 0.05, and surface smoothness is good, and the metal layer neutral salt spray time is reachable
To 12h, the performance requirement of filter can satisfy.
Embodiment 2
It selects the unsaturated polyester resin composite material of glass fiber reinforcement for basis material, high score is prepared by the method for fractional steps
Sub- composite material planar resonator, the specific process is as follows:
(1) epoxy resin composite material for selecting glass fabric to enhance is basis material, wherein fiber cloth is 7628 types
Plain weave fiber cloth, by mass percentage, the mass content of fiber is 40% in polymer composite；Epoxy resin is E44
Type epoxy resin, curing agent are DDM type curing agent, the gross mass of curing agent (i.e. auxiliary agent) and epoxy resin (i.e. macromolecule matrix)
Content is 60%.Glass fabric reinforced epoxy composite material is prepared by way of preimpregnation, by preimpregnated composite wood
Prepreg tape is made in material drying.
(2) by the epoxy resin prepared presoak with cutting at certain shape after, stack preimpregnation according to the thickness of product
Belt is subsequently placed in mold, and hot-forming under conditions of 160 DEG C, 2Mpa is the putting down with certain shape with a thickness of 1mm
Face structure.
(3) fine connection and interval knot are processed in hot-forming planar structure by the way of laser cutting
Structure forms resonator green structure after removing the flying dust on surface.
(4) by resonator green structure after overactivation electroless copper plating, resonator surface obtain one layer be capable of it is conductive
Metal layer realizes the surface metalation of resonator.
(5) resonator after electroless copper plating is subjected to electro-coppering, then obtaining after further electrosilvering has good conductive
The planar resonator of property and surface property.
(6) planar resonator after electrosilvering is passivated processing, obtains the plating silver layer with good stability.
Through the above steps, planar resonator can be prepared.The machining accuracy of planar resonator can achieve ±
Flatness within the scope of 0.05,10 × 10mm can achieve ± 0.05, and apparent property is good, and the performance that can satisfy filter needs
It asks.
Embodiment 3
It selects the PP composite material of glass fiber reinforcement for basis material, macromolecule composite wood is prepared by one-step method
Expect planar resonator, the specific process is as follows:
(1) select the acrylic resin of glass fiber reinforcement for basis material, high molecular material by mass percentage, increases
The mass content of strong fiber is 20%, and the mass content of fire-retardant and anti-aging auxiliary agent is 18%, and acrylic resin is (i.e. polymer-based
Body) mass content be 62%.After mixing by each component in composite material, after mixing using twin-screw extrusion equipment
It is granulated.
It (2) is planar resonator idiosome knot by PP composite material particle injection molding by the way of injection molding
Structure, wherein injection temperature is 200 DEG C, and mold temperature is 50 DEG C.
(3) after the burr on resonator green structure surface for removing injection molding, using the technique of Immersion Ag, in resonance
Device surface obtains one layer of metal layer that can be conductive, realizes the surface metalation of resonator.
(4) plane with satisfactory electrical conductivity and surface property is obtained after the resonator after Immersion Ag being carried out electroplating gold
Resonator.
(5) planar resonator after electroplating gold is passivated processing, obtains the plating silver layer with good stability.
Through the above steps, planar resonator can be prepared.The machining accuracy of planar resonator can achieve ±
Flatness within the scope of 0.1,10 × 10mm can achieve ± 0.06, and apparent property is good, and the performance that can satisfy filter needs
It asks.
Embodiment 4
The polyphenylene sulfide for selecting particle to enhance is basis material, prepares polymer composite planar resonant by one-step method
Device, the specific process is as follows:
(1) polyphenylene sulfide for selecting particle to enhance is basis material, in high molecular material, by mass percentage, particle
The mass content of filler is 8%, and the gross mass content of fire-retardant and anti-aging auxiliary agent is 2%, and polyphenylene sulfide is (i.e. polymer-based
Body) mass content be 80%.The mass content of reinforcing fiber is 10%.After mixing by each component in composite material, it adopts
It is granulated after mixing with twin-screw extrusion equipment.
(2) by the way of injection molding, polyphenyl thioether composite material particle is pressed and molded as planar resonator idiosome
Structure, wherein the temperature being pressed and molded is 300 DEG C, the pressure of compression molding is 3MPa.
(3) after the burr on resonator green structure surface for removing injection molding, using the technique of electroless copper plating, in resonance
Device surface obtains one layer of metal layer that can be conductive, realizes the surface metalation of resonator.
(4) plane with satisfactory electrical conductivity and surface property is obtained after the resonator after Immersion Ag being carried out electrotinning
Resonator.
(5) planar resonator after electroplating gold is passivated processing, obtains the plating tin layers with good stability.
Through the above steps, planar resonator can be prepared.The machining accuracy of planar resonator can achieve ±
Flatness within the scope of 0.1,10 × 10mm can achieve ± 0.06, and apparent property is good, and the performance that can satisfy filter needs
It asks.
Embodiment 5
It is with the difference of embodiment 4, high molecular material includes macromolecule matrix, reinforcing fiber, filler and auxiliary agent；By matter
Percentage meter is measured, the mass content of macromolecule matrix is 20%, and the mass content of reinforcing fiber is 75%, the mass content of filler
It is 0, the mass content of auxiliary agent is 5%.Wherein, macromolecule matrix is thermoplastic macromolecule material, and reinforcing fiber is glass fibre,
The texture of reinforcing fiber is fibre bundle.
Embodiment 6
It is with the difference of embodiment 4, high molecular material includes macromolecule matrix, reinforcing fiber, filler and auxiliary agent；By matter
Percentage meter is measured, the mass content of macromolecule matrix is 15%, and the mass content of reinforcing fiber is 5%, the mass content of filler
It is 50%, the mass content of auxiliary agent is 30%.Wherein, macromolecule matrix is thermoset macromolecule material, and reinforcing fiber is glass
The mixture of fiber and carbon fiber, the texture of reinforcing fiber are silvalins.
Embodiment 7
It is with the difference of embodiment 4, high molecular material includes macromolecule matrix, reinforcing fiber, filler and auxiliary agent；Its
In, by mass percentage, the mass content of macromolecule matrix is 50%, and the mass content of reinforcing fiber is 19.9%, filler
Mass content be 30%, the mass content of auxiliary agent is 0.1%.Wherein, macromolecule matrix is thermoplastic macromolecule material, enhancing
Fiber is the mixture of metallic fiber and ceramic fibre, and the texture of reinforcing fiber is fiber cloth.
The present invention includes high molecular material design, product structure molding, surface metalation, plating functional layer and surface protection
Treatment process, wherein product structure molding is one step processing or multistep molding.Firstly, according to the performance requirement of resonator,
It designs and selects suitable high molecular material as basis material；Then, it is by suitable technological forming by high molecular material
The green structure of planar resonator, molding, which can be, is first shaped to planar structure, then processes fine structure and constitutes resonator
Green structure is also possible to a step straight forming；Further, resonator green structure is passed through into method surface chemically or physically
Metallization makes its surface obtain electric conductivity；Further, resonator green structure is electroplated to obtain surface conductance of good performance
Layer；Finally, passing through surface protection processing so that overlay coating performance is stablized.Polymer composite plane prepared by the present invention is humorous
Vibration device has the characteristics that lightweight, high flatness, dimensional accuracy are high, performance is stable and low in cost, can be widely used in penetrating
In frequency communication equipment.
Technical solution of the present invention is fully described above, it should be noted that specific embodiment party of the invention
Formula is simultaneously not limited by the description set out above, the Spirit Essence of those skilled in the art according to the present invention structure, method or
All technical solutions that function etc. is formed using equivalents or equivalent transformation, all fall within protection scope of the present invention
Within.
Claims (9)
1. a kind of preparation method of polymer composite planar resonator, which comprises the following steps:
(1) requirement according to planar resonator to thermal expansion coefficient, intensity and thickness selects corresponding high molecular material as base
Body material；
(2) basis material is shaped to planar resonator green structure；
(3) resonator green structure is carried out surface metalation by method chemically or physically makes its surface obtain electric conductivity；
(4) resonator green structure is electroplated to obtain surface conductive layer；
(5) pass through surface protection processing so that overlay coating performance is stablized.
2. a kind of preparation method of polymer composite planar resonator according to claim 1, which is characterized in that high
Molecular material includes macromolecule matrix, reinforcing fiber, filler and auxiliary agent；Wherein, by mass percentage, the matter of macromolecule matrix
Measuring content is 20~80%, and the mass content of reinforcing fiber is 5~75%, and the mass content of filler is 0~50%, the matter of auxiliary agent
Measuring content is 0.1~30%.
3. a kind of preparation method of polymer composite planar resonator according to claim 2, which is characterized in that high
Molecular matrix is thermoplastic macromolecule material or thermoset macromolecule material, and reinforcing fiber is glass fibre, carbon fiber, metal
One of fiber, ceramic fibre are several, and the texture of reinforcing fiber is fiber cloth, fibrofelt, fibre bundle, silvalin
Or chopped strand.
4. a kind of preparation method of polymer composite planar resonator according to claim 1, which is characterized in that flat
Face resonator green structure passes through one-step shaping method or distribution molding method preparation；Wherein, one-step shaping method refer to by molding or
Polymer material molding is planar resonator green structure by the method for person's injection molding；Multistep molding method refers to resonance first
Device is processed as planar structure, and then further retrofit is planar resonator green structure.
5. a kind of preparation method of polymer composite planar resonator according to claim 4, which is characterized in that flat
The processing method of face structure refers to through compression molding, injection molding, extrusion molding, blow molding or calendering formation technique, incites somebody to action
Polymer material molding is planar structure, or by compression molding, injection molding, extrusion molding, blow molding, calendering formation work
The moulding process that two or more mode in skill combines.
6. a kind of preparation method of polymer composite planar resonator, feature exist according to claim 1 or 5
In, by planar structure punching, cutting, turning, engraving, bore mill and/or laser cutting by way of further finish, flat
The connection that can be realized resonance function or interval fine structure are processed in the structure of face.
7. a kind of preparation method of polymer composite planar resonator according to claim 1, which is characterized in that table
Face metallization is using electroless plating method, physical vaporous deposition, chemical vapour deposition technique, spraying conductive layer method, coating or bonding gold
Belong to one of layer or several.
8. a kind of preparation method of polymer composite planar resonator according to claim 1, which is characterized in that table
Face conductive layer is one of silver layer, layer gold, layers of copper, nickel layer, zinc layers, tin layers or several；The thickness range of every kind of coating is
0.1~300 μm.
9. a kind of preparation method of polymer composite planar resonator according to claim 1, which is characterized in that table
Face protection processing is Passivation Treatment and/or Seal treatment.
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| CN111211395A (en) * | 2020-01-20 | 2020-05-29 | 苏州道田新材料科技有限公司 | Preparation method of high-molecular composite material cavity filter |
| CN111253745A (en) * | 2020-01-20 | 2020-06-09 | 苏州道田新材料科技有限公司 | Polymer composite material and preparation method of filter cavity |
| CN111909414A (en) * | 2020-07-22 | 2020-11-10 | 上海阿莱德实业股份有限公司 | Preparation method of high polymer material filter |
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| CN111211395A (en) * | 2020-01-20 | 2020-05-29 | 苏州道田新材料科技有限公司 | Preparation method of high-molecular composite material cavity filter |
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