CN106084269A - A kind of application type polyimides fluorine 46 thin film improving surface quality and preparation method thereof - Google Patents
A kind of application type polyimides fluorine 46 thin film improving surface quality and preparation method thereof Download PDFInfo
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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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- 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
- 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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- C—CHEMISTRY; METALLURGY
- 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
- C08J2427/00—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 at least one being terminated by a halogen; Derivatives of such polymers
- C08J2427/02—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 at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2427/12—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 at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2427/18—Homopolymers or copolymers of tetrafluoroethylene
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Abstract
A kind of application type polyimides fluorine 46 thin film improving surface quality, including Kapton matrix and the coat of matrix surface, this coat is to concentrate after dispersion liquid that drying, sintering prepare again by being added with the perfluoroethylene-propylene of surfactant in the coating of the single or double of matrix；This surfactant is soluble in perfluoroethylene-propylene and concentrates dispersion liquid；Its preparation method includes: being added to by surfactant in the gluing machine glue groove concentrating dispersion liquid equipped with perfluoroethylene-propylene, stirring is mixed, and stands；Start gluing machine by Kapton matrix by aforementioned perfluoroethylene-propylene concentration dispersion liquid is coated, then be dried successively, sintering, carry out rolling finally by wrap-up, obtain application type polyimides fluorine 46 thin film.The product apparent mass of the present invention is good, the defect such as the most glue-free trace, microgroove, micelle, and production cost is low, and production efficiency significantly improves.
Description
Technical field
The present invention relates to a kind of application type Kapton, particularly relate to a kind of polyamides Asia improving surface quality
Amine-fluorine 46 thin film and preparation method thereof.
Background technology
Kapton refers on main chain containing a base polymer of imide ring, has the mechanical performance of excellence, resistance to
High temperature performance and radiation resistance, and its resistivity is high, dielectric constant is low, thus the widest as protection coverlay and base material
General it is applied to the field such as Aero-Space, microelectronic industry.
Body phase character such as mechanical performance, heat resistance and the electric property of polymer is to determine its serviceability and purposes
Key factor, polymer surfaces directly contacts with environment in numerous applications, therefore its surface characteristic also plays an important role, and therefore gathers
The overall performance of polymer system has substantial connection with its surface or interfacial characteristics.But Kapton smooth surface, chemistry
Surface can be relatively low relatively poor with the adhesive property of substrate interface, it is impossible to self is melted and makes it absolutely with other material bonding
Application in terms of edge structural material is very restricted.
In order to expand Kapton application in insulant industry, generally in Kapton surface-coated
Certain thickness perfluoroethylene-propylene (fluorine 46) concentrates dispersion liquid, and so-called perfluoroethylene-propylene (fluorine 46) concentrates dispersion liquid and refers to
In using nonionic surfactant as the aqueous dispersion liquid of stabilizer, politef obtain with polyhexafluoropropylene copolymerization
Polymer, it has excellent processing characteristics, electrical insulation properties and hot setting adhesive property.Application type polyamides is sub-
Amine-fluorine 46 thin film, is to be concentrated dispersion liquid, through high temperature by Kapton single or double coating perfluoroethylene-propylene (fluorine 46)
Sintering forms.It combines the feature of Kapton and fluoroplastics: high temperature resistant and low temperature, can be-80 DEG C～260 DEG C of temperature
In the range of life-time service；Electrical insulation properties is good, and insulation grade anti-corrosion is H level；At high temperature can be widely used in from fusible envelope
Electromagnetic wire and cable lapped insulation.
Application type polyimide-fluorine 46 thin film, in coat dry run, along with the volatilization of fluorine 46 coating solvents, is being coated with
Producing temperature, density and surface tension between clad surface and inside poor, these differences can make coat internal turbulization fortune
Dynamic, and then cause coating surface to produce Pericarpium Citri Reticulatae and glue trace, also can produce the Levelling defects such as tiny silking during vertical applications simultaneously.
Application type polyimide-fluorine 46 thin film, if there is Levelling defects, not only affects outward appearance, the most also can cause product coat
Discontinuously, thickness deviation is big, electromagnetic wire sintering time laminated film adhesion property inconsistent, and then affect the sealing of electromagnetic wire product
Effect and electrical insulation properties, reduce the service life of motor.
CN1746248A Chinese patent literature discloses preparation method and the equipment of a kind of polyimide-fluorine 46 adhesive tape,
Use scraper to realize the uniformity of coating, but the uniformity using physics mode to improve coating is limited to the precision of cutter
Affect Deng many factors, it is impossible to be enough obviously improved the surface quality of coating, it is impossible to what inherently solution was mentioned above asks
Topic, and be coated layer can accumulate substantial amounts of micelle along with produce, affect the use of application type product.
Therefore, in order to obtain the best effort characteristic of laminated film, it is necessary to make laminated film have good body phase and table
Face overall characteristic.
Summary of the invention
The invention aims to overcome discontinuous, the defect such as thickness deviation is big of coat fluorine 46 in prior art, carry
For application type polyimide-fluorine 46 thin film that a kind of surface quality is improved and preparation method thereof.
For solving above-mentioned technical problem, the technical scheme that the present invention proposes is: a kind of application type improving surface quality gathers
Acid imide-fluorine 46 thin film, including Kapton matrix and the coat of matrix surface, described coat is by matrix
Single or double coating be added with the perfluoroethylene-propylene of surfactant and concentrate after dispersion liquid that drying, sintering are prepared into again
Arrive；Described surfactant is soluble in perfluoroethylene-propylene and concentrates dispersion liquid.
In above-mentioned application type polyimide-fluorine 46 thin film, it is preferred that described surfactant is organosiloxane levelling
The organosiloxane activating agent of agent or modification.It is furthermore preferred that described organosiloxane levelling agent is selected from polydimethylsiloxane, gathers
At least one in methyl phenyl siloxane, the organosiloxane activating agent of described modification selected from alkyl-modified organosiloxane,
At least one in organic silicon modified by polyether oxygen alkane, polyester modified organic siloxane.
Through our experimental studies have found that repeatedly, our preferred surfactant have relatively low surface can, and this
The surface tension of a little preferred surfactants also can concentrate dispersion liquid system by specific perfluoroethylene-propylene less than in the present invention, this
Time, we further find that these preferred surfactants concentrate the limited not phase of dispersion liquid system with perfluoroethylene-propylene
Holding, this further results in during follow-up perfluoroethylene-propylene concentration dispersion layer is dried, in surfactant
Silicone copolymers can migrate to the interface between coat and air, improves the flow leveling concentrating dispersion liquid, and then serves
It is obviously improved the notable technique effect of coat surface quality.
In above-mentioned application type polyimide-fluorine 46 thin film, it is preferred that described perfluoroethylene-propylene concentrates the matter of dispersion liquid
Amount mark is 40%～50%, and described surfactant addition in perfluoroethylene-propylene concentrates dispersion liquid is 0.05wt%
～0.5wt%.
In above-mentioned application type polyimide-fluorine 46 thin film, it is preferred that described application type polyimide-fluorine 46 thin film
Thickness deviation is ± 1 μm.
As total technology design, the present invention also provides for the system of a kind of above-mentioned application type polyimide-fluorine 46 thin film
Preparation Method, comprises the following steps: surfactant adds to the gluing machine glue groove concentrating dispersion liquid equipped with perfluoroethylene-propylene
In, stirring, until mix homogeneously, then stands；Start gluing machine, by Kapton matrix by the poly-perfluor after mixing
Second propylene concentrates in dispersion liquid and is coated, and the Kapton after having coated is dried through gluing machine drying tunnel, then enters
Row sintering, carries out rolling finally by wrap-up, obtains described application type polyimide-fluorine 46 thin film.
In above-mentioned preparation method, it is preferred that described mixing time is 10～30 minutes, time of repose is 10～30 points
Clock.
In above-mentioned preparation method, it is preferred that described Kapton matrix is with the speed of 1.5～2.5 ms/min
Concentrated in dispersion liquid by the perfluoroethylene-propylene after mixing and be coated.This preferred version makes by adding surfactant
Under higher coating speed, polyimide-fluorine 46 thin film that above-mentioned preparation method prepares still is able to obtain good painting
Covering quality, the coating efficiency of equipment can improve 2～3 times.
In above-mentioned preparation method, it is preferred that described dry temperature is 230 DEG C～270 DEG C, and drying time is 2～6 points
Clock；The temperature of described sintering is 310 DEG C～350 DEG C, and sintering time is 2～4 minutes.
Compared with prior art, the beneficial effects of the present invention is:
(1) present invention adds surfactant by concentrating to perfluoroethylene-propylene in dispersion liquid so that the painting prepared
Cover type polyimide-fluorine 46 thin film apparent mass good, without defects such as any glue trace, microgroove, micelles；And the thin film obtained is coated with
Coating thickness is homogeneous, can be reduced to ± 1 μm during thickness deviation optimum by ± 3 μm.
(2) surface of the main chain of currently preferred organosiloxane class surfactant can be low, with the heat of matrix emulsion
Mechanical compatibility is poor, and during perfluoroethylene-propylene concentration dispersion layer is dried, silicone copolymers can migrate to
Interface between coat and air, to improve the flow leveling of perfluoroethylene-propylene concentration dispersion liquid, thus improves coat table
Face quality.
(3) preparation method of the present invention is simple to operate, it is only necessary to add minimal amount of surfactant when emulsion is prepared
Can, the addition in preferred version is only 0.05wt%～0.5wt% of emulsion weight, and addition is few, does not affect dispersion liquid
And the overall performance of thin film.
(4) preparation method of the present invention can make Kapton coating speed by 0.8 m/min the highest bring up to 2.5 meters/
Point, production capacity can improve nearly 212%, thus drastically increases production efficiency, reduces production cost.
Detailed description of the invention
For the ease of understanding the present invention, below in conjunction with specific embodiment, the present invention is made more comprehensively, describes meticulously,
But protection scope of the present invention is not limited to below example.
Embodiment 1:
Application type polyimide-fluorine 46 thin film of a kind of the present embodiment, including Kapton matrix and matrix surface
Coat, coat is to be added with the perfluoroethylene of organic silicon modified by polyether oxygen alkane activating agent by the coating of one side on matrix
After propylene concentration dispersion liquid, drying, sintering prepare again, the thickness deviation of application type polyimide-fluorine 46 thin film obtained
For ± 1 μm.
The preparation method of application type polyimide-fluorine 46 thin film of the present embodiment is as follows: by 10g organic silicon modified by polyether oxygen
Alkane activating agent (preferably Silok2243 Si Luoke Chemical Co., Ltd., lower with, but be not limited to this) add to equipped with the poly-perfluor of 20Kg
Second propylene concentrates in the gluing machine glue groove of dispersion liquid (mass fraction is 50%), stirs 10 minutes mix homogeneously, then stands 10
Minute；Starting gluing machine, arranging gluing machine speed is 0.8 m/min, by Kapton matrix by the poly-perfluor after mixing
Second propylene concentrates in dispersion liquid and carries out one side coating, the Kapton after having coated through gluing machine drying tunnel at 230 DEG C
Being dried 6 minutes, then sinter 4 minutes at 310 DEG C, carry out rolling finally by wrap-up, the application type obtaining the present invention gathers
Acid imide-fluorine 46 thin film.
Embodiment 2
Application type polyimide-fluorine 46 thin film of a kind of the present embodiment, including Kapton matrix and matrix surface
Coat, coat is to be added with the perfluoroethylene-propylene of polydimethylsiloxane activating agent by the coating of one side on matrix
Concentrate after dispersion liquid drying, sintering again to prepare, the thickness deviation of application type polyimide-fluorine 46 thin film obtained for ±
1μm。
The preparation method of application type polyimide-fluorine 46 thin film of the present embodiment is as follows: lived by 20g polydimethylsiloxane
Property agent add to equipped with 20Kg perfluoroethylene-propylene concentrate dispersion liquid (mass fraction is 50%) gluing machine glue groove in, stir 15
Minute mix homogeneously, then stands 10 minutes；Starting gluing machine, arranging gluing machine speed is 1.5 ms/min, and polyimides is thin
Film matrix is concentrated in dispersion liquid by the perfluoroethylene-propylene after mixing and carries out one side coating, and the polyimides after having coated is thin
Film is dried 6 minutes at 245 DEG C through gluing machine drying tunnel, then sinters 2 minutes at 330 DEG C, receives finally by wrap-up
Volume, obtains application type polyimide-fluorine 46 thin film of the present invention.
Embodiment 3
Application type polyimide-fluorine 46 thin film of a kind of the present embodiment, including Kapton matrix and matrix surface
Coat, coat be by one side on matrix coating add PSI activating agent perfluoroethylene-propylene
Concentrate after dispersion liquid drying, sintering again to prepare, the thickness deviation of application type polyimide-fluorine 46 thin film obtained for ±
1μm。
The preparation method of application type polyimide-fluorine 46 thin film of the present embodiment is as follows: by 100g polymethyl-benzene base silica
Alkane activating agent adds in the gluing machine glue groove concentrating dispersion liquid (mass fraction is 50%) equipped with 20Kg perfluoroethylene-propylene, stirs
Mix 30 minutes mix homogeneously, then stand 30 minutes；Starting gluing machine, arranging gluing machine speed is 2 ms/min, by polyimides
Film matrix is concentrated in dispersion liquid by the perfluoroethylene-propylene after mixing and carries out one side coating, the polyimides after having coated
Thin film is dried 2.5 minutes at 260 DEG C through gluing machine drying tunnel, then sinters 1.5 minutes at 340 DEG C, finally by wrap-up
Carry out rolling, obtain application type polyimide-fluorine 46 thin film of the present invention.
Embodiment 4
Application type polyimide-fluorine 46 thin film of a kind of the present embodiment, including Kapton matrix and matrix surface
Coat, coat is to be added with the perfluoroethylene of alkyl-modified organosiloxane activating agent by the coating of one side on matrix
After propylene concentration dispersion liquid, drying, sintering prepare again, the thickness deviation of application type polyimide-fluorine 46 thin film obtained
For ± 1 μm.
The preparation method of application type polyimide-fluorine 46 thin film of the present embodiment is as follows: by alkyl-modified for 100g organosilicon
Oxygen alkane activating agent adds in the gluing machine glue groove concentrating dispersion liquid (mass fraction is 50%) equipped with 20Kg perfluoroethylene-propylene,
Stir 30 minutes mix homogeneously, then stand 30 minutes；Starting gluing machine, arranging gluing machine speed is 2.5 ms/min, by polyamides
Imines film matrix is concentrated in dispersion liquid by the perfluoroethylene-propylene after mixing and carries out one side coating, the polyamides after having coated
Imines thin film is dried 2 minutes at 270 DEG C through gluing machine drying tunnel, then sinters 1.2 minutes at 350 DEG C, fills finally by rolling
Put and carry out rolling, obtain application type polyimide-fluorine 46 thin film of the present invention.
Embodiment 5
Application type polyimide-fluorine 46 thin film of a kind of the present embodiment, including Kapton matrix and matrix surface
Coat, coat is the perfluoroethylene being added with polyester modified organic siloxane activating agent by dual coating on matrix
After propylene concentration dispersion liquid, drying, sintering prepare again, the thickness deviation of application type polyimide-fluorine 46 thin film obtained
For ± 1 μm.
The preparation method of application type polyimide-fluorine 46 thin film of the present embodiment is as follows: by 10g polyester resin change properties of organic silicon oxygen
Alkane activating agent (preferably BD-3310, Bao Er get organosilicon company limited, lower with, but be not limited to this) add to equipped with 20Kg poly-complete
Fluoro ethyl propene concentrates in the gluing machine glue groove of dispersion liquid (mass fraction is 50%), stirs 10 minutes mix homogeneously, then stands
10 minutes；Starting gluing machine, arranging gluing machine speed is 1.0 ms/min, by Kapton matrix by gathering entirely after mixing
Fluoro ethyl propene concentrates in dispersion liquid and carries out dual coating, the Kapton after having coated through gluing machine drying tunnel at 230 DEG C
Under be dried 6 minutes, then at 310 DEG C sinter 4 minutes, carry out rolling finally by wrap-up, obtain the application type of the present invention
Polyimide-fluorine 46 thin film.
Embodiment 6
Application type polyimide-fluorine 46 thin film of a kind of the present embodiment, including Kapton matrix and matrix surface
Coat, coat is to be added with organic silicon modified by polyether oxygen alkane activating agent and polyester modification by dual coating on matrix
After the perfluoroethylene-propylene concentration dispersion liquid of organosiloxane activating agent, drying, sintering prepare again, the application type obtained
The thickness deviation of polyimide-fluorine 46 thin film is ± 1 μm.
The preparation method of application type polyimide-fluorine 46 thin film of the present embodiment is as follows: by 15g organic silicon modified by polyether oxygen
Alkane activating agent and 15g polyester modified organic siloxane activating agent add to equipped with 20Kg perfluoroethylene-propylene concentration dispersion liquid (matter
Amount mark is 50%) gluing machine glue groove in, stir 20 minutes mix homogeneously, then standing 20 minutes；Start gluing machine, arrange
Gluing machine speed is 1.5 ms/min, concentrates in dispersion liquid by the perfluoroethylene-propylene after mixing by Kapton matrix
Row one side coats, and the Kapton after having coated is dried 3 minutes at 245 DEG C through gluing machine drying tunnel, then at 330 DEG C
Sinter 2 minutes, carry out rolling finally by wrap-up, obtain application type polyimide-fluorine 46 thin film of the present invention.
Embodiment 7
Application type polyimide-fluorine 46 thin film of a kind of the present embodiment, including Kapton matrix and matrix surface
Coat, coat is to be added with polydimethylsiloxane and PSI by dual coating on matrix to live
Property agent perfluoroethylene-propylene concentrate after dispersion liquid drying, sintering again and prepare, the application type polyimide-fluorine 46 obtained
The thickness deviation of thin film is ± 1 μm.
The preparation method of application type polyimide-fluorine 46 thin film of the present embodiment is as follows: lived by 50g polydimethylsiloxane
Property agent and 50g PSI activating agent add to equipped with 20Kg perfluoroethylene-propylene concentrate dispersion liquid (mass fraction
Be 50%) gluing machine glue groove in, stir 30 minutes mix homogeneously, then stand 30 minutes；Start gluing machine, gluing machine is set
Speed is 2.5 ms/min, and Kapton matrix is two-sided by carrying out in the perfluoroethylene-propylene concentration dispersion liquid after mixing
Coating, the Kapton after having coated is dried 2 minutes at 270 DEG C through gluing machine drying tunnel, then sinters at 350 DEG C
1.2 minutes, carry out rolling finally by wrap-up, obtain application type polyimide-fluorine 46 thin film of the present invention.
Comparative example 1
The preparation method of application type polyimide-fluorine 46 thin film is as follows: takes 20Kg perfluoroethylene-propylene and concentrates dispersion liquid (matter
Amount mark is 50%) it is placed in gluing machine glue groove, start gluing machine, arranging gluing machine speed is 0.8 m/min, and polyamides is sub-
Amine thin film (thickness deviation is ± 1 μm) is concentrated in dispersion liquid by perfluoroethylene-propylene and carries out one side coating, after having coated
Kapton is dried 6 minutes at 230 DEG C through gluing machine drying tunnel, then sinters 4 minutes at 310 DEG C, finally by rolling
Device carries out rolling, obtains application type polyimide-fluorine 46 thin film.
Comparative example 2
The preparation method of application type polyimide-fluorine 46 thin film is as follows: takes 20Kg perfluoroethylene-propylene and concentrates dispersion liquid (matter
Amount mark is 50%) it is placed in gluing machine glue groove, start gluing machine, arranging gluing machine speed is 0.8 m/min, and polyamides is sub-
Amine thin film (thickness deviation is ± 1 μm) is concentrated in dispersion liquid by perfluoroethylene-propylene and carries out dual coating, after having coated
Kapton is dried 6 minutes at 230 DEG C through gluing machine drying tunnel, then sinters 4 minutes at 310 DEG C, finally by rolling
Device carries out rolling, obtains application type polyimide-fluorine 46 thin film.
Observe embodiment 1～7 and polyimide-fluorine 46 film surface for preparing of comparative example 1～2, testing film
Transverse gage deviation, the method for testing of transverse gage deviation is as follows: the longitudinal direction along thin film takes the batten that 20mm is wide, along horizontal
To the thickness every 20mm testing film, the difference between measured value and desired value is transverse gage deviation, and the data of gained are such as
Shown in table 1.
Table 1 polyimide-fluorine 46 film surface quality and transverse gage deviation log
From the results shown in Table 1, in the case of gluing machine speed is relatively low, with the addition of the poly-of organosiloxane activating agent
The polyimide-fluorine 46 film surface quality that perfluoroethylene-propylene (copolymer) concentration dispersion liquid prepares is good, and the homogeneous deviation of thickness is little, does not has
Occur the Levelling defects such as glue trace, microgroove；Then there is levelling in polyimide-fluorine 46 film surface that customary preparation methods obtains
Defect, thickness deviation is big, and flatness is low.Additionally, in the case of gluing machine speed is higher, with the addition of organosiloxane activating agent
Perfluoroethylene-propylene concentrate dispersion liquid preparation-obtained polyimide-fluorine 46 thin film remain to obtain good surface quality,
The coating efficiency of equipment can improve 2～3 times, thus improves production efficiency.
Claims (9)
1. improve application type polyimide-fluorine 46 thin film for surface quality, including Kapton matrix and matrix table
The coat in face, it is characterised in that described coat is by being added with surfactant in the coating of the single or double of matrix
Perfluoroethylene-propylene concentrate after dispersion liquid that drying, sintering prepare again；Described surfactant is soluble in perfluoroethylene
Propylene concentrates dispersion liquid.
Application type polyimide-fluorine 46 thin film the most according to claim 1, it is characterised in that described surfactant is
The organosiloxane activating agent of organosiloxane levelling agent or modification.
Application type polyimide-fluorine 46 thin film the most according to claim 2, it is characterised in that described organosiloxane stream
At least one in polydimethylsiloxane, PSI of flat agent, the organosiloxane activity of described modification
At least one in alkyl-modified organosiloxane, organic silicon modified by polyether oxygen alkane, polyester modified organic siloxane of agent.
4. according to application type polyimide-fluorine 46 thin film according to any one of claims 1 to 3, it is characterised in that described poly-
It is 40%～50% that perfluoroethylene-propylene (copolymer) concentrates the mass fraction of dispersion liquid, and described surfactant concentrates at perfluoroethylene-propylene and divides
The addition dissipated in liquid is 0.05wt%～0.5wt%.
5. according to application type polyimide-fluorine 46 thin film according to any one of claims 1 to 3, it is characterised in that described painting
The thickness deviation covering type polyimide-fluorine 46 thin film is ± 1 μm.
6. a preparation method for application type polyimide-fluorine 46 thin film as according to any one of Claims 1 to 4, including
Following steps: surfactant is added to equipped with perfluoroethylene-propylene concentrate dispersion liquid gluing machine glue groove in, stirring until
Mix homogeneously, then stands；Start gluing machine, Kapton matrix is concentrated by the perfluoroethylene-propylene after mixing and divides
Dissipating in liquid and be coated, the Kapton after having coated is dried through gluing machine drying tunnel, then is sintered, and finally leads to
Cross wrap-up and carry out rolling, obtain application type polyimide-fluorine 46 thin film.
Preparation method the most according to claim 6, it is characterised in that described mixing time is 10～30 minutes, during standing
Between be 10～30 minutes.
Preparation method the most according to claim 6, it is characterised in that described Kapton matrix is with 1.5～2.5
M/min speed concentrated in dispersion liquid by the perfluoroethylene-propylene after mixing and be coated.
9. according to the preparation method described in claim 6,7 or 8, it is characterised in that described dry temperature is 230 DEG C～270
DEG C, drying time is 2～6 minutes；The temperature of described sintering is 310 DEG C～350 DEG C, and sintering time is 2～4 minutes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439861.9A CN106084269B (en) | 2016-06-20 | 2016-06-20 | A kind of 46 film of application type polyimide-fluorine and preparation method thereof improving surface quality |
Applications Claiming Priority (1)
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| CN201610439861.9A CN106084269B (en) | 2016-06-20 | 2016-06-20 | A kind of 46 film of application type polyimide-fluorine and preparation method thereof improving surface quality |
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| CN109293960A (en) * | 2018-10-24 | 2019-02-01 | 镇江龙成绝缘材料有限公司 | A kind of modified polyimide laminated film and preparation method thereof |
| CN109337108A (en) * | 2018-10-26 | 2019-02-15 | 镇江龙成绝缘材料有限公司 | A kind of polyimides-perfluoroethylene-propylene preparation method of composite film |
| CN110228202A (en) * | 2019-06-14 | 2019-09-13 | 哈尔滨工业大学 | A kind of method of micron order film connection |
| CN111875828A (en) * | 2020-06-01 | 2020-11-03 | 天津大学 | Polymer capacitor film with high breakdown field strength and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109293960A (en) * | 2018-10-24 | 2019-02-01 | 镇江龙成绝缘材料有限公司 | A kind of modified polyimide laminated film and preparation method thereof |
| CN109337108A (en) * | 2018-10-26 | 2019-02-15 | 镇江龙成绝缘材料有限公司 | A kind of polyimides-perfluoroethylene-propylene preparation method of composite film |
| CN110228202A (en) * | 2019-06-14 | 2019-09-13 | 哈尔滨工业大学 | A kind of method of micron order film connection |
| CN111875828A (en) * | 2020-06-01 | 2020-11-03 | 天津大学 | Polymer capacitor film with high breakdown field strength and preparation method thereof |
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| CN106084269B (en) | 2019-06-21 |
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