CN106084269B - A kind of 46 film of application type polyimide-fluorine and preparation method thereof improving surface quality - Google Patents
A kind of 46 film of application type polyimide-fluorine and preparation method thereof improving surface quality 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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- 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
- C09D7/65—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 46 film of application type polyimide-fluorine improving surface quality, coat including Kapton matrix and matrix surface, the coat are by being prepared again through drying, sintering after dispersion liquid is concentrated added with the perfluoroethylene-propylene of surfactant in the coating of the single or double of matrix；The surfactant is soluble in perfluoroethylene-propylene concentration dispersion liquid；Preparation method includes: that surfactant is added in the gluing machine glue groove equipped with perfluoroethylene-propylene concentration dispersion liquid, and stirring is mixed, and is stood；Kapton matrix is concentrated in dispersion liquid by aforementioned perfluoroethylene-propylene and is coated by starting gluing machine, then is successively dried, and is sintered, is wound finally by wrap-up to get 46 film of application type polyimide-fluorine.Product apparent mass of the invention is good, substantially without glue trace, microgroove, micelle the defects of, and production cost is low, and production efficiency significantly improves.
Description
Technical field
The present invention relates to a kind of application type Kapton, more particularly to a kind of polyamides that can improve surface quality are sub-
46 film of amine-fluorine and preparation method thereof.
Background technique
Kapton refers to the quasi polymer on main chain containing imide ring, has excellent mechanical performance, resistance to
High temperature performance and radiation resistance, and its resistivity is high, dielectric constant is low thus wide as protection cover film and substrate
It is general to be applied to the fields such as aerospace, microelectronic industry.
The body phase character of polymer such as mechanical performance, heat resistance and electric property are to determine its service performance and purposes
Key factor, polymer surfaces are directly contacted with environment in numerous applications, therefore its surface characteristic also plays an important role, therefore poly-
The overall performance of polymer system and its surface or interfacial characteristics have substantial connection.However Kapton surface is smooth, chemical
Surface can be lower, relatively poor with the adhesive property of substrate interface, itself can not melt and make it exhausted with other materials bonding
Application in terms of edge structural material is very restricted.
In order to expand application of the Kapton in insulating materials industry, usually coated on Kapton surface
Dispersion liquid is concentrated in certain thickness perfluoroethylene-propylene (fluorine 46), and so-called perfluoroethylene-propylene (fluorine 46) concentration dispersion liquid refers to
In the aqueous dispersion liquid using nonionic surfactant as stabilizer, it is copolymerized to obtain with polyhexafluoropropylene by polytetrafluoroethylene (PTFE)
Polymer, it have excellent processing performance, electrical insulation properties and hot setting adhesive property.Application type polyamides is sub-
46 film of amine-fluorine is by Kapton single or double coating perfluoroethylene-propylene (fluorine 46) concentration dispersion liquid, through high temperature
It is sintered.It combines the characteristics of Kapton and fluoroplastics: high temperature resistant and low temperature, can be in -80 DEG C~260 DEG C temperature
It is used for a long time in range；Electrical insulation properties are good, and insulation grade anti-corrosion is H grades；It can be widely used at high temperature from fusible envelope
Electromagnetic wire and cable lapped insulation.
46 film of application type polyimide-fluorine, with the volatilization of 46 coating solvents of fluorine, is applying in coat drying process
It is poor that temperature, density and surface tension are generated between clad surface and inside, these differences can make to generate turbulent flow fortune inside coat
It is dynamic, and then cause coating surface to generate tangerine peel and glue trace, while can also generate the Levelling defects such as tiny silking when vertical applications.
46 film of application type polyimide-fluorine not only influences appearance if there is Levelling defects, while also will cause product coat
Discontinuously, laminated film adhesion property is inconsistent when thickness deviation is big, electromagnetic wire is sintered, and then influences the sealing of electromagnetic wire product
Effect and electrical insulation properties reduce the service life of motor.
CN1746248A Chinese patent literature discloses the preparation method and equipment of a kind of 46 adhesive tape of polyimide-fluorine,
The uniformity of coating is realized using scraper, but the uniformity for improving coating using physics mode is limited to the precision of cutter
Equal many factors influence, and can not be obviously improved the surface quality of coating, cannot inherently solve to be mentioned above asks
Topic, and as the carry out coat of production can accumulate a large amount of micelle out, influence 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 that there is good body phase and table
Face overall characteristic.
Summary of the invention
The invention aims to overcome coat fluorine 46 in the prior art it is discontinuous, thickness deviation is big the defects of, mention
46 film of application type polyimide-fluorine and preparation method thereof improved for a kind of surface quality.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows: a kind of application type for improving surface quality is poly-
46 film of acid imide-fluorine, the coat including Kapton matrix and matrix surface, the coat is by matrix
Single or double coating added with surfactant perfluoroethylene-propylene concentration dispersion liquid after again through drying, sintering be prepared into
It arrives；The surfactant is soluble in perfluoroethylene-propylene concentration dispersion liquid.
In above-mentioned 46 film of application type polyimide-fluorine, it is preferred that the surfactant is organosiloxane levelling
The organosiloxane activating agent of agent or modification.It is furthermore preferred that the organosiloxane levelling agent is selected from dimethyl silicone polymer, gathers
At least one of methyl phenyl siloxane, the organosiloxane activating agent of the modification be selected from alkyl-modified organosiloxane,
At least one of organic silicon modified by polyether oxygen alkane, polyester modified organic siloxane.
By we repeatedly experimental studies have found that, our preferred surfactants have lower surface can, and this
Also dispersion liquid system can be concentrated lower than perfluoroethylene-propylene specific in the present invention in the surface tension of a little preferred surfactants, this
When, we further have found that the limited not phase of dispersion liquid system is concentrated with perfluoroethylene-propylene in these preferred surfactants
Hold, this is further resulted in during subsequent perfluoroethylene-propylene concentration dispersion layer is dry, in surfactant
Silicone copolymers can be migrated to the interface between coat and air, improve the flow leveling of concentration dispersion liquid, and then be played
It is obviously improved the significant technical effect of coat surface quality.
In above-mentioned 46 film of application type polyimide-fluorine, it is preferred that the matter of the perfluoroethylene-propylene concentration dispersion liquid
Measuring score is 40%~50%, and additive amount of the surfactant in perfluoroethylene-propylene concentration dispersion liquid is 0.05wt%
~0.5wt%.
In above-mentioned 46 film of application type polyimide-fluorine, it is preferred that 46 film of application type polyimide-fluorine
Thickness deviation is ± 1 μm.
As a general technical idea, the present invention also provides a kind of systems of above-mentioned 46 film of application type polyimide-fluorine
Preparation Method, comprising the following steps: surfactant is added to the gluing machine glue groove equipped with perfluoroethylene-propylene concentration dispersion liquid
Interior, stirring is then allowed to stand up to being uniformly mixed；Start gluing machine, Kapton matrix is passed through into the poly- perfluor after mixing
It being coated in second propylene concentration dispersion liquid, the Kapton after the completion of coating is dried through gluing machine drying tunnel, then into
Row sintering, is wound finally by wrap-up to get 46 film of application type polyimide-fluorine.
In above-mentioned preparation method, it is preferred that the mixing time is 10~30 minutes, and time of repose is 10~30 points
Clock.
In above-mentioned preparation method, it is preferred that the Kapton matrix is with 1.5~2.5 ms/min of speed
It is concentrated in dispersion liquid and is coated by the perfluoroethylene-propylene after mixing.The preferred embodiment is made by adding surfactant
Under higher coating speed, 46 film of polyimide-fluorine that above-mentioned preparation method is prepared still is able to obtain good painting
Quality is covered, the coating efficiency of equipment can be improved 2~3 times.
In above-mentioned preparation method, it is preferred that the temperature of the drying is 230 DEG C~270 DEG C, and drying time is 2~6 points
Clock；The temperature of the 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 are:
(1) present invention adds surfactant by being concentrated in dispersion liquid to perfluoroethylene-propylene, so that the painting prepared
Cover that 46 film apparent mass of type polyimide-fluorine is good, the defects of without any glue trace, microgroove, micelle；And obtained film applies
Coating thickness is uniform, can be reduced to ± 1 μm by ± 3 μm when thickness deviation is optimal.
(2) surface of the main chain of currently preferred organosiloxane class surfactant can low, the heat with matrix lotion
Mechanical compatibility is poor, during perfluoroethylene-propylene concentration dispersion layer is dry, silicone copolymers can migrate to
Interface between coat and air, to improve the flow leveling of perfluoroethylene-propylene concentration dispersion liquid, so as to improve coat table
Face quality.
(3) preparation method of the invention is easy to operate, it is only necessary to add minimal amount of surfactant i.e. when lotion is prepared
Can, the additive amount in preferred embodiment is only 0.05wt%~0.5wt% of lotion weight, and additive amount is few, does not influence dispersion liquid
And the overall performance of film.
(4) preparation method of the present invention can make Kapton coating speed by 0.8 m/min of highest be increased to 2.5 meters/
Point, production capacity can be improved nearly 212%, to greatly improve production efficiency, reduce production cost.
Specific embodiment
To facilitate the understanding of the present invention, present invention work more comprehensively, is meticulously described below in conjunction with specific embodiment,
But protection scope of the present invention is not limited to embodiment below.
Embodiment 1:
A kind of 46 film of application type polyimide-fluorine of the present embodiment, including Kapton matrix and matrix surface
Coat, coat be by matrix single side coating be added with organic silicon modified by polyether oxygen alkane activating agent perfluoroethylene
It is prepared again through drying, sintering after propylene concentration dispersion liquid, the thickness deviation of obtained 46 film of application type polyimide-fluorine
It is ± 1 μm.
46 film of application type polyimide-fluorine of the present embodiment the preparation method is as follows: by 10g organic silicon modified by polyether oxygen
Alkane activating agent (preferably Silok2243 Si Luoke Chemical Co., Ltd., similarly hereinafter, but not limited to this) be added to equipped with the poly- perfluor of 20Kg
Second propylene is concentrated in the gluing machine glue groove of dispersion liquid (mass fraction 50%), stirs 10 minutes and is uniformly mixed, is then allowed to stand 10
Minute；Start gluing machine, setting gluing machine speed is 0.8 m/min, and Kapton matrix is passed through the poly- perfluor after mixing
Second propylene, which is concentrated in dispersion liquid, carries out single side coating, and the Kapton after the completion of coating is through gluing machine drying tunnel at 230 DEG C
It is 6 minutes dry, then be sintered 4 minutes at 310 DEG C, it is wound finally by wrap-up poly- to get application type of the invention
46 film of acid imide-fluorine.
Embodiment 2
A kind of 46 film of application type polyimide-fluorine of the present embodiment, including Kapton matrix and matrix surface
Coat, coat be by matrix single side coating be added with dimethyl silicone polymer activating agent perfluoroethylene-propylene
It being prepared again through drying, sintering after concentration dispersion liquid, the thickness deviation of obtained 46 film of application type polyimide-fluorine is ±
1μm。
46 film of application type polyimide-fluorine of the present embodiment the preparation method is as follows: 20g dimethyl silicone polymer is living
Property agent be added to equipped with 20Kg perfluoroethylene-propylene concentration dispersion liquid (mass fraction 50%) gluing machine glue groove in, stirring 15
Minute is uniformly mixed, and is then allowed to stand 10 minutes；Start gluing machine, setting 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 single side coating, and the polyimides after the completion of coating is thin
Film is 6 minutes dry at 245 DEG C through gluing machine drying tunnel, then is sintered 2 minutes at 330 DEG C, is received finally by wrap-up
Volume is to get 46 film of application type polyimide-fluorine of the invention.
Embodiment 3
A kind of 46 film of application type polyimide-fluorine of the present embodiment, including Kapton matrix and matrix surface
Coat, coat be by matrix single side coating addition polymethylphenylsiloxane activating agent perfluoroethylene-propylene
It being prepared again through drying, sintering after concentration dispersion liquid, the thickness deviation of obtained 46 film of application type polyimide-fluorine is ±
1μm。
46 film of application type polyimide-fluorine of the present embodiment the preparation method is as follows: by 100g polymethyl-benzene base silicon oxygen
Alkane activating agent is added in the gluing machine glue groove equipped with 20Kg perfluoroethylene-propylene concentration dispersion liquid (mass fraction 50%), stirs
It mixes 30 minutes and is uniformly mixed, be then allowed to stand 30 minutes；Start gluing machine, setting 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 single side coating, the polyimides after the completion of coating
Film is 2.5 minutes dry at 260 DEG C through gluing machine drying tunnel, then is sintered 1.5 minutes at 340 DEG C, finally by wrap-up
It is wound to get 46 film of application type polyimide-fluorine of the invention.
Embodiment 4
A kind of 46 film of application type polyimide-fluorine of the present embodiment, including Kapton matrix and matrix surface
Coat, coat be by matrix single side coating be added with alkyl-modified organosiloxane activating agent perfluoroethylene
It is prepared again through drying, sintering after propylene concentration dispersion liquid, the thickness deviation of obtained 46 film of application type polyimide-fluorine
It is ± 1 μm.
46 film of application type polyimide-fluorine of the present embodiment the preparation method is as follows: by the alkyl-modified organosilicon of 100g
Oxygen alkane activating agent is added in the gluing machine glue groove equipped with 20Kg perfluoroethylene-propylene concentration dispersion liquid (mass fraction 50%),
It is uniformly mixed within stirring 30 minutes, is then allowed to stand 30 minutes；Start gluing machine, setting 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 single side coating, the polyamides after the completion of coating
Imines film is 2 minutes dry at 270 DEG C through gluing machine drying tunnel, then is sintered 1.2 minutes at 350 DEG C, fills finally by winding
It sets and is wound to get 46 film of application type polyimide-fluorine of the invention.
Embodiment 5
A kind of 46 film of application type polyimide-fluorine of the present embodiment, including Kapton matrix and matrix surface
Coat, coat be by matrix dual coating be added with polyester modified organic siloxane activating agent perfluoroethylene
It is prepared again through drying, sintering after propylene concentration dispersion liquid, the thickness deviation of obtained 46 film of application type polyimide-fluorine
It is ± 1 μm.
46 film of application type polyimide-fluorine of the present embodiment the preparation method is as follows: by 10g polyester resin change properties of organic silicon oxygen
Alkane activating agent (preferably BD-3310, Bao Er get organosilicon Co., Ltd, similarly hereinafter, but not limited to this) be added to and gather entirely equipped with 20Kg
Fluoro ethyl propene is concentrated in the gluing machine glue groove of dispersion liquid (mass fraction 50%), stirs 10 minutes and is uniformly mixed, is then allowed to stand
10 minutes；Start gluing machine, setting gluing machine speed is 1.0 ms/min, Kapton matrix is passed through poly- complete after mixing
Dual coating is carried out in fluoro ethyl propene concentration dispersion liquid, the Kapton after the completion of coating is through gluing machine drying tunnel at 230 DEG C
Lower drying 6 minutes, then be sintered 4 minutes at 310 DEG C, it is wound finally by wrap-up to get application type of the invention
46 film of polyimide-fluorine.
Embodiment 6
A kind of 46 film of application type polyimide-fluorine of the present embodiment, including Kapton matrix and matrix surface
Coat, coat be by matrix dual coating be added with organic silicon modified by polyether oxygen alkane activating agent and polyester modification
It is prepared again through drying, sintering after the perfluoroethylene-propylene concentration dispersion liquid of organosiloxane activating agent, obtained application type
The thickness deviation of 46 film of polyimide-fluorine is ± 1 μm.
46 film of application type polyimide-fluorine of the present embodiment the preparation method is as follows: by 15g organic silicon modified by polyether oxygen
Alkane activating agent and 15g polyester modified organic siloxane activating agent, which are added to, is concentrated dispersion liquid (matter equipped with 20Kg perfluoroethylene-propylene
It measures score to be uniformly mixed in gluing machine glue groove 50%), to stir 20 minutes, be then allowed to stand 20 minutes；Start gluing machine, setting
Gluing machine speed be 1.5 ms/min, by Kapton matrix by mix after perfluoroethylene-propylene be concentrated dispersion liquid in into
The coating of row single side, the Kapton after the completion of coating is 3 minutes dry at 245 DEG C through gluing machine drying tunnel, then at 330 DEG C
Sintering 2 minutes, is wound finally by wrap-up to get 46 film of application type polyimide-fluorine of the invention.
Embodiment 7
A kind of 46 film of application type polyimide-fluorine of the present embodiment, including Kapton matrix and matrix surface
Coat, coat be by matrix dual coating it is living added with dimethyl silicone polymer and polymethylphenylsiloxane
Property agent perfluoroethylene-propylene concentration dispersion liquid after again through drying, sintering be prepared, obtained application type polyimide-fluorine 46
The thickness deviation of film is ± 1 μm.
46 film of application type polyimide-fluorine of the present embodiment the preparation method is as follows: 50g dimethyl silicone polymer is living
Property agent and 50g polymethylphenylsiloxane activating agent be added to equipped with 20Kg perfluoroethylene-propylene be concentrated dispersion liquid (mass fraction
It is uniformly mixed, is then allowed to stand 30 minutes in gluing machine glue groove 50%), to stir 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 the completion of coating is 2 minutes dry at 270 DEG C through gluing machine drying tunnel, then is sintered at 350 DEG C
It 1.2 minutes, is wound finally by wrap-up to get 46 film of application type polyimide-fluorine of the invention.
Comparative example 1
46 film of application type polyimide-fluorine the preparation method is as follows: take 20Kg perfluoroethylene-propylene be concentrated dispersion liquid (matter
Amount score is 50%) to be placed in gluing machine glue groove, starts gluing machine, and setting gluing machine speed is 0.8 m/min, by polyamides Asia
Amine film (thickness deviation is ± 1 μm) is concentrated in dispersion liquid by perfluoroethylene-propylene carries out single side coating, after the completion of coating
Kapton is 6 minutes dry at 230 DEG C through gluing machine drying tunnel, then is sintered 4 minutes at 310 DEG C, finally by winding
Device is wound to get 46 film of application type polyimide-fluorine.
Comparative example 2
46 film of application type polyimide-fluorine the preparation method is as follows: take 20Kg perfluoroethylene-propylene be concentrated dispersion liquid (matter
Amount score is 50%) to be placed in gluing machine glue groove, starts gluing machine, and setting gluing machine speed is 0.8 m/min, by polyamides Asia
Amine film (thickness deviation is ± 1 μm) is concentrated in dispersion liquid by perfluoroethylene-propylene carries out dual coating, after the completion of coating
Kapton is 6 minutes dry at 230 DEG C through gluing machine drying tunnel, then is sintered 4 minutes at 310 DEG C, finally by winding
Device is wound to get 46 film of application type polyimide-fluorine.
46 film surface of polyimide-fluorine that observation Examples 1 to 7 and comparative example 1~2 are prepared, testing film
The test method of transverse gage deviation, transverse gage deviation is as follows: the batten of 20mm wide is taken along the longitudinal direction of film, along cross
To the thickness every 20mm testing film, the difference between measured value and target value is transverse gage deviation, and resulting data are such as
Shown in table 1.
1 polyimide-fluorine of table, 46 film surface quality and transverse gage deviation record sheet
From the results shown in Table 1, in the lower situation of gluing machine speed, it is added to the poly- of organosiloxane activating agent
The 46 film surface quality of polyimide-fluorine that perfluoroethylene-propylene (copolymer) concentration dispersion liquid is prepared is good, and the uniform deviation of thickness is small, does not have
Occur the Levelling defects such as glue trace, microgroove；And then there is levelling in 46 film surface of polyimide-fluorine that customary preparation methods obtain
Defect, thickness deviation is big, and flatness is low.In addition, being added to organosiloxane activating agent in the higher situation of gluing machine speed
Perfluoroethylene-propylene concentration preparation-obtained 46 film of polyimide-fluorine of dispersion liquid remain to obtain good surface quality,
The coating efficiency of equipment can be improved 2~3 times, to improve production efficiency.
Claims (3)
1. a kind of preparation method of 46 film of application type polyimide-fluorine, 46 film of application type polyimide-fluorine includes poly-
The coat of imide membrane matrix and matrix surface, the coat are added with by the single or double coating in matrix
It is prepared again through drying, sintering after the perfluoroethylene-propylene concentration dispersion liquid of surfactant；The surfactant is readily soluble
Dispersion liquid is concentrated in perfluoroethylene-propylene；
The surfactant is the organosiloxane activating agent of organosiloxane levelling agent or modification；The organosiloxane stream
Flat agent is selected from least one of dimethyl silicone polymer, polymethylphenylsiloxane, the organosiloxane activity of the modification
Agent is selected from least one of alkyl-modified organosiloxane, organic silicon modified by polyether oxygen alkane, polyester modified organic siloxane；
The following steps are included: surfactant is added in the gluing machine glue groove equipped with perfluoroethylene-propylene concentration dispersion liquid,
Stirring is then allowed to stand up to being uniformly mixed；Start gluing machine, Kapton matrix is passed through into the perfluoroethylene third after mixing
It is coated in alkene concentration dispersion liquid, the Kapton after the completion of coating is dried through gluing machine drying tunnel, then is burnt
Knot, is wound finally by wrap-up to get 46 film of application type polyimide-fluorine；
The Kapton matrix is to pass through the perfluoroethylene-propylene concentration after mixing with 1.5~2.5 ms/min of speed
It is coated in dispersion liquid；
The thickness deviation of 46 film of application type polyimide-fluorine is ± 1 μm；
The mass fraction of the perfluoroethylene-propylene concentration dispersion liquid is 40%~50%, and the surfactant is in perfluoroethylene
It is 0.05wt%~0.5wt% that the additive amount in dispersion liquid, which is concentrated, in propylene.
2. preparation method according to claim 1, which is characterized in that the mixing time is 10~30 minutes, when standing
Between be 10~30 minutes.
3. preparation method according to claim 1 or 2, which is characterized in that the temperature of the drying is 230 DEG C~270 DEG C,
Drying time is 2~6 minutes；The temperature of the sintering is 310 DEG C~350 DEG C, and sintering time is 2~4 minutes.
Priority Applications (1)
| 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 |
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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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| CN106084269A CN106084269A (en) | 2016-11-09 |
| CN106084269B true CN106084269B (en) | 2019-06-21 |
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| CN201610439861.9A Active 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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| US3770566A (en) * | 1971-06-08 | 1973-11-06 | Du Pont | Interdiffusionally bonded structures of polyimide and fluoropolymer |
| CN1746248A (en) * | 2005-10-13 | 2006-03-15 | 岑建军 | Production and apparatus for polyimide-fluorine 46 adhesive tape |
| CN102229704A (en) * | 2011-05-09 | 2011-11-02 | 宜兴市高拓高分子材料有限公司 | Crystalloid fluorinated ethylene propylene concentrated dispersion |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3770566A (en) * | 1971-06-08 | 1973-11-06 | Du Pont | Interdiffusionally bonded structures of polyimide and fluoropolymer |
| CN1746248A (en) * | 2005-10-13 | 2006-03-15 | 岑建军 | Production and apparatus for polyimide-fluorine 46 adhesive tape |
| CN102229704A (en) * | 2011-05-09 | 2011-11-02 | 宜兴市高拓高分子材料有限公司 | Crystalloid fluorinated ethylene propylene concentrated dispersion |
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