CN105175768A - Polymer film modified by fluororesin and preparation method thereof - Google Patents
Polymer film modified by fluororesin and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a polymer film modified by fluororesin. The surface-modified polymer film comprises a polymer substrate layer, a transition layer attached to the polymer substrate layer and a fluororesin layer attached to the transition layer; the polymer substrate layer is made of polymers with low surface energy, and the transition layer is made of polymer materials with polar functional groups. Meanwhile, the invention further provides a method for preparing the polymer film. Activating treatment is performed on the polymer film with plasma, the polymer film is coated with a polymer solution with the polar functional groups, dried, coated with the fluororesin, dried and cured, and then the surface-modified polymer film product is obtained. According to the modified film product, pretreatment activation is performed with the air plasma, and co-treatment of the polymer film and the polar coating can achieve industrialized large-area treatment; meanwhile, due to the fact that hydrogen-bond interaction is formed between the polar transition layer and the fluororesin, the bonding force is excellent. In addition, the barrier property (especially the water vapor barrier property) of the modified polymer film is improved.
Description
Technical field
The present invention relates to a kind of method of macromolecule material surface modification, particularly a kind of method improving polymeric film and coating adhesion.
Background technology
Functional polymer thin-film material (as polyethylene, polypropylene, polyester film etc.) of a great variety, snappiness is good, easily process, and has a wide range of applications in fields such as electron device, food product pack, military affairs.These function films are made up of multilayered structure usually, are on polymer film base, to superpose various coating prepare, and the interpolation of coating can give film surface new physics and chemistry character.Such as in polyester film surface applies emulsion, urethane can improve film respectively surface wettability and surface hardness (CN102604523A).But most polymer film surface can be lower, lacks active group, bonding force that cannot be good with various coating formation, have impact on the reliability and stability that function film uses.The method of current raising polymkeric substance sticking power has plasma-activated grafting method (CN1165384C; CN101661962B), irradiation grafting modification method (CN101814534B), paint solidification method (CN1151215C) etc.Although aforesaid method improves the sticking power of substrate and coating to a certain extent, but they have certain defect for modified polymeric films, such as, substrate heat (100 ~ 200 DEG C) and irradiation all can produce polymeric substrates and destroy.In addition, above technical matters more complicated, is not suitable for production application.
Organic fluorine is the macromolecular material of a kind of resistance to chemical attack, water proof anti-soil, ageing-resistant performance excellence, extensive application.Its principal item have this kind of materials such as the multipolymer (F2314) of tetrafluoroethylene (PTFE), voltalef (PCTFE), vinylidene-trifluorochloroethylene, polyvinylidene difluoride (PVDF) (PVDF), ethylene-tetrafluoroethylene copolymer (ETFE), ethylene-trifluoroethylene multipolymer (ECTFE), fluorinated ethylene propylene (PVF) to block water for solar cell backboard, packing film waterproof as coating and solid surface antifouling.But this type coating has less surface energy than conventional coating, more difficult with the bonding of polymeric film.After polymeric film adopts traditional corona, oxygen plasma to carry out surface treatment, still mortise be cannot form with fluor resin coating, widespread use and the popularization of fluor resin coating limited.Therefore, the bonding force that new method improves fluor resin coating and polymer film base is urgently developed.
Summary of the invention
Main purpose of the present invention solves fluor resin coating in the problem of polymeric film surface poor adhesion, provides a kind of surface modifying method of gentleness, improve polymeric film surface.Its ultimate principle utilizes air plasma to carry out pre-treatment and activation to film, introduces oxy radical at polymeric film surface, improves surface polarity, and coating is with opposed polarity functional group (-OH ,-COOH ,-NH further
2) polymkeric substance as tie coat, transition layer with is formed good combination by the substrate activated, the polar group simultaneously on transition layer and form hydrogen bonded between the fluorine atom of fluororesin surface, thus raising fluor resin coating is at the sticking power of polymeric film surface.
In order to realize foregoing invention object, the invention provides following technical scheme:
A polymeric film for surface modification, comprises polymeric substrate layers and transition layer attached thereto, and is attached to the fluororesin layer on transition layer.
The material of described polymeric substrate layers is the polymkeric substance with low surface energy.Surface energy is that upper layer atom is not compensated towards the bond energy of outside because the surface of material has surface tension, makes surperficial particle have extra potential energy than particle in body.Described low surface energy refers to that surface energy is lower than 40J/cm
2polymer materials.Preferably, the polymkeric substance of described low surface energy is polyethylene, polypropylene, polyethylene terephthalate film, Parylene C etc.
Described transition layer is the polymer materials with polar functional group.Described polar functional group is hydroxyl, carboxyl, amino etc., and transition layer can contain one or more polar functional groups.Preferably, described transition layer is one or more in polyacrylic acid (PAA), polyvinyl alcohol (PVA), polymine (PEI), urethane, or more the mixture of composition and Silane coupling agent KH550.There is the transition layer of polymer materials as centre of polar functional group, because polar functional group inherently belongs to highly active group, can easierly be attached on polymeric base material, then the transition layer of these polar functional groups can form hydrogen bonded with fluoro-resin again, improve the bonding strength of fluoro-resin and transition layer, utilize this two dot characteristics the polymkeric substance of low surface energy and fluoro-resin effectively to be combined together.
Described fluororesin layer is the multipolymer (F2314), polyvinylidene difluoride (PVDF) (PVDF), ethylene-tetrafluoroethylene copolymer (ETFE), ethylene-trifluoroethylene multipolymer (ECTFE), fluorinated ethylene propylene (PVF) etc. of tetrafluoroethylene (PTFE), voltalef (PCTFE), vinylidene-trifluorochloroethylene.These fluoro-resin are all the thermoplastic resins containing fluorine atom in molecular structure, have excellent dielectric properties, weathering resistance, flame retardant resistance, are attached to other surface of polymer material, can promote the overall performance of polymer materials fast.
Improve a method for polymer film surface and fluor resin coating sticking power, namely prepare the method for the polymeric film of above-mentioned surface modification, comprise the following steps:
(1) with air plasma process polymeric film, activation treatment is carried out to polymer film surface;
(2) in above-mentioned (1), ready Polymer membrane samples surface-coated one deck has the transition layer solution of polar functional group, dry for standby.Preferably, described drying course sample is placed in baking oven dry.It is hydroxyl, carboxyl, amino (-OH ,-COOH ,-NH that described polar functional group has
2) etc.
(3) sample surfaces handled well in step (2) applies one deck fluororesin solution, dries, and obtains the polymeric film that surface attachment has fluororesin layer.Preferably, dry in an oven, realize the solidification of fluororesin solution on film surface.
Utilized air plasma process polymeric film in the method for the invention before this, utilized the surface of the high-energy particle bombardment polymeric film in air plasma, and its polymer film surface can be raised, improve the difficulty of its other macromolecular material of surface grafting.A certain amount of polar functional group is added through the low surface energy polymeric mould material surface of Cement Composite Treated by Plasma, now apply with the transition layer solution with polar functional group, utilize the interaction between polar functional group, in conjunction with forming firmly syndeton.Then, attracted by transition layer polar functional group and fluoro-resin hydrogen bond each other, reach stable bond and realize the fluororesin modified effect of polymer surfaces.
Further scheme is: also comprise clean before step (1), cleaned by polymer film surface, dry.The dust impurities etc. of cleaning removing surface attachment, improves the surface cleanliness of mould material, reduces the interference of the foreign matter of polymer film surface.Preferably, clean with acetone and/or ethanol.Acetone and ethanol is preferably used to carry out ultrasonic cleaning successively, acetone and ethanol are active lower solvent and not easily cause erosion to polymer film surface, acetone polarity is low good for organic impurity component dissolves, ethanol polarity is high good for hydrophilic impurities component dissolves, uses cleaning performance better successively.
Further scheme is: described polymeric film mainly has the film of the polymer materials of low surface energy, as polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), Parylene C (PC).The polymer materials of low surface energy and the fluororesin binder difficulty of low surface energy, be still difficult to realize firmly combining even if employing corona, oxygen plasma carry out surface treatment.Adopt air plasma of the present invention to activate, after the intermediate layer that coating combines, then to combine with the fluoro-resin of low surface energy, utilize plasma-activated and transition layer to combine the surface modification that perfectly can realize the polymeric film material of low surface energy.
Further scheme is: described low surface energy polymeric, is preferably PC film.PC film is a kind of electronic package material of excellent performance, there is outstanding small molecules barrier property, be often used as protection against the tide, anti-fungus material, its low surface energy limits its surface modification treatment, affects the application in the further lifting of its performance and requirements at the higher level environment for use.Surface property modification is carried out to PC film, effectively can promote the quality of film material.
Further scheme is: in described air plasma treating processes, and the voltage of activation modification is 100-200V, and the time is 30-60s.Air plasma process activation utilizes the plasma body that air is formed under hyperbaric environment to carry out activation treatment, plasma has very high kinetic energy, in air plasma treating processes, the high velocity bombardment such as neutral molecule, charged ion, electronics is at the surface of polymer material of low surface energy, form the group etc. of activation, be convenient to combine with transition layer.
Further scheme is: what apply at the sample surfaces of air plasma activation has polar functional group (-OH ,-COOH ,-NH
2) transition layer solution.There is in the sample surfaces coating through activation treatment the transition layer solution of polar functional group, because sample improves through activation treatment surface energy, uniform solution coatings can be formed, through suitable drying treatment, the uniform buffer layer material of last layer can be adhered at polymer surfaces.Preferably, solute in described transition layer solution is one or more in polyacrylic acid (PAA), polyvinyl alcohol (PVA), polymine (PEI), urethane, or the mixture of mentioned component and Silane coupling agent KH550.Transition layer solution is the homogeneous solution material dissolves of transition layer formed, and solution can apply into transition layer rapidly and uniformly, and coated transition layer, through drying treatment, can obtain colory middle transition Rotating fields.Reliable basic guarantee is provided for polymer surfaces firmly adheres to upper fluoro-resin.
Described Silane coupling agent KH550 chinesization formal name used at school is called: APTES, amido functional group silane, and in alkalescence, outward appearance is colourless or micro-yellow transparent liquid, and degree of activation is high, highly versatile, is dissolved in organic solvent.Structural formula is as follows.
Further scheme is: the concentration of transition layer solution is 10-50mg/mL.Transition layer solution selects the composition of polar group to be easy to the film surface bonding with air plasma activation, then avidity good between the polar group in polarity transition layer material and fluoro-resin is utilized, particularly the adelphotaxy of a large amount of hydrogen bond, improves the stability of modified membrane superficial tissue, fastness properties greatly.Transition layer is its ligation main in centre, and the solution of use should select the solution of concentration 10-50mg/mL, and the transition region thickness after oven dry is suitable for, and bonding strength is excellent.Preferably, the solvent of described transition layer solution is ethanol or dimethyl formamide.The material of transition layer mainly has the component of polymer of a large amount of polar group, time these component of polymer are dissolved in ethanol or dimethylformamide, solute effect is good, and ethanol or dimethyl formamide little for the corrosive nature of polymeric base material as solvent, volatile in drying process, fluor resin coating of the present invention is processed to the action character had rapidly and efficiently.
Further scheme is: described coating method comprises: dip-coating, spraying, roller coat, can be a kind of mode wherein, also can be the connected applications of various ways.Dip-coating, spraying, roller coat all can be good at by be coated there is the transition layer dissolution homogeneity of polar group be coated on polymeric base material, form uniform intermediate solution layer, and coating dissolution homogeneity degree and viscosity be suitable for, not easily flow deformation, can better keep permanent effect in the application.
Further scheme is: transition layer is coated in temperature 50 – 80 DEG C of polymeric film surface post-drying, and the time is 3-30min.Film surface energy through air plasma activation is higher, coating easily combines when having the buffer layer material of polar group, bake out temperature controls within the scope of 50-80 DEG C, and the combination being more conducive to transition layer is firm, prevents the too high side reaction causing other bad of temperature simultaneously.
Foregoing invention method is for improving the sticking power of polymeric film surface and fluor resin coating.
Compared with prior art, beneficial effect of the present invention:
1. a kind of method that the invention provides easy gentleness improves the bonding force of fluoro-resin and polymeric film, is easy to realize industrialization large-area treatment; After compensate for plasma treatment, surface polarity fails rapidly and causes the problem of coating adhesion difference.Owing to can form hydrogen bond action between transition layer and fluoro-resin, bonding force is more excellent.Meanwhile, improve the barrier property of polymeric film, especially to the obstruct of water vapor, there is better effect.
2., relative to other chemical treatment methods, the method adopts physics coating, can not damage damage, can retain the original physicals of film to film itself.
Accompanying drawing illustrates:
Fig. 1: postadhesion power optical picture before modified.Wherein (a) is microgram after PC film surface-coated fluoro-resin healant before modified, and sticking power is 5 grades; (b) be PEI/KH550 to after PC membrane modifying, microgram after its surface-coated fluoro-resin healant, sticking power is 0 grade.
Embodiment
Implement the inventive method concrete scheme:
Improve a method for polymeric film and fluor resin coating sticking power, comprise the following steps: with acetone, ethanol ultrasonic cleaning polymeric film surface successively; With the polymeric film of air plasma process cleaning, activation treatment is carried out to its surface; Above-mentioned activation treatment good sample surfaces spraying or dip-coating one deck there is polar functional group (-OH ,-COOH ,-NH
2) transition layer solution, be placed in baking oven and carry out prebake; Then apply at the sample surfaces that Cement Composite Treated by Plasma is good with in fluororesin solution, after solidifying certain hour in an oven, obtain the flat polymeric film surface with certain sticking power.
Below in conjunction with test example and embodiment, the present invention is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to following embodiment, all technology realized based on content of the present invention all belong to scope of the present invention.
Embodiment 1
By poly monochloro-para-xylylene (thickness 100 μm) air plasma process (100V, 2min), make it surface carry out activation modification after film be placed on and fill dip-coating 1min in PAA solution (10mg/mL), being placed in 80 DEG C of baking ovens, to carry out prebake 3min stand-by; Then prebake sample is placed on dip-coating 1min in the fluororesin solution (50mg/mL) prepared in advance, then solidify 1h in 80 DEG C of baking ovens after, obtains the flat polymeric film surface with certain obstruct steam and sticking power.
Embodiment 2
Poly monochloro-para-xylylene (thickness 100 μm) is put into acetone and ethanol ultrasonic cleaning 10min, 15min successively, dries up with nitrogen.With the polymeric film that air plasma process (150V, 1.5min) is clean, make it surface carry out activation modification after film PEI solution (30mg/mL) spray 1min and be placed in 75 DEG C of baking ovens that to carry out prebake 5min stand-by; Then prebake sample is placed on dip-coating 1min in the fluororesin solution (40mg/mL) prepared in advance, then solidify 1h in 80 DEG C of baking ovens after, obtains the flat polymeric film surface with certain obstruct steam and sticking power.
Embodiment 3
Poly monochloro-para-xylylene (thickness 100 μm) is put into the container ultrasonic cleaning 15min containing acetone and ethanol, dries up with nitrogen.With air plasma process (200V, 1min) clean polymeric film, make it surface carry out activation modification after film be placed on dip-coating 2min in mixing solutions (50mg/mL) container filling PVA and KH550 (ratio is 3:1), being placed in 80 DEG C of baking ovens, to carry out prebake 5min stand-by; Then the prebake sample fluororesin solution (30mg/mL) prepared in advance is sprayed 1min, then solidify 1h in 80 DEG C of baking ovens after, obtain the flat polymeric film surface with certain obstruct steam and sticking power.
Embodiment 4
Poly monochloro-para-xylylene (thickness 100 μm) is put into the container ultrasonic cleaning 15min containing acetone and ethanol, dries up with nitrogen.With air plasma process (100V, 1min) clean polymeric film, make it surface carry out activation modification after film be placed on dip-coating 2min in mixing solutions (10mg/mL) container filling PEI and KH550 (ratio is 3:1), being placed in 70 DEG C of baking ovens, to carry out prebake 4min stand-by; Then prebake sample is placed on dip-coating 1min in the fluororesin solution (50mg/mL) prepared in advance, then solidify 1h in 80 DEG C of baking ovens after, obtains the flat polymeric film surface with certain obstruct steam and sticking power.
Embodiment 5
Poly monochloro-para-xylylene (thickness 100 μm) is put into the container ultrasonic cleaning 15min containing acetone and ethanol, dries up with nitrogen.With air plasma process (150V, 1min) clean polymeric film, make it surface carry out activation modification after film be placed on dip-coating 2min in the solution (10mg/mL) filling PVA, being placed in 75 DEG C of baking ovens, to carry out prebake 5min stand-by; Then the prebake sample fluororesin solution (50mg/mL) prepared in advance is sprayed 1min, then solidify 1h in 80 DEG C of baking ovens after, obtain the flat polymeric film surface with certain obstruct steam and sticking power.
Embodiment 6
Poly monochloro-para-xylylene (thickness 100 μm) is put into the container ultrasonic cleaning 15min containing acetone and ethanol, dries up with nitrogen.With air plasma process (150V, 2min) clean polymeric film, make it surface carry out activation modification after film be placed on dip-coating 1min in the solution (30mg/mL) filling PEI, being placed in 60 DEG C of baking ovens, to carry out prebake 15min stand-by; Then prebake sample is placed on dip-coating 1min in the fluororesin solution (50mg/mL) prepared in advance, then solidify 1h in 80 DEG C of baking ovens after, obtains the flat polymeric film surface with certain obstruct steam and sticking power.
Embodiment 7
Poly monochloro-para-xylylene (thickness 100 μm) is put into the container ultrasonic cleaning 15min containing acetone and ethanol, dries up with nitrogen.With air plasma process (100V, 2min) clean polymeric film, make it surface carry out activation modification after the mixing solutions (10mg/mL) of film PEI and KH550 (ratio is 3:1) spray 2min, being placed in 80 DEG C of baking ovens, to carry out prebake 5min stand-by; Then prebake sample is placed on dip-coating 1min in the fluororesin solution (50mg/mL) prepared in advance, then solidify 1h in 80 DEG C of baking ovens after, obtains the flat polymeric film surface with certain obstruct steam and sticking power.
Embodiment 8
Poly monochloro-para-xylylene (thickness 100 μm) is put into the container ultrasonic cleaning 15min containing acetone and ethanol, dries up with nitrogen.With air plasma process (150V, 1min) clean polymeric film, make it surface carry out activation modification after film be placed on dip-coating 2min in mixing solutions (20mg/mL) container filling PVA and KH550 (ratio is 3:1), being placed in 80 DEG C of baking ovens, to carry out prebake 5min stand-by; Then prebake sample is placed on dip-coating lmin in the fluororesin solution (50mg/mL) prepared in advance, then solidify 1h in 70 DEG C of baking ovens after, obtains the flat polymeric film surface with certain obstruct steam and sticking power.
Embodiment 9
Poly monochloro-para-xylylene (thickness 100 μm) is put into the container ultrasonic cleaning 15min containing acetone and ethanol, dries up with nitrogen.With air plasma process (100V, 2min) clean polymeric film, make it surface carry out activation modification after the mixing solutions (40mg/mL) of film PAA and KH550 (ratio is 3:1) spray 1min, being placed in 80 DEG C of baking ovens, to carry out prebake 10min stand-by; Then prebake sample is placed on dip-coating 1min in the fluororesin solution (50mg/mL) prepared in advance, then solidify 1h in 80 DEG C of baking ovens after, obtains the flat polymeric film surface with certain obstruct steam and sticking power.
Embodiment 10
Poly monochloro-para-xylylene (thickness 100 μm) is put into the container ultrasonic cleaning 15min containing acetone and ethanol, dries up with nitrogen.With air plasma process (150V, 1min) clean polymeric film, make it surface carry out activation modification after film be placed on dip-coating 1min in the solution (20mg/ml) filling urethane, being placed in 70 DEG C of baking ovens, to carry out prebake 15min stand-by; Then prebake sample is placed on dip-coating 1min in the fluororesin solution (50mg/mL) prepared in advance, then solidify 1h in 80 DEG C of baking ovens after, obtains the flat polymeric film surface with certain obstruct steam and sticking power.
Embodiment 11
Poly monochloro-para-xylylene (thickness 100 μm) is put into the container ultrasonic cleaning 15min containing acetone and ethanol, dries up with nitrogen.With air plasma process (150V, 2min) clean polymeric film, make it surface carry out activation modification after film be placed on dip-coating 1min in mixing solutions (30mg/mL) container filling urethane and KH550 (ratio is 3:1), being placed in 80 DEG C of baking ovens, to carry out prebake 10min stand-by; Then the prebake sample fluororesin solution (50mg/mL) prepared in advance is sprayed 1min, then solidify 1h in 80 DEG C of baking ovens after, obtain the flat polymeric film surface with certain obstruct steam and sticking power.
Embodiment 12
Poly monochloro-para-xylylene (thickness 100 μm) is put into the container ultrasonic cleaning 15min containing acetone and ethanol, dries up with nitrogen.With air plasma process (100V, 1min) clean polymeric film, make it surface carry out activation modification after film be placed on dip-coating 1min in the solution (50mg/mL) filling urethane, being placed in 75 DEG C of baking ovens, to carry out prebake 5min stand-by; Then prebake sample is placed on dip-coating 1min in the fluororesin solution (50mg/mL) prepared in advance, then solidify 1h in 80 DEG C of baking ovens after, obtains the flat polymeric film surface with certain obstruct steam and sticking power.
Embodiment 13
Polyethylene terephthalate film (thickness 150 μm) is put into the container ultrasonic cleaning 15min containing acetone and ethanol, dries up with nitrogen.With air plasma process (150V, 2min) clean polymeric film, make it surface carry out activation modification after film be placed on dip-coating 1min in mixing solutions (30mg/mL) container filling PEI and KH550 (ratio is 3:1), being placed in 80 DEG C of baking ovens, to carry out prebake 10min stand-by; Then the prebake sample fluororesin solution (50mg/mL) prepared in advance is sprayed 1min, then solidify 1h in 80 DEG C of baking ovens after, obtain the flat polymeric film surface with certain obstruct steam and sticking power.
Embodiment 14
Polyethylene film (thickness 120 μm) is put into the container ultrasonic cleaning 15min containing acetone and ethanol, dries up with nitrogen.With air plasma process (100V, 1min) clean polymeric film, make it surface carry out activation modification after film be placed on dip-coating 1min in the mixing solutions (50mg/mL) filling PVA and KH550 (3:1), being placed in 75 DEG C of baking ovens, to carry out prebake 5min stand-by; Then prebake sample is placed on dip-coating 1min in the fluororesin solution (50mg/mL) prepared in advance, then solidify 1h in 80 DEG C of baking ovens after, obtains the flat polymeric film surface with certain obstruct steam and sticking power.
Performance evaluation
In order to test the sticking power of sample, all samples tests (hundred lattice methods) result (GB/T9286) and whether (sticking power of coating and substrate is more than or equal to 1 grade and is judged to be up to standard) up to standard is as shown in table 1 below through the sticking power of embodiment 1-12 modification rear film.
Sample tests prepared by each embodiment of table 1
From upper table embodiment 1-14, whether polymeric film surface cleans does not have absolute impact for surface modification.The kind of transition layer and the sticking power size tool of ratio to fluor resin coating have a great impact.Due to can hydrogen bond action be formed between transition layer and fluoro-resin, bonding force more excellent (0 grade can be reached).Meanwhile, improve the barrier property of polymeric film, especially to the obstruct of water vapor, there is better effect.
Claims (10)
1. a polymeric film for surface modification, comprises polymeric substrate layers and transition layer attached thereto, and is attached to the fluororesin layer on transition layer;
The material of described polymeric substrate layers is the polymkeric substance with low surface energy;
Described transition layer is the polymer materials with polar functional group; Described polar functional group is hydroxyl, carboxyl or amino, and transition layer can contain one or more polar functional groups;
Described fluororesin layer is one or more in tetrafluoroethylene, voltalef, the multipolymer of vinylidene-trifluorochloroethylene, polyvinylidene difluoride (PVDF), ethylene-tetrafluoroethylene copolymer, ethylene-trifluoroethylene multipolymer and fluorinated ethylene propylene.
2. the polymeric film of surface modification according to claim 1, is characterized in that, described low surface energy refers to that surface energy is lower than 40J/cm
2polymer materials.
3. the polymeric film of surface modification according to claim 1, is characterized in that, the polymkeric substance of described low surface energy is polyethylene, polypropylene, polyethylene terephthalate film or Parylene C.
4. the polymeric film of surface modification according to claim 1, is characterized in that, described transition layer is one or more in polyacrylic acid, polyvinyl alcohol, polymine and urethane; Or the mixture of above composition and Silane coupling agent KH550.
5. prepare a method for polymeric film described in claim 1, comprise the following steps:
(1) with air plasma process polymeric film, activation treatment is carried out to polymer film surface;
(2) in above-mentioned (1), ready Polymer membrane samples surface-coated one deck has the transition layer solution of polar functional group, dry for standby; It is one or more in hydroxyl, carboxyl or amino that described polar functional group has;
(3) sample surfaces handled well in step (2) applies one deck fluororesin solution, dries, and obtains the polymeric film that surface attachment has fluororesin layer.
6. prepare the method for polymeric film according to claim 5, it is characterized in that, also comprise clean before step (1), polymer film surface is cleaned, dry.
7. prepare the method for polymeric film according to claim 6, it is characterized in that, clean with acetone and/or ethanol.
8. prepare the method for polymeric film according to claim 5, it is characterized in that, in described air plasma treating processes, the voltage of activation modification is 100-200V, and the time is 30-60s.
9. prepare the method for polymeric film according to claim 5, it is characterized in that, at the transition layer solution with polar functional group of the sample surfaces coating of air plasma activation; Solute in described transition layer solution is one or more in polyacrylic acid, polyvinyl alcohol, polymine and urethane; Or the mixture of mentioned component and Silane coupling agent KH550.
10. prepare the method for polymeric film according to claim 5, it is characterized in that, described coating method comprises: dip-coating, spraying, roller coat.
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| CN105949490A (en) * | 2016-05-12 | 2016-09-21 | 株洲时代新材料科技股份有限公司 | Surface treating method for ultra-high molecular weight polyethylene skeleton material for rubber damping products and application |
| CN105949490B (en) * | 2016-05-12 | 2019-04-23 | 株洲时代新材料科技股份有限公司 | The surface treatment method of ultra-high molecular weight polyethylene framework material for rubber damping product and application |
| CN106497175A (en) * | 2016-10-14 | 2017-03-15 | 无锡三帝特种高分子材料有限公司 | A kind of lifting bag film |
| CN107759816A (en) * | 2017-08-31 | 2018-03-06 | 中国石油大学(华东) | A kind of surface treatment method of carbon fibre composite |
| CN107759816B (en) * | 2017-08-31 | 2020-08-28 | 中国石油大学(华东) | Surface treatment method of carbon fiber composite material |
| CN108395561A (en) * | 2018-03-28 | 2018-08-14 | 广东轩朗实业有限公司 | Packaging protection film and preparation method thereof |
| CN109705444A (en) * | 2018-12-19 | 2019-05-03 | 上海同晋环保科技有限公司 | A kind of polyfluoro compounding ETFE film and decorative panel |
| CN110606970A (en) * | 2019-09-30 | 2019-12-24 | 福州大学 | Plastic surface pretreatment method for improving adhesive force between coating and plastic |
| CN114939519A (en) * | 2022-03-22 | 2022-08-26 | 电子科技大学 | Material with super-smooth coating on surface and preparation process and application thereof |
| CN116082687A (en) * | 2022-12-29 | 2023-05-09 | 大连大富塑料彩印有限公司 | Surface treatment method of PET film |
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