CN107916400A - A kind of titanium dioxide plastic film and its processing method - Google Patents
A kind of titanium dioxide plastic film and its processing method Download PDFInfo
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- CN107916400A CN107916400A CN201711349122.1A CN201711349122A CN107916400A CN 107916400 A CN107916400 A CN 107916400A CN 201711349122 A CN201711349122 A CN 201711349122A CN 107916400 A CN107916400 A CN 107916400A
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/20—Metallic material, boron or silicon on organic substrates
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
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- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
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- C23C28/3455—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer with a refractory ceramic layer, e.g. refractory metal oxide, ZrO2, rare earth oxides or a thermal barrier system comprising at least one refractory oxide layer
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- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
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Abstract
The invention discloses a kind of titanium dioxide plastic film and its processing method, titanium dioxide plastic film includes macromolecule plastic film, the fine aluminium film layer for being covered in the macromolecule plastic film surface, the aluminum oxide film layer of the loose structure generated by the surface of the fine aluminium film layer by oxidation processes and the titanium oxide film layer for being deposited on the pellumina layer surface.The present invention by setting fine aluminium film layer on a plastic film, and by the aluminum oxide film layer of fine aluminium film layer generation loose structure, transition is carried out with this, so as to form the titanium oxide film layer of nanoscale, loose structure on a plastic film, adhesive force and the preferable titanium dioxide plastic film material of pliability are obtained.
Description
Technical field
The present invention relates to titanium dioxide film materials field, relates in particular to a kind of titanium dioxide plastic film and its adds
Work method.
Background technology
Titanium dioxide film materials can produce strong oxidizing property free radical under the irradiation of ultraviolet light, these Active Radicals Produceds
Energy decomposing organic compounds, have sterilization, automatic cleaning action, while in ultraviolet light, material surface produces super hydrophilic spy
Property.
TiO2Photocatalysis and its crystal habit and particle size have directly related property, with Detitanium-ore-type crystal form, receive
Metrical scale particle best results, Detitanium-ore-type tool photohole potential bigger, oxidisability is stronger, and the particle of nanoscale is because of amount
Sub- effect and skin effect, have the effect for being significantly superior to large scale particle.At the same time it has also been found that titanium deoxid film material
When material surface is loose structure, its film layer can keep super hydrophilic characteristic for a long time, therefore prepare nanoscale, porous, Detitanium-ore-type
Titanium dioxide film materials become industrial hot spot.
The method of synthesis nano-titanium dioxide film is many both at home and abroad at present, mainly has sol-gel process, outside molecular beam
Prolong, chemical vapour deposition technique, spray pyrolysis method, sputtering sedimentation etc..The titanium deoxid film of current most of business is all adopted
Prepared with colloidal sol-glue method.
But the above method is each to have some shortcomings, sol-gel process, molecular beam epitaxy, chemical vapour deposition technique, spraying heat by oneself
The shortcomings that solution is that one is needed in coating process about in 500~600 DEG C of the process for thermally decomposing organic matter, high temperature limitation base
The selectivity of piece material;Sputtering sedimentation especially magnetron sputtering is a kind of new, low-temperature sputter film plating process, prepared by such a method
Film has the advantages that high quality, good associativity and intensity, but because sputter procedure is the deposition process of atom, this process is difficult
To form the loose structure of nanoscale, so titanium deoxid film porosity prepared by the method is low, it is impossible to give full play to dioxy
Change the photocatalysis effect of titanium film.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of with nanoscale, the titanium dioxide film of loose structure
Layer, adhesive force and the preferable titanium dioxide plastic film of pliability and its processing method.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that:A kind of titanium dioxide plastic film, including
Macromolecule plastic film, the fine aluminium film layer for being covered in the macromolecule plastic film surface, the surface warp by the fine aluminium film layer
The aluminum oxide film layer of the loose structure of peroxidating processing generation and the titanium dioxide film for being deposited on the pellumina layer surface
Layer.
Further, the porosity of the aluminum oxide film layer is 60~65%, and aperture is 0.25~0.6 μm.
Further, the thickness of the macromolecule plastic film is 10~80 μm, the thickness of the fine aluminium film layer for 25~
500nm, the thickness of the aluminum oxide film layer is 25~500nm.
The processing method of above-mentioned titanium dioxide plastic film, comprises the following steps:
(1) processing of fine aluminium film layer
For the macromolecule plastic film of polarity, directly fine aluminium film layer is coated on the surface of macromolecule plastic film;
For nonpolar macromolecule plastic film, sided corona treatment is first carried out to the surface of macromolecule plastic film, then
The surface of macromolecule plastic film coats fine aluminium film layer;
(2) processing of aluminum oxide film layer
Using fine aluminium film layer as anode, it is placed in aqueous sulfuric acid, passes to direct current, fine aluminium film layer is carried out at anodic oxidation
Reason, the surface oxidation of fine aluminium film layer is made by electrolysis, generates the aluminum oxide film layer of loose structure;
(3) processing of titanium oxide film layer
In the surface deposition of titanium oxide of aluminum oxide film layer, titanium oxide film layer is made.
In the present invention, macromolecule plastic film generally selects 10~80 μm of thickness, when selecting polar plas film, than
As BOPET, BOPA can directly carry out it is vacuum aluminum-coated, it is pure coating and for the non-polar plastic film such as BOPP, CPP, PE
Need to carry out sided corona treatment to film surface before aluminum membranous layer.
The concrete technology of sided corona treatment is:Platinum profit JBL-1000K corona treatments, which are praised, using Nanjing carries out sided corona treatment, electricity
Dizzy technique uses AC220V (± 20%) stabilized power source, single head or multiple head electrode, and electrode gap control carries out film in 1~2mm
Single or double processing, processing voltage range is between 10000~20000V.The output power range 1000 of corona treatment~
13000VA, 10~25kHz of frequency-tuning range of corona treatment.Non-polar plastic film surface can be made by sided corona treatment
Tension force reaches 38~42dyn/cm or surface free energy reaches 3.8~4.0*10-6J/cm2More than.Sided corona treatment power is to determine
The principal element of degree for the treatment of, processing speed are 25~80m/min, and the material ranges that sided corona treatment is applicable in are wide, available for poly- second
Alkene, polypropylene, polyvinyl chloride, polyamide, polyester, makrolon, fluoroplastics, and various corresponding copolymers etc.;During processing
Between it is short, speed is fast, be adapted to continuous production;And easy to operate, control is easily;Sided corona treatment pertains only to the extremely shallow model of plastic surface layer
Enclose, generally only nanometer scale, have no substantial effect on the mechanical performance of product.
In the present invention, coat fine aluminium film layer and use vacuum evaporation process, i.e., under vacuum, using the method for evaporation
By aluminium lamination direct plating on base film surface in a manner of in-situ deposition.Specific technological process:Base material unreels → vacuumizes →
Heating evaporation boat → send aluminium wire → evaporation → cooling → winding.Width is placed in very for 800~2000mm reel plastic films
In empty room, vacuum 1.3 × 10 is evacuated to-2~1.3 × 10-5Pa, preferably vacuum are not less than 4 × 10-4MPa, by evaporation boat
1300~1400 DEG C of heating, then continuously send the aluminium wire that purity is 99.9% to evaporation boat, and retractable volume speed 200~
350m/min, aluminium wire 0.4~1.0m/min of wire feed rate, open cooling source, operating temperature range -15~35 of cooling system
DEG C, cooling time is less than 25min, aluminium wire continuously melted, evaporated on evaporation boat, and the aluminium atom after evaporation is in polymer plastic
Expect the surface of film, a layer thickness is formed after cooling in 25~500nm fine aluminium film layers.
In the present invention, by anodized, it is 25~500nm that fine aluminium film surface, which can obtain thickness, high porosity,
The water white transparency aluminum oxide film layer of strong adsorption, and pure water cleaning, drying, winding are carried out to the plastic film after processing, so as to
It is as shown in table 1 below in the processing of follow-up titanium oxide film layer, the process conditions of anodized:
The process conditions of 1 anodized of table
Formula and process conditions | Parameter setting |
Decomposition voltage AC (V) | 18~25 |
Aqueous sulfuric acid concentration (g/L) | 180~230g/L |
Electrolyte solution temperature (DEG C) | 10~20 |
Anodic current density (A/dm2) | 0.8~1.5 |
Aluminium ion concentration Al3+ (g/L) | <20 |
Unreel speed (m/min) | 10-50 |
Processing time (min) | 0.5~2 |
Stirring means | Compressed air |
Cathode area/annode area | 1.5:1 |
Drying temperature (DEG C) | 40~60 |
Selection process is as follows:Aqueous sulfuric acid is increased as electrolyte solution, concentration rise, the dissolution velocity of film, film
The speed of growth reduces, and the porosity of film is high, strong adsorption force.Oxidation membrane porosity is can adjust by adjusting sulfuric acid concentration, it is preferably dense
Spend for 20%;Electrolyte temperature influences coating mass very big, temperature rise, the dissolution velocity increasing of film, and thickness reduces.Cause
Aluminum layer thickness is very thin, and to ensure oxidation effectiveness, for preferable temperature when between 10~20 DEG C, the oxide-film generated is porous,
Adsorption capacity is strong;Current density raises, and layer-growth rate can raise, and oxidization time shortens, and the hole of produced film is more, porosity
Height, and hardness and wearability rise, the present invention preferably current density 1.5A/dm2, anodizing process with sulfuric acid as major salt is simple, and solution is steady
It is fixed, it is easy to operate, it is allowed to which that impurity level is wider, and power consumption is few, and cost is low, applied widely.
In the present invention, make titanium oxide film layer and use magnetron sputtering method, magnetron sputtering has low temperature, at a high speed two big spies
Point, is adapted to the sputtering sedimentation TiO on the not high plastic substrate film of temperature tolerance2.Its process is that plastic film coil is put into coiling
In vacuum coating equipment vacuum chamber, with more than 99.5% titanium dioxide titanium target of purity, target chamber is put into, range is adjusted to 60~90mm, takes out
Vacuum is to 2 × 10-4~2 × 10-5Pa, opens radio-frequency power supply, 150~400W of radio-frequency power, 25~35MHz of frequency, is passed through argon
Gas, 20~60mL/min of argon flow amount, adjusting radio-frequency power separates reative cell aura, adjusts gas pressure in vacuum to predetermined value
After 0.2~0.8Pa, sputter coating, TIO are carried out2The deposition of film is 5~10nm/min, and 1~2min of processing time, unreels speed
Spend 0.5~3m/min.
Beneficial effects of the present invention are embodied in:
The present invention by setting fine aluminium film layer on a plastic film, and by the pellumina of fine aluminium film layer generation loose structure
Layer, transition is carried out with this, so as to form the titanium oxide film layer of nanoscale, loose structure on a plastic film, is obtained attached
Put forth effort and the preferable titanium dioxide plastic film material of pliability.
The processing method technique of the present invention is simple, easily implements, and it is 60~65% that can effectively make porosity, and aperture is
0.25~0.6 μm of aluminum oxide film layer, ensures to obtain nanoscale, the titanium oxide film layer of loose structure, has extraordinary
Application prospect.
The present invention is sunk using macromolecule membrane as basement membrane, while using pellumina as nanoscale foraminous die plate
Product TIO2Afterwards, super hydrophilic, the self-cleaning film using titanium dioxide as functional coating, this method tool can be manufactured at low temperature
There is the characteristics of low temperature moulding, nanoporous coating structure, film has that automatically cleaning effect is good, superpower hydrophilic, anti-fog performance.
Embodiment
With reference to embodiment, the invention will be further described:
Various raw materials, are such as not specifically noted used in following embodiments, are commercial product well known in the art.
Embodiment 1
The preparation of titanium dioxide plastic film
Titanium dioxide plastic film includes macromolecule plastic film, is covered in the fine aluminium on the macromolecule plastic film surface
Film layer, pass through the aluminum oxide film layer for the loose structure that oxidation processes generate by the surface of the fine aluminium film layer and be deposited on institute
The titanium oxide film layer of pellumina layer surface is stated, its preparation method comprises the following steps:
(1) processing of fine aluminium film layer
20 μm of thickness, the PE plastic films of width 1000mm are selected, platinum profit JBL-1000K corona treatments are praised using Nanjing
Sided corona treatment is carried out, treatment process uses AC220V (± 20%) constant voltage dc source, 6 tip electrodes, electrode gap 2mm, to thin
Film carries out continuous single side sided corona treatment, and processing voltage range is in 15000V, the output power 6000VA of corona treatment, at corona
The frequency 15kHz of reason machine, processing speed 60m/min, processing rear film surface tension can reach 38mN/m~42mN/m;
PE films after sided corona treatment are placed in sincere CCZK-RC vacuum roll coaters of speeding, using vacuum evaporation process,
Aluminize to PE film coronas face, vacuum chamber is first evacuated to vacuum 5 × 10-4Pa, evaporator temperature are controlled at 1300 DEG C, will
Diameter 2mm, the aluminium wire that purity is 99.9% are continuously sent to evaporation boat, the work of aluminium wire cooling system with the wire feed rate of 0.4m/min
- 10 DEG C of temperature, control PE films retractable volume speed 240m/min, makes aluminium wire continuously melt, evaporate on evaporation boat, in film
Surface forms a layer thickness 300nm fine aluminium film layers;
(2) processing of aluminum oxide film layer
Metallized film is sent into the aqueous sulfuric acid groove of mass fraction 200g/L, passes to 25V direct currents, control electrolyte
15 DEG C of solution temperature, Al3+Ion concentration 10g/L, anodic current density 1.0A/dm2, and compressed air is passed through in a cell,
Oxidation efficiency and uniformity are promoted by air agitation, processing time 10min, obtains 100nm thickness water white transparency aluminum oxide film layers;
The aluminum oxide film layer of acquisition has nano-scale loose structure, and adsorptivity is preferable, this layer of aluminum oxide film layer, which becomes, to be received
Rice TIO2Support template, while on film clarity substantially without influence, after the completion of oxidation processes, using room temperature pure water to film
Cleaned, until electrolyte noresidue, using being wound after 50 DEG C of hot-air seasonings, winds and unreel speed 20m/min;
The porosity of aluminum oxide film layer made from the present embodiment is 63%, and aperture is 0.45 μm;
(3) processing of titanium oxide film layer
Method using smooth vacuum GRJR series roll and vacuum plated film machines by magnetron sputtering plating, in aluminum oxide film layer
Surface depositing Ti O2Film, concrete technology sequence are:TiO is used using shielding power supply2Film radio-frequency power supply, target are empty using DETECH
Between plane magnetic control TiO2Sputtering target, target purity 99.99%, technique and condition are:Vacuum 1.1 × 10-5Pa, radio-frequency power supply work(
Rate 300W, frequency 30MHz, operating air pressure 0.1Pa, magnetic field intensity 120G, argon flow amount 30ml/min, range 80mm, TiO2
The deposition of film is 5nm/min, rolling speed 10m/min, 10~15 DEG C of target cooler-water temperature, hydraulic pressure 2.0 × 105Pa, stream
Measure 20L/min.
Embodiment 2
The preparation of titanium dioxide plastic film
Titanium dioxide plastic film includes macromolecule plastic film, is covered in the fine aluminium on the macromolecule plastic film surface
Film layer, pass through the aluminum oxide film layer for the loose structure that oxidation processes generate by the surface of the fine aluminium film layer and be deposited on institute
The titanium oxide film layer of pellumina layer surface is stated, its preparation method comprises the following steps:
(1) processing of fine aluminium film layer
10 μm of thickness, the BOPET plastic films of width 1000mm are selected, film is placed in sincere CCZK-RC vacuum volume of speeding
Around coating machine, using vacuum evaporation process, aluminize to BOPET Plastic film surfaces, vacuum chamber is first evacuated to vacuum 1.3
×10-2Pa, evaporator temperature are controlled at 1350 DEG C, and diameter 2mm, purity is fast with the wire feed of 0.4m/min for 99.9% aluminium wire
Degree is continuous to be sent to evaporation boat, -10 DEG C of aluminium wire cooling system operating temperature, and control retractable volume speed 350m/min, is steaming aluminium wire
Continuously melt, evaporate on hair boat, a layer thickness 25nm fine aluminium film layers are formed in film surface;
(2) processing of aluminum oxide film layer
Metallized film is sent into the aqueous sulfuric acid groove of mass fraction 180g/L, passes to 18V direct currents, control control electricity
10 DEG C of electrolyte solution temperature, Al3+Ion concentration 10g/L, anodic current density 0.8A/dm2, and it is empty to be passed through compression in a cell
Gas, promotes oxidation efficiency and uniformity, processing time 0.5min, obtains 25nm thickness water white transparency aluminium oxide by air agitation
Film layer, cleans film using room temperature pure water, until electrolyte noresidue, using being wound after 50 DEG C of hot-air seasonings, winds
With unreeling speed 20m/min;
The porosity of aluminum oxide film layer made from the present embodiment is 60%, and aperture is 0.6 μm;
(3) processing of titanium oxide film layer
Method using smooth vacuum GRJR series roll and vacuum plated film machines by magnetron sputtering plating, in aluminum oxide film layer
Surface depositing Ti O2Film, concrete technology sequence are:TiO is used using shielding power supply2Film radio-frequency power supply, target are empty using DETECH
Between plane magnetic control TiO2Sputtering target, target purity 99.6%, technique and condition are:Vacuum 2 × 10-4Pa, radio-frequency power 150W,
Rf frequency 25MHz, magnetic field intensity 120G, argon flow amount 20ml/min, operating air pressure 0.1Pa, range 60mm, TiO2Film
Deposition is 5nm/min, rolling speed 3m/min, 10 DEG C of target cooler-water temperature, flow 20L/min.
Embodiment 3
The preparation of titanium dioxide plastic film
Titanium dioxide plastic film includes macromolecule plastic film, is covered in the fine aluminium on the macromolecule plastic film surface
Film layer, pass through the aluminum oxide film layer for the loose structure that oxidation processes generate by the surface of the fine aluminium film layer and be deposited on institute
The titanium oxide film layer of pellumina layer surface is stated, its preparation method comprises the following steps:
(1) processing of fine aluminium film layer
80 μm of thickness, the BOPP plastic films of width 1000mm are selected, platinum profit JBL-1000K sided corona treatments are praised using Nanjing
Machine carries out sided corona treatment, and treatment process uses AC220V (± 20%) constant voltage dc source, 6 tip electrodes, electrode gap 1mm, right
Film carries out continuous single side sided corona treatment, handles voltage 20000V, the output power 13000VA of corona treatment, output frequency
25kHz, processing speed 80m/min, processing rear film surface tension can reach more than 42mN/m;
BOPP film after sided corona treatment is placed in sincere CCZK-RC vacuum roll coaters of speeding, using vacuum evaporation work
Skill, aluminizes BOPP film corona surface, and vacuum chamber first is evacuated to vacuum 1.3 × 10-5Pa, evaporator temperature control exist
1400 DEG C, diameter 2mm, the aluminium wire that purity is 99.99% are continuously sent to evaporation boat, aluminium wire cooling with the wire feed rate of 1m/min
- 10 DEG C of system operating temperatures, control process speed 200m/min, make aluminium wire continuously melt, evaporate on evaporation boat, in film
Surface forms a layer thickness 500nm fine aluminium film layers;
(2) processing of aluminum oxide film layer
Metallized film is sent into the aqueous sulfuric acid groove of concentration 230g/L, passes to 20V direct currents, control control electrolyte
20 DEG C of solution temperature, Al3+Ion concentration 15g/L, anodic current density 1.5A/dm2, and compressed air is passed through in a cell,
Oxidation efficiency and uniformity are promoted by air agitation, processing time 2min, obtains 500nm thickness water white transparency pelluminas
Layer;Film is cleaned using room temperature pure water, until electrolyte noresidue, using being wound after 50 DEG C of hot-air seasonings, winding with
Unreel speed 20m/min;
The porosity of aluminum oxide film layer made from the present embodiment is 65%, and aperture is 0.25 μm;
(3) processing of titanium oxide film layer
Method using smooth vacuum GRJR series roll and vacuum plated film machines by magnetron sputtering plating, in aluminum oxide film layer
Surface depositing Ti O2Film, concrete technology sequence are:TiO is used using shielding power supply2Film radio-frequency power supply, target are empty using DETECH
Between plane magnetic control TiO2Sputtering target, target purity 99.9%, technique and condition are:Vacuum 2 × 10-5Pa, radio-frequency power 400W,
Rf frequency 35MHz, magnetic field intensity 120G, argon flow amount 60ml/min, operating air pressure 0.2Pa, range 90mm, TiO2Film
Deposition is 10nm/min, rolling speed 3m/min, 10 DEG C of target cooler-water temperature, flow 20L/min.
Embodiment 4
The performance test of titanium dioxide plastic film
Carry out adhesive force test and pliability test, attachment respectively to titanium dioxide plastic film made from embodiment 1 to 3
Force test method is with reference to GB/T 1720-1979 paint film adhesion determination methods;Pliability test method is with reference to GB/T 1731-1993
Paint film flexibility determination method.The result is shown in table 2 below.
Table 2
It can be seen that, it can be seen that titanium dioxide plastic film adhesive force produced by the present invention and pliability tool are preferable.
The present invention prepares TiO2The nanoscale loose structure that plating layer film has, TiO2Nanoscale coating macromolecule is thin
Film can become strong oxidizer under action of ultraviolet light, pass through TiO2Photocatalysis, decomposing organic pollutant, while ultraviolet
Under line effect, its porous surface can obtain long-acting super-hydrophilic property, when dirt is in contact with it, TiO2Trickle dirt is decomposed into
Carbon dioxide and water, because of primary surface Superhydrophilic, can make the moisture of attachment thereon form moisture film and pour in dirt and TiO2Interface,
Make the reduction of dirt, peeled off when by water shower.
At the same time because its super hydrophilicity can regain after being irradiated by ultraviolet, its ultra-hydrophilic surface property has length
Effect property, can use as antifog film, applied to auto mirror, vehicle window pad pasting, by the way that such a hyaline membrane is attached to glass surface
Make its not fogging, bear water drop, keep what comes into a driver's clear.Agriculturally, using its hydrophilic feature with for agricultural greenhouse film, on ceiling
Droplet along canopy face toward flow down, without falling down, can reduce causes crops since the water polo of plastic greenhouse ceiling falls down
Infringement.With for building glass, exterior wall film pasting when, equally with anti-fogging, self-cleaning effect.In terms of traffic, for anti-
Mirror, dial plate are penetrated when pad pasting, can antifog, automatically cleaning.In terms of household electrical appliances, composite material is made as with for household electrical appliances face with steel plate
Panel can be made to obtain easy to clean or self-cleaning characteristic during plate.Application, marine surface paste hydrophilic film in terms of movement under water
After can reduce frictional resistance, some researches show that water-wetted surface can reducing friction resistance 85%-90%.
It should be understood that example as described herein and embodiment are not intended to limit the invention, this area only for explanation
Technical staff can make various modifications or change according to it, within the spirit and principles of the invention, any modification for being made,
Equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of titanium dioxide plastic film, it is characterised in that including macromolecule plastic film, be covered in the high molecule plastic
The fine aluminium film layer of film surface, the pellumina by loose structure of the surface of the fine aluminium film layer by oxidation processes generation
Layer and the titanium oxide film layer for being deposited on the pellumina layer surface.
2. titanium dioxide plastic film as claimed in claim 1, it is characterised in that the porosity of the aluminum oxide film layer is 60
~65%, aperture is 0.25~0.6 μm.
3. titanium dioxide plastic film as claimed in claim 1 or 2, it is characterised in that the thickness of the macromolecule plastic film
Spend for 10~80 μm, the thickness of the fine aluminium film layer is 25~500nm, and the thickness of the aluminum oxide film layer is 25~500nm.
4. the processing method of titanium dioxide plastic film as claimed any one in claims 1 to 3, it is characterised in that including
Following steps:
(1) processing of fine aluminium film layer
For the macromolecule plastic film of polarity, directly fine aluminium film layer is coated on the surface of macromolecule plastic film;
For nonpolar macromolecule plastic film, sided corona treatment first is carried out to the surface of macromolecule plastic film, then in high score
The surface of sub- plastic film coats fine aluminium film layer;
(2) processing of aluminum oxide film layer
Using fine aluminium film layer as anode, it is placed in aqueous sulfuric acid, passes to direct current, anodized is carried out to fine aluminium film layer,
Make the surface oxidation of fine aluminium film layer by electrolysis, generate the aluminum oxide film layer of loose structure;
(3) processing of titanium oxide film layer
In the surface deposition of titanium oxide of aluminum oxide film layer, titanium oxide film layer is made.
5. the processing method of titanium dioxide plastic film as claimed in claim 4, it is characterised in that the work of anodized
Skill condition is:Decomposition voltage AC18~25V, aqueous sulfuric acid 180~230g/L of concentration, 10~20 DEG C of electrolyte solution temperature,
0.8~1.5A/dm of anodic current density2, aluminium ion concentration Al3+<20g/L。
6. the processing method of titanium dioxide plastic film as described in claim 4 or 5, it is characterised in that the work of sided corona treatment
Skill condition is:AC220V (± 20%) stabilized power source, 1~2mm of electrode gap, 10000~20000V of voltage range, sided corona treatment
1000~13000VA of output power range of machine, 10~25kHz of frequency-tuning range of corona treatment.
7. the processing method of titanium dioxide plastic film as described in claim 4 or 5, it is characterised in that coat pure aluminium film
Layer uses vacuum evaporation process, and the process conditions of vacuum evaporation are:Vacuum 1.3 × 10-2~1.3 × 10-5Pa, evaporation boat temperature
1300~1400 DEG C of degree.
8. the processing method of titanium dioxide plastic film as described in claim 4 or 5, it is characterised in that make titanium dioxide
Film layer uses magnetron sputtering technique, and the process conditions of magnetron sputtering are:60~90mm of range, vacuum 2 × 10-4~2 × 10- 5Pa, 150~400W of radio-frequency power, 25~35MHz of frequency, is passed through argon gas, 20~60mL/min of argon flow amount.
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CN101700703A (en) * | 2009-10-30 | 2010-05-05 | 湖州金泰科技股份有限公司 | Chromium-plated plastic product |
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CN101700703A (en) * | 2009-10-30 | 2010-05-05 | 湖州金泰科技股份有限公司 | Chromium-plated plastic product |
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