CN105543844A - Preparation method of colorless anti-reflection anti-fingerprint membrane for mobile phone glass panel - Google Patents
Preparation method of colorless anti-reflection anti-fingerprint membrane for mobile phone glass panel Download PDFInfo
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- CN105543844A CN105543844A CN201510929053.6A CN201510929053A CN105543844A CN 105543844 A CN105543844 A CN 105543844A CN 201510929053 A CN201510929053 A CN 201510929053A CN 105543844 A CN105543844 A CN 105543844A
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- C—CHEMISTRY; METALLURGY
- 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
- 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
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D163/10—Epoxy resins modified by unsaturated compounds
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
Abstract
The invention relates to the technical field of plating of a mobile phone glass panel, in particular to a preparation method of a colorless anti-reflection anti-fingerprint membrane for a mobile phone glass panel. The preparation method comprises the following stepsincluding pretreatment: carrying out ultrasonic cleaning on the mobile phone glass printed surface with a cleaning solution; coating a base membrane layer: coating a base membrane layer on the cleaned mobile phone glass printed surface; plating a layer of SiO2 membrane: plating a layer of SiO2 membrane in vacuum on the solidified base membrane surface of the mobile phone glass; plating a TiO2 membrane: plating a layer of TiO2 membrane on the SiO2 membrane; and spraying a UV finishing paint: spraying a highly-transmitting UV finishing paint to the surface of the SiO2 membrane. The obtained mobile phone glass screen is high in transparency and light transmittance, strong in abrasion resistance and good in anti-fingerprint effect.
Description
Technical field
The present invention relates to mobile phone glass panel coating technique field, be specifically related to the preparation method of the colourless anti-reflection anti-fingerprint film of a kind of mobile phone glass panel.
Background technology
Mobile phone glass panel is the key part of mobile communication equipment, and is the parts that whole mobile phone occupies maximum area, and therefore the printing of mobile phone glass panel and coating technique more and more come into one's own.
As mobile phone glass panel, it is not one block of common glass, consider many-sided requirements such as volume, weight, sense of touch and printing opacity, the thickness of mobile phone glass generally all will control between 0.5mm to 2.0mm, and surface must be very smooth bright and clean, light transmission will be got well, overall will have certain toughness, also there will not be slight crack by pressure, and Mohs' hardness at least will at 6 grades or more, so just can guarantee that mobile phone glass has enough surface strengths, wear-resistingly not easily to scratch.
The production of mobile phone glass roughly can be divided into multiple operations such as material cutting, polishing, strengthening, plating, for the mobile phone glass that some are high-end, they are more realize improving on starting material, may difference to some extent in the mode of production, but process is roughly substantially identical.
In order to improve light transmission and the wear resistance of mobile phone glass, can at the surface coating of mobile phone glass, and film coating method the most common be used to be Vacuum Deposition SiO at present
2and TiO
2but, the color component having pressed from both sides impurity can be joined to some extent after plated film, affect transmittance and the transparency of face glass; Current plated film can improve the wear resistance of mobile phone faceplate to a certain extent, but in anti-fingerprint effect, still undesirable, more smooth plane, the more difficult removing of fingerprint.
Summary of the invention
In order to overcome the shortcoming and defect existed in prior art, the object of the present invention is to provide the preparation method of the colourless anti-reflection anti-fingerprint film of a kind of mobile phone glass panel, the transparency of the mobile phone glass screen that it obtains and transparence is high, wear resistance strong, anti-fingerprint is effective.
Object of the present invention is achieved through the following technical solutions:
A preparation method for the colourless anti-reflection anti-fingerprint film of mobile phone glass panel, comprises the following steps:
A: pre-treatment: utilize cleaning liquor that ultrasonic cleaning is carried out on mobile phone glass surface the print surface of mobile phone glass, then dry.
The quality influence of substrate surface performance to plated film of plated film is very big, need to carry out pre-treatment before plated film to the mobile phone glass surface printed, the base material of plated film especially required for the present invention is likely the mobile phone glass panel having printed lines, its substrate surface is one deck ink layer, different with the pretreatment mode of common pure face glass.
Concrete, the aqueous solution of the NaOH utilizing volumetric concentration to be 4-5% drives in the wrong direction to print surface and cleans, then clear water ultrasonic cleaning 15min is used, use pure water rinsing again, be the isopropanol water solution ultrasonic cleaning 2min of 3-5% again by volumetric concentration, finally clean post-flush with ultrasonic pure water, dry up through nitrogen.
Because ink is easily by organic solvent dissolution, therefore main cleansing is the NaOH that with the addition of 4-5%, in conjunction with ultrasonic cleaning, effectively can remove the remaining grease of ink pellet surface and be adsorbed on the small molecule contaminants of ink pellet surface, utilize pure water rinsing, reduce the damage to ink pellet surface, have clean effect simultaneously.The isopropanol water solution ultrasonic cleaning 30s finally utilizing concentration to be 3-5%, further removal is free in the residual ink of ink layer surface, because Virahol and ink have certain reaction, therefore utilize the time of Virahol ultrasonic cleaning short, if but do not use Virahol to clean, the plated film obtained easily comes off, and steadiness is not enough.Finally utilize ultrasonic pure water to clean post-flush, dry up through nitrogen, remove the moisture of ink pellet surface, be convenient to next step bottom membrane coating.
B: be coated with bottom membrane: mobile phone glass printed layers surface coated one deck bottom membrane after cleaning, temperature is 50-60 DEG C, and humidity is 10-15%, and spray gun air pressure is 20-30*10
4pa, thickness is 5-8 μm, and bake out temperature is 70-80 DEG C, and carries out UV ultraviolet light polymerization.
Humidity is higher, and the adsorptive power of ink layer surface is higher, then can adsorb more water moleculess, causes counterdie to whiten and bubbles, therefore need controlling moisture.And temperature improves the favourable condition of the dry and absorption of rete, but too high temperature can affect the stability of ink, and the air pressure of spray gun is excessive, then can spraying uneven, pressure is too small, then easily ink-jet is blocked up, and the present invention is preferably at 20-40*10
4pa, thickness is bottom membrane, and temperature is 50-60 DEG C, and humidity is 10-20%, and spray gun air pressure is 20-40*10
4pa, thickness is 5-8 μm, and improve the hardness of face glass, transparence and transparency, bake out temperature is 70-80 DEG C, and drying efficiency is high.
Further, plated film be the generation being beneficial to nucleus at substrate surface at all, vacuum plating is generally at high temperature force to combine with substrate surface at steamed bun feedstock vapor, if film material is different from the thermal expansivity of substrate surface, can cause between rete and substrate surface can not free-extension, produces thermal stresses.Surface coated one hypoglyph at base material of the present invention, by specifically filling a prescription and component, increasing the thickness of substrate surface, making it and SiO
2thermal expansivity close, reduce the impact of internal stress, improve SiO
2with the bonding force of substrate surface.
Another effect is that the surface after mobile phone faceplate printing is one deck ink layer, and the surface of this ink layer unavoidably there will be some pores or floating-point, and namely the roughness of ink layer surface is excessive, plating SiO
2during film, there will be the problem that plated film is uneven, tight type is inconsistent, increase one deck by the bottom membrane of gloss oil preparative layer, can fill largely and smooth ink layer surface, make the SiO obtained
2rete is uniformity more, and tight type is good.
Concrete, the coating that the bottom membrane in described step B uses is made up of the raw material of following weight part:
UV gloss oil 30-40 part
Silicone coupling agents 3-8 part
Soybean oil modified epoxy acrylic resin 10-20 part
1,2-dichloroethene 2-3 part.
The general form of described silane coupling agent is Y (CH
2) nSiX
3wherein, n=0 ~ 3, X represents the hydrolysable group comprising chloro, methoxyl group, oxyethyl group, methoxy ethoxy or acetoxyl group, and Y represents the organo-functional group comprising vinyl, amino, epoxy group(ing), methacryloxy, sulfydryl or urea groups and can react with resin.The interpolation of silane coupling agent can improve the ink cross-link intensity of bottom membrane paint, improves intensity and the transparence of mobile phone glass panel.
The functionality of described soybean oil modified epoxy acrylic resin is between 4-7, and the bottom membrane sticking power that the soybean oil modified epoxy acrylic resin within the scope of this obtains is good, and its surface is easily by SiO
2film land grow, the SiO obtained
2film compactness is good, and transparence is high, and hardness is high.
C: plate a SiO
2film: the bottom membrane surface vacuum of the mobile phone glass after solidification is plated one deck SiO
2film; Vacuum tightness is 5*10
-3pa, Heating temperature is 150-160 DEG C.
Thickness in described step C is 3-5 μm, and improve transparency and the transparence of rete, rete is too thin, does not have the effect of reinforcing, and rete is too thick, then can reduce transparence and the transparency of protective membrane.In conjunction with bottom membrane ink of the present invention, preferred vacuum tightness is 5*10
-3pa, Heating temperature is 150-160 DEG C, and sedimentation rate is 3000-3500nm/min, the SiO obtained
2film compactness is good, and stability is high, and light transmission is good.
D: plating TiO
2film: at SiO
2film plates one deck TiO
2film, vacuum tightness is 5*10
-3pa, Heating temperature is 150-160 DEG C, and sedimentation rate is 3000-3500nm/min.
Preferably, the thickness in described step D is 3-5 μm.The TiO obtained
2film compactness is good, and stability is high, and light transmission is good, and wear resistance is high.
E, plating secondary SiO
2film: at TiO
2film plates one deck SiO again
2film, vacuum tightness is 5*10
-3pa, Heating temperature is 150-160 DEG C.SiO
2film can improve the transparence of anti-fingerprint film, and preferably its thickness is 3-5 μm, improves the transparence of anti-fingerprint film further.
F: spraying UV finish paint: at SiO
2the surface of film sprays high printing opacity UV finish paint, temperature 45-60 DEG C, humidity is 20-40%, spray gun air pressure is 35-45*10
4pa, thickness is 3-5 μm, and bake out temperature is 70-80 DEG C, carries out UV ultraviolet light polymerization after oven dry, and set time is 30min, at TiO
2film sprays the protection of one deck UV finish paint, strengthen the scratch resistance of mobile phone faceplate further.
Wherein, the UV finish paint in described step F is made up of the component of following weight part:
Polyurethane acrylate resin 10-15 part
Polymethylmethacrylate particulate 0.5-0.8 part
Isobornyl acrylate 20-25 part
Double pentaerythritol methacrylate 15-20 part
Voltalef 0.5-0.8 part
Epoxy propane butyl ether 10-15 part
UV gloss oil 25-30 part
Methyl benzoylformate 5-8 part.
In UV finish paint provided by the invention, containing voltalef, because the electronegativity of fluorine is higher, the singly-bound bond energy that the C-F key in fluoropolymer monomer is formed than carbon atom and other atoms is large, bond distance is short, and difficult decomposition after being heated, resistance toheat is good.In addition, the rigidity of C-F key is strong, the rete obtained can be made to have good hardness, thus have good scratch resistance.Polyurethane acrylate resin adds the flexibility of gained rete, makes rete have good toughness, not easily occurs bubble, slight crack etc.Polyether-modified trisiloxanes compound can reduce the surface tension of rete, and Si-O key has good flexibility, coordinates with the C-F key of rigidity, has good tack, make rete difficult drop-off while rete can be made to have good scratch resistance.UV finish paint of the present invention is anti-scratch effective, and protectiveness is strong, and transmittance is high.UV finish paint of the present invention adds polymethylmethacrylate particulate, can improve the anti-fingerprint effect of anti-fingerprint film.Isobornyl acrylate, double pentaerythritol methacrylate and voltalef effectively can improve hydrophobic oleophobic performance and the surface energy properties on face glass surface, and after coating finish paint, coating surface tension is lower than 30J/m
2, namely the contact angle of water and coating is greater than 90 °, and oil is greater than 60 ° with the contact angle of coating, and coatingsurface has good oil-stain-preventing and cleaning effect, and therefore when fingerprint adheres on glass panels, very easily removed by wiping, anti-fingerprint is effective.
Wherein, the functionality of described polyurethane acrylic resin is between 2-4, and the particle diameter of described polymethylmethacrylate particulate is for being less than 5 μm.Prepare wear resistance and sticking power that finish paint can improve finish paint, and anti-fingerprint is remarkably productive.
Ultraviolet light polymerization parameter in described step B and step F is: ultraviolet wavelength: 250-300nm; Irradiation energy: 1-1.5J/cm.UV ink is mainly by ultraviolet radiation-curable, by the restriction of specific ultraviolet wavelength and irradiation energy, improve the curing performance of UV ink, curing speed directly affects the solidification quality of ink, and curing speed is excessively slow, and the chemical composition of ink easily changes, there is impurity color, set time is too fast, and adherence is not enough, and wear resistance reduces.The UV finish paint sticking power that the present invention obtains is good, and wear resistance is strong, and surfacing is smooth, and anti-fingerprint is remarkably productive.
Beneficial effect of the present invention is: the present invention is by carrying out the operation such as pre-treatment, coating bottom membrane, plated film and coating UV finish paint to the face glass after printing, plated film conservation treatment is carried out to the face glass after printing, pre-treatment improves the sticking power of mobile phone faceplate, improve the quality of plated film, bottom membrane effectively improves hardness and the transparence of mobile phone faceplate; Secondary SiO
2the setting of film, improves the transparence of mobile phone faceplate further, has done specific research and development and restriction to the processing parameter of plated film and the ink formulations of use, makes mobile phone faceplate keep performance originally, improves its high light transmittance and wear resistance.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment, the present invention is further illustrated, and the content that embodiment is mentioned not is limitation of the invention.
Embodiment 1
A preparation method for the colourless anti-reflection anti-fingerprint film of mobile phone glass panel, comprises the following steps:
A: pre-treatment: utilize cleaning liquor that ultrasonic cleaning is carried out on mobile phone glass surface the print surface of mobile phone glass, then dry.
In described pretreatment cleaning step, be specially: utilize volumetric concentration be the NaOH of 4% the aqueous solution drive in the wrong direction clean, then clear water ultrasonic cleaning 15min is used, use pure water rinsing again, be the isopropanol water solution ultrasonic cleaning 30s of 3% again by volumetric concentration, finally clean post-flush with ultrasonic pure water, dry up through nitrogen.
B: be coated with bottom membrane: mobile phone glass printed layers surface coated one deck bottom membrane after cleaning, temperature is 50 DEG C, and humidity is 10%, and spray gun air pressure is 200*10
4pa, thickness is 5 μm, and bake out temperature is 70 DEG C, and carries out UV ultraviolet light polymerization.
The coating that bottom membrane in described step B uses is made up of the raw material of following weight part:
UV gloss oil 30 parts
Silicone coupling agents 3 parts
Soybean oil modified epoxy acrylic resin 10 parts
1,2-dichloroethene 2 parts.
The functionality of described soybean oil modified epoxy acrylic resin is 4.
C: plate a SiO
2film: the bottom membrane surface vacuum of the mobile phone glass after solidification is plated one deck SiO
2film; Vacuum tightness is 5*10
-3pa, Heating temperature is 150 DEG C.SiO in described step C
2the thickness of film is 5 μm, the TiO in described step D
2the thickness of film is 3 μm.
D: plating TiO
2film: at SiO
2film plates one deck TiO
2film, vacuum tightness is 5*10
-3pa, Heating temperature is 150 DEG C.
E, plating secondary SiO
2film: at TiO
2film plates one deck SiO again
2film, vacuum tightness is 5*10
-3pa, Heating temperature is 150 DEG C.SiO in described step e
2the thickness of film is 3 μm.
F: spraying UV finish paint: at SiO
2the surface of film sprays high printing opacity UV finish paint, temperature 45 C, humidity are 20%, and spray gun air pressure is 35*10
4pa, thickness is 3 μm, and bake out temperature is 700 DEG C, carries out UV ultraviolet light polymerization after oven dry, and set time is 30min.
UV finish paint in described step F is made up of the component of following weight part:
Polyurethane acrylate resin 10 parts
Polymethylmethacrylate particulate 0.5 part
Isobornyl acrylate 20 parts
Double pentaerythritol methacrylate 15 parts
Voltalef 0.5 part
Epoxy propane butyl ether 10 parts
UV gloss oil 25 parts
Methyl benzoylformate 5 parts.
The functionality of described polyurethane acrylic resin is 2, and the particle diameter of described polymethylmethacrylate particulate is for being less than 5 μm.
Ultraviolet light polymerization parameter in described step B and step F is: ultraviolet wavelength: 250nm; Irradiation energy: 1J/cm.
Taken out by the mobile phone glass panel prepared, artificial initial survey, then carries out Performance Detection.
Embodiment 2
A preparation method for the colourless anti-reflection anti-fingerprint film of mobile phone glass panel, comprises the following steps:
A: pre-treatment: utilize cleaning liquor that ultrasonic cleaning is carried out on mobile phone glass surface the print surface of mobile phone glass, then dry.
In described pretreatment cleaning step, be specially: utilize volumetric concentration be the NaOH of 5% the aqueous solution drive in the wrong direction clean, then clear water ultrasonic cleaning 15min is used, use pure water rinsing again, be the isopropanol water solution ultrasonic cleaning 30s of 5% again by volumetric concentration, finally clean post-flush with ultrasonic pure water, dry up through nitrogen.
B: be coated with bottom membrane: mobile phone glass printed layers surface coated one deck bottom membrane after cleaning, temperature is 60 DEG C, and humidity is 15%, and spray gun air pressure is 30*10
4pa, thickness is 8 μm, and bake out temperature is 80 DEG C, and carries out UV ultraviolet light polymerization.
The coating that bottom membrane in described step B uses is made up of the raw material of following weight part:
UV gloss oil 40 parts
Silicone coupling agents 8 parts
Soybean oil modified epoxy acrylic resin 20 parts
1,2-dichloroethene 3 parts.
The functionality of described soybean oil modified epoxy acrylic resin is 7.
C: plate a SiO
2film: the bottom membrane surface vacuum of the mobile phone glass after solidification is plated one deck SiO
2film; Vacuum tightness is 5*10
-3pa, Heating temperature is 160 DEG C.SiO in described step C
2the thickness of film is 7 μm, the TiO in described step D
2the thickness of film is 5 μm.
D: plating TiO
2film: at SiO
2film plates one deck TiO
2film, vacuum tightness is 5*10
-3pa, Heating temperature is 160 DEG C.
E, plating secondary SiO
2film: at TiO
2film plates one deck SiO again
2film, vacuum tightness is 5*10
-3pa, Heating temperature is 160 DEG C.SiO in described step e
2the thickness of film is 5 μm.
F: spraying UV finish paint: at SiO
2the surface of film sprays high printing opacity UV finish paint, temperature 60 C, humidity are 40%, and spray gun air pressure is 45*10
4pa, thickness is 5 μm, and bake out temperature is 80 DEG C, carries out UV ultraviolet light polymerization after oven dry, and set time is 30min.
UV finish paint in described step F is made up of the component of following weight part:
Polyurethane acrylate resin 15 parts
Polymethylmethacrylate particulate 0.8 part
Isobornyl acrylate 25 parts
Double pentaerythritol methacrylate 20 parts
Voltalef 0.8 part
Epoxy propane butyl ether 15 parts
UV gloss oil 30 parts
Methyl benzoylformate 8 parts.
The functionality of described polyurethane acrylic resin is 4, and the particle diameter of described polymethylmethacrylate particulate is for being less than 5 μm.
Ultraviolet light polymerization parameter in described step B and step F is: ultraviolet wavelength: 300nm; Irradiation energy: 1.5J/cm.
Taken out by the mobile phone glass panel prepared, artificial initial survey, then carries out Performance Detection.
Embodiment 3
A preparation method for the colourless anti-reflection anti-fingerprint film of mobile phone glass panel, comprises the following steps:
A: pre-treatment: utilize cleaning liquor that ultrasonic cleaning is carried out on mobile phone glass surface the print surface of mobile phone glass, then dry.
In described pretreatment cleaning step, be specially: utilize volumetric concentration be the NaOH of 5% the aqueous solution drive in the wrong direction clean, then clear water ultrasonic cleaning 15min is used, use pure water rinsing again, be the isopropanol water solution ultrasonic cleaning 30s of 3% again by volumetric concentration, finally clean post-flush with ultrasonic pure water, dry up through nitrogen.
B: be coated with bottom membrane: mobile phone glass printed layers surface coated one deck bottom membrane after cleaning, temperature is 55 DEG C, and humidity is 12%, and spray gun air pressure is 25*10
4pa, thickness is 6 μm, and bake out temperature is 75 DEG C, and carries out UV ultraviolet light polymerization.
The coating that bottom membrane in described step B uses is made up of the raw material of following weight part:
UV gloss oil 35 parts
Silicone coupling agents 5 parts
Soybean oil modified epoxy acrylic resin 15 parts
1,2-dichloroethene 2.5 parts.
The functionality of described soybean oil modified epoxy acrylic resin is 5.
C: plate a SiO
2film: the bottom membrane surface vacuum of the mobile phone glass after solidification is plated one deck SiO
2film; Vacuum tightness is 5*10
-3pa, Heating temperature is 155 DEG C.SiO in described step C
2the thickness of film is 6 μm, the TiO in described step D
2the thickness of film is 4 μm.
D: plating TiO
2film: at SiO
2film plates one deck TiO
2film, vacuum tightness is 5*10
-3pa, Heating temperature is 155 DEG C.
E, plating secondary SiO
2film: at TiO
2film plates one deck SiO again
2film, vacuum tightness is 5*10
-3pa, Heating temperature is 155 DEG C.SiO in described step e
2the thickness of film is 4 μm.
F: spraying UV finish paint: at SiO
2the surface of film sprays high printing opacity UV finish paint, temperature 50 C, humidity are 30%, and spray gun air pressure is 40*10
4pa, thickness is 4 μm, and bake out temperature is 75 DEG C, carries out UV ultraviolet light polymerization after oven dry, and set time is 30min.
UV finish paint in described step F is made up of the component of following weight part:
Polyurethane acrylate resin 13 parts
Polymethylmethacrylate particulate 0.6 part
Isobornyl acrylate 23 parts
Double pentaerythritol methacrylate 18 parts
Voltalef 0.6 part
Epoxy propane butyl ether 12 parts
UV gloss oil 27 parts
Methyl benzoylformate 7 parts.
The functionality of described polyurethane acrylic resin is 3, and the particle diameter of described polymethylmethacrylate particulate is for being less than 5 μm.
Ultraviolet light polymerization parameter in described step B and step F is: ultraviolet wavelength: 280nm; Irradiation energy: 1.3J/cm.
Taken out by the mobile phone glass panel prepared, artificial initial survey, then carries out Performance Detection.
Embodiment 4
A preparation method for the colourless anti-reflection anti-fingerprint film of mobile phone glass panel, comprises the following steps:
A: pre-treatment: utilize cleaning liquor that ultrasonic cleaning is carried out on mobile phone glass surface the print surface of mobile phone glass, then dry.
In described pretreatment cleaning step, be specially: utilize volumetric concentration be the NaOH of 4% the aqueous solution drive in the wrong direction clean, then clear water ultrasonic cleaning 15min is used, use pure water rinsing again, be the isopropanol water solution ultrasonic cleaning 30s of 5% again by volumetric concentration, finally clean post-flush with ultrasonic pure water, dry up through nitrogen.
B: be coated with bottom membrane: mobile phone glass printed layers surface coated one deck bottom membrane after cleaning, temperature is 60 DEG C, and humidity is 10%, and spray gun air pressure is 20*10
4pa, thickness is 8 μm, and bake out temperature is 70-80 DEG C, and carries out UV ultraviolet light polymerization.
The coating that bottom membrane in described step B uses is made up of the raw material of following weight part:
UV gloss oil 40 parts
Silicone coupling agents 3 parts
Soybean oil modified epoxy acrylic resin 20 parts
1,2-dichloroethene 3 parts.
The functionality of described soybean oil modified epoxy acrylic resin is 7.
C: plate a SiO
2film: the bottom membrane surface vacuum of the mobile phone glass after solidification is plated one deck SiO
2film; Vacuum tightness is 5*10
-3pa, Heating temperature is 150 DEG C.SiO in described step C
2the thickness of film is 7 μm, the TiO in described step D
2the thickness of film is 5 μm.
D: plating TiO
2film: at SiO
2film plates one deck TiO
2film, vacuum tightness is 5*10
-3pa, Heating temperature is 150 DEG C.
E, plating secondary SiO
2film: at TiO
2film plates one deck SiO again
2film, vacuum tightness is 5*10
-3pa, Heating temperature is 160 DEG C.SiO in described step e
2the thickness of film is 5 μm.
F: spraying UV finish paint: at SiO
2the surface of film sprays high printing opacity UV finish paint, temperature 45 C, humidity are 20%, and spray gun air pressure is 35*10
4pa, thickness is 5 μm, and bake out temperature is 70 DEG C, carries out UV ultraviolet light polymerization after oven dry, and set time is 30min.
UV finish paint in described step F is made up of the component of following weight part:
Polyurethane acrylate resin 15 parts
Polymethylmethacrylate particulate 0.8 part
Isobornyl acrylate 20 parts
Double pentaerythritol methacrylate 20 parts
Voltalef 0.5 part
Epoxy propane butyl ether 15 parts
UV gloss oil 25 parts
Methyl benzoylformate 8 parts.
The functionality of described polyurethane acrylic resin is 4, and the particle diameter of described polymethylmethacrylate particulate is for being less than 5 μm.
Ultraviolet light polymerization parameter in described step B and step F is: ultraviolet wavelength: 300nm; Irradiation energy: 1.5J/cm.
Performance test
(1) pencil hardness test reference standard GB/T6739-1996 tests hardness of film.
(2) sticking power test reference standard GB/T6739-1998 cross-hatching measures the sticking power of base material coating film, and sticking power is divided into 0,1,2,3,4,5 five grade.
(3) glossiness test vancometer measures the glossiness of coating.
(4) anti-scratch performance is by the face glass horizontal positioned after film, will be added with certain mass counterweight (sand face is towards sample) and streak from surface uniform, to occur that the minimum mass of obvious cut represents the anti-scratch performance of the mobile phone faceplate of coating.
(5) anti-fingerprint performance test marking pen is marked on panel, and then the remaining marking is observed in wiping.Anti-fingerprint pointed by the present invention is effective, and refers to that fingerprint does not go up, but is only easily removed by wiping.
(6) light transmittance tester ASTMD1003 standard testing
Concrete test result is as shown in the table:
As can be seen from above-mentioned form, after mobile phone faceplate plated film of the present invention, sticking power is good, hardness is strong, good transmittance, and scrath resistance is strong, and anti-fingerprint is remarkably productive.
Above-described embodiment is the present invention's preferably implementation, and in addition, the present invention can also realize by alternate manner, and any apparent replacement is all within protection scope of the present invention without departing from the inventive concept of the premise.
Claims (10)
1. a preparation method for the colourless anti-reflection anti-fingerprint film of mobile phone glass panel, is characterized in that: comprise the following steps:
A: pre-treatment: utilize cleaning liquor to carry out ultrasonic cleaning to mobile phone glass surface the print surface of mobile phone glass, then dry;
B: be coated with bottom membrane: mobile phone glass print surface is after cleaning coated with one deck bottom membrane, and temperature is 50-60 DEG C, and humidity is 10-15%, and spray gun air pressure is 20-30*10
4pa, thickness is 5-8 μm, and bake out temperature is 70-80 DEG C, and carries out UV ultraviolet light polymerization;
C: plate a SiO
2film: the bottom membrane surface vacuum of the mobile phone glass after solidification is plated one deck SiO
2film; Vacuum tightness is 5*10
-3pa, Heating temperature is 150-160 DEG C;
D: plating TiO
2film: at SiO
2film plates one deck TiO
2film, vacuum tightness is 5*10
-3pa, Heating temperature is 150-160 DEG C;
E, plating secondary SiO
2film: at TiO
2film plates second layer SiO
2film, vacuum tightness is 5*10
-3pa, Heating temperature is 150-160 DEG C;
F: spraying UV finish paint: at second layer SiO
2the surface of film sprays high printing opacity UV finish paint, temperature 45-60 DEG C, humidity is 20-40%, spray gun air pressure is 35-45*10
4pa, SiO
2thickness is 3-5 μm, and bake out temperature is 70-80 DEG C, carries out UV ultraviolet light polymerization after oven dry, and set time is 30min.
2. the preparation method of the colourless anti-reflection anti-fingerprint film of a kind of mobile phone glass panel according to claim 1, it is characterized in that: in described pre-treatment step, be specially: the aqueous solution of the NaOH utilizing volumetric concentration to be 4-5% is cleaned, then clear water ultrasonic cleaning 15min is used, use pure water rinsing again, be the isopropanol water solution ultrasonic cleaning 30s of 3-5% again by volumetric concentration, finally clean post-flush with ultrasonic pure water, dry up through nitrogen.
3. the preparation method of the colourless anti-reflection anti-fingerprint film of a kind of mobile phone glass panel according to claim 1, is characterized in that: the SiO in described step C
2the thickness of film is 5-7 μm, the TiO in described step D
2the thickness of film is 3-5 μm.
4. the preparation method of the colourless anti-reflection anti-fingerprint film of a kind of mobile phone glass panel according to claim 1, is characterized in that: second layer SiO in described step e
2the thickness of film is 3-5 μm.
5. the preparation method of the colourless anti-reflection anti-fingerprint film of a kind of mobile phone glass panel according to claim 1, is characterized in that: the coating that the bottom membrane in described step B uses is made up of the raw material of following weight part:
UV gloss oil 30-40 part
Silicone coupling agents 3-8 part
Soybean oil modified epoxy acrylic resin 10-20 part
1,2-dichloroethene 2-3 part.
6. the preparation method of the colourless anti-reflection anti-fingerprint film of a kind of mobile phone glass panel according to claim 5, is characterized in that: the general formula of described silane coupling agent is Y (CH
2) nSiX
3wherein, n=0 ~ 3, X represents the hydrolysable group comprising chloro, methoxyl group, oxyethyl group, methoxy ethoxy or acetoxyl group, and Y represents the organo-functional group comprising vinyl, amino, epoxy group(ing), methacryloxy, sulfydryl or urea groups and can react with resin.
7. the preparation method of the colourless anti-reflection anti-fingerprint film of a kind of mobile phone glass panel according to claim 5, is characterized in that: the functionality of described soybean oil modified epoxy acrylic resin is between 4-7.
8. the preparation method of the colourless anti-reflection anti-fingerprint film of a kind of mobile phone glass panel according to claim 1, is characterized in that: the UV finish paint in described step F is made up of the component of following weight part:
Polyurethane acrylate resin 10-15 part
Polymethylmethacrylate particulate 0.5-0.8 part
Isobornyl acrylate 20-25 part
Double pentaerythritol methacrylate 15-20 part
Voltalef 0.5-0.8 part
Epoxy propane butyl ether 10-15 part
UV gloss oil 25-30 part
Methyl benzoylformate 5-8 part.
9. the preparation method of the colourless anti-reflection anti-fingerprint film of a kind of mobile phone glass panel according to claim 8, is characterized in that: the functionality of described polyurethane acrylic resin is between 2-4, and the particle diameter of described polymethylmethacrylate particulate is for being less than 5 μm.
10. the preparation method of the colourless anti-reflection anti-fingerprint film of a kind of mobile phone glass panel according to claim 1, is characterized in that: the ultraviolet light polymerization parameter in described step B and step F is: ultraviolet wavelength: 250-300nm; Irradiation energy: 1-1.5J/cm.
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| CN110434038A (en) * | 2019-08-03 | 2019-11-12 | 协荣精密器件(东莞)有限公司 | A kind of coating process of mobile phone glass dorsal shield |
| CN110757975A (en) * | 2019-11-07 | 2020-02-07 | 洪泽双友玻璃制品有限公司 | Printing process not easy to wipe for glass products |
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