CN112391073A - Antibacterial tempered film - Google Patents
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- CN112391073A CN112391073A CN202011148847.6A CN202011148847A CN112391073A CN 112391073 A CN112391073 A CN 112391073A CN 202011148847 A CN202011148847 A CN 202011148847A CN 112391073 A CN112391073 A CN 112391073A
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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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
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- C09D201/00—Coating compositions based on unspecified macromolecular compounds
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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
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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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
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
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Abstract
The application relates to the field of screen protection films, and particularly discloses an antibacterial tempered film. The antibacterial tempered film comprises a tempered film body and an antibacterial coating located on one side, away from the screen, of the tempered film body; the antibacterial coating adopted by the antibacterial coating is prepared from the following raw materials of glass resin, modified nano titanium dioxide, a curing agent and the like: the preparation method of the modified nano titanium dioxide comprises the following steps: s1: soaking nano graphene oxide in the volatile oil, ultrasonically vibrating, taking out, and naturally airing to obtain modified nano graphene oxide; s2: uniformly mixing nano silicon dioxide, nano titanium dioxide and modified nano graphene oxide, and performing ball milling for 1-4h to obtain a mixture A; s3: and adding the mixture A into a hydrogen peroxide solution with the mass concentration of 10-20%, ultrasonically vibrating, filtering, and freeze-drying to obtain the modified nano titanium dioxide. The antibacterial rate of the antibacterial tempered film in a visible light environment reaches more than 70%.
Description
Technical Field
The present application relates to the field of screen protection films, and more particularly, to an antibacterial tempered film.
Background
There are two common screen protective films, one of which is a water-condensation film and the other of which is a tempered film. The hydrogel film is a soft film, is made of a layer of thermoplastic polyurethane elastomer rubber or polyethylene terephthalate, can protect a screen, and is not resistant to falling. The material of tempering membrane is one deck organic glass, not only can protect the screen, can also overcome the not resistant shortcoming that falls of water-binding film. Therefore, the toughened film becomes a common protective film for mobile phones, tablet computers and the like at present.
However, the mobile phone, the tablet personal computer and the like are daily articles, and when people use the mobile phone or the tablet personal computer, people inevitably touch the surface of the toughened film frequently, so that fingerprints or oil stains are left on the surface of the toughened film, bacteria are easily bred on the surface of the toughened film, and health hazards are brought to users.
In order to solve the problem, in the related art, part of people spray an antibacterial coating on the side of the tempered film, which is far away from the screen, and the antibacterial coating is formed in the following manner: is prepared from glass resin and nano TiO2TiO 2 nanoparticles2-Ag, nano TiO2-Cu2And uniformly dispersing the O and 650 low-molecular polyamide under an ultrasonic condition to prepare a coating, and then plating the coating on the surface of the toughened film, which is far away from the screen, by adopting a vacuum sputtering coating method to form the antibacterial coating.
Through detection, the toughened film plated with the antibacterial coating can achieve a good antibacterial effect under the irradiation of ultraviolet light, however, the proportion of the ultraviolet light in sunlight irradiating the earth surface is lower than 5%. Therefore, in order to more fully utilize inexpensive green sunlight, it is necessary to provide a tempered film that can exhibit an antibacterial effect in visible light.
Disclosure of Invention
In order to improve the antibacterial effect of the toughened film in the visible light environment, the application provides an antibacterial toughened film.
The application provides an antibiotic protection film adopts following technical scheme:
an antibacterial tempered film comprises a tempered film body and an antibacterial coating positioned on one side, away from a screen, of the tempered film body; the antibacterial coating adopted by the antibacterial coating is prepared from the following raw materials in parts by weight:
glass resin: 100 portions of
Modified nano titanium dioxide: 4 to 8 portions of
Curing agent: 1-3 parts of
The preparation method of the modified nano titanium dioxide comprises the following steps:
s1: soaking nano graphene oxide in the volatile oil, ultrasonically vibrating, taking out, and naturally airing to obtain modified nano graphene oxide;
s2: uniformly mixing nano silicon dioxide, nano titanium dioxide and modified nano graphene oxide, and ball-milling for 1-4h at the rotating speed of 100-400rad/min to obtain a mixture A;
s3: and adding the mixture A into a hydrogen peroxide solution with the mass concentration of 10-20%, ultrasonically vibrating, filtering, and freeze-drying to obtain the modified nano titanium dioxide.
By adopting the technical scheme, the nano graphene oxide is soaked by adopting the volatile oil with the bactericidal effect to obtain the modified nano graphene oxide with the bactericidal performance, then the modified nano graphene oxide, the nano titanium dioxide and the nano silicon dioxide are subjected to ball milling to enable the modified nano graphene oxide and the nano silicon dioxide to enter a lattice structure of the nano titanium dioxide, namely a mixture A, finally the mixture A is dispersed in a hydrogen peroxide solution with the mass concentration of 10-20% for soaking, and then the mixture A is taken out and freeze-dried to obtain the modified nano titanium dioxide; the antibacterial performance of the antibacterial coating doped with the modified nano titanium dioxide in a visible light environment can reach more than 70 percent, so that the antibacterial performance of the antibacterial tempered film with the antibacterial coating in the visible light environment is improved.
Preferably, before the step S1, the method further includes a step S0: and treating the nano graphene oxide by using plasma generated by inert gas.
By adopting the technical scheme, the antibacterial performance of the modified nano titanium dioxide prepared by pretreating the nano graphene oxide by using the inert gas plasma in a visible light environment is greatly improved, and the reason is probably that the nano graphene oxide with a three-dimensional porous structure is obtained by pretreating the nano graphene oxide by using the inert gas plasma, so that the volatile oil is easier to permeate into the internal structure of the nano graphene oxide.
Preferably, the inert gas is any one or a combination of argon, radon, helium, krypton, xenon and neon.
By adopting the technical scheme, when the nano graphene oxide is pretreated by adopting the plasma generated by any one of inert gases of argon, radon, helium, krypton, xenon and neon, the antibacterial performance of the modified nano titanium dioxide in the antibacterial tempered film in a visible light environment can be improved.
Preferably, the volatile oil is prepared from mint volatile oil, forsythia volatile oil and propylene glycol according to the weight ratio (8-12): (6-10): 100 are evenly mixed to obtain the product.
By adopting the technical scheme, when the volatile oil is prepared from the mint volatile oil, the forsythia volatile oil and propylene glycol according to the weight ratio (8-12): (6-10): 100, the antibacterial performance of the antibacterial tempered film in a visible light environment is further improved.
Preferably, the volatile oil is prepared from mint volatile oil, fructus forsythiae volatile oil, pepper volatile oil and propylene glycol according to the weight ratio (8-12): (6-10): (4-8): 100 are evenly mixed to obtain the product.
By adopting the technical scheme, when the volatile oil is prepared from the mint volatile oil, the forsythia volatile oil, the pepper volatile oil and the propylene glycol according to the weight ratio (8-12): (6-10): (4-8): 100, the antibacterial performance of the antibacterial tempered film in a visible light environment is further improved.
Preferably, the modified nano titanium dioxide comprises the following components in parts by weight:
nano titanium dioxide: 55 to 65 portions of
Nano silicon dioxide: 10-20 parts of
Nano graphene oxide: 8-12 parts.
By adopting the technical scheme, when the modified nano titanium dioxide is prepared from the nano titanium dioxide, the nano silicon dioxide and the nano graphene oxide according to the proportion, the antibacterial property of the modified nano titanium dioxide is improved.
Preferably, in step S1, the frequency of the ultrasonic vibration is 20 to 50KHz, and the vibration time is 1 to 2 hours.
By adopting the technical scheme, under the ultrasonic frequency, the nano graphene oxide can be rapidly and uniformly dispersed in the volatile oil, and the nano graphene oxide can be fully contacted with the volatile oil.
Preferably, in step S2, after uniformly mixing the nano-silica, the nano-titania, and the modified nano-graphene oxide, ball milling is performed at a rotation speed of 280rad/min for 2 hours to obtain a mixture a.
By adopting the technical scheme, when the ball milling speed is adopted, the nano silicon dioxide and the modified nano graphene oxide can more easily enter the lattice structure of the nano titanium dioxide, so that the antibacterial performance of the antibacterial tempered film in a visible light environment can be further improved.
Preferably, in step S3, the frequency of the ultrasonic vibration is 20 to 50KHz, and the vibration time is 1 to 2 hours.
By adopting the technical scheme, the mixture A can be rapidly and uniformly dispersed in the hydrogen peroxide solution under the ultrasonic frequency, and the mixture A is favorably and fully contacted with the hydrogen peroxide solution.
Preferably, the curing agent is 650 low molecular weight polyamide.
By adopting the technical scheme, the 650 low-molecular-weight polyamide has good compatibility with the glass resin, can be uniformly dispersed into the glass resin, and can be cured at normal temperature.
In summary, the present application has the following beneficial effects:
1. the antibacterial performance of the antibacterial coating doped with the modified nano titanium dioxide in a visible light environment can reach more than 70%, so that the antibacterial performance of the antibacterial tempered film with the antibacterial coating in the visible light environment is improved.
2. The antibacterial performance of the modified nano titanium dioxide prepared by pretreating nano graphene oxide by using inert gas plasma in a visible light environment is greatly improved, and the reason is probably that the nano graphene oxide with a three-dimensional porous structure is obtained by pretreating the nano graphene oxide by using the inert gas plasma, so that volatile oil can easily permeate into the internal structure of the nano graphene oxide.
Detailed Description
The present application will be described in further detail with reference to examples and comparative examples.
The raw materials in the application are as follows:
the glass resin is purchased from Guangdong Gude resin Co., Ltd, and has the model number of 2200 KP;
650 low molecular weight polyamides were purchased from sandisk chemical ltd, guangzhou city;
the mint volatile oil is purchased from Shenzhen Shangxi plant spice Limited company;
fructus forsythiae volatile oil is purchased from Shenzhen Shangxi plant spice, Inc.;
the fructus Zanthoxyli volatile oil is purchased from Shenzhen Shangxi plant aroma Co.
Preparation example
Preparation example 1
A preparation method of modified nano titanium dioxide comprises the following steps:
s1: soaking 12kg of nano graphene oxide in the volatile oil, vibrating for 2 hours by adopting ultrasonic waves with the vibration frequency of 20KHz, taking out, and naturally drying to obtain modified nano graphene oxide; wherein the volatile oil is prepared from mint volatile oil, forsythia volatile oil and propylene glycol according to a weight ratio of 3: 15: 100 are evenly mixed;
s2: uniformly mixing 20kg of nano silicon dioxide, 55kg of nano titanium dioxide and modified nano graphene oxide, and performing ball milling for 4 hours at the rotating speed of 100rad/min to obtain a mixture A;
s3: adding the mixture A into a hydrogen peroxide solution with the mass concentration of 20%, vibrating for 1h by adopting ultrasonic waves with the vibration frequency of 50KHz, and then filtering, freezing and drying to obtain the modified nano titanium dioxide.
Preparation example 2
A preparation method of modified nano titanium dioxide comprises the following steps:
s1: soaking 8kg of nano graphene oxide in the volatile oil, vibrating for 1h by adopting ultrasonic waves with the vibration frequency of 50KHz, taking out, and naturally drying to obtain modified nano graphene oxide; wherein the volatile oil is prepared from mint volatile oil, forsythia volatile oil and propylene glycol according to a weight ratio of 15: 3: 100 are evenly mixed;
s2: uniformly mixing 10kg of nano silicon dioxide, 65kg of nano titanium dioxide and modified nano graphene oxide, and then ball-milling for 1h at the rotating speed of 400rad/min to obtain a mixture A;
s3: adding the mixture A into hydrogen peroxide solution with the mass concentration of 10%, vibrating for 4h by adopting ultrasonic wave with the vibration frequency of 20KHz, and then filtering, freezing and drying to obtain the modified nano titanium dioxide.
Preparation example 3
A modified nano titanium dioxide, which is different from the preparation example 1 in that the S1 step is preceded by a step S0: and treating the nano graphene oxide by using plasma generated by argon.
Preparation example 4
A modified nanometer titanium dioxide is different from the preparation example 3 in that: the step S1 is also preceded by a step S0: and treating the nano graphene oxide by using plasma generated by mixed gas of argon and neon.
Preparation example 5
A modified nanometer titanium dioxide is different from the preparation example 3 in that: the volatile oil in the step S1 is prepared from mint volatile oil, forsythia volatile oil and propylene glycol according to a weight ratio of 8: 10: 100 are evenly mixed to obtain the product.
Preparation example 6
A modified nanometer titanium dioxide is different from the preparation example 5 in that: the volatile oil in the step S1 is prepared from mint volatile oil, forsythia volatile oil and propylene glycol according to the weight ratio of 12: 6: 100 are evenly mixed to obtain the product.
Preparation example 7
A modified nanometer titanium dioxide is different from the preparation example 5 in that: the volatile oil in the step S1 is prepared from mint volatile oil, fructus forsythiae volatile oil, pepper volatile oil and propylene glycol according to a weight ratio of 8: 10: 4: 100 are evenly mixed to obtain the product.
Preparation example 8
A modified nanometer titanium dioxide is different from the preparation example 5 in that: the volatile oil in the step S1 is prepared from mint volatile oil, fructus forsythiae volatile oil, pepper volatile oil and propylene glycol according to the weight ratio of 12: 6: 8: 100 are evenly mixed to obtain the product.
Preparation example 9
A modified nanometer titanium dioxide is different from the preparation example 8 in that: in step S2, after uniformly mixing the nano-silica, the nano-titania, and the modified nano-graphene oxide, ball milling is performed at a rotation speed of 280rad/min for 2h to obtain a mixture a.
Examples
Example 1
The utility model provides an antibiotic tempering membrane, includes tempering membrane body and is located the antibiotic coating that tempering membrane body deviates from screen one side, wherein, the preparation method of this antibiotic tempering membrane is as follows:
(1) preparing an antibacterial tempered film body
(2) Preparing an antibacterial coating: uniformly mixing 100kg of glass resin, 4kg of modified nano titanium dioxide and 3kg of 650 low-molecular-weight polyamide to obtain an antibacterial coating;
(3) plating an antibacterial coating: uniformly plating the antibacterial coating on one side of the toughened film, which is far away from the screen, by adopting a vacuum sputtering coating technology, and forming the antibacterial toughened film after the antibacterial coating is cured;
the modified nano titanium dioxide in this embodiment is the modified nano titanium dioxide prepared in preparation example 1.
Example 2
The utility model provides an antibiotic tempering membrane, includes tempering membrane body and is located the antibiotic coating that tempering membrane body deviates from screen one side, wherein, the preparation method of antibiotic tempering membrane lies in with embodiment 1's difference:
the modified nano titanium dioxide involved in the step (2) is 8kg, the 650 low molecular weight polyamide is 1kg, and the modified nano titanium dioxide in the embodiment is the modified nano titanium dioxide prepared in the preparation example 2.
Example 3
The utility model provides an antibiotic tempering membrane, includes tempering membrane body and is located the antibiotic coating that tempering membrane body deviates from screen one side, wherein, the preparation method of antibiotic tempering membrane lies in with embodiment 1's difference:
the modified nano titanium dioxide in this example is the modified nano titanium dioxide prepared in preparation example 3.
Example 4
The utility model provides an antibiotic tempering membrane, includes tempering membrane body and is located the antibiotic coating that tempering membrane body deviates from screen one side, wherein, the preparation method of antibiotic tempering membrane lies in with embodiment 1's difference:
the modified nano titanium dioxide in this example is the modified nano titanium dioxide prepared in preparation example 4.
Example 5
The utility model provides an antibiotic tempering membrane, includes tempering membrane body and is located the antibiotic coating that tempering membrane body deviates from screen one side, wherein, the preparation method of antibiotic tempering membrane lies in with embodiment 1's difference:
the modified nano titanium dioxide in this example is the modified nano titanium dioxide prepared in preparation example 5.
Example 6
The utility model provides an antibiotic tempering membrane, includes tempering membrane body and is located the antibiotic coating that tempering membrane body deviates from screen one side, wherein, the preparation method of antibiotic tempering membrane lies in with embodiment 1's difference:
the modified nano titanium dioxide in this example is the modified nano titanium dioxide prepared in preparation example 6.
Example 7
The utility model provides an antibiotic tempering membrane, includes tempering membrane body and is located the antibiotic coating that tempering membrane body deviates from screen one side, wherein, the preparation method of antibiotic tempering membrane lies in with embodiment 1's difference:
the modified nano titanium dioxide in this example is the modified nano titanium dioxide prepared in preparation example 7.
Example 8
The utility model provides an antibiotic tempering membrane, includes tempering membrane body and is located the antibiotic coating that tempering membrane body deviates from screen one side, wherein, the preparation method of antibiotic tempering membrane lies in with embodiment 1's difference:
the modified nano titanium dioxide in this example is the modified nano titanium dioxide prepared in preparation example 8.
Example 9
The utility model provides an antibiotic tempering membrane, includes tempering membrane body and is located the antibiotic coating that tempering membrane body deviates from screen one side, wherein, the preparation method of antibiotic tempering membrane lies in with embodiment 1's difference:
the modified nano titanium dioxide in this example is the modified nano titanium dioxide prepared in preparation example 9.
Wherein, if necessary, the antibacterial coating can be added with assistants such as defoaming agent, thickening agent and the like according to actual conditions.
Comparative example
Comparative example 1
The utility model provides an antibiotic tempering membrane, includes tempering membrane body and is located the antibiotic coating that tempering membrane body deviates from screen one side, wherein, the preparation method of this antibiotic tempering membrane is as follows:
(1) preparing an antibacterial tempered film body
(2) Preparing an antibacterial coating: 100kg of glass resin and 4kg of nano TiO22kg of nano TiO2-Ag, 2kg nano TiO2-Cu2Uniformly dispersing O and 3kg of 650 low-molecular-weight polyamide under an ultrasonic condition to prepare an antibacterial coating;
(3) plating an antibacterial coating: and (3) uniformly plating the antibacterial coating on one side of the toughened film, which is far away from the screen, by adopting a vacuum sputtering coating technology, and forming the antibacterial toughened film after the antibacterial coating is cured.
Comparative example 2
The utility model provides an antibiotic tempering membrane, includes tempering membrane body and is located the antibiotic coating that tempering membrane body deviates from screen one side, wherein, the preparation method of antibiotic tempering membrane lies in with embodiment 1's difference:
when preparing the modified nano titanium dioxide, the step S3 is omitted.
Comparative example 3
The utility model provides an antibiotic tempering membrane, includes tempering membrane body and is located the antibiotic coating that tempering membrane body deviates from screen one side, wherein, the preparation method of antibiotic tempering membrane lies in with embodiment 1's difference:
when preparing the modified nano titanium dioxide, the step S3: and adding the mixture A into water, vibrating for 1h by adopting ultrasonic waves with the vibration frequency of 50KHz, and then filtering, freezing and drying to obtain the modified nano titanium dioxide.
Comparative example 4
The utility model provides an antibiotic tempering membrane, includes tempering membrane body and is located the antibiotic coating that tempering membrane body deviates from screen one side, wherein, the preparation method of antibiotic tempering membrane lies in with embodiment 1's difference:
when preparing the modified nano titanium dioxide, the step S3: and adding the mixture A into a hydrogen peroxide solution with the mass concentration of 20%, vibrating for 1h by adopting ultrasonic waves with the vibration frequency of 50KHz, filtering, and drying in a forced air drying oven at 100 ℃ to obtain the modified nano titanium dioxide.
Detection method/test method
The samples in examples 1-9 and comparative examples 1-4 were tested according to GB/T31402-2015/ISO 22196:2007(IDT) plastic "test method for antibacterial property on plastic surface", and the specific results are shown in Table 1 below. Wherein, the concentration of the escherichia coli inoculated bacterial liquid is 8.5 x 105The amount of inoculated inoculum was 0.4 mL; the concentration of the Klebsiella pneumoniae inoculated bacterial liquid is 7.1 x 105The amount of inoculated inoculum was 0.4 mL; the concentration of Candida albicans inoculated liquid is 4.5 x 105The amount of inoculated inoculum was 0.4 mL; the concentration of staphylococcus aureus inoculated bacterial liquid is 8.8 x 105The amount of inoculated inoculum was 0.4 mL.
TABLE 1 antibacterial property test of samples in examples 1-9 and comparative examples 1-4
It can be seen by combining examples 1 to 9 and comparative example 1 and table 1 that, in the visible light environment, the antibacterial tempered film in the present application has an antibacterial rate of 80% or more against escherichia coli, klebsiella pneumoniae, and staphylococcus aureus, and an antibacterial rate of 70% or more against candida albicans, which is significantly better than the antibacterial rate of the antibacterial tempered film in the comparative example 1 under visible light, and the reason for this is that the antibacterial tempered film prepared in the present application can convert visible light into ultraviolet light, so that the antibacterial tempered film realizes antibiosis under the catalytic action of ultraviolet light, or the antibacterial tempered film prepared in the present application can realize antibiosis under the catalytic action of visible light.
It can be seen from the combination of example 1 and comparative examples 2 to 4 and table 1 that, when preparing modified nano titanium dioxide, if water is used to replace hydrogen peroxide solution in step S3 or high temperature drying is used to replace freeze drying, the performance of the obtained modified nano titanium dioxide is not much different from the antibacterial performance of the modified nano titanium dioxide obtained by directly omitting step S3 in the antibacterial tempered film; however, in a visible light environment, compared with the antibacterial performance of the antibacterial tempered film in the embodiment 1, the antibacterial performance of the antibacterial tempered film prepared in the comparative examples 2 to 4 is greatly reduced, which shows that the synergistic effect of the hydrogen peroxide solution and the freeze drying can improve the antibacterial effect of the modified nano titanium dioxide under the visible light.
By combining the embodiment 1 and the embodiments 3 to 4 and combining the table 1, the antibacterial performance of the modified nano titanium dioxide prepared by pretreating the nano graphene oxide by using the inert gas plasma in a visible light environment is greatly improved, and especially the antibacterial performance on the Klebsiella pneumoniae and the Candida albicans is greatly improved; the reason may be that the nano graphene oxide with the three-dimensional porous structure is obtained after the nano graphene oxide is pretreated by the inert gas plasma, so that the volatile oil can be conveniently permeated into the internal structure of the nano graphene oxide, and the antibacterial performance of the modified nano titanium dioxide in the antibacterial tempered film in a visible light environment can be improved.
When the volatile oil is prepared from the mint volatile oil, the forsythia volatile oil and propylene glycol in a weight ratio (8-12): (6-10): 100, the antibacterial performance of the antibacterial tempered film in a visible light environment is further improved.
When the volatile oil is prepared from the mint volatile oil, the forsythia volatile oil, the pepper volatile oil and the propylene glycol according to the weight ratio (8-12): (6-10): (4-8): 100, the antibacterial performance of the antibacterial tempered film in a visible light environment is further improved.
When the ball milling speed in step S2 is 280rad/min and the ball milling time is 2h, the antibacterial performance of the antibacterial tempered film is better when the modified nano titanium dioxide is prepared by combining example 8 and example 9 and table 1.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. An antibacterial tempered film comprises a tempered film body and an antibacterial coating positioned on one side, away from a screen, of the tempered film body; the antibacterial coating is characterized by being prepared from the following raw materials in parts by weight:
glass resin: 100 portions of
Modified nano titanium dioxide: 4 to 8 portions of
Curing agent: 1-3 parts of
The preparation method of the modified nano titanium dioxide comprises the following steps:
s1: soaking nano graphene oxide in the volatile oil, ultrasonically vibrating, taking out, and naturally airing to obtain modified nano graphene oxide;
s2: uniformly mixing nano silicon dioxide, nano titanium dioxide and modified nano graphene oxide, and ball-milling for 1-4h at the rotating speed of 100-400rad/min to obtain a mixture A;
s3: and adding the mixture A into a hydrogen peroxide solution with the mass concentration of 10-20%, ultrasonically vibrating, filtering, and freeze-drying to obtain the modified nano titanium dioxide.
2. The antibacterial tempered film as claimed in claim 1, wherein: before the step S1, a step S0 is further included: and treating the nano graphene oxide by using plasma generated by inert gas.
3. The antibacterial tempered film as claimed in claim 2, wherein: the inert gas is any one or a combination of a plurality of argon, radon, helium, krypton, xenon and neon.
4. The antibacterial tempered film as claimed in claim 2, wherein: the volatile oil is prepared from mint volatile oil, forsythia volatile oil and propylene glycol according to the weight ratio (8-12): (6-10): 100 are evenly mixed to obtain the product.
5. The antibacterial tempered film as claimed in claim 2, wherein: the volatile oil is prepared from mint volatile oil, fructus forsythiae volatile oil, pepper volatile oil and propylene glycol according to the weight ratio (8-12): (6-10): (4-8): 100 are evenly mixed to obtain the product.
6. The antibacterial tempered film as claimed in any one of claims 1 to 5, wherein: the modified nano titanium dioxide comprises the following components in parts by weight:
nano titanium dioxide: 55 to 65 portions of
Nano silicon dioxide: 10-20 parts of
Nano graphene oxide: 8-12 parts.
7. The antibacterial tempered film as claimed in any one of claims 1 to 5, wherein: in the step S1, the frequency of the ultrasonic vibration is 20-50KHz, and the vibration time is 1-2 h.
8. The antibacterial tempered film as claimed in any one of claims 1 to 5, wherein: in the step S2, after uniformly mixing the nano-silica, the nano-titania, and the modified nano-graphene oxide, ball milling is performed at a rotation speed of 280rad/min for 2 hours to obtain a mixture a.
9. The antibacterial tempered film as claimed in any one of claims 1 to 5, wherein: in the step S3, the frequency of the ultrasonic vibration is 20-50KHz, and the vibration time is 1-2 h.
10. The antibacterial tempered film as claimed in any one of claims 1 to 5, wherein: the curing agent is 650 low molecular weight polyamide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011148847.6A CN112391073A (en) | 2020-10-23 | 2020-10-23 | Antibacterial tempered film |
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| CN202011148847.6A CN112391073A (en) | 2020-10-23 | 2020-10-23 | Antibacterial tempered film |
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| CN (1) | CN112391073A (en) |
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