Antibacterial anti-scratch mobile phone film and preparation method thereof

Abstract

The invention relates to the field of mobile phone films, in particular to an antibacterial and anti-scratch mobile phone film and a preparation method thereof.The antibacterial and anti-scratch mobile phone film comprises a base material layer and an antibacterial and anti-scratch coating, and the surface of the base material layer is coated with the antibacterial and anti-scratch coating; comprising 36-72 parts of fluorosilicone resin, 6-12 parts of perfluoropolyether, 5-10 parts of modified polyimide microspheres, 2-5 parts of a fluorine-containing surfactant, 2.8-5.2 parts of a curing agent and 10-20 parts of a solvent. According to the antibacterial and anti-scratch film capable of being used on the mobile phone, the used film base material is plastic or tempered glass, and the surface of the film base material is coated with the antibacterial and anti-scratch coating, so that a better protection effect can be achieved on the mobile phone.

Description

Technical Field

[0001] The invention relates to the field of mobile phone films, and in particular to an antibacterial and scratch-resistant mobile phone film and a preparation method thereof. Background Art

[0002] Mobile phone films, also known as mobile phone protective films, are a kind of protective film that can be used on the surface or screen of the mobile phone body. There are many types. Mobile phone films were originally used to protect mobile phone screens from scratches and impacts. With the development of technology, their functions and types are constantly enriched. Mobile phone films can be divided into PET, PP, PVC, etc. according to the material, and can be divided into anti-blue light, anti-ultraviolet, anti-fingerprint, etc. according to the function. In addition, according to the method of film application, mobile phone films can also be divided into two types: laminating type and adsorption type. Laminating mobile phone films require the use of specific glue to stick the film on the mobile phone, while adsorption mobile phone films use static electricity or sticky materials to stick the film on the mobile phone.

[0003] Using a mobile phone film can effectively protect the mobile phone screen from damage, thereby extending the service life of the phone. At the same time, the mobile phone film can also prevent the mobile phone screen from breaking when accidentally dropped or collided, providing additional safety protection. In addition, some special mobile phone films can also prevent ultraviolet radiation and screen reflection. However, mobile phone films also have some disadvantages, such as easy to be stained with fingerprints, poor resistance to falling and scratching, and no antibacterial properties, which will affect the appearance of the screen, affect the touch experience, and affect the appearance and use of the screen. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide an antibacterial and scratch-resistant mobile phone film and a preparation method thereof.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] In a first aspect, the present invention provides an antibacterial and anti-scratch mobile phone film, comprising a substrate layer and an antibacterial and anti-scratch coating coated on the surface of the substrate layer, wherein the components of the antibacterial and anti-scratch coating are calculated by weight and include:

[0007] 36-72 parts of fluorosilicone resin, 6-12 parts of perfluoropolyether, 5-10 parts of modified polyimide microspheres, 2-5 parts of fluorine-containing surfactant, 2.8-5.2 parts of curing agent and 10-20 parts of solvent.

[0008] Preferably, the material of the substrate layer is one of PP, PET, PVC, aluminosilicate glass and borosilicate glass.

[0009] Preferably, the fluorosilicone resin is a cross-linked fluorosilicone resin, and the model is KX-501A or KX-501B.

[0010] Preferably, the perfluoropolyether is a Y-type perfluoropolyether, and the model is YR-1800 or YR-1500.

[0011] Preferably, the fluorine-containing surfactant is a mixture of one or more of perfluorotriethylamine, perfluorotripropylamine, perfluorotributylamine, ammonium perfluorooctane sulfonate, potassium perfluorooctane sulfonate, and sodium perfluorooctane sulfonate.

[0012] Preferably, the curing agent is an isocyanate curing agent, and the model is a mixture of one or more of D-110N, D-120N, and HB175.

[0013] Preferably, the solvent is a mixture of one or more of acetone, ethyl acetate and butyl acetate.

[0014] Preferably, the preparation method of the modified polyimide microspheres comprises:

[0015] S1, using 4,4'-diaminodiphenyl ether and pyromellitic anhydride as reactants and N,N-dimethylacetamide as solvent, first stirring in an ice water bath, then heating and aging to obtain a polyamic acid solution;

[0016] S2, treating the polyamic acid solution through a high-voltage electrostatic generator to prepare polyamic acid microspheres; then subjecting the polyamic acid microspheres to thermal cyclization treatment in an oven to obtain polyimide microspheres;

[0017] S3, treating the polyimide microspheres in an alkali solution, an acid solution and thionyl chloride in sequence to obtain acyl chloride type polyimide microspheres;

[0018] S4. Weigh acyl chloride polyimide microspheres and 2-aminopyrimidine, disperse them in dimethyl sulfoxide, add a few drops of triethylamine, and stir to react at room temperature to obtain modified polyimide microspheres.

[0019] Preferably, in S1, the mass volume ratio of 4,4'-diaminodiphenyl ether, pyromellitic dianhydride and N,N-dimethylacetamide is (0.32-0.74) g: (0.38-0.76) g: (10-20) mL.

[0020] Preferably, in S1, the stirring treatment time in the ice water bath is 0.5-1 h; the aging temperature is 55-75° C., and the aging time is 24-36 h.

[0021] Preferably, in S2, the parameters of the high-voltage electrostatic generating device are: positive pressure 10-20 kV, negative pressure 4-6 kV, and receiving distance 15-20 cm.

[0022] Preferably, in S2, the temperature of the internal heat cyclization treatment is 280-350°C and the time is 1-2h.

[0023] Preferably, in S3, the alkali solution is a sodium hydroxide solution or a potassium hydroxide solution with a mass fraction of 15%-25%; the acid solution is an acetic acid solution with a mass fraction of 2%-5%.

[0024] Preferably, in S3, the treatment time in the alkali solution is 0.3-0.8 h, the treatment time in the acid solution is 0.3-0.8 h, and the treatment time in the thionyl chloride is 2-5 h.

[0025] Preferably, in S4, the mass volume ratio of acyl chloride polyimide microspheres, 2-aminopyrimidine, triethylamine and dimethyl sulfoxide is (0.5-1.5) g: (0.18-0.36) g: (0.01-0.03) g: (10-20) mL.

[0026] In a second aspect, the present invention provides a method for preparing an antibacterial and scratch-resistant mobile phone film, comprising:

[0027] (1) Prepare the base film, clean and dry the surface, and then cut it to the appropriate size;

[0028] (2) Weighing the other components of the antibacterial and anti-scratch coating except the curing agent, mixing them evenly, and then mixing them evenly with the curing agent to obtain the antibacterial and anti-scratch coating;

[0029] (3) The antibacterial and anti-scratch coating is applied on the surface of the cut base film by spraying, and after drying, the antibacterial and anti-scratch mobile phone film is obtained.

[0030] The beneficial effects of the present invention are:

[0031] 1. The present invention prepares an antibacterial and anti-scratch film that can be used on a mobile phone. The film substrate used is plastic or tempered glass, and a layer of antibacterial and anti-scratch coating is coated on the surface of the film substrate, thereby providing a better protective effect for the mobile phone.

[0032] 2. The antibacterial and anti-scratch coating uses fluorosilicone resin as the main raw material, the purpose of which is to enhance the antifouling property of the film. The present invention also uses a combination of fluorosilicone resin and a curing agent that can be directly cured at room temperature, making it more convenient to use. In addition, modified polyimide microspheres are added to the coating composition, which not only enhances the surface mechanical properties of the fluorosilicone coating, but also makes the coating have better antibacterial properties.

[0033] 3. The modified polyimide microspheres are first prepared by 4,4'-diaminodiphenyl ether and pyromellitic anhydride to obtain polyimide microspheres; then treated with alkali solution, acid solution and thionyl chloride in sequence to obtain acyl chloride polyimide microspheres; then amide condensation reaction is carried out with 2-aminopyrimidine to finally obtain modified polyimide microspheres. Pyrimidine groups and amide groups are introduced on the surface of the modified polyimide microspheres, which not only greatly enhances its compatibility with the resin, but also enhances its antibacterial performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0035] Figure 1 It is a product schematic diagram of the mobile phone film prepared in Example 1 of the present invention. DETAILED DESCRIPTION

[0036] In order to better understand the above technical scheme, the exemplary embodiments of the present invention are described in more detail below. Although exemplary embodiments of the present invention are shown, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0037] The present invention will be further described below in conjunction with the following examples.

[0038] Example 1

[0039] An antibacterial and anti-scratch mobile phone film comprises a substrate layer and an antibacterial and anti-scratch coating layer coated on the surface of the PET substrate layer. The components of the antibacterial and anti-scratch coating layer are calculated by weight and include:

[0040] 57 parts of cross-linked fluorosilicone resin KX-501A, 9 parts of Y-type perfluoropolyether YR-1800, 8 parts of modified polyimide microspheres, 3 parts of perfluorotriethylamine, 4.1 parts of Mitsui isocyanate curing agent D-110N and 15 parts of ethyl acetate.

[0041] The preparation method of modified polyimide microspheres comprises:

[0042] S1. At room temperature and under the protection of nitrogen, weigh 4,4'-diaminodiphenyl ether and add it to N,N-dimethylacetamide, stir until it is evenly dissolved, then add pyromellitic anhydride in an ice water bath, and continue stirring for 0.8h. The mass volume ratio of 4,4'-diaminodiphenyl ether, pyromellitic anhydride and N,N-dimethylacetamide is 0.48g:0.57g:15mL, then heat to 65°C and age for 30h to obtain a polyamic acid solution;

[0043] S2, using a high-voltage electrostatic generator to prepare microspheres from a polyamic acid solution, the parameters are: positive pressure 15kV, negative pressure 5kV, receiving distance 15cm, to prepare polyamic acid microspheres with a particle size of about 10μm; then the polyamic acid microspheres are thermally cyclized in an oven at 320°C for 1.5h to obtain polyimide microspheres;

[0044] S3, soaking the polyimide microspheres in a 20w% sodium hydroxide solution for 0.5h, filtering, washing with water and drying to obtain activated polyimide microspheres; then placing them in a 2w%-5w% acetic acid solution for 0.5h, filtering, washing with water and drying to obtain carboxyl polyimide microspheres; then placing them in thionyl chloride, the ratio of carboxyl polyimide microspheres to thionyl chloride is 1g:120mL, reflux under nitrogen protection for 3h, filtering, washing with alcohol and drying to obtain acyl chloride polyimide microspheres;

[0045] S4. Weigh the acyl chloride polyimide microspheres and disperse them in dimethyl sulfoxide. Add 2-aminopyrimidine and add a few drops of triethylamine. The mass volume ratio of acyl chloride polyimide microspheres, 2-aminopyrimidine, triethylamine and dimethyl sulfoxide is 1g:0.24g:0.02g:15mL. Stir at room temperature for 6h. Filter, wash with alcohol and dry to obtain modified polyimide microspheres.

[0046] The method for preparing the antibacterial and scratch-resistant mobile phone film comprises:

[0047] (1) Prepare a 0.3 mm thick PET base film, clean and dry the surface, and then cut it to a suitable size;

[0048] (2) Weighing the other components of the antibacterial and anti-scratch coating except the curing agent, mixing them evenly, and then mixing them evenly with the curing agent to obtain the antibacterial and anti-scratch coating;

[0049] (3) The antibacterial and anti-scratch coating is applied on the surface of the cut base film by spraying, with a coating thickness of 50 μm. After drying at room temperature for 24 hours, the antibacterial and anti-scratch mobile phone film is obtained.

[0050] Example 2

[0051] An antibacterial and anti-scratch mobile phone film comprises a PP substrate layer and an antibacterial and anti-scratch coating layer coated on the surface of the PP substrate layer. The components of the antibacterial and anti-scratch coating layer are calculated by weight and include:

[0052] 36 parts of cross-linked fluorosilicone resin KX-501B, 6 parts of Y-type perfluoropolyether YR-1500, 5 parts of modified polyimide microspheres, 2 parts of perfluorotripropylamine, 2.8 parts of isocyanate curing agent D-120N and 10 parts of acetone.

[0053] The fluorine-containing surfactant is a mixture of one or more of perfluorotriethylamine, perfluorotripropylamine, perfluorotributylamine, ammonium perfluorooctane sulfonate, potassium perfluorooctane sulfonate and sodium perfluorooctane sulfonate.

[0054] The preparation method of modified polyimide microspheres comprises:

[0055] S1. At room temperature and under the protection of nitrogen, weigh 4,4'-diaminodiphenyl ether and add it to N,N-dimethylacetamide, stir until it is evenly dissolved, then add pyromellitic anhydride in an ice water bath, and continue stirring for 0.5h. The mass volume ratio of 4,4'-diaminodiphenyl ether, pyromellitic anhydride and N,N-dimethylacetamide is 0.32g:0.38g:10mL, then heat to 55°C and age for 24h to obtain a polyamic acid solution;

[0056] S2, using a high-voltage electrostatic generator to prepare microspheres from a polyamic acid solution, the parameters are: positive pressure 10 kV, negative pressure 4 kV, receiving distance 15 cm, to prepare polyamic acid microspheres; then the polyamic acid microspheres are subjected to thermal cyclization treatment in an oven at 280° C. for 1-2 hours to obtain polyimide microspheres;

[0057] S3, soaking the polyimide microspheres in a 15w% potassium hydroxide solution for 0.3h, filtering, washing with water and drying to obtain activated polyimide microspheres; then placing them in a 2w% acetic acid solution for 0.3h, filtering, washing with water and drying to obtain carboxyl polyimide microspheres; then placing them in thionyl chloride, the ratio of carboxyl polyimide microspheres to thionyl chloride is 1g:15mL, reflux under nitrogen protection for 2h, filtering, washing with alcohol and drying to obtain acyl chloride polyimide microspheres;

[0058] S4. Weigh the acyl chloride polyimide microspheres and disperse them in dimethyl sulfoxide. Add 2-aminopyrimidine and add a few drops of triethylamine. The mass volume ratio of acyl chloride polyimide microspheres, 2-aminopyrimidine, triethylamine and dimethyl sulfoxide is 0.5g:0.18g:0.01g:10mL. Stir at room temperature for 4h. Filter, wash with alcohol and dry to obtain modified polyimide microspheres.

[0059] The method for preparing the antibacterial and scratch-resistant mobile phone film comprises:

[0060] (1) Prepare a 0.1 mm thick PP base film, clean and dry the surface, and then cut it to a suitable size;

[0061] (2) Weighing the other components of the antibacterial and anti-scratch coating except the curing agent, mixing them evenly, and then mixing them evenly with the curing agent to obtain the antibacterial and anti-scratch coating;

[0062] (3) The antibacterial and anti-scratch coating is applied on the surface of the cut base film by spraying, with a coating thickness of 20 μm. After drying at room temperature for 24 hours, the antibacterial and anti-scratch mobile phone film is obtained.

[0063] Example 3

[0064] An antibacterial and anti-scratch mobile phone film comprises an aluminum-silicon glass substrate layer and an antibacterial and anti-scratch coating layer coated on the surface of the aluminum-silicon glass substrate layer. The components of the antibacterial and anti-scratch coating layer are calculated by weight and include:

[0065] 72 parts of cross-linked fluorosilicone resin KX-501A, 12 parts of Y-type perfluoropolyether YR-1800, 10 parts of modified polyimide microspheres, 5 parts of potassium perfluorooctane sulfonate, 5.2 parts of isocyanate curing agent HB175 and 20 parts of butyl acetate.

[0066] The preparation method of modified polyimide microspheres comprises:

[0067] S1. At room temperature and under the protection of nitrogen, weigh 4,4'-diaminodiphenyl ether and add it to N,N-dimethylacetamide, stir until it is evenly dissolved, then add pyromellitic anhydride in an ice water bath, and continue stirring for 1 hour. The mass volume ratio of 4,4'-diaminodiphenyl ether, pyromellitic anhydride and N,N-dimethylacetamide is 0.74g:0.76g:20mL, then heat to 75°C and age for 36 hours to obtain a polyamic acid solution;

[0068] S2, using a high-voltage electrostatic generator to prepare microspheres from a polyamic acid solution, the parameters are: positive pressure 20 kV, negative pressure 6 kV, receiving distance 20 cm, to prepare polyamic acid microspheres; then the polyamic acid microspheres are subjected to thermal cyclization treatment in an oven at 350° C. for 2 h to obtain polyimide microspheres;

[0069] S3, soaking the polyimide microspheres in a 25w% potassium hydroxide solution for 0.8h, filtering, washing with water and drying to obtain activated polyimide microspheres; then placing them in a 5w% acetic acid solution for 0.8h, filtering, washing with water and drying to obtain carboxyl polyimide microspheres; then placing them in thionyl chloride, the ratio of carboxyl polyimide microspheres to thionyl chloride is 1g:25mL, refluxing under the protection of nitrogen for 5h, filtering, washing with alcohol and drying to obtain acyl chloride polyimide microspheres;

[0070] S4. Weigh the acyl chloride polyimide microspheres and disperse them in dimethyl sulfoxide. Add 2-aminopyrimidine and add a few drops of triethylamine. The mass volume ratio of acyl chloride polyimide microspheres, 2-aminopyrimidine, triethylamine and dimethyl sulfoxide is 1.5g:0.36g:0.03g:20mL. Stir at room temperature for 8h. Filter, wash with alcohol and dry to obtain modified polyimide microspheres.

[0071] The method for preparing the antibacterial and scratch-resistant mobile phone film comprises:

[0072] (1) Prepare a 0.5 mm thick aluminum silicate glass substrate membrane, clean and dry the surface, and then cut it to a suitable size;

[0073] (2) Weighing the other components of the antibacterial and anti-scratch coating except the curing agent, mixing them evenly, and then mixing them evenly with the curing agent to obtain the antibacterial and anti-scratch coating;

[0074] (3) The antibacterial and anti-scratch coating is applied on the surface of the cut base film by spraying, with a coating thickness of 60 μm. After drying at room temperature for 24 hours, the antibacterial and anti-scratch mobile phone film is obtained.

[0075] Comparative Example 1

[0076] An antibacterial and anti-scratch coating, which differs from Example 1 in that the composition of the antibacterial and anti-scratch coating is slightly different, and the modified polyimide microspheres in the composition are replaced by polyimide microspheres (prepared in the same manner as step S2 of Example 1).

[0077] The ingredients of the antibacterial and anti-scratch coating are calculated by weight and include:

[0078] 57 parts of cross-linked fluorosilicone resin KX-501A, 9 parts of Y-type perfluoropolyether YR-1800, 8 parts of polyimide microspheres, 3 parts of perfluorotriethylamine, 4.1 parts of Mitsui isocyanate curing agent D-110N and 15 parts of ethyl acetate.

[0079] The rest of the preparation process is the same as in Example 1.

[0080] Comparative Example 2

[0081] An antibacterial and anti-scratch coating, which is different from Example 1 in that the composition of the antibacterial and anti-scratch coating is slightly different, and the modified polyimide microspheres in the composition are replaced by a mixture of polyimide microspheres and 2-aminopyrimidine.

[0082] The ingredients of the antibacterial and anti-scratch coating are calculated by weight and include:

[0083] 57 parts of cross-linked fluorosilicone resin KX-501A, 9 parts of Y-type perfluoropolyether YR-1800, 6.4 parts of polyimide microspheres, 1.6 parts of 2-aminopyrimidine, 3 parts of perfluorotriethylamine, 4.1 parts of Mitsui isocyanate curing agent D-110N and 15 parts of ethyl acetate.

[0084] The rest of the preparation process is the same as in Example 1.

[0085] The performance of the antibacterial and anti-scratch coatings prepared in Example 1 and Comparative Examples 1-2 was tested and compared. The testing standards included: hardness reference GB / T 6739-2006, adhesion reference GB / T 1720-1979, impact resistance reference standard GB / T1732-1993, and antibacterial reference standard GB / T 21866-2008 to calculate the inhibition rate of Escherichia coli and Staphylococcus aureus. The results are shown in Table 1 below:

[0086] Table 1 Performance of different antibacterial and anti-scratch coatings

[0087] Example 1 Comparative Example 1 Comparative Example 2 hardness 5H 4H 4H Adhesion(grade) 0 1 1 Impact resistance (cm) 55 50 45 Contact angle with water (°) 108 109 102 Anti-Escherichia coli (%) 97.9 81.3 94.5 Anti-Staphylococcus aureus (%) 98.6 84.8 95.3

[0088] It can be seen from the test results in the above table that the antibacterial and anti-scratch coating prepared in Example 1 of the present invention has obvious enhancements in hardness, adhesion, impact resistance and antibacterial properties, and can also maintain good waterproof properties. It can not only better protect the mobile phone to reduce the impact of scratches and fingerprints, but also the antibacterial performance can make it easier to clean and maintain in daily use.

[0089] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention. At the same time, a person skilled in the art may make changes in the specific implementation methods and scope of application based on the ideas of the present application.

Claims

1. An antibacterial and anti-scratch mobile phone film, characterized in that: It includes a substrate layer and an antibacterial and anti-scratch coating coated on the surface of the substrate layer. The components of the antibacterial and anti-scratch coating are calculated by weight and include: 36-72 parts of fluorosilicone resin, 6-12 parts of perfluoropolyether, 5-10 parts of modified polyimide microspheres, 2-5 parts of fluorine-containing surfactant, 2.8-5.2 parts of curing agent and 10-20 parts of solvent.

2. The antibacterial and anti-scratch mobile phone film according to claim 1, characterized in that: The material of the substrate layer is one of PP, PET, PVC, aluminosilicate glass and borosilicate glass.

3. The antibacterial and anti-scratch mobile phone film according to claim 1, characterized in that: The fluorosilicone resin is a cross-linked fluorosilicone resin, model KX-501A or KX-501B; the perfluoropolyether is a Y-type perfluoropolyether, model YR-1800 or YR-1500.

4. The antibacterial and anti-scratch mobile phone film according to claim 1, characterized in that: The fluorine-containing surfactant is a mixture of one or more of perfluorotriethylamine, perfluorotripropylamine, perfluorotributylamine, ammonium perfluorooctane sulfonate, potassium perfluorooctane sulfonate, and sodium perfluorooctane sulfonate.

5. The antibacterial and anti-scratch mobile phone film according to claim 1, characterized in that: The curing agent is an isocyanate curing agent, and the model is a mixture of one or more of D-110N, D-120N, and HB175; the solvent is a mixture of one or more of acetone, ethyl acetate, and butyl acetate.

6. The antibacterial and anti-scratch mobile phone film according to claim 1, characterized in that: The preparation method of the modified polyimide microspheres comprises: S1, using 4,4'-diaminodiphenyl ether and pyromellitic anhydride as reactants and N,N-dimethylacetamide as solvent, first stirring in an ice water bath, then heating and aging to obtain a polyamic acid solution; S2, treating the polyamic acid solution through a high-voltage electrostatic generator to prepare polyamic acid microspheres; then subjecting the polyamic acid microspheres to thermal cyclization treatment in an oven to obtain polyimide microspheres; S3, treating the polyimide microspheres in alkali solution, acid solution and thionyl chloride in sequence to obtain acyl chloride type polyimide microspheres; S4. Weigh acyl chloride polyimide microspheres and 2-aminopyrimidine, disperse them in dimethyl sulfoxide, add a few drops of triethylamine, and stir to react at room temperature to obtain modified polyimide microspheres.

7. The antibacterial and anti-scratch mobile phone film according to claim 6, characterized in that: In S1, the mass volume ratio of 4,4'-diaminodiphenyl ether, pyromellitic dianhydride and N,N-dimethylacetamide is (0.32-0.74) g: (0.38-0.76) g: (10-20) mL.

8. The antibacterial and scratch-resistant mobile phone film according to claim 6, wherein in S3, the alkali solution is a sodium hydroxide solution or a potassium hydroxide solution with a mass fraction of 15%-25%; the acid solution is an acetic acid solution with a mass fraction of 2%-5%.

9. The antibacterial and anti-scratch mobile phone film according to claim 6, characterized in that: In S4, the mass volume ratio of acyl chloride polyimide microspheres, 2-aminopyrimidine, triethylamine and dimethyl sulfoxide is (0.5-1.5) g: (0.18-0.36) g: (0.01-0.03) g: (10-20) mL.

10. A method for preparing the antibacterial and anti-scratch mobile phone film according to claim 1, characterized in that: include: (1) Prepare the base film, clean and dry the surface, and then cut it to the appropriate size; (2) Weighing the other components of the antibacterial and anti-scratch coating except the curing agent, mixing them evenly, and then mixing them evenly with the curing agent to obtain the antibacterial and anti-scratch coating; (3) The antibacterial and anti-scratch coating is applied on the surface of the cut base film by spraying, and after drying, the antibacterial and anti-scratch mobile phone film is obtained.

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