UV highlight plastic uptake film with ultraviolet aging resistance and preparation method of UV highlight plastic uptake film

Abstract

The invention belongs to the technical field of high polymer materials, and particularly discloses an anti-ultraviolet aging UV highlight blister film and a preparation method thereof. Comprising the following components in parts by weight: 100 parts of matrix resin, 16-22 parts of a plasticizer, 10-15 parts of an ethylene-vinyl acetate copolymer, 8-12 parts of modified needle-like wollastonite powder, 4-8 parts of POE (Polyolefin Elastomer) grafted glycidyl methacrylate, 2-4 parts of dioctyl adipate, 1-2 parts of a cross-linking agent, 1-2 parts of a stabilizer, 0.5-1.2 parts of a UV (Ultraviolet) absorbent, 0.8-2 parts of a photoinitiator and 0.4-1 part of an antioxidant. The matrix resin comprises polyvinyl chloride resin and fluorinated ethylene propylene in a mass ratio of (88-92): (8-12). The plastic uptake film disclosed by the invention has an excellent anti-ultraviolet aging effect.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of high polymer materials, in particular to an ultraviolet aging-resistant UV high-gloss blister film and a preparation method thereof. BACKGROUND

[0002] With the progress of modern science and technology, the UV high-gloss blister film as a common decorative film is widely used in various surface decoration and protection. The application of the UV high-gloss blister film in the fields of automobile interiors, household appliance surfaces and electronic products is increasingly wide.

[0003] The existing UV high-gloss blister film is prone to aging when exposed to sunlight and ultraviolet radiation for a long time, which is manifested in problems such as darkening of color, blistering and cracking of the film surface, and seriously affects the appearance and performance of the film.

[0004] In view of this, the application is proposed. SUMMARY

[0005] The application provides an ultraviolet aging-resistant UV high-gloss blister film and a preparation method thereof. The blister film has excellent ultraviolet aging resistance.

[0006] The application solves the technical problem by adopting the following technical scheme. An ultraviolet aging-resistant UV high-gloss blister film comprises the following components by weight: 100 parts of a base resin, 16-22 parts of a plasticizer, 10-15 parts of an ethylene-vinyl acetate copolymer, 8-12 parts of modified acicular wollastonite powder, 4-8 parts of POE grafted glycidyl methacrylate, 2-4 parts of dioctyl adipate, 1-2 parts of a crosslinking agent, 1-2 parts of a stabilizer, 0.5-1.2 parts of a UV absorber, 0.8-2 parts of a photoinitiator and 0.4-1 part of an antioxidant. The base resin comprises polyvinyl chloride resin and polyperfluoroethylene propylene in a mass ratio of (88-92):(8-12).

[0007] The application can improve the anti-ultraviolet aging performance of the composite material, improve the thermal stability of the plastic absorption film, and make the plastic absorption film show better comprehensive performance in high temperature and ultraviolet environment, by using polyvinyl chloride resin and polyperfluoroethylene propylene as the main body resin, and using ethylene-vinyl acetate copolymer as the modified resin, the polyperfluoroethylene propylene can significantly improve the anti-ultraviolet aging performance of the composite material, improve the thermal stability of the plastic absorption film, and make it show better comprehensive performance in high temperature and ultraviolet environment, the chemical structure of the ethylene-vinyl acetate copolymer contains vinyl acetate units, which can interact with the PVC chain, improve the overall structural stability of the PVC material, effectively reduce the damage of ultraviolet to the PVC molecular chain, reduce the discoloration and photoaging under ultraviolet irradiation, and the molecular structure of the ethylene-vinyl acetate copolymer contains polar groups (such as ester groups), which can improve the ultraviolet absorption capacity and improve the ultraviolet resistance, the POE grafted glycidyl methacrylate as a compatibilizer can effectively improve the compatibility between polyvinyl chloride resin, polyperfluoroethylene propylene and ethylene-vinyl acetate copolymer, improve the stability, and the acicular wollastonite powder has a significant improvement effect on the anti-ultraviolet performance of the plastic absorption film, which has a special structure, can effectively reduce the photoaging caused by ultraviolet through ultraviolet scattering, enhance the physical stability of the material, improve the thermal stability and antioxidant capacity, and obtain a plastic absorption film with excellent anti-ultraviolet aging effect.

[0008] As a preferred embodiment of the application, the plasticizer includes at least one of diisononyl phthalate and dioctyl phthalate.

[0009] As a preferred embodiment of the application, the photoinitiator includes at least one of 2-isopropylthioxanthone and 2-methyl-1-[4-(methylthio)phenyl]-2-(4-morpholinyl)-1-propanone. The crosslinking agent includes at least one of trimethylolpropane triacrylate and trimethylolpropane trimethacrylate.

[0010] As a preferred embodiment of the application, the stabilizer includes a barium-zinc stabilizer. The antioxidant includes at least one of antioxidant 168 and antioxidant 1076.

[0011] As a preferred embodiment of the application, the UV absorber includes a triazine UV absorber, and the triazine UV absorber includes at least one of 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-hexyloxy-phenol and 2-(4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin-2-yl)-5-octyloxyphenol.

[0012] As a preferred embodiment of the application, the preparation method of the modified acicular wollastonite powder is as follows: (1) adding the acicular wollastonite powder, titanium dioxide, oxalic acid into the hydrochloric acid solution, stirring uniformly, ultrasonic treatment, filtering, drying, to obtain the pretreated acicular wollastonite powder; (2) the pretreated acicular wollastonite powder is subjected to plasma modification treatment to obtain a precursor; (3) the precursor, fluorine-containing coupling agent, acryloyloxypropyl cage polysilsesquioxane, anhydrous ethanol are added into water, stirring uniformly, drying, to obtain the modified acicular wollastonite powder.

[0013] The present application improves the dispersibility of the acicular wollastonite powder in the system by modifying the acicular wollastonite powder, and the modified acicular wollastonite powder can uniformly fill the system, and the functional groups introduced in the modified acicular wollastonite powder can participate in the crosslinking of the plastic film system, form a stable crosslinking structure, and build a more compact ultraviolet resistant barrier, thereby effectively improving the ultraviolet aging resistance.

[0014] As a preferred embodiment of the present application, the average particle size of the acicular wollastonite powder is 325-1250 mesh.

[0015] As a preferred embodiment of the present application, the weight ratio of the acicular wollastonite powder, titanium dioxide, oxalic acid, hydrochloric acid solution is 1: (0.3-0.5): (0.04-0.1): (4-10). The molar concentration of the hydrochloric acid solution is 0.5-5 mol / L.

[0016] As a preferred embodiment of the present application, the weight ratio of the precursor, fluorine-containing coupling agent, acryloyloxypropyl cage polysilsesquioxane, anhydrous ethanol, water is 1: (0.04-0.08): (0.02-0.05): (0.5-2): (4-10). The fluorine-containing coupling agent is heptadecafluorodecyltrimethoxysilane.

[0017] As a preferred embodiment of the present application, the voltage of the plasma modification treatment is 220 V, the power is 600-800 W, and the time is 5-10 min. The power of the ultrasonic treatment is 200-500 W, and the time is 20-60 min.

[0018] The present application also provides a preparation method of the UV high light plastic film with ultraviolet aging resistance, comprising the following steps: According to the proportion, the raw materials are mixed uniformly to obtain a mixture, the mixture is mixed at 140-150 DEG C to obtain a mixed material, the mixed material is calendered and formed, and cooled to obtain the UV high light plastic film with ultraviolet aging resistance.

[0019] The beneficial effects of the present application: the present application uses ethylene-vinyl acetate copolymer as a modified resin, and polyperfluoroethylene propylene can significantly improve the anti-UV aging performance of the composite material, improve the thermal stability of the blister film, and make it show better comprehensive performance in high temperature and ultraviolet environment, the chemical structure of ethylene-vinyl acetate copolymer contains vinyl acetate unit, which can interact with PVC chain, improve the overall structural stability of PVC material, effectively reduce the damage of ultraviolet to PVC molecular chain, reduce discoloration and photoaging under ultraviolet irradiation, and the molecular structure of ethylene-vinyl acetate copolymer contains polar groups (such as ester groups), which can improve the absorption capacity of ultraviolet and improve the ultraviolet resistance, POE grafted glycidyl methacrylate as a compatibilizer, effectively improving the compatibility between polyvinyl chloride resin, polyperfluoroethylene propylene and ethylene-vinyl acetate copolymer, improving the stability, and acicular wollastonite powder has a significant improvement effect on the anti-ultraviolet performance of the blister film, which has a special structure, and can effectively reduce the photoaging caused by ultraviolet through the mechanisms of ultraviolet scattering, enhancing the physical stability of the material, improving the thermal stability and antioxidant capacity, and the blister film with excellent anti-ultraviolet aging effect is obtained. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] In the present application, the technical features described in an open way include both the closed technical scheme consisting of the listed features and the open technical scheme containing the listed features.

[0022] In the present application, if no special description is made, the numerical range is regarded as continuous and includes the minimum value and the maximum value of the range and every value between the minimum value and the maximum value. Further, when the range is an integer, every integer between the minimum value and the maximum value of the range is included. In addition, when multiple ranges are provided to describe a feature or a characteristic, the ranges can be combined. In other words, unless otherwise specified, all ranges disclosed herein should be understood to include any and all sub-ranges subsumed therein.

[0023] In the present application, the specific dispersion and stirring treatment method is not particularly limited.

[0024] The reagents or instruments used in the present application are not specified by the manufacturer, and are all conventional products that can be purchased on the market. The raw materials used in the comparative examples and the raw materials used in the parallel experiments of the examples are the same commercially available products unless otherwise specified. Among them, the raw material sources of the examples and the comparative examples are as follows: Polyvinyl chloride resin: TG-1000 brand, Japan Toagosei Chemical.

[0025] Polytetrafluoroethylene propylene: F46 brand, Shenzhen Longan Engineering Plastics.

[0026] Ethylene-vinyl acetate copolymer: ELVAX 40L-03 brand, DuPont.

[0027] Acicular wollastonite powder: 1250 mesh, SYW-XA brand, Sihuan Mining.

[0028] Barium-zinc stabilizer: BZ-424PF, Nantong Aiwang Chemical Co., Ltd.

[0029] POE grafted glycidyl methacrylate: W5D, Kaisi.

[0030] Acryloyl propyl cage polysilsesquioxane: MDH type, Maidehao Biotechnology.

[0031] Example 1 A UV high light blister film resistant to ultraviolet aging, comprising the following components by weight: 100 parts of a base resin, 20 parts of diisononyl phthalate, 12 parts of an ethylene-vinyl acetate copolymer, 11 parts of modified acicular wollastonite powder, 7 parts of POE grafted glycidyl methacrylate, 3 parts of dioctyl adipate, 1.8 parts of a crosslinking agent, 1.5 parts of a barium-zinc stabilizer, 1 part of a UV absorber, 1.5 parts of a photoinitiator, and 0.8 parts of an antioxidant 168.

[0032] The base resin comprises polyvinyl chloride resin and polytetrafluoroethylene propylene in a mass ratio of 88:12.

[0033] The photoinitiator comprises 2-isopropyl thioxanthone.

[0034] The crosslinking agent comprises trimethylolpropane triacrylate.

[0035] The UV absorber comprises a triazine UV absorber, and the triazine UV absorber comprises 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-hexyloxy-phenol.

[0036] The preparation method of the modified acicular wollastonite powder is as follows: (1) adding the acicular wollastonite powder, titanium dioxide, oxalic acid into 1 mol / L hydrochloric acid solution, stirring at 200 rpm for 100 min, ultrasonic treatment at 400 W for 50 min, filtering, drying to constant weight, to obtain the pretreated acicular wollastonite powder; the weight ratio of the acicular wollastonite powder, titanium dioxide, oxalic acid, hydrochloric acid solution is 1:0.4:0.08:8; (2) placing the pretreated acicular wollastonite powder in a plasma reaction container for plasma modification treatment, the voltage of the plasma modification treatment is 220 V, the power is 800 W, and the time is 8 min, to obtain the precursor; (3) adding the precursor, heptadecafluorodecyltrimethoxysilane, acryloyloxypropyl cage polysilsesquioxane, anhydrous ethanol into water, stirring at 200 rpm for 100 min, drying to constant weight, to obtain the modified acicular wollastonite powder. The weight ratio of the precursor, heptadecafluorodecyltrimethoxysilane, acryloyloxypropyl cage polysilsesquioxane, anhydrous ethanol, water is 1:0.05:0.04:1:8.

[0037] The preparation method of the UV high light blister film resistant to ultraviolet aging comprises the following steps: According to the proportion, the base resin, diisononyl phthalate, ethylene-vinyl acetate copolymer, modified acicular wollastonite powder, POE grafted glycidyl methacrylate, dioctyl adipate, crosslinking agent, barium-zinc stabilizer, UV absorber, photoinitiator, antioxidant 168 are mixed at 90℃ for 15 min, mixed at 50℃ for 10 min, to obtain a mixture, the mixture is mixed at 145℃ to obtain a mixed material, the mixed material is calendered by a five-roll calender, cooled at 40℃, dried, edged, and rolled into a roll to obtain a PVC film; wherein the temperature of No. 1 roll is 200℃, the temperature of No. 2 roll is 202℃, the temperature of No. 3 roll is 205℃, the temperature of No. 4 roll is 198℃, and the temperature of No. 5 roll is 195℃.

[0038] Example 2 A UV high light blister film resistant to ultraviolet aging comprises the following components by weight: 100 parts of base resin, 16 parts of diisononyl phthalate, 15 parts of ethylene-vinyl acetate copolymer, 8 parts of modified acicular wollastonite powder, 8 parts of POE grafted glycidyl methacrylate, 2 parts of dioctyl adipate, 2 parts of crosslinking agent, 1 part of barium-zinc stabilizer, 1.2 parts of UV absorber, 0.8 parts of photoinitiator, and 0.4 parts of antioxidant 168.

[0039] The base resin comprises polyvinyl chloride resin and polyperfluoroethylene propylene with a mass ratio of 88:12.

[0040] The photoinitiator comprises 2-isopropyl thioxanthone.

[0041] The crosslinking agent includes trimethylolpropane triacrylate.

[0042] The UV absorber includes a triazine UV absorber, which includes 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-hexyloxy-phenol.

[0043] The preparation method of the modified acicular wollastonite powder is as follows: (1) acicular wollastonite powder, titanium dioxide, oxalic acid are added into 1 mol / L hydrochloric acid solution, stirred at 200 rpm for 100 min, treated with 400 W ultrasonic for 50 min, filtered, dried to constant weight, to obtain pretreated acicular wollastonite powder; the weight ratio of the acicular wollastonite powder, titanium dioxide, oxalic acid, hydrochloric acid solution is 1:0.4:0.08:8; (2) the pretreated acicular wollastonite powder is placed in a plasma reaction container for plasma modification treatment, the voltage of the plasma modification treatment is 220 V, the power is 800 W, and the time is 8 min, to obtain a precursor; (3) the precursor, heptadecafluorodecyltrimethoxysilane, acryloyloxypropyl cage polysilsesquioxane, anhydrous ethanol are added into water, stirred at 200 rpm for 100 min, dried to constant weight, to obtain modified acicular wollastonite powder. The weight ratio of the precursor, heptadecafluorodecyltrimethoxysilane, acryloyloxypropyl cage polysilsesquioxane, anhydrous ethanol, water is 1:0.05:0.04:1:8.

[0044] The preparation method of the UV high light blister film resistant to ultraviolet aging includes the following steps: According to the proportion, the base resin, diisononyl phthalate, ethylene-vinyl acetate copolymer, modified acicular wollastonite powder, POE grafted glycidyl methacrylate, dioctyl adipate, crosslinking agent, barium-zinc stabilizer, UV absorber, photoinitiator, antioxidant 168 are mixed at 90℃ for 15 min, mixed at 50℃ for 10 min, to obtain a mixture, the mixture is mixed at 145℃ to obtain a mixed material, the mixed material is calendered by a five-roll calender, cooled at 40℃, dried, trimmed, and rolled into a roll to obtain a PVC film; wherein the temperature of No. 1 roll is 200℃, the temperature of No. 2 roll is 202℃, the temperature of No. 3 roll is 205℃, the temperature of No. 4 roll is 198℃, and the temperature of No. 5 roll is 195℃.

[0045] Example 3 An anti-UV aging UV high light blister film, comprising the following components by weight: 100 parts of a base resin, 22 parts of diisononyl phthalate, 10 parts of an ethylene-vinyl acetate copolymer, 12 parts of modified acicular wollastonite powder, 4 parts of POE grafted glycidyl methacrylate, 4 parts of dioctyl adipate, 1 part of a crosslinking agent, 2 parts of a barium-zinc stabilizer, 0.5 parts of a UV absorber, 2 parts of a photoinitiator, and 1 part of an antioxidant 168.

[0046] The base resin comprises polyvinyl chloride resin and polyperfluoroethylene propylene in a mass ratio of 88:12.

[0047] The photoinitiator comprises 2-isopropylthioxanthone.

[0048] The crosslinking agent comprises trimethylolpropane triacrylate.

[0049] The UV absorber comprises a triazine UV absorber, and the triazine UV absorber comprises 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-hexyloxy-phenol.

[0050] The preparation method of the modified acicular wollastonite powder is as follows: (1) acicular wollastonite powder, titanium dioxide, and oxalic acid are added to a 1 mol / L hydrochloric acid solution, stirred at a speed of 200 rpm for 100 min, treated with ultrasonic waves at a power of 400 W for 50 min, filtered, and dried to constant weight to obtain pretreated acicular wollastonite powder; the weight ratio of the acicular wollastonite powder, titanium dioxide, oxalic acid, and hydrochloric acid solution is 1:0.4:0.08:8; (2) the pretreated acicular wollastonite powder is placed in a plasma reaction container for plasma modification treatment, the voltage of the plasma modification treatment is 220 V, the power is 800 W, and the time is 8 min to obtain a precursor; (3) the precursor, heptadecafluorodecyltrimethoxysilane, acryloyloxypropyl cage polysilsesquioxane, and anhydrous ethanol are added to water, stirred at a speed of 200 rpm for 100 min, and dried to constant weight to obtain modified acicular wollastonite powder; the weight ratio of the precursor, heptadecafluorodecyltrimethoxysilane, acryloyloxypropyl cage polysilsesquioxane, anhydrous ethanol, and water is 1:0.05:0.04:1:8.

[0051] The preparation method of the anti-UV aging UV high light blister film comprises the following steps: According to the proportion, the base resin, diisononyl phthalate, ethylene-vinyl acetate copolymer, modified acicular wollastonite powder, POE grafted glycidyl methacrylate, dioctyl adipate, crosslinking agent, barium-zinc stabilizer, UV absorber, photoinitiator, antioxidant 168 are mixed at 90℃ for 15min, mixed at 50℃ for 10min, to obtain a mixture, the mixture is mixed at 145℃ to obtain a mixed material, the mixed material is calendered by five-roller calender, cooled at 40℃, dried, trimmed, and rolled into a roll to obtain a PVC film; wherein the temperature of No.1 roller is 200℃, the temperature of No.2 roller is 202℃, the temperature of No.3 roller is 205℃, the temperature of No.4 roller is 198℃, and the temperature of No.5 roller is 195℃.

[0052] Example 4 A UV high light blister film resistant to ultraviolet aging, comprising the following components by weight: 100 parts of base resin, 20 parts of diisononyl phthalate, 12 parts of ethylene-vinyl acetate copolymer, 11 parts of modified acicular wollastonite powder, 7 parts of POE grafted glycidyl methacrylate, 3 parts of dioctyl adipate, 1.8 parts of crosslinking agent, 1.5 parts of barium-zinc stabilizer, 1 part of UV absorber, 1.5 parts of photoinitiator, and 0.8 parts of antioxidant 168.

[0053] The base resin comprises polyvinyl chloride resin and polyperfluoroethylene propylene in a mass ratio of 92:8.

[0054] The photoinitiator comprises 2-isopropyl thioxanthone.

[0055] The crosslinking agent comprises trimethylolpropane triacrylate.

[0056] The UV absorber comprises a triazine UV absorber, and the triazine UV absorber comprises 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-hexyloxy-phenol.

[0057] The preparation method of the modified acicular wollastonite powder is as follows: (1) The acicular wollastonite powder, titanium dioxide, and oxalic acid are added to a 1 mol / L hydrochloric acid solution, stirred at a speed of 200 rpm for 100 min, and ultrasonically treated at a power of 400 W for 50 min, filtered, and dried to constant weight to obtain pretreated acicular wollastonite powder; the weight ratio of the acicular wollastonite powder, titanium dioxide, oxalic acid, and hydrochloric acid solution is 1:0.4:0.08:8; (2) The pretreated acicular wollastonite powder is placed in a plasma reaction container for plasma modification treatment, the voltage of the plasma modification treatment is 220 V, the power is 800 W, and the time is 8 min to obtain a precursor. (3) the precursor, heptadecafluorodecyltrimethoxysilane, acryloxypropyl cage polysilsesquioxane, anhydrous ethanol are added into water, stirred at 200 rpm for 100 min, dried to constant weight, to obtain modified acicular wollastonite powder. The weight ratio of the precursor, heptadecafluorodecyltrimethoxysilane, acryloxypropyl cage polysilsesquioxane, anhydrous ethanol, water is 1:0.05:0.04:1:8.

[0058] The preparation method of the anti-UV aging UV high light blister film comprises the following steps: According to the proportion, the base resin, diisononyl phthalate, ethylene-vinyl acetate copolymer, modified acicular wollastonite powder, POE grafted glycidyl methacrylate, dioctyl adipate, crosslinking agent, barium-zinc stabilizer, UV absorber, photoinitiator, antioxidant 168 are mixed at 90℃ for 15min, mixed at 50℃ for 10min, to obtain a mixture, the mixture is mixed at 145℃, to obtain a mixed material, the mixed material is calendered by a five-roll calender, cooled at 40℃, dried, trimmed, and rolled into a roll, to obtain a PVC film; wherein the temperature of No. 1 roll is 200℃, the temperature of No. 2 roll is 202℃, the temperature of No. 3 roll is 205℃, the temperature of No. 4 roll is 198℃, and the temperature of No. 5 roll is 195℃.

[0059] Comparative Example 1

[0060] Comparative Example 1 is different from Example 1 in that the base resin of Comparative Example 1 does not contain polyfluoroethylene propylene, and the others are the same.

[0061] An anti-UV aging UV high light blister film comprises the following components by weight: 100 parts of polyvinyl chloride resin, 20 parts of diisononyl phthalate, 12 parts of ethylene-vinyl acetate copolymer, 11 parts of modified acicular wollastonite powder, 7 parts of POE grafted glycidyl methacrylate, 3 parts of dioctyl adipate, 1.8 parts of crosslinking agent, 1.5 parts of barium-zinc stabilizer, 1 part of UV absorber, 1.5 parts of photoinitiator, and 0.8 parts of antioxidant 168.

[0062] Comparative Example 2

[0063] Comparative Example 2 is different from Example 1 in that Comparative Example 2 uses an equal amount of acicular wollastonite powder to replace the modified acicular wollastonite powder, and the others are the same.

[0064] The UV high-gloss blister film with anti-UV aging is prepared from the following components in parts by weight: 100 parts of base resin, 20 parts of diisononyl phthalate, 12 parts of ethylene-vinyl acetate copolymer, 11 parts of acicular wollastonite powder, 7 parts of POE grafted glycidyl methacrylate, 3 parts of dioctyl adipate, 1.8 parts of crosslinking agent, 1.5 parts of barium-zinc stabilizer, 1 part of UV absorber, 1.5 parts of photoinitiator, and 0.8 parts of antioxidant 168.

[0065] The base resin comprises polyvinyl chloride resin and polyperfluoroethylene propylene in a mass ratio of 88:12.

[0066] Comparative Example 3

[0067] Comparative Example 3 is different from Example 1 in that the preparation method of the modified acicular wollastonite powder is different from that of Example 1, and other aspects are the same.

[0068] The preparation method of the modified acicular wollastonite powder is as follows: (1) The acicular wollastonite powder, titanium dioxide, and oxalic acid are added to a 1 mol / L hydrochloric acid solution, stirred at a speed of 200 rpm for 100 min, treated with ultrasonic waves at a power of 400 W for 50 min, filtered, and dried to constant weight to obtain the modified acicular wollastonite powder; the weight ratio of the acicular wollastonite powder, titanium dioxide, oxalic acid, and hydrochloric acid solution is 1:0.4:0.08:8.

[0069] Comparative Example 4

[0070] Comparative Example 4 is different from Example 1 in that the preparation method of the modified acicular wollastonite powder is different from that of Example 1, and other aspects are the same.

[0071] The preparation method of the modified acicular wollastonite powder is as follows: (1) The acicular wollastonite powder, titanium dioxide, and oxalic acid are added to a 1 mol / L hydrochloric acid solution, stirred at a speed of 200 rpm for 100 min, treated with ultrasonic waves at a power of 400 W for 50 min, filtered, and dried to constant weight to obtain the modified acicular wollastonite powder; the weight ratio of the acicular wollastonite powder, titanium dioxide, oxalic acid, and hydrochloric acid solution is 1:0.4:0.08:8. (2) The pretreated acicular wollastonite powder, silane coupling agent KH550, and anhydrous ethanol are added to water, stirred at a speed of 200 rpm for 100 min, and dried to constant weight to obtain the modified acicular wollastonite powder. The weight ratio of the precursor, silane coupling agent KH550, anhydrous ethanol, and water is 1:0.05:1:8.

[0072] Test Example

[0073] UV aging test: the blister film of the examples and the comparative examples was subjected to UV light test, and the UV light time and intensity of each group were the same (30W UV lamp irradiation for 30 days).

[0074] The calculated tensile strength aging rate and yellowing rate.

[0075] The tensile strength refers to GB / T1040-92 Plastic Tensile Property Test Method.

[0076] The yellow index refers to Plastic Yellow Index Test Method.

[0077] The bending strength aging rate = (1-tensile strength after irradiation / tensile strength before irradiation) 100%.

[0078] The yellowing rate = (1-yellow index after irradiation / yellow index before irradiation) 100%.

[0079] Table 1

[0080] As can be seen from Table 1, the blister film of the present application has excellent anti-UV aging effect.

[0081] Finally, it should be noted that the above examples are intended to illustrate the technical solutions of the present application rather than limit the scope of protection of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present application.

Claims

1. An anti-UV-aging UV high-gloss blister film, characterized in that, The components include the following weight parts: 100 parts of base resin, 16-22 parts of plasticizer, 10-15 parts of ethylene-vinyl acetate copolymer, 8-12 parts of modified acicular wollastonite powder, 4-8 parts of POE grafted glycidyl methacrylate, 2-4 parts of dioctyl adipate, 1-2 parts of crosslinking agent, 1-2 parts of stabilizer, 0.5-1.2 parts of UV absorber, 0.8-2 parts of photoinitiator, and 0.4-1 part of antioxidant. The base resin includes polyvinyl chloride resin and polyperfluoroethylene propylene in a mass ratio of (88-92):(8-12).

2. The UV high gloss anti-UV-aging blister film according to claim 1, characterized in that, The plasticizer includes at least one of diisononyl phthalate and dioctyl phthalate.

3. The UV high gloss anti-UV-aging blister film according to claim 1, wherein, The photoinitiator includes at least one of 2-isopropylthioxanthone and 2-methyl-1-[4-(methylthio)phenyl]-2-(4-morpholinyl)-1-propanone. The crosslinking agent includes at least one of trimethylolpropane triacrylate and trimethylolpropane trimethacrylate.

4. The UV high gloss anti-UV-aging blister film according to claim 1, wherein, The stabilizer includes barium-zinc stabilizer. The antioxidant includes at least one of antioxidant 168 and antioxidant 1076.

5. The UV high gloss anti-UV-aging blister film according to claim 1, wherein, The UV absorber includes triazine UV absorber, and the triazine UV absorber includes at least one of 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-hexyloxy-phenol and 2-(4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin-2-yl)-5-octyloxy-phenol.

6. The UV high gloss anti-UV-aging blister film according to claim 1, wherein, The preparation method of the modified acicular wollastonite powder is as follows: (1) adding acicular wollastonite powder, titanium dioxide, and oxalic acid into hydrochloric acid solution, stirring uniformly, ultrasonic treatment, filtering, and drying to obtain pretreated acicular wollastonite powder; (2) subjecting the pretreated acicular wollastonite powder to plasma modification treatment to obtain a precursor; (3) adding the precursor, fluorine-containing coupling agent, acryloxypropyl cage polysilsesquioxane, and anhydrous ethanol into water, stirring uniformly, and drying to obtain modified acicular wollastonite powder.

7. The UV high gloss anti-UV-aging blister film according to claim 1, wherein, The weight ratio of the acicular wollastonite powder, titanium dioxide, oxalic acid, and hydrochloric acid solution is 1:(0.3-0.5):(0.04-0.1):(4-10). The molar concentration of the hydrochloric acid solution is 0.5-5 mol / L.

8. The UV high gloss anti-UV-aging blister film according to claim 1, wherein, The weight ratio of the precursor, fluorine-containing coupling agent, acryloxypropyl cage polysilsesquioxane, anhydrous ethanol, and water is 1:(0.04-0.08):(0.02-0.05):(0.5-2):(4-10). The fluorine-containing coupling agent is heptadecafluorodecyltrimethoxysilane.

9. The UV high gloss anti-UV-aging blister film according to claim 1, wherein, The voltage of the plasma modification treatment is 220 V, the power is 600-800 W, and the time is 5-10 min. The power of the ultrasonic treatment is 200-500 W, and the time is 20-60 min.

10. The method of claim 1-9 for the preparation of UV high gloss blister films resistant to UV-aging, characterized in that, The method includes the following steps: According to the proportion, the raw materials are mixed uniformly to obtain a mixture, the mixture is mixed at 140-150°C to obtain a mixed material, the mixed material is calendered and formed, and cooled to obtain an ultraviolet aging resistant UV high light blister film.

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