A high light transmittance aromatic polycarbonate antistatic film and preparation method thereof

Abstract

The present invention discloses a highly light-transmitting aromatic polycarbonate antistatic film, comprising the following raw materials: 40-60 parts of aromatic polycarbonate, 10-20 parts of polyphenylene sulfide, 5-10 parts of polyaniline, 3-7 parts of polyfluorene-modified metal nanoparticles, 1-4 parts of polyethylene oxide-epichlorohydrin copolymer, and 2-6 parts of boron nitride nanosheets. Aromatic polycarbonate and polyphenylene sulfide are used as the main components of the antistatic film to ensure the basic mechanical performance requirements of the antistatic film; polyaniline, polyfluorene-modified metal nanoparticles, and polyethylene oxide-epichlorohydrin copolymer are used as composite antistatic agents to effectively improve the antistatic performance; and polyfluorene-modified metal nanoparticles can improve the light transmittance of the antistatic film. The highly light-transmitting aromatic polycarbonate antistatic film has a light transmittance of >95% and a resistivity of <8×10 6 Ω·cm.

Description

Technical Field

[0001] The invention relates to the field of antistatic films, and in particular to a highly light-transmitting aromatic polycarbonate antistatic film and a preparation method thereof. Background Art

[0002] As an engineering plastic, polymer resin materials are widely used in all walks of life and have excellent optical and physical mechanical properties. In particular, polycarbonate resin materials are one of the preferred materials for electrical and electronic equipment and / or components due to their excellent properties such as mechanical strength and heat resistance. Although they have good mechanical strength and heat resistance, the surface resistance and volume resistance of polymer resin materials are relatively high, and static electricity will remain on the surface, causing safety hazards. Especially in the environment of underground operations in coal mines, etc., the use of polymer materials must be subjected to surface antistatic treatment. Since electrical, electronic equipment and / or components are in a charged working environment, polycarbonate resin materials are also required to have antistatic properties. In order to eliminate static electricity, corresponding antistatic agents are generally added to polymer materials to reduce surface resistance and volume resistance, thereby improving antistatic properties.

[0003] The prior art has done a lot of research on the antistatic properties of polycarbonate resin materials and has made good progress.

[0004] Chinese patent CN 105860486 A discloses a method for preparing an antistatic flexible film material, comprising the following steps:

[0005] (1) Add salicylate, furfuryl alcohol resin and tributyl phosphate to acetone and ethylene glycol, and then add polytrifluorochloroethylene; add sodium allyloxyhydroxypropyl sulfonate, evaporate to dryness, and obtain mixture I; (2) Add polycarbonate, polyamide resin, terpene resin, 2-ethylhexyl acrylate, and triethanolamine borate to ethanol, stir, then add phosphomolybdic acid and nanocellulose, then add composite antistatic agent, and then add carbon black; stir to obtain mixture II; then add mixture I, perfluorodecyl trichlorosilane and PE wax to the above mixture II, stir to obtain a membrane material precursor; (3) Dissolve the membrane material precursor in a mixed solvent, apply it on a substrate, dry and solidify to obtain. The film material prepared by the present invention has good antistatic performance, bending resistance, good flexibility and good application value.

[0006] Chinese patent CN 107225828 A discloses an antistatic polycarbonate film for a Micro LED screen, comprising a first conductive layer, a polycarbonate base layer, a second conductive layer, and a wear-resistant layer arranged from bottom to top, characterized in that the polycarbonate base layer is composed of the following material components in parts by weight: 75-80 parts of polycarbonate, 15-22 parts of an antistatic agent compound system, 9-13 parts of a dispersant, 4-8 parts of a compatibilizer, 5-10 parts of an antioxidant, and 2-4 parts of an additive.

[0007] Chinese patent CN 101845212 A discloses a highly transparent permanent antistatic polycarbonate film, characterized in that: the highly transparent permanent antistatic polycarbonate film contains polycarbonate, antistatic grade resin, 20% dispersant, 25% heat stabilizer and 25% release agent, the content of the antistatic agent is 1-30% of the weight of the polycarbonate, the antistatic grade resin contains the antistatic agent, the antistatic agent is a binary copolymer of PA6 or PA12 and PE, and the copolymer is a thermoplastic highly transparent elastomer.

[0008] However, antistatic films generally have poor light transmittance and are not suitable for devices with high light transmittance requirements. The prior art rarely studies the light transmittance of antistatic films. Summary of the invention

[0009] Based on the deficiencies and needs of the prior art, the present invention provides a highly light-transmitting aromatic polycarbonate antistatic film and a preparation method thereof. The antistatic film provided by the present invention has good antistatic performance, excellent anti-bending and scratch resistance, and a light transmittance of more than 96%.

[0010] In order to achieve the purpose of the present invention, the present invention is implemented by the following technical solutions:

[0011] A highly light-transmitting aromatic polycarbonate antistatic film is prepared from the following raw materials in parts by weight:

[0012] Aromatic polycarbonate 40-60 parts

[0013] Polyphenylene sulfide 10-20 parts

[0014] Polyaniline 5-10 parts

[0015] 3-7 parts of polyfluorene modified metal nanoparticles

[0016] 1-4 parts of polyoxyethylene-epichlorohydrin copolymer

[0017] 2 to 6 parts of boron nitride nanosheets.

[0018] Furthermore, the highly light-transmitting aromatic polycarbonate antistatic film is prepared by including the following raw materials in parts by weight:

[0019] Aromatic polycarbonate 45-55 parts

[0020] Polyphenylene sulfide 13-18 parts

[0021] Polyaniline 7-9 parts

[0022] 5-6 parts of polyfluorene modified metal nanoparticles

[0023] 2-3 parts of polyoxyethylene-epichlorohydrin copolymer

[0024] 3 to 5 parts of boron nitride nanosheets.

[0025] The technical solution of the present application has no special limitation on aromatic polycarbonate, and the present invention can be implemented by using products known in the prior art or commercially available products.

[0026] Furthermore, the preparation steps of the polyfluorene-modified metal nanoparticles are as follows: (1) dissolving 20 to 30 g of 2,7-di-tert-butylfluorene in 200 mL of chloroform solvent, adding 15 to 20 mg of FeCl3 and 5 to 10 g of metal nanoparticles; (2) placing a reaction container in a water bath at 0 to 5° C. and stirring for 20 to 30 minutes; adding 7 to 10 mL of Br2 dropwise into the reaction container and stirring is maintained to allow the system to react for 4 to 5 hours; (3) after the reaction is completed, adding an excess of potassium hydroxide solution to the reactor, extracting with chloroform, filtering the oil phase, and distilling under reduced pressure to obtain polyfluorene-modified metal nanoparticles.

[0027] Furthermore, in order to improve the purity of the polyfluorene-modified metal nanoparticles, they can be purified by recrystallization.

[0028] Polyfluorene and its derivatives are organic optoelectronic materials. Their molecular structures have rigid biphenyl structures and contain large conjugated systems, which enable them to exhibit many unique optoelectronic properties and biological activities. However, polyfluorene and its derivatives are widely used in optoelectronic display and medicine. Based on its optoelectronic properties, the applicant tried to use it in antistatic films and found that it can improve the light transmittance of antistatic films. Based on the above findings, the technical solution of the present invention is completed.

[0029] Furthermore, the metal nanoparticles are one or more of silver, copper and gold, and have a particle size of 300 to 500 nm.

[0030] Furthermore, the boron nitride nanosheet has a thickness of 3 to 5 nm, a width of 5 to 10 nm, and a length of 12 to 20 nm.

[0031] Furthermore, the raw material also includes 1 to 5 parts of auxiliary agents. The auxiliary agents include one or more of antioxidants, lubricants, and anti-ultraviolet light absorbers.

[0032] The present application does not have any particular limitation on the selection of oxidants, lubricants, and anti-ultraviolet light absorbers. Common and / or known oxidants, lubricants, and anti-ultraviolet light absorbers in the prior art can be used, as long as the materials do not have a significant impact on the light transmittance and antistatic properties, that is, they have no essential impact on the technical solution of the present application.

[0033] Furthermore, the highly light-transmitting aromatic polycarbonate antistatic film has a light transmittance of more than 95% and a resistivity of less than 8×10 6 Ω·cm.

[0034] According to another object of the present invention, the present invention also provides a method for preparing the above-mentioned highly light-transmitting aromatic polycarbonate antistatic film, the preparation method comprising the following steps:

[0035] (1) Weighing each raw material according to the ingredients and mixing them evenly to obtain a blend;

[0036] (2) melt-blending the above blended materials through a screw extruder;

[0037] (3) Blowing and cooling: After the blend is extruded through the die head, it is blown and squeezed into a film through a herringbone plate and a traction guide roller. After cooling, it is corona-treated and rolled up to obtain an antistatic film.

[0038] Furthermore, the first section temperature of the screw extruder is 170-190°C, the second section temperature is 200-230°C, the third section temperature is 210-220°C, the screw speed is 50-80r / min, and the aspect ratio is 40-50:1.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] (1) The present application uses aromatic polycarbonate and polyphenylene sulfide as the main components of the antistatic film, wherein polyphenylene sulfide can effectively improve the surface hardness of the antistatic film and improve its scratch resistance, thereby ensuring the basic mechanical performance requirements of the antistatic film.

[0041] (2) The present application uses polyaniline, polyfluorene-modified metal nanoparticles, and polyethylene oxide-epichlorohydrin copolymer as composite antistatic agents to effectively improve the antistatic performance; and the polyfluorene-modified metal nanoparticles can improve the light transmittance of the antistatic film.

[0042] (3) Boron nitride has good thermal conductivity and excellent mechanical properties. Adding it to the antistatic film can also improve the heat dissipation performance of the antistatic film.

[0043] (4) The aromatic polycarbonate antistatic film prepared by the present invention can be widely used in the antistatic needs of electronic products, etc., and has good economic value; in particular, it is more suitable for scenes with requirements on light transmittance. DETAILED DESCRIPTION

[0044] The present invention is described in detail below through examples, but it should not be understood as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments based on the above contents of the present invention.

[0045] The raw materials used in the embodiments and comparative examples are:

[0046] Aromatic polycarbonate: Trademark PC2200R

[0047] Polyphenylene sulfide: Trademark T30S

[0048] Polyaniline: Trademark No. XW56124421

[0049] Example 1

[0050] A highly light-transmitting aromatic polycarbonate antistatic film is prepared from the following raw materials in parts by weight:

[0051] 40 parts of aromatic polycarbonate

[0052] Polyphenylene sulfide 10 parts

[0053] Polyaniline 5 parts

[0054] 3 parts of polyfluorene modified metal nanoparticles

[0055] 1 part of polyoxyethylene-epichlorohydrin copolymer

[0056] 2 parts of boron nitride nanosheets, wherein the graphene nanosheets have a thickness of 3 nm, a width of 5 nm, and a length of 12 nm.

[0057] The preparation steps of the polyfluorene-modified metal nanoparticles are as follows: (1) dissolving 20 g of 2,7-di-tert-butylfluorene in 200 mL of chloroform solvent, adding 15 mg of FeCl3 and 5 g of silver nanoparticles (particle size 300 nm); (2) placing a reaction container in a water bath at 0° C. and stirring for 20 min; then dropping 7 mL of Br2 into the reaction container and stirring to allow the system to react for 4 h; (3) after the reaction is completed, adding an excess of potassium hydroxide solution to the reactor, extracting with chloroform, filtering the oil phase, and distilling under reduced pressure to obtain polyfluorene-modified silver nanoparticles. The silver nanoparticles are then recrystallized and purified.

[0058] The above-mentioned method for preparing a highly light-transmitting aromatic polycarbonate antistatic film comprises the following steps:

[0059] (1) Weighing each raw material according to the ingredients and mixing them evenly to obtain a blend;

[0060] (2) melt-blending the above blended materials through a screw extruder;

[0061] (3) Blowing and cooling: After the blend is extruded through the die head, it is blown and squeezed into a film through a herringbone plate and a traction guide roller. After cooling, it is corona-treated and rolled up to obtain an antistatic film.

[0062] The first-stage temperature of the screw extruder is 180°C, the second-stage temperature is 200°C, the third-stage temperature is 210°C, the screw speed is 50r / min, and the aspect ratio is 40:1.

[0063] Example 2

[0064] A highly light-transmitting aromatic polycarbonate antistatic film is prepared from the following raw materials in parts by weight:

[0065] Aromatic polycarbonate 60 parts

[0066] 20 parts of polyphenylene sulfide

[0067] Polyaniline 10 parts

[0068] 7 parts of polyfluorene modified metal nanoparticles

[0069] 4 parts of polyoxyethylene-epichlorohydrin copolymer

[0070] 6 parts of boron nitride nanosheets, wherein the graphene nanosheets have a thickness of 5 nm, a width of 10 nm, and a length of 20 nm.

[0071] The preparation steps of the polyfluorene-modified metal nanoparticles are as follows: (1) dissolving 30 g of 2,7-di-tert-butylfluorene in 200 mL of chloroform solvent, adding 20 mg of FeCl3 and 10 g of copper nanoparticles (particle size 500 nm); (2) placing a reaction container in a water bath at 5° C. and stirring for 30 min; then dropping 10 mL of Br2 into the reaction container and stirring to allow the system to react for 5 h; (3) after the reaction is completed, adding an excess of potassium hydroxide solution to the reactor, extracting with chloroform, filtering the oil phase, and distilling under reduced pressure to obtain polyfluorene-modified copper nanoparticles. The particles are then recrystallized and purified.

[0072] The above-mentioned method for preparing a highly light-transmitting aromatic polycarbonate antistatic film comprises the following steps:

[0073] (1) Weighing each raw material according to the ingredients and mixing them evenly to obtain a blend;

[0074] (2) melt-blending the above blended materials through a screw extruder;

[0075] (3) Blowing and cooling: After the blend is extruded through the die head, it is blown and squeezed into a film through a herringbone plate and a traction guide roller. After cooling, it is corona-treated and rolled up to obtain an antistatic film.

[0076] The first-stage temperature of the screw extruder is 190°C, the second-stage temperature is 230°C, the third-stage temperature is 220°C, the screw speed is 80r / min, and the aspect ratio is 50:1.

[0077] Example 3

[0078] A highly light-transmitting aromatic polycarbonate antistatic film is prepared from the following raw materials in parts by weight:

[0079] Aromatic polycarbonate 50 parts

[0080] Polyphenylene sulfide 15 parts

[0081] Polyaniline 8 parts

[0082] 5 parts of polyfluorene modified metal nanoparticles

[0083] 3 parts of polyoxyethylene-epichlorohydrin copolymer

[0084] 4 portions of boron nitride nanosheets, wherein the graphene nanosheets have a thickness of 4 nm, a width of 7 nm, and a length of 16 nm.

[0085] The preparation steps of the polyfluorene-modified metal nanoparticles are as follows: (1) dissolving 25 g of 2,7-di-tert-butylfluorene in 200 mL of chloroform solvent, adding 17 mg of FeCl3 and 6 g of silver nanoparticles (particle size 400 nm); (2) placing the reaction container in a water bath at 2° C. and stirring for 20 min; then dropping 8 mL of Br2 into the reaction container and stirring to allow the system to react for 5 h; (3) after the reaction is completed, adding an excess of potassium hydroxide solution to the reactor, extracting with chloroform, filtering the oil phase, and distilling under reduced pressure to obtain polyfluorene-modified copper nanoparticles. The particles are then recrystallized and purified.

[0086] The above-mentioned method for preparing a highly light-transmitting aromatic polycarbonate antistatic film comprises the following steps:

[0087] (1) Weighing each raw material according to the ingredients and mixing them evenly to obtain a blend;

[0088] (2) melt-blending the above blended materials through a screw extruder;

[0089] (3) Blowing and cooling: After the blend is extruded through the die head, it is blown and squeezed into a film through a herringbone plate and a traction guide roller. After cooling, it is corona-treated and rolled up to obtain an antistatic film.

[0090] The first-stage temperature of the screw extruder is 175°C, the second-stage temperature is 215°C, the third-stage temperature is 210°C, the screw speed is 60r / min, and the aspect ratio is 45:1.

[0091] Comparative Example 1

[0092] A highly light-transmitting aromatic polycarbonate antistatic film is prepared from the following raw materials in parts by weight:

[0093] Aromatic polycarbonate 50 parts

[0094] Polyphenylene sulfide 15 parts

[0095] Polyaniline 8 parts

[0096] Silver nanoparticles (particle size 400nm) 5 parts

[0097] 3 parts of polyoxyethylene-epichlorohydrin copolymer

[0098] 4 portions of boron nitride nanosheets, wherein the graphene nanosheets have a thickness of 4 nm, a width of 7 nm, and a length of 16 nm.

[0099] The above-mentioned method for preparing a highly light-transmitting aromatic polycarbonate antistatic film comprises the following steps:

[0100] (1) Weighing each raw material according to the ingredients and mixing them evenly to obtain a blend;

[0101] (2) melt-blending the above blended materials through a screw extruder;

[0102] (3) Blowing and cooling: After the blend is extruded through the die head, it is blown and squeezed into a film through a herringbone plate and a traction guide roller. After cooling, it is corona-treated and rolled up to obtain an antistatic film.

[0103] The first-stage temperature of the screw extruder is 175°C, the second-stage temperature is 215°C, the third-stage temperature is 210°C, the screw speed is 60r / min, and the aspect ratio is 45:1.

[0104] Comparative Example 2

[0105] A highly light-transmitting aromatic polycarbonate antistatic film is prepared from the following raw materials in parts by weight:

[0106] Aromatic polycarbonate 50 parts

[0107] Polyaniline 8 parts

[0108] 5 parts of polyfluorene modified metal nanoparticles

[0109] 3 parts of polyoxyethylene-epichlorohydrin copolymer

[0110] 4 portions of boron nitride nanosheets, wherein the graphene nanosheets have a thickness of 4 nm, a width of 7 nm, and a length of 16 nm.

[0111] The preparation steps of the polyfluorene-modified metal nanoparticles are as follows: (1) dissolving 25 g of 2,7-di-tert-butylfluorene in 200 mL of chloroform solvent, adding 17 mg of FeCl3 and 6 g of silver nanoparticles (particle size 400 nm); (2) placing the reaction container in a water bath at 2° C. and stirring for 20 min; then dropping 8 mL of Br2 into the reaction container and stirring to allow the system to react for 5 h; (3) after the reaction is completed, adding an excess of potassium hydroxide solution to the reactor, extracting with chloroform, filtering the oil phase, and distilling under reduced pressure to obtain polyfluorene-modified copper nanoparticles. The particles are then recrystallized and purified.

[0112] The above-mentioned method for preparing a highly light-transmitting aromatic polycarbonate antistatic film comprises the following steps:

[0113] (1) Weighing each raw material according to the ingredients and mixing them evenly to obtain a blend;

[0114] (2) melt-blending the above blended materials through a screw extruder;

[0115] (3) Blowing and cooling: After the blend is extruded through the die head, it is blown and squeezed into a film through a herringbone plate and a traction guide roller. After cooling, it is corona-treated and rolled up to obtain an antistatic film.

[0116] The first-stage temperature of the screw extruder is 175°C, the second-stage temperature is 215°C, the third-stage temperature is 210°C, the screw speed is 60r / min, and the aspect ratio is 45:1.

[0117] Example 3

[0118] A highly light-transmitting aromatic polycarbonate antistatic film is prepared from the following raw materials in parts by weight:

[0119] Aromatic polycarbonate 50 parts

[0120] Polyphenylene sulfide 15 parts

[0121] 5 parts of polyfluorene modified metal nanoparticles

[0122] 3 parts of polyoxyethylene-epichlorohydrin copolymer

[0123] 4 portions of boron nitride nanosheets, wherein the graphene nanosheets have a thickness of 4 nm, a width of 7 nm, and a length of 16 nm.

[0124] The preparation steps of the polyfluorene-modified metal nanoparticles are as follows: (1) dissolving 25 g of 2,7-di-tert-butylfluorene in 200 mL of chloroform solvent, adding 17 mg of FeCl3 and 6 g of silver nanoparticles (particle size 400 nm); (2) placing the reaction container in a water bath at 2° C. and stirring for 20 min; then dropping 8 mL of Br2 into the reaction container and stirring to allow the system to react for 5 h; (3) after the reaction is completed, adding an excess of potassium hydroxide solution to the reactor, extracting with chloroform, filtering the oil phase, and distilling under reduced pressure to obtain polyfluorene-modified copper nanoparticles. The particles are then recrystallized and purified.

[0125] The above-mentioned method for preparing a highly light-transmitting aromatic polycarbonate antistatic film comprises the following steps:

[0126] (1) Weighing each raw material according to the ingredients and mixing them evenly to obtain a blend;

[0127] (2) melt-blending the above blended materials through a screw extruder;

[0128] (3) Blowing and cooling: After the blend is extruded through the die head, it is blown and squeezed into a film through a herringbone plate and a traction guide roller. After cooling, it is corona-treated and rolled up to obtain an antistatic film.

[0129] The first-stage temperature of the screw extruder is 175°C, the second-stage temperature is 215°C, the third-stage temperature is 210°C, the screw speed is 60r / min, and the aspect ratio is 45:1.

[0130] The antistatic films prepared in Examples 1-3 and Comparative Examples 1-3 were tested, including: measuring the transmittance according to the standard GB / T2410-2008, measuring the resistivity according to the standard GB / T1410-06 to assess the antistatic performance,

[0131] The surface hardness is tested according to the standard GB / T6739-1996. The greater the surface hardness, the more scratch-resistant it is to a certain extent.

[0132] The test results are recorded in Table 1 below.

[0133] Table 1

[0134]

[0135] From the data in Table 1 above, we can see that:

[0136] 1. The light transmittance of the antistatic film prepared in this application is greater than 95%, and the resistivity is less than 8×10 6 Ω·cm; has high light transmittance, good surface hardness and scratch resistance.

[0137] 2. The difference between Comparative Example 1 and Example 3 is that Comparative Example 1 only uses silver nanoparticles, and the corresponding antistatic film has a light transmittance of only 86.5%, which is significantly lower than 97.8% of Example 3; this shows that the modification of silver nanoparticles by polyfluorene can significantly improve the light transmittance; due to the lack of polyfluorene modification, it exhibits the excellent conductivity of silver, and thus exhibits a lower resistivity; its antistatic performance is better in comparison; this shows that although the polyfluorene modification allows the silver nanoparticles to be encapsulated, which can improve the light transmittance, it has some impact on the antistatic performance.

[0138] 3. The difference between Comparative Example 2 and Example 3 is that Comparative Example 2 does not contain polyphenylene sulfide, and the corresponding antistatic film has a slight decrease in light transmittance, but the degree of decrease is not obvious; however, the surface hardness of the antistatic film decreases from 6H to 4H, indicating that the presence of polyphenylene sulfide has a significant effect on the overall hardness and scratch resistance of the film.

[0139] 4. The difference between Comparative Example 3 and Example 3 is that Comparative Example 2 does not contain polyaniline, and the light transmittance of the corresponding antistatic film decreases to a certain extent, and the resistivity increases significantly to 10.2×10 6 Ω·cm; this is because polyaniline is a good conductive polymer material. Without adding polyaniline, the conductivity of the aromatic polycarbonate material decreases.

[0140] The present invention is not limited to the above embodiments, and may have many variations. All variations that can be directly derived or associated with the contents disclosed by a person skilled in the art should be considered as falling within the protection scope of the present invention.

Claims

1. A highly light-transmitting aromatic polycarbonate antistatic film, characterized in that: The preparation method comprises the following raw materials in parts by weight: Aromatic polycarbonate 40-60 parts Polyphenylene sulfide 10-20 parts Polyaniline 5-10 parts 3-7 parts of polyfluorene modified metal nanoparticles 1-4 parts of polyoxyethylene-epichlorohydrin copolymer 2 to 6 parts of boron nitride nanosheets; The preparation steps of the polyfluorene-modified metal nanoparticles are as follows: (1) dissolving 20-30 g of 2,7-di-tert-butylfluorene in 200 mL of chloroform solvent, adding 15-20 mg of FeCl3 and 5-10 g of metal nanoparticles; (2) placing a reaction container in a water bath at 0-5° C. and stirring for 20-30 min; then dropping 7-10 mL of Br2 into the reaction container and stirring the system for 4-5 h; (3) after the reaction is completed, adding an excess of potassium hydroxide solution into the reactor, extracting with chloroform, filtering the oil phase, and distilling under reduced pressure to obtain the polyfluorene-modified metal nanoparticles; The metal nanoparticles are one or more of silver, copper and gold; the particle size of the metal nanoparticles is 300-500nm.

2. The highly light-transmitting aromatic polycarbonate antistatic film according to claim 1, characterized in that: The preparation method comprises the following raw materials in parts by weight: Aromatic polycarbonate 45-55 parts Polyphenylene sulfide 13-18 parts Polyaniline 7-9 parts 5-6 parts of polyfluorene modified metal nanoparticles 2-3 parts of polyoxyethylene-epichlorohydrin copolymer 3 to 5 parts of boron nitride nanosheets.

3. The highly light-transmitting aromatic polycarbonate antistatic film according to any one of claims 1 to 2, characterized in that: The boron nitride nanosheet has a thickness of 3 to 5 nm, a width of 5 to 10 nm, and a length of 12 to 20 nm.

4. The highly light-transmitting aromatic polycarbonate antistatic film according to any one of claims 1 to 2, characterized in that: The raw materials also include 1 to 5 parts of auxiliary agents; the auxiliary agents include one or more of antioxidants, lubricants, and anti-ultraviolet light absorbers.

5. The highly light-transmitting aromatic polycarbonate antistatic film according to any one of claims 1 to 2, characterized in that: The highly light-transmitting aromatic polycarbonate antistatic film has a light transmittance of more than 95% and a resistivity of less than 8×10 6 Ω·cm.

6. A method for preparing a highly light-transmitting aromatic polycarbonate antistatic film as claimed in any one of claims 1 to 2, characterized in that: The preparation method comprises the following steps: (1) Weighing each raw material according to the ingredients and mixing them evenly to obtain a blend; (2) melt-blending the above blended materials through a screw extruder; (3) Blowing and cooling: After the blend is extruded through the die head, it is blown and squeezed into a film through a herringbone plate and a traction guide roller. After cooling, it is corona-treated and rolled up to obtain an antistatic film.

7. The method for preparing a highly light-transmitting aromatic polycarbonate antistatic film according to claim 6, characterized in that: The first section temperature of the screw extruder is 170-190°C, the second section temperature is 200-230°C, the third section temperature is 210-220°C, the screw speed is 50-80r / min, and the aspect ratio is 40-50:1.

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