A method for preparing a highly flame-retardant and antistatic modified ABS material

Abstract

This invention belongs to the field of polymer materials, specifically relating to a method for preparing a highly flame-retardant and antistatic ABS modified material. The method includes: the mass ratio of the ABS modified material as follows: 65-75 parts ABS resin, 6-15 parts electrostatic modified flame retardant, 1-3 parts toughening agent, 0.5-1 part antioxidant, 0.5-1 part lubricant, and 1-2 parts compatibilizer. The specific preparation method has been verified. This invention solves the shortcomings of existing ABS in terms of antistatic and flame retardancy. It utilizes graphene-containing polydopamine to encapsulate expanded vermiculite as a flame retardant and conductive agent. The dense carbon layer formed after the combustion of polydopamine and graphene, combined with expanded vermiculite, forms a flame-retardant layer that isolates the system. Simultaneously, graphene doped with polydopamine forms a surface conductive layer, resulting in excellent antistatic effects.

Description

Technical Field

[0001] This invention belongs to the field of polymer materials, specifically relating to a method for preparing a highly flame-retardant and antistatic modified ABS material. Background Technology

[0002] ABS is an acrylonitrile-butadiene-styrene copolymer, possessing excellent impact strength, processing fluidity, and surface gloss, and is widely used in electronics, electrical appliances, and automotive interior lighting. However, ABS resin is a copolymer of three monomers: acrylonitrile, butadiene, and styrene. The higher the butadiene content, the stronger its flammability. The presence of substituted tertiary carbon atoms in the polybutadiene phase facilitates the removal of hydrogen from butadiene by oxygen, initiating a chain reaction that accelerates material degradation and makes combustion more likely to occur and spread. Simultaneously, its high surface resistivity makes it prone to surface static charge accumulation, which not only attracts dust but also directly affects the operation of electronic devices and can even cause short circuits. Therefore, flame retardancy and antistatic properties are currently the main research directions for expanding the application range of ABS materials.

[0003] Currently, low molecular weight organic antistatic agents are commonly used in industry to improve the antistatic properties of ABS, such as quaternary ammonium salts and betaine. These low molecular weight antistatic agents are mostly liquid or low-melting-point waxy substances. Low molecular weight organic antistatic agents migrate to the surface, causing problems such as blooming and stickiness on the product surface. Furthermore, low molecular weight organic antistatic agents have poor wash resistance and will peel off after prolonged friction or washing. While macromolecular antistatic agents eliminate migration, they lead to a sharp decline in mechanical properties. Commonly used flame retardants in industry include halogenated flame retardants, halogen-free flame retardants, and inorganic flame retardants. However, halogenated flame retardants release large amounts of smoke and dust in the combustion chamber, and this smoke and dust contains halogen-containing gases, making environmental compliance difficult. Halogen-free flame retardants have low flame retardant efficiency and poor compatibility with ABS, requiring extremely high dispersion. Inorganic flame retardants require higher addition amounts and have extremely poor compatibility with ABS polymers. Therefore, there is still significant room for improvement in the flame retardancy and antistatic properties of modified ABS materials. Summary of the Invention

[0004] To address the problems in the existing technology, the present invention provides a solution to the deficiencies of existing ABS in terms of antistatic and flame retardancy. It utilizes graphene-containing polydopamine to encapsulate expanded vermiculite as a flame retardant and conductive agent. The dense carbon layer formed after the combustion of polydopamine and graphene, together with the expanded vermiculite, forms a flame retardant layer that isolates the system. At the same time, graphene doped with polydopamine forms a surface conductive layer, resulting in excellent antistatic effect.

[0005] To achieve the above technical objectives, the technical solution of the present invention is as follows: A method for preparing a highly flame-retardant and antistatic ABS modified material includes: the mass ratio of the ABS modified material and the preparation steps of the ABS modified material.

[0006] The mass ratio of the modified ABS material is as follows: 65-75 parts ABS resin, 6-15 parts electrostatic modified flame retardant, 1-3 parts toughening agent, 0.5-1 part antioxidant, 0.5-1 part lubricant, and 1-2 parts compatibilizer.

[0007] The electrostatically modified flame retardant is a composite flame retardant material with graphene-containing polydopamine as the surface coating layer, expanded vermiculite as the porous support core and flame-retardant core, and silane material as the inner framework. Expanded vermiculite is a vermiculite material that has undergone thermal expansion and has good porous properties. The supporting properties of the silicon-oxygen structure are used to form an inner surface support within the porous structure of expanded vermiculite. At the same time, expanded vermiculite can act as a synergistic flame retardant material, forming a dense inorganic heat-insulating and oxygen-barrier carbon layer on the surface, blocking heat and oxygen transfer, and inhibiting the release of pyrolytic combustibles. Meanwhile, the graphene-containing polydopamine can form a dense carbon film on the surface of expanded vermiculite, providing excellent physical barrier effects. Graphene-containing polydopamine can form an encapsulating film on the outer surface of expanded vermiculite, completely sealing and covering the vermiculite while preserving its internal porous structure. This significantly enhances the activity of functional groups and the surface conductivity of the expanded vermiculite. This conductivity, combined with the dispersibility of expanded vermiculite, forms a stable conductive network in ABS material, thereby achieving an antistatic effect. Furthermore, the functional group activity improves the bonding stability of expanded vermiculite-based flame retardants in ABS material, effectively addressing the compatibility issues of inorganic fillers in ABS.The preparation of the electrostatic modified flame retardant includes: a1, ultrasonically cleaning expanded vermiculite in water for 30 minutes, removing it and drying it to obtain clean expanded vermiculite, wherein the mass ratio of expanded vermiculite to water is 1:10, the ultrasonic frequency is 80kHz, and the temperature is 20℃; this step utilizes the fluidity of water and the explosiveness of ultrasonic vibration in the aqueous phase to remove impurities and unstable particles from the expanded vermiculite, obtaining expanded vermiculite particles with stable structure and clean surface; a2, placing the expanded vermiculite particles in a trichloromethylsilane diethyl ether solution and stirring at a constant temperature for 30 minutes, cooling it and letting it stand for 30 minutes, then drying it at a constant temperature to obtain supported modified expanded vermiculite, wherein the trichloromethylsilane diethyl ether solution is used to clean the expanded vermiculite. The trichlorosilane concentration in the silane ether solution is 50 g / L, the mass ratio of expanded vermiculite to trichloromethylsilane ether solution is 1:10, the temperature for sealed constant-temperature stirring is 40°C, the atmosphere for settling is a humid environment, and the temperature for constant-temperature drying is 80°C. This step utilizes the adsorption properties of expanded vermiculite to directly adsorb the trichloromethylsilane in the ether solution into the expanded vermiculite structure, and constant-temperature stirring is used to release surface bubbles, thereby ensuring that the trichloromethylsilane adheres to the expanded vermiculite. During the settling process, the humid environment introduces a large number of water molecules, which can convert trichloromethylsilane into trihydroxymethylsilane, and condensation occurs during constant-temperature drying, thus obtaining... To obtain a silicon-oxygen structure; a3, graphene oxide is added to water and ultrasonically dispersed to form a uniform dispersion, then dopamine hydrochloride buffer is added and stirred to obtain a mixed coating solution. The concentration of graphene oxide in the coating solution is 5 g / L, the concentration of dopamine hydrochloride is 20 g / L, the pH is 8.5, the ultrasonic dispersion frequency is 70 kHz, and the temperature is 10℃; a4, the supported modified expanded vermiculite is placed in the mixed coating solution and left to stand for 20 min, then removed, dried, and reacted at a constant temperature for 1 h. The above operation is repeated 3 times to obtain coated expanded vermiculite. The mass ratio of the supported modified expanded vermiculite to the mixed coating solution is 1:7, and the standing temperature is 20℃. The isothermal reaction temperature is 50℃. This step utilizes a non-stirred environment to form a low-viscosity liquid film. During the isothermal reaction, the graphene oxide and dopamine hydrochloride undergo an in-situ reduction reaction, converting the graphene oxide into graphene. The dopamine hydrochloride undergoes a self-polymerization reaction to form polydopamine, thus forming a graphene-polydopamine composite coating layer on the surface of the expanded vermiculite. Through repeated operations, the viscosity of the composite coating layer can effectively improve the subsequent adhesion amount, eliminating the problem of the coating layer being too thin and having poor stability. a5. The coated expanded vermiculite is kept at a constant temperature for 3 hours to obtain electrostatically modified expanded vermiculite. The atmosphere for the constant temperature is a nitrogen atmosphere at a temperature of 60℃. The electrostatically modified expanded vermiculite prepared in this step uses expanded vermiculite containing silicon oxide materials as a support carrier and polydopamine containing graphene as an active coating layer and a conductive layer.

[0008] The toughening agent is made of nano-silica. Nano-silica plays a role in the small particle size dispersion of the entire ABS, with extremely strong fluidity. Moreover, it has a large number of unsaturated residual bonds and hydroxyl groups in its structure, which can bond with the substrate. Distributed in the ABS, it plays a role in excellent ductility, toughness and mechanical strength.

[0009] The antioxidant is one of antioxidant 1010, antioxidant 1076, and antioxidant 168.

[0010] The lubricant used is butyl stearate.

[0011] The compatibilizer is a methyl methacrylate-butadiene-polyethylene terpolymer.

[0012] The preparation steps of the ABS modified material include: Step 1: Weigh the raw materials according to the mass ratio, and put the weighed raw materials into the mixer and stir for 10-20 minutes to obtain the mixture; Step 2: The mixture is melt-extruded in the upper screw extruder and granulated to obtain a high flame-retardant and antistatic ABS modified material. In the twin-screw extruder, the temperature of zone 1 is 100-110℃, zone 2 is 180-210℃, zone 3 is 190-220℃, zone 4 is 190-220℃, zone 5 is 190-220℃, and the granulation temperature is 200-220℃.

[0013] As can be seen from the above description, the present invention has the following advantages: 1. This invention solves the defects of existing ABS in terms of antistatic and flame retardancy. It utilizes graphene-containing polydopamine to encapsulate expanded vermiculite as a flame retardant and conductive agent. The dense carbon layer formed after the combustion of polydopamine and graphene, together with expanded vermiculite, forms a flame retardant layer that isolates the system. At the same time, graphene doped with polydopamine forms a surface conductive layer, resulting in excellent antistatic effect.

[0014] 2. This invention utilizes the reducing properties of dopamine hydrochloride and its self-polymerization characteristics to react in situ on the surface of expanded vermiculite, converting graphene oxide into graphene in situ, and then using polydopamine to homogeneously disperse and fix it.

[0015] 3. This invention utilizes the solubility and hydrolysis of trichloromethylsilane, combined with the adsorption properties of expanded vermiculite, to form a supporting silicon-oxygen framework within expanded vermiculite through in-situ condensation reaction of silanol groups, effectively improving the brittleness of expanded vermiculite. Detailed Implementation

[0016] The present invention will be described in detail with reference to the embodiments, but the claims of the present invention are not intended to limit the scope of the invention.

[0017] The electrostatic modified flame retardant is a composite flame retardant material with graphene-containing polydopamine as the surface coating layer, expanded vermiculite as the porous support core and flame retardant core, and silane material as the inner framework. The preparation of the electrostatic modified flame retardant includes: a1, ultrasonically cleaning expanded vermiculite in water for 30 minutes, removing it and drying it to obtain clean expanded vermiculite, wherein the mass ratio of expanded vermiculite to water is 1:10, the ultrasonic frequency is 80kHz, and the temperature is 20℃; a2, placing expanded vermiculite particles into a trichloromethylsilane ether solution and stirring at a constant temperature for 30 minutes, cooling it and letting it stand for 30 minutes, and then drying it at a constant temperature to obtain supported modified expanded vermiculite, wherein the mass concentration of trichlorosilane in the trichlorosilane ether solution is 50g / L, the mass ratio of expanded vermiculite to trichloromethylsilane ether solution is 1:10, the temperature of the sealed constant temperature stirring is 40℃, the atmosphere for standing is a humid environment, and the temperature of the constant temperature drying is 80℃; a3, adding graphene oxide to water and ultrasonically separating... A uniform dispersion was formed, and then dopamine hydrochloride buffer was added and stirred to obtain a mixed coating solution. The concentration of graphene oxide in the coating solution was 5 g / L, the concentration of dopamine hydrochloride was 20 g / L, the pH was 8.5, the ultrasonic dispersion frequency was 70 kHz, and the temperature was 10℃. a4, the supported modified expanded vermiculite was placed in the mixed coating solution and allowed to stand for 20 min, then removed, dried, and reacted at a constant temperature for 1 h. The above operation was repeated 3 times to obtain coated expanded vermiculite. The mass ratio of the supported modified expanded vermiculite to the mixed coating solution was 1:7. The standing temperature was 20℃, and the constant temperature reaction temperature was 50℃. a5, the coated expanded vermiculite was kept at a constant temperature for 3 h to obtain electrostatic modified expanded vermiculite. The constant temperature standing atmosphere was a nitrogen atmosphere, and the temperature was 60℃. Example 1

[0018] A method for preparing a highly flame-retardant and antistatic ABS modified material includes: the mass ratio of the ABS modified material and the preparation steps of the ABS modified material.

[0019] The mass ratio of the modified ABS material is as follows: 75 parts ABS resin, 15 parts electrostatic modified flame retardant, 3 parts toughening agent, 0.5 parts antioxidant, 1 part lubricant, and 1 part compatibilizer.

[0020] The toughening agent is made of nano-silica.

[0021] The antioxidant used is antioxidant 1010.

[0022] The lubricant used is butyl stearate.

[0023] The compatibilizer is a methyl methacrylate-butadiene-polyethylene terpolymer.

[0024] The preparation steps of the ABS modified material include: Step 1: Weigh the raw materials according to the mass ratio, and put the weighed raw materials into the mixer and stir for 20 minutes to obtain the mixture; Step 2: The mixture is melt-extruded in the upper screw extruder and granulated to obtain a high flame-retardant and antistatic ABS modified material. In the twin-screw extruder, the temperature of zone 1 is 100℃, zone 2 is 180℃, zone 3 is 220℃, zone 4 is 220℃, zone 5 is 220℃, and the granulation temperature is 200℃. Example 2

[0025] A method for preparing a highly flame-retardant and antistatic ABS modified material includes: the mass ratio of the ABS modified material and the preparation steps of the ABS modified material.

[0026] The mass ratio of the modified ABS material is as follows: 65 parts ABS resin, 6 parts electrostatic modified flame retardant, 1 part toughening agent, 1 part antioxidant, 0.5 parts lubricant, and 2 parts compatibilizer.

[0027] The toughening agent is made of nano-silica.

[0028] The antioxidant used is antioxidant 1076.

[0029] The lubricant used is butyl stearate.

[0030] The compatibilizer is a methyl methacrylate-butadiene-polyethylene terpolymer.

[0031] The preparation steps of the ABS modified material include: Step 1: Weigh the raw materials according to the mass ratio, and put the weighed raw materials into the mixer and stir for 20 minutes to obtain the mixture; Step 2: The mixture is melt-extruded in the upper screw extruder and granulated to obtain a high flame-retardant and antistatic ABS modified material. In the twin-screw extruder, the temperature of zone 1 is 100℃, zone 2 is 200℃, zone 3 is 210℃, zone 4 is 210℃, and zone 5 is 220℃. The granulation temperature is 220℃. Example 3

[0032] A method for preparing a highly flame-retardant and antistatic ABS modified material includes: the mass ratio of the ABS modified material and the preparation steps of the ABS modified material.

[0033] The mass ratio of the modified ABS material is as follows: 70 parts ABS resin, 12 parts electrostatic modified flame retardant, 2 parts toughening agent, 1 part antioxidant, 1 part lubricant, and 1 part compatibilizer.

[0034] The toughening agent is made of nano-silica.

[0035] The antioxidant used is antioxidant 168.

[0036] The lubricant used is butyl stearate.

[0037] The compatibilizer is a methyl methacrylate-butadiene-polyethylene terpolymer.

[0038] The preparation steps of the ABS modified material include: Step 1: Weigh the raw materials according to the mass ratio, and put the weighed raw materials into the mixer and stir for 15 minutes to obtain the mixture; Step 2: The mixture is melt-extruded in the upper screw extruder and granulated to obtain a high flame-retardant and antistatic ABS modified material. In the twin-screw extruder, the temperature of zone 1 is 110℃, zone 2 is 200℃, zone 3 is 200℃, zone 4 is 210℃, and zone 5 is 190-220℃. The granulation temperature is 210℃.

[0039] Comparative Example 1 A method for preparing an ABS modified material includes: a mass ratio of the ABS modified material and preparation steps of the ABS modified material.

[0040] The mass ratio of the modified ABS material is as follows: 70 parts ABS resin, 12 parts flame retardant, 2 parts toughening agent, 1 part antioxidant, 1 part lubricant, 1 part compatibilizer, and 1 part graphene antistatic agent.

[0041] The flame retardant uses silane-modified expanded vermiculite, comprising: a1, ultrasonically cleaning the expanded vermiculite in water for 30 minutes, removing it and drying it to obtain clean expanded vermiculite, wherein the mass ratio of expanded vermiculite to water is 1:10, the ultrasonic frequency is 80kHz, and the temperature is 20℃; a2, placing the expanded vermiculite particles into a trichloromethylsilane ether solution and stirring at a constant temperature for 30 minutes, cooling it and letting it stand for 30 minutes, and then drying it at a constant temperature to obtain silane-modified expanded vermiculite, wherein the mass concentration of trichlorosilane in the trichlorosilane ether solution is 50g / L, the mass ratio of expanded vermiculite to trichloromethylsilane ether solution is 1:10, the temperature of the sealed constant temperature stirring is 40℃, the atmosphere for standing is a humid environment, and the temperature of the constant temperature drying is 80℃.

[0042] The toughening agent is made of nano-silica.

[0043] The antioxidant used is antioxidant 168.

[0044] The lubricant used is butyl stearate.

[0045] The compatibilizer is a methyl methacrylate-butadiene-polyethylene terpolymer.

[0046] The preparation steps of the ABS modified material include: Step 1: Weigh the raw materials according to the mass ratio, and put the weighed raw materials into the mixer and stir for 15 minutes to obtain the mixture; Step 2: The mixture is melt-extruded in the upper screw extruder and granulated to obtain a high flame-retardant and antistatic ABS modified material. In the twin-screw extruder, the temperature of zone 1 is 110℃, zone 2 is 200℃, zone 3 is 200℃, zone 4 is 210℃, and zone 5 is 190-220℃. The granulation temperature is 210℃.

[0047] Comparative Example 2 A method for preparing an ABS modified material includes: a mass ratio of the ABS modified material and preparation steps of the ABS modified material.

[0048] The mass ratio of the modified ABS material is: 70 parts ABS resin, 12 parts flame retardant, 2 parts toughening agent, 1 part antioxidant, 1 part lubricant, and 1 part compatibilizer.

[0049] The flame retardant uses silane-modified expanded vermiculite, comprising: a1, ultrasonically cleaning the expanded vermiculite in water for 30 minutes, removing it and drying it to obtain clean expanded vermiculite, wherein the mass ratio of expanded vermiculite to water is 1:10, the ultrasonic frequency is 80kHz, and the temperature is 20℃; a2, placing the expanded vermiculite particles into a trichloromethylsilane ether solution and stirring at a constant temperature for 30 minutes, cooling it and letting it stand for 30 minutes, and then drying it at a constant temperature to obtain silane-modified expanded vermiculite, wherein the mass concentration of trichlorosilane in the trichlorosilane ether solution is 50g / L, the mass ratio of expanded vermiculite to trichloromethylsilane ether solution is 1:10, the temperature of the sealed constant temperature stirring is 40℃, the atmosphere for standing is a humid environment, and the temperature of the constant temperature drying is 80℃.

[0050] The toughening agent is made of nano-silica.

[0051] The antioxidant used is antioxidant 168.

[0052] The lubricant used is butyl stearate.

[0053] The compatibilizer is a methyl methacrylate-butadiene-polyethylene terpolymer.

[0054] The preparation steps of the ABS modified material include: Step 1: Weigh the raw materials according to the mass ratio, and put the weighed raw materials into the mixer and stir for 15 minutes to obtain the mixture; Step 2: The mixture is melt-extruded in the upper screw extruder and granulated to obtain a high flame-retardant and antistatic ABS modified material. In the twin-screw extruder, the temperature of zone 1 is 110℃, zone 2 is 200℃, zone 3 is 200℃, zone 4 is 210℃, and zone 5 is 190-220℃. The granulation temperature is 210℃.

[0055] Comparative Example 3 A method for preparing an ABS modified material includes: a mass ratio of the ABS modified material and preparation steps of the ABS modified material.

[0056] The mass ratio of the modified ABS material is as follows: 70 parts ABS resin, 12 parts flame retardant, 2 parts toughening agent, 1 part antioxidant, 1 part lubricant, 1 part compatibilizer, and 1 part antistatic agent.

[0057] The flame retardant used is expanded vermiculite.

[0058] The toughening agent is made of nano-silica.

[0059] The antioxidant used is antioxidant 168.

[0060] The lubricant used is butyl stearate.

[0061] The compatibilizer is a methyl methacrylate-butadiene-polyethylene terpolymer.

[0062] The preparation steps of the ABS modified material include: Step 1: Weigh the raw materials according to the mass ratio, and put the weighed raw materials into the mixer and stir for 15 minutes to obtain the mixture; Step 2: The mixture is melt-extruded in the upper screw extruder and granulated to obtain a high flame-retardant and antistatic ABS modified material. In the twin-screw extruder, the temperature of zone 1 is 110℃, zone 2 is 200℃, zone 3 is 200℃, zone 4 is 210℃, and zone 5 is 190-220℃. The granulation temperature is 210℃.

[0063] Comparative Example 4 A method for preparing an ABS modified material includes: a mass ratio of the ABS modified material and preparation steps of the ABS modified material.

[0064] The mass ratio of the modified ABS material is: 70 parts ABS resin, 12 parts flame retardant, 2 parts toughening agent, 1 part antioxidant, 1 part lubricant, and 1 part compatibilizer.

[0065] The flame retardant used is expanded vermiculite.

[0066] The toughening agent is made of nano-silica.

[0067] The antioxidant used is antioxidant 168.

[0068] The lubricant used is butyl stearate.

[0069] The compatibilizer is a methyl methacrylate-butadiene-polyethylene terpolymer.

[0070] The preparation steps of the ABS modified material include: Step 1: Weigh the raw materials according to the mass ratio, and put the weighed raw materials into the mixer and stir for 15 minutes to obtain the mixture; Step 2: The mixture is melt-extruded in the upper screw extruder and granulated to obtain a high flame-retardant and antistatic ABS modified material. In the twin-screw extruder, the temperature of zone 1 is 110℃, zone 2 is 200℃, zone 3 is 200℃, zone 4 is 210℃, and zone 5 is 190-220℃. The granulation temperature is 210℃.

[0071] Performance testing Performance tests were conducted using Examples 1-3 and Comparative Examples 1-4, and the results are as follows: Example 1 <![CDATA[2.4×10 8 ]]> <![CDATA[8.9×10 8 ]]> V-0 19.6 Example 2 <![CDATA[1.5×10 8 ]]> <![CDATA[7.1×10 8 ]]> V-0 19.9 Example 3 <![CDATA[1.9×10 8 ]]> <![CDATA[7.9×10 8 ]]> V-0 19.7 Comparative Example 1 <![CDATA[8.5×10 8 ]]> <![CDATA[9.9×10 9 ]]> V-0 17.1 Comparative Example 2 V-0 16.7 Comparative Example 3 <![CDATA[8.7×10 9 ]]> <![CDATA[8.3×10 9 ]]> V-1 18.5 Comparative Example 4 V-1 17.9 Note: Comparative Examples 2 and 4 did not contain conductive agents, so they were not tested.

[0072] The above data comparison demonstrates that the graphene-containing polydopamine formed on the surface of expanded vermiculite in this technical solution can effectively improve the conductivity of expanded vermiculite and form a conductive network structure to achieve a stable conductive effect. At the same time, the polydopamine and graphene form a stable encapsulation structure on the vermiculite surface, which can form a dense carbon layer during combustion, improving the overall flame retardancy. The surface activity of polydopamine itself improves the surface connection problem of expanded vermiculite and enhances its stability in ABS modified materials. Compared with expanded vermiculite alone, both mechanical properties and flame retardancy are improved.

[0073] It is understood that the above detailed description of the present invention is for illustrative purposes only and is not intended to limit the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention to achieve the same technical effects; as long as the usage requirements are met, they are all within the protection scope of the present invention.

Claims

1. A method for preparing a highly flame-retardant and antistatic modified ABS material, characterized in that: The mass ratio of the modified ABS material is as follows: 65-75 parts ABS resin, 6-15 parts electrostatic modified flame retardant, 1-3 parts toughening agent, 0.5-1 part antioxidant, 0.5-1 part lubricant, and 1-2 parts compatibilizer.

2. The preparation method of the high flame-retardant and antistatic ABS modified material according to claim 1, characterized in that: The electrostatic modified flame retardant is a composite flame retardant material with graphene-containing polydopamine as the surface coating layer, expanded vermiculite as the core, and silane material as the inner framework.

3. The preparation method of the high flame-retardant and antistatic ABS modified material according to claim 1, characterized in that: The toughening agent is made of nano-silica.

4. The preparation method of the high flame-retardant and antistatic ABS modified material according to claim 1, characterized in that: The antioxidant is one of antioxidant 1010, antioxidant 1076, and antioxidant 168.

5. The preparation method of the high flame-retardant and antistatic ABS modified material according to claim 1, characterized in that: The lubricant used is butyl stearate.

6. The preparation method of the high flame-retardant and antistatic ABS modified material according to claim 1, characterized in that: The compatibilizer is a methyl methacrylate-butadiene-polyethylene terpolymer.

7. The preparation method of the high flame-retardant and antistatic ABS modified material according to claim 1, characterized in that: The preparation steps of the ABS modified material include: Step 1: Weigh the raw materials according to the mass ratio, and put the weighed raw materials into the mixer and stir for 10-20 minutes to obtain the mixture; Step 2: The mixture is put into the upper screw extruder for melt extrusion, and after granulation, a high flame retardant and antistatic ABS modified material is obtained.

8. The preparation method of the high flame-retardant and antistatic ABS modified material according to claim 7, characterized in that: In the twin-screw extruder, the temperature in zone one is 100-110℃, the temperature in zone two is 180-210℃, the temperature in zone three is 190-220℃, the temperature in zone four is 190-220℃, and the temperature in zone five is 190-220℃.

9. The preparation method of the high flame-retardant and antistatic ABS modified material according to claim 7, characterized in that: The granulation temperature is 200-220℃.