Antistatic polyvinyl chloride material as well as preparation method and application thereof

Abstract

The invention belongs to the technical field of composite materials, and provides an antistatic polyvinyl chloride material and a preparation method and application thereof. The product is prepared from the following raw materials in parts by mass: 10-60 parts of polyvinyl chloride resin, 3-8 parts of chlorinated polyethylene, 2-4 parts of an acrylonitrile-butadiene-styrene copolymer, 80-140 parts of calcium carbonate, 2-10 parts of glass fibers, 1-3 parts of an antistatic agent, 5-15 parts of a plasticizer, 4-7 parts of a stabilizer, 2-6 parts of a lubricant and 1-2 parts of an anti-aging agent. Polyvinyl chloride resin is used as a main framework material, so that the mechanical strength of the product can be ensured; the use of chlorinated polyethylene enhances the intermolecular force through a polar chain segment, so that the toughness of the material is remarkably improved; the acrylonitrile-butadiene-styrene copolymer is added, so that the impact resistance and the surface glossiness of the product can be improved; through combination of the modified multi-walled carbon nanotubes, polypyrrole and carbon black, the effect of removing static electricity of the polyvinyl chloride material is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of composite materials, and particularly relates to an antistatic polyvinyl chloride material and a preparation method and application thereof. BACKGROUND

[0002] The polyvinyl chloride floor is a new type of light ground decoration material, also known as light ground material. It has excellent performance, good recovery ability to static load, and can effectively recover the concave situation caused by heavy objects in the natural state. And it has excellent resistance to acid, alkali and organic solvents, and compared with wood floor or other floor, it is simple to process and low in repair cost after being eroded by chemicals. Therefore, the polyvinyl chloride floor has become the first choice of ground material in various scenes due to its comprehensive performance and environmental protection advantages, and is applied in various scenes. However, the main component of the floor is polyvinyl chloride, which has high resistance as a polymer material, and the charge cannot be naturally conducted, which will cause static electricity accumulation; meanwhile, after the human body or objects rub against the floor, the electron transfer causes charge separation to form static electricity. The existence of static electricity of the floor will affect the human body or electronic equipment, and even cause fire due to a large amount of static electricity. Therefore, how to eliminate static electricity and provide an antistatic polyvinyl chloride material has become a problem to be solved. SUMMARY

[0003] The present application aims to overcome the existence of static electricity of the floor, and provide an antistatic polyvinyl chloride material and a preparation method and application thereof.

[0004] In order to achieve the above-mentioned application purposes, the present application provides the following technical solutions: The present application provides an antistatic polyvinyl chloride material, which is prepared from raw materials containing the following mass fractions: 10-60 parts of polyvinyl chloride resin, 3-8 parts of chlorinated polyethylene, 2-4 parts of acrylonitrile-butadiene-styrene copolymer, 80-140 parts of calcium carbonate, 2-10 parts of glass fiber, 1-3 parts of antistatic agent, 5-15 parts of plasticizer, 4-7 parts of stabilizer, 2-6 parts of lubricant and 1-2 parts of anti-aging agent.

[0005] Preferably, the number average molecular weight of the polyvinyl chloride resin is 75000-94000.

[0006] Preferably, the particle size of the calcium carbonate is 300-500 mesh. The length of the glass fiber is 1-2 mm.

[0007] Preferably, the antistatic agent comprises modified multi-walled carbon nanotubes, polypyrrole and carbon black. The mass ratio of the modified multi-walled carbon nanotubes, polypyrrole and carbon black is 1:0.5-0.8:0.1-0.2.

[0008] As preferred, the preparation method of the modified multi-walled carbon nanotube comprises the following steps: The multi-walled carbon nanotube is placed in a mixed gas for oxidation to obtain the modified multi-walled carbon nanotube; The mixed gas comprises nitrogen and oxygen, and the concentration of the oxygen is 10-20 vol%; The flow rate of the mixed gas is 50-100 ml / min; The temperature rising rate of the oxidation is 5-10 ℃ / min, the target temperature is 300-350 ℃, and the time is 1-4 h.

[0009] As preferred, the plasticizer is isooctyl diphenyl phosphate and / or oxidized polyethylene wax; The stabilizer is one or more of dibutyl tin maleate, octyl tin mercaptide and dibutyl tin dilaurate; The lubricant is PE wax and / or stearic acid; The anti-aging agent is antioxidant 264 and / or antioxidant 1024.

[0010] The application further provides a preparation method of the anti-static polyvinyl chloride material, comprising the following steps: (1) mixing polyvinyl chloride resin, chlorinated polyethylene, acrylonitrile-butadiene-styrene copolymer, plasticizer, stabilizer and anti-aging agent to obtain a preliminary system; (2) mixing the preliminary system, calcium carbonate, glass fiber, anti-static agent and lubricant to obtain a mixed system; (3) sequentially performing extrusion and molding on the mixed system to obtain the anti-static polyvinyl chloride material.

[0011] As preferred, the rotation speed of the mixing in step (1) is 1000-1500 rpm, the time is 5-10 min, and the temperature is 110-120 ℃; The rotation speed of the mixing in step (2) is 100-200 rpm, the time is 20-30 min, and the temperature is 30-40 ℃.

[0012] As preferred, in step (3), the conveying section temperature of the extrusion is 125-140 ℃, the compression section temperature is 140-145 ℃, and the head temperature is 160-165 ℃; The three-roll temperature of the molding is 80-90 ℃, and the thickness error is ≤0.2 mm.

[0013] The application further provides an application of the anti-static polyvinyl chloride material in floor.

[0014] The application provides an antistatic polyvinyl chloride material, which is prepared from raw materials containing the following components in parts by mass: 10-60 parts of polyvinyl chloride resin, 3-8 parts of chlorinated polyethylene, 2-4 parts of acrylonitrile-butadiene-styrene copolymer, 80-140 parts of calcium carbonate, 2-10 parts of glass fiber, 1-3 parts of antistatic agent, 5-15 parts of plasticizer, 4-7 parts of stabilizer, 2-6 parts of lubricant and 1-2 parts of anti-aging agent. In the application, the polyvinyl chloride resin serves as a main skeleton material, which can ensure the mechanical strength of the product; the use of the chlorinated polyethylene can significantly improve the toughness of the material by enhancing the intermolecular force through the polar chain segment; the addition of the acrylonitrile-butadiene-styrene copolymer can improve the impact resistance and surface gloss of the product; the use of the calcium carbonate can improve the rigidity, but the excessive use can increase the brittleness; and the glass fiber can enhance the dimensional stability and ensure the use of the product.

[0015] In the application, the antistatic agent is a combination of modified multi-walled carbon nanotubes, polypyrrole and carbon black; the multi-walled carbon nanotubes are modified under the action of oxygen and temperature, so that the density of hydroxyl groups on the surface of the multi-walled carbon nanotubes is significantly improved to obtain hydroxylated multi-walled carbon nanotubes; the multi-walled carbon nanotubes are randomly dispersed in the composite material and contact with each other to form a continuous conductive path, thereby constructing a good electrostatic discharge channel and improving the antistatic performance of the material; the hydroxyl groups on the surface of the multi-walled carbon nanotubes can absorb water molecules in the environment by using the hydrophilic property of the hydroxyl groups to form a water molecule film, thereby significantly increasing the electrical conductivity of the material; the polypyrrole contains a large number of ions, which can impart a certain conductivity to the polyvinyl chloride material by changing the structure of the polymer; and the carbon black can form a conductive network to connect the modified multi-walled carbon nanotubes and the polypyrrole. The application can achieve the effect of removing static electricity from the polyvinyl chloride material by using the combination of the modified multi-walled carbon nanotubes, the polypyrrole and the carbon black.

[0016] In the application, the stabilizer can prevent the polyvinyl chloride resin from degrading due to heat, light and other factors during processing and use, thereby prolonging the service life of the material. The lubricant can improve the flowability of the material during processing, prevent the material from sticking to the equipment, and improve the processing efficiency.

[0017] The application further provides a preparation method of the antistatic polyvinyl chloride material, which comprises the following steps: (1) mixing polyvinyl chloride resin, chlorinated polyethylene, acrylonitrile-butadiene-styrene copolymer, plasticizer, stabilizer and anti-aging agent to obtain a preliminary system; (2) mixing the preliminary system, calcium carbonate, glass fiber, antistatic agent and lubricant to obtain a mixed system; and (3) sequentially performing extrusion and molding on the mixed system to obtain the antistatic polyvinyl chloride material. The method provided by the application is simple, and only needs to prevent the occurrence of thermal agglomeration in the secondary mixing, so the process requirement is low and the method is suitable for large-scale preparation. DETAILED DESCRIPTION

[0018] The application provides an antistatic polyvinyl chloride material, which is prepared from raw materials containing the following components in parts by mass: polyvinyl chloride resin 10-60 parts, chlorinated polyethylene 3-8 parts, acrylonitrile-butadiene-styrene copolymer 2-4 parts, calcium carbonate 80-140 parts, glass fiber 2-10 parts, antistatic agent 1-3 parts, plasticizer 5-15 parts, stabilizer 4-7 parts, lubricant 2-6 parts, and anti-aging agent 1-2 parts.

[0019] In the application, the mass fraction of the polyvinyl chloride resin is preferably 20-50 parts, further preferably 30-40 parts, and more preferably 34-36 parts.

[0020] In the application, the mass fraction of the chlorinated polyethylene is preferably 3.5-7.5 parts, further preferably 4-7 parts, and more preferably 5-6 parts.

[0021] In the application, the mass fraction of the acrylonitrile-butadiene-styrene copolymer is preferably 2.5-3.5 parts, further preferably 2.6-3.4 parts, and more preferably 2.8-3.2 parts.

[0022] In the application, the mass fraction of the calcium carbonate is preferably 85-135 parts, further preferably 90-130 parts, and more preferably 100-120 parts.

[0023] In the application, the mass fraction of the glass fiber is preferably 3-9 parts, further preferably 4-8 parts, and more preferably 5-7 parts.

[0024] In the application, the mass fraction of the antistatic agent is preferably 1.5-2.5 parts, further preferably 1.6-2.4 parts, and more preferably 1.8-2.2 parts.

[0025] In the application, the mass fraction of the plasticizer is preferably 6-14 parts, further preferably 7-13 parts, and more preferably 8-12 parts.

[0026] In the application, the mass fraction of the stabilizer is preferably 4.5-6.5 parts, further preferably 5-6 parts, and more preferably 5.4-5.5 parts.

[0027] In the application, the mass fraction of the lubricant is preferably 3-5 parts, further preferably 3.5-4.5 parts, and more preferably 3.8-4.2 parts.

[0028] In the application, the mass fraction of the anti-aging agent is preferably 1.1-1.9 parts, further preferably 1.2-1.8 parts, and more preferably 1.4-1.6 parts.

[0029] In the present application, the number average molecular weight of the polyvinyl chloride resin is preferably 75,000 to 94,000, further preferably 80,000 to 90,000, and more preferably 84,000 to 86,000.

[0030] In the present application, the particle size of the calcium carbonate is preferably 300 to 500 mesh, further preferably 350 to 450 mesh, and more preferably 380 to 420 mesh.

[0031] In the present application, the length of the glass fiber is preferably 1 to 2 mm, further preferably 1.2 to 1.8 mm, and more preferably 1.4 to 1.6 mm.

[0032] In the present application, the antistatic agent comprises modified multi-walled carbon nanotubes, polypyrrole, and carbon black.

[0033] In the present application, the mass ratio of the modified multi-walled carbon nanotubes, polypyrrole, and carbon black is preferably 1:0.5 to 0.8:0.1 to 0.2, further preferably 1:0.6 to 0.7:0.12 to 0.18, and more preferably 1:0.64 to 0.66:0.14 to 0.16.

[0034] In the present application, the method for preparing the modified multi-walled carbon nanotubes comprises the following steps: The multi-walled carbon nanotubes are placed in a mixed gas for oxidation to obtain modified multi-walled carbon nanotubes.

[0035] In the present application, the mixed gas comprises nitrogen and oxygen, and the concentration of the oxygen is preferably 10 to 20 vol%, further preferably 12 to 18 vol%, and more preferably 14 to 16 vol%.

[0036] In the present application, the flow rate of the mixed gas is preferably 50 to 100 ml / min, further preferably 60 to 90 ml / min, and more preferably 70 to 80 ml / min.

[0037] In the present application, the multi-walled carbon nanotubes are heated in a nitrogen atmosphere, and after reaching the target temperature, the mixed gas is switched.

[0038] In the present application, the heating rate of the oxidation is preferably 5 to 10℃ / min, further preferably 6 to 9℃ / min, and more preferably 7 to 8℃ / min; the target temperature is preferably 300 to 350℃, further preferably 310 to 340℃, and more preferably 320 to 330℃; and the time is preferably 1 to 4 h, further preferably 1.5 to 3.5 h, and more preferably 2 to 3 h.

[0039] In the present application, after the oxidation is completed, the nitrogen is switched, and the natural cooling to room temperature is performed.

[0040] In the present application, the plasticizer is one or more of the following: diphenyl isooctyl phosphate, and / or oxidized polyethylene wax.

[0041] In the present application, the stabilizer is one or more of the following: dibutyl tin maleate, octyl tin mercaptide, and dibutyl tin dilaurate.

[0042] In the present application, the lubricant is PE wax and / or stearic acid.

[0043] In the present application, the anti-aging agent is antioxidant 264 and / or antioxidant 1024.

[0044] The present application also provides a method for preparing the anti-static polyvinyl chloride material, comprising the following steps: (1) mixing polyvinyl chloride resin, chlorinated polyethylene, acrylonitrile-butadiene-styrene copolymer, plasticizer, stabilizer, and anti-aging agent to obtain a preliminary system; (2) mixing the preliminary system, calcium carbonate, glass fiber, anti-static agent, and lubricant to obtain a mixed system; (3) sequentially extruding and molding the mixed system to obtain the anti-static polyvinyl chloride material.

[0045] In the present application, the rotation speed of the mixing in step (1) is preferably 1000-1500 rpm, further preferably 1100-1400 rpm, and more preferably 1200-1300 rpm; the time is preferably 5-10 min, further preferably 6-9 min, and more preferably 7-8 min; and the temperature is preferably 110-120℃, further preferably 112-118℃, and more preferably 114-116℃.

[0046] In the present application, the rotation speed of the mixing in step (2) is preferably 100-200 rpm, further preferably 120-180 rpm, and more preferably 140-160 rpm; the time is preferably 20-30 min, further preferably 22-28 min, and more preferably 24-26 min; and the temperature is preferably 30-40℃, further preferably 32-38℃, and more preferably 34-36℃.

[0047] In the present application, in step (3), the temperature of the conveying section of the extrusion is preferably 125-140℃, further preferably 130-135℃, and more preferably 132-133; the temperature of the compression section is preferably 140-145℃, further preferably 141-144℃, and more preferably 142-143℃; and the temperature of the head is preferably 160-165℃, further preferably 161-164℃, and more preferably 162-163℃.

[0048] In the present application, the forming three-roller temperature is preferably 80-90℃, further preferably 82-88℃, and more preferably 84-86℃; the thickness error is preferably ≤0.2mm, further preferably ≤0.15mm, and more preferably ≤0.1mm.

[0049] The present application also provides the use of the antistatic polyvinyl chloride material in a floor.

[0050] The technical solutions provided by the present application are described in detail below in conjunction with the examples, but they should not be understood as limiting the scope of protection of the present application.

[0051] Example 1

[0052] Preparation of modified multi-walled carbon nanotubes: place the multi-walled carbon nanotubes in a nitrogen atmosphere, and heat to 330℃ at a rate of 8℃ / min; then switch to a mixed gas, the oxygen concentration in the mixed gas is 15vol%, and the flow rate is 80ml / min, oxidize for 2h under this condition; after oxidation, switch to nitrogen and cool to room temperature naturally to obtain modified multi-walled carbon nanotubes.

[0053] The following raw materials are configured in mass fraction: polyvinyl chloride resin 50 parts, chlorinated polyethylene 4 parts, acrylonitrile-butadiene-styrene copolymer 3 parts, calcium carbonate 90 parts, glass fiber 7 parts, antistatic agent 2 parts, plasticizer 6 parts, stabilizer 5 parts, lubricant 4 parts, and anti-aging agent 1 part; wherein the number average molecular weight of the polyvinyl chloride resin is 80000, the particle size of the calcium carbonate is 400 mesh, the length of the glass fiber is 1.5mm, in the antistatic agent, the mass ratio of modified multi-walled carbon nanotubes, polypyrrole and carbon black is 1:0.6:0.1; the plasticizer is diphenyl isooctyl phosphate; the stabilizer is dibutyl tin maleate; the lubricant is PE wax; and the anti-aging agent is antioxidant 264.

[0054] The specific preparation method is as follows: mix the polyvinyl chloride resin, chlorinated polyethylene, acrylonitrile-butadiene-styrene copolymer, plasticizer, stabilizer and anti-aging agent under the condition of 1200rpm and 110℃ for 5min to obtain a preliminary system; mix the preliminary system and the remaining raw materials under the condition of 35℃ and 150rpm for 25min to obtain a mixed system; extrude the mixed system, control the temperature of the conveying section to be 130℃, the temperature of the compression section to be 142℃, and the temperature of the die head to be 160℃; control the forming three-roller temperature to be 85℃, and control the thickness error to be 0.1mm to obtain the antistatic polyvinyl chloride material.

[0055] Example 2

[0056] Preparation of modified multi-walled carbon nanotubes: place the multi-walled carbon nanotubes in a nitrogen atmosphere, and heat to 310°C at a rate of 6°C / min; then switch to a mixed gas with an oxygen concentration of 18 vol% at a flow rate of 60 ml / min, and oxidize for 4 h under this condition; after oxidation, switch to nitrogen, and naturally cool to room temperature to obtain the modified multi-walled carbon nanotubes.

[0057] The following raw materials are configured in the following mass fractions: 48 parts of polyvinyl chloride resin, 8 parts of chlorinated polyethylene, 2.5 parts of acrylonitrile-butadiene-styrene copolymer, 80 parts of calcium carbonate, 3 parts of glass fiber, 1 part of antistatic agent, 12 parts of plasticizer, 4 parts of stabilizer, 5 parts of lubricant, and 1.1 parts of anti-aging agent; wherein the number average molecular weight of the polyvinyl chloride resin is 75,000, the particle size of the calcium carbonate is 320 mesh, the length of the glass fiber is 2 mm, the mass ratio of the modified multi-walled carbon nanotubes, polypyrrole, and carbon black in the antistatic agent is 1:0.5:0.2; the plasticizer is oxidized polyethylene wax; the stabilizer is octyltin mercaptide; the lubricant is stearic acid; and the anti-aging agent is antioxidant 1024.

[0058] The specific preparation method is as follows: the polyvinyl chloride resin, chlorinated polyethylene, acrylonitrile-butadiene-styrene copolymer, plasticizer, stabilizer, and anti-aging agent are mixed to obtain a preliminary system under the conditions of 1100 rpm and 120°C for 8 min; the preliminary system and the remaining raw materials are mixed to obtain a mixed system under the conditions of 40°C and 160 rpm for 20 min; the mixed system is extruded, and the conveying section temperature is controlled at 125°C, the compression section temperature is controlled at 140°C, and the die head temperature is controlled at 160°C; the three-roll temperature of the molding is controlled at 90°C, and the thickness error is controlled at 0.1 mm to obtain the antistatic polyvinyl chloride material.

[0059] Example 3

[0060] Preparation of modified multi-walled carbon nanotubes: place the multi-walled carbon nanotubes in a nitrogen atmosphere, and heat to 350°C at a rate of 8°C / min; then switch to a mixed gas with an oxygen concentration of 11 vol% at a flow rate of 90 ml / min, and oxidize for 2 h under this condition; after oxidation, switch to nitrogen, and naturally cool to room temperature to obtain the modified multi-walled carbon nanotubes.

[0061] The following raw materials are configured in the following mass fractions: polyvinyl chloride resin 30 parts, chlorinated polyethylene 8 parts, acrylonitrile-butadiene-styrene copolymer 4 parts, calcium carbonate 90 parts, glass fiber 8 parts, antistatic agent 3 parts, plasticizer 7 parts, stabilizer 6 parts, lubricant 5 parts, and anti-aging agent 1.8 parts; wherein the number average molecular weight of the polyvinyl chloride resin is 90000, the particle size of the calcium carbonate is 400 mesh, the length of the glass fiber is 2 mm, the mass ratio of the modified multi-walled carbon nanotube, polypyrrole and carbon black in the antistatic agent is 1:0.7:0.2, the plasticizer is oxidized polyethylene wax, the stabilizer is dibutyltin dilaurate, the lubricant is stearic acid, and the anti-aging agent is antioxidant 264.

[0062] The specific preparation method is as follows: the polyvinyl chloride resin, chlorinated polyethylene, acrylonitrile-butadiene-styrene copolymer, plasticizer, stabilizer and anti-aging agent are mixed to obtain a preliminary system under the conditions of 1200 rpm and 110°C for 10 min; the preliminary system and the remaining raw materials are mixed to obtain a mixed system under the conditions of 35°C and 180 rpm for 30 min; the mixed system is extruded, and the temperature of the conveying section is controlled at 140°C, the temperature of the compression section is controlled at 145°C, and the temperature of the die head is controlled at 165°C; the three-roll temperature of the molding is controlled at 85°C, and the thickness error is controlled at 0.1 mm to obtain the antistatic polyvinyl chloride material.

[0063] The materials prepared in Examples 1-3 are subjected to performance testing, the antistatic performance is tested according to the GB / T1410-2006 standard, the peel strength is tested according to GB / T2792-2014, and the mechanical properties are tested according to GB / T1040.2-2022, and the results are recorded in Table 1.

[0064] Table 1 Performance test results

[0065] As can be seen from the above examples, the antistatic polyvinyl chloride material provided by the present application has a surface resistivity reduced from >10 15 Ω to 9.63×10 6 Ω, showing a substantial decrease; and the peel strength reaches 0.7 N / cm, and the tensile strength reaches 41.6 MPa, still maintaining good mechanical properties.

[0066] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered within the protection scope of the present application.

Claims

1. An antistatic polyvinyl chloride material, characterized in that, It is prepared from raw materials comprising the following parts by mass: 10-60 parts polyvinyl chloride resin, 3-8 parts chlorinated polyethylene, 2-4 parts acrylonitrile-butadiene-styrene copolymer, 80-140 parts calcium carbonate, 2-10 parts glass fiber, 1-3 parts antistatic agent, 5-15 parts plasticizer, 4-7 parts stabilizer, 2-6 parts lubricant, and 1-2 parts antiaging agent.

2. The antistatic polyvinyl chloride material as described in claim 1, characterized in that, The number average molecular weight of the polyvinyl chloride resin is 75,000 to 94,000.

3. The antistatic polyvinyl chloride material as described in claim 2, characterized in that, The calcium carbonate has a particle size of 300-500 mesh; The length of the glass fiber is 1~2mm.

4. The antistatic polyvinyl chloride material as described in claim 3, characterized in that, The antistatic agent comprises modified multi-walled carbon nanotubes, polypyrrole, and carbon black; The mass ratio of the modified multi-walled carbon nanotubes, polypyrrole, and carbon black is 1:0.5~0.8:0.1~0.

2.

5. The antistatic polyvinyl chloride material as described in claim 4, characterized in that, The method for preparing the modified multi-walled carbon nanotubes includes the following steps: Modified multi-walled carbon nanotubes were obtained by oxidizing them in a mixed gas. The gas mixture contains nitrogen and oxygen, with the oxygen concentration being 10-20 vol%. The flow rate of the mixed gas is 50~100 ml / min; The oxidation process involves a heating rate of 5-10°C / min, a target temperature of 300-350°C, and a time of 1-4 hours.

6. The antistatic polyvinyl chloride material as described in claim 5, characterized in that, The plasticizer is diphenylisooctyl phosphate and / or oxidized polyethylene wax; The stabilizer is one or more of dibutyltin maleate, octyltin mercaptan and dibutyltin dilaurate; The lubricant is PE wax and / or stearic acid; The anti-aging agent is antioxidant 264 and / or antioxidant 1024.

7. A method for preparing the antistatic polyvinyl chloride material according to any one of claims 1 to 6, characterized in that, Includes the following steps: (1) A preliminary system is obtained by mixing polyvinyl chloride resin, chlorinated polyethylene, acrylonitrile-butadiene-styrene copolymer, plasticizer, stabilizer and anti-aging agent; (2) The preliminary system, calcium carbonate, glass fiber, antistatic agent and lubricant are mixed to obtain a mixed system; (3) The mixture is extruded and molded sequentially to obtain the antistatic polyvinyl chloride material.

8. The method for preparing the antistatic polyvinyl chloride material as described in claim 7, characterized in that, The mixing speed in step (1) is 1000~1500 rpm, the time is 5~10 min, and the temperature is 110~120℃; The mixing speed in step (2) is 100~200 rpm, the time is 20~30 min, and the temperature is 30~40℃.

9. The method for preparing the antistatic polyvinyl chloride material as described in claim 7 or 8, characterized in that, In step (3), the temperature of the extrusion conveying section is 125~140℃, the temperature of the compression section is 140~145℃, and the temperature of the die head is 160~165℃. The temperature of the three forming rollers is 80~90℃, and the thickness error is ≤0.2mm.

10. The application of the antistatic polyvinyl chloride material according to any one of claims 1 to 6 in flooring.

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