Preparation method of antistatic ABS (Acrylonitrile Butadiene Styrene) material

Abstract

The invention relates to a preparation method of an antistatic ABS (Acrylonitrile Butadiene Styrene) material, which comprises the following steps: step 1, firstly, ABS resin is dried by a drying device, a double-shaft motor on the drying device drives two driving wheels to rotate, the two driving wheels drive a roller to rotate, and a plurality of channels on the roller rotate together; aBS resin is sequentially added into the multiple channels through the feeding assembly, the ABS resin in the channels is pushed from one ends of the channels to the discharging assembly at the other ends of the channels, when the ABS resin moves in the channels, the ABS resin is dried through the heating assembly, and meanwhile the piston assembly injects air into the multiple channels and sucks air into the multiple channels; step 2, mixing the following components in parts by weight: 85 parts of ABS resin; 6 parts of an antistatic agent; 0.5 part of an antioxidant; 6 parts of a compatilizer; uniformly mixing 2 parts of a dispersing agent to obtain a mixed material; and 3, putting the mixed material into an extruder, and carrying out melt extrusion to obtain the antistatic ABS material.

Description

Technical Field

[0001] This invention relates to the field of ABS material preparation technology, and specifically to a method for preparing antistatic ABS material. Background Technology

[0002] ABS resin is an engineering plastic with excellent comprehensive properties and wide applications. However, its polymer structure results in a high surface resistivity, making it highly susceptible to the generation and accumulation of static electricity due to friction. This not only attracts dust and affects the appearance and cleanliness of products, but also poses serious problems such as signal interference, electric shock, and even fire and explosion in applications such as electronics, mining equipment, and textile machinery. Therefore, antistatic modification of ABS materials to develop ABS materials with durable and stable antistatic functions has always been a research hotspot and important direction in this field.

[0003] On the other hand, in the actual production and preparation of antistatic ABS materials, the drying pretreatment of raw materials (especially ABS resin itself) is a crucial step. ABS resin contains trace amounts of moisture. If this moisture is not sufficiently removed before processing, it will cause water molecules to vaporize during high-temperature melt extrusion, resulting in bubbles and silver streaks inside the product, severely damaging its mechanical properties and surface smoothness, and potentially causing instability in the extrusion process.

[0004] Existing technologies mostly use ordinary hot air ovens or hopper dryers for static or simple dynamic drying, which has problems such as low heat energy utilization, uneven drying, long cycle, and water vapor generated during the drying process is easy to condense on the inner wall of the equipment or in the cold material zone and be re-adsorbed by the material, affecting drying efficiency and final product quality. Summary of the Invention

[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0006] To address the technical problems mentioned in the background section above, some embodiments of this application provide a method for preparing antistatic ABS material, including the following steps: Step one: First, the ABS resin is dried using a drying device. The drying device includes a machine body, two driven wheels and two driving wheels symmetrically and rotatably mounted on the machine body, a roller rolling on the two driven wheels and two driving wheels, multiple channels evenly distributed in a ring and fixed on the inner wall of the roller, a feeding assembly located at one end of the roller and mounted on the machine body, a discharging assembly located at the other end of the roller and mounted on the machine body, a heating assembly on the machine body for air circulation within the multiple channels, and a piston assembly inside the roller for evacuating and injecting air into the multiple channels. Two limiting wheels are mounted on the machine body to limit the roller; a dual-axis motor is fixedly mounted on the machine body and simultaneously fixedly installed through the two drive wheels; the dual-axis motor drives the two drive wheels to rotate, the two drive wheels drive the roller to rotate, and multiple channels on the roller rotate together. ABS resin is added to multiple channels in sequence through the feeding component, and the ABS resin in the channel is pushed from one end of the channel to the unloading component at the other end. When the ABS resin moves in the channel, the heating component dries the ABS resin, and at the same time the piston component injects and draws air into multiple channels. Step 2: Mix the following components by weight: 85 parts ABS resin; 6 parts antistatic agent; 0.5 parts antioxidant; 6 parts compatibilizer; and 2 parts dispersant until homogeneous to obtain a mixture. Step 3: The mixture is placed in an extruder for melt extrusion to obtain the antistatic ABS material.

[0007] Specifically, the antistatic agent is composed of carbon black and titanium dioxide in a weight ratio of 1:5.

[0008] Specifically, the antioxidant is antioxidant 1076; the compatibilizer is maleic anhydride grafted compatibilizer; and the dispersant is ethylene bis-stearamide.

[0009] Specifically, the feeding assembly includes multiple feeding ports corresponding to multiple channels and located on the roller, a ring rotatably sleeved on the roller and fixedly located on the machine body, a through hole on the ring, multiple hollow push blocks slidably located at one end of the multiple channels, multiple air pipes with one end fixedly inserted into the multiple hollow push blocks, and multiple first air holes on the hollow push blocks. ABS resin is added into the through hole. When the through hole coincides with the feeding port, the ABS resin in the through hole enters the channel, pushing the air pipe to move in the direction of the channel, driving the hollow push block to move. The hollow push block moves the ABS resin located at the feeding port towards the feeding assembly, completing the addition of ABS resin into the channel.

[0010] Specifically, the feeding assembly includes a sealing ring rotatably mounted on the other end of the drum and fixedly mounted on the machine body, a hollow tube vertically fixed on the sealing ring, a first discharge port on the sealing ring, a second discharge port overlapping with the first discharge port and mounted on the hollow tube, a third discharge port on the hollow tube, a guide tube overlapping with the third discharge port and fixedly mounted on the hollow tube, a moving block slidably mounted inside the hollow tube, a cylinder fixedly mounted on the hollow tube for driving the moving block to move, and an inclined hole on the moving block. When the first discharge port and the second discharge port overlap, the inclined hole on the moving block also overlaps with the second discharge port. The dried ABS resin in the channel enters the inclined hole. The cylinder is activated to drive the moving block to descend, causing the inclined hole and the ABS resin inside it to move together. After the inclined hole overlaps with the third discharge port, the ABS resin in the inclined hole enters the guide tube through the third discharge port, completing the feeding of the dried ABS resin.

[0011] Specifically, the heating assembly includes a heating pipe fixedly mounted on the machine body, a heater fixedly mounted at one end of the heating pipe, a first connecting pipe connected to and fixedly mounted on the heating pipe, a first connector rotatably mounted on the other end of the roller and fixedly mounted on the first connecting pipe, a second connecting pipe with one end slidably inserted into the other end of the heating pipe, a second connector connected to and fixedly mounted on the second connecting pipe, a rotating ring rotatably mounted on the second connector, an air pump located inside the heating pipe, a detachable vapor-liquid filter screen located inside the heating pipe, multiple air injection cylinders with one end fixedly inserted into multiple channels and the other end placed in the first connector, and multiple second air holes located at one end of the air injection cylinders; the first connector is connected to the second connecting pipe; the other ends of the multiple air pipes... One end is fixedly inserted through the rotating ring; the air pump is started to draw air from one end of the heating pipe into it and discharge it into the other end of the heating pipe. At the same time, the air is heated by the heater. The heated air enters the first joint through the first connecting pipe. The heated air in the first joint enters multiple air injection cylinders. Through the second air hole, the heated air finally enters multiple channels. The heating pipe draws air from the second connecting pipe and the second joint, thereby drawing air from multiple air pipes. The multiple air pipes draw air from multiple hollow push blocks. Through the first air hole on the hollow push block, the air in the channel is finally drawn in, forming an air circulation. During the air circulation, water vapor in the air is filtered and isolated by a vapor-liquid filter screen.

[0012] Specifically, the heating assembly further includes a first drain outlet on the heating pipe, a first sealing plate fixedly disposed at the first drain outlet, a second sealing plate slidably disposed on the first sealing plate and the heating pipe, a second drain outlet disposed on the first sealing plate, a third drain outlet disposed on the second sealing plate, a straight rod slidably disposed on the heating pipe and fixed at one end to the second sealing plate, a spring with both ends fixed to the heating pipe and the second sealing plate respectively, and a push rod with one end fixed to the second connecting pipe. The water vapor filtered by the vapor-liquid filter flows to the first drain outlet, and the first drain outlet coincides with the third drain outlet. When the second connector and the second connecting pipe move towards the second sealing plate, the second connecting pipe drives the push rod to move together, and the push rod pushes the second sealing plate to move. The third drain outlet is misaligned with the first drain outlet and then coincides with the second drain outlet, so that the water in the third drain outlet is discharged from the second drain outlet. The spring is compressed, and subsequently, the spring resets the second sealing plate.

[0013] Specifically, the piston assembly includes multiple air inlets, multiple third air holes on the air inlets, multiple piston rods slidably disposed within the multiple air inlets, a first central shaft and a second central shaft coaxial with the roller and rotatably disposed on the machine body, a reduction motor fixedly disposed on the machine body for driving the rotation of the first central shaft, an eccentric shaft eccentrically disposed with its two ends fixedly disposed on the first central shaft and the second central shaft respectively, and multiple connecting rods with one end rotatably disposed on the multiple piston rods and the other end rotatably sleeved on the eccentric shaft; the multiple air inlets are fixed at equal intervals on multiple channels; when the reduction motor is started, it drives the first central shaft to rotate, the first central shaft drives the eccentric shaft to revolve around the first central shaft as the axis, the eccentric shaft drives the second central shaft to rotate, and during the revolution of the eccentric shaft, it drives the multiple connecting rods to rotate, and the multiple connecting rods drive the multiple piston rods to reciprocate within the multiple air inlets, and through the third air holes, the piston rods draw in and inject air into the channels during the reciprocating movement.

[0014] The beneficial effects of this invention are: The ABS resin is continuously and slowly propelled in multiple independent channels, achieving dynamic and tumbling drying of the material, avoiding the unevenness problem of traditional static drying, and resulting in high drying efficiency and good effect. The unique heating and piston components work together to make the heating air flow counter-currently to the ABS resin within the channel. This "counter-flow" design not only utilizes waste heat to preheat the incoming wet material, improving heat utilization, but more importantly, it quickly removes the moisture evaporated from the material, effectively preventing water vapor from condensing in the low-temperature zone and being re-adsorbed by the material, thus achieving deep drying. The piston assembly, through reciprocating motion, periodically "injects" and "extracts" air into each drying channel, creating strong local air disturbances. This greatly accelerates the air renewal rate within the channel and the heat and mass transfer rate with the material surface, significantly shortening the drying time and improving the uniformity and thoroughness of drying. The entire heating cycle is basically closed. Water vapor is separated by a vapor-liquid filter and combined with a clever automatic drainage system, condensate can be discharged without disrupting the internal temperature and pressure balance, minimizing heat loss and resulting in significant energy savings. The ingenious linkage design of the feeding and unloading components enables the automatic and sequential addition of wet ABS resin to multiple channels inside the rotating drum and the discharge of dry ABS resin, making the entire drying process continuous and automated, thus improving production efficiency. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0016] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0017] In the attached diagram: Figure 1 This is a schematic diagram of the drying device. Figure 2 This is a top view of the drying unit; Figure 3 for Figure 2 The structural cross-sectional view of line AA in the diagram; Figure 4 for Figure 3 Enlarged view of point A in the image; Figure 5 for Figure 3 Enlarged view of point B in the image; Figure 6 for Figure 3 Enlarged view of point C in the image; Figure 7 for Figure 2 The structural cross-sectional view of the BB line in the diagram. Detailed Implementation

[0018] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0019] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0020] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0021] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0022] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Reference Figures 1-7 As shown, the preparation method of an antistatic ABS material according to the present invention includes the following steps: Step 1: First, the ABS resin is dried using a drying device. The drying device includes a body 1, two driven wheels 2 and two driving wheels 3 symmetrically and rotatably mounted on the body 1, a roller 4 rolling on the two driven wheels 2 and two driving wheels 3, multiple channels 5 evenly distributed in a ring and fixed on the inner wall of the roller 4, a feeding assembly 6 located at one end of the roller 4 and mounted on the body 1, a discharging assembly 7 located at the other end of the roller 4 and mounted on the body 1, a heating assembly 8 mounted on the body 1 for air circulation within the multiple channels 5, a piston assembly 9 located inside the roller 4 for evacuating and injecting air into the multiple channels 5, and a rotating... Two limiting wheels 10 are mounted on the machine body 1 to limit the roller 4, and a dual-axis motor 11 is fixedly mounted on the machine body 1 and simultaneously fixedly mounted through the two drive wheels 3. The dual-axis motor 11 drives the two drive wheels 3 to rotate, and the two drive wheels 3 drive the roller 4 to rotate. Multiple channels 5 on the roller 4 rotate together. ABS resin is added to multiple channels 5 in sequence through the feeding component 6, and the ABS resin in the channel 5 is pushed from one end of the channel 5 to the unloading component 7 at the other end. When the ABS resin moves in the channel 5, the heating component 8 dries the ABS resin, and at the same time, the piston component 9 injects and draws air into multiple channels 5. Step 2: Mix the following components by weight: 85 parts ABS resin; 6 parts antistatic agent; 0.5 parts antioxidant; 6 parts compatibilizer; and 2 parts dispersant until homogeneous to obtain a mixture. Step 3: The mixture is placed in an extruder for melt extrusion to obtain the antistatic ABS material.

[0024] Specifically, the antistatic agent is composed of carbon black and titanium dioxide in a weight ratio of 1:5.

[0025] Specifically, the antioxidant is antioxidant 1076; the compatibilizer is maleic anhydride grafted compatibilizer; and the dispersant is ethylene bis-stearamide.

[0026] Specifically, the feeding assembly 6 includes multiple feeding ports 61 corresponding to multiple channels 5 and disposed on the roller 4, a ring 62 rotatably sleeved on the roller 4 and fixedly disposed on the machine body 1, a through hole 63 disposed on the ring 62, multiple hollow push blocks 64 respectively slidably disposed at one end of multiple channels 5, multiple air pipes 65 respectively fixedly inserted into multiple hollow push blocks 64 at one end, and multiple first air holes 66 disposed on hollow push blocks 64; ABS resin is added into the through hole 63. When the through hole 63 coincides with the feeding port 61, the ABS resin in the through hole 63 enters the channel 5, pushes the air pipe 65 to move in the direction of the channel 5, drives the hollow push block 64 to move, and the hollow push block 64 moves the ABS resin located at the feeding port 61 towards the feeding assembly 7, thus completing the work of adding ABS resin into the channel 5.

[0027] Specifically, the feeding assembly 7 includes a sealing ring 71 rotatably mounted on the other end of the roller 4 and fixedly mounted on the machine body 1, a hollow tube 72 vertically fixed on the sealing ring 71, a first discharge port 73 on the sealing ring 71, a second discharge port 74 overlapping with the first discharge port 73 and mounted on the hollow tube 72, a third discharge port 75 mounted on the hollow tube 72, a guide tube 76 overlapping with the third discharge port 75 and fixedly mounted on the hollow tube 72, a moving block 77 slidably mounted inside the hollow tube 72, a cylinder 78 fixedly mounted on the hollow tube 72 for driving the moving block 77 to move, and an oblique hole 79 mounted on the moving block 77; the first discharge port 73 and the second discharge port When 74 overlaps, the inclined hole 79 on the moving block 77 also overlaps with the second discharge port 74. The dried ABS resin in the channel 5 enters the inclined hole 79. The cylinder 78 is activated to drive the moving block 77 to descend, so that the inclined hole 79 and the ABS resin inside it move together. After the inclined hole 79 overlaps with the third discharge port 75, the ABS resin in the inclined hole 79 enters the guide pipe 76 through the third discharge port 75. The moving block 77 seals the second discharge port 74, completing the discharge of the dried ABS resin. The above settings prevent the heated air in the channel 5 from being discharged from the first discharge port 73 and the second discharge port 74 during the discharge of the ABS resin in the channel 5.

[0028] Specifically, the heating assembly 8 includes a heating pipe 81 fixedly mounted on the body 1, a heater 82 fixedly mounted at one end of the heating pipe 81, a first connecting pipe 83 connected to and fixedly mounted on the heating pipe 81, a first connector 84 rotatably mounted on the other end of the roller 4 and fixedly mounted on the first connecting pipe 83, a second connecting pipe 85 with one end slidably inserted into the other end of the heating pipe 81, a second connector 86 connected to and fixedly mounted on the second connecting pipe 85, a rotating ring 87 rotatably mounted on the second connector 86, an air pump 88 disposed within the heating pipe 81, a detachable vapor-liquid filter screen 89 disposed within the heating pipe 81, multiple air injection cylinders 818 with one end fixedly inserted into multiple channels 5 and the other end placed in the first connector 84, and multiple second air holes 819 disposed at one end of the air injection cylinders 818; the first connector 84 is connected to the second connecting pipe 85; the other ends of the multiple air pipes 65 are simultaneously fixedly inserted through the rotating ring 87; the air pump 88 is activated to draw air from one end of the heating pipe 81 into the rotating ring 87. Inside, at the other end of the heating pipe 81, air is simultaneously heated by the heater 82. The heated air enters the first connector 84 through the first connecting pipe 83. The heated air in the first connector 84 enters multiple air injection cylinders 818 and is connected through the second air hole 819. Finally, the heated air enters multiple channels 5. The heating pipe 81 draws air from the second connecting pipe 85 and the second connector 86, thereby drawing air from multiple air pipes 65. The multiple air pipes 65 draw air from multiple hollow push blocks 64 and are connected through the first air hole 66 on the hollow push block 64, thus drawing air from the channels 5 and forming an air circulation. During the air circulation, water vapor in the air is filtered and isolated by the vapor-liquid filter screen 89. The direction of the heated air flow in the channel 5 is opposite to the direction of movement of the ABS resin, which can preheat the ABS resin in the channel 5 and prevent water vapor from re-adhering to the ABS resin. It can also directly recover and utilize heat, resulting in a high heat recovery and utilization rate.

[0029] Specifically, the heating assembly 8 further includes a first drain outlet 810 on the heating pipe 81, a first sealing plate 811 fixedly disposed at the first drain outlet 810, a second sealing plate 812 slidably disposed on the first sealing plate 811 and the heating pipe 81, a second drain outlet 813 disposed on the first sealing plate 811, a third drain outlet 814 disposed on the second sealing plate 812, a straight rod 815 slidably disposed on the heating pipe 81 and fixed at one end on the second sealing plate 812, a spring 816 with both ends fixed on the heating pipe 81 and the second sealing plate 812 respectively, and a push rod 817 with one end fixed on the second connecting pipe 85; the water vapor filtered by the vapor-liquid filter screen 89 flows to the first drain outlet 810, the second... When the first drain outlet 810 coincides with the third drain outlet 814, and the second connector 86 and the second connecting pipe 85 move towards the second sealing plate 812, the second connecting pipe 85 drives the push rod 817 to move together. The push rod 817 pushes the second sealing plate 812 to move, and the third drain outlet 814 is misaligned with the first drain outlet 810. The third drain outlet 814 coincides with the second drain outlet 813, so that the water in the third drain outlet 814 is discharged from the second drain outlet 813. The spring 816 is compressed, and the second sealing plate 812 is subsequently reset by the spring 816. By setting the above, the area is kept sealed during drainage to prevent a large amount of air in the heating pipe 81 from contacting the outside air, maintain the temperature in the heating pipe 81, and reduce heat loss.

[0030] Specifically, the piston assembly 9 includes multiple air inlets 91, multiple third air holes 92 disposed on the air inlets 91, multiple piston rods 93 slidably disposed within the multiple air inlets 91, a first central shaft 94 and a second central shaft 95 coaxial with the roller 4 and rotatably disposed on the machine body 1, a reduction motor 96 fixedly disposed on the machine body 1 for driving the first central shaft 94 to rotate, an eccentric shaft 97 eccentrically disposed with respect to the first central shaft 94 and fixed at both ends to the first central shaft 94 and the second central shaft 95 respectively, and multiple connecting rods 98 with one end rotatably disposed on the multiple piston rods 93 and the other end rotatably sleeved on the eccentric shaft 97; the multiple air inlets 91 are fixed at equal intervals to the roller 4. On multiple channels 5; the reduction motor 96 is started, driving the first central shaft 94 to rotate. The first central shaft 94 drives the eccentric shaft 97 to revolve around the first central shaft 94. The eccentric shaft 97 drives the second central shaft 95 to rotate. During the revolution of the eccentric shaft 97, it drives multiple connecting rods 98 to rotate. The multiple connecting rods 98 drive multiple pistons 93 to reciprocate within multiple air vents 91. Through the third air hole 92, the pistons 93 draw in and inject air into the channels 5 during the reciprocating movement. By injecting and drawing air into the channels 5, the air flow speed in the channels 5 is accelerated, the drying efficiency of the ABS resin is accelerated, and the air flow direction is locally changed, resulting in more comprehensive drying of the ABS resin.

[0031] The heater 82, the dual-shaft motor 11, the geared motor 96, and the vapor-liquid filter 89 were purchased from the market.

[0032] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A method for preparing an antistatic ABS material, characterized in that, Includes the following steps: Step one: First, the ABS resin is dried using a drying device. The drying device includes a machine body, two driven wheels and two driving wheels symmetrically and rotatably mounted on the machine body, a roller rolling on the two driven wheels and two driving wheels, multiple channels evenly distributed in a ring and fixed on the inner wall of the roller, a feeding assembly located at one end of the roller and mounted on the machine body, a discharging assembly located at the other end of the roller and mounted on the machine body, a heating assembly on the machine body for air circulation within the multiple channels, and a piston assembly inside the roller for evacuating and injecting air into the multiple channels. Two limiting wheels are mounted on the machine body to limit the roller; a dual-axis motor is fixedly mounted on the machine body and simultaneously fixedly installed through the two drive wheels; the dual-axis motor drives the two drive wheels to rotate, the two drive wheels drive the roller to rotate, and multiple channels on the roller rotate together. ABS resin is added to multiple channels in sequence through the feeding component, and the ABS resin in the channel is pushed from one end of the channel to the unloading component at the other end. When the ABS resin moves in the channel, the heating component dries the ABS resin, and at the same time the piston component injects and draws air into multiple channels. Step 2: Mix the following components by weight: 85 parts ABS resin; 6 parts antistatic agent; 0.5 parts antioxidant; 6 parts compatibilizer; and 2 parts dispersant until homogeneous to obtain a mixture. Step 3: The mixture is placed in an extruder for melt extrusion to obtain the antistatic ABS material.

2. The method for preparing an antistatic ABS material according to claim 1, characterized in that: The antistatic agent is composed of carbon black and titanium dioxide in a weight ratio of 1:

5.

3. The method for preparing an antistatic ABS material according to claim 1, characterized in that: The antioxidant is antioxidant 1076; the compatibilizer is maleic anhydride grafted compatibilizer; and the dispersant is ethylene bis-stearamide.

4. The method for preparing an antistatic ABS material according to claim 1, characterized in that: The feeding assembly includes multiple feeding ports corresponding to multiple channels and located on the roller, a ring rotatably sleeved on the roller and fixedly located on the machine body, a through hole on the ring, multiple hollow push blocks slidably located at one end of the multiple channels, multiple air pipes fixedly inserted into the multiple hollow push blocks at one end, and multiple first air holes on the hollow push blocks. ABS resin is added into the through hole. When the through hole coincides with the feeding port, the ABS resin in the through hole enters the channel, pushing the air pipe to move in the direction of the channel, driving the hollow push block to move. The hollow push block moves the ABS resin located at the feeding port towards the feeding assembly, completing the addition of ABS resin into the channel.

5. The method for preparing an antistatic ABS material according to claim 1, characterized in that: The feeding assembly includes a sealing ring rotatably mounted on the other end of the drum and fixedly mounted on the machine body, a hollow tube vertically fixed on the sealing ring, a first discharge port on the sealing ring, a second discharge port overlapping with the first discharge port and mounted on the hollow tube, a third discharge port on the hollow tube, a guide tube overlapping with the third discharge port and fixedly mounted on the hollow tube, a moving block slidably mounted inside the hollow tube, a cylinder fixedly mounted on the hollow tube for driving the moving block to move, and an inclined hole on the moving block. When the first discharge port and the second discharge port overlap, the inclined hole on the moving block also overlaps with the second discharge port. The dried ABS resin in the channel enters the inclined hole. The cylinder is activated to drive the moving block to descend, causing the inclined hole and the ABS resin inside it to move together. After the inclined hole overlaps with the third discharge port, the ABS resin in the inclined hole enters the guide tube through the third discharge port, completing the feeding of the dried ABS resin.

6. The method for preparing an antistatic ABS material according to claim 1, characterized in that: The heating assembly includes a heating pipe fixed to the machine body, a heater fixed at one end of the heating pipe, a first connecting pipe connected to and fixed to the heating pipe, a first connector rotatably sleeved on the other end of the roller and fixed to the first connecting pipe, a second connecting pipe with one end slidably inserted into the other end of the heating pipe, a second connector connected to and fixed to the second connecting pipe, a rotating ring rotatably mounted on the second connector, an air pump located inside the heating pipe, a detachable vapor-liquid filter screen located inside the heating pipe, multiple air injection cylinders with one end fixedly inserted into multiple channels and the other end placed in the first connector, and multiple second air holes located at one end of the air injection cylinders; the first connector is connected to the second connecting pipe; the other ends of the multiple air pipes... Simultaneously, it is fixedly connected to the rotating ring; the air pump is started to draw air from one end of the heating pipe into it and discharge it into the other end of the heating pipe. At the same time, the air is heated by the heater. The heated air enters the first joint through the first connecting pipe. The heated air in the first joint enters multiple air injection cylinders. Through the second air hole, the heated air finally enters multiple channels. The heating pipe draws air from the second connecting pipe and the second joint, thereby drawing air from multiple air pipes. The multiple air pipes draw air from multiple hollow push blocks. Through the first air hole on the hollow push block, the air in the channel is finally drawn in, forming an air circulation. During the air circulation, water vapor in the air is filtered and isolated by the vapor-liquid filter screen.

7. The method for preparing an antistatic ABS material according to claim 6, characterized in that: The heating assembly further includes a first drain outlet on the heating pipe, a first sealing plate fixed at the first drain outlet, a second sealing plate slidably disposed on the first sealing plate and the heating pipe, a second drain outlet on the first sealing plate, a third drain outlet on the second sealing plate, a straight rod slidably disposed on the heating pipe and fixed at one end to the second sealing plate, a spring with both ends fixed to the heating pipe and the second sealing plate respectively, and a push rod with one end fixed to the second connecting pipe. The water vapor filtered by the vapor-liquid filter flows to the first drain outlet, and the first drain outlet coincides with the third drain outlet. When the second connector and the second connecting pipe move towards the second sealing plate, the second connecting pipe drives the push rod to move together, and the push rod pushes the second sealing plate to move. The third drain outlet is misaligned with the first drain outlet and then coincides with the second drain outlet, so that the water in the third drain outlet is discharged from the second drain outlet. The spring is compressed, and subsequently, the second sealing plate is reset by the spring.

8. The method for preparing an antistatic ABS material according to claim 1, characterized in that: The piston assembly includes multiple air inlets, multiple third air holes on the air inlets, multiple piston rods slidably disposed within the multiple air inlets, a first central shaft and a second central shaft coaxial with the roller and rotatably disposed on the machine body, a reduction motor fixedly disposed on the machine body for driving the rotation of the first central shaft, an eccentric shaft eccentrically disposed with its two ends fixedly disposed on the first central shaft and the second central shaft respectively, and multiple connecting rods with one end rotatably disposed on the multiple piston rods and the other end rotatably sleeved on the eccentric shaft; the multiple air inlets are fixed at equal intervals on multiple channels; when the reduction motor is started, it drives the first central shaft to rotate, the first central shaft drives the eccentric shaft to revolve around the first central shaft as the axis, the eccentric shaft drives the second central shaft to rotate, and during the revolution of the eccentric shaft, it drives the multiple connecting rods to rotate, and the multiple connecting rods drive the multiple piston rods to reciprocate within the multiple air inlets, and through the third air holes, the piston rods draw in and inject air into the channels during the reciprocating movement.

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