A dust-free drag chain cable

Abstract

The present invention relates to the field of drag chain cables, specifically to a dust-free drag chain cable, which is used to solve the problem that the existing drag chain cable sheath material has poor wear resistance and generates a large amount of dust particles during use, which in turn causes serious adverse effects; the dust-free drag chain cable can significantly improve the wear resistance of the dust-free wear-resistant sheath layer by adding wear-resistant reinforcing material to the dust-free wear-resistant sheath layer, so that the dust-free wear-resistant sheath layer is not easily worn during the reciprocating motion in the drag chain, thereby extending the service life of the dust-free drag chain cable, and significantly reducing the particle shedding of the dust-free wear-resistant sheath layer during the wear process, thereby effectively reducing the generation of dust, so that the dust-free drag chain cable can meet the requirements of industries such as semiconductors, precision electronic equipment, and medical equipment for high-cleanliness environments, and the dust-free drag chain cable has simple process operations and is easy to realize industrial production.

Description

Technical Field

[0001] The present invention relates to the field of drag chain cables, in particular to a dust-free drag chain cable. Background Art

[0002] Drag chain cables are highly flexible, specialized cables that can move back and forth with the drag chain without abrasion. They are widely used in drag chain systems across various mechanical equipment, connecting moving and fixed components to transmit power and signals. As a crucial component of the cable, the performance of the drag chain cable sheath directly impacts its overall service life and adaptability to the operating environment.

[0003] While conventional drag chain cable jacket materials meet basic mechanical, chemical, and electrical insulation requirements to a certain extent, their wear resistance needs to be improved in applications requiring a cleanroom environment, such as semiconductor, precision electronic equipment, and medical device manufacturing. This results in drag chain cables generating large amounts of dust particles due to friction and collision. These dust particles can pollute the production environment and even lead to reduced product quality, decreased production efficiency, and equipment failure. Therefore, developing a cleanroom drag chain cable with excellent wear resistance and dustproof properties is of great practical significance.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the Invention

[0005] In order to overcome the above technical problems, the purpose of the present invention is to provide a dust-free drag chain cable, which solves the problem that the existing drag chain cable sheath material has poor wear resistance and generates a large amount of dust particles during use, thereby causing serious adverse effects.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A dust-free drag chain cable, comprising a core wire, the core wire being composed of a conductor and an insulating layer covering the outside of the conductor, a filler being filled between a plurality of strands of the core wire, a tape layer covering the outside of a plurality of strands of the core wire, and a dust-free wear-resistant sheath layer covering the outside of the tape layer;

[0008] The dust-free and wear-resistant jacket layer is prepared by the following steps:

[0009] Step 1: Add PVC resin, wear-resistant reinforcing material, diethyl phthalate, carbon black, aluminum hydroxide, magnesium stearate, antioxidant and ultraviolet absorber into a high-speed mixer, stir and mix at a temperature of 70-80° C. and a stirring rate of 600-800 r / min for 30-50 minutes to obtain a mixed material;

[0010] Step 2: Add the mixed material into the extruder, melt and extrude it, and coat it on the outside of the tape layer to form a dust-free and wear-resistant sheath layer to obtain a dust-free drag chain cable.

[0011] As a preferred embodiment of the present invention, the dust-free wear-resistant jacket layer comprises the following components in parts by weight:

[0012] 80-90 parts of PVC resin, 20-36 parts of wear-resistant reinforcing material, 9-13 parts of diethyl phthalate, 5-7 parts of carbon black, 2-6 parts of aluminum hydroxide, 1-3 parts of magnesium stearate, 0.5-1.5 parts of antioxidant and 0.5-1.5 parts of ultraviolet absorber.

[0013] As a preferred embodiment of the present invention, the PVC resin is DG-1000S; the antioxidant is antioxidant 1010; and the ultraviolet absorber is ultraviolet absorber UV-234.

[0014] As a preferred embodiment of the present invention, the wear-resistant reinforcing material is prepared by the following steps:

[0015] Step s1: N-(hydroxymethyl)acrylamide, triethyl borate, phenothiazine and benzene are added to a three-necked flask equipped with a stirrer, a thermometer, a gas guide tube and a reflux condenser, and nitrogen is introduced for protection. The mixture is stirred at a temperature of 25-30° C. and a stirring rate of 300-400 r / min for 40-60 minutes, and then the temperature is raised to reflux and the stirring reaction is continued for 2-3 hours. After the reaction is completed, the reaction product is cooled to room temperature, and then the solvent is removed by rotary evaporation. The product is then added to anhydrous acetone, and then vacuum filtered. The filtrate is rotary evaporated to remove the solvent to obtain a polyene monomer;

[0016] Step s2: adding a polyene monomer, parachlorobenzotrifluoride, anhydrous sodium carbonate and benzene to a three-necked flask equipped with a stirrer, a thermometer and a gas guide tube, introducing nitrogen protection, stirring and reacting at a temperature of 25-30° C. and a stirring rate of 300-400 r / min for 40-60 minutes, then raising the temperature to 90-95° C. and continuing to stir and react for 6-8 hours. After the reaction is completed, the reaction product is cooled to room temperature, then vacuum filtered, and the filtrate is rotary evaporated to remove the solvent to obtain a polyene fluorine-containing monomer;

[0017] Step s3: adding silicon carbide powder, deionized water and anhydrous ethanol to a three-necked flask equipped with a stirrer, a thermometer, an air guide tube and a reflux condenser, ultrasonically treating for 20-30 minutes at an ultrasonic frequency of 30-40kHz, then adjusting the pH to 9-10 with ammonia water, and then continuing ultrasonic treatment for 10-15 minutes, then adding silane coupling agent KH-570 and stirring the mixture at a temperature of 25-30°C and a stirring rate of 300-400r / min for 20-30 minutes, then heating to reflux and continuing stirring the reaction for 2-3 hours, after which the reaction product is cooled to room temperature and then centrifuged, the precipitate is washed with distilled water 3-5 times, and then placed in a vacuum drying oven and dried at a temperature of 70-75°C for 2-3 hours to obtain alkenyl-modified silicon carbide;

[0018] Step s4: Add N-phenylmaleimide, polyolefin fluorine-containing monomer, olefin-modified silicon carbide and cyclohexanone to a three-necked flask equipped with an agitator, a thermometer and an air duct, introduce nitrogen protection, and stir the reaction at a temperature of 25-30°C and a stirring rate of 300-400r / min for 20-30min, then continue stirring the reaction at 40-45°C for 10-20min, then add azobisisobutyronitrile and continue stirring the reaction at 90-100°C for 6-8h. After the reaction is completed, cool the reaction product to room temperature, pour it into petroleum ether, and then vacuum filter it. Then place the filter cake in a vacuum drying oven and dry it at a temperature of 50-55°C for 3-5h to obtain a wear-resistant reinforcing material.

[0019] As a preferred embodiment of the present invention, the usage ratio of N-(hydroxymethyl)acrylamide, triethyl borate, phenothiazine and benzene in step s1 is 30 mmol:10 mmol:0.02-0.04 g:50-60 mL.

[0020] As a preferred embodiment of the present invention, the usage ratio of the polyolefin monomer, para-chlorobenzotrifluoride, anhydrous sodium carbonate and benzene in step s2 is 10 mmol: 30 mmol: 35-40 mmol: 60-70 mL.

[0021] As a preferred embodiment of the present invention, the usage ratio of the silicon carbide powder, deionized water, anhydrous ethanol and silane coupling agent KH-570 in step s3 is 5g:25-30mL:35-40mL:0.9-3.5g.

[0022] As a preferred embodiment of the present invention, the average particle size of the silicon carbide powder in step s3 is 23 μm; and the mass fraction of the ammonia water is 20-25%.

[0023] As a preferred embodiment of the present invention, the usage ratio of the N-phenylmaleimide, the polyalkenyl fluorine-containing monomer, the alkenyl-modified silicon carbide and the cyclohexanone in step s4 is 15 mmol: 3-13 mmol: 0.8-2.2 g: 50-60 mL.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] A dust-free drag chain cable, comprising: adding PVC resin, wear-resistant reinforcing material, diethyl phthalate, carbon black, aluminum hydroxide, magnesium stearate, antioxidant and ultraviolet absorber into a high-speed mixer and stirring and mixing to obtain a mixture; adding the mixture into an extruder, and melt-extruding and coating it on the outside of a tape layer to form a dust-free wear-resistant sheath layer to obtain a dust-free drag chain cable; the dust-free drag chain cable can significantly improve the wear resistance of the dust-free wear-resistant sheath layer by adding the wear-resistant reinforcing material into the dust-free wear-resistant sheath layer, so that the dust-free wear-resistant sheath layer is not easily worn during the reciprocating motion in the drag chain, thereby extending the service life of the dust-free drag chain cable, and significantly reducing the particle shedding of the dust-free wear-resistant sheath layer during the wear process, thereby effectively reducing the generation of dust, so that the dust-free drag chain cable can meet the requirements of industries such as semiconductors, precision electronic equipment, and medical equipment for high-cleanliness environments, and the dust-free drag chain cable has simple process operations and is easy to realize industrial production.

[0026] In the process of preparing dust-free drag chain cables, a wear-resistant reinforcing material is first prepared. First, N-(hydroxymethyl) acrylamide and triethyl borate are reacted. The hydroxyl group on N-(hydroxymethyl) acrylamide undergoes an ester exchange reaction with the borate group on triethyl borate to form a new borate group, and an olefin group is introduced to obtain a polyolefin monomer. Then, the polyolefin monomer and para-chlorotrifluorotoluene react, and the secondary amine group on the polyolefin monomer reacts with the bromine atom on para-chlorotrifluorotoluene to introduce a benzene ring and a fluorine element to obtain a polyolefin fluorine-containing monomer. Then, the silicon carbide powder is modified using the silane coupling agent KH-570, which significantly improves the dispersibility of the silicon carbide powder while introducing a large number of olefin groups to obtain olefin-modified silicon carbide. Finally, N-phenylmaleimide, polyolefin fluorine-containing monomer, Olefin-modified silicon carbide is polymerized as a monomer to form a wear-resistant reinforcing material; the molecular structure of the wear-resistant reinforcing material contains benzene rings and five-membered rings. These stable ring structures give it excellent mechanical properties and stability. Its molecular structure also contains a large amount of fluorine elements, which achieve its low surface energy and self-lubrication, greatly reducing its friction coefficient. Silicon carbide has high hardness and good wear resistance. After it is evenly dispersed, it can form an effective wear-resistant reinforcement network, and its thermal stability is improved under the action of boron elements, benzene rings and fluorine elements, so that its flame retardant properties are improved. Therefore, adding the wear-resistant reinforcing material to the dust-free wear-resistant sheath layer can significantly improve its wear resistance, ensure the safe operation of the cable, and greatly reduce the dust generated during its drag chain movement, thereby expanding its scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0028] Figure 1 It is a schematic structural diagram of the dust-free drag chain cable of the present invention. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] Example 1:

[0031] See also Figure 1As shown, this embodiment is a dust-free drag chain cable, including a core wire, which is composed of a conductor made of copper or tinned copper and an insulating layer of FEP material coated on the outside of the conductor. Several strands of the core wires are filled with bulletproof wire as a filler, and the outside of several strands of the core wires is wrapped with PTFE material tape to form a wrapping layer, and the outside of the wrapping layer is coated with a dust-free and wear-resistant sheath layer.

[0032] Example 2:

[0033] This embodiment is a production process for a dust-free drag chain cable, comprising the following steps:

[0034] Step S1: 30 mmol N-(hydroxymethyl)acrylamide, 10 mmol triethyl borate, 0.02 g phenothiazine and 50 mL benzene were added to a three-necked flask equipped with a stirrer, a thermometer, a gas guide tube and a reflux condenser, and nitrogen was introduced for protection. The mixture was stirred at 25° C. and a stirring rate of 300 r / min for 40 minutes, and then the temperature was raised to reflux and the stirring reaction was continued for 2 hours. After the reaction was completed, the reaction product was cooled to room temperature, and then the solvent was removed by rotary evaporation. The product was then added to anhydrous acetone, and then vacuum filtered. The filtrate was rotary evaporated to remove the solvent to obtain a polyene monomer;

[0035] Step S2: 10 mmol of a polyene monomer, 30 mmol of parachlorobenzotrifluoride, 35 mmol of anhydrous sodium carbonate, and 60 mL of benzene were added to a three-necked flask equipped with a stirrer, a thermometer, and a gas guide tube, and nitrogen was introduced for protection. The mixture was stirred at 25° C. and a stirring rate of 300 r / min for 40 minutes, and then the temperature was raised to 90° C. and the stirring reaction was continued for 6 hours. After the reaction was completed, the reaction product was cooled to room temperature, and then vacuum filtered. The filtrate was rotary evaporated to remove the solvent to obtain a polyene fluorinated monomer;

[0036] Step S3: 5 g of silicon carbide powder with an average particle size of 23 μm, 25 mL of deionized water and 35 mL of anhydrous ethanol were added to a three-necked flask equipped with a stirrer, a thermometer, an air guide tube and a reflux condenser, and ultrasonically treated for 20 min at an ultrasonic frequency of 30 kHz, and then the pH was adjusted to 9 with 20% ammonia water, and then ultrasonic treatment was continued for 10 min. Then, 0.9 g of silane coupling agent KH-570 was added and stirred for 20 min at a temperature of 25 ° C and a stirring rate of 300 r / min, and then the temperature was raised to reflux and the stirring reaction was continued for 2 h. After the reaction, the reaction product was cooled to room temperature and then centrifuged. The precipitate was washed with distilled water 3 times, and then placed in a vacuum drying oven and dried at a temperature of 70 ° C for 2 h to obtain alkenyl-modified silicon carbide;

[0037] Step S4: 15 mmol N-phenylmaleimide, 3 mmol polyolefin fluorine-containing monomer, 0.8 g olefin-modified silicon carbide and 50 mL cyclohexanone were added to a three-necked flask equipped with a stirrer, a thermometer and an air guide tube, and nitrogen was introduced for protection. The mixture was stirred and reacted at a temperature of 25° C. and a stirring rate of 300 r / min for 20 minutes, and then the temperature was raised to 40° C. and the stirring reaction was continued for 10 minutes. After that, azobisisobutyronitrile was added and the temperature was raised to 90° C. and the stirring reaction was continued for 6 hours. After the reaction was completed, the reaction product was cooled to room temperature and then poured into petroleum ether. Then, vacuum filtration was performed, and the filter cake was placed in a vacuum drying oven and dried at a temperature of 50° C. for 3 hours to obtain a wear-resistant reinforcement material;

[0038] Step S5: Weigh 80 parts of PVC resin, 20 parts of wear-resistant reinforcing material, 9 parts of diethyl phthalate, 5 parts of carbon black, 2 parts of aluminum hydroxide, 1 part of magnesium stearate, 0.5 parts of antioxidant, and 0.5 parts of ultraviolet absorber according to weight parts, and set aside; the PVC resin is DG-1000S; the antioxidant is antioxidant 1010; and the ultraviolet absorber is ultraviolet absorber UV-234;

[0039] Step S6: adding PVC resin, wear-resistant reinforcing material, diethyl phthalate, carbon black, aluminum hydroxide, magnesium stearate, antioxidant and ultraviolet absorber into a high-speed mixer, stirring and mixing at a temperature of 70° C. and a stirring rate of 600 r / min for 30 minutes to obtain a mixed material;

[0040] Step S7: adding the mixed material into an extruder, and after melt extrusion, coating the mixed material on the outside of the tape layer to form a dust-free and wear-resistant sheath layer, thereby obtaining a dust-free drag chain cable.

[0041] Example 3:

[0042] This embodiment is a production process for a dust-free drag chain cable, comprising the following steps:

[0043] Step S1: 30 mmol N-(hydroxymethyl)acrylamide, 10 mmol triethyl borate, 0.03 g phenothiazine and 55 mL benzene were added to a three-necked flask equipped with a stirrer, a thermometer, a gas guide tube and a reflux condenser, and nitrogen was introduced for protection. The mixture was stirred at a temperature of 28° C. and a stirring rate of 350 r / min for 50 minutes, and then the temperature was raised to reflux and the stirring reaction was continued for 2.5 hours. After the reaction was completed, the reaction product was cooled to room temperature, and then the solvent was removed by rotary evaporation. The product was then added to anhydrous acetone, and then vacuum filtered. The filtrate was rotary evaporated to remove the solvent to obtain a polyene monomer;

[0044] Step S2: 10 mmol of a polyene monomer, 30 mmol of parachlorobenzotrifluoride, 38 mmol of anhydrous sodium carbonate, and 65 mL of benzene were added to a three-necked flask equipped with a stirrer, a thermometer, and a gas guide tube, and nitrogen was introduced for protection. The mixture was stirred at 28° C. and a stirring rate of 350 r / min for 50 minutes, and then the temperature was raised to 92° C. and the stirring reaction was continued for 7 hours. After the reaction was completed, the reaction product was cooled to room temperature and then vacuum filtered. The filtrate was rotary evaporated to remove the solvent to obtain a polyene fluorinated monomer;

[0045] Step S3: 5 g of silicon carbide powder with an average particle size of 23 μm, 28 mL of deionized water and 38 mL of anhydrous ethanol were added to a three-necked flask equipped with a stirrer, a thermometer, an air guide tube and a reflux condenser, and ultrasonically treated for 25 min at an ultrasonic frequency of 35 kHz. The pH was then adjusted to 9.5 with 22% ammonia water, and the ultrasonic treatment was continued for 12 min. 2.2 g of silane coupling agent KH-570 was then added and stirred for 25 min at a temperature of 28 ° C and a stirring rate of 350 r / min. The temperature was then raised to reflux and the stirring reaction was continued for 2.5 h. After the reaction was completed, the reaction product was cooled to room temperature and then centrifuged. The precipitate was washed with distilled water 4 times and then placed in a vacuum drying oven and dried at a temperature of 72 ° C for 2.5 h to obtain alkenyl-modified silicon carbide;

[0046] Step S4: 15 mmol N-phenylmaleimide, 8 mmol polyolefin fluorine-containing monomer, 1.5 g olefin-modified silicon carbide and 55 mL cyclohexanone were added to a three-necked flask equipped with a stirrer, a thermometer and an air guide tube, and nitrogen was introduced for protection. The mixture was stirred at 28° C. and a stirring rate of 350 r / min for 25 minutes, and then the mixture was heated to 42° C. and the stirring reaction was continued for 15 minutes. After that, azobisisobutyronitrile was added and the mixture was heated to 95° C. and the stirring reaction was continued for 7 hours. After the reaction was completed, the reaction product was cooled to room temperature and then poured into petroleum ether. Then, the filter cake was placed in a vacuum drying oven and dried at 52° C. for 4 hours to obtain a wear-resistant reinforcement material.

[0047] Step S5: Weighing 85 parts of PVC resin, 28 parts of wear-resistant reinforcing material, 11 parts of diethyl phthalate, 6 parts of carbon black, 4 parts of aluminum hydroxide, 2 parts of magnesium stearate, 1 part of antioxidant, and 1 part of ultraviolet absorber according to weight parts, and setting aside; the PVC resin is DG-1000S; the antioxidant is antioxidant 1010; the ultraviolet absorber is ultraviolet absorber UV-234;

[0048] Step S6: adding PVC resin, wear-resistant reinforcing material, diethyl phthalate, carbon black, aluminum hydroxide, magnesium stearate, antioxidant and ultraviolet absorber into a high-speed mixer, stirring and mixing at a temperature of 75° C. and a stirring rate of 700 r / min for 40 minutes to obtain a mixed material;

[0049] Step S7: adding the mixed material into an extruder, and after melt extrusion, coating the mixed material on the outside of the tape layer to form a dust-free and wear-resistant sheath layer, thereby obtaining a dust-free drag chain cable.

[0050] Example 4:

[0051] This embodiment is a production process for a dust-free drag chain cable, comprising the following steps:

[0052] Step S1: 30 mmol N-(hydroxymethyl)acrylamide, 10 mmol triethyl borate, 0.04 g phenothiazine and 60 mL benzene were added to a three-necked flask equipped with a stirrer, a thermometer, a gas guide tube and a reflux condenser, and nitrogen was introduced for protection. The mixture was stirred at a temperature of 30° C. and a stirring rate of 400 r / min for 60 minutes, and then the temperature was raised to reflux and the stirring reaction was continued for 3 hours. After the reaction was completed, the reaction product was cooled to room temperature, and then the solvent was removed by rotary evaporation. The product was then added to anhydrous acetone, and then vacuum filtered. The filtrate was rotary evaporated to remove the solvent to obtain a polyene monomer;

[0053] Step S2: 10 mmol of a polyene monomer, 30 mmol of parachlorobenzotrifluoride, 40 mmol of anhydrous sodium carbonate, and 70 mL of benzene were added to a three-necked flask equipped with a stirrer, a thermometer, and a gas guide tube, and nitrogen was introduced for protection. The mixture was stirred at 30° C. and a stirring rate of 400 r / min for 60 minutes, and then the temperature was raised to 95° C. and the stirring reaction was continued for 8 hours. After the reaction was completed, the reaction product was cooled to room temperature and then vacuum filtered. The filtrate was rotary evaporated to remove the solvent to obtain a polyene fluorinated monomer;

[0054] Step S3: 5 g of silicon carbide powder with an average particle size of 23 μm, 30 mL of deionized water and 40 mL of anhydrous ethanol were added to a three-necked flask equipped with a stirrer, a thermometer, an air guide tube and a reflux condenser, and ultrasonically treated for 30 min at an ultrasonic frequency of 40 kHz, and then the pH was adjusted to 10 with 25% ammonia water, and then ultrasonic treatment was continued for 15 min. Then, 3.5 g of silane coupling agent KH-570 was added and stirred for 30 min at a temperature of 30° C. and a stirring rate of 400 r / min. Then, the temperature was raised to reflux and the stirring reaction was continued for 3 h. After the reaction, the reaction product was cooled to room temperature and then centrifuged. The precipitate was washed with distilled water 5 times, and then placed in a vacuum drying oven and dried at a temperature of 75° C. for 3 h to obtain alkenyl-modified silicon carbide;

[0055] Step S4: 15 mmol N-phenylmaleimide, 13 mmol polyolefin fluorine-containing monomer, 2.2 g olefin-modified silicon carbide and 60 mL cyclohexanone were added to a three-necked flask equipped with a stirrer, a thermometer and an air guide tube, and nitrogen was introduced for protection. The mixture was stirred at 30° C. and a stirring rate of 400 r / min for 30 minutes, and then the mixture was heated to 45° C. and the stirring reaction was continued for 20 minutes. After that, azobisisobutyronitrile was added and the mixture was heated to 100° C. and the stirring reaction was continued for 8 hours. After the reaction was completed, the reaction product was cooled to room temperature and then poured into petroleum ether. Then, the filter cake was placed in a vacuum drying oven and dried at 55° C. for 5 hours to obtain a wear-resistant reinforcement material;

[0056] Step S5: Weigh 90 parts of PVC resin, 36 parts of wear-resistant reinforcing material, 13 parts of diethyl phthalate, 7 parts of carbon black, 6 parts of aluminum hydroxide, 3 parts of magnesium stearate, 1.5 parts of antioxidant, and 1.5 parts of ultraviolet absorber according to weight, and set aside; the PVC resin is DG-1000S; the antioxidant is antioxidant 1010; and the ultraviolet absorber is ultraviolet absorber UV-234;

[0057] Step S6: adding PVC resin, wear-resistant reinforcing material, diethyl phthalate, carbon black, aluminum hydroxide, magnesium stearate, antioxidant and ultraviolet absorber into a high-speed mixer, stirring and mixing at a temperature of 80° C. and a stirring rate of 800 r / min for 50 minutes to obtain a mixed material;

[0058] Step S7: adding the mixed material into an extruder, and after melt extrusion, coating the mixed material on the outside of the tape layer to form a dust-free and wear-resistant sheath layer, thereby obtaining a dust-free drag chain cable.

[0059] Comparative Example 1:

[0060] This comparative example is a production process for a dust-free drag chain cable, comprising the following steps:

[0061] Step S1: Weigh 90 parts of PVC resin, 13 parts of diethyl phthalate, 7 parts of carbon black, 6 parts of aluminum hydroxide, 3 parts of magnesium stearate, 1.5 parts of antioxidant, and 1.5 parts of ultraviolet absorber according to weight, and set aside; the PVC resin is DG-1000S; the antioxidant is antioxidant 1010; and the ultraviolet absorber is ultraviolet absorber UV-234;

[0062] Step S2: adding PVC resin, diethyl phthalate, carbon black, aluminum hydroxide, magnesium stearate, antioxidant, and ultraviolet absorber into a high-speed mixer, stirring and mixing at a temperature of 80° C. and a stirring rate of 800 r / min for 50 minutes to obtain a mixed material;

[0063] Step S3: adding the mixed material into an extruder, and after melt extrusion, coating the mixed material on the outside of the tape layer to form a dust-free and wear-resistant sheath layer, thereby obtaining a dust-free drag chain cable.

[0064] Comparative Example 2:

[0065] This comparative example is a production process for a dust-free drag chain cable, comprising the following steps:

[0066] Step S1: 15 mmol N-phenylmaleimide and 60 mL cyclohexanone were added to a three-necked flask equipped with a stirrer, a thermometer, and an air guide tube, and nitrogen was introduced for protection. The mixture was stirred at 30° C. and a stirring rate of 400 r / min for 30 minutes, and then the temperature was raised to 45° C. and the stirring reaction was continued for 20 minutes. Then, azobisisobutyronitrile was added and the temperature was raised to 100° C. and the stirring reaction was continued for 8 hours. After the reaction was completed, the reaction product was cooled to room temperature and then poured into petroleum ether. Then, vacuum filtration was performed, and the filter cake was placed in a vacuum drying oven and dried at 55° C. for 5 hours to obtain a wear-resistant reinforcement material;

[0067] Step S2: Weigh 90 parts of PVC resin, 36 parts of wear-resistant reinforcing material, 13 parts of diethyl phthalate, 7 parts of carbon black, 6 parts of aluminum hydroxide, 3 parts of magnesium stearate, 1.5 parts of antioxidant, and 1.5 parts of ultraviolet absorber according to weight, and set aside; the PVC resin is DG-1000S; the antioxidant is antioxidant 1010; and the ultraviolet absorber is ultraviolet absorber UV-234;

[0068] Step S3: adding PVC resin, wear-resistant reinforcing material, diethyl phthalate, carbon black, aluminum hydroxide, magnesium stearate, antioxidant and ultraviolet absorber into a high-speed mixer, stirring and mixing at a temperature of 80° C. and a stirring rate of 800 r / min for 50 minutes to obtain a mixed material;

[0069] Step S4: adding the mixed material into an extruder, melting and extruding the mixed material and coating the mixed material on the outside of the tape layer to form a dust-free and wear-resistant sheath layer, thereby obtaining a dust-free drag chain cable.

[0070] Comparative Example 3:

[0071] This comparative example is a production process for a dust-free drag chain cable, comprising the following steps:

[0072] Step S1: 30 mmol N-(hydroxymethyl)acrylamide, 10 mmol triethyl borate, 0.04 g phenothiazine and 60 mL benzene were added to a three-necked flask equipped with a stirrer, a thermometer, a gas guide tube and a reflux condenser, and nitrogen was introduced for protection. The mixture was stirred at a temperature of 30° C. and a stirring rate of 400 r / min for 60 minutes, and then the temperature was raised to reflux and the stirring reaction was continued for 3 hours. After the reaction was completed, the reaction product was cooled to room temperature, and then the solvent was removed by rotary evaporation. The product was then added to anhydrous acetone, and then vacuum filtered. The filtrate was rotary evaporated to remove the solvent to obtain a polyene monomer;

[0073] Step S2: 10 mmol of a polyene monomer, 30 mmol of parachlorobenzotrifluoride, 40 mmol of anhydrous sodium carbonate, and 70 mL of benzene were added to a three-necked flask equipped with a stirrer, a thermometer, and a gas guide tube, and nitrogen was introduced for protection. The mixture was stirred at 30° C. and a stirring rate of 400 r / min for 60 minutes, and then the temperature was raised to 95° C. and the stirring reaction was continued for 8 hours. After the reaction was completed, the reaction product was cooled to room temperature and then vacuum filtered. The filtrate was rotary evaporated to remove the solvent to obtain a polyene fluorinated monomer;

[0074] Step S3: 15 mmol N-phenylmaleimide, 13 mmol polyolefin fluorinated monomer and 60 mL cyclohexanone were added to a three-necked flask equipped with a stirrer, a thermometer and an air guide tube, and nitrogen was introduced for protection. The mixture was stirred at 30° C. and a stirring rate of 400 r / min for 30 minutes, and then the temperature was raised to 45° C. and the stirring reaction was continued for 20 minutes. Then, azobisisobutyronitrile was added and the temperature was raised to 100° C. and the stirring reaction was continued for 8 hours. After the reaction was completed, the reaction product was cooled to room temperature and then poured into petroleum ether. Then, vacuum filtration was performed, and the filter cake was placed in a vacuum drying oven and dried at 55° C. for 5 hours to obtain a wear-resistant reinforcement material;

[0075] Step S4: Weigh 90 parts of PVC resin, 36 parts of wear-resistant reinforcing material, 13 parts of diethyl phthalate, 7 parts of carbon black, 6 parts of aluminum hydroxide, 3 parts of magnesium stearate, 1.5 parts of antioxidant, and 1.5 parts of ultraviolet absorber according to weight, and set aside; the PVC resin is DG-1000S; the antioxidant is antioxidant 1010; and the ultraviolet absorber is ultraviolet absorber UV-234;

[0076] Step S5: adding PVC resin, wear-resistant reinforcing material, diethyl phthalate, carbon black, aluminum hydroxide, magnesium stearate, antioxidant and ultraviolet absorber into a high-speed mixer, stirring and mixing at a temperature of 80° C. and a stirring rate of 800 r / min for 50 minutes to obtain a mixed material;

[0077] Step S6: adding the mixed material into an extruder, melting and extruding the mixed material and coating the mixed material on the outside of the tape layer to form a dust-free and wear-resistant sheath layer, thereby obtaining a dust-free drag chain cable.

[0078] Comparative Example 4:

[0079] This comparative example is a production process for a dust-free drag chain cable, comprising the following steps:

[0080] Step S1: 5 g of silicon carbide powder with an average particle size of 23 μm, 30 mL of deionized water and 40 mL of anhydrous ethanol were added to a three-necked flask equipped with a stirrer, a thermometer, an air guide tube and a reflux condenser, and ultrasonically treated for 30 min at an ultrasonic frequency of 40 kHz, and then the pH was adjusted to 10 with 25% ammonia water, and then ultrasonic treatment was continued for 15 min. Then, 3.5 g of silane coupling agent KH-570 was added and stirred for 30 min at a temperature of 30° C. and a stirring rate of 400 r / min. Then, the temperature was raised to reflux and the stirring reaction was continued for 3 h. After the reaction, the reaction product was cooled to room temperature and then centrifuged. The precipitate was washed with distilled water 5 times, and then placed in a vacuum drying oven and dried at a temperature of 75° C. for 3 h to obtain alkenyl-modified silicon carbide;

[0081] Step S2: 15 mmol N-phenylmaleimide, 2.2 g alkenyl-modified silicon carbide and 60 mL cyclohexanone were added to a three-necked flask equipped with a stirrer, a thermometer and an air guide tube, and nitrogen was introduced for protection. The mixture was stirred at a temperature of 30° C. and a stirring rate of 400 r / min for 30 minutes, and then the mixture was heated to 45° C. and the stirring reaction was continued for 20 minutes. After that, azobisisobutyronitrile was added and the mixture was heated to 100° C. and the stirring reaction was continued for 8 hours. After the reaction was completed, the reaction product was cooled to room temperature and then poured into petroleum ether. Then, the filter cake was placed in a vacuum drying oven and dried at a temperature of 55° C. for 5 hours to obtain a wear-resistant reinforcement material;

[0082] Step S3: Weigh 90 parts of PVC resin, 36 parts of wear-resistant reinforcing material, 13 parts of diethyl phthalate, 7 parts of carbon black, 6 parts of aluminum hydroxide, 3 parts of magnesium stearate, 1.5 parts of antioxidant, and 1.5 parts of ultraviolet absorber according to weight, and set aside; the PVC resin is DG-1000S; the antioxidant is antioxidant 1010; and the ultraviolet absorber is ultraviolet absorber UV-234;

[0083] Step S4: adding PVC resin, wear-resistant reinforcing material, diethyl phthalate, carbon black, aluminum hydroxide, magnesium stearate, antioxidant and ultraviolet absorber into a high-speed mixer, stirring and mixing at a temperature of 80° C. and a stirring rate of 800 r / min for 50 minutes to obtain a mixed material;

[0084] Step S5: adding the mixed material into an extruder, melting and extruding the mixed material and coating the mixed material on the outside of the tape layer to form a dust-free and wear-resistant sheath layer, thereby obtaining a dust-free drag chain cable.

[0085] The dust-free drag chain cables of Examples 2-4 and Comparative Examples 1-4 were subjected to performance tests, and the test methods were as follows:

[0086] Test the tensile strength of the dust-free and wear-resistant sheath layer of the dust-free drag chain cable according to GB / T 2951.6-1994;

[0087] Test the wear volume of the dust-free wear-resistant sheath layer of the dust-free drag chain cable according to ISO 4649-2017;

[0088] Test the oxygen index of the dust-free and wear-resistant sheath layer of the dust-free drag chain cable according to GB / T 2406.2-2009;

[0089] The dust-free, wear-resistant sheath of the dust-free drag chain cable is installed on a simulated drag chain device and subjected to 10,000 bending and movement tests to simulate the movement of the drag chain. A dust detector is used to test the dust content in the test environment according to ISO 14644-1 Class 1 test.

[0090] The test results are shown in the following table:

[0091] sample Tensile strength, MPa <![CDATA[Wear volume, mm 3 > Oxygen index, % <![CDATA[Dust content, mg / m 2 > Example 2 19.8 52 32.2 0.05 Example 3 21.1 48 33.9 0.04 Example 4 22.6 43 35.3 0.02 Comparative Example 1 10.3 96 26.1 1.12 Comparative Example 2 14.6 85 29.5 0.88 Comparative Example 3 17.9 68 31.8 0.09 Comparative Example 4 19.0 71 30.4 0.11

[0092] Referring to the data in the above table, it can be seen that the dust-free drag chain cable of the present application has excellent mechanical properties, wear resistance, dustproof properties and flame retardant properties.

[0093] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0094] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in similar ways. As long as they do not deviate from the invention or exceed the scope defined in this application, they should all fall within the scope of protection of the present invention.

Claims

1. A dust-free drag chain cable, characterized in that: The core wire comprises a conductor and an insulating layer covering the outside of the conductor, a filler is filled between several strands of the core wire, a tape layer is covered on the outside of several strands of the core wire, and a dust-free and wear-resistant sheath layer is covered on the outside of the tape layer; The dust-free and wear-resistant jacket layer is prepared by the following steps: Step 1: Add PVC resin, wear-resistant reinforcing material, diethyl phthalate, carbon black, aluminum hydroxide, magnesium stearate, antioxidant and ultraviolet absorber into a high-speed mixer, stir and mix at a temperature of 70-80° C. and a stirring rate of 600-800 r / min for 30-50 minutes to obtain a mixed material; Step 2: Add the mixed material into the extruder, melt and extrude it, and coat it on the outside of the tape layer to form a dust-free and wear-resistant sheath layer to obtain a dust-free drag chain cable; Wherein, the wear-resistant reinforcing material is prepared by the following steps: Step s1: N-(hydroxymethyl)acrylamide, triethyl borate, phenothiazine, and benzene are stirred for reaction. After the reaction, the reaction product is cooled, then rotary evaporated, and then added to anhydrous acetone. The product is then vacuum filtered and the filtrate is rotary evaporated to obtain a polyene monomer. Step s2: stirring a polyene monomer, parachlorobenzotrifluoride, anhydrous sodium carbonate, and benzene to react. After the reaction is completed, the reaction product is cooled, then vacuum filtered, and the filtrate is rotary evaporated to obtain a polyene fluorinated monomer; Step s3: ultrasonically treating silicon carbide powder, deionized water, and anhydrous ethanol, adjusting the pH with aqueous ammonia, and then adding a silane coupling agent KH-570 for stirring and reacting. After the reaction is completed, the reaction product is cooled and centrifuged, and the precipitate is washed and dried to obtain alkenyl-modified silicon carbide; Step s4: N-phenylmaleimide, polyolefinic fluorine-containing monomer, olefin-modified silicon carbide and cyclohexanone are stirred for reaction, and then azobisisobutyronitrile is added and the stirring reaction is continued. After the reaction is completed, the reaction product is cooled and then poured into petroleum ether, and then vacuum filtered. The filter cake is then dried to obtain a wear-resistant reinforcement material.

2. A dust-free drag chain cable according to claim 1, characterized in that: The dust-free wear-resistant jacket layer comprises the following components in parts by weight: 80-90 parts of PVC resin, 20-36 parts of wear-resistant reinforcing material, 9-13 parts of diethyl phthalate, 5-7 parts of carbon black, 2-6 parts of aluminum hydroxide, 1-3 parts of magnesium stearate, 0.5-1.5 parts of antioxidant and 0.5-1.5 parts of ultraviolet absorber.

3. A dust-free drag chain cable according to claim 2, characterized in that: The PVC resin is DG-1000S; the antioxidant is antioxidant 1010; and the ultraviolet absorber is ultraviolet absorber UV-234.

4. The dust-free drag chain cable according to claim 1, characterized in that: The usage ratio of N-(hydroxymethyl)acrylamide, triethyl borate, phenothiazine and benzene in step s1 is 30 mmol:10 mmol:0.02-0.04 g:50-60 mL.

5. The dust-free drag chain cable according to claim 1, characterized in that: The usage ratio of the polyolefin monomer, parachlorobenzotrifluoride, anhydrous sodium carbonate and benzene in step s2 is 10 mmol: 30 mmol: 35-40 mmol: 60-70 mL.

6. The dust-free drag chain cable according to claim 1, characterized in that: The usage ratio of the silicon carbide powder, deionized water, anhydrous ethanol and silane coupling agent KH-570 in step s3 is 5g:25-30mL:35-40mL:0.9-3.5g.

7. The dust-free drag chain cable according to claim 1, characterized in that: The average particle size of the silicon carbide powder in step s3 is 23 μm; the mass fraction of the ammonia water is 20-25%.

8. The dust-free drag chain cable according to claim 1, characterized in that: The usage ratio of the N-phenylmaleimide, the polyalkenyl fluorine-containing monomer, the alkenyl-modified silicon carbide and the cyclohexanone in step s4 is 15 mmol: 3-13 mmol: 0.8-2.2 g: 50-60 mL.

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