A preparation method of a new energy vehicle data connection wire harness

Abstract

The application relates to a preparation method of a new energy automobile data connecting wire harness, and belongs to the technical field of new energy automobiles; through functionalization of carbon fibers, amino groups and thioether structures with good coordination ability are grafted on the surface of the functionalized carbon fibers; the structures can provide stable nucleation sites, reduce nucleation energy barriers, promote uniform nucleation, and enhance the combination ability of the functionalized carbon fibers and a plating layer, significantly improve the coverage and density of the plating layer, build a continuous and efficient conductive network, significantly improve the conductivity, and further significantly enhance the electromagnetic shielding efficiency of the modified carbon fibers; and through polarization, the limited charges and polar dipoles at the interface cannot completely follow the changes of the high-frequency electromagnetic field, the lag response process continuously converts the electromagnetic field energy into heat energy and dissipates, electromagnetic wave secondary reflection is significantly reduced while the electromagnetic shielding efficiency of the modified carbon fibers is maintained.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of new energy vehicles, and particularly relates to a preparation method of a new energy vehicle data connection wire harness. BACKGROUND

[0002] As a core transmission carrier of the vehicle electrical system, the electromagnetic shielding performance of the new energy vehicle data connection wire harness is directly related to the electromagnetic compatibility of the vehicle and the reliability of the electronic equipment. With the development of automobile electrification and intelligentization, there are more and more electronic equipment on the vehicle, and the signal transmission frequency is also higher and higher, resulting in a significant increase in the number and strength of electromagnetic interference sources. The electromagnetic shielding performance of the automobile data connection wire harness in the prior art cannot meet the use requirements of new energy vehicles. When the shielding effectiveness is insufficient, external interference can invade the wire harness through capacitive coupling, causing controller area network bus signal delay, amplitude jump and timing disorder, resulting in vehicle control module false alarm or functional failure. Especially, high-frequency video signals are more susceptible to interference, causing image distortion or interruption, which directly affects the reliability of the intelligent driving system. In order to solve the above technical defects, the application provides a preparation method of a new energy vehicle data connection wire harness. SUMMARY

[0003] The application aims to provide a preparation method of a new energy vehicle data connection wire harness, which is used to solve the problems mentioned in the background.

[0004] The application can be achieved by the following technical solutions.

[0005] A preparation method of a new energy vehicle data connection wire harness, comprising the following steps:

[0006] Firstly, carbon fibers are removed from the surface sizing agent and oxidized to obtain oxidized carbon fibers.

[0007] Secondly, silane coupling agents are grafted on the surface of the oxidized carbon fibers, and then reacted with 4,4'-diamino diphenyl sulfide to obtain functionalized carbon fibers.

[0008] Thirdly, the functionalized carbon fibers are plated with nickel and then heat-treated to obtain modified carbon fibers.

[0009] Fourthly, the modified carbon fibers are wrapped around the wire core, and a polyphenylene sulfide-based composite material is melt-extruded and coated outside the wire core wrapped with the modified carbon fibers to obtain the new energy vehicle data connection wire harness.

[0010] As a further preferred embodiment of the application, the preparation steps of the oxidized carbon fibers are as follows:

[0011] The sizing agent on the surface of the carbon fiber is removed by using a Soxhlet extractor, the extraction solvent is acetone, the extraction temperature is 40-60 DEG C, the extraction time is 12-24h, after the extraction is finished, the carbon fiber is taken out and washed with anhydrous ethanol and deionized water in sequence and dried, then the extracted and dried carbon fiber, silver nitrate, potassium persulfate and deionized water are mixed in a reaction bottle provided with a condenser tube, a thermometer and a magnetic stirring rotor, the magnetic stirring is started, and after stirring for 3-4h at a temperature of 70-80 DEG C, the solid is filtered out and washed with anhydrous ethanol and deionized water in sequence and dried to obtain the oxidized carbon fiber.

[0012] As a further preferred embodiment of the present application, the preparation steps of the functionalized carbon fiber are:

[0013] The oxidized carbon fiber, silane coupling agent and toluene are mixed in a reaction bottle provided with a condenser tube, a thermometer and a magnetic stirring rotor, the magnetic stirring is started, and after reaction for 8-16h at a temperature of 60-100 DEG C, the oxidized carbon fiber is filtered out and washed with anhydrous ethanol and deionized water in sequence and dried, then the reacted and dried oxidized carbon fiber, 4,4'-diaminodiphenyl sulfide and toluene are mixed in a reaction bottle provided with a condenser tube, a thermometer and a magnetic stirring rotor, the magnetic stirring is started, and after reaction for 2-4h at a temperature of 30-60 DEG C, the oxidized carbon fiber is filtered out and washed with anhydrous ethanol and deionized water in sequence and dried to obtain the functionalized carbon fiber.

[0014] As a further preferred embodiment of the present application, the preparation steps of the modified carbon fiber are:

[0015] The functionalized carbon fiber is soaked in a palladium chloride solution for 1-2min and then added into a sluice, the plating solution in the sluice contains a nickel source, a reducing agent, a complexing agent and ammonia water, and the plating solution is preheated to 70-90 DEG C, the nickel plating time is 20-60min, after the nickel plating is completed, the functionalized carbon fiber is taken out and washed with deionized water and dried, and then heated to 200-300 DEG C under nitrogen protection and heat treated for 40-120min to obtain the modified carbon fiber.

[0016] As a further preferred embodiment of the present application, the preparation steps of the new energy automobile data connection wire harness are:

[0017] The modified carbon fiber is wrapped around the wire core, and polyphenylene sulfide, nylon 66, a compatibilizer, modified glass fiber, polytetrafluoroethylene powder and an antioxidant are mixed and added into a twin-screw extruder for melt extrusion to coat the outside of the wire core wrapped with the modified carbon fiber to obtain the new energy automobile data connection wire harness.

[0018] As a further preferred embodiment of the present application, the preparation steps of the modified glass fiber are:

[0019] The glass fiber, silane coupling agent and toluene are mixed in a reaction bottle equipped with a condenser, a thermometer and a magnetic stirring rotor, and after the magnetic stirring is started, the mixture is reacted at a temperature of 60-100 DEG C for 6-12 hours, and after the reaction is completed, the glass fiber is filtered out and washed with anhydrous ethanol and deionized water in sequence and dried to obtain the modified glass fiber.

[0020] As a further preferred embodiment of the present application, the silane coupling agent is kh-560.

[0021] As a further preferred embodiment of the present application, the nickel source is nickel sulfate, the reducing agent is at least one of dimethylamine borane and sodium hypophosphite, and the complexing agent is at least one of sodium citrate and sodium malate.

[0022] As a further preferred embodiment of the present application, the antioxidant is at least one of antioxidant 1010, antioxidant 1035, sodium hypophosphite and antioxidant 168.

[0023] As a further preferred embodiment of the present application, the compatibilizer is ethylene-glycidyl methacrylate copolymer (EGMA).

[0024] As a further preferred embodiment of the present application, the temperature condition for melt extrusion is 290-300 DEG C.

[0025] The present application has at least one of the following advantages:

[0026] The present application functionalizes carbon fibers by grafting amino groups and thioether structures with good coordination ability on the surface of the functionalized carbon fibers, which can provide stable nucleation sites, reduce nucleation energy barrier, promote uniform nucleation, and enhance the binding ability of the functionalized carbon fibers and the plated layer, significantly improving the coverage and density of the plated layer, building a continuous and efficient conductive network, significantly improving the electrical conductivity, and further significantly enhancing the electromagnetic shielding efficiency of the modified carbon fibers.

[0027] Carbon fibers themselves have good electromagnetic shielding efficiency, but their high electrical conductivity can cause significant electromagnetic wave reflection, leading to secondary electromagnetic pollution. The modified carbon fibers of the present application have aromatic ring structures grafted on the surface, forming a large number of new heterogeneous interfaces between the modified carbon fibers and the aromatic ring grafting layer, and between the aromatic ring molecules. Under the action of alternating electromagnetic field, significant interface polarization loss can be generated. At the same time, the polar groups in the aromatic ring grafting layer structure will also cause dipole orientation polarization relaxation under the action of electromagnetic field. The polarization effect causes the limited charges and polar dipoles at the interface to be unable to completely follow the changes of high-frequency electromagnetic field, and their lagging response process continuously converts the energy of electromagnetic field into heat energy and dissipates, thereby significantly reducing the secondary reflection of electromagnetic waves while maintaining the electromagnetic shielding efficiency of the modified carbon fibers.

[0028] The modified carbon fiber surface of the application is covered with a dense metal plating layer, and the thioether bond in the polyphenylene sulfide also has good coordination ability, which can significantly improve the binding force of the polyphenylene sulfide-based outer sheath and the modified carbon fiber wrapped around the outer side of the core, effectively reduce the relative sliding and fretting wear between the modified carbon fiber and the outer sheath during vibration, and thus effectively reduce the friction damage of the new energy automobile data connection wire harness during the vibration process of automobile operation. DETAILED DESCRIPTION

[0029] The technical solutions of the embodiments of the application will be described below clearly and completely. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the specification of the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the application.

[0030] Among them, all raw materials of the application have no special restrictions on their sources, and can be purchased on the market or prepared according to the conventional methods well known to those skilled in the art.

[0031] Embodiment 1:

[0032] A preparation method of a new energy automobile data connection wire harness, comprising the following steps:

[0033] First step: remove the sizing agent on the surface of the carbon fiber by using a Soxhlet extractor, the extraction solvent is acetone, the extraction temperature is 40℃, the extraction time is 24h, after the extraction is completed, the carbon fiber is taken out and washed with anhydrous ethanol and deionized water in sequence and then dried, then 80g of the extracted and dried carbon fiber, 5g of silver nitrate, 80g of potassium persulfate and 2000g of deionized water are mixed in a reaction bottle provided with a condenser tube, a thermometer and a magnetic stirring rotor, the magnetic stirring is started, and then the mixture is stirred at a temperature of 70℃ for 4h, after the reaction is completed, the solid is filtered out and washed with anhydrous ethanol and deionized water in sequence and then dried to obtain oxidized carbon fiber.

[0034] Second step: mix 75g of the oxidized carbon fiber, 15g of silane coupling agent kh-560 and 750g of toluene in a reaction bottle provided with a condenser tube, a thermometer and a magnetic stirring rotor, start the magnetic stirring, and then react at a temperature of 60℃ for 16h, after the reaction is completed, the oxidized carbon fiber is filtered out and washed with anhydrous ethanol and deionized water in sequence and then dried, then 75g of the reacted and dried oxidized carbon fiber, 25g of 4,4'-diamino diphenyl sulfide and 750g of toluene are mixed in a reaction bottle provided with a condenser tube, a thermometer and a magnetic stirring rotor, the magnetic stirring is started, and then the mixture is reacted at a temperature of 30℃ for 4h, after the reaction is completed, the oxidized carbon fiber is filtered out and washed with anhydrous ethanol and deionized water in sequence and then dried to obtain functionalized carbon fiber.

[0035] Third step: the functional carbon fiber is immersed in a 0.1 g / L palladium chloride solution for 2 min, and then is added into the flume, wherein each liter of the plating solution contains 25 g of nickel sulfate, 12 g of dimethylamine borane, 40 g of sodium citrate, and the rest is 3% ammonia water, and the plating solution is preheated to 70℃, the nickel plating time is 60 min, after the nickel plating is completed, the functional carbon fiber is taken out, washed with deionized water and dried, and then is heated to 200℃ under the condition of nitrogen protection and heat treated for 120 min to obtain the modified carbon fiber.

[0036] Fourth step: 150 g of glass fiber, 15 g of silane coupling agent kh-560 and 1000 g of toluene are mixed in a reaction bottle provided with a condenser, a thermometer and a magnetic stirring rotor, and after the magnetic stirring is started, the reaction is carried out at a temperature of 60℃ for 12 h, after the reaction is completed, the glass fiber is filtered out and washed with anhydrous ethanol and deionized water in sequence and then dried to obtain the modified glass fiber.

[0037] Fifth step: the modified carbon fiber is wound around the core, and 500 g of polyphenylene sulfide, 100 g of nylon 66, 50 g of ethylene-glycidyl methacrylate copolymer, 150 g of modified glass fiber, 30 g of polytetrafluoroethylene powder, 2 g of antioxidant 1010 and 1 g of antioxidant 168 are mixed and then added into a double screw extruder, and after the melt extrusion is carried out at a temperature of 300℃, the new energy automobile data connection wire harness is obtained, which is coated outside the core wound with the modified carbon fiber.

[0038] Example 2:

[0039] A preparation method of a new energy automobile data connection wire harness, comprising the following steps:

[0040] First step: the sizing agent on the surface of the carbon fiber is removed by using a Soxhlet extractor, the extraction solvent is acetone, the extraction temperature is 60℃, and the extraction time is 12 h, after the extraction is completed, the carbon fiber is taken out and washed with anhydrous ethanol and deionized water in sequence and then dried, and then 100 g of the extracted and dried carbon fiber, 8 g of silver nitrate, 100 g of potassium persulfate and 2500 g of deionized water are mixed in a reaction bottle provided with a condenser, a thermometer and a magnetic stirring rotor, and after the magnetic stirring is started, the stirring is carried out at a temperature of 80℃ for 3 h, after the reaction is completed, the solid is filtered out and washed with anhydrous ethanol and deionized water in sequence and then dried to obtain the oxidized carbon fiber.

[0041] Second step: 90 g of oxidized carbon fiber, 18 g of silane coupling agent kh-560, 900 g of toluene are mixed in a reaction bottle equipped with a condenser, a thermometer, and a magnetic stirring rotor. After starting the magnetic stirring, the reaction is carried out at a temperature of 100℃ for 8h. After the reaction is completed, the oxidized carbon fiber is filtered out and washed with anhydrous ethanol and deionized water in turn, and then dried. Then 90 g of the dried and reacted oxidized carbon fiber, 35 g of 4,4'-diamino diphenyl sulfide, and 900 g of toluene are mixed in a reaction bottle equipped with a condenser, a thermometer, and a magnetic stirring rotor. After starting the magnetic stirring, the reaction is carried out at a temperature of 60℃ for 2h. After the reaction is completed, the oxidized carbon fiber is filtered out and washed with anhydrous ethanol and deionized water in turn, and then dried to obtain functionalized carbon fiber.

[0042] Third step: The functionalized carbon fiber is soaked in a 0.5g / L palladium chloride solution for 1min and then added to the sluice. Each liter of plating solution in the sluice contains 40g of nickel sulfate, 20g of sodium hypophosphite, 60g of sodium citrate, and the rest is 5% ammonia water. The plating solution is preheated to 90℃. The nickel plating time is 20min. After nickel plating is completed, the functionalized carbon fiber is taken out and washed with deionized water and then dried. Then it is heated to 300℃ under nitrogen protection and kept for 40min to obtain modified carbon fiber.

[0043] Fourth step: 250g of glass fiber, 25g of silane coupling agent kh-560, and 2500g of toluene are mixed in a reaction bottle equipped with a condenser, a thermometer, and a magnetic stirring rotor. After starting the magnetic stirring, the reaction is carried out at a temperature of 100℃ for 6h. After the reaction is completed, the glass fiber is filtered out and washed with anhydrous ethanol and deionized water in turn, and then dried to obtain modified glass fiber.

[0044] Fifth step: The modified carbon fiber is wrapped around the core, and 600g of polyphenylene sulfide, 200g of nylon 66, 80g of ethylene-glycidyl methacrylate copolymer, 250g of modified glass fiber, 60g of polytetrafluoroethylene powder, 6g of antioxidant 1035, and 4g of sodium hypophosphite are mixed and then added to a twin-screw extruder. After melt extrusion at a temperature of 290℃, the new energy automobile data connection wire harness is obtained outside the wire core wrapped with modified carbon fiber.

[0045] Example 3:

[0046] A method for preparing a new energy automobile data connection wire harness, comprising the following steps:

[0047] First step: remove sizing agent on the surface of carbon fiber by Soxhlet extractor, extraction solvent is acetone, extraction temperature is 50℃, extraction time is 18h, after extraction, take out carbon fiber and wash with anhydrous ethanol, deionized water in turn, then dry, mix 90g extracted and dried carbon fiber, 6.5g silver nitrate, 90g potassium persulfate, 2250g deionized water in a reaction bottle equipped with condenser, thermometer, magnetic stirring rotor, open the magnetic stirring after the temperature is 75℃, stirring for 3.5h, after reaction, filter out the solid and wash with anhydrous ethanol, deionized water in turn, then dry to get oxidized carbon fiber.

[0048] Second step: mix 82.5g oxidized carbon fiber, 16.5g silane coupling agent kh-560, 825g toluene in a reaction bottle equipped with condenser, thermometer, magnetic stirring rotor, open the magnetic stirring after the temperature is 80℃, reaction for 12h, after reaction, filter out the oxidized carbon fiber and wash with anhydrous ethanol, deionized water in turn, then dry, mix 82.5g reacted and dried oxidized carbon fiber, 30g 4,4'-diaminodiphenyl sulfide, 825g toluene in a reaction bottle equipped with condenser, thermometer, magnetic stirring rotor, open the magnetic stirring after the temperature is 45℃, reaction for 3h, after reaction, filter out the oxidized carbon fiber and wash with anhydrous ethanol, deionized water in turn, then dry to get functionalized carbon fiber.

[0049] Third step: soak the functionalized carbon fiber in 0.3g / L palladium chloride solution for 1.5min, then add it into the sluice, the sluice contains 32.5g nickel sulfate, 16g dimethylamine borane, 50g sodium malate per liter of plating solution, the rest is 4% ammonia water, and the plating solution is preheated to 80℃, the plating time is 40min, after plating, take out the functionalized carbon fiber and wash with deionized water, then dry, after that, heat to 250℃ under nitrogen protection and keep for 80min to get modified carbon fiber.

[0050] Fourth step: mix 200g glass fiber, 20g silane coupling agent kh-560, 1750g toluene in a reaction bottle equipped with condenser, thermometer, magnetic stirring rotor, open the magnetic stirring after the temperature is 80℃, reaction for 9h, after reaction, filter out the glass fiber and wash with anhydrous ethanol, deionized water in turn, then dry to get modified glass fiber.

[0051] Fifth step: winding the modified carbon fiber around the core, and mixing 550g of polyphenylene sulfide, 150g of nylon 66, 65g of ethylene-methyl methacrylate glycidyl ester copolymer, 200g of modified glass fiber, 45g of polytetrafluoroethylene powder, 4.5g of antioxidant 1010, and 2g of sodium hypophosphite, and then adding them into a double screw extruder, and then extruding them under the condition of a temperature of 295℃ to coat the outside of the core wound with the modified carbon fiber to obtain the new energy automobile data connection wire harness.

[0052] Comparative Example 1

[0053] The difference between the present comparative example and Example 1 is that the oxidized carbon fiber is not functionally modified, and the rest of the conditions and preparation steps remain unchanged.

[0054] A preparation method of a new energy automobile data connection wire harness, comprising the following steps:

[0055] First step: removing the sizing agent on the surface of the carbon fiber using a Soxhlet extractor, the extraction solvent is acetone, the extraction temperature is 40℃, the extraction time is 24h, after the extraction is completed, the carbon fiber is taken out and washed with anhydrous ethanol and deionized water in sequence, and then dried, and then 80g of the extracted and dried carbon fiber, 5g of silver nitrate, 80g of potassium persulfate, and 2000g of deionized water are mixed in a reaction bottle provided with a condenser, a thermometer, and a magnetic stirring rotor, the magnetic stirring is started, and then stirred at a temperature of 70℃ for 4h, after the reaction is completed, the solid is filtered out and washed with anhydrous ethanol and deionized water in sequence, and then dried to obtain the oxidized carbon fiber.

[0056] Second step: immersing the oxidized carbon fiber in a 0.1g / L palladium chloride solution for 2min, and then adding it into a flume, each liter of the plating solution in the flume contains 25g of nickel sulfate, 12g of dimethylamine borane, 40g of sodium citrate, and the rest is 3% ammonia water, and the plating solution is preheated to 70℃, the nickel plating time is 60min, after the nickel plating is completed, the oxidized carbon fiber is taken out and washed with deionized water, and then dried, and then heated to 200℃ under the condition of nitrogen protection and kept for 120min to obtain the modified carbon fiber.

[0057] Third step: mixing 150g of glass fiber, 15g of silane coupling agent kh-560, and 1000g of toluene in a reaction bottle provided with a condenser, a thermometer, and a magnetic stirring rotor, starting the magnetic stirring, and then reacting at a temperature of 60℃ for 12h, after the reaction is completed, the glass fiber is filtered out and washed with anhydrous ethanol and deionized water in sequence, and then dried to obtain the modified glass fiber.

[0058] Fourth step: the modified carbon fiber is wrapped around the core, and 500g of polyphenylene sulfide, 100g of nylon 66, 50g of ethylene-methyl methacrylate glycidyl ester copolymer, 150g of modified glass fiber, 30g of polytetrafluoroethylene powder, 2g of antioxidant 1010, and 1g of antioxidant 168 are mixed and then added to a double screw extruder, and then coated outside the wire core wrapped with modified carbon fiber under the condition of temperature 300℃ to obtain a new energy automobile data connection wire harness.

[0059] Experimental example 1

[0060] The new energy automobile data connection wire harnesses in examples 1-3 and comparative example 1 are respectively subjected to shielding performance test, vibration durability test, and secondary reflection test, and the test results are shown in Table 1:

[0061] The electromagnetic shielding performance test and the vibration durability test are carried out according to the national standard GB / T 37133-2018 "Technical requirements for high-voltage and high-current wire harness and connector for electric vehicles".

[0062] The secondary reflection test is carried out according to the national standard GB / T 30139-2013 "General technical conditions for electromagnetic shielding fabrics for industrial use: shielding effectiveness sub-item test" to test the absorption ratio of the modified carbon fiber.

[0063] Table 1

[0064]

[0065] As can be seen from Table 1, the modified carbon fiber in examples 1-3 significantly improves the coverage and density of the nickel plating layer after functional modification, and has better bonding ability between the nickel plating layer and the carbon fiber, thereby having better shielding effectiveness and less vibration damage, and the aromatic ring grafting layer grafted between the nickel plating layer and the carbon fiber effectively improves the absorption of electromagnetic waves by the modified carbon fiber, and reduces secondary electromagnetic wave reflection pollution.

[0066] The above examples are only used to help understand the method of the present application and its core idea. Various modifications to these examples will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these examples shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A preparation method of a new energy vehicle data connection wire harness, characterized in that, The method comprises the following steps: The carbon fiber is removed from the sizing agent on the surface and oxidized to obtain oxidized carbon fiber, then the silane coupling agent is grafted on the surface of the oxidized carbon fiber, and then the functionalized carbon fiber is obtained by reacting with 4, 4'-diamino diphenyl sulfide, and then the modified carbon fiber is obtained by plating nickel on the surface of the functionalized carbon fiber and then heat treatment, the modified carbon fiber is wrapped around the core, and the polyphenylene sulfide-based composite material is melt-extruded to coat the outside of the core wrapped with the modified carbon fiber to obtain the new energy automobile data connection harness. The carbon fiber is functionalized, the amino and sulfide structures with good coordination ability are grafted on the surface of the functionalized carbon fiber, and the binding ability of the functionalized carbon fiber and the plating layer is enhanced. The aromatic ring structure is grafted on the surface of the modified carbon fiber, the heterojunction is formed between the modified carbon fiber and the aromatic ring grafting layer, and between the aromatic ring molecules, and the polar groups in the aromatic ring grafting layer structure induce dipole orientation polarization relaxation under the action of the electromagnetic field.

2. The preparation method of the new energy vehicle data connection wire harness according to claim 1, characterized in that, The preparation steps of the oxidized carbon fiber are as follows: The sizing agent on the surface of the carbon fiber is removed, the extraction solvent is acetone, the extraction temperature is 40-60 DEG C, the extraction time is 12-24 h, then the extracted carbon fiber, silver nitrate, potassium persulfate and deionized water are mixed to react at a temperature of 70-80 DEG C to obtain the oxidized carbon fiber.

3. The preparation method of the new energy vehicle data connection wire harness according to claim 1, characterized in that, The preparation steps of the functionalized carbon fiber are as follows: The oxidized carbon fiber, silane coupling agent kh-560 and toluene are mixed and reacted at a temperature of 60-100 DEG C, then the reacted oxidized carbon fiber, 4, 4'-diamino diphenyl sulfide and toluene are mixed and reacted at a temperature of 30-60 DEG C to obtain the functionalized carbon fiber.

4. The preparation method of the new energy vehicle data connection wire harness according to claim 1, characterized in that, The preparation steps of the modified carbon fiber are as follows: The functionalized carbon fiber is soaked in a palladium chloride solution, then nickel is plated in a plating solution containing a nickel source, a reducing agent, a complexing agent and ammonia water, the plating solution is preheated, the functionalized carbon fiber is taken out after the nickel plating is completed, and heat treatment is carried out under nitrogen protection to obtain the modified carbon fiber.

5. The preparation method of the new energy vehicle data connection wire harness according to claim 1, characterized in that, The preparation steps of the new energy automobile data connection harness are as follows: The modified carbon fiber is wrapped around the core, and the polyphenylene sulfide, nylon 66, the compatibilizer, the modified glass fiber, the polytetrafluoroethylene powder and the antioxidant are mixed and melt-extruded to coat the outside of the core wrapped with the modified carbon fiber to obtain the new energy automobile data connection harness.

6. The preparation method of the new energy vehicle data connection wire harness according to claim 4, characterized in that, The nickel source is nickel sulfate, the reducing agent is at least one of dimethylamine borane and sodium hypophosphite, and the complexing agent is at least one of sodium citrate and sodium malate.

7. The preparation method of the new energy vehicle data connection wire harness according to claim 5, characterized in that, The preparation steps of the modified glass fiber are as follows: The glass fiber, silane coupling agent kh-560 and toluene are mixed and reacted at a temperature of 60-100 DEG C to obtain the modified glass fiber.

8. The preparation method of the new energy vehicle data connection wire harness according to claim 5, characterized in that, The antioxidant is at least one of antioxidant 1010, antioxidant 1035, sodium hypophosphite and antioxidant 168.

9. The preparation method of the new energy vehicle data connection wire harness according to claim 5, characterized in that, The compatibilizer is ethylene-glycidyl methacrylate copolymer.

10. The preparation method of the new energy vehicle data connection wire harness according to claim 5, characterized in that, The temperature condition of the melt-extrusion is 290-300 DEG C.

Images