A manufacturing process for aluminum alloy cables

Abstract

This invention relates to the field of cables, specifically to a manufacturing process for aluminum alloy cables. This process solves the problems of poor waterproof and corrosion-resistant performance of existing aluminum alloy cables, which are prone to rusting, corrosion, and breakage, thus affecting the stability and safety of the cables. The new manufacturing process involves spraying a high-performance coating onto the cable sheath surface. Because the high-performance coating contains long-chain modified boron nitride and polyfluoroperylene ring compounds, it forms a coating with excellent water resistance and corrosion resistance after curing. This results in good waterproofing and effective resistance to various corrosive media, significantly improving the water resistance and corrosion resistance of the aluminum alloy cable. This effectively prevents performance degradation and damage in humid environments, ensuring the stability and safety of the aluminum alloy cable in various environments.

Description

Technical Field

[0001] This invention relates to the field of cables, and more specifically to a manufacturing process for aluminum alloy cables. Background Technology

[0002] In modern electrical engineering and construction, cables are crucial components for power transmission. Traditional cables often use copper as the conductive material, favored for its excellent conductivity and corrosion resistance. However, copper's relatively high price limits its use in projects with strict cost controls. In contrast, aluminum alloys offer a more economical option due to their lower cost. However, aluminum alloy cables exhibit poor water and corrosion resistance, particularly in humid or highly corrosive environments, making them prone to rusting, corrosion, and breakage, thus affecting their stability and safety.

[0003] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0004] In order to overcome the above-mentioned technical problems, the purpose of this invention is to provide an aluminum alloy cable manufacturing process that solves the problems of poor waterproof and corrosion-resistant performance of existing aluminum alloy cables, which are prone to rusting, corrosion and breakage, thereby affecting the stability and safety of the cables.

[0005] The objective of this invention can be achieved through the following technical solutions: In a first aspect, this application provides a manufacturing process for aluminum alloy cables, comprising the following steps: Step 1: Weigh out 30-35 parts by weight of epoxy resin, 3-15 parts by weight of long-chain modified boron nitride, 0.9-3.5 parts by weight of polyfluoroperylene ring compound, 23-25 ​​parts by weight of ethylene glycol butyl ether, 0.3-0.5 parts by weight of dispersant, 0.1-0.5 parts by weight of leveling agent, 0.2-0.4 parts by weight of defoamer, 56-60 parts by weight of curing agent, and 15-20 parts by weight of propylene glycol methyl ether, and set aside. Step 2: Add epoxy resin, long-chain modified boron nitride, polyfluoroperylene ring compound, ethylene glycol butyl ether, dispersant, leveling agent and defoamer to a mixer, and stir for 20-30 minutes at a temperature of 20-25℃ and a stirring speed of 2000-3000r / min to obtain component 1; Step 3: Add the curing agent and propylene glycol methyl ether to the mixer and stir for 10-20 minutes at a temperature of 20-25℃ and a stirring speed of 800-1000 r / min to obtain component 2; Step 4: Add component 1 and component 2 to the mixer and stir for 10-20 minutes at a temperature of 20-25℃ and a stirring rate of 1000-2000 r / min to obtain a high-performance coating. Step 5: Spray high-performance coating onto the surface of the cable sheath, with a wet film thickness of 50μm, and then dry it at a temperature of 40-50℃ for 3-5 hours to obtain an aluminum alloy cable.

[0006] In a preferred embodiment of the present invention, the epoxy resin is CYDW-100.

[0007] In a preferred embodiment of the present invention, the dispersant is FA-196 wetting and dispersing agent.

[0008] In a preferred embodiment of the present invention, the leveling agent is BY-333 leveling agent.

[0009] In a preferred embodiment of the present invention, the defoamer is Tego Foamex 825.

[0010] In a preferred embodiment of the present invention, the curing agent is ED-600 polyetheramine.

[0011] In a preferred embodiment of the present invention, the long-chain modified boron nitride is prepared by the following steps: Step a1: Add boron nitride, deionized water, and anhydrous ethanol to a three-necked flask equipped with a stirrer and thermometer. Stir the reaction at 20-25℃ and 200-300 r / min for 10-20 min. Then add silane coupling agent KH-560 and continue stirring for 10-20 min. Adjust the pH to 8-9 with ammonia water. Then raise the temperature to 50-60℃ and continue stirring for 6-8 h. After the reaction is complete, cool the reaction product to room temperature, centrifuge, wash the precipitate 2-3 times with distilled water, and then place it in a vacuum drying oven and dry at 60-70℃ for 2-3 h to obtain epoxy-modified boron nitride. Step a2: Add epoxy-modified boron nitride, octadecylamine, and anhydrous ethanol to a three-necked flask equipped with a stirrer and thermometer. Stir the reaction at 20-25℃ and 200-300 r / min for 10-20 min. Then, raise the temperature to 60-70℃ and continue stirring for 3-5 h. After the reaction is complete, cool the reaction product to room temperature, centrifuge, wash the precipitate 2-3 times with ethanol solution, and then place it in a vacuum drying oven and dry it at 60-70℃ for 2-3 h to obtain long-chain modified boron nitride.

[0012] In a preferred embodiment of the present invention, the ratio of boron nitride, deionized water, anhydrous ethanol and silane coupling agent KH-560 in step a1 is 5g:10-12mL:70-80mL:1-11g.

[0013] In a preferred embodiment of the present invention, the average particle size of the boron nitride in step a1 is 3 μm; and the mass fraction of the ammonia water is 20-25%.

[0014] In a preferred embodiment of the present invention, the ratio of epoxy-modified boron nitride, octadecylamine and anhydrous ethanol in step a2 is 3g:1-5g:40-50mL.

[0015] In a preferred embodiment of the present invention, the volume fraction of the ethanol solution in step a2 is 50-60%.

[0016] In a preferred embodiment of the present invention, the polyfluoroperylene ring compound is prepared by the following steps: Step b1: Add 3,4,9,10-perylenetetracarboxylic dianhydride, 3,5-dibromoaniline, imidazole, and anhydrous ethanol to a three-necked flask equipped with a stirrer, thermometer, and gas delivery tube. Purge with nitrogen for protection and stir at 20-25°C and 200-300 r / min for 1-2 h. Then raise the temperature to 80-85°C and continue stirring for 5-6 h. Add hydrochloric acid solution and continue stirring for 8-10 h. After the reaction is complete, cool the reaction product to room temperature and centrifuge. Wash the precipitate 2-3 times with sodium carbonate solution and ethanol solution, and then place it in a vacuum drying oven and dry at 70-80°C for 3-5 h to obtain perylene ring bromide. Step b2: Add the perylene bromide compound, octafluoropentanol, potassium carbonate, zinc powder, and dimethyl sulfoxide to a three-necked flask equipped with a stirrer, thermometer, and gas delivery tube. Purge with nitrogen for protection and stir the reaction at 20-25°C and 200-300 r / min for 20-30 min. Then raise the temperature to 110-120°C and continue stirring for 10-15 h. After the reaction is complete, cool the reaction product to room temperature, then filter under vacuum. Pour the filtrate into ice water, centrifuge, and place the precipitate in a vacuum drying oven at 70-80°C for 3-5 h to obtain the perylene bromide compound.

[0017] In a preferred embodiment of the present invention, the ratio of the amounts of 3,4,9,10-perylenetetracarboxylic dianhydride, 3,5-dibromoaniline, imidazole, anhydrous ethanol and hydrochloric acid solution in step b1 is 10 mmol: 23-25 ​​mmol: 10-15 g: 60-70 mL: 50-60 mL.

[0018] In a preferred embodiment of the present invention, the hydrochloric acid solution in step b1 has a mass fraction of 10-20%; the sodium carbonate solution has a mass fraction of 10-12%; and the ethanol solution has a volume fraction of 50-60%.

[0019] In a preferred embodiment of the present invention, the ratio of the perylene bromide compound, octafluoropentanol, potassium carbonate, zinc powder and dimethyl sulfoxide in step b2 is 10 mmol: 50-60 mmol: 60-70 mmol: 0.5-0.8 g: 100-120 mL.

[0020] Secondly, this application provides The beneficial effects of this invention are: This invention discloses a manufacturing process for aluminum alloy cables. The process involves reacting epoxy resin, long-chain modified boron nitride, polyfluoroperylene ring compounds, ethylene glycol butyl ether, dispersant, leveling agent, and defoamer to obtain component one. A curing agent and propylene glycol methyl ether are then reacted to obtain component two. Components one and two are further reacted to obtain a high-performance coating. This high-performance coating is then sprayed onto the surface of the cable sheath and cured to form a coating layer, resulting in an aluminum alloy cable. This manufacturing process, by spraying the high-performance coating onto the cable sheath surface, utilizes the long-chain modified boron nitride and polyfluoroperylene ring compounds in the coating. This results in a coating layer with excellent water resistance and corrosion resistance after curing, providing good waterproofing and effective resistance to various corrosive media. Therefore, it significantly improves the water resistance and corrosion resistance of the aluminum alloy cable, effectively preventing performance degradation and damage in humid environments and ensuring the stability and safety of the aluminum alloy cable in various environments.

[0021] In the process of preparing aluminum alloy cables, a long-chain modified boron nitride was first prepared. Boron nitride was treated with a silane coupling agent KH-560. The siloxane on the silane coupling agent KH-560 was hydrolyzed to form silanols which were then grafted onto the surface of the boron nitride. Simultaneously, a large number of epoxy groups were introduced, resulting in epoxy-modified boron nitride. The epoxy-modified boron nitride was then reacted with octadecylamine, where the epoxy groups on the epoxy-modified boron nitride reacted with the amino groups on the octadecylamine, introducing a large number of long carbon chains, thus obtaining long-chain modified boron nitride. Boron nitride has a high aspect ratio lamellar structure, which can act as a barrier against corrosive media, exhibiting a "zigzag path effect" that extends the penetration and diffusion path of corrosive media. After modification, the introduction of silicon atoms and long carbon chains further enhances its hydrophobic properties and allows it to be well dispersed in coatings, preventing agglomeration and ensuring the formation of a dense barrier layer. This allows it to fully exert its barrier effect in the coating, significantly improving the water resistance and corrosion resistance of the aluminum alloy cable.

[0022] In the process of preparing aluminum alloy cables, a polyfluoroperylene ring compound was also prepared. This was achieved through a reaction between 3,4,9,10-perylenetetracarboxylic dianhydride and 3,5-dibromoaniline. The anhydride on the 3,4,9,10-perylenetetracarboxylic dianhydride reacts with the amino group on the 3,5-dibromoaniline, undergoing an imidization reaction and introducing a large number of bromine atoms, resulting in a perylene ring bromide compound. This perylene ring compound then reacts with octafluoropentanol, with the bromine atoms on the perylene ring compound reacting with the hydroxyl groups on the octafluoropentanol, introducing a large number of fluorine atoms, thus yielding the polyfluoroperylene ring compound. This polyfluoroperylene ring compound contains a large number of fluorine atoms, giving it extremely strong hydrophobicity and chemical inertness. It accumulates on the coating surface and significantly reduces the surface energy of the coating, greatly increasing the water contact angle, making it difficult for water droplets to wet and spread, preventing the penetration of corrosive media, and significantly improving the water resistance and corrosion resistance of the aluminum alloy cable. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1: This embodiment describes a manufacturing process for aluminum alloy cables, including the following steps: Step S1: Add 5g of boron nitride with an average particle size of 3μm, 10mL of deionized water and 70mL of anhydrous ethanol to a three-necked flask equipped with a stirrer and thermometer. Stir the reaction at 20℃ and 200r / min for 10min. Then add 1g of silane coupling agent KH-560 and continue stirring for 10min. Adjust the pH to 8 with 20% ammonia water. Then raise the temperature to 50℃ and continue stirring for 6h. After the reaction is completed, cool the reaction product to room temperature, centrifuge, wash the precipitate twice with distilled water, and then place it in a vacuum drying oven and dry it at 60℃ for 2h to obtain epoxy modified boron nitride. Step S2: Add 3g of epoxy-modified boron nitride, 1g of octadecylamine and 40mL of anhydrous ethanol to a three-necked flask equipped with a stirrer and thermometer. Stir the reaction at 20℃ and 200r / min for 10min. Then, raise the temperature to 60℃ and continue stirring for 3h. After the reaction is completed, cool the reaction product to room temperature, then centrifuge. Wash the precipitate twice with 50% ethanol solution and then place it in a vacuum drying oven and dry it at 60℃ for 2h to obtain long-chain modified boron nitride. Step S3: 10 mmol of 3,4,9,10-perylenetetracarboxylic dianhydride, 23 mmol of 3,5-dibromoaniline, 10 g of imidazole, and 60 mL of anhydrous ethanol were added to a three-necked flask equipped with a stirrer, thermometer, and gas delivery tube. Nitrogen gas was introduced for protection, and the mixture was stirred at 20 °C and 200 r / min for 1 h. The temperature was then raised to 80 °C and the mixture was stirred for another 5 h. 50 mL of 10% hydrochloric acid solution was added and the mixture was stirred for another 8 h. After the reaction was completed, the product was cooled to room temperature and centrifuged. The precipitate was washed twice, once with 10% sodium carbonate solution and once with 50% ethanol solution. The precipitate was then placed in a vacuum drying oven and dried at 70 °C for 3 h to obtain the perylene ring bromide compound. Step S4: 10 mmol of perylene bromide compound, 50 mmol of octafluoropentanol, 60 mmol of potassium carbonate, 0.5 g of zinc powder and 100 mL of dimethyl sulfoxide were added to a three-necked flask equipped with a stirrer, thermometer and gas delivery tube. Nitrogen gas was introduced for protection. The mixture was stirred at 20 °C and 200 r / min for 20 min. Then the temperature was raised to 110 °C and the mixture was stirred for 10 h. After the reaction was completed, the reaction product was cooled to room temperature and then vacuum filtered. The filtrate was poured into ice water and centrifuged. The precipitate was placed in a vacuum drying oven and dried at 70 °C for 3 h to obtain the perylene bromide compound. Step S5: Weigh out 30 parts by weight of epoxy resin, 3 parts by weight of long-chain modified boron nitride, 0.9 parts by weight of polyfluoroperylene ring compound, 23 parts by weight of ethylene glycol butyl ether, 0.3 parts by weight of dispersant, 0.1 parts by weight of leveling agent, 0.2 parts by weight of defoamer, 56 parts by weight of curing agent, and 15 parts by weight of propylene glycol methyl ether, and set aside; the epoxy resin is CYDW-100; the dispersant is FA-196 wetting and dispersing agent; the leveling agent is BY-333 leveling agent; the defoamer is Tego Foamex 825; and the curing agent is ED-600 polyether amine; Step S6: Add epoxy resin, long-chain modified boron nitride, polyfluoroperylene ring compound, ethylene glycol butyl ether, dispersant, leveling agent and defoamer to a mixer, and stir for 20 min at a temperature of 20℃ and a stirring speed of 2000 r / min to obtain component one; Step S7: Add the curing agent and propylene glycol methyl ether to the mixer and stir for 10 minutes at a temperature of 20°C and a stirring rate of 800 r / min to obtain component two; Step S8: Add component one and component two to the mixer and stir for 10 minutes at a temperature of 20℃ and a stirring rate of 1000r / min to obtain a high-performance coating. Step S9: Spray high-performance coating onto the surface of the cable sheath, with a wet film thickness of 50 μm, and then dry it at a temperature of 40°C for 3 hours to obtain an aluminum alloy cable.

[0025] Example 2: This embodiment describes a manufacturing process for aluminum alloy cables, including the following steps: Step S1: Add 5g of boron nitride with an average particle size of 3μm, 11mL of deionized water and 75mL of anhydrous ethanol to a three-necked flask equipped with a stirrer and thermometer. Stir the reaction at 22℃ and 250r / min for 15min. Then add 6g of silane coupling agent KH-560 and continue stirring for 15min. Adjust the pH to 8.5 with 22% ammonia water. Then raise the temperature to 55℃ and continue stirring for 7h. After the reaction is completed, cool the reaction product to room temperature, centrifuge, wash the precipitate twice with distilled water, and then place it in a vacuum drying oven and dry at 65℃ for 2.5h to obtain epoxy modified boron nitride. Step S2: Add 3g of epoxy-modified boron nitride, 3g of octadecylamine and 45mL of anhydrous ethanol to a three-necked flask equipped with a stirrer and thermometer. Stir the reaction at 22℃ and 250r / min for 15min. Then, raise the temperature to 65℃ and continue stirring for 4h. After the reaction is completed, cool the reaction product to room temperature, centrifuge it, wash the precipitate twice with 55% ethanol solution, and then place it in a vacuum drying oven and dry it at 65℃ for 2.5h to obtain long-chain modified boron nitride. Step S3: 10 mmol of 3,4,9,10-perylenetetracarboxylic dianhydride, 24 mmol of 3,5-dibromoaniline, 12 g of imidazole, and 65 mL of anhydrous ethanol were added to a three-necked flask equipped with a stirrer, thermometer, and gas delivery tube. Nitrogen gas was introduced for protection, and the mixture was stirred at 22 °C and 250 r / min for 1.5 h. The temperature was then raised to 82 °C and the mixture was stirred for another 5.5 h. 55 mL of 15% hydrochloric acid solution was added and the mixture was stirred for another 9 h. After the reaction was completed, the product was cooled to room temperature and centrifuged. The precipitate was washed twice, once with 11% sodium carbonate solution and once with 55% ethanol solution. The precipitate was then placed in a vacuum drying oven and dried at 75 °C for 4 h to obtain the perylene ring bromide compound. Step S4: 10 mmol of perylene bromide compound, 55 mmol of octafluoropentanol, 65 mmol of potassium carbonate, 0.7 g of zinc powder and 110 mL of dimethyl sulfoxide were added to a three-necked flask equipped with a stirrer, thermometer and gas delivery tube. Nitrogen gas was introduced for protection. The mixture was stirred at 22 °C and 250 r / min for 25 min. Then the temperature was raised to 115 °C and the mixture was stirred for 12 h. After the reaction was completed, the reaction product was cooled to room temperature and then filtered under vacuum. The filtrate was poured into ice water and centrifuged. The precipitate was placed in a vacuum drying oven and dried at 75 °C for 4 h to obtain the perylene bromide compound. Step S5: Weigh out 32 parts by weight of epoxy resin, 9 parts by weight of long-chain modified boron nitride, 2.2 parts by weight of polyfluoroperylene ring compound, 24 parts by weight of ethylene glycol butyl ether, 0.4 parts by weight of dispersant, 0.3 parts by weight of leveling agent, 0.3 parts by weight of defoamer, 58 parts by weight of curing agent, and 18 parts by weight of propylene glycol methyl ether, and set aside; the epoxy resin is CYDW-100; the dispersant is FA-196 wetting and dispersing agent; the leveling agent is BY-333 leveling agent; the defoamer is Tego Foamex 825; and the curing agent is ED-600 polyether amine; Step S6: Add epoxy resin, long-chain modified boron nitride, polyfluoroperylene ring compound, ethylene glycol butyl ether, dispersant, leveling agent and defoamer to a mixer, and stir for 25 min at a temperature of 22℃ and a stirring speed of 2500 r / min to obtain component one; Step S7: Add the curing agent and propylene glycol methyl ether to the mixer and stir for 15 minutes at a temperature of 22°C and a stirring rate of 900 r / min to obtain component two; Step S8: Add component one and component two to the mixer and stir for 15 minutes at a temperature of 22℃ and a stirring rate of 1500r / min to obtain a high-performance coating. Step S9: Spray high-performance coating onto the surface of the cable sheath, with a wet film thickness of 50 μm, and then dry it at a temperature of 45°C for 4 hours to obtain an aluminum alloy cable.

[0026] Example 3: This embodiment describes a manufacturing process for aluminum alloy cables, including the following steps: Step S1: Add 5g of boron nitride with an average particle size of 3μm, 12mL of deionized water and 80mL of anhydrous ethanol to a three-necked flask equipped with a stirrer and thermometer. Stir the reaction at 25℃ and 300r / min for 20min. Then add 11g of silane coupling agent KH-560 and continue stirring for 20min. Adjust the pH to 9 with 25% ammonia water. Then raise the temperature to 60℃ and continue stirring for 8h. After the reaction is completed, cool the reaction product to room temperature, centrifuge, wash the precipitate three times with distilled water, and then place it in a vacuum drying oven and dry it at 70℃ for 3h to obtain epoxy modified boron nitride. Step S2: Add 3g of epoxy-modified boron nitride, 5g of octadecylamine and 50mL of anhydrous ethanol to a three-necked flask equipped with a stirrer and thermometer. Stir the reaction at 25℃ and 300r / min for 20min. Then, raise the temperature to 70℃ and continue stirring for 5h. After the reaction is completed, cool the reaction product to room temperature, centrifuge it, wash the precipitate three times with 60% ethanol solution, and then place it in a vacuum drying oven and dry it at 70℃ for 3h to obtain long-chain modified boron nitride. Step S3: 10 mmol of 3,4,9,10-perylenetetracarboxylic dianhydride, 25 mmol of 3,5-dibromoaniline, 15 g of imidazole, and 70 mL of anhydrous ethanol were added to a three-necked flask equipped with a stirrer, thermometer, and gas delivery tube. Nitrogen gas was introduced for protection, and the mixture was stirred at 25 °C and a stirring rate of 300 r / min for 2 h. The temperature was then raised to 85 °C and the mixture was stirred for another 6 h. 60 mL of 20% hydrochloric acid solution was added and the mixture was stirred for another 10 h. After the reaction was completed, the reaction product was cooled to room temperature and then centrifuged. The precipitate was washed three times with 12% sodium carbonate solution and 60% ethanol solution, respectively. The precipitate was then placed in a vacuum drying oven and dried at 80 °C for 5 h to obtain the perylene ring bromide compound. Step S4: 10 mmol of perylene bromide compound, 60 mmol of octafluoropentanol, 70 mmol of potassium carbonate, 0.8 g of zinc powder, and 120 mL of dimethyl sulfoxide were added to a three-necked flask equipped with a stirrer, thermometer, and gas delivery tube. Nitrogen gas was introduced for protection, and the mixture was stirred at 25 °C and a stirring rate of 300 r / min for 30 min. Then, the temperature was raised to 120 °C and the mixture was stirred for another 15 h. After the reaction was completed, the reaction product was cooled to room temperature, then vacuum filtered, and the filtrate was poured into ice water and centrifuged. The precipitate was placed in a vacuum drying oven and dried at 80 °C for 5 h to obtain the perylene bromide compound. Step S5: Weigh out 35 parts by weight of epoxy resin, 15 parts by weight of long-chain modified boron nitride, 3.5 parts by weight of polyfluoroperylene ring compound, 25 parts by weight of ethylene glycol butyl ether, 0.5 parts by weight of dispersant, 0.5 parts by weight of leveling agent, 0.4 parts by weight of defoamer, 60 parts by weight of curing agent, and 20 parts by weight of propylene glycol methyl ether, and set aside; the epoxy resin is CYDW-100; the dispersant is FA-196 wetting and dispersing agent; the leveling agent is BY-333 leveling agent; the defoamer is Tego Foamex 825; and the curing agent is ED-600 polyether amine; Step S6: Add epoxy resin, long-chain modified boron nitride, polyfluoroperylene ring compound, ethylene glycol butyl ether, dispersant, leveling agent and defoamer to a mixer, and stir for 30 min at a temperature of 25℃ and a stirring speed of 3000 r / min to obtain component one; Step S7: Add the curing agent and propylene glycol methyl ether to the mixer and stir for 20 minutes at a temperature of 25°C and a stirring rate of 1000 r / min to obtain component two; Step S8: Add component one and component two to the mixer and stir for 20 minutes at a temperature of 25°C and a stirring rate of 2000 r / min to obtain a high-performance coating. Step S9: Spray high-performance coating onto the surface of the cable sheath, with a wet film thickness of 50 μm, and then dry it at 50°C for 5 hours to obtain an aluminum alloy cable.

[0027] Comparative Example 1: This comparative example is an aluminum alloy cable that has not been treated.

[0028] Comparative Example 2: This comparative example illustrates a manufacturing process for an aluminum alloy cable, including the following steps: Step S1: Weigh out 35 parts by weight of epoxy resin, 25 parts by weight of ethylene glycol butyl ether, 0.5 parts by weight of dispersant, 0.5 parts by weight of leveling agent, 0.4 parts by weight of defoamer, 60 parts by weight of curing agent, and 20 parts by weight of propylene glycol methyl ether, and set aside; the epoxy resin is CYDW-100; the dispersant is FA-196 wetting and dispersing agent; the leveling agent is BY-333 leveling agent; the defoamer is Tego Foamex825; and the curing agent is ED-600 polyether amine; Step S2: Add epoxy resin, ethylene glycol butyl ether, dispersant, leveling agent and defoamer to a mixer, and stir for 30 minutes at a temperature of 25℃ and a stirring speed of 3000r / min to obtain component one; Step S3: Add the curing agent and propylene glycol methyl ether to the mixer and stir for 20 minutes at a temperature of 25°C and a stirring rate of 1000 r / min to obtain component two; Step S4: Add component one and component two to the mixer and stir for 20 minutes at a temperature of 25°C and a stirring rate of 2000 r / min to obtain a high-performance coating. Step S5: Spray high-performance coating onto the surface of the cable sheath, with a wet film thickness of 50 μm, and then dry it at 50°C for 5 hours to obtain an aluminum alloy cable.

[0029] Comparative Example 3: This comparative example illustrates a manufacturing process for an aluminum alloy cable, including the following steps: Step S1: Add 5g of boron nitride with an average particle size of 3μm, 12mL of deionized water and 80mL of anhydrous ethanol to a three-necked flask equipped with a stirrer and thermometer. Stir the reaction at 25℃ and 300r / min for 20min. Then add 11g of silane coupling agent KH-560 and continue stirring for 20min. Adjust the pH to 9 with 25% ammonia water. Then raise the temperature to 60℃ and continue stirring for 8h. After the reaction is completed, cool the reaction product to room temperature, centrifuge, wash the precipitate three times with distilled water, and then place it in a vacuum drying oven and dry it at 70℃ for 3h to obtain epoxy modified boron nitride. Step S2: Add 3g of epoxy-modified boron nitride, 5g of octadecylamine and 50mL of anhydrous ethanol to a three-necked flask equipped with a stirrer and thermometer. Stir the reaction at 25℃ and 300r / min for 20min. Then, raise the temperature to 70℃ and continue stirring for 5h. After the reaction is completed, cool the reaction product to room temperature, centrifuge it, wash the precipitate three times with 60% ethanol solution, and then place it in a vacuum drying oven and dry it at 70℃ for 3h to obtain long-chain modified boron nitride. Step S3: Weigh out 35 parts by weight of epoxy resin, 15 parts by weight of long-chain modified boron nitride, 25 parts by weight of ethylene glycol butyl ether, 0.5 parts by weight of dispersant, 0.5 parts by weight of leveling agent, 0.4 parts by weight of defoamer, 60 parts by weight of curing agent, and 20 parts by weight of propylene glycol methyl ether, and set aside. The epoxy resin is CYDW-100; the dispersant is FA-196 wetting and dispersing agent; the leveling agent is BY-333 leveling agent; the defoamer is Tego Foamex 825; and the curing agent is ED-600 polyether amine. Step S4: Add epoxy resin, long-chain modified boron nitride, ethylene glycol butyl ether, dispersant, leveling agent and defoamer to a mixer, and stir for 30 minutes at a temperature of 25℃ and a stirring speed of 3000r / min to obtain component one; Step S5: Add the curing agent and propylene glycol methyl ether to the mixer and stir for 20 minutes at a temperature of 25°C and a stirring rate of 1000 r / min to obtain component two; Step S6: Add component one and component two to the mixer and stir for 20 minutes at a temperature of 25℃ and a stirring rate of 2000 r / min to obtain a high-performance coating; Step S7: Spray high-performance coating onto the surface of the cable sheath, with a wet film thickness of 50 μm, and then dry it at 50°C for 5 hours to obtain an aluminum alloy cable.

[0030] Comparative Example 4: This comparative example illustrates a manufacturing process for an aluminum alloy cable, including the following steps: Step S1: 10 mmol of 3,4,9,10-perylenetetracarboxylic dianhydride, 25 mmol of 3,5-dibromoaniline, 15 g of imidazole, and 70 mL of anhydrous ethanol were added to a three-necked flask equipped with a stirrer, thermometer, and gas delivery tube. Nitrogen gas was introduced for protection, and the mixture was stirred at 25 °C and 300 r / min for 2 h. The temperature was then raised to 85 °C and the mixture was stirred for another 6 h. 60 mL of 20% hydrochloric acid solution was added and the mixture was stirred for another 10 h. After the reaction was completed, the product was cooled to room temperature and centrifuged. The precipitate was washed three times with 12% sodium carbonate solution and 60% ethanol solution, respectively. The precipitate was then placed in a vacuum drying oven and dried at 80 °C for 5 h to obtain the perylene ring bromide compound. Step S2: 10 mmol of perylene bromide compound, 60 mmol of octafluoropentanol, 70 mmol of potassium carbonate, 0.8 g of zinc powder and 120 mL of dimethyl sulfoxide were added to a three-necked flask equipped with a stirrer, thermometer and gas delivery tube. Nitrogen gas was introduced for protection. The mixture was stirred at 25 °C and 300 r / min for 30 min. Then the temperature was raised to 120 °C and the mixture was stirred for 15 h. After the reaction was completed, the reaction product was cooled to room temperature and then vacuum filtered. The filtrate was poured into ice water and centrifuged. The precipitate was placed in a vacuum drying oven and dried at 80 °C for 5 h to obtain the perylene bromide compound. Step S3: Weigh out 35 parts by weight of epoxy resin, 3.5 parts by weight of polyfluoroperylene ring compound, 25 parts by weight of ethylene glycol butyl ether, 0.5 parts by weight of dispersant, 0.5 parts by weight of leveling agent, 0.4 parts by weight of defoamer, 60 parts by weight of curing agent, and 20 parts by weight of propylene glycol methyl ether, and set aside; the epoxy resin is CYDW-100; the dispersant is FA-196 wetting and dispersing agent; the leveling agent is BY-333 leveling agent; the defoamer is Tego Foamex 825; and the curing agent is ED-600 polyether amine; Step S4: Add epoxy resin, polyfluoroperylene ring compound, ethylene glycol butyl ether, dispersant, leveling agent and defoamer to a mixer, and stir for 30 min at a temperature of 25℃ and a stirring speed of 3000 r / min to obtain component one; Step S5: Add the curing agent and propylene glycol methyl ether to the mixer and stir for 20 minutes at a temperature of 25°C and a stirring rate of 1000 r / min to obtain component two; Step S6: Add component one and component two to the mixer and stir for 20 minutes at a temperature of 25℃ and a stirring rate of 2000 r / min to obtain a high-performance coating; Step S7: Spray high-performance coating onto the surface of the cable sheath, with a wet film thickness of 50 μm, and then dry it at 50°C for 5 hours to obtain an aluminum alloy cable.

[0031] In Examples 1-3 and Comparative Examples 1-4, Jinda Cable YJLHV22 black low-voltage cable was selected as the base sample and processed to obtain aluminum alloy cable.

[0032] The aluminum alloy cables from Examples 1-3 and Comparative Examples 1-4 were subjected to performance tests, and the test results are shown in the table below:

[0033] Referring to the data in the table above, and based on the comparison between Examples 1-3 and Comparative Examples 1-4, it can be seen that the addition of long-chain modified boron nitride and polyfluoroperylene ring compounds can significantly improve the hydrophobicity of the aluminum alloy cable surface, indicating that its waterproof and corrosion-resistant performance is greatly improved.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above 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 one or more embodiments or examples.

[0035] The above description is merely an example and illustration of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the invention or exceed the scope defined in this application, they should all fall within the protection scope of the present invention.

Claims

1. A manufacturing process for aluminum alloy cables, characterized in that, Includes the following steps: Step 1: Weigh out 30-35 parts by weight of epoxy resin, 3-15 parts by weight of long-chain modified boron nitride, 0.9-3.5 parts by weight of polyfluoroperylene ring compound, 23-25 ​​parts by weight of ethylene glycol butyl ether, 0.3-0.5 parts by weight of dispersant, 0.1-0.5 parts by weight of leveling agent, 0.2-0.4 parts by weight of defoamer, 56-60 parts by weight of curing agent, and 15-20 parts by weight of propylene glycol methyl ether, and set aside. Step 2: Add epoxy resin, long-chain modified boron nitride, polyfluoroperylene ring compound, ethylene glycol butyl ether, dispersant, leveling agent and defoamer to a mixer, and stir for 20-30 minutes at a temperature of 20-25℃ and a stirring speed of 2000-3000r / min to obtain component 1; Step 3: Add the curing agent and propylene glycol methyl ether to the mixer and stir for 10-20 minutes at a temperature of 20-25℃ and a stirring speed of 800-1000 r / min to obtain component 2; Step 4: Add component 1 and component 2 to the mixer and stir for 10-20 minutes at a temperature of 20-25℃ and a stirring rate of 1000-2000 r / min to obtain a high-performance coating. Step 5: Spray high-performance coating onto the surface of the cable sheath, with a wet film thickness of 50μm, and then dry it at a temperature of 40-50℃ for 3-5 hours to obtain an aluminum alloy cable.

2. The aluminum alloy cable manufacturing process according to claim 1, characterized in that, The epoxy resin is CYDW-100; The dispersant is FA-196 wetting and dispersing agent; The leveling agent is BY-333 leveling agent; The defoamer is Tego Foamex 825; The curing agent is ED-600 polyetheramine.

3. The aluminum alloy cable manufacturing process according to claim 1, characterized in that, The long-chain modified boron nitride is prepared by the following steps: Step a1: Boron nitride, deionized water and anhydrous ethanol were stirred and reacted. Then, silane coupling agent KH-560 was added and the reaction was stirred again. Then, the pH was adjusted with ammonia water and the reaction was stirred again. After the reaction was completed, the reaction product was cooled, centrifuged, and the precipitate was washed and dried to obtain epoxy modified boron nitride. Step a2: Epoxy-modified boron nitride, octadecylamine and anhydrous ethanol are stirred and reacted. After the reaction is completed, the reaction product is cooled, centrifuged, and the precipitate is washed and dried to obtain long-chain modified boron nitride.

4. The aluminum alloy cable manufacturing process according to claim 3, characterized in that, The ratio of boron nitride, deionized water, anhydrous ethanol and silane coupling agent KH-560 in step a1 is 5g: 10-12mL: 70-80mL: 1-11g.

5. The aluminum alloy cable manufacturing process according to claim 3, characterized in that, The average particle size of the boron nitride in step a1 is 3 μm; the mass fraction of the ammonia water is 20-25%.

6. The aluminum alloy cable manufacturing process according to claim 3, characterized in that, The ratio of epoxy-modified boron nitride, octadecylamine, and anhydrous ethanol in step a2 is 3g:1-5g:40-50mL.

7. The aluminum alloy cable manufacturing process according to claim 1, characterized in that, The polyfluoroperylene ring compound was prepared by the following steps: Step b1: 3,4,9,10-perylenetetracarboxylic dianhydride, 3,5-dibromoaniline, imidazole and anhydrous ethanol were stirred and reacted. Then hydrochloric acid solution was added and the reaction was continued with stirring. After the reaction was completed, the reaction product was cooled, centrifuged, and the precipitate was washed and dried to obtain perylene ring bromide compound. Step b2: The perylene bromide compound, octafluoropentanol, potassium carbonate, zinc powder and dimethyl sulfoxide were stirred and reacted. After the reaction was completed, the reaction product was cooled, then vacuum filtered, the filtrate was poured into ice water, then centrifuged, and the precipitate was dried to obtain the perylene bromide compound.

8. The aluminum alloy cable manufacturing process according to claim 7, characterized in that, The ratio of the amounts of 3,4,9,10-perylenetetracarboxylic dianhydride, 3,5-dibromoaniline, imidazole, anhydrous ethanol, and hydrochloric acid solution in step b1 is 10 mmol: 23-25 ​​mmol: 10-15 g: 60-70 mL: 50-60 mL.

9. The aluminum alloy cable manufacturing process according to claim 7, characterized in that, The hydrochloric acid solution in step b1 has a mass fraction of 10-20%.

10. The aluminum alloy cable manufacturing process according to claim 7, characterized in that, The ratio of the perylene bromide compound, octafluoropentanol, potassium carbonate, zinc powder, and dimethyl sulfoxide used in step b2 is 10 mmol: 50-60 mmol: 60-70 mmol: 0.5-0.8 g: 100-120 mL.

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