A butterfly cable for protecting against lightning strikes and strong electricity

Abstract

The present invention provides a butterfly cable for lightning protection and strong electricity, and relates to the technical field of butterfly cables. The antistatic agent containing thiadiazolyl phenyl borate molybdenum adopts dithiothiadiazole to carry out thiol-ene addition reaction with allyl glycidyl ether and 3-(2-carboxyvinyl) phenyl borate molybdenum complex respectively; the excess thiol is then subjected to thiol-amino addition reaction with dioctadecylamine to obtain the antistatic agent containing thiadiazolyl phenyl borate molybdenum, which contains thiadiazole, boric acid molybdenum, and glycidyl ether functional groups, and thiadiazole is a five-membered ring containing nitrogen and sulfur atoms, and has excellent electrical conductivity; the formation of boric acid molybdenum complex helps to prevent static electricity accumulation, and finally forms an antistatic agent with special lightning protection and static electricity effect; this antistatic agent has potential application value in the fields of electronic equipment, aerospace, and petrochemical industry.

Description

Technical Field

[0001] The invention relates to the technical field of butterfly cables, in particular to a butterfly cable capable of protecting against lightning strikes and strong electricity. Background Art

[0002] Butterfly optical cable is a new type of user access optical cable. According to different application environments and laying conditions, the optical cable structure and various technical parameters are reasonably designed. It combines the characteristics of indoor soft optical cable and self-supporting optical cable, and is produced using special equipment and imported precision molds. It is the best alternative product for FTTX network solution, and plays a unique role in the establishment of intelligent buildings, digital communities, campus networks, local area networks and other networks.

[0003] CN117369074A: discloses a wear-resistant butterfly cable, including an outer sheath layer, one end of which is respectively provided with a mounting hole and a mounting groove, the number of the mounting holes is two groups, the two groups of mounting holes are arranged on both sides of the mounting groove, the inside of the two groups of mounting holes is plugged with a support, the inside of the mounting groove is provided with an inner sheath layer, the inside of the inner sheath layer is provided with cable cores distributed at equal distances; the circumferential outer wall of the outer sheath layer is coated with a water blocking tape. In the present invention, the first wear-resistant sheet and multiple groups of second wear-resistant sheets are distributed in a stacked manner on the top of the wear-resistant sleeve, so that a structure imitating snake scales can be realized, thereby improving the wear resistance of the entire wear-resistant sleeve, so that the butterfly cable will not be excessively worn during the subsequent pipe threading process, and the cross-sections of the first wear-resistant sheet and the second wear-resistant sheet are both arc-shaped structures, and the contact area between the first wear-resistant sheet and the pipe during the pipe threading process is smaller, so the wear degree of the butterfly cable during the pipe threading process can be reduced.

[0004] CN112992409A: relates to an optoelectronic composite butterfly cable, which is composed of an insulating plastic body, an electric energy transmission unit and a signal transmission unit. The insulating plastic body is composed of a first accommodating wire section, an intermediate connecting transition section and a second accommodating wire section in sequence. The electric energy transmission unit and the signal transmission unit are arranged in the first accommodating wire section and the second accommodating wire section in correspondence. The electric energy transmission unit includes a live wire, a neutral wire and a ground wire. The live wire, the neutral wire and the ground wire are all arranged in the first accommodating section and are parallel to each other. The live wire and the neutral wire are symmetrically arranged on both sides of the ground wire. The signal transmission unit includes an optical fiber bundle and a reinforcement member. The optical fiber bundle is composed of a plurality of optical fibers twisted around the peripheral side wall of the reinforcement member.

[0005] CN115826167A: discloses a butterfly optical cable, comprising an optical fiber unit, a reinforcing member and a first outer sheath, wherein the optical fiber unit and the reinforcing member are arranged in parallel, the first outer sheath respectively forms inner holes to respectively match the optical fiber unit and the reinforcing member, the optical fiber unit comprises an optical fiber core and a resin layer surrounding the outer side of the optical fiber core, and the optical fiber unit further comprises a polytetrafluoroethylene layer surrounding the outer side of the resin layer and a modified polypropylene layer surrounding the outer side of the polytetrafluoroethylene layer. In the butterfly optical cable, the polytetrafluoroethylene layer and the modified polypropylene layer are added to effectively avoid the signal attenuation phenomenon caused by excessive bending of the optical fiber, and in the process of bending the optical fiber, a certain buffer can be formed to avoid mechanical damage caused by excessive bending angle of the optical fiber, so it can effectively solve the problem that the current optical cable is difficult to lay due to easy damage caused by bending.

[0006] The butterfly cables prepared by the above patents and prior art have high costs, poor impact resistance and bending performance, poor heat resistance, and unsatisfactory safety against lightning strikes and strong electricity. Summary of the invention

[0007] To this end, the present invention proposes a butterfly cable that is lightning-proof and strong-current-proof, so as to at least partially solve the problems in the above-mentioned background technology.

[0008] The technical solution of the present invention is as follows:

[0009] The utility model discloses a butterfly cable for preventing lightning and strong electricity, which is composed of an optical fiber unit and an optical cable protective cover.

[0010] Furthermore, the optical fiber unit includes an optical fiber and a reinforcing core.

[0011] Further, optical fiber is a fiber made of glass or plastic.

[0012] Furthermore, the reinforcing core includes glass fiber reinforced plastic, carbon fiber reinforced plastic, plant fiber reinforced plastic, and organic fiber reinforced plastic.

[0013] Furthermore, the preparation method of the optical cable protective cover is:

[0014] S1: Weigh 20-30 parts of linear low-density PE and 1-5 parts of modified montmorillonite by weight, and mix them evenly in a blender;

[0015] S2: After mixing evenly, dry and remove moisture; add 0.1-0.5 parts of high-efficiency antistatic agent, 0.1-0.3 parts of flame retardant, 0.01-0.05 parts of antioxidant 1010, and 0.1-0.3 parts of ethylene-propylene rubber, and stir evenly;

[0016] S3: putting the material into a twin-screw extruder for extrusion to obtain a modified PE material; and using the modified PE material to prepare an optical cable protective cover.

[0017] Furthermore, the flame retardant is magnesium hydroxide or aluminum hydroxide.

[0018] Furthermore, the screw speed is 50-100r / min.

[0019] Furthermore, the extrusion temperature is 140-160°C.

[0020] Furthermore, the preparation method of the modified montmorillonite is:

[0021] Weigh 10-20 parts of sodium montmorillonite and 5-10 parts of hexadecyltrimethylammonium bromide by weight, add them to 400-500 parts of 40-50% ethanol aqueous solution, heat to 50-60°C, mix and stir for 30-60 minutes; filter, wash with water and ethanol solution until there is no bromide ion; dry at 80-100°C for 5-10 hours; grind and sieve to obtain modified montmorillonite.

[0022] Furthermore, the high-efficiency antistatic agent is an antistatic agent containing thiadiazolylphenylboronic acid molybdenum, and its preparation method is:

[0023] H1: By weight, 0.09-0.18 parts of molybdenum nitrate, 0.07-0.14 parts of 3-(2-carboxyvinyl)phenylboric acid, and 0.008-0.03 parts of acetic acid are placed in 200-300 parts of toluene and stirred at 30-40°C for 20-50 minutes;

[0024] H2: Continue to add 15-30 parts of dithiothiadiazole, 8-16 parts of allyl glycidyl ether, and 2-5 parts of triethanolamine, heat and stir to 70-80°C, react for 60-120 minutes, then add 0.05-0.5 parts of dioctadecylamine, react for 60-100 minutes, and remove toluene by reduced pressure distillation to obtain an antistatic agent containing thiadiazolyl phenyl borate molybdenum.

[0025] Reaction mechanism:

[0026] The antistatic agent containing thiadiazolyl phenyl borate molybdenum adopts dithiothiadiazole to carry out thiol-ene addition reaction with allyl glycidyl ether and 3-(2-carboxyvinyl)phenyl borate molybdenum complex respectively;

[0027] Excess thiol is then reacted with dioctadecylamine to undergo a thiol-amino addition reaction to obtain an antistatic agent containing thiadiazole-phenyl molybdenum borate, which contains thiadiazole, molybdenum borate, and glycidyl ether functional groups. Thiadiazole is a five-membered ring containing nitrogen and sulfur atoms and has excellent conductive properties. The formation of a molybdenum borate complex helps prevent static electricity accumulation, and ultimately forms an antistatic agent with special lightning protection and electrostatic effects. This antistatic agent has potential application value in the fields of electronic equipment, aerospace, and petrochemicals.

[0028] Technical effect:

[0029] The butterfly cable of the present invention is lightning-proof and high-current-proof. Compared with the prior art, the present invention has the following significant effects:

[0030] 1. The butterfly cable for lightning protection and high-voltage power prepared by the present invention has small outer diameter, light weight, low cost, and excellent impact resistance and bending performance;

[0031] 2. The butterfly cable for lightning protection and high-voltage power prepared by the present invention has a melting temperature of up to 139.6°C and has good heat resistance;

[0032] 3. The butterfly cable for lightning protection and strong current prepared by the present invention has low surface resistance and good antistatic performance;

[0033] 4. The butterfly cable prepared by the present invention is resistant to lightning strikes and strong electricity, and adopts FRP reinforcing core material to ensure the safety requirements of the optical cable against lightning strikes and strong electricity environment when used outdoors. DETAILED DESCRIPTION

[0034] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Test method:

[0036] 1. Heat resistance test: using differential thermal analysis test, melting temperature characterization;

[0037] 2. According to YD / T1997.1-2022 "Introduction Cable for Communication Part 1: Butterfly Cable", the impact performance and repeated bending of the butterfly cable were tested: residual additional attenuation ≤ 0.4;

[0038] 3. Determination of surface resistance: Refer to "HGT3008-1999-Determination of surface resistance of substrate" and use an ultra-high resistance tester to measure.

[0039] Example 1

[0040] The utility model discloses a butterfly cable for preventing lightning and strong electricity, which is composed of an optical fiber unit and an optical cable protective cover.

[0041] The optical fiber unit comprises an optical fiber and a reinforcing core.

[0042] The reinforcing core is glass fiber reinforced plastic.

[0043] The preparation method of the optical cable protective cover is as follows:

[0044] S1: Weigh 20g of linear low-density PE and 1g of modified montmorillonite, and mix them evenly in a blender;

[0045] S2: After mixing evenly, dry and remove moisture; add 0.1g high-efficiency antistatic agent, 0.1g flame retardant, 0.01g antioxidant 1010, and 0.1g ethylene propylene rubber, and stir evenly;

[0046] S3: putting the material into a twin-screw extruder for extrusion to obtain a modified PE material; and using the modified PE material to prepare an optical cable protective cover.

[0047] The flame retardant is magnesium hydroxide.

[0048] The screw speed is 50r / min.

[0049] The extrusion temperature is 140°C.

[0050] The preparation method of the modified montmorillonite is:

[0051] Weigh 10g of sodium montmorillonite and 5g of hexadecyltrimethylammonium bromide, add them to 400g of 40% ethanol aqueous solution, heat to 50°C, and stir for 30min; filter, wash with water and ethanol solution until there is no bromide ion; dry at 80°C for 5h; grind and sieve to obtain modified montmorillonite.

[0052] The high-efficiency antistatic agent is an antistatic agent containing thiadiazolylphenylboronic acid molybdenum, and its preparation method is as follows:

[0053] H1: Weigh 0.09 g of molybdenum nitrate, 0.07 g of 3-(2-carboxyvinyl)phenylboronic acid, and 0.008 g of acetic acid in 200 g of toluene and stir at 30°C for 20 minutes;

[0054] H2: Continue to add 15g of dithiothiadiazole, 8g of allyl glycidyl ether, and 2g of triethanolamine, raise the temperature to 70°C with stirring, react for 60 minutes, then add 0.05g of dioctadecylamine, react for 60 minutes, and remove toluene by vacuum distillation to obtain an antistatic agent containing thiadiazolyl phenyl borate molybdenum.

[0055] Example 2

[0056] The utility model discloses a butterfly cable for preventing lightning and strong electricity, which is composed of an optical fiber unit and an optical cable protective cover.

[0057] The optical fiber unit comprises an optical fiber and a reinforcing core.

[0058] The reinforcing core is carbon fiber reinforced plastic.

[0059] The preparation method of the optical cable protective cover is as follows:

[0060] S1: Weigh 23g of linear low-density PE and 2g of modified montmorillonite, and mix them evenly in a blender;

[0061] S2: After mixing evenly, dry and remove moisture; add 0.2g high-efficiency antistatic agent, 0.2g flame retardant, 0.02g antioxidant 1010, and 0.2g ethylene propylene rubber, and stir evenly;

[0062] S3: putting the material into a twin-screw extruder for extrusion to obtain a modified PE material; and using the modified PE material to prepare an optical cable protective cover.

[0063] The flame retardant is magnesium hydroxide.

[0064] The screw speed is 60r / min.

[0065] The extrusion temperature is 145°C.

[0066] The preparation method of the modified montmorillonite is:

[0067] Weigh 13g of sodium montmorillonite and 6g of hexadecyltrimethylammonium bromide, heat to 55°C in 440g of 45% ethanol aqueous solution, and stir for 40min; filter, wash with water and ethanol solution until there is no bromide ion; dry at 85°C for 6h; grind and sieve to obtain modified montmorillonite.

[0068] The high-efficiency antistatic agent is an antistatic agent containing thiadiazolylphenylboronic acid molybdenum, and its preparation method is as follows:

[0069] H1: Weigh 0.12 g of molybdenum nitrate, 0.09 g of 3-(2-carboxyvinyl)phenylboronic acid, and 0.01 g of acetic acid in 230 g of toluene and stir at 35°C for 30 minutes;

[0070] H2: Continue to add 20g of dithiothiadiazole, 10g of allyl glycidyl ether, and 3g of triethanolamine, raise the temperature to 75°C with stirring, react for 80min, then add 0.2g of dioctadecylamine, react for 70min, remove toluene by vacuum distillation, and obtain an antistatic agent containing thiadiazolyl phenyl borate molybdenum.

[0071] Example 3

[0072] The utility model discloses a butterfly cable for preventing lightning and strong electricity, which is composed of an optical fiber unit and an optical cable protective cover.

[0073] The optical fiber unit comprises an optical fiber and a reinforcing core.

[0074] The reinforcing core is plant fiber reinforced plastic.

[0075] The preparation method of the optical cable protective cover is as follows:

[0076] S1: Weigh 28g of linear low-density PE and 4g of modified montmorillonite, and mix them evenly in a blender;

[0077] S2: After mixing evenly, dry and remove moisture; add 0.4g high-efficiency antistatic agent, 0.2g flame retardant, 0.04g antioxidant 1010, and 0.2g ethylene propylene rubber, and stir evenly;

[0078] S3: putting the material into a twin-screw extruder for extrusion to obtain a modified PE material; and using the modified PE material to prepare an optical cable protective cover.

[0079] The flame retardant is aluminum hydroxide.

[0080] The screw speed is 90r / min.

[0081] The extrusion temperature is 155°C.

[0082] The preparation method of the modified montmorillonite is:

[0083] Weigh 18g of sodium montmorillonite and 9g of hexadecyltrimethylammonium bromide, heat to 55°C in 480g of 45% ethanol aqueous solution, and stir for 50min; filter, wash with water and ethanol solution until there is no bromide ion; dry at 95°C for 9h; grind and sieve to obtain modified montmorillonite.

[0084] The high-efficiency antistatic agent is an antistatic agent containing thiadiazolylphenylboronic acid molybdenum, and its preparation method is as follows:

[0085] H1: Weigh 0.16 g of molybdenum nitrate, 0.12 g of 3-(2-carboxyvinyl)phenylboronic acid, and 0.02 g of acetic acid in 280 g of toluene and stir at 35°C for 40 minutes;

[0086] H2: Continue to add 25g of dithiothiadiazole, 14g of allyl glycidyl ether, and 4g of triethanolamine, heat and stir to 75°C, react for 100min, then add 0.4g of dioctadecylamine, react for 90 minutes, and remove toluene by vacuum distillation to obtain an antistatic agent containing thiadiazolyl phenyl borate molybdenum.

[0087] Example 4

[0088] The utility model discloses a butterfly cable for preventing lightning and strong electricity, which is composed of an optical fiber unit and an optical cable protective cover.

[0089] The optical fiber unit comprises an optical fiber and a reinforcing core.

[0090] The reinforcing core is organic fiber reinforced plastic.

[0091] The preparation method of the optical cable protective cover is as follows:

[0092] S1: Weigh 30g of linear low-density PE and 5g of modified montmorillonite, mix them evenly in a blender;

[0093] S2: After mixing evenly, dry and remove moisture; add 0.5g high-efficiency antistatic agent, 0.3g flame retardant, 0.05g antioxidant 1010, and 0.3g ethylene propylene rubber, and stir evenly;

[0094] S3: putting the material into a twin-screw extruder for extrusion to obtain a modified PE material; and using the modified PE material to prepare an optical cable protective cover.

[0095] The flame retardant is aluminum hydroxide.

[0096] The screw speed is 100r / min.

[0097] The extrusion temperature is 160°C.

[0098] The preparation method of the modified montmorillonite is:

[0099] Weigh 20g of sodium montmorillonite and 10g of hexadecyltrimethylammonium bromide, heat to 60°C in 500g of 50% ethanol aqueous solution, mix and stir for 60min; filter, wash with water and ethanol solution until there is no bromide ion; dry at 100°C for 10h; grind and sieve to obtain modified montmorillonite.

[0100] The high-efficiency antistatic agent is an antistatic agent containing thiadiazolylphenylboronic acid molybdenum, and its preparation method is as follows:

[0101] H1: Weigh 0.18 g of molybdenum nitrate, 0.14 g of 3-(2-carboxyvinyl)phenylboronic acid, and 0.03 g of acetic acid in 300 g of toluene and stir at 40°C for 50 minutes;

[0102] H2: Continue to add 30g of dithiothiadiazole, 16g of allyl glycidyl ether, and 5g of triethanolamine, raise the temperature to 80°C with stirring, react for 120min, then add 0.5g of dioctadecylamine, react for 100min, remove toluene by vacuum distillation, and obtain an antistatic agent containing thiadiazolyl phenyl borate molybdenum.

[0103] Comparative Example 1

[0104] No high-efficiency antistatic agent was added, and the rest was the same as in Example 1.

[0105] Comparative Example 2

[0106] The other steps were the same as in Example 1 except that dithiothiadiazole was not added.

[0107] Comparative Example 3

[0108] Except for adding allyl glycidyl ether, the other steps were the same as those in Example 1.

[0109] Test results:

[0110]

[0111]

[0112] Through the data analysis of the above embodiments and comparative examples, the butterfly cable for lightning protection and high-current prepared by the present invention has excellent impact resistance and bending performance; the melting temperature is as high as 139.6°C, and it has good heat resistance; the surface resistance is low, and it has good antistatic performance.

[0113] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A butterfly cable for lightning protection and strong current protection, characterized by: It is composed of an optical fiber unit and an optical cable protective cover; The preparation method of the optical cable protective cover is as follows: S1: Weigh 20-30 parts of linear low-density PE and 1-5 parts of modified montmorillonite by weight, and mix them evenly in a blender; S2: After mixing evenly, dry and remove moisture; add 0.1-0.5 parts of high-efficiency antistatic agent, 0.1-0.3 parts of flame retardant, 0.01-0.05 parts of antioxidant 1010, and 0.1-0.3 parts of ethylene-propylene rubber, and stir evenly; S3: putting the material into a twin-screw extruder for extrusion to obtain a modified PE material; and preparing an optical cable protective cover using the modified PE material; The high-efficiency antistatic agent is an antistatic agent containing thiadiazolylphenylboronic acid molybdenum, and its preparation method is as follows: H1: By weight, 0.09-0.18 parts of molybdenum nitrate, 0.07-0.14 parts of 3-(2-carboxyvinyl)phenylboric acid, and 0.008-0.03 parts of acetic acid are placed in 200-300 parts of toluene and stirred at 30-40°C for 20-50 minutes; H2: Continue to add 15-30 parts of dithiothiadiazole, 8-16 parts of allyl glycidyl ether, and 2-5 parts of triethanolamine, heat and stir to 70-80°C, react for 60-120 minutes, then add 0.05-0.5 parts of dioctadecylamine, react for 60-100 minutes, and remove toluene by reduced pressure distillation to obtain an antistatic agent containing thiadiazolyl phenyl borate molybdenum.

2. A butterfly cable for lightning protection and strong current protection according to claim 1, characterized in that: The optical fiber unit comprises an optical fiber and a reinforcing core.

3. A butterfly cable for lightning protection and strong current protection according to claim 2, characterized in that: The reinforcing core includes glass fiber reinforced plastic, carbon fiber reinforced plastic, plant fiber reinforced plastic, and organic fiber reinforced plastic.

4. The butterfly cable for lightning protection and strong current protection according to claim 1, characterized in that: The flame retardant is magnesium hydroxide or aluminum hydroxide.

5. The butterfly cable for lightning protection and strong current protection according to claim 1, characterized in that: The screw speed is 50-100r / min.

6. The butterfly cable for lightning protection and strong current protection according to claim 1, characterized in that: The extrusion temperature is 140-160°C.

7. The butterfly cable for lightning protection and strong current protection according to claim 1, characterized in that: The preparation method of the modified montmorillonite is: Weigh 10-20 parts of sodium montmorillonite and 5-10 parts of hexadecyltrimethylammonium bromide by weight, add 400-500 parts of 40-50% ethanol aqueous solution, heat to 50-60°C, mix and stir for 30-60 minutes; filter, wash with water and ethanol solution until there is no bromide ion; dry at 80-100°C for 5-10 hours; Grind and sieve to obtain modified montmorillonite.

8. The butterfly cable for lightning protection and strong current protection according to claim 2, characterized in that: The optical fiber is a fiber made of glass or plastic.

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