CN114038615A - Environment-friendly high-temperature-resistant flame-retardant computer cable - Google Patents

Environment-friendly high-temperature-resistant flame-retardant computer cable Download PDF

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Publication number
CN114038615A
CN114038615A CN202111327474.3A CN202111327474A CN114038615A CN 114038615 A CN114038615 A CN 114038615A CN 202111327474 A CN202111327474 A CN 202111327474A CN 114038615 A CN114038615 A CN 114038615A
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protective layer
retardant
environment
layer
temperature
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CN202111327474.3A
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CN114038615B (en
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朱从林
陆秀国
李正宝
杨茂明
于杰
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Anhui Hui Ning Electrical Instrument Group Co ltd
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Anhui Hui Ning Electrical Instrument Group Co ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1805Protections not provided for in groups H01B7/182 - H01B7/26
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06Insulating conductors or cables
    • H01B13/14Insulating conductors or cables by extrusion
    • H01B13/141Insulating conductors or cables by extrusion of two or more insulating layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/24Sheathing; Armouring; Screening; Applying other protective layers by extrusion
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/02Disposition of insulation
    • H01B7/0208Cables with several layers of insulating material
    • H01B7/0216Two layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/02Disposition of insulation
    • H01B7/0275Disposition of insulation comprising one or more extruded layers of insulation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1875Multi-layer sheaths
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • H01B7/292Protection against damage caused by extremes of temperature or by flame using material resistant to heat
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • H01B7/295Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)

Abstract

The invention belongs to the technical field of cables, and particularly relates to an environment-friendly high-temperature-resistant flame-retardant computer cable which comprises an inner protective layer, wherein a square cavity is formed in the inner part of one side of the bottom of the inner protective layer, rotating grooves are formed in the inner walls of two sides of the inner protective layer, an outer protective layer is fixedly welded on the outer surface of the inner protective layer, connecting holes are formed between the two rotating grooves and the square cavity, pulleys are arranged in the two connecting holes, a telescopic rod is fixedly welded on the inner wall of the top of the square cavity, a tooth sheet is fixedly welded at the bottom end of the telescopic rod, screw rod guide sleeves are rotatably arranged in the two rotating grooves, a screw rod is sleeved on one end, close to each other, of the two screw rod guide sleeves in a threaded manner, elastic ropes are sleeved on the two screw rod guide sleeves, and one ends of the two elastic ropes are fixed on the corresponding screw rod guide sleeves. The computer cable is simple in structure and convenient to use, and has high temperature resistance, good buffering effect and long service life.

Description

Environment-friendly high-temperature-resistant flame-retardant computer cable
Technical Field
The invention relates to the technical field of cables, in particular to an environment-friendly high-temperature-resistant flame-retardant computer cable.
Background
With the development of industries such as petrochemical industry, communication, traffic, building, electric power and the like in China, the demand of industries such as power plants, transformer substations, smelting, petrochemical industry and the like for cables is very large in recent years, and higher requirements are put forward on the performance and the number of computer cables, so that materials for manufacturing the cables are gradually upgraded, specialized and specialized. Computer cables are required to have not only excellent physical properties such as tensile strength, elongation at break, etc., but also good flame retardancy and impact resistance, etc. Although the cables in the current market are various, the flame retardance and the impact resistance of most of the cables are still not ideal, and the cables have the defects of low strength, poor impact resistance and poor flame retardance in the using process, so that the service life of the cables is shortened, the economic pressure is increased, and potential safety hazards exist.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an environment-friendly high-temperature-resistant flame-retardant computer cable.
In order to achieve the purpose, the invention adopts the following technical scheme:
an environment-friendly high-temperature-resistant flame-retardant computer cable comprises an inner protective layer, wherein a square cavity is arranged inside one side of the bottom of the inner protective layer, rotating grooves are formed in the inner walls of the two sides of the inner protective layer, an outer protective layer is fixedly welded on the outer surface of the inner protective layer, connecting holes are formed between the two rotating grooves and the square cavity, pulleys are arranged in the two connecting holes, the fixed welding has the telescopic link on the top inner wall in square chamber, and the fixed welding of bottom of telescopic link has the tooth piece, and two rotate the inslot and all rotate and install the lead screw guide pin bushing, and the equal screw thread of one end that two lead screw guide pins are close to each other has cup jointed the elasticity rope on lead screw and two lead screw guide pins, and the one end of two elasticity ropes is fixed on the lead screw guide pin bushing that corresponds, and the other end is fixed on the tooth piece through the pulley that corresponds, and the one end that two lead screws are close to each other all rotates installs the guard plate, and movable mounting has a plurality of cable cores between two guard plates.
Preferably, the bottom of the inner protective layer and the bottom of the outer protective layer are provided with a hidden groove communicated with the square cavity, a worm meshed with the tooth sheet is rotatably mounted in the hidden groove, and a knob is fixedly sleeved at the bottom end of the worm.
Preferably, the outer protective layer is divided into three layers, the middle layer is an inner flame-retardant layer, the outermost layer and the innermost layer are insulating layers, and the insulating layers are flame-retardant cross-linked polyethylene layers.
Preferably, fixed welding has a slide rail on the bottom inner wall of interior inoxidizing coating, and slidable mounting has two sliders on the slide rail, two sliders respectively with corresponding guard plate fixed connection and the fixed welding have same first spring between two sliders.
Preferably, the two screw rod guide sleeves are sleeved with torsion springs, one ends of the torsion springs are fixed on the corresponding screw rod guide sleeves, and the other ends of the torsion springs are fixed on the inner walls of the corresponding rotating grooves.
Preferably, the telescopic rod is sleeved with a second spring, one end of the second spring is fixed on the telescopic rod, and the other end of the second spring is fixed on the tooth piece.
Preferably, the material of the flame-retardant crosslinked polyethylene layer is composed of the following raw materials in parts by weight:
silane coupling agent kh 5603-5, lignin 60-70, butyric anhydride 120-130, 1-methylimidazole 5-7, polyethylene 110-130, cross-linking agent taic 3-4, chlorinated paraffin 10-13, sp-801-2 and carbon nano tube 5-11.
Preferably, the preparation method of the flame-retardant crosslinked polyethylene layer and the material thereof comprises the following steps:
(1) adding carbon nano tubes into absolute ethyl alcohol with the weight 16-20 times of that of the carbon nano tubes, uniformly stirring, adding a silane coupling agent kh560, and performing ultrasonic treatment for 1-2 hours to obtain a silane dispersion liquid;
(2) adding lignin into butyric anhydride, uniformly stirring, adding 1-methylimidazole, reacting for 20-25 hours at 110 ℃, cooling to normal temperature, adding into the silane dispersion, adding sp-80, uniformly stirring, standing for 2-3 hours, performing suction filtration, washing a filter cake with water, and performing vacuum drying to obtain a composite filler;
(3) and (3) mixing the composite filler with polyethylene, a cross-linking agent taic and chlorinated paraffin, uniformly stirring, feeding into an extruder, carrying out melt extrusion, and cooling to obtain the flame-retardant cross-linked polyethylene layer material.
Preferably, the temperature for vacuum drying in step (2) is 90-100 ℃.
In the environment-friendly high-temperature-resistant flame-retardant computer cable, in order to increase the buffering effect of cable cores, the hidden knob is rotated to drive the worm to rotate, the worm drives the tooth plate to move downwards, the tooth plate pulls the two elastic ropes to drive the two lead screw guide sleeves to rotate, so that the two lead screws can be driven to move in opposite directions, the two protection plates can be driven to move in opposite directions, a plurality of cable cores between the two protection plates can be clamped and positioned in an opposite manner, the buffering protection effect is achieved, and the cable cores are prevented from being damaged by external impact.
The inner flame-retardant layer on the outer protective layer can play a flame-retardant effect, and the insulating layer can play an insulating effect, so that the service life of the cable core is prolonged. The computer cable is simple in structure and convenient to use, and has high temperature resistance, good buffering effect and long service life;
the flame-retardant cross-linked polyethylene layer material added in the invention takes lignin as a filler, is subjected to esterification modification by butyric anhydride and then is dispersed in a silanol solution containing carbon nano tubes, so that the esterified and modified lignin can be well dispersed among the tubes and on the surface of the carbon nano tubes, and can form stable carbon layers when burning in fire, and the carbon layers are attached to the tubes and on the surface of the carbon nano tubes, so that cracks are not easy to generate, holes are not easy to appear, oxygen and combustible gas can be effectively blocked, good heat and gas transmission blocking effects are achieved, the flame-retardant performance of the polyethylene layer is well improved, and the added lignin and the carbon nano tubes can be well dispersed among polyethylene base materials through surface modification, so that the toughness and the surface resistance of a finished product material are further improved.
Drawings
FIG. 1 is a schematic structural diagram of an environment-friendly high-temperature-resistant flame-retardant computer cable according to the present invention;
FIG. 2 is a schematic structural diagram of part A of an environment-friendly high-temperature-resistant flame-retardant computer cable according to the present invention;
fig. 3 is a detailed structural layer diagram of an outer protective layer of the environment-friendly high temperature resistant flame retardant computer cable according to the present invention.
In the figure: the cable comprises an inner protective layer 1, a cable core 2, an outer protective layer 3, a lead screw guide sleeve 4, a torsion spring 5, an elastic rope 6, a first spring 7, a square cavity 8, a connecting hole 9, a protective plate 10, a rotating groove 11, a lead screw 12, an inner flame-retardant layer 13, an insulating layer 14, a hidden knob 15, a hidden groove 16, a worm 17, a toothed sheet 18, a second spring 19 and a telescopic rod 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-3, an environment-friendly high temperature resistant flame retardant computer cable comprises an inner protective layer 1, a square cavity 8 is formed inside one side of the bottom of the inner protective layer 1, rotating grooves are formed on the inner walls of both sides of the inner protective layer, an outer protective layer 3 is fixedly welded on the outer surface of the inner protective layer 1, connecting holes 9 are formed between the two rotating grooves and the square cavity 8, pulleys are arranged in the two connecting holes 9, a telescopic rod 20 is fixedly welded on the inner wall of the top of the square cavity 8, a tooth plate 18 is fixedly welded at the bottom end of the telescopic rod 20, screw rod guide sleeves 4 are rotatably installed in the two rotating grooves, a screw rod 12 is respectively sleeved at one end of each two screw rod guide sleeves 4 close to each other in a threaded manner, an elastic rope 6 is respectively sleeved on each two screw rod guide sleeves 4, one end of each elastic rope 6 is fixed on the corresponding screw rod guide sleeve 4, the other end is fixed on the tooth plate 18 through the corresponding pulley, a protective plate 10 is rotatably installed at one end of each two screw rods 10 close to each other, a plurality of cable cores 2 are movably arranged between the two protection plates 10.
The flame-retardant crosslinked polyethylene layer is prepared from the following raw materials in parts by weight:
silane coupling agent kh 5605, lignin 70, butyric anhydride 130, 1-methylimidazole 7, polyethylene 130, cross-linking agent taic 4, chlorinated paraffin 13, sp-802 and carbon nano tube 11.
Preferably, the preparation method of the flame-retardant crosslinked polyethylene layer and the material thereof comprises the following steps:
(1) adding a carbon nano tube into absolute ethyl alcohol with the weight being 20 times of that of the carbon nano tube, uniformly stirring, adding a silane coupling agent kh560, and performing ultrasonic treatment for 2 hours to obtain a silane dispersion liquid;
(2) adding lignin into butyric anhydride, uniformly stirring, adding 1-methylimidazole, stirring at 110 ℃ for reaction for 25 hours, cooling to normal temperature, adding the mixture into the silane dispersion, adding sp-80, uniformly stirring, standing for 3 hours, performing suction filtration, washing a filter cake with water, and performing vacuum drying to obtain a composite filler;
(3) and (3) mixing the composite filler with polyethylene, a cross-linking agent taic and chlorinated paraffin, uniformly stirring, feeding into an extruder, carrying out melt extrusion, and cooling to obtain the flame-retardant cross-linked polyethylene layer material.
The temperature for vacuum drying in step (2) was 100 ℃.
Example two
In the invention, the bottoms of the inner protective layer 1 and the outer protective layer 3 are provided with the same hidden groove 16 communicated with the square cavity 8, a worm 17 meshed with a tooth piece 18 is rotatably arranged in the hidden groove 16, the bottom end of the worm 17 is fixedly sleeved with a knob 15, the worm 17 is driven to rotate by rotating the hidden knob 15, and the worm 17 drives the tooth piece 18 to move downwards.
In the invention, the outer protection layer 31 is divided into three layers, the middle layer is the inner flame-retardant layer 13, the outermost layer and the innermost layer are both the insulating layers 14, the insulating layers 14 are flame-retardant cross-linked polyethylene layers, the flame-retardant effect can be achieved through the inner flame-retardant layer 13 on the outer protection layer 3, the insulating effect can be achieved through the insulating layers 14, and the service life of the cable core 2 is prolonged.
According to the invention, the slide rail is fixedly welded on the inner wall of the bottom of the inner protective layer 1, the two slide blocks are slidably mounted on the slide rail, the two slide blocks are respectively and fixedly connected with the corresponding protective plate 10, the same first spring 7 is fixedly welded between the two slide blocks, the slide rail and the slide blocks are convenient for the protective plate 10 to move, the first spring 7 is convenient for the protective plate 10 to reset, and the buffering effect is better.
According to the invention, the two lead screw guide sleeves 4 are respectively sleeved with the torsion springs 5, one end of each torsion spring 5 is fixed on the corresponding lead screw guide sleeve 4, the other end of each torsion spring 5 is fixed on the inner wall of the corresponding rotating groove, and the reset of the lead screw guide sleeves 4 is facilitated through the torsion springs 5.
In the invention, the telescopic rod 20 is sleeved with the second spring 19, one end of the second spring 19 is fixed on the telescopic rod 20, the other end of the second spring 19 is fixed on the tooth piece 18, and the resetting of the telescopic rod 20 is facilitated through the second spring 19.
The flame-retardant crosslinked polyethylene layer is prepared from the following raw materials in parts by weight:
silane coupling agent kh 5603, lignin 60, butyric anhydride 120, 1-methylimidazole 5, polyethylene 110, cross-linking agent taic 3, chlorinated paraffin 10, sp-801 and carbon nano tube 5.
Preferably, the preparation method of the flame-retardant crosslinked polyethylene layer and the material thereof comprises the following steps:
(1) adding a carbon nano tube into absolute ethyl alcohol with the weight 16 times that of the carbon nano tube, uniformly stirring, adding a silane coupling agent kh560, and performing ultrasonic treatment for 1 hour to obtain a silane dispersion liquid;
(2) adding lignin into butyric anhydride, stirring uniformly, adding 1-methylimidazole, stirring at 110 ℃ for reacting for 20 hours, cooling to normal temperature, adding into the silane dispersion, adding sp-80, stirring uniformly, standing for 2 hours, performing suction filtration, washing a filter cake with water, and drying in vacuum to obtain a composite filler;
(3) and (3) mixing the composite filler with polyethylene, a cross-linking agent taic and chlorinated paraffin, uniformly stirring, feeding into an extruder, carrying out melt extrusion, and cooling to obtain the flame-retardant cross-linked polyethylene layer material.
The temperature for vacuum drying in step (2) was 90 ℃.
The working principle is as follows: in the invention, in order to increase the buffering effect of the cable core 2, the hidden knob 15 is rotated to drive the worm 17 to rotate, the worm 17 drives the tooth sheet 18 to move downwards, the tooth sheet 18 pulls the two elastic ropes 6 to drive the two lead screw guide sleeves 4 to rotate, so that the two lead screws 12 can be driven to move in opposite directions, the two protection plates 10 can be driven to move in opposite directions, the plurality of cable cores 2 between the two protection plates 10 can be clamped and positioned in an opposite manner, the buffering protection effect is achieved, and the cable core 2 is prevented from being damaged by external impact.
The flame-retardant effect can be achieved through the inner flame-retardant layer 13 on the outer protective layer 3, the insulating effect can be achieved through the insulating layer 14, and the service life of the cable core 2 is prolonged. The computer cable is simple in structure and convenient to use, and has high temperature resistance, good buffering effect and long service life.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (9)

1. An environment-friendly high-temperature-resistant flame-retardant computer cable comprises an inner protective layer (1) and is characterized in that a square cavity (8) is formed inside one side of the bottom of the inner protective layer (1), rotating grooves are formed in the inner walls of the two sides of the inner protective layer, an outer protective layer (3) is fixedly welded on the outer surface of the inner protective layer (1), connecting holes (9) are formed between the two rotating grooves and the square cavity (8), pulleys are arranged in the two connecting holes (9), a telescopic rod (20) is fixedly welded on the inner wall of the top of the square cavity (8), tooth sheets (18) are fixedly welded at the bottom end of the telescopic rod (20), screw rod guide sleeves (4) are rotatably arranged in the two rotating grooves, a screw rod (12) is sleeved at one end, close to each other, an elastic rope (6) is sleeved on the two screw rod guide sleeves (4), one end of the two elastic ropes (6) is fixed on the corresponding screw rod guide sleeves (4), the other end is fixed on the tooth piece (18) through the corresponding pulley, the protection plate (10) is installed in the equal rotation of the one end that two lead screws (10) are close to each other, and movable mounting has a plurality of cable cores (2) between two protection plates (10).
2. The environment-friendly high-temperature-resistant flame-retardant computer cable as claimed in claim 1, wherein the bottom of the inner protective layer (1) and the bottom of the outer protective layer (3) are provided with a hidden groove (16) communicated with the square cavity (8), a worm (17) meshed with the teeth (18) is rotatably mounted in the hidden groove (16), and a knob (15) is fixedly sleeved at the bottom end of the worm (17).
3. The environment-friendly high-temperature-resistant flame-retardant computer cable according to claim 1, wherein the outer protective layer (31) is divided into three layers, the middle layer is an inner flame-retardant layer (13), the outermost layer and the innermost layer are insulating layers (14), and the insulating layer (14) is a flame-retardant crosslinked polyethylene layer.
4. The environment-friendly high-temperature-resistant flame-retardant computer cable as claimed in claim 1, wherein a sliding rail is fixedly welded to the inner wall of the bottom of the inner protective layer (1), two sliding blocks are slidably mounted on the sliding rail, the two sliding blocks are respectively and fixedly connected with the corresponding protective plate (10), and the same first spring (7) is fixedly welded between the two sliding blocks.
5. The environment-friendly high-temperature-resistant flame-retardant computer cable as claimed in claim 1, wherein the two lead screw guide sleeves (4) are sleeved with torsion springs (5), one end of each torsion spring (5) is fixed on the corresponding lead screw guide sleeve (4), and the other end is fixed on the inner wall of the corresponding rotating groove.
6. The environment-friendly high-temperature-resistant flame-retardant computer cable as claimed in claim 1, wherein the telescopic rod (20) is sleeved with a second spring (19), one end of the second spring (19) is fixed on the telescopic rod (20), and the other end of the second spring is fixed on the tooth plate (18).
7. The environment-friendly high temperature resistant flame retardant computer cable according to claim 3, wherein the flame retardant cross-linked polyethylene layer is made of the following raw materials in parts by weight:
silane coupling agent kh 5603-5, lignin 60-70, butyric anhydride 120-130, 1-methylimidazole 5-7, polyethylene 110-130, cross-linking agent taic 3-4, chlorinated paraffin 10-13, sp-801-2 and carbon nano tube 5-11.
8. The environment-friendly high temperature resistant flame retardant computer cable according to claim 7, wherein the flame retardant crosslinked polyethylene layer, the preparation method of the material thereof, comprises the following steps:
(1) adding carbon nano tubes into absolute ethyl alcohol with the weight 16-20 times of that of the carbon nano tubes, uniformly stirring, adding a silane coupling agent kh560, and performing ultrasonic treatment for 1-2 hours to obtain a silane dispersion liquid;
(2) adding lignin into butyric anhydride, uniformly stirring, adding 1-methylimidazole, reacting for 20-25 hours at 110 ℃, cooling to normal temperature, adding into the silane dispersion, adding sp-80, uniformly stirring, standing for 2-3 hours, performing suction filtration, washing a filter cake with water, and performing vacuum drying to obtain a composite filler;
(3) and (3) mixing the composite filler with polyethylene, a cross-linking agent taic and chlorinated paraffin, uniformly stirring, feeding into an extruder, carrying out melt extrusion, and cooling to obtain the flame-retardant cross-linked polyethylene layer material.
9. The environment-friendly high temperature resistant flame retardant computer cable according to claim 8, wherein the temperature of vacuum drying in step (2) is 90-100 ℃.
CN202111327474.3A 2021-11-10 2021-11-10 Environment-friendly high-temperature-resistant flame-retardant computer cable Active CN114038615B (en)

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Application Number Priority Date Filing Date Title
CN202111327474.3A CN114038615B (en) 2021-11-10 2021-11-10 Environment-friendly high-temperature-resistant flame-retardant computer cable

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CN114038615B CN114038615B (en) 2023-07-18

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020074155A1 (en) * 2000-07-06 2002-06-20 Fortin Henry E. Insulator band, wiring system, and kit
CN213545990U (en) * 2020-11-03 2021-06-25 安徽电缆股份有限公司 Flat cable convenient to wall-attached is fixed

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020074155A1 (en) * 2000-07-06 2002-06-20 Fortin Henry E. Insulator band, wiring system, and kit
CN213545990U (en) * 2020-11-03 2021-06-25 安徽电缆股份有限公司 Flat cable convenient to wall-attached is fixed

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