CN116679391A - Flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable and production method thereof - Google Patents
Flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable and production method thereof Download PDFInfo
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- CN116679391A CN116679391A CN202310520678.1A CN202310520678A CN116679391A CN 116679391 A CN116679391 A CN 116679391A CN 202310520678 A CN202310520678 A CN 202310520678A CN 116679391 A CN116679391 A CN 116679391A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 39
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000003063 flame retardant Substances 0.000 title claims abstract description 23
- 230000006835 compression Effects 0.000 title claims abstract description 18
- 238000007906 compression Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000005187 foaming Methods 0.000 claims abstract description 45
- 239000013307 optical fiber Substances 0.000 claims abstract description 33
- 210000004177 elastic tissue Anatomy 0.000 claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 19
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 14
- 239000006229 carbon black Substances 0.000 claims abstract description 13
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 12
- 238000005452 bending Methods 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 40
- 239000002994 raw material Substances 0.000 claims description 32
- 229910052757 nitrogen Inorganic materials 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 15
- 239000006261 foam material Substances 0.000 claims description 12
- 238000007731 hot pressing Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 6
- 239000005060 rubber Substances 0.000 claims description 6
- 229920002678 cellulose Polymers 0.000 claims description 5
- 239000001913 cellulose Substances 0.000 claims description 5
- 239000000047 product Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 241000196324 Embryophyta Species 0.000 claims description 4
- 244000043261 Hevea brasiliensis Species 0.000 claims description 4
- 241000208202 Linaceae Species 0.000 claims description 4
- 235000004431 Linum usitatissimum Nutrition 0.000 claims description 4
- 239000012467 final product Substances 0.000 claims description 4
- 150000004676 glycans Chemical class 0.000 claims description 4
- 229920001282 polysaccharide Polymers 0.000 claims description 4
- 239000005017 polysaccharide Substances 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 239000011261 inert gas Substances 0.000 abstract description 2
- 150000002829 nitrogen Chemical class 0.000 abstract description 2
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 3
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000013012 foaming technology Methods 0.000 abstract 1
- 239000006260 foam Substances 0.000 description 10
- 230000003139 buffering effect Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920000271 Kevlar® Polymers 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000004761 kevlar Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/4436—Heat resistant
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4486—Protective covering
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention provides a flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable and a production method thereof, and relates to the field of optical cables. The flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable comprises an inner protection foaming layer, wherein round holes are formed in the inner surface of the inner protection foaming layer. Through the outside extrusion one deck polytetrafluoroethylene material in interior foaming layer to add the elastic lamina layer, increase the anti bending capability of optical cable, simultaneously because of polytetrafluoroethylene has extremely low coefficient of friction, this design can make butterfly-shaped optical cable when poling construction with pipeline inner wall frictional resistance littleer, the construction is more convenient fast, and cooperate with elastic fiber, further increase the protection to communication optical fiber unit, fill the carbon black powder material that has adsorbed saturated nitrogen when through producing the foaming sheath, carbon black can release a large amount of nitrogen gas of absorption, simultaneously because of its inside is nitrogen gas foaming technology, whole optical cable has formed nitrogen gas inert gas atmosphere space, reach the physical flame retardant efficiency.
Description
Technical Field
The invention relates to the technical field of optical cables, in particular to a flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable and a production method thereof.
Background
With the high-speed development of 5G network construction, FTTx network construction is continuously accelerated, and the lead-in optical cable of the terminal faces various more complex application scenes during construction application, and meanwhile, the problems of flame retardance, low smoke, no toxicity, environmental protection, good bending performance, strong compression resistance, convenience in construction and the like of the lead-in optical cable are required to be solved. The pressure-resistant butterfly-shaped optical cable is an optical cable product for optical fiber communication, and is characterized by having stronger pressure-resistant capability, and being suitable for being installed in environments needing to bear certain pressure, such as underground, bridges, tunnels and the like. The pressure-resistant butterfly-shaped optical cable generally adopts the following technical scheme: reinforced core material: the high-strength core materials such as Kevlar and glass fiber can be used for enhancing the tensile and compressive properties of the optical cable and protecting the optical fiber from external extrusion and pressure. Sheath material: the high-strength, wear-resistant, waterproof and anti-corrosion material is used as the sheath of the optical cable, so that the optical fiber inside the optical cable can be effectively protected from the influence of external pores and environment. Butterfly structure: the butterfly-shaped structural design is adopted, so that the transverse dimension of the optical cable is smaller, the compressive property and applicability of the optical cable are improved, meanwhile, the stress of the optical cable in bending is reduced, and the damage of the optical fiber is avoided. A shielding layer: the shielding layer is added outside the sheath material, so that the waterproof, dustproof and anticorrosive performances of the optical cable can be further improved, and the service life of the optical cable is prolonged.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable and a production method thereof, and solves the problems of poor bending performance and high friction.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: a flexible physical flame retardant low friction pressure resistant butterfly cable comprising:
the inner surface of the inner foam protection layer is provided with round holes, elastic fibers are fixedly connected to the inner surface of the round holes, the elastic fibers are distributed in an annular array, one end of each elastic fiber, which is far away from the inner foam protection layer, is provided with a communication optical fiber unit, a cavity is formed in the inner foam protection layer, and an adsorption material is arranged in the cavity;
the outer surface fixedly connected with protective sheath of interior foaming layer, the inside fixedly connected with flexible enhancement layer of protective sheath, the inside fixedly connected with elasticity lamina of protective sheath, communication optical fiber unit surface is provided with the recess.
Preferably, gaps are formed among the elastic fibers, the elastic sheet layers and the protective sleeves are distributed at intervals, and the elastic sheet layers and the protective sleeves are distributed in an annular mode.
Preferably, the adsorption material is carbon black, the number of the cavities is multiple and distributed annularly, the inner surface of the inner foam protection layer extends to the inside of the groove, the number of the grooves is multiple and distributed front and back, and the diameter of the cavities is 3-5 mm.
A flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable production method comprises the following steps:
s1, selecting a communication optical fiber unit insensitive to bending, and implanting elastic fibers on the outer surface of the communication optical fiber unit;
s2, extruding an inner hair care foam layer on the surface of the optical fiber through a nitrogen foaming process of an extruding machine;
s3, filling carbon black powder which is saturated and absorbs nitrogen into the foaming material while extruding the inner protective foaming layer;
s4, finally extruding a polytetrafluoroethylene protective sleeve on the surface of the inner protective foaming layer;
s5, placing the flexible reinforcing layer and the elastic sheet layer in the process of extruding the polytetrafluoroethylene protective sleeve.
Preferably, the communication optical fiber unit model is (G.657A1/G.657A2/B3).
Preferably, the elastic fiber is polymerized by cellulose and other polysaccharides, and mainly exists in plants such as rubber trees, rubber, flax and the like, and the elastic cellulose has stretchability and rebound resilience, so that the fiber can elastically deform back and forth between stretching and relaxing.
Preferably, the main steps of the nitrogen foaming process are as follows: raw material matching: according to the requirements of products, various raw materials are mixed according to a certain proportion; mixing: putting the raw materials into a stirrer, adding nitrogen, and mixing to ensure that the raw materials and the nitrogen are fully and uniformly mixed; hot pressing: putting the mixed raw materials into a mould, and carrying out hot pressing treatment to enable the raw materials to chemically react at high temperature and high pressure; expansion: during hot pressing, nitrogen is gradually released in the raw materials to expand the raw materials to form foam materials; and (3) cooling: and cooling the prepared foam material, and solidifying and forming the foam material to obtain the final product.
Preferably, the elastic sheet is a structural layer made of a plurality of layers of elastic materials which are staggered, and is commonly used in floor pavement, and can be used as a damping and buffering material for effectively reducing noise and vibration of the floor.
(III) beneficial effects
The invention provides a flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable and a production method thereof. The beneficial effects are as follows:
1. through the outside extrusion one deck polytetrafluoroethylene material in interior foaming layer to add the elastic sheet layer, increase the anti bending capability of optical cable, simultaneously because of polytetrafluoroethylene has extremely low coefficient of friction, this design can make butterfly-shaped optical cable with pipeline inner wall frictional resistance littleer when poling construction, the construction is more convenient fast, and cooperates with elastic fiber, further increases the protection to communication optical fiber unit.
2. Carbon black powder materials which are adsorbed with saturated nitrogen are filled in the process of producing the foaming sheath, and the carbon black can release a large amount of adsorbed nitrogen, and meanwhile, the whole optical cable forms a nitrogen inert gas atmosphere space due to the fact that the inside of the carbon black is a nitrogen foaming process, so that continuous combustion of the optical cable can be well hindered, and a physical flame retardant effect is achieved.
Drawings
FIG. 1 is a side view of the present invention;
FIG. 2 is a schematic diagram of the overall structure of the present invention;
FIG. 3 is a schematic view of a flexible reinforcement layer structure according to the present invention;
FIG. 4 is a schematic view of the structure of an elastic laminate according to the present invention.
Wherein, 1, an inner hair care foam layer; 2. a protective sleeve; 3. an elastic sheet layer; 4. a flexible reinforcing layer; 5. a cavity; 6. an adsorption material; 7. a communication optical fiber unit; 8. a round hole; 9. an elastic fiber; 10. a void; 11. a groove.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
as shown in fig. 1-4, the embodiment of the invention provides a flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable, which comprises an inner protection foaming layer 1, wherein round holes 8 are formed in the inner surface of the inner protection foaming layer 1, elastic fibers 9 are fixedly connected to the inner surface of the round holes 8, gaps 10 are formed among the elastic fibers 9, the elastic sheet layers 3 and the protective sleeves 2 are distributed at intervals, the elastic sheet layers 3 and the protective sleeves 2 are distributed in an annular array, communication optical fiber units 7 are arranged at one ends of the elastic fibers 9 far away from the inner protection foaming layer 1, cavities 5 are formed in the inner protection foaming layer 1, adsorbing materials 6 are made of carbon black, the number of the cavities 5 is multiple and distributed in an annular mode, the inner surface of the inner protection foaming layer 1 extends to the inner part of grooves 11, the number of the grooves 11 are multiple and distributed front and back, and the diameter of the cavities 5 is 5 mm.
The surface fixedly connected with protective sheath 2 of interior foaming layer 1, the inside fixedly connected with flexible enhancement layer 4 of protective sheath 2, the inside fixedly connected with elasticity lamina 3 of protective sheath 2, communication optical fiber unit 7 surface is provided with recess 11 for increase the support of interior foaming layer 1 to communication optical fiber unit 7.
A flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable production method comprises the following steps:
s1, selecting a bending insensitive communication optical fiber unit 7, wherein the model of the communication optical fiber unit 7 is G.657A1/G.657A2/B3, implanting elastic fibers 9 on the outer surface of the communication optical fiber unit 7, wherein the elastic fibers 9 are formed by polymerizing cellulose and other polysaccharides and mainly exist in plants such as rubber trees, rubber, flax and the like, the elastic fibers 9 have stretchability and rebound resilience, the fibers can be elastically deformed back and forth between stretching and loosening, S2, an inner protective foaming layer 1 is extruded on the surface of the optical fiber through a nitrogen foaming process of an extruder, and the nitrogen foaming process mainly comprises the following steps: raw material matching: according to the requirements of products, various raw materials are mixed according to a certain proportion; mixing: putting the raw materials into a stirrer, adding nitrogen, and mixing to ensure that the raw materials and the nitrogen are fully and uniformly mixed; hot pressing: putting the mixed raw materials into a mould, and carrying out hot pressing treatment to enable the raw materials to chemically react at high temperature and high pressure; expansion: during hot pressing, nitrogen is gradually released in the raw materials to expand the raw materials to form foam materials; and (3) cooling: the foam material is cooled and solidified to obtain the final product, S3, carbon black powder which is saturated and absorbed with nitrogen is filled into the foam material while the inner protective foam layer 1 is extruded, S4, finally, a polytetrafluoroethylene protective sleeve 2 is extruded on the surface of the inner protective foam layer 1, S5, a flexible reinforcing layer 4 and an elastic sheet layer 3 are placed in the process of extruding the polytetrafluoroethylene protective sleeve 2, the elastic sheet layer 3 is a structural layer made of a plurality of layers of elastic materials which are arranged in a staggered manner, and is usually used in ground pavement and used as a damping and buffering material, so that noise and vibration of the ground can be effectively reduced, and high-quality elastic materials such as rubber, polyurethane, polyethylene and the like are selected and mixed and processed according to a certain proportion.
Embodiment two:
as shown in fig. 1-4, the embodiment of the invention provides a flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable, which comprises an inner protection foaming layer 1, wherein round holes 8 are formed in the inner surface of the inner protection foaming layer 1, elastic fibers 9 are fixedly connected to the inner surface of the round holes 8, gaps 10 are formed among the elastic fibers 9, the elastic sheet layers 3 and the protective sleeves 2 are distributed at intervals, the elastic sheet layers 3 and the protective sleeves 2 are distributed in an annular array, communication optical fiber units 7 are arranged at one ends of the elastic fibers 9 far away from the inner protection foaming layer 1, cavities 5 are formed in the inner protection foaming layer 1, adsorbing materials 6 are made of carbon black, the number of the cavities 5 is multiple and distributed in an annular mode, the inner surface of the inner protection foaming layer 1 extends to the inner part of grooves 11, the number of the grooves 11 are multiple and distributed front and back, and the diameter of the cavities 5 is 3 mm.
The surface fixedly connected with protective sheath 2 of interior foaming layer 1, the inside fixedly connected with flexible enhancement layer 4 of protective sheath 2, the inside fixedly connected with elasticity lamina 3 of protective sheath 2, communication optical fiber unit 7 surface is provided with recess 11 for increase the support of interior foaming layer 1 to communication optical fiber unit 7.
A flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable production method comprises the following steps:
s1, selecting a bending insensitive communication optical fiber unit 7, wherein the model of the communication optical fiber unit 7 is G.657A1/G.657A2/B3, implanting elastic fibers 9 on the outer surface of the communication optical fiber unit 7, wherein the elastic fibers 9 are formed by polymerizing cellulose and other polysaccharides and mainly exist in plants such as rubber trees, rubber, flax and the like, the elastic fibers 9 have stretchability and rebound resilience, the fibers can be elastically deformed back and forth between stretching and loosening, S2, an inner protective foaming layer 1 is extruded on the surface of the optical fiber through a nitrogen foaming process of an extruder, and the nitrogen foaming process mainly comprises the following steps: raw material matching: according to the requirements of products, various raw materials are mixed according to a certain proportion; mixing: putting the raw materials into a stirrer, adding nitrogen, and mixing to ensure that the raw materials and the nitrogen are fully and uniformly mixed; hot pressing: putting the mixed raw materials into a mould, and carrying out hot pressing treatment to enable the raw materials to chemically react at high temperature and high pressure; expansion: during hot pressing, nitrogen is gradually released in the raw materials to expand the raw materials to form foam materials; and (3) cooling: the foam material is cooled and solidified to obtain the final product, S3, carbon black powder which is saturated and absorbed with nitrogen is filled into the foam material while the inner protective foam layer 1 is extruded, S4, finally, a polytetrafluoroethylene protective sleeve 2 is extruded on the surface of the inner protective foam layer 1, S5, a flexible reinforcing layer 4 and an elastic sheet layer 3 are placed in the process of extruding the polytetrafluoroethylene protective sleeve 2, the elastic sheet layer 3 is a structural layer made of a plurality of layers of elastic materials which are arranged in a staggered manner, and is usually used in ground pavement and used as a damping and buffering material, so that noise and vibration of the ground can be effectively reduced, and high-quality elastic materials such as rubber, polyurethane, polyethylene and the like are selected and mixed and processed according to a certain proportion.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A flexible, physical, flame retardant, low friction, pressure resistant butterfly cable comprising:
the inner protection foaming layer (1), the inner surface of the inner protection foaming layer (1) is provided with round holes (8), elastic fibers (9) are fixedly connected to the inner surface of the round holes (8), the elastic fibers (9) are distributed in an annular array, one end, far away from the inner protection foaming layer (1), of each elastic fiber (9) is provided with a communication optical fiber unit (7), a cavity (5) is formed in the inner protection foaming layer (1), and an adsorption material (6) is arranged in the cavity (5);
the outer surface fixedly connected with protective sheath (2) of interior foaming layer (1), the inside fixedly connected with flexible enhancement layer (4) of protective sheath (2), the inside fixedly connected with elasticity lamina (3) of protective sheath (2), communication optical fiber unit (7) surface is provided with recess (11).
2. A flexible physical flame retardant low friction pressure resistant butterfly cable according to claim 1, wherein: the elastic fiber (9) is provided with gaps (10), the elastic sheet layers (3) and the protective sleeves (2) are distributed at intervals, and the elastic sheet layers (3) and the protective sleeves (2) are distributed in an annular mode.
3. A flexible physical flame retardant low friction pressure resistant butterfly cable according to claim 1, wherein: the adsorption material (6) is made of carbon black, the number of the cavities (5) is multiple and distributed in an annular mode, the inner surface of the inner protection foaming layer (1) extends to the inside of the groove (11), the number of the grooves (11) is multiple and distributed front and back, and the diameter of the cavities (5) is 3-5 mm.
4. A flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable production method is characterized by comprising the following steps of: the method comprises the following steps:
s1, selecting a communication optical fiber unit (7) insensitive to bending, and implanting elastic fibers (9) on the outer surface of the communication optical fiber unit (7);
s2, extruding an inner protective foaming layer (1) on the surface of the optical fiber through a nitrogen foaming process of an extruder;
s3, filling carbon black powder which is saturated and absorbed with nitrogen into the foaming material while extruding the inner protective foaming layer (1);
s4, finally extruding a polytetrafluoroethylene protective sleeve (2) on the surface of the inner protective foaming layer (1);
s5, placing the flexible reinforcing layer (4) and the elastic sheet layer (3) in the process of extruding the polytetrafluoroethylene protective sleeve (2).
5. The method for producing the flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable according to claim 4, which is characterized in that: the model number of the communication optical fiber unit (7) is (G.657A1/G.657A2/B3).
6. The method for producing the flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable according to claim 4, which is characterized in that: the elastic fiber (9) is polymerized by cellulose and other polysaccharides, is mainly present in plants such as rubber trees, rubber, flax and the like, and the elastic fiber (9) has stretchability and rebound resilience.
7. The method for producing the flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable according to claim 4, which is characterized in that: the nitrogen foaming process mainly comprises the following steps: raw material matching: according to the requirements of products, various raw materials are mixed according to a certain proportion; mixing: putting the raw materials into a stirrer, adding nitrogen, and mixing to ensure that the raw materials and the nitrogen are fully and uniformly mixed; hot pressing: putting the mixed raw materials into a mould, and carrying out hot pressing treatment to enable the raw materials to chemically react at high temperature and high pressure; expansion: during hot pressing, nitrogen is gradually released in the raw materials to expand the raw materials to form foam materials; and (3) cooling: and cooling the prepared foam material, and solidifying and forming the foam material to obtain the final product.
8. The method for producing the flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable according to claim 4, which is characterized in that: the elastic sheet layer (3) is a structural layer made of a plurality of layers of elastic materials which are arranged in a staggered manner.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310520678.1A CN116679391A (en) | 2023-05-10 | 2023-05-10 | Flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310520678.1A CN116679391A (en) | 2023-05-10 | 2023-05-10 | Flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable and production method thereof |
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| CN116679391A true CN116679391A (en) | 2023-09-01 |
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| CN202310520678.1A Pending CN116679391A (en) | 2023-05-10 | 2023-05-10 | Flexible physical flame-retardant low-friction compression-resistant butterfly-shaped optical cable and production method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117092771A (en) * | 2023-10-20 | 2023-11-21 | 南京华信藤仓光通信有限公司 | Reinforced self-supporting butterfly-shaped optical cable |
-
2023
- 2023-05-10 CN CN202310520678.1A patent/CN116679391A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117092771A (en) * | 2023-10-20 | 2023-11-21 | 南京华信藤仓光通信有限公司 | Reinforced self-supporting butterfly-shaped optical cable |
| CN117092771B (en) * | 2023-10-20 | 2023-12-22 | 南京华信藤仓光通信有限公司 | Reinforced self-supporting butterfly-shaped optical cable |
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