CN110596838A - Anti-ice anti-aging self-supporting optical cable - Google Patents
Anti-ice anti-aging self-supporting optical cable Download PDFInfo
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- CN110596838A CN110596838A CN201911044240.0A CN201911044240A CN110596838A CN 110596838 A CN110596838 A CN 110596838A CN 201911044240 A CN201911044240 A CN 201911044240A CN 110596838 A CN110596838 A CN 110596838A
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- 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
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
-
- 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
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The application provides an anti-icing ageing resistance self-supporting optical cable, include the cable core, in proper order the cladding at the outer first band layer of cable core, interior sheath, nonmetal enhancement layer, second band layer, outer jacket, the cable core in set up central reinforcement, wind the many loose tubes that central reinforcement set up, loose tube between fill and have the cable cream, loose tube in be equipped with many optic fibre, loose tube intussuseption is filled with fine cream, its characterized in that, first band layer, second band layer, interior sheath, outer jacket in contain the phase transition material. The utility model provides an anti-ice ageing resistance self-supporting optical cable wraps up the band that the one deck contains phase transition material on cable core and nonmetal enhancement layer, also sneaks into the phase transition material of suitable proportion in the sheath polyethylene, and when the external temperature changes, phase transition material is through absorbing and releasing the heat for the temperature of optical cable keeps near phase transition material's phase transition temperature.
Description
Technical Field
The application relates to an anti-ice anti-aging self-supporting optical cable.
Background
With the continuous development of optical network fiber to the home and the beginning construction of the current 5G network, the speed requirement of the user on the network is higher and higher. In the construction of optical network long-distance communication and interoffice communication, the all-dielectric self-supporting optical cable is favored because of the characteristic that the all-dielectric self-supporting optical cable can be laid overhead by utilizing the existing electric power tower. Self-supporting optical cable can't avoid when the optical network construction, and the aerial laying is carried out in some areas that the difference in temperature is very big round the clock, and when ambient temperature was low, the optical cable temperature reduced thereupon, and the water that adheres to on the optical cable surface will condense into ice, increases the optical cable dead weight, makes the probability that the optical cable broke down rise, and consequently the anti-icing ability of self-supporting optical cable is especially important. When the external environment temperature changes, the temperature of the optical cable is circulated between high temperature and low temperature, so that the aging speed of various materials in the optical cable is accelerated, and the service life of the optical cable is shortened.
Disclosure of Invention
The technical problem that this application will be solved provides an anti-ice ageing resistance self-supporting optical cable.
In order to solve the technical problem, the application provides an anti-ice ageing resistance self-supporting optical cable, the optical cable include the cable core, in proper order the cladding first band layer, interior sheath, nonmetal enhancement layer, second band layer, the outer jacket outside the cable core, the cable core in set up central reinforcement, wind many loose tubes that central reinforcement set up, loose tube between pack and have the cable cream, loose tube in be equipped with many optic fibre, loose tube intussuseption is filled with fine cream, its characterized in that, first band layer, second band layer, interior sheath in contain phase transition material.
Preferably, the solid-liquid phase transition temperature of the phase transition material is 0-10 ℃.
Preferably, the inner protective layer and the outer protective layer comprise a porous fiber material and a phase transition material, the weight ratio of the porous fiber material to the phase transition material is (8-9) to 1, the phase transition material is adsorbed in pores of the porous fiber material in a liquid phase, and a waterproof film is arranged on the surface of the porous fiber material adsorbing the phase transition material in the liquid phase.
Preferably, the phase change material is an inorganic phase change material or an organic phase change material or a composite phase change material.
Preferably, the first wrapping belt and the second wrapping belt comprise two layers of non-woven polyester fiber cloth, and a phase transition material is filled between the two layers of non-woven polyester fiber cloth.
Preferably, the first wrapping tape and the second wrapping tape are formed by pressing after phase-change materials are coated on the opposite surfaces of the two layers of non-woven polyester fiber cloth in a liquid phase.
Preferably, the non-metallic reinforcing layer is aramid fiber or glass fiber yarn or glass fiber tape.
Preferably, the coating of optical fiber surface has the coating that blocks water, loose cover outside of tubes still the cladding have interior flame retardant coating, interior flame retardant coating outer cladding have interior sheath, interior sheath cladding has insulating layer and outer flame retardant coating outward in proper order, outer flame retardant coating extrusion molding cladding outer sheath, interior sheath material is the fire-retardant polyolefin of pottery, the insulating layer material is fire-retardant glass fiber band, still be equipped with aerogel layer between insulating layer and the outer flame retardant coating, aerogel layer material is phenolic resin-silica aerogel.
Preferably, the water-blocking coating is obtained by coating a water-blocking coating on the surface of the optical fiber and then drying the coating, and the water-blocking coating comprises, by mass, 30-40 parts of ethyl cellulose, 10-20 parts of phenolic resin, 10-15 parts of polyphosphate, 10-15 parts of epoxy resin, 15-20 parts of polyvinylpyrrolidone, 5-10 parts of polyvinyl alcohol, 10-20 parts of polyacrylate, 40-60 parts of a solvent and 5-10 parts of castor oil, wherein the solvent comprises one or more of xylene, ethanol, butanol and acetone, and the molecular weight of the ethyl cellulose and the polyacrylate is 5-10 kg/mol; the molecular weight of the phenolic resin, the polyphosphate ester and the epoxy resin is 10-20 kg/mol.
Preferably, the central reinforcing part is a glass fiber reinforced rod, the surface of the glass fiber reinforced rod is provided with a plurality of concave-convex textures, and the glass fiber reinforced rod is made of, by mass, 10-40 parts of glass fiber, 50-90 parts of polyphenylene sulfide and 50-90 parts of polycarbonate.
The utility model provides an anti-ice ageing resistance self-supporting optical cable, the band that the parcel one deck contains phase transition material on cable core and non-metallic reinforcement layer, also mix the phase transition material of suitable proportion in the sheath polyethylene, when the ambient temperature changes, phase transition material is through absorbing and releasing the heat, make the temperature of optical cable keep near phase transition material's phase transition temperature, can not be along with ambient temperature constantly transform, the ageing speed of the various materials of optical cable has been delayed greatly, the life of extension optical cable. The phase transition temperature of the selected phase transition material is 0-10 ℃, so that the temperature of the optical cable is kept above 0 ℃, water attached to the outer protective layer of the optical cable cannot be condensed into ice, and the ice resistance of the optical cable is greatly enhanced.
Drawings
Fig. 1 is a schematic structural diagram of an ice-resistant and aging-resistant self-supporting optical cable.
1-a first wrapping layer; 2-an optical fiber; 3-fiber paste; 4-loosening the sleeve; 5-a central reinforcement; 6-a second band layer; 7-cable paste; 8-inner sheath layer; 9-a non-metallic reinforcement layer; 10-outer sheath.
Detailed Description
The present application is further described below in conjunction with the following figures and specific examples to enable those skilled in the art to better understand the present application and to practice it, but the examples are not intended to limit the present application.
Example 1
Referring to the accompanying drawing 1, the application provides an ice-resistant and aging-resistant self-supporting optical cable, which comprises a cable core, a first wrapping layer, an inner protection layer, a non-metal reinforcing layer, a second wrapping layer and an outer protection layer, wherein the first wrapping layer, the inner protection layer, the non-metal reinforcing layer, the second wrapping layer and the outer protection layer are sequentially wrapped outside the cable core, a central reinforcing member and a plurality of loose tubes arranged around the central reinforcing member are arranged in the cable core, cable paste is filled between the loose tubes, a plurality of optical fibers are arranged in the loose tubes, and fiber paste is filled in the loose tubes. The non-metal reinforcing layer is aramid fiber or glass fiber yarn or a glass fiber belt.
The solid-liquid phase change temperature of the phase change material is 0-10 ℃. The phase transition material is an inorganic phase change material or an organic phase change material or a composite phase change material. The phase transition material in this embodiment may be a hydrocarbon having a melting point of 0 to 10 ℃, or a mixture of paraffin wax and hydrocarbon or linseed oil having a melting point of 0 to 10 ℃.
The inner protection layer and the outer protection layer comprise porous fiber materials and phase transition materials, the weight ratio of the porous fiber materials to the phase transition materials is (8-9) to 1, the phase transition materials are adsorbed in pores of the porous fiber materials in a liquid phase, and waterproof films are arranged on the surfaces of the porous fiber materials adsorbing the phase transition materials in the liquid phase. Taking paraffin mixture as an example, the production method of the inner protective layer and the outer protective layer comprises the following steps: (1) in the molecular formula C17H36The paraffin is added with the linseed oil, and the mass ratio of the paraffin to the linseed oil is as follows: 2: 7; (2) heating to 60-70 deg.C to dissolve paraffin in oleum Lini to obtain paraffin mixture with melting point of 5.5 deg.C, which is also liquid at room temperature; (3) coating the liquid paraffin mixture on the surface of the porous fiber material to enable the paraffin mixture to be absorbed by the porous fiber material; (4) the surface of the porous fiber material absorbed with the paraffin mixture is covered with a waterproof film to form the inner protective layer and the outer protective layer.
The first wrapping belt and the second wrapping belt comprise two layers of non-woven polyester fiber cloth, and a phase transition material is filled between the two layers of non-woven polyester fiber cloth. The first wrapping tape and the second wrapping tape are formed by pressing after phase transition materials are coated on the opposite surfaces of the two layers of non-woven polyester fiber cloth in a liquid phase. Taking the phase-change material as an example of paraffin wax mixture, the first wrapping tape and the second wrapping tape are produced by coating liquid paraffin wax mixture on the opposite surfaces of two layers of non-woven polyester fiber cloth and then pressing to form the first wrapping tape and the second wrapping tape.
The optical cable in this embodiment also has the following advantages: the optical cable of this embodiment wraps up the band that the one deck contains phase transition material on cable core and non-metal reinforcement layer, also mixes the phase transition material of suitable proportion in the sheath polyethylene, and when the external temperature changes, phase transition material is through absorbing and releasing the heat for the temperature of optical cable keeps near phase transition material's phase transition temperature, can not constantly alternate along with ambient temperature, has delayed the ageing speed of various materials of optical cable greatly, prolongs the life of optical cable. The phase transition temperature of the selected phase transition material is 0-10 ℃, so that the temperature of the optical cable is kept above 0 ℃, water attached to the outer protective layer of the optical cable cannot be condensed into ice, and the ice resistance of the optical cable is greatly enhanced.
The phase transition material is adsorbed in the pores of the porous fiber material in a liquid phase, and is in a liquid state and adsorbed in the porous fiber material when the air temperature is higher; when the air temperature is reduced, the phase transition material component is converted into a solid state and is adhered in the pores of the porous fiber material, and the phase transition material is attached to the porous fiber material no matter in the liquid state or the solid state, so that the phenomenon of uneven distribution caused by flowing can not occur.
In the prior art, the volume of the phase transition material can change due to the phase transition, which causes the swelling of the coating layer and affects the product quality. In the application, the phase transition material is adsorbed in the pores of the porous fiber material, and the pores provide enough expansion space for the phase transition material, so that the cable can be prevented from bulging.
The porous fiber material is of a porous structure, has a good heat insulation effect, and heat emitted by the phase change material from the liquid state to the solid state in-process can be stored in the cable, so that the cable can slowly release heat, and the rapid consumption of the heat emitted by the phase change material is avoided. Further enhancing the ice resistance of the optical cable.
The band and the sheath of this application all have two-layerly, and when ambient temperature reduced, phase transition material can take place the phase transition from outside to inside gradually, and the heat is emitted gradually, has avoided phase transition material to emit the heat rapidly, makes the heat consume fast for the temperature of optical cable keeps more than 0 ℃.
Example two
The optic fibre of this embodiment lies in with the difference of embodiment one, the coating of optical fiber surface has the coating that blocks water, the pine cover outside of tubes still the cladding have interior flame retardant coating, the outer cladding of interior flame retardant coating have interior sheath, interior sheath cladding has insulating layer and outer flame retardant coating outward in proper order, outer flame retardant coating extrusion molding cladding outer sheath, interior sheath material is the fire-retardant polyolefin of pottery ization, insulating layer material is fire-retardant glass fiber band, still be equipped with aerogel layer between insulating layer and the outer flame retardant coating, aerogel layer material is phenol-formaldehyde resin-silica aerogel. The water-blocking coating is obtained by coating water-blocking coating on the surface of the optical fiber and then drying, and comprises, by mass, 40 parts of ethyl cellulose, 20 parts of phenolic resin, 15 parts of polyphosphate, 15 parts of epoxy resin, 20 parts of polyvinylpyrrolidone, 10 parts of polyvinyl alcohol, 20 parts of polyacrylate, 60 parts of solvent and 10 parts of castor oil, wherein the solvent can comprise one or more of xylene, ethanol, butanol and acetone, and the molecular weights of the ethyl cellulose and the polyacrylate are 10 kg/mol; the molecular weight of the phenolic resin, the polyphosphate ester and the epoxy resin is 20 kg/mol. The central reinforcing part is a glass fiber reinforcing rod, a plurality of concave-convex textures are arranged on the surface of the glass fiber reinforcing rod, and the glass fiber reinforcing rod is made of 40 parts by mass of glass fiber, 90 parts by mass of polyphenylene sulfide and 90 parts by mass of polycarbonate.
EXAMPLE III
The optical cable in the embodiment is different from the second embodiment in that the water-blocking coating is obtained by coating a water-blocking coating on the surface of the optical fiber and then drying the optical fiber, wherein the water-blocking coating comprises, by mass, 30 parts of ethyl cellulose, 10 parts of phenolic resin, 10 parts of polyphosphate, 10 parts of epoxy resin, 15 parts of polyvinylpyrrolidone, 5 parts of polyvinyl alcohol, 10 parts of polyacrylate, 40 parts of a solvent and 5 parts of castor oil, the solvent can comprise one or more of xylene, ethanol, butanol and acetone, and the molecular weight of the ethyl cellulose and the polyacrylate is 5 kg/mol; the molecular weight of the phenolic resin, the polyphosphate ester and the epoxy resin is 10 kg/mol. The central reinforcing part is a glass fiber reinforcing rod, a plurality of concave-convex textures are arranged on the surface of the glass fiber reinforcing rod, and the glass fiber reinforcing rod is made of 10 parts by mass of glass fiber, 50 parts by mass of polyphenylene sulfide and 50 parts by mass of polycarbonate.
The optical cable described in the second and third embodiments further has the following advantages: by coating the water-blocking coating on the surface of the optical fiber and filling the water-blocking resin between the loose tubes, the using amount of the water-blocking material in the optical cable is increased, and the improvement of the water-blocking property of the optical cable is facilitated. The optical cable is made of nonmetal materials, has the effects of lightning protection and electromagnetic interference resistance, and is particularly suitable for places such as communication machine rooms and data centers.
The above-described embodiments are merely preferred embodiments for fully illustrating the present application, and the scope of the present application is not limited thereto. The equivalent substitution or change made by the person skilled in the art on the basis of the present application is within the protection scope of the present application. The protection scope of this application is subject to the claims.
Claims (10)
1. The utility model provides an anti-icing ageing resistance self-supporting optical cable, the optical cable include the cable core, in proper order the cladding at the cable core outside first band layer, interior sheath, nonmetal enhancement layer, second band layer, outer jacket, the cable core in set up central reinforcement, around many loose tubes that central reinforcement set up, loose tube between fill and have the cable cream, loose tube in be equipped with many optic fibre, loose tube intussuseption is filled with fine cream, its characterized in that, first band layer, second band layer, interior sheath, outer jacket in contain phase transition material.
2. The ice and aging resistant self-supporting optical cable as claimed in claim 1, wherein the phase transition material has a solid-liquid phase transition temperature of 0 to 10 ℃.
3. The ice and aging resistant self-supporting optical cable as claimed in claim 2, wherein the inner sheath and the outer sheath comprise a porous fiber material and a phase transition material, the weight ratio of the porous fiber material to the phase transition material is (8-9) to 1, the phase transition material is adsorbed in pores of the porous fiber material in a liquid phase, and a waterproof film is provided on a surface of the porous fiber material on which the phase transition material in the liquid phase is adsorbed.
4. The ice and aging resistant self-supporting optical cable of claim 2, wherein the phase change material is an inorganic phase change material or an organic phase change material or a composite phase change material.
5. The ice and aging resistant self-supporting optical cable of claim 4, wherein the first and second wrapping bands comprise two layers of non-woven polyester fiber cloth with a phase transition material filled therebetween.
6. The ice and aging resistant self-supporting optical cable of claim 5, wherein the first and second wrapping tapes are formed by coating a phase change material in a liquid phase on opposite surfaces of two layers of non-woven polyester fiber cloth and then pressing the two layers together.
7. The ice and aging resistant self-supporting optical cable of claim 1, wherein the non-metallic reinforcing layer is aramid fiber or glass fiber yarn or glass fiber tape.
8. The ice-resistant anti-aging self-supporting optical cable according to claim 1, wherein the optical fiber surface is coated with a water-blocking coating, the loose tube is further coated with an inner flame retardant coating, the inner flame retardant coating is coated with an inner protective layer, the inner protective layer is sequentially coated with a heat insulation layer and an outer flame retardant coating, the outer flame retardant coating is extruded and coated with an outer protective layer, the inner protective layer is made of ceramic flame-retardant polyolefin, the heat insulation layer is made of flame-retardant glass fiber tape, an aerogel layer is further arranged between the heat insulation layer and the outer flame retardant coating, and the aerogel layer is made of phenolic resin-silica aerogel.
9. The ice-resistant anti-aging self-supporting optical cable as claimed in claim 8, wherein the water-blocking coating is obtained by coating a water-blocking coating on the surface of the optical fiber and then drying the coating, and the water-blocking coating comprises 30-40 parts by mass of ethyl cellulose, 10-20 parts by mass of phenolic resin, 10-15 parts by mass of polyphosphate, 10-15 parts by mass of epoxy resin, 15-20 parts by mass of polyvinylpyrrolidone, 5-10 parts by mass of polyvinyl alcohol, 10-20 parts by mass of polyacrylate, 40-60 parts by mass of a solvent and 5-10 parts by mass of castor oil, wherein the solvent comprises one or more of xylene, ethanol, butanol and acetone, and the molecular weights of the ethyl cellulose and the polyacrylate are 5-10 kg/mol; the molecular weight of the phenolic resin, the polyphosphate ester and the epoxy resin is 10-20 kg/mol.
10. The ice-resistant and aging-resistant self-supporting optical cable of claim 8, wherein the central strength member is a glass fiber reinforced rod, the surface of the glass fiber reinforced rod is provided with a plurality of concave-convex textures, and the glass fiber reinforced rod is made of, by mass, 10-40 parts of glass fiber, 50-90 parts of polyphenylene sulfide and 50-90 parts of polycarbonate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911044240.0A CN110596838B (en) | 2019-10-30 | 2019-10-30 | Anti-ice anti-aging self-supporting optical cable |
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| CN201911044240.0A CN110596838B (en) | 2019-10-30 | 2019-10-30 | Anti-ice anti-aging self-supporting optical cable |
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| CN110596838A true CN110596838A (en) | 2019-12-20 |
| CN110596838B CN110596838B (en) | 2020-06-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115933083A (en) * | 2022-12-05 | 2023-04-07 | 江苏巨量光电科技有限公司 | All-dielectric self-supporting optical cable with anti-electricity structure and processing technology thereof |
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| CN110596838B (en) | 2020-06-09 |
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