CN104049330A - High temperature resistance multimode special optical fiber for aviation and manufacturing method thereof - Google Patents
High temperature resistance multimode special optical fiber for aviation and manufacturing method thereof Download PDFInfo
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- CN104049330A CN104049330A CN201410320823.2A CN201410320823A CN104049330A CN 104049330 A CN104049330 A CN 104049330A CN 201410320823 A CN201410320823 A CN 201410320823A CN 104049330 A CN104049330 A CN 104049330A
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Abstract
The invention provides a high temperature resistance multimode special optical fiber for aviation and a manufacturing process of the optical fiber. The optical fiber structurally comprises a fiber core, an ultraviolet curing acrylic ester coating layer, an ethylene tetrafluoroethylene copolymer tight cladding, an aromatic polyamide fiber reinforcing layer and an ethylene tetrafluoroethylene copolymer restrictive coating. According to the manufacturing process, the fiber core of the optical fiber is a multimode, the coating layer is coated through the special ultraviolet curing acrylic ester, and the temperature of which the coating layer can withstand ranges from -55 DEG C to +125 DEG C. The outer diameter of the coating layer is 245 micron. According to the tight cladding, a high temperature extrusion molding machine is adopted to extrude out the high temperature ethylene tetrafluoroethylene copolymer in a double-layered mode. The reinforcing layer is knitted through the aromatic polyamide fiber having high tension resistance performance. According to the restrictive coating, the high temperature extrusion molding machine is adopted to extrude out the ethylene tetrafluoroethylene copolymer. The optical fiber has the advantages that the high-low temperature of which the coating layer can withstand ranges from -55 DEG C to +125 DEG C, and the optical fiber is high in intensity, resistant to bending, impact and aging, long in service life, resistant to mucedine, high in flame retardant, capable of providing highly reliable services in the severe environment and suitable for high-speed signal transmission under special environmental conditions such as the aerospace or electron or airborne environment.
Description
Technical field
The present invention is high temperature resistant multimode special optical cable and preparation method thereof for aviation, product has the characteristics such as high-low temperature resistant (55 ℃～+ 125 ℃), high strength, resistance to bending, shock resistance, ageing-resistant, long-life, corrosion-resistant, resistance to mould, high flame retardant, can under rugged environment, provide highly reliable service, be applicable to the high speed transmission of signals under Aero-Space, electronics, airborne special environment condition.
Background technology
At present, common civil fiber optic cable field, the producer of domestic production is a lot, and technical merit is also very ripe.But the application at military domain optical cable is also in initial stage developing stage.Main cause is that military fiber optic cable is had relatively high expectations, and not only requires good environment and mechanical property, as specific (special) requirements such as high-low temperature resistant, high strength, shock resistance, resistance to bending, long-lives.So the material that military fiber optic cable is selected and manufacturing process and conventional civilian goods have very large difference.The application requirements of military products is considered in aviation just with high temperature resistant multimode special optical cable, take into full account its applicability and security, take into full account the Special use environmental requirements such as high low temperature, high strength, resistance to bending, shock resistance, ageing-resistant, long-life, corrosion-resistant, resistance to mould and high flame retardant.
Summary of the invention
That the present invention proposes is high temperature resistant multimode special optical cable and preparation technology thereof for a kind of aviation, and its object is intended to fiber core coat and adopts special ultra-violet curing acrylate-coated, than ordinary optic fibre fibre core, has improved heat resistance, and heatproof reaches 125 ℃; Hard-pressed bale layer adopts ethylene tetrafluoroethylene copolymer (ETFE), adopt individual layer thin-walled to extrude with double-layer thin wall and extrude two kinds of structures, improved the high and low temperature resistance (55 ℃～+ 125 ℃) of tight-buffered fiber optic cable, adopt the braiding enhancement Layer of polyamide fibre, improved the pull resistance of optical cable, adopt ethylene tetrafluoroethylene copolymer (ETFE) sheath, mechanical property and environmental resistance also improve greatly.
Technical solution of the present invention: high temperature resistant multimode special optical cable for aviation, is characterized in that comprising ultra-violet curing acrylate-coated layer, ethylene tetrafluoroethylene copolymer hard-pressed bale layer, aramid fibre enhancement Layer, the ethylene tetrafluoroethylene copolymer restrictive coating of fibre core, high temperature resistant-55 ℃～+ 125 ℃; Wherein the periphery of fibre core is the ultra-violet curing acrylate-coated layer of high temperature resistant-55 ℃～+ 125 ℃; The peripheral ethylene tetrafluoroethylene copolymer hard-pressed bale layer of the ultra-violet curing acrylate-coated layer of high temperature resistant-55 ℃～+ 125 ℃; The periphery of ethylene tetrafluoroethylene copolymer hard-pressed bale layer is aramid fibre enhancement Layer; The periphery of aramid fibre enhancement Layer is ethylene tetrafluoroethylene copolymer restrictive coating.
Its preparation method, comprises following technique:
1) fiber core is multimode, and structure is divided 50/125 μ m and 62.5/125 μ m;
2) with coating equipment, apply the ultra-violet curing acrylate of high temperature resistant-55 ℃～+ 125 ℃, in the periphery of fiber core, as coat, heatproof-55 ℃～+ 125 ℃, coat external diameter is 245 μ m;
3) adopt high temperature extruding machine individual layer or bilayer to extrude ethylene tetrafluoroethylene copolymer material, be wrapped in the periphery of coat as hard-pressed bale layer, heatproof-55 ℃～+ 125 ℃;
4) with high-speed knitter, weave aramid fibre, be wrapped in the periphery of hard-pressed bale layer, as enhancement Layer, meet stretching resistance 150N;
5) adopt high temperature extruding machine to extrude ethylene tetrafluoroethylene copolymer, be wrapped in the periphery of enhancement Layer as restrictive coating, heatproof-55 ℃～+ 125 ℃.
The present invention has the following advantages: 1) high temperature resistant: coat adopts special ultra-violet curing acrylate-coated, and hard-pressed bale sheath adopts ethylene tetrafluoroethylene copolymer (ETFE), and long-term maximum operating temperature can reach+and 125 ℃; 2) low temperature resistant: coat adopts special ultra-violet curing acrylate-coated, hard-pressed bale layer and restrictive coating adopt ethylene tetrafluoroethylene copolymer (ETFE), make can be at-55 ℃ normal laying installation of tightly packaged fiber, can solve general material because low temperature lays problems such as easily causing sclerosis, embrittlement, thereby meet the request for utilization of low temperature environment; 3) high strength: hard-pressed bale sheath adopts ethylene tetrafluoroethylene copolymer (ETFE), has improved the mechanical property of tightly packaged fiber, compares stretching resistance greatly improve with the common tightly packaged fiber of normal temperature; 4) high flame retardant, ageing-resistant, long-life, corrosion-resistant: adopt ethylene tetrafluoroethylene copolymer (ETFE) hard-pressed bale sheath, this kind of material has very high fire resistance, ageing-resistant, long-life and decay resistance; 5) stability: adopt ethylene tetrafluoroethylene copolymer (ETFE) hard-pressed bale sheath, have good adhesion with fibre core, structure rounding is stable, and optical property is stable.
This product, according to the concrete condition of using, has been done various machinery and environmental test to aviation with high temperature resistant multimode special optical cable, guarantees that optical cable can guarantee normally in actual use, steady operation.Main experimental checking is as follows:
(1) high temperature service life: optical cable is (135 ± 2) ℃ at test condition, tests under 500h condition, answer≤0.5dB/km of optical cable attenuation change after test;
(2) temperature cycles: optical cable is under the condition of (55 ± 2) ℃～(125 ± 2) ℃ in temperature, insulation 4h, 10 Periodic Temperatures circulations, external diameter change should be not more than ± 10%; Answer≤0.5dB/km of attenuation change;
(3) temperature shock: optical cable is under the condition of (65 ± 2) ℃～(135 ± 2) ℃ in temperature, insulation 2h, 10 Periodic Temperatures circulations, external diameter change should be not more than ± 10%; Answer≤0.5dB/km of attenuation change;
(4) tensile load: tensile load 450N, 1min, answers flawless, cracking or fracture, extensibility≤2%.After duration of test and test, the transmitance of optical fiber can change answer≤0.5dB;
(5) alternating bending: optical cable can meet minimum load 4.9kg, alternating bending 300 times, answer≤0.5dB of its attenuation change;
(6) resistance to compression: resistance to compression 360N, 3min, sheath is answered flawless, cracking.After duration of test and test, answer non-fiber fracture, the transmitance of optical fiber can change answer≤0.5dB;
(7) dipping: optical cable after the liquid 24h such as aircraft fluid, aerooil, jet fuel dipping, sheath tensile strength and extend and be not less than 50% before dipping, cable outer diameter change should≤± 50%;
(8) vibration: optical cable is through 10Hz～55Hz vibration frequency, and displacement amplitude is 0.75mm; Vibrations 6h, duration of test, transmitance can change answer≤0.5dB; After test, should have no mechanical damage;
(9) moisture-proof: optical cable is through 24h humidity test, 10 circulations, cable outer diameter change should be not more than ± 10%, attenuation change should≤0.5dB/km;
(10) mould: fungus growth grade≤1 grade;
(11) inflammability: optical cable adopts 60 ° of angle burning tests, and sample prolongs combustion time≤30s, prolongs answer≤10cm of combustion distance;
(12) infrabar: (air pressure 2.5kPa, height 25000m), keeping 1h, after test, transmitance can change answer≤0.5dB/km.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of high temperature resistant multimode special optical cable for aviation.
In figure 1 is fibre core; The 2nd, high temperature resistant-55 ℃～+ 125 ℃ of ultra-violet curing acrylate-coated layers; The 3rd, ethylene tetrafluoroethylene copolymer (ETFE) hard-pressed bale layer; The 4th, aramid fibre enhancement Layer; The 5th, ethylene tetrafluoroethylene copolymer (ETFE) restrictive coating.
Embodiment
Contrast accompanying drawing 1, high temperature resistant multimode special optical cable for aviation, its structure comprises fibre core 1; The ultra-violet curing acrylate-coated layer 2 of high temperature resistant-55 ℃～+ 125 ℃; Ethylene tetrafluoroethylene copolymer hard-pressed bale layer 3; Aramid fibre enhancement Layer 4; Ethylene tetrafluoroethylene copolymer restrictive coating 5, wherein the periphery of fibre core 1 is the ultra-violet curing acrylate-coated layer 2 of high temperature resistant-55 ℃～+ 125 ℃; The peripheral ethylene tetrafluoroethylene copolymer hard-pressed bale layer 3 of the ultra-violet curing acrylate-coated layer 2 of high temperature resistant-55 ℃～+ 125 ℃; The periphery of ethylene tetrafluoroethylene copolymer hard-pressed bale layer 3 is aramid fibre enhancement Layers 4; The periphery of aramid fibre enhancement Layer 4 is that ethylene tetrafluoroethylene copolymer restrictive coating 5 is that the periphery of fibre core 1 is special ultra-violet curing acrylate-coated layer 2; The periphery of polyimide coating layer 2 is ethylene tetrafluoroethylene copolymer (ETFE) hard-pressed bale layers 3; The periphery of hard-pressed bale layer 3 is aramid fibre enhancement Layers 4; The periphery of enhancement Layer 4 is ethylene tetrafluoroethylene copolymer (ETFE) restrictive coatings 5.
Its preparation method, comprises following technique:
1) fiber core is multimode, and structure is divided 50/125 μ m and 62.5/125 μ m;
2) the ultra-violet curing acrylate that applies high temperature resistant-55 ℃～+ 125 ℃ with coating equipment in the periphery of fiber core as coat, heatproof-55 ℃～+ 125 ℃, coat external diameter is 245 μ m;
3) adopt high temperature extruding machine individual layer or bilayer to extrude ethylene tetrafluoroethylene copolymer material, be wrapped in the periphery of coat as hard-pressed bale layer 3, heatproof-55 ℃～+ 125 ℃;
4) with high-speed knitter, weave aramid fibre, be wrapped in the periphery of hard-pressed bale layer 3 as enhancement Layer 4, meet stretching resistance 150N;
5) adopt high temperature extruding machine to extrude ethylene tetrafluoroethylene copolymer, be wrapped in the periphery of enhancement Layer 4 as restrictive coating, heatproof-55 ℃～+ 125 ℃.
Representative instance: cable outer diameter 1.8mm, hard-pressed bale layer external diameter 0.9mm, core structure 62.5 μ m/125 μ m, high temperature resistant multimode special optical cable for the aviation of high temperature resistant 125 ℃, is expressed as GTAE125-62.5/125-0.9-1.8.
Claims (2)
1. high temperature resistant multimode special optical cable for aviation, is characterized in that comprising ultra-violet curing acrylate-coated layer, ethylene tetrafluoroethylene copolymer hard-pressed bale layer, aramid fibre enhancement Layer, the ethylene tetrafluoroethylene copolymer restrictive coating of fibre core, high temperature resistant-55 ℃～+ 125 ℃; Wherein the periphery of fibre core is the ultra-violet curing acrylate-coated layer of high temperature resistant-55 ℃～+ 125 ℃; The peripheral ethylene tetrafluoroethylene copolymer hard-pressed bale layer of the ultra-violet curing acrylate-coated layer of high temperature resistant-55 ℃～+ 125 ℃; The periphery of ethylene tetrafluoroethylene copolymer hard-pressed bale layer is aramid fibre enhancement Layer; The periphery of aramid fibre enhancement Layer is ethylene tetrafluoroethylene copolymer restrictive coating.
2. the preparation method of high temperature resistant multimode special optical cable for aviation as claimed in claim 1, is characterized in that the method comprises following technique:
1) fiber core is multimode, and structure is divided 50/125 μ m and 62.5/125 μ m;
2) with coating equipment, apply the ultra-violet curing acrylate of high temperature resistant-55 ℃～+ 125 ℃, in the periphery of fiber core, as coat, heatproof-55 ℃～+ 125 ℃, coat external diameter is 245 μ m;
3) adopt high temperature extruding machine individual layer or bilayer to extrude ethylene tetrafluoroethylene copolymer material, be wrapped in the periphery of coat as hard-pressed bale layer, heatproof-55 ℃～+ 125 ℃;
4) with high-speed knitter, weave aramid fibre, be wrapped in the periphery of hard-pressed bale layer, as enhancement Layer, meet stretching resistance 150N;
5) adopt high temperature extruding machine to extrude ethylene tetrafluoroethylene copolymer, be wrapped in the periphery of enhancement Layer as restrictive coating, heatproof-55 ℃～+ 125 ℃.
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| CN201410320823.2A CN104049330A (en) | 2014-07-08 | 2014-07-08 | High temperature resistance multimode special optical fiber for aviation and manufacturing method thereof |
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| CN201410320823.2A CN104049330A (en) | 2014-07-08 | 2014-07-08 | High temperature resistance multimode special optical fiber for aviation and manufacturing method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730660A (en) * | 2015-03-24 | 2015-06-24 | 中国电子科技集团公司第八研究所 | Multi-core radiation-resistance optical cable and manufacturing process thereof |
| CN104777572A (en) * | 2015-04-23 | 2015-07-15 | 南京全信传输科技股份有限公司 | Aerial high-temperature-resistant loose optical cable and preparation method thereof |
| CN106094135A (en) * | 2016-08-11 | 2016-11-09 | 南京全信传输科技股份有限公司 | High temperature resistant optical cable of resistance to irradiation and preparation method thereof |
| CN106772858A (en) * | 2016-10-25 | 2017-05-31 | 山东太平洋光纤光缆有限公司 | A kind of Aero-Space optical cable and preparation method |
| CN107367807A (en) * | 2017-08-02 | 2017-11-21 | 东捷光电科技(苏州)有限公司 | A kind of aviation fire resistant special type optical cable |
| CN108490569A (en) * | 2018-05-02 | 2018-09-04 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | A kind of Optical Cables for Shipboard |
| CN108612301A (en) * | 2018-04-20 | 2018-10-02 | 江苏建宇建设集团有限公司 | A kind of high security steel wall-connecting piece |
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2014
- 2014-07-08 CN CN201410320823.2A patent/CN104049330A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730660A (en) * | 2015-03-24 | 2015-06-24 | 中国电子科技集团公司第八研究所 | Multi-core radiation-resistance optical cable and manufacturing process thereof |
| CN104777572A (en) * | 2015-04-23 | 2015-07-15 | 南京全信传输科技股份有限公司 | Aerial high-temperature-resistant loose optical cable and preparation method thereof |
| CN106094135A (en) * | 2016-08-11 | 2016-11-09 | 南京全信传输科技股份有限公司 | High temperature resistant optical cable of resistance to irradiation and preparation method thereof |
| CN106772858A (en) * | 2016-10-25 | 2017-05-31 | 山东太平洋光纤光缆有限公司 | A kind of Aero-Space optical cable and preparation method |
| CN106772858B (en) * | 2016-10-25 | 2020-04-28 | 山东太平洋光纤光缆有限公司 | Optical cable for aerospace and preparation method thereof |
| CN107367807A (en) * | 2017-08-02 | 2017-11-21 | 东捷光电科技(苏州)有限公司 | A kind of aviation fire resistant special type optical cable |
| CN108612301A (en) * | 2018-04-20 | 2018-10-02 | 江苏建宇建设集团有限公司 | A kind of high security steel wall-connecting piece |
| CN108490569A (en) * | 2018-05-02 | 2018-09-04 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | A kind of Optical Cables for Shipboard |
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Application publication date: 20140917 |
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