CN102436027A - High temperature (200 DEG C)-resistant tightly wrapped optical fiber and preparation process thereof - Google Patents
High temperature (200 DEG C)-resistant tightly wrapped optical fiber and preparation process thereof Download PDFInfo
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- CN102436027A CN102436027A CN2012100033631A CN201210003363A CN102436027A CN 102436027 A CN102436027 A CN 102436027A CN 2012100033631 A CN2012100033631 A CN 2012100033631A CN 201210003363 A CN201210003363 A CN 201210003363A CN 102436027 A CN102436027 A CN 102436027A
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Abstract
The invention relates to a high temperature (200 DEG C)-resistant tightly wrapped optical fiber and a preparation process thereof. The high temperature (200 DEG C)-resistant tightly wrapped optical fiber is characterized in that a polyimide coating is arranged on the periphery of a fiber core; and a cross-linked ethylene-tetrafluoroethylene copolymer X-ETFE tight wrapping outer layer is arranged on the periphery of the polyimide coating; and the preparation process is as follows: the fiber core of the optical fiber is divided into single mode and multimode, the coating adopts polyimide for coating, the temperature-resistant grade is minus 65 DEG C to plus 200 DEG C, the outer diameter of the coating is 155 mu m, and the coating can enable the tightly wrapped optical fiber to be normally laid and mounted at the temperature of minus 65 DEG C; and the tight wrapping layer adopts a high-temperature plastic extruding machine for single-layer and double-layer thin-wall extrusion of the high-temperature cross-linked ethylene-tetrafluoroethylene copolymer X-ETFE, and the high temperature 200 DEG C can be resisted. The high temperature (200 DEG C)-resistant tightly wrapped optical fiber has the advantages of having the properties of high and low temperature resistance from minus 65 DEG C to plus 200 DEG C, high strength, bending resistance, impact resistance, aging resistance, long service life, corrosion resistance, flame retardance and the like, providing high-reliability services under a harsh environment and being suitable for high-speed signal transmission under aviation, aerospace, electronics, airborne special environmental conditions.
Description
Technical field
The present invention is high temperature resistant 200 ℃ of tightly packaged fibers and preparation technology thereof; Product has high-low temperature resistant-65 ℃～+ 200 ℃, high strength, anti-bending, shock resistance, ageing-resistant, long-life, characteristic such as corrosion-resistant, fire-retardant; Can highly reliable service be provided under rugged environment, be applicable to the high speed transmission of signals under Aero-Space, electronics, the airborne special environment condition.
Background technology
At present, common civilian field fiber, the producer of domestic production is a lot, and technical merit is also very ripe.But the application at military domain optical fiber also is in the initial stage developing stage.Main cause is that military optical fiber is had relatively high expectations, and not only requires good environment and mechanical property, like specific (special) requirements such as high-low temperature resistant, high strength, shock resistance, anti-bending, long-lives.So material that military optical fiber, optical cable are selected for use and manufacturing process and conventional civilian goods have very big difference.High temperature resistant 200 ℃ of tightly packaged fibers are considered the application requirements of military products just, take into full account its applicability and security, take into full account high low temperature, high strength, anti-bending, shock resistance, ageing-resistant, long-life, special environment for use requirement such as corrosion-resistant, fire-retardant.
Summary of the invention
That the present invention proposes is high temperature resistant 200 ℃ of tightly packaged fibers of a kind of proposition and preparation technology thereof, and its purpose is intended to the fiber core coat and adopts polyimide coated, has improved heat resistance than ordinary optic fibre fibre core, and heatproof reaches 200 ℃; The hard-pressed bale sheath adopts cross-linked ethylene TFE copolymer X-ETFE; Adopt the individual layer thin-walled to extrude and extrude two kinds of structures with double-layer thin wall; Improved the high and low temperature resistance-65 ℃ of tightly packaged fiber～+ 200 ℃; Adopt cross-linked ethylene TFE copolymer X-ETFE sheath, mechanical property and environmental resistance also improve greatly.
Technical solution of the present invention: the periphery that it is characterized in that fibre core is the polyimide coated layer; The periphery of polyimide coated layer is that the hard-pressed bale of cross-linked ethylene TFE copolymer X-ETFE is outer; Its preparation technology: fiber core divides single mode and multimode, single mode structure 9/125 μ m, multi-mode structure 50/125 μ m or 62.5/125 μ m; Coat adopts polyimide coated, and the temperature resistant grade of polyimide coated is-65 ℃～+ 200 ℃, and the coat external diameter is 155 μ m, and coat makes tightly packaged fiber-65 ℃ of normal laying installations down; The hard-pressed bale skin is to adopt the individual layer thin-walled to extrude high temperature extruding machine thin-walled to extrude cross-linked ethylene TFE copolymer material X-ETFE outer high temperature resistant 200 ℃ of hard-pressed bale.
The present invention has the following advantages: 1) high temperature resistant: coat adopts polyimide coated, and the hard-pressed bale sheath adopts cross-linked ethylene TFE copolymer X-ETFE, and long-term maximum operating temperature can reach+and 200 ℃.2) low temperature resistant: coat adopts polyimide coated; The hard-pressed bale sheath adopts cross-linked ethylene TFE copolymer X-ETFE; Make tightly packaged fiber descend normal laying installations at-65 ℃; Can solve general material because low temperature lays problems such as being prone to cause sclerosis, embrittlement, thereby satisfy the request for utilization of low temperature environment.3) high strength: the hard-pressed bale sheath adopts cross-linked ethylene TFE copolymer X-ETFE, has improved the mechanical property of tightly packaged fiber, compares stretching resistance with the common tightly packaged fiber of normal temperature and improves greatly.4) high flame retardant, ageing-resistant, long-life, corrosion-resistant: adopt cross-linked ethylene TFE copolymer X-ETFE hard-pressed bale sheath, this kind material has very high fire resistance, ageing-resistant, long-life and decay resistance.5) stability: adopt cross-linked ethylene TFE copolymer X-ETFE hard-pressed bale sheath, with fibre core adhesion is preferably arranged, the structure rounding is stable, and optical property is stable.
Description of drawings
Accompanying drawing 1 is the structural representation of ф 600 μ m tightly packaged fibers.
Accompanying drawing 2 is structural representations of ф 900 μ m tightly packaged fibers.
Among the figure 1 is fibre core; The 2nd, the polyimide coated layer; The 3rd, the hard-pressed bale internal layer of cross-linked ethylene TFE copolymer X-ETFE; The 4th, the hard-pressed bale of cross-linked ethylene TFE copolymer X-ETFE is outer.
Embodiment
Its preparation technology: fiber core divides single mode and multimode, single mode structure 9/125 μ m, multi-mode structure 50/125 μ m or 62.5/125 μ m; Coat adopts polyimide coated, and the temperature resistant grade of polyimide coated is-65 ℃～+ 200 ℃, and the coat external diameter is 155 μ m, and coat makes tightly packaged fiber descend normal laying installations at-65 ℃; Hard-pressed bale outer 4 is to adopt high temperature extruding machine individual layer thin-walled to extrude cross-linked ethylene TFE copolymer material X-ETFE, high temperature resistant 200 ℃.
Contrast accompanying drawing 2, its structure is that the periphery of fibre core 1 is a polyimide coated layer 2, coat adopts polyimide coated, makes tightly packaged fiber descend normal laying installations at-65 ℃; The periphery of polyimide coated layer 2 is hard-pressed bale internal layers 3 of cross-linked ethylene TFE copolymer X-ETFE, high temperature resistant 200 ℃; The periphery of the hard-pressed bale internal layer 3 of cross-linked ethylene TFE copolymer X-ETFE is hard-pressed bale skins 4 of cross-linked ethylene TFE copolymer X-ETFE, high temperature resistant 200 ℃.
Its preparation technology: fiber core divides single mode and multimode, single mode structure 9/125 μ m, multi-mode structure 50/125 μ m or 62.5/125 μ m; Coat adopts polyimide coated, and the temperature resistant grade of polyimide coated is-65 ℃～+ 200 ℃, and the coat external diameter is 155 μ m, and coat makes tightly packaged fiber descend normal laying installations at-65 ℃; Hard-pressed bale internal layer 3, hard-pressed bale outer 4 are to adopt high temperature extruding machine double-layer thin wall to extrude cross-linked ethylene TFE copolymer material X-ETFE; Hard-pressed bale internal layer 3, hard-pressed bale outer 4 high temperature resistant 200 ℃.
Use the coating equipment coating polyimide; With high temperature optical fiber extruder device fabrication hard-pressed bale internal layer; Outer with high temperature optical fiber extruder device fabrication hard-pressed bale.
Claims (2)
1. high temperature resistant 200 ℃ of tightly packaged fibers, the periphery that it is characterized in that fibre core is the polyimide coated layer; The periphery of polyimide coated layer is that the hard-pressed bale of cross-linked ethylene TFE copolymer (X-ETFE) is outer; Its preparation technology: fiber core divides single mode and multimode, single mode structure 9/125 μ m, multi-mode structure 50/125 μ m or 62.5/125 μ m; Coat adopts polyimide coated, and the temperature resistant grade of polyimide coated is-65 ℃～+ 200 ℃, and the coat external diameter is 155 μ m, and coat makes tightly packaged fiber-65 ℃ of normal laying installations down; The hard-pressed bale skin is to adopt the individual layer thin-walled to extrude high temperature extruding machine thin-walled to extrude cross-linked ethylene TFE copolymer material (X-ETFE) outer high temperature resistant 200 ℃ of hard-pressed bale.
2. high temperature resistant 200 ℃ of tightly packaged fibers according to claim 1; The periphery that it is characterized in that the polyimide coated layer is the hard-pressed bale internal layer of cross-linked ethylene TFE copolymer (X-ETFE), and the periphery of the hard-pressed bale internal layer of cross-linked ethylene TFE copolymer (X-ETFE) is that the hard-pressed bale of cross-linked ethylene TFE copolymer (X-ETFE) is outer; Its preparation technology: hard-pressed bale internal layer, hard-pressed bale skin are to adopt double-layer thin wall to extrude the cross-linked ethylene TFE copolymer (X-ETFE) that high temperature extruding machine thin-walled is extruded, high temperature resistant 200 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100033631A CN102436027A (en) | 2012-01-09 | 2012-01-09 | High temperature (200 DEG C)-resistant tightly wrapped optical fiber and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100033631A CN102436027A (en) | 2012-01-09 | 2012-01-09 | High temperature (200 DEG C)-resistant tightly wrapped optical fiber and preparation process thereof |
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| Publication Number | Publication Date |
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| CN102436027A true CN102436027A (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100033631A Pending CN102436027A (en) | 2012-01-09 | 2012-01-09 | High temperature (200 DEG C)-resistant tightly wrapped optical fiber and preparation process thereof |
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| CN (1) | CN102436027A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2246811Y (en) * | 1995-07-13 | 1997-02-05 | 岳红军 | Tensile core of optical fibre cable |
| CN202003068U (en) * | 2011-03-04 | 2011-10-05 | 上海保辉科技实业有限公司 | High temperature resistance optical cable |
-
2012
- 2012-01-09 CN CN2012100033631A patent/CN102436027A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2246811Y (en) * | 1995-07-13 | 1997-02-05 | 岳红军 | Tensile core of optical fibre cable |
| CN202003068U (en) * | 2011-03-04 | 2011-10-05 | 上海保辉科技实业有限公司 | High temperature resistance optical cable |
Non-Patent Citations (1)
| Title |
|---|
| 李刚 等: "石英光纤涂层材料", 《涂料技术与文摘》, 30 June 2008 (2008-06-30), pages 4 - 5 * |
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Address after: 12 building 01, building 301, 210036 Hanzhoung Avenue, Nanjing, Jiangsu Applicant after: Nanjing Quanxin Cable Technology Co., Ltd. Address before: 211113 No. 39 Yan Hu Road, Airport Industrial Park, Jiangning District, Jiangsu, Nanjing Applicant before: Nanjing Quanxin Cable Technology Co., Ltd. |
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Application publication date: 20120502 |