CN105353485A - Waterproof optical fiber and preparation method thereof - Google Patents
Waterproof optical fiber and preparation method thereof Download PDFInfo
- Publication number
- CN105353485A CN105353485A CN201510937297.9A CN201510937297A CN105353485A CN 105353485 A CN105353485 A CN 105353485A CN 201510937297 A CN201510937297 A CN 201510937297A CN 105353485 A CN105353485 A CN 105353485A
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- CN
- China
- Prior art keywords
- optical fiber
- waterproof
- water barrier
- waterproof optical
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
Abstract
The invention discloses a waterproof optical fiber and a preparation method thereof. The waterproof optical fiber is characterized in that a waterproof layer is arranged on the periphery of an optical fiber and the thickness of the waterproof layer is 10-50 microns. According to the waterproof optical fiber, the waterproof layer is wrapped on the exterior of the optical fiber, so that the influence of water on the optical fiber is thoroughly eliminated.
Description
Technical field
The present invention relates to a kind of optical fiber, be specifically related to a kind of waterproof optical fiber.
Background technology
Existing fiber is mainly made up of silicon dioxide and UV cured resin, and a principal feature of resin is water-swellable, and hydrone is easy to penetrate into inside of optical fibre, causes the optical fiber disconnected fine decay that declines to exceed standard.A key link in producing at optical cable blocks water protection exactly; ordinary optical cable needs to add fine cream cable cream; ensure that in optical cable, water can not infiltrate, but the fine cream cable cream environmental pollution in optical cable is serious, all prohibits the use this optical cable in some developed countries such as Europe, America.Existing Full-dry optical cable adds without the need to fine cream cable cream, and replace and with the addition of block water sand and waterstop, these filling materials are smaller to environmental impact, but also have certain pollution.Need everybody to develop a kind of optical fiber of new property, thoroughly eliminate water to the impact of optical fiber, the design of optical cable is thoroughly simplified.
Summary of the invention
The object of the invention is, for solving the defect existed in prior art, to provide a kind of optical fiber with water resistance.
In order to achieve the above object, the invention provides a kind of waterproof optical fiber, be provided with water barrier in optical fiber periphery, the thickness of water barrier is 10 ~ 50 μm.
Wherein, water barrier adopts liquid nylon; The relative viscosity of liquid nylon 25 DEG C time is 3100 ~ 3900cps, and density when refractive index when 23 DEG C is 1.50 ~ 1.52,23 DEG C is 1.11kg/L.
The diameter of waterproof optical fiber of the present invention is 220 ~ 400 μm.
Present invention also offers the preparation method of above-mentioned waterproof optical fiber, above-mentioned water barrier is prepared by coating processes.
Wherein, water barrier is coated in optical fiber surface by tinting machine; Tinting machine is 0.4 ~ 1.0bar for the pressure of waterproof layer material, and speed of production is 500 ~ 800m/min.
The present invention has the following advantages compared to existing technology: the present invention, by outer fiber parcel water barrier, thoroughly eliminates water to the impact of optical fiber; Adopt coating processes to carry out the liquid nylon resin materials coating of polymolecular to optical fiber surface simultaneously, avoid adopt extrusion process to carry out coating thickness that surface parcel crystalline state waterproof material causes is large, make final finished waterproof optical fiber diameter be 220 ~ 400 μm.Optical fiber additional attenuation after waterproof optical fiber water inlet of the present invention is aging is not more than 0.05dB/km, and optical fiber dynamic fatigue is greater than 20, effectively eliminates the impact of water on optical fiber.
Accompanying drawing explanation
Fig. 1 is the structural representation of waterproof optical fiber of the present invention.
In figure, 1-covering, 2-1 layer resin, 3-2 layer resin, 4-water barrier.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
embodiment 1
Existing fiber is followed successively by covering 1,1 layer of resin 2 and 2 layers of resin 3 outside interior, the present invention at 2 layers of resin 3 outer layer covers one deck water barrier 4 of existing fiber, as shown in Figure 1.Water barrier 4 is prepared by coating processes, concrete employing MS tinting machine, the modification PA11 that this liquid nylon of the liquid nylon of one deck adopts the production of Poly U.S. plastics Science and Technology Ltd. is coated with outward at existing 230 μm of optical fiber, tinting machine is 0.4bar for the pressure of waterproof layer material, speed of production is 800m/min, finally carries out infrared heating solidification (utilizing the heat solidification waterproof material lighting rear generation in UV lamp).Adopt the waterproof optical fiber diameter of the eye mould final production of 260 μm at about 245 μm.
embodiment 2
Adopt tinting machine to be coated with the liquid nylon of one deck outward at 230 μm of optical fiber, tinting machine is 1.0bar for the pressure of waterproof layer material, and speed of production is 500m/min, finally carries out infrared heating solidification (utilizing the heat solidification waterproof material lighting rear generation in UV lamp).Adopt the waterproof optical fiber diameter of the eye mould final production of 260 μm at about 250 μm.
The waterproof optical fiber prepared in embodiment 1 and 2 is carried out following Performance Detection:
Soak aging: waterproof optical fiber is put into water, surfaces in two ends, puts into ageing oven, ageing oven temperature 85 DEG C, 30 days time, the additional attenuation of optical fiber is not more than 0.05dB/km.
Soak aging after optical fiber dynamic fatigue be greater than 20.
At optical fiber being placed in environment temperature-40 ~ 85 DEG C, optical fiber is modification not, and additional attenuation is not more than 0.05dB/km.
Claims (5)
1. a waterproof optical fiber, is characterized in that: described optical fiber periphery is provided with water barrier; The thickness of described water barrier is 10 ~ 50 μm.
2. waterproof optical fiber according to claim 1, is characterized in that: described water barrier adopts liquid nylon; The relative viscosity of described liquid nylon 25 DEG C time is 3100 ~ 3900cps, and density when refractive index when 23 DEG C is 1.50 ~ 1.52,23 DEG C is 1.11kg/L.
3. waterproof optical fiber according to claim 1, is characterized in that: the diameter of described waterproof optical fiber is 220 ~ 400 μm.
4. the preparation method of the arbitrary described waterproof optical fiber of claims 1 to 3, is characterized in that: described water barrier is prepared by coating processes.
5. the preparation method of waterproof optical fiber according to claim 4, is characterized in that: described water barrier is coated in optical fiber surface by tinting machine; Described tinting machine is 0.4 ~ 1.0bar for the pressure of waterproof layer material, and speed of production is 500 ~ 800m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937297.9A CN105353485A (en) | 2015-12-16 | 2015-12-16 | Waterproof optical fiber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937297.9A CN105353485A (en) | 2015-12-16 | 2015-12-16 | Waterproof optical fiber and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105353485A true CN105353485A (en) | 2016-02-24 |
Family
ID=55329480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510937297.9A Pending CN105353485A (en) | 2015-12-16 | 2015-12-16 | Waterproof optical fiber and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105353485A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105629377A (en) * | 2016-04-04 | 2016-06-01 | 无锡南理工科技发展有限公司 | Waterproof reinforced fiber |
| CN105652365A (en) * | 2016-04-04 | 2016-06-08 | 无锡南理工科技发展有限公司 | Waterproof optical fiber |
| CN110662993A (en) * | 2017-06-02 | 2020-01-07 | 株式会社藤仓 | Optical fiber cable and method of manufacturing optical fiber cable |
| CN112684554A (en) * | 2020-12-18 | 2021-04-20 | 南京华信藤仓光通信有限公司 | Manufacturing method of high-temperature-resistant optical fiber |
| CN113820806A (en) * | 2021-09-10 | 2021-12-21 | 南京华信藤仓光通信有限公司 | Miniature disc-shaped optical cable and manufacturing method thereof |
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|---|---|---|---|---|
| US4936651A (en) * | 1986-11-17 | 1990-06-26 | Ems -Inventa Ag | Extrudable composition and products made therewith |
| JP2002236238A (en) * | 2001-02-08 | 2002-08-23 | Furukawa Electric Co Ltd:The | Coated optical fiber |
| US20030077059A1 (en) * | 2001-03-13 | 2003-04-24 | Ching-Kee Chien | Optical fiber coating compositions |
| US20040247273A1 (en) * | 2003-06-04 | 2004-12-09 | Fabian Michelle D. | Coated optical fiber and curable compositions suitable for coating optical fiber |
| CN1826546A (en) * | 2003-07-18 | 2006-08-30 | 康宁股份有限公司 | Optical fiber coating system and coated optical fiber |
| US20100080521A1 (en) * | 2008-09-26 | 2010-04-01 | Ofs Fitel, Llc | Optical fiber with water-blocking |
| CN104238005A (en) * | 2014-10-05 | 2014-12-24 | 夏建明 | Waterproof optical fiber and optical cable utilizing same |
-
2015
- 2015-12-16 CN CN201510937297.9A patent/CN105353485A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4936651A (en) * | 1986-11-17 | 1990-06-26 | Ems -Inventa Ag | Extrudable composition and products made therewith |
| JP2002236238A (en) * | 2001-02-08 | 2002-08-23 | Furukawa Electric Co Ltd:The | Coated optical fiber |
| US20030077059A1 (en) * | 2001-03-13 | 2003-04-24 | Ching-Kee Chien | Optical fiber coating compositions |
| US20040247273A1 (en) * | 2003-06-04 | 2004-12-09 | Fabian Michelle D. | Coated optical fiber and curable compositions suitable for coating optical fiber |
| CN1826546A (en) * | 2003-07-18 | 2006-08-30 | 康宁股份有限公司 | Optical fiber coating system and coated optical fiber |
| US20100080521A1 (en) * | 2008-09-26 | 2010-04-01 | Ofs Fitel, Llc | Optical fiber with water-blocking |
| CN104238005A (en) * | 2014-10-05 | 2014-12-24 | 夏建明 | Waterproof optical fiber and optical cable utilizing same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105629377A (en) * | 2016-04-04 | 2016-06-01 | 无锡南理工科技发展有限公司 | Waterproof reinforced fiber |
| CN105652365A (en) * | 2016-04-04 | 2016-06-08 | 无锡南理工科技发展有限公司 | Waterproof optical fiber |
| CN110662993A (en) * | 2017-06-02 | 2020-01-07 | 株式会社藤仓 | Optical fiber cable and method of manufacturing optical fiber cable |
| CN112684554A (en) * | 2020-12-18 | 2021-04-20 | 南京华信藤仓光通信有限公司 | Manufacturing method of high-temperature-resistant optical fiber |
| CN113820806A (en) * | 2021-09-10 | 2021-12-21 | 南京华信藤仓光通信有限公司 | Miniature disc-shaped optical cable and manufacturing method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160224 |
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| RJ01 | Rejection of invention patent application after publication |