CN1548492A - Optical fiber jointing paint and its painting and curing process - Google Patents
Optical fiber jointing paint and its painting and curing process Download PDFInfo
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- CN1548492A CN1548492A CNA031361692A CN03136169A CN1548492A CN 1548492 A CN1548492 A CN 1548492A CN A031361692 A CNA031361692 A CN A031361692A CN 03136169 A CN03136169 A CN 03136169A CN 1548492 A CN1548492 A CN 1548492A
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Abstract
The present invention relates to fiber paint, and is especially paint for the fiber welding part and its painting and curing method. The fiber paint is the mixture of the polyurethane-acrylic ester paint forming the second fiber coating of Yong's modulus greater than 800 MPa in 60-80 wt%; and the polyurethane-acrylic ester paint forming the first fiber coating of Yong's modulus smaller than 5 MPa in 5-40 wt%. The fiber paint is poured into the painting and curing apparatus to complete corresponding painting and UV curing.
Description
Technical field the present invention relates to a kind of optical fiber coatings, especially for the optical fiber coatings that is coated in the junction behind the optical fiber fusion and coating thereof, solidified method.
Characteristics such as background technology optical fiber is a kind of communication material, and is big owing to its capacity, that cost is low are widely used in fields such as telecommunications, mobile communication, broadcasting and TV, electric power, national defence.Except the backbone network of continuous construction, arterial grid, the usage quantity in resident family district is also in continuous increase, and in partial area regional network and local loop, optical fiber more and more has competitive power, and the trend that progressively replaces copper cable is arranged.
Optical fiber is in manufacturing processed, and is inconsistent usually from fiber lengths and the final needed length of user that prefabricated stick drawn wire forms, in this case if optical fiber falls short of, just two optical fiber need be linked together to improve the length of optical fiber; Usually, the method for optical fiber connection can be divided into: fixedly connected method and on-fixed connection method.The on-fixed connection method comprises V-type method, tiretube process, pine layer tiretube process and provisional joints of optical fibre connection method.V-type method technology is simple, tiretube process and pine layer tiretube process require to be skilled in technique, but all cause optical fiber in use in time performance change; Fixedly connected method is that burning-on method has finishing optical fiber and connects its performance of back not with changing duration of service, obtain in arterial grid, the backbone network etc. out of doors widely applying, the general step of this method is before employed two fused fiber splices, should be earlier the coat of the terminal portions of these two optical fiber be peeled off, and then the part that optical fiber is exposed is inserted and is engaged axle core alignment earlier in the machine, preheating, moving fiber and be fused together.
For guarantee welding later unaffected the and optical fiber surface of the transmission quality of optical fiber be not subjected to extraneous damage, need nuditing fiber surface-coated coating at release coating.Usually in theory, two optical fiber fusions become an optical fiber, and transmission quality can not change, but in actual applications owing to the reason of each side unavoidably can cause to a certain degree loss.An integral part as the optical fiber structure composition, coating is again the reliable important leverage of Optical Fiber Transmission steady quality, so how to choose coated coating, whether stable how this coating applies and solidify and become extremely important on the fibers fused transmission performance afterwards.
At present, domestic newspaper and research about the required coated coating of fiber splices part also is not a lot, it is the coating products that repair at the fiber splices position that is used for of 950-200 that there is a kind of trade mark in known external DSM N. V., but this kind coating is after applying fiber splices portion and solidifying, the cohesive strength of original coating for being 15Mpa only, is less than the tensile strength 22Mpa of the original coating of optical fiber.
Application number is the method for attachment that 8610420.1 patent of invention discloses a kind of fiber optic splicing, specifically be meant by the joints of optical fibre two optical fiber are connected together, two Optical fiber plugs that have passage are contained in the connector body, and two plugs are contained in the coupling mechanism sleeve coaxially.Though this method can be finished the joint of two optical fiber preferably, it is subject to the influence of severe environment ground, can influence the transmission of optical fiber ground as humidity, temperature variation, and in addition, the life-span of the joints of optical fibre also can influence the life-span of optical fiber.
Application number is the coating method that 88109240.1 patent of invention also discloses a kind of fiber splices position: promptly when producing optical fiber, reserve its end tapered, fully increase at the interface that recoats between coating and the original overlay like this, and can avoid a part to recoat compress material and overlap near being spliced on the original coating material on the fiber section, but this method can not be used for the optical fiber of the required random length of the connection of double-coated optical fiber of ultraviolet light polymerization and preparation client.
Summary of the invention is in order to overcome the defective that prior art exists, and the invention discloses the prescription of the required coating in a kind of coated fiber junction and coating thereof, curing.Described optical fiber coatings is cooperated according to certain ratio, the joint of finishing optical fiber in specific engagement equipment applies, solidifies, can effectively solve the technical barriers such as cohesive force insufficient strength of common used coating at present to a certain extent, well guarantee the transmission quality of optical fiber.
Two optical fiber that are used for welding of the present invention are meant the present common optical fiber that model is identical, promptly have silica glass core and covering, the glass-clad diameter is at 125 ± 1nm, optical fiber coating adopts double layer UV curing polyurethane acroleic acid resin, at this moment the diameter of optical fiber is 245 ± 5nm, and the double-coating coating is composed as follows:
The double-deck coating of optical fiber consisting of: (in this specification sheets, the per-cent of relevant prescription all is weight percentage) with external coating (EC) (I)
The aliphatic urethane acrylate 60-85% of tool polyester and polyether skeleton
Isobornyl acrylate 10-22%
Hydroxycyclohexylphenylketone 2-5%
Two (3,5-di-t-butyl-4 '-hydroxyl) the hydrolysis laurate 1-3% of sulfo-diethyl
It is 1103Mpa, tensile strength be 8-12%, second-order transition temperature greater than 86 ℃, refractive index at 28.5-29.8Mpa, elongation at break is 1.535 at the 589nm place that the coating of above-mentioned composition has Young's modulus.
The double-deck coating of optical fiber consisting of with undercoat (II):
The aliphatic urethane acrylate oligopolymer of saturated hydrocarbon chains: 50-70%
Decyl acrylate: 5-15%
Hydroxymethyl phenyl-acetone: 4-8%
Stablizer: 0.1-1%
Adhesive accelerant: 0.5-1%
Polyoxyethylene nonyl phenol ether acrylate: 20-30%
In the above-mentioned component, stablizer is two (3,5-di-t-butyl-4-hydroxyl) the hydrolysis laurates of sulfo-diethyl, and adhesive accelerant is the gamma-mercaptopropyl trimethoxysilane.
The Young's modulus of this coating be 3-6Mpa, intensity 4-5Mpa, elongation at break 90-110%, second-order transition temperature below 10 ℃, refractive index is 1.552 at the 589nm place.
Of the present inventionly be used for the prescription that fiber splices portion applies with coating (III) and be:
The composition of external coating (EC) (I) 60-80%,
Internally coated composition (II) 5-40%.
During preparation, above-mentioned two kinds of compositions are fully mixed under about 50 ℃ by said ratio, liquid becomes the homogeneous phase postcooling to room temperature, and the speed of mixing often is 70 rev/mins, and each blended amount often is 100 liters, and the effective volume ratio of mixing kettle is 75%.
The invention also discloses coating, the curing of this optical fiber coatings on the nuditing fiber of junction, promptly utilize the double layer UV coating stripping of the end that special tool will engage two optical fiber to go earlier, and then the part that these two optical fiber are exposed is inserted in the specific junction apparatus, carry out steps such as a core alignment, preheating, moving fiber and welding successively, these two optical fiber are carried out welding, again the special equipment of joint coating of the present invention utilization is coated in and engages the exposed junction surface of optical fiber, back, be cured with ultraviolet light polymerization equipment then and get final product.
Compared with prior art, this optical fiber coatings of the present invention, when being used in the fiber splices position, it can effectively solve the technical barriers such as cohesive force insufficient strength of common used coating at present to a certain extent, well guaranteed the transmission quality of optical fiber, and coating, curing are simple, and expense cost is lower.
Appended drawings is the stereographic map that institute of the present invention optical fiber coatings applied, solidified related coating unit
Wherein: 1, mould 12, mould 23, mould 1 groove 4, mould 2 grooves
5, coating inlet 6, loose-leaf
Embodiment
Embodiment:
The setting fiber splices with the component and the content of coating is:
The composition of external coating (EC) (I) 80%
Internally coated composition (II) 20%
Above-mentioned two kinds of compositions are fully mixed under about 50 ℃ by said ratio, and liquid becomes the homogeneous phase postcooling to room temperature; Stirring velocity often is 70 rev/mins, and each blended amount often is 100 liters, and the effective volume ratio of mixing kettle is 75%.
The viscosity of above-mentioned paint formulation is 3500cps (25 ℃), and density is 1.12g/ milliliter (25 ℃), and refractive index is 1.548 (25 ℃) at the 589nm place.The optical fiber SMF-28 of two CORING companies that will engage then is that the MS-1-FS exfoliation tool is peelled off the double layer UV solidified coating of these two fiber splices portions with the trade mark of Micro-Electronics company, again these two optical fiber connectors have been removed the exposed that part of insertion Ericsson of Richardson of coat, Tex. carry out welding by above-mentioned welding step in the Ericsson 995 splicer equipment of company, cooling back engages again with the FFS-2000 of Vytran company that coating equipment applies.
It is as follows to apply solidified primary process: coating unit as shown in drawings, form by loose-leaf 6 by mold 1 and bed die 2, mold 1, bed die 2 has a semicircular groove (3 respectively, 4) and radius be 125nm, be equipped with an opening 5 at the mold centre bit, mold is to be made by the material that can see through UV light, place by mold 1 and bed die 2 merging rearward recess (3 engaging the exposed junction surface of uncoated optical fiber, back, 4) in the formed pipe, the diameter of pipe is 250nm, inject joint coating of the present invention (III) by the opening in the mold 5, be full of whole pipe until coating, liquid coating of the present invention so just is coated in the exposed junction surface of optical fiber, UV rayed 9-60 through seeing through mold 1 is after second, the coating (III) that is coated in fiber splices portion is cured, open mold 1, optical fiber is taken out promptly get the optical fiber that has been coated with through engaging.
The above-mentioned UV light of saying is DRS 120 NQ/B products from the model of ultraviolet light polymerization equipment-Fusion UV Systems company, working conditions: envrionment temperature is that 20-50 ℃, the relative humidity of environment are 30-40%, used dosage is 0.8J/Cm when solidifying
2, used ultraviolet wavelength is 350nm.
The Young's modulus of the joint coating of gained is 805Mpa, elongation at break is 15%, tensile strength is 22Mpa, second-order transition temperature is 55 ℃, refractive index is 1.545 at the 589nm place, the joint coating is 20Mpa to the cohesive strength of the original coating of optical fiber, near the tensile strength of the original coating of optical fiber, shows that the joint coating is strong to the cohesive force of original coating on the optical fiber.
Claims (3)
1, a kind of optical fiber coatings that is used for being coated in behind two optical fiber fusions the junction, contain vinylformic acid Polyurethane oligopolymer, reactive monomer, photosensitizers and other auxiliary agents, it is characterized in that, when being used for the coating of fiber splices position, adopting content is that the Young's modulus of 60-80% is that the Young's modulus of 5-40% is mixed with the Polyurethane acrylate less than the first layer of the former optical fiber coating of 5Mpa with Polyurethane acrylate and content greater than the former optical fiber coating second layer of 800Mpa, and mixing coating afterwards is the coating that is used in the fiber splices position.
Coating, solidified method when 2, the described optical fiber coatings of claim 1 is used for the fiber splices position, it is characterized in that, after the end of the optical fiber that need are engaged is peeled off solidified coating, the exposed part of optical fiber is inserted in the engagement device, carry out a core alignment, preheating, moving fiber and welding successively, and then with joint coating of the present invention by apply, solidification equipment is coated to the nuditing fiber surface, finishes ultra-violet curing.
3, coating, the curing that is used for fiber splices position coating according to claim 2 is characterized in that, applies, when solidifying, and envrionment temperature is that 20-50 ℃, the relative humidity of environment are 30-40%, used dosage is 0.8J/Cm when solidifying
2, used ultraviolet wavelength is 330～360nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031361692A CN100453611C (en) | 2003-05-16 | 2003-05-16 | Optical fiber jointing paint and its painting and curing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031361692A CN100453611C (en) | 2003-05-16 | 2003-05-16 | Optical fiber jointing paint and its painting and curing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1548492A true CN1548492A (en) | 2004-11-24 |
| CN100453611C CN100453611C (en) | 2009-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031361692A Expired - Fee Related CN100453611C (en) | 2003-05-16 | 2003-05-16 | Optical fiber jointing paint and its painting and curing process |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086881A1 (en) * | 2014-12-04 | 2016-06-09 | 泰科电子(上海)有限公司 | System and method for protecting optical fibre splice |
| JP2017049400A (en) * | 2015-09-01 | 2017-03-09 | 住友電気工業株式会社 | Optical fiber connecting method and connecting device |
| JP2019101380A (en) * | 2017-12-08 | 2019-06-24 | 住友電気工業株式会社 | Optical fiber connection structure |
| US20200012047A1 (en) | 2017-03-21 | 2020-01-09 | Corning Research & Development Corporation | Fiber optic cable assembly with thermoplastically overcoated fusion splice, and related method and apparatus |
| US10921540B2 (en) | 2018-09-07 | 2021-02-16 | Corning Incorporated | Optical fiber fan-out assembly with ribbonized interface for mass fusion splicing, and fabrication method |
| US10976492B2 (en) | 2018-09-07 | 2021-04-13 | Corning Incorporated | Cable with overcoated non-coplanar groups of fusion spliced optical fibers, and fabrication method |
| US11360265B2 (en) | 2019-07-31 | 2022-06-14 | Corning Research & Development Corporation | Fiber optic cable assembly with overlapping bundled strength members, and fabrication method and apparatus |
| US11808983B2 (en) | 2020-11-24 | 2023-11-07 | Corning Research & Development Corporation | Multi-fiber splice protector with compact splice-on furcation housing |
| US11867947B2 (en) | 2021-04-30 | 2024-01-09 | Corning Research & Development Corporation | Cable assembly having routable splice protectors |
| US11886009B2 (en) | 2020-10-01 | 2024-01-30 | Corning Research & Development Corporation | Coating fusion spliced optical fibers and subsequent processing methods thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1194609A (en) * | 1996-06-03 | 1998-09-30 | 康宁股份有限公司 | Enhanced ribbon strippability using coating additives |
| US20020099110A1 (en) * | 1999-12-30 | 2002-07-25 | Tyson Norlin | Radiation-curable coating composition |
| DE60032944T2 (en) * | 1999-12-30 | 2007-10-18 | Corning Inc. | SECONDARY COATING FOR LIGHT FILTERS |
-
2003
- 2003-05-16 CN CNB031361692A patent/CN100453611C/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717576A (en) * | 2014-12-04 | 2016-06-29 | 泰科电子(上海)有限公司 | System and method for protecting fiber continuous head |
| CN105717576B (en) * | 2014-12-04 | 2019-07-12 | 泰科电子(上海)有限公司 | System and method for protecting fibre junction head |
| US10845540B2 (en) | 2014-12-04 | 2020-11-24 | Commscope Telecommunications (Shanghai) Co. Ltd. | System and method for protecting optical fibre splice |
| US11619782B2 (en) | 2014-12-04 | 2023-04-04 | Commscope Telecommunications (Shanghai) Co. Ltd. | System and method for protecting optical fibre splice |
| WO2016086881A1 (en) * | 2014-12-04 | 2016-06-09 | 泰科电子(上海)有限公司 | System and method for protecting optical fibre splice |
| JP2017049400A (en) * | 2015-09-01 | 2017-03-09 | 住友電気工業株式会社 | Optical fiber connecting method and connecting device |
| US11561344B2 (en) | 2017-03-21 | 2023-01-24 | Corning Research & Development Corporation | Fiber optic cable assembly with thermoplastically overcoated fusion splice, and related method and apparatus |
| US20200012047A1 (en) | 2017-03-21 | 2020-01-09 | Corning Research & Development Corporation | Fiber optic cable assembly with thermoplastically overcoated fusion splice, and related method and apparatus |
| US11131811B2 (en) | 2017-03-21 | 2021-09-28 | Corning Research & Development Corporation | Fiber optic cable assembly with thermoplastically overcoated fusion splice, and related method and apparatus |
| JP2019101380A (en) * | 2017-12-08 | 2019-06-24 | 住友電気工業株式会社 | Optical fiber connection structure |
| US10976492B2 (en) | 2018-09-07 | 2021-04-13 | Corning Incorporated | Cable with overcoated non-coplanar groups of fusion spliced optical fibers, and fabrication method |
| US11347014B2 (en) | 2018-09-07 | 2022-05-31 | Corning Incorporated | Optical fiber fan-out assembly with ribbonized interface for mass fusion splicing, and fabrication method |
| US11209594B2 (en) | 2018-09-07 | 2021-12-28 | Corning Incorporated | Cable with overcoated non-coplanar groups of fusion spliced optical fibers, and fabrication method |
| US10921540B2 (en) | 2018-09-07 | 2021-02-16 | Corning Incorporated | Optical fiber fan-out assembly with ribbonized interface for mass fusion splicing, and fabrication method |
| US11360265B2 (en) | 2019-07-31 | 2022-06-14 | Corning Research & Development Corporation | Fiber optic cable assembly with overlapping bundled strength members, and fabrication method and apparatus |
| US11774677B2 (en) | 2019-07-31 | 2023-10-03 | Corning Research & Development Corporation | Fiber optic cable assembly with overlapping bundled strength members, and fabrication method and apparatus |
| US11886009B2 (en) | 2020-10-01 | 2024-01-30 | Corning Research & Development Corporation | Coating fusion spliced optical fibers and subsequent processing methods thereof |
| US11808983B2 (en) | 2020-11-24 | 2023-11-07 | Corning Research & Development Corporation | Multi-fiber splice protector with compact splice-on furcation housing |
| US11867947B2 (en) | 2021-04-30 | 2024-01-09 | Corning Research & Development Corporation | Cable assembly having routable splice protectors |
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| Publication number | Publication date |
|---|---|
| CN100453611C (en) | 2009-01-21 |
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