CN1712504A - Filling oil-containing semi-solid composition for fibre-otpical composite overhead earth wire - Google Patents
Filling oil-containing semi-solid composition for fibre-otpical composite overhead earth wire Download PDFInfo
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- CN1712504A CN1712504A CN 200410025323 CN200410025323A CN1712504A CN 1712504 A CN1712504 A CN 1712504A CN 200410025323 CN200410025323 CN 200410025323 CN 200410025323 A CN200410025323 A CN 200410025323A CN 1712504 A CN1712504 A CN 1712504A
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Abstract
A filling grease for composite fibre-optical overhead earth wire is prepared by mixing 36# hydrogenated white oil and PAO-8 synthesized oil with PriCO-3002 polybasic alcohol ester and viscosity exponential improver Lc-212, adding into additive OB fluorescent brightening agent, grease-separating inhibitor BP2400 and G1702, raising temperature, stirring, adding into organic thickening agent gas-phase carbon white H20, raising temperature, thickening, adding into antioxidant AT-215 and inorganic thickening agent SEP1650, raising temperature, thickening, shearing, circulation feeding back, cooling to normal temperature, homogenizing, degassing, filtering and obtaining the grease. It achieves good hydrogen absorption and stable fibre-optical transmitting performance.
Description
Technical field
The present invention relates to a kind of optical cable factice for filling, more particularly, the present invention relates to a kind of OPGW (Optical Fiber composite overhead Ground Wire) optical fiber factice for filling.
Background technology
The power communication cause has obtained significant progress in recent years, power communication mainly relies on the electric power rack, use optical communications medium and transmit, its principal mode has two kinds: a kind of is to be laid on the existing ultra-high-tension power transmission line or the ADSS optical cable on the transmitting line of newly-built low voltage grade; Another kind is mainly to be laid in light harvesting fiber communication on the ultra-high-tension power transmission line and overhead ground wire function in the Optical Fiber composite overhead Ground Wire (OPGW) of one.The OPGW optical cable has obtained using widely with the good combination of its good optical transmission performance (loss is little, transmission frequency bandwidth, be not subjected to electromagnetism interference etc.) and overhead ground wire proper property.
The optical fiber factice for filling is the material that is used in the filled fiber cable optical fiber loose tube.It has the provide protection of two aspects to optical cable: the one, prevent that moisture content or airborne moisture from corroding optical fiber; the 2nd, optical cable is played the liner effect; the influence of mechanical forces such as buffered optical fibers is vibrated, impact, bending is one of decisive key element that properties of optical fiber cable can be steady in a long-term.It is mainly by base oil, viscosifying agent, and the oxidation inhibitor three parts are formed.
OPGW optical cable any optical cable product different from the past, it merges opticfiber communication on the basis of overhead ground wire, place optical fiber in metal tube, require optical fiber can both keep reliable and stable optical transmission performance under various weather condition, this has proposed requirements at the higher level just for OPGW optical fiber factice for filling.These critical index mainly show as follows:
1. dripping Dian drips Dian and reflects that under certain condition filling paste reaches the temperature value of certain flowability in process of the test.And the dropping point value is answered corresponding raising for the OPGW optical cable, is not less than 220 ℃ at least, and is preferably infusible.
Its multiviscosisty type of prevailing fiber products is broadly divided into two big classes in the opticfiber communication market at present:
A. the prepared optical fiber factice for filling of siliceous type viscosifying agent, its remarkable advantages is to have good thixotropy and dropping point infusibility.Weakness is that colloid stability is poor, divides oil easily, and acid number is bigger than normal.
B. the prepared optical fiber factice for filling of organic polymer type viscosifying agent, its remarkable advantages is to have good colloid stability, oxidation stability, ointment are regardless of oil, system acidity is little.Weakness is that the more siliceous type of thixotropic property is poor, occurs colloidal gel sometimes and shrinks, and dropping point reduces.
2. flash-point and flame retardant resistance flash-point are meant that optical fiber ointment is being subjected to the lasting rising of ambient temperature, produces the critical temperature value of scintillation phenomenon when naked light is close.This index seems concerning the OPGW optical cable and is even more important that because the unitary metal sleeve of OPGW optical fiber cables needs sheet metal is carried out laser welding, this just requires the OPGW optical fiber ointment to have higher flash-point, and flame retardant resistance is arranged in fine cream filling process.At present, there are many additives can improve the flash-point and the burning-point of ointment, but handle to such an extent that bad meeting brings side effect to other index (as liberation of hydrogen, acid number, colloid stability etc.) of fine cream.
3. the physical quantity of the common Zhi Shi of cone penetration Yi Ma static state, Ji own can not characterize the rheological property of filling paste, can not show its thixotropy, but some the time can be used to judge its soft or hard degree.This especially seems important concerning the fine cream of OPGW, because the OPGW optical cable uses as the power communication overhead ground wire, fiber optic cable span is big, it is big to bear wind-force, the weather condition temperature difference is big, and this just requires fine cream cone penetration curve in-40 ℃ of-80 ℃ of temperature ranges smooth more good more, makes optical fiber that the flexible domestic animal of maximum remaining be arranged in metal sleeve, can not make optical fiber in sleeve pipe, produce microbending loss, guarantee the reliable transmission performance of optical fiber.
4. the oxidation induction period oxidation induction period is meant the optical fiber filling paste ability that resistance to oxidation is decomposed under all temps environment.Fine mastic body structure instability after the oxidation, strength degradation, have in addition hardening, hydrogen-separating quantity increases, this to microbending loss of keeping optical fiber and effectively transmission be very disadvantageous.The OPGW optical cable will will bear temperature and harsh climate hot conditions that the breaking current operation is produced through the high temperature of sheet metal laser welding in operational process in light unit manufacturing processed.These processes all can cause the deterioration by oxidation of fine cream.Therefore OPGW optical fiber factice for filling must possess good colloid stability and oxidation-resistance are arranged.The oxidation stability of ointment is analyzed by PDSC and is measured, catalytic oxidation takes place in sample under the high temperature oxidation reaction conditions, judge the thermally-stabilised energy of ointment by the time of assaying reaction, long more between oxidation induction period, oxidation stability is good more. and the length of oxidation induction period is mainly relevant with production technique with the material of selecting for use.
5. inhale hydrogen and liberation of hydrogen
Studies show that liberation of hydrogen is one of important factor that influences the decay of optical cable transmission performance, for the OPGW optical cable, the intrusion of hydrogen has three kinds of approach, and the one, OPGW optical cable interior metal parts are owing to corrode and releasing hydrogen gas when operation; The 2nd, the light unit of OPGW optical cable is stored in the hydrogen (small quantity of hydrogen that produces during laser welding) in the metal sleeve of sealing in manufacturing processed; The 3rd, the liberation of hydrogen of filling paste itself.Will the etching glass fiber after these three kinds of hydrogen penetrate into fibre coating to enter fibre core, cause fiber strength to descend loss increase etc.So concerning the fine cream of OPGW, not merely require filling paste itself to have very little liberation of hydrogen and require filling paste itself also to possess the specific function of inhaling hydrogen is arranged.
6. viscosity property
Filling paste must have viscosity, can insert filling paste in the sleeve pipe under the speed identical with production rate like this, can keep certain flowability of ointment again.For the OPGW optical cable, viscosity can not be excessive can not be too small.Because viscosity hour is convenient to insert in the metal sleeve in the course of processing, but viscosity is too little, then add the man-hour filling paste and easily run off, when being subjected to external force, do not have shock absorption.If viscosity is excessive then can to influence freely stretching of optical fiber, produce stress concentration, cause optical fiber micro-bending to produce loss.Satisfy the processing of OPGW optical cable and the permanent stability of service requirements and transmission performance, strict its viscosity scope of control is most important.
Have some patent documentations as: CN02111393.9, CN9511225.2, CN01138222.8 have reported optical cable with factice for filling prescription and performance index, but can not finely satisfy OPGW optical fiber with the required above-mentioned requirements of factice for filling.
Summary of the invention
The purpose of this invention is to provide a kind of OPGW (Optical Fiber composite overhead Ground Wire) optical fiber factice for filling, to solve the above-mentioned problems in the prior art, the factice for filling that forms with this ointment composition of the present invention should have the high dropping point of following performance A., high flash point.B: do not have the oil of branch, anti-oxidant.C. low liberation of hydrogen and suction hydrogen.Good, the 80 ℃ of following no drip phenomenons of high temperature of D high temperature performance.
Optical Fiber composite overhead Ground Wire factice for filling of the present invention, this ointment contains following component by weight percentage:
Mineral oil 36
#Hydrogenation white oil 25-40%.
Synthetic oil PAO-8 30-50%
Polyol ester PriECO-3002 5-15%
Viscosity index improver Lc-212 0.3-0.8%
Additive 0B type white dyes 0.3-0.8%
Oil dividing inhibitor---A BP2400 8-15%
---B????G1702????????????????1-3％
Organic viscosifying agent gas-phase silica H
203-6%
Inorganic thickening agent SEP.1650 1-3%
Oxidation inhibitor AT-215 0.3-0.8%
In the composition of above-mentioned ointment, 36
#The hydrogenation white oil is a mineral oil, can satisfy the basic service requirements of ointment, and is inexpensive, but low temperature properties is relatively poor.PAO-8 is a synthetic oil, and PriECO-3002 is a polyol ester, and its high temperature performance all is better than mineral oil, but price is higher, because of they are all hydrocarbon polymer, can be infinitely miscible, and it can be mixed and use, as the base oil of optical fiber ointment.Lc-212 is a viscosity index improver, makes optical fiber ointment be unlikely to feeding-up at low temperatures, at high temperature crosses rare and the influence use, to guarantee normally use in-50 ℃ of-100 ℃ of temperature ranges.The present invention adopts and to be used for making optical fiber filling paste by siliceous type viscosifying agent and compound the making of organic polymer type viscosifying agent, and the advantage that this just combines two class viscosifying agent ointment products has remedied the weakness of two class ointment relatively.The present invention has adopted gas-phase silica H respectively
20With SEP1650 as viscosifying agent.It is AT-215 that the present invention adopts multistage temperature composite antioxidant, and PAO-8 is rare hydrocarbon synthesis oil simultaneously, and itself has just possessed the strong anti-oxidation ability, so just can guarantee that fine cream all has corresponding resistance of oxidation from normal temperature to 300 ℃ temperature.Adopted OB type white dyes to contain conjugated double bond, can effectively absorb (keeping here after absorbing or absorbing) any molecular hydrogen as additive.Adopted a spot of inorganics [Al (OH)
3, Mg (OH)
2Deng] and the compound use of organism (as lipid), fine cream is played fire retardation, can play stabilization to fine mastic body again.
Above-mentioned each component all can conveniently be buied on market.
The method for preparing OPGW optical fiber factice for filling of the present invention is made up of following steps successively:
A) will drop in the reactor by mineral oil, synthetic oil, polyol ester, the viscosity index improver of above-mentioned weight percent, normal temperature stirred 20 minutes down.
B) add additive and oil dividing inhibitor, heat up and stir 200 ℃ ± 5 ℃ of temperature controls.
C) add organic viscosifying agent, the stirring of heating, 200 ℃ ± 5 ℃ of temperature controls.
D) add inorganic thickening agent, insulated and stirred, 200 ℃ ± 5 ℃ of temperature controls.
E) homogenizing is sheared circulation feed back, 45 minutes-60 minutes.
F) blowing is cooled to normal temperature≤60 ℃.
G) the homogenizing degassing is 1 hour, vacuum pressure 〉=0.07Mpa.
H) filter with 200 mesh filter screens.
Prepared OPGW optical fiber factice for filling like this promptly reaches following technical requirements:
| Dropping point | ≥220℃ | |
| Drawing cone in-degree not | 25℃ | ＞360?l/10mm |
| -40℃ | ≥260?l/10mm | |
| Flash-point | ≥220℃ | |
| Oxidation induction period (190 ℃) | ≥30min | |
| The liberation of hydrogen value (80 ℃, 24h) | ≤0.01μl/g | |
Embodiment
Embodiment 1
At normal temperatures by weight percentage with 30.5% 36
#The hydrogenation white oil, 40% PAO-8 synthetic oil, 10% PriECO-3002 polyol ester and 0.5% Lc-212 viscosity index improver mixed 20 minutes.The additive OB type white dyes of adding 0.5%, 10% BP2400 oil dividing inhibitor and 2% oil dividing inhibitor G1702 heat up and stir, and temperature is controlled at 200 ℃ ± 5 ℃, adds organic viscosifying agent gas-phase silica H of 4% then
20The stirring of heating, temperature is controlled at 200 ℃ ± 5 ℃, adds the inorganic thickening agent SOP.1650 of 0.5% oxidation inhibitor AT-215 and 2% again, insulated and stirred, temperature are controlled at 200 ℃ ± 5 ℃, shear through 45-60 minute homogenizing again, the circulation feed back is cooled to normal temperature ,≤60 ℃.The homogenizing degassing one hour (vacuum pressure 〉=0.07Mpa) with the filtration of 200 mesh filter screens both required OPGW optical fiber filling paste.
Embodiment 2
Method by embodiment 1 repeats to implement, but each components contents is as follows
Mineral oil 36
#Hydrogenation white oil 26%
Synthetic oil PAO-8 47%
Polyol ester PriECO-3002 7%
Viscosity index improver Lc-212 0.3%
Additive OB type white dyes 0.7%
Al(OH)
3?????????????????0.5％
Oil dividing inhibitor---A BP2400 7%
---B??G1702????????????????????3％
Organic viscosifying agent gas-phase silica H
205%
Inorganic thickening agent SEP.1650 3%
Oxidation inhibitor AT-215 0.5%
Embodiment 3
Method by embodiment 1 repeats to implement, but each components contents is as follows
Mineral oil 36
#Hydrogenation white oil 38%
Synthetic oil PAO-8 30%
Polyol ester PriECO-3002 12%
Viscosity index improver Lc-212 0.7%
Additive OB type white dyes 0.3%
Mg(OH)
2?????????????????0.5％
Oil dividing inhibitor---A BP2400 14%
---B??G1702????????????????????1％
Organic viscosifying agent gas-phase silica H
202%
Inorganic thickening agent SEP.1650 1%
Oxidation inhibitor AT-215 0.5%
Following table has been listed the test comparison result with Britain UNIGEL company product.
| Filling paste | Density | Flash-point | Dropping point | Cone penetration dmm | Vaporization losses | Separating of oil | Hydrogen-separating quantity | Oxidation induction period | Water content | ||
| ??g/ml | ??℃ | ??℃ | ????25℃ | ????-40℃ | ??％ | ????％ | ??μl/g | ??min | ??％ | ||
| Embodiment 1 | ??0.830 | ??222 | ??＞220 | ????433 | ????315 | ??0.04 | ????0 | ??0.002 | ??＞30 | ??＜0.01 | |
| Embodiment 2 | ??0832 | ??226 | ??＞220 | ????430 | ????300 | ??0.06 | ????0 | ??0.002 | ??＞30 | ??＜0.01 | |
| Embodiment 3 | ??0.836 | ??220 | ??＞220 | ????428 | ????290 | ??0.07 | ????0 | ??0.002 | ??＞30 | ??＜0.01 | |
| ????Unigel | ??400N-400 | ??0.88 | ??＞230 | ??- | ????400 | ????＞200 | ??＜0.1 | ????0 | ??- | ??- | ??- |
| ??400N-435 | ??0.9 | ??＞250 | ??- | ????435 | ????240 | ??＜0.1 | ????0 | ??0.5 | ??- | ??- | |
| ??500N-400 | ??0.88 | ??＞230 | ??- | ????400 | ????＞200 | ??＜0.1 | ????0 | ??- | ??- | ??- | |
Claims (4)
1. Optical Fiber composite overhead Ground Wire factice for filling, this ointment contains following component by weight percentage:
Mineral oil 36
#Hydrogenation white oil 25-40%.
Synthetic oil PAO-8 30-50%
Polyol ester PriECO-3002 5-15%
Viscosity index improver Lc-212 0.3-0.8%
Additive OB type white dyes 0.3-0.8%
Oil dividing inhibitor---A BP2400 8-15%
---B??????G1702?????????????????1-3％
Organic viscosifying agent gas-phase silica H
203-6%
Inorganic thickening agent SEP.1650 1-3%
Oxidation inhibitor AT-215 0.3-0.8%
2. according to the described factice for filling of claim 1, its mineral oil in fluid 36
#Hydrogenation white oil content is 30.5%, and PAO-8 synthetic oil content is 40%, and PriECO-3002 content is 10%, and viscosity index improver Lc-212 content is 0.5%.
3. according to the described factice for filling of claim 1, oil dividing inhibitor BP2400 content wherein is 10%, and G1702 content is 2%.
4. according to the described factice for filling of claim 1, organic viscosifying agent gas-phase silica H wherein
20Content is 4%, and inorganic thickening agent SEP.1650 content is 2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410025323 CN1712504A (en) | 2004-06-22 | 2004-06-22 | Filling oil-containing semi-solid composition for fibre-otpical composite overhead earth wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410025323 CN1712504A (en) | 2004-06-22 | 2004-06-22 | Filling oil-containing semi-solid composition for fibre-otpical composite overhead earth wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1712504A true CN1712504A (en) | 2005-12-28 |
Family
ID=35718300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410025323 Pending CN1712504A (en) | 2004-06-22 | 2004-06-22 | Filling oil-containing semi-solid composition for fibre-otpical composite overhead earth wire |
Country Status (1)
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|---|---|
| CN (1) | CN1712504A (en) |
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| CN101740168B (en) * | 2008-11-19 | 2011-07-20 | 上海鸿辉光通材料有限公司 | Cold-application filling paste for cables |
| CN102207595A (en) * | 2010-03-30 | 2011-10-05 | 上海鸿辉光通材料有限公司 | Optical fiber ribbon coating paste used in band shape optical cable and preparation method thereof |
| CN102207594A (en) * | 2010-03-30 | 2011-10-05 | 上海鸿辉光通材料有限公司 | Thixotropic optical fiber filling paste for ribbon optical cable and preparation method thereof |
| CN102207593A (en) * | 2010-03-30 | 2011-10-05 | 上海鸿辉光通材料有限公司 | No-silicon type thixotropic optical fiber filling paste for optical cable and preparing method thereof |
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