CN102207593A - No-silicon type thixotropic optical fiber filling paste for optical cable and preparing method thereof - Google Patents
No-silicon type thixotropic optical fiber filling paste for optical cable and preparing method thereof Download PDFInfo
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- CN102207593A CN102207593A CN 201010136112 CN201010136112A CN102207593A CN 102207593 A CN102207593 A CN 102207593A CN 201010136112 CN201010136112 CN 201010136112 CN 201010136112 A CN201010136112 A CN 201010136112A CN 102207593 A CN102207593 A CN 102207593A
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Abstract
The invention relates to a no-silicon type thixotropic optical fiber filling paste for an optical cable, mainly comprising base oil, an oil separation inhibitor, a pour inhibitor, an antioxidant, an organic thickening agent and a thixotropic agent. The invention further provides a method for preparing the optical fiber filling paste. The no-silicon type thixotropic optical fiber filling paste for the optical fiber has the characteristics of excellent colloid stability and oxidation stability, heat resistance, weather resistance, and little acid value; the oil is not separated from a system; furthermore, the optical fiber filling paste is high in thixotropic index, low in viscosity, strong in water resistance, free of emulsification, wide in universality (namely, the optical fiber filling paste is universal for big and small optical sleeves with diameter of 1.5-10 mm so as to solve the problem that the common optical fiber is converted into a ribbon optical cable without changing the paste in the secondary coating technology of the optical fiber), excellent in high-temperature drop, and resistant for high temperature and low temperature, so that the optical fiber in a loose sleeve and the cable core in the cable are always in a free unstressed state.
Description
Technical field
The present invention relates to a kind of optical cable with optical fiber filling paste and preparation method thereof, relate in particular to a kind of optical cable no-silicon type thixotropy optical fiber filling paste and preparation method thereof.
Background technology
Along with the develop rapidly of optical communication cause, the demand of optical cable grows with each passing day; Making rapid progress of optical communication cause brings great convenience to daily life, and daily life (mobile phone, computer, TV, network etc.) has be unable to do without optical communication; As everyone knows, optical communication is by optical cable transmission information, and the core material of optical cable is an optical fiber, and the patron saint of optical fiber is an optical fiber filling paste; Optical fiber can produce stress corrosion under the effect of moisture content, moisture and stress, can produce hydrogen loss in ambient containing hydrogen; Optical fiber is once be subjected to the transmission performance that stress, corrosion and hydrogen loss will reduce optical cable information greatly, as time goes by, optical cable will be lost its information transmission performance gradually, the generation of this phenomenon is well imagined the consequence that society brings, list brings very big inconvenience to daily life and work, also will produce nation-building to have a strong impact on.
In sum, the good crucial effects that will not play of optical fiber filling paste quality to the quality of optical cable, along with the high request of optical cable quality and updating of cable configuration, the quality of optical fiber filling paste product had not satisfied the usability of present optical cable and had filled requirement in the past; Along with the compactness of cable configuration, fiber number increases, and casing diameter such as dwindles at technological improvement, and optical fiber filling paste is had higher requirement.It is mainly reflected in viscosity, cone penetration and thixotropic index aspect; It is that the thixotropic index value is wanted height that its key property requires, versatility wide (secondary coating pipe diameter can be general, need not change cream), and the high temperature drip is good, and it can make optical fiber reach cable core in loose sleeve pipe can be in unstress state the most freely all the time in cable.The microbending loss and the stress corrosion of optical fiber under stress, moisture content and moisture effect of optical fiber have so just been reduced.And existing optical fiber ointment is difficult to meet above-mentioned requirements.
Siliceous type optical fiber filling paste is defined as: with the inorganics aerosil is the optical fiber filling paste that main thickening agent multiviscosisty makes, and its outward appearance is translucent lotion, meets naked light and burns easily.The no-silicon type optical fiber filling paste is defined as: be the optical fiber filling paste that main thickening agent multiviscosisty makes with the organic high molecular polymer, its outward appearance is full transparence, and the chance naked light is nonflammable.Siliceous type optical fiber filling paste is compared its main weak point and is with the no-silicon type optical fiber filling paste:
1, poor, the structural instability of siliceous type optical fiber filling paste colloid stability is analysed oil, is caused colloid dry and cracked thereby shear the easy solid-liquid phase-splitting generation in back repeatedly, and optical fiber is produced stress; Analyzing its reason mainly is because aerosil belongs to mineral compound.Its micromechanism is a microspheric, and is imporous.The olefinic organic quasi-molecule of base oil can only adsorb its surface, can not resemble the hole that pierces organism crystal layer structure between the crystal layer, and oil still can firmly be controlled between the crystal layer.Therefore comparatively speaking, (as temperature, shearing, pressure) is than being easier to branch oil under certain condition.
2, siliceous type optical fiber filling paste acid number is bigger.As for acid number bigger than normal be because silicon dioxide belongs to acidic oxide, measuring under the test condition of acid number, run into potassium hydroxide highly basic class material and will react certainly, just show as acidity.If silicon dioxide combines with the organic topped thing in top layer firmly and level of coverage is more complete, corresponding acid number is just a little bit smaller; But price comparison costliness.
3, siliceous type optical fiber filling paste demulsification performance is poor.
4, when dioxide-containing silica is higher, by fill pipe the time, can produce static; Therefore maybe need processing line ground connection.
5, silicon dioxide contains agglomerate, has an opportunity more sensitive filtering system is blocked.
6, price is more expensive.
Summary of the invention
Purpose of the present invention, a kind of optical cable no-silicon type thixotropy optical fiber filling paste is provided at the problems referred to above exactly, this optical fiber filling paste can thoroughly solve use and the protection question of optical cable under various natural environment and climate conditions, to guarantee the transmission performance of optical cable.
Another object of the present invention is to provide a kind of preparation method of above-mentioned no-silicon type thixotropy optical fiber filling paste.
The used in order to reach the goal technical scheme of the present invention is:
A kind of optical cable no-silicon type thixotropy optical fiber filling paste comprises following feed composition and weight percent content thereof:
Base oil 70～85%;
Oil dividing inhibitor 5～15%;
Antioxidant 0.3～1%;
Organic viscosifying agent A 2～10%;
Organic viscosifying agent B 2～10%;
Thixotropic agent 1～8%;
Pour-point depressant 0.1～3%.
Above-mentioned optical cable no-silicon type thixotropy optical fiber filling paste, wherein, described base oil is selected from 3 class hydrogenation white oils and the synthetic oil at least a, described oil dividing inhibitor is selected from polyisobutylene or polybutylene, described antioxidant is high-temp liquid antioxidant, described organic viscosifying agent A is selected from the high molecular polymer thermoplasticity synthetic rubber that the styrene weight content is 35-40%, and described organic viscosifying agent B is selected from the high molecular polymer thermoplasticity synthetic rubber that the styrene weight content is 25-30%.
Above-mentioned raw materials is the commercially available prod.
The present invention also provides the preparation method of a kind of above-mentioned optical cable with no-silicon type thixotropy optical fiber filling paste, may further comprise the steps:
Earlier pour-point depressant is added in the base oil, after the full and uniform stirring, add oil dividing inhibitor, heat and stirred 1～3 hour, when treating that temperature rises to 100 ℃, add organic viscosifying agent A and organic viscosifying agent B respectively, continue to heat and stirred 2～5 hours, treat that temperature rises to 160 ℃, stop to heat, insulated and stirred added antioxidant and stirred 0.5-1 hour again after 1～3 hour, and then cooling is cooled to 50 ℃～80 ℃, add thixotropic agent, fully feed back stirred after 1～3 hour, ground through homogeneous, vacuum outgas obtains final products.
The above-mentioned optical cable preparation method of no-silicon type thixotropy optical fiber filling paste, wherein, described final products are water white transparency shape colloid.
Optical cable of the present invention no-silicon type thixotropy optical fiber filling paste, its principal character is that not containing in traditional fine paste formulation with inorganics gas-phase silica (silicon dioxide) is the fine cream product that main thickening agent is made, it serves as that main thickening agent is made with the organic polymer synthetic polymer, its key property is to have good colloid stability and oxidation stability, thermotolerance, weatherability, system are regardless of oil, acid number is little; The thixotropic index height, low viscosity, water resisting property is strong, not emulsification, versatility wide (big or small ferrule is general), the high temperature drip is good, and it can make optical fiber reach cable core in loose sleeve pipe can be in unstress state the most freely all the time in cable.The microbending loss and the stress corrosion of optical fiber under stress, moisture content and moisture effect of optical fiber have so just been reduced.When this fine cream is subjected to stress (as the carrying of optical cable, lifting etc.), demonstrate the same state of solid optical fiber to be fixed motionless; And when this stress is higher than a critical value (as by bending, make a dash hit etc.), filling paste will flow, and viscosity then descends rapidly, and like this, optical fiber almost can not have bending with regard to dischargeing these suffered stress when being subjected to stress.And, because the thermodynamics phase of this filling paste tendency is solid-state, so filling paste reverts to semisolid gradually again and optical fiber is fixed after the optical fiber freedom; Improved the transmission quality of optical cable greatly, and common fine cream is when being subjected to these stress, optical fiber will be subjected to stress simultaneously, makes optical fiber be in the local stress state in long time, produces big curved and microbending loss, produces stress corrosion under the moisture content effect.Generally speaking, added losses will reduce more than 50% when using thixotropic paste, the stranding added losses will reduce more than 20%, single mode fiber system for 1.55 mum wavelengths, its transmission link can increase 10Km, can increase by 12%,, then improve the quality of optical communication more if add in the use because of optic fibre force reduces all benefits of bringing (as the reduction of modal dispersion etc.).Secondly because the cone penetration bigger (about 4501/10mm) of no-silicon type thixotropy optical fiber filling paste of new generation, viscosity ratio less (about 4300mpa.s, U.S. Brookfield HBDV-II+CP cone and plate viscometer, shearing rate D=50S
-1), so more help controlling optical fiber excess length in the loose sleeve pipe.
As the fundamental characteristics of optical fiber ointment is exactly thixotropy, so-called thixotropy is meant: when applying an external force, optical fiber ointment viscosity under the shearing force effect descends, present flowability, but after external force is removed, when remaining static, through viscosity recovery after a while, get back to the thickness state that can not flow again, but not necessarily return to original viscosity and denseness.
The thixotropy of optical fiber ointment has a significant impact the mechanical protection effect of the optical fiber in the loose sleeve pipe after to secondary coating technology and optical cable stranding; In secondary coating technology, optical fiber ointment is pumped to extrusion head, in the process of injection fibre pine sleeve pipe, under the effect of mechanical pump, optical fiber ointment is under certain shear rate, and viscosity descends rapidly, and fine cream becomes the semifluid of good fluidity, can evenly and stably inject loose sleeve pipe, after loose sleeve pipe is shaped, act on external force disappearance on the fine cream, ointment is returned to the thickness state gradually, can not flow, form stable optical fiber loose tube.In addition; in fiber cable laying uses; be subjected to external force such as bending, vibration, impact when optical cable and do the time spent; cause optical fiber amplitude and minimum rocking of cycle near the equilibrium position; when it rocks the optical fiber ointment of masterpiece around using; ointment viscosity descends, and dashes protection thereby optical fiber is played silk ribbon attached to an official seal or a medal, and does not cause optical fiber to be subjected to stiff reacting force and cause microbending loss.Good thus optical fiber ointment must possess certain thixotropy is arranged.The thixotropy quality can be represented with the thixotropic index value:
Optical cable of the present invention need not heat when filling with no-silicon type thixotropy optical fiber filling paste product, fills behind the optical cable and can play effects such as good protection against the tide, waterproof, shockproof, buffering, anti-high and low-temp to optical cable, and oversheath in the optical cable is had good compatibility.This product processing technique is simple, versatility is wide, and (big or small ferrule ￠ 1.5～10mm can be general, thereby solve optical cable in secondary coating technology, be converted to the problem that optical fiber ribbon cable need not to change cream by ordinary optical cable), production environment cleaning, pollution-free, water resisting property is strong, high temperature performance is good, is novel Green Product.
Embodiment
Below in conjunction with embodiment the present invention is further described:
Embodiment 1
Earlier 2 gram pour-point depressants are joined (350 gram synthetic oils and 418 grams, 3 class hydrogenation white oils) in the 768 gram miscellas, after the full and uniform stirring, add 100 gram polyisobutylene oil dividing inhibitors, heat and stirred 1～3 hour, when treating that temperature rises to 100 ℃, add 60 organic viscosifying agent A of gram and the organic viscosifying agent B of 35 grams respectively, continue to heat and stirred 2～5 hours, when treating that temperature rises to 160 ℃, stop to heat, insulated and stirred is after 1～3 hour, add 5 gram antioxidant, continue again to stir 0.5-1 hour, and then cooling is cooled to 50 ℃～80 ℃, adding 30 gram thixotropic agent, fully feed back stirred after 1～3 hour, grind through homogeneous, vacuum outgas, the final products that obtain at last are colourless full transparence colloid.
In the above-mentioned raw materials, it is the product of NACOFLOW195 that pour-point depressant is selected Daopu Chemical International Trade Co., Ltd., Shanghai, model for use, organic viscosifying agent A is selected from U.S. Kraton company, model is the product of G1701, and organic viscosifying agent B is selected from Infineum company, model is the product of SV260; It is the high-temp liquid antioxidant of L135 and the thixotropic agent product that model is IrgafIO 1100V that antioxidant and thixotropic agent are selected Ciba (China) company limited, model for use.
These final products leading indicator after testing are: outward appearance (water white transparency); Thixotropic index value (11); Dropping point (215 ℃); Flash-point (230 ℃); Cone penetration (25 ℃, 1/10mm, 450); Colour stability (130 ℃, 120h, 0.1); Oxidation induction period (190 ℃,＞60min); Liberation of hydrogen value (80 ℃, 24h, 0.003 μ l/g); Analyse oil (80 ℃, 24h, 0%); Evaporation capacity (80 ℃, 24h, 0.08%); Viscosity (25 ℃, D=50S
-1, 4200mpa.s); Water resisting property (20 ℃, 7d, do not disintegrate, not emulsification), acid number (0.05mgKOH/g); Water cut (nothing); Versatility (sleeve pipe ￠ 1.5～10mm); High temperature drip (80 ℃, not drip); Good with all material compatibility.
Embodiment 2
Earlier 3 gram pour-point depressants are joined (300 gram synthetic oils and 443 grams, 3 class hydrogenation white oils) in the 743 gram miscellas, after the full and uniform stirring, add 120 gram polybutylene oil dividing inhibitors, heat and stirred 1～3 hour, when treating that temperature rises to 100 ℃, add 55 organic viscosifying agent A of gram and the organic viscosifying agent B of 43 grams respectively, continue to heat and stirred 2～5 hours, when treating that temperature rises to 160 ℃, stop to heat, insulated and stirred is after 1～3 hour, add 6 gram antioxidant, continue again to stir 0.5-1 hour, and then cooling is cooled to 50 ℃～80 ℃, adding 30 gram thixotropic agent, fully feed back stirred after 1～3 hour, grind through homogeneous, vacuum outgas, the final products that obtain at last are the water white transparency colloid.
In the above-mentioned raw materials, it is the product of NACOFLOW195 that pour-point depressant is selected Daopu Chemical International Trade Co., Ltd., Shanghai, model for use, organic viscosifying agent A is selected from U.S. Kraton company, model is the product of G1701, and organic viscosifying agent B is selected from Infineum company, model is the product of SV260; It is the high-temp liquid antioxidant of L135 and the thixotropic agent product that model is IrgafIO 1100V that antioxidant and thixotropic agent are selected Ciba (China) company limited, model for use.
These final products leading indicator after testing are: outward appearance (water white transparency); Thixotropic index value (11); Dropping point (220 ℃); Flash-point (230 ℃); Cone penetration (25 ℃, 1/10mm, 455); Colour stability (130 ℃, 120h, 0.1); Oxidation induction period (190 ℃,＞60min); Liberation of hydrogen value (80 ℃, 24h, 0.004 μ l/g); Analyse oil (80 ℃, 24h, 0%); Evaporation capacity (80 ℃, 24h, 0.07%); Viscosity (25 ℃, D=50S
-1, 4300mpa.s); Water resisting property (20 ℃, 7d, do not disintegrate, not emulsification), acid number (0.05mgKOH/g); Water cut (nothing); Versatility (sleeve pipe ￠ 1.5～10mm); High temperature drip (80 ℃, not drip); Good with all material compatibility.
Embodiment 3
Earlier 5 gram pour-point depressants are joined in 756 grams, the 3 class hydrogenation white oils, after the full and uniform stirring, add 100 gram polyisobutylene oil dividing inhibitors, heat and stirred 1～3 hour, when treating that temperature rises to 100 ℃, add 55 organic viscosifying agent A of gram and the organic viscosifying agent B of 45 grams respectively, continue to heat and stirred 2～5 hours, when treating that temperature rises to 160 ℃, stop to heat, insulated and stirred is after 1～3 hour, add 6 gram antioxidant, continue again to stir 0.5-1 hour, and then cooling is cooled to 50 ℃～80 ℃, adding 33 gram thixotropic agent, fully feed back stirred after 1～3 hour, grind through homogeneous, vacuum outgas, the final products that obtain at last are the water white transparency colloid.
In the above-mentioned raw materials, it is the product of NACOFLOW195 that pour-point depressant is selected Daopu Chemical International Trade Co., Ltd., Shanghai, model for use, organic viscosifying agent A is selected from U.S. Kraton company, model is the product of G1701, and organic viscosifying agent B is selected from Infineum company, model is the product of SV260; It is the high-temp liquid antioxidant of L135 and the thixotropic agent product that model is IrgafIO 1100V that antioxidant and thixotropic agent are selected Ciba (China) company limited, model for use.
These final products leading indicator after testing are: outward appearance (water white transparency); Thixotropic index value (11); Dropping point (210 ℃); Flash-point (230 ℃); Cone penetration (25 ℃, 1/10mm, 460); Colour stability (130 ℃, 120h, 0.2); Oxidation induction period (190 ℃,＞60min); Liberation of hydrogen value (80 ℃, 24h, 0.005 μ l/g); Analyse oil (80 ℃, 24h, 0%); Evaporation capacity (80 ℃, 24h, 0.09%); Viscosity (25 ℃, D=50S
-1, 4250mpa.s); Water resisting property (20 ℃, 7d, do not disintegrate, not emulsification), acid number (0.05mgKOH/g); Water cut (nothing); Versatility (sleeve pipe ￠ 1.5～10mm); High temperature drip (80 ℃, not drip); Good with all material compatibility.
Embodiment 4
Earlier 5 gram pour-point depressants are joined in the 746 gram synthetic oils, after the full and uniform stirring, add 110 gram polybutylene oil dividing inhibitors, heat and stirred 1～3 hour, when treating that temperature rises to 100 ℃, add 60 organic viscosifying agent A of gram and the organic viscosifying agent B of 40 grams respectively, continue to heat and stirred 2～5 hours, when treating that temperature rises to 160 ℃, stop to heat, insulated and stirred is after 1～3 hour, add 6 gram antioxidant, continue again to stir 0.5-1 hour, and then cooling is cooled to 50 ℃～80 ℃, adding 33 gram thixotropic agent, fully feed back stirred after 1～3 hour, grind through homogeneous, vacuum outgas, the final products that obtain at last are the water white transparency colloid.
In the above-mentioned raw materials, it is the product of NACOFLOW195 that pour-point depressant is selected Daopu Chemical International Trade Co., Ltd., Shanghai, model for use, organic viscosifying agent A is selected from U.S. Kraton company, model is the product of G1701, and organic viscosifying agent B is selected from Infineum company, model is the product of SV260; It is the high-temp liquid antioxidant of L135 and the thixotropic agent product that model is IrgafIO 1100V that antioxidant and thixotropic agent are selected Ciba (China) company limited, model for use.
These final products leading indicator after testing are: outward appearance (water white transparency); Thixotropic index value (12); Dropping point (＞230 ℃); Flash-point (＞230 ℃); Cone penetration (25 ℃, 1/10mm, 445); Colour stability (130 ℃, 120h, 0.1); Oxidation induction period (190 ℃,＞60min); Liberation of hydrogen value (80 ℃, 24h, 0.003 μ l/g); Analyse oil (80 ℃, 24h, 0%); Evaporation capacity (80 ℃, 24h, 0.05%); Viscosity (25 ℃, D=50S
-1, 4500mpa.s); Water resisting property (20 ℃, 7d, do not disintegrate, not emulsification), acid number (0.05mgKOH/g); Water cut (nothing); Versatility (sleeve pipe ￠ 1.5～10mm); High temperature drip (80 ℃, not drip); Good with all material compatibility.
Above embodiment is only for the usefulness that the present invention is described, but not limitation of the present invention, person skilled in the relevant technique, under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (8)
1. an optical cable is characterized in that this optical fiber filling paste comprises following feed composition and weight percent content thereof with no-silicon type thixotropy optical fiber filling paste:
Base oil 70～85%;
Oil dividing inhibitor 5～15%;
Antioxidant 0.3～1%;
Organic viscosifying agent A 2～10%;
Organic viscosifying agent B 2～10%;
Thixotropic agent 1～8%;
Pour-point depressant 0.1～3%.
2. optical cable is characterized in that with no-silicon type thixotropy optical fiber filling paste described base oil is selected from 3 class hydrogenation white oils and the synthetic oil at least a according to claim 1.
3. optical cable is characterized in that with no-silicon type thixotropy optical fiber filling paste described oil dividing inhibitor is selected from polyisobutylene or polybutylene according to claim 1.
4. optical cable is characterized in that with no-silicon type thixotropy optical fiber filling paste described antioxidant is high-temp liquid antioxidant according to claim 1.
5. optical cable is characterized in that with no-silicon type thixotropy optical fiber filling paste described organic viscosifying agent A is selected from the high molecular polymer thermoplasticity synthetic rubber that the styrene weight content is 35-40% according to claim 1.
6. optical cable is characterized in that with no-silicon type thixotropy optical fiber filling paste described organic viscosifying agent B is selected from the high molecular polymer thermoplasticity synthetic rubber that the styrene weight content is 25-30% according to claim 1.
One kind according to claim 1 optical cable it is characterized in that with the preparation method of no-silicon type thixotropy optical fiber filling paste, may further comprise the steps:
Earlier pour-point depressant is added in the base oil, after the full and uniform stirring, add oil dividing inhibitor, heat and stirred 1～3 hour, when treating that temperature rises to 100 ℃, add organic viscosifying agent A and organic viscosifying agent B respectively, continue to heat and stirred 2～5 hours, treat that temperature rises to 160 ℃, stop to heat, insulated and stirred added antioxidant and stirred 0.5-1 hour again after 1～3 hour, and then cooling is cooled to 50 ℃～80 ℃, add thixotropic agent, fully feed back stirred after 1～3 hour, ground through homogeneous, vacuum outgas obtains final products.
8. as the preparation method of optical cable as described in the claim 7, it is characterized in that described final products are water white transparency shape colloid with no-silicon type thixotropy optical fiber filling paste.
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| CN102816361A (en) * | 2012-09-06 | 2012-12-12 | 深圳市金泰科技有限公司 | Filling compound for submarine optical fiber cables and preparation method of filling compound |
| CN102827482A (en) * | 2012-09-20 | 2012-12-19 | 邹斌 | Gel composition with hydrogen absorption function and preparation technique thereof |
| CN104900323A (en) * | 2015-04-03 | 2015-09-09 | 江苏南方通信科技有限公司 | Novel high-stability optical cable filling paste and preparation method thereof |
| CN116200043A (en) * | 2023-02-28 | 2023-06-02 | 山东黄河新材料科技有限公司 | Cable paste oil suitable for use in low-temperature environment and preparation method thereof |
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| US6085009A (en) * | 1998-05-12 | 2000-07-04 | Alcatel | Water blocking gels compatible with polyolefin optical fiber cable buffer tubes and cables made therewith |
| US20040109652A1 (en) * | 2002-12-04 | 2004-06-10 | Alcatel | Fiber optic cables with a hydrogen absorbing material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102816361A (en) * | 2012-09-06 | 2012-12-12 | 深圳市金泰科技有限公司 | Filling compound for submarine optical fiber cables and preparation method of filling compound |
| CN102816361B (en) * | 2012-09-06 | 2015-06-03 | 深圳市金泰科技有限公司 | Filling compound for submarine optical fiber cables and preparation method of filling compound |
| CN102827482A (en) * | 2012-09-20 | 2012-12-19 | 邹斌 | Gel composition with hydrogen absorption function and preparation technique thereof |
| CN104900323A (en) * | 2015-04-03 | 2015-09-09 | 江苏南方通信科技有限公司 | Novel high-stability optical cable filling paste and preparation method thereof |
| CN116200043A (en) * | 2023-02-28 | 2023-06-02 | 山东黄河新材料科技有限公司 | Cable paste oil suitable for use in low-temperature environment and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN102207593B (en) | 2012-12-19 |
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