CN1045803A - Normal temperature is filled thixotropic cable filler and preparation - Google Patents
Normal temperature is filled thixotropic cable filler and preparation Download PDFInfo
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- CN1045803A CN1045803A CN 90102223 CN90102223A CN1045803A CN 1045803 A CN1045803 A CN 1045803A CN 90102223 CN90102223 CN 90102223 CN 90102223 A CN90102223 A CN 90102223A CN 1045803 A CN1045803 A CN 1045803A
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Abstract
The thixotropic cable filler that a kind of normal temperature is filled down, by the modification poly ﹠ Alpha ,-olefin oil, compound thixotropic agent, macromolecule stabilizer, defoamer, fire retardant are formed.Its 25 ℃ following viscosity 10-11 ten thousand CPS, penetration degree＜210, dropping point＞120 ℃, 25 ℃ of 1kg power overdraft are divided oil＜7%, zero pour＜-40 ℃, its waterproof sealing property at high and low temperature and electrical insulating property are good, and be compatible to optical fiber cable, and difficult combustion is nontoxic.Itself is liberation of hydrogen not, can fill at normal temperatures.Fill process is simple, no stranding and low temperature added losses, and abundant raw material, constant product quality, pollution-free, tight cover of nylon or UV-be can satisfy and the continuous stranding of loose tube fiber and fill process and performance requriements solidified.
Description
The present invention relates to optical communication cable filler technical field, is a kind of compound thixotropic optical cable packing material that can fill at normal temperatures and preparation method thereof.
Cable filler is the present filled-type optical cable stranding material of new development in the world; it is filled in institute in the optical cable and plays the water-tight effect in gapped; protection optical fiber is not subjected to the erosion and the damage of moisture content in the environment; in the life-time service process, keep good machinery, optical property; improve the stability and the reliability of transmission information; and need not safeguard after filling, prolong the work-ing life of optical cable.The external cable filler polyphyly hot-melting type vaseline constituent one class material that generally adopts now, as the hot-melting type polyisobutene mashed prod that SUMITOMO CHEMICAL Electric Industrial Co., Ltd uses, service temperature 70-80 ℃, material basin and tamping unit must heat during use.The synthesizing polyisobutylene source is few, and the price height uses under the heat fused condition, and operational condition and equipment requirements are higher, and the water-tight performance is often met the gas contraction because of material and caused that crackle reduces, and the shortcoming that causes optical fiber low temperature added losses to increase is arranged.So study non-polyisobutene series, can use at normal temperatures, the water-tight performance is good, the novel optical cable packing material of no low temperature added losses just has crucial meaning.
The objective of the invention is to study a kind of novel optical cable packing material that can use at normal temperatures, it can satisfy all requirements of cable filler, promptly is semi-solid state in the use temperature scope, does not hang stream below 80 ℃, being chilled to-40 ℃ does not freeze, waterproof and good seal performance are to used optical fiber, the cable material is compatible, no chemical corrosion, no hydrogen release, oxidation stability is good, and anti-environmental aging is filled the back Optical Fiber Transmission performance is not had influence, do not produce the low temperature added losses, remove easily, to fibre-optical splice, optical cable installation and maintenance engineering does not have any impact, and is easy and simple to handle, satisfy the optical cable production line requirement of working continuously, production cost is low, and low price is beneficial to and applies.
The technical measures that realize the object of the invention are to be raw material with the modification poly ﹠ Alpha ,-olefin oil, are equipped with compound thixotropic agent, stablizer, defoamer and fire retardant and make the thixotropy oil-containing constituent of good combination property as cable filler.Above-mentioned modification poly-1-olefin oil is the synthetic oil that contains tackifier, pour point depressant, oxidation inhibitor.Add polymeric viscosifiers (as a kind of lower molecular weight oil-soluble polymers) and improve its viscosity-temperature characteristics, its add-on is 6-10%.Add pour point depressant (as β-alkylnaphthalene) and reduce oily zero pour.The addition of described pour point depressant is 0.5-2%, makes the stopping composition that makes have good manufacturability and low-temperature performance in wide temperature range.The a small amount of oxidation inhibitor (0.1-1%) that adds is the compound that has reactive hydrogen atom in the molecule, and as alkylphenol compounds etc., it can combine with the free radical that hydrocarbon-type oil is produced by atmospheric oxidation, and the inhibited oxidation chain reaction is to improve the oils oxidation stability.The quality of the oil after the modification, kinematic viscosity in the time of 100 ℃ ≮ 7.5-8.5 centistoke,-20 ℃ of time ≯ 2000 centistokes, kinematic viscosity ratio 50 ℃/100 ℃=3.6, open flash point temperature ≮ 190 ℃, freezing point temperature ≯-40 ℃, there are not water-soluble acid or alkali, do not have mechanical impurity, moisture ≯ 50ppm does not have corrosion to copper sheet under 100 ℃.
The compound thixotropic agent of above-mentioned interpolation is by the chemical structure difference, thixotroping A(such as carbonyl compound that the mechanism of action is different) and thixotropic agent B(such as oxy-compound) in the preparation of A/B=1/3-3/2 ratio, this compound thixotropic agent content is 24-40% in the thixotropy oily composition.Thixotropic agent A is water-fast with the modified oil constituent, become colloidality good, and viscosity is lower, but compressive strength is low, and thixotropy is less, divides oil and thermostability also relatively poor.Form the oil-containing constituent of making by thixotropic agent B and modified oil, thixotropy is strong, and the compressive strength height divides oil and thermostability also better, but poor water resistance, the viscosity height.So the oil-containing constituent that adopts above-mentioned single thixotropic agent to make is undesirable as cable filler, but two kinds of thixotropic agent are used with, make the constituent of compound thixotroping system, just the overall merit that has two kinds of thixotropic agent, and thixotropy, any thixotropic agent that colloidal stability uses more separately is all high.
Thixotropic agent A and thixotropic agent B are compound, when the oil-containing constituent of making is used for once filling between optical fiber core and the polyester belt, because of a small amount of oil dripping phenomenon can appear in the pressure that is subjected to the polyester belt winding, in order further to improve the colloidal stability of constituent, reduce pressure and divide oil, (as stablizer, the macromolecule stabilizer that the present invention selects for use is an olefin polymer as oil absorbing polymer agent etc., adds about 5% in constituent can to add the good material of some lipophilicities.
In order to increase the anti-spumescence of constituent, can add a small amount of defoamer, as be insoluble to the silicone oil of above-mentioned modified oil, its energy high dispersing reduces bubble surface tension force it is broken in oil.
Be that the constituent of base oil is when running into burning things which may cause a fire disaster with the modified oil, easily fire burns, bring insecurity for production and use, therefore in constituent, also add fire retardant, the present invention adds a kind of liquid flame retardant that is scattered in the oil in constituent, its consumption is the 3-5% of constituent weight, and this fire retardant is not halogen-containing, can not produce irritating smell, free from environmental pollution during pyrolytic decomposition.To add the constituent that fire retardant is arranged and carry out combustion test, show that this constituent has better flame retardancy and self-extinguishing when contact flame.
The practical formulation of this cable filler is as follows:
Percentage ratio meter by weight
(1) modification poly ﹠ Alpha ,-olefin oil (containing tackifier 6-10, pour point depressant 0,5-2.0, oxidation inhibitor) 55-70
(2) thixotropic agent A 10-25
(3) thixotropic agent B 14-30
(4) macromolecule stabilizer 2-6
(5) defoamer 1.5-3
(6) fire retardant 2-5
The over-all properties such as the table 1 of gained constituent
Table 1 over-all properties
By table 1 as seen, optical cable packing material of the present invention has following characteristic:
1, static viscosity height, water resisting property is strong, good airproof performance.
2, thixotropy is obvious, and thixotropy index is higher, and normal temperature uses, good manufacturability.
3, neither too hard, nor too soft, resiliency is good, and is colloid-stabilised, anti-oxidant, and the durability period is long.
4, high temperature performance is good, and no hydrogen release does not influence the Optical Fiber Transmission performance.
5, compatible to the fiber optic cable material, no chemical corrosion.
6, electric insulating quality is good, and dielectric loss is little, is applicable to fiber/copper line composite cable.
7, nontoxic, anti-combustion, safe in utilization.
Embodiment 1
Percentage ratio is got modification poly ﹠ Alpha ,-olefin oil (containing tackifier, pour point depressant, oxidation inhibitor) 58 by weight, thixotropic agent A10, and thixotropic agent B24, macromolecule stabilizer 3, defoamer 1.5-3, fire retardant 2 mixes each component.Do not have gas release in the interaction process, in gas chromatographic column, carry out TCD and detect, the retention time of hydrogen is not in the same old way being gone out the peak.Infrared measurement (with the KBr smear) is at 3700-3000cm
-1, 960-850cm
-1Show the hydrogen bond characteristic absorbance in the OH absorption band of widening, salient features measurement result such as table 2.
Table 2
Embodiment 2
To produce the trial production of cable filler 200kg/ day scale, its formulation weight percentage ratio is modification poly ﹠ Alpha ,-olefin oil (containing tackifier, pour point depressant, oxidation inhibitor) 66, and thixotropic agent A10(is industrial), thixotropic agent B14(is industrial), macromolecule stabilizer 3, defoamer 2, fire retardant 5.Its practice is that modification poly ﹠ Alpha ,-olefin oil, defoamer, fire retardant are mixed, add in the dissolving tank, add macromolecule stabilizer, heat to 120 ℃ by proportioning, the slowly cooling of dissolving back, become low-viscosity liquid gradually, normal temperature to be chilled to is transferred in the steel basin, add and be mixed in proportion thixotropic agent A and thixotropic agent B, mix, become light, be imbued with the paste of colloidality, the barrelling sealing is stored after the vacuum exhaust.Product is used for Yangzhou-Gaoyou full load type single mode fiber cable.Product performance such as table 3.
Table 3
Testing method: density GB103370, viscosity and thixotropy index ASTMD2196, penetration degree GB269-77, dropping point temperature GB270-80, pressure divides oily GB392-77, water resisting property SYB4029-84, zero pour GB510-77, consistency DIN51811, chemical corrosion GB378-64, liberation of hydrogen gas-chromatography TCD method, volume resistance GB1044-70, the anti-loss GB1045-70 of dielectric coefficient, anti-oxidant SYB2681-785, moisture content GB512-65, acid number GB264-77, solid impurity DIN51813, volatility SYB2723-77, the volume expansivity hydrometer method, combustion test JISK6885-1976.
Embodiment 3
This stopping composition is used for filled fiber cable, and product is used for Yangzhou-Gaoyou article one full load type aluminium foil and combines fiber-optic communication projects such as bag single mode fiber cable, properties of optical fiber cable test result such as table 4 before and after filling.
Table 4
| Test event | Fibre loss (1.3um) # | Temperature profile (added losses dB/Km) | Water penetration test (the long 1m 24KV of water column 1m cable) | ||||
| DB/Km before the stranding | DB/Km behind the stranding | +60℃ | +10℃ | -20℃ | -30℃ | ||
| Test result | 0.54 | 0.52 | 0 | 0 | 0.01 | 0 | Anhydrous oozing out |
# cable length 2984m, 4 optical cable mean values
Show that by data in the table this material is used for the optical cable filling and has enough optics, machinery and water resistance.
Claims (9)
1, the thixotropic cable filler of filling under a kind of normal temperature, it is characterized in that by modification poly ﹠ Alpha ,-olefin oil (containing tackifier, pour point depressant, oxidation inhibitor), the semi-solid state paste that compound thixotropic agent, macromolecule stabilizer, defoamer, fire retardant are formed has the composition of remarkable thixotropic behavior, the said composition press filtration can be passed through 180 mesh sieves, 25 ℃ of following viscosity 10-11 ten thousand CPS, 25 ℃ of penetration degree＜210 cone 1/10mm, dropping point temperature＞120 ℃, 25 ℃ of 1kg power overdraft are divided oil＜7%, zero pour＜-40 ℃.
2, cable filler according to claim 1, the quality specification that it is characterized in that the modification poly ﹠ Alpha ,-olefin oil is that kinematic viscosity is at 100 ℃ ≮ 7.5-8.5 centistoke,-20 ℃ ≯ 2000 centistokes, kinematic viscosity ratio equals 3.6 for 50 ℃/100 ℃, open flash point ≮ 190 ℃, condensation point ≯-40 ℃, there are not water-soluble acid or alkali, under 100 ℃ copper sheet is not had corrosion, moisture ≯ 50ppm does not have mechanical impurity.
3, cable filler according to claim 1 is characterized in that adding in the described modification poly ﹠ Alpha ,-olefin oil 6-10% lower molecular weight oil-soluble polymers tackifier, 0.5-2% pour point depressant, 0.1-1% oxidation inhibitor.
4, optical cable filler as claimed in claim 1 is characterized in that compound thixotropic agent by two kinds of chemical structure differences, the thixotropic agent A(that the mechanism of action is different such as its compound of carbonyl) and thixotropic agent B(such as oxy-compound) formulated in A/B=1/3～3/2 ratio.
5, cable filler as claimed in claim 1 is characterized in that described macromolecule stabilizer is an oil-absorbing polymer, and addition is 2-6% in constituent.
6, cable filler according to claim 1 is characterized in that described defoamer for being insoluble to mineral oil, but can high dispersing in oil, reduce bubble surface tension force and make its disruptive material (as silicone oil).
7, cable filler according to claim 1 is characterized in that fire retardant is solubilized or is scattered in not halogen-containing liquid flame retardant in the oil, and its consumption is 2-5%.
8, as cable filler as described in claim 1 or 3, it is characterized in that described tackifier are a kind of lower molecular weight oil soluble polar polymer, as polymethacrylate, polyacrylic ester, polyvingl ether etc.
9, cable filler is characterized in that prescription is modification poly ﹠ Alpha ,-olefin oil 55-70%(weight percentage according to claim 1, as follows), compound thixotropic agent 25-40%(is thixotropic agent A10-25% thixotropic agent B14-30% wherein), macromolecule stabilizer 2-6%, defoamer 1.5-3%, fire retardant 2-5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102223 CN1045803A (en) | 1990-04-18 | 1990-04-18 | Normal temperature is filled thixotropic cable filler and preparation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102223 CN1045803A (en) | 1990-04-18 | 1990-04-18 | Normal temperature is filled thixotropic cable filler and preparation |
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| CN1045803A true CN1045803A (en) | 1990-10-03 |
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| CN 90102223 Pending CN1045803A (en) | 1990-04-18 | 1990-04-18 | Normal temperature is filled thixotropic cable filler and preparation |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0484744A2 (en) * | 1990-11-06 | 1992-05-13 | Siemens Aktiengesellschaft | Filled optical cable or optical wire |
| CN101427117A (en) * | 2006-09-22 | 2009-05-06 | 日本电力电线电缆株式会社 | Optical fiber temperature distribution measuring apparatus, optical fiber temperature distribution measuring method and optical fiber temperature distribution measuring system |
| CN101789283A (en) * | 2010-03-26 | 2010-07-28 | 深圳尤尼吉尔通信有限公司 | Environment-friendly semi-dry type high water adsorption swelling waterproof cream and preparation technology thereof |
| CN101847473A (en) * | 2010-04-13 | 2010-09-29 | 深圳尤尼吉尔通信有限公司 | Half-dry environment-friendly insulation filling compound for electrician equipment and preparation technology thereof |
| CN101876735A (en) * | 2010-06-04 | 2010-11-03 | 深圳尤尼吉尔通信有限公司 | Half-dry environment-friendly optical fiber filling paste and preparation technology thereof |
| CN102005263B (en) * | 2009-08-31 | 2012-04-04 | 上海鸿辉光通材料有限公司 | Flame-retardant fiber filling gel for optical cable and preparation method thereof |
| CN102005264B (en) * | 2009-08-31 | 2012-05-23 | 上海鸿辉光通材料有限公司 | Inflame-resistance and water-resistance filling paste for optical cable and preparation method thereof |
| CN102796299A (en) * | 2012-08-16 | 2012-11-28 | 深圳市金泰科技有限公司 | Filling composite and its preparation process |
| CN114349393A (en) * | 2020-10-12 | 2022-04-15 | 中广核三角洲（江苏）塑化有限公司 | Ceramic polyolefin sheath material for non-metal flame-retardant fire-resistant optical cable |
| CN114350053A (en) * | 2020-10-12 | 2022-04-15 | 中广核三角洲（江苏）塑化有限公司 | Preparation method of ceramic polyolefin sheath material for flame-retardant and fire-resistant optical cable |
-
1990
- 1990-04-18 CN CN 90102223 patent/CN1045803A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0484744A3 (en) * | 1990-11-06 | 1992-10-28 | Siemens Aktiengesellschaft | Filled optical cable or optical wire |
| EP0484744A2 (en) * | 1990-11-06 | 1992-05-13 | Siemens Aktiengesellschaft | Filled optical cable or optical wire |
| CN101427117A (en) * | 2006-09-22 | 2009-05-06 | 日本电力电线电缆株式会社 | Optical fiber temperature distribution measuring apparatus, optical fiber temperature distribution measuring method and optical fiber temperature distribution measuring system |
| CN102005263B (en) * | 2009-08-31 | 2012-04-04 | 上海鸿辉光通材料有限公司 | Flame-retardant fiber filling gel for optical cable and preparation method thereof |
| CN102005264B (en) * | 2009-08-31 | 2012-05-23 | 上海鸿辉光通材料有限公司 | Inflame-resistance and water-resistance filling paste for optical cable and preparation method thereof |
| CN101789283A (en) * | 2010-03-26 | 2010-07-28 | 深圳尤尼吉尔通信有限公司 | Environment-friendly semi-dry type high water adsorption swelling waterproof cream and preparation technology thereof |
| CN101789283B (en) * | 2010-03-26 | 2011-11-30 | 深圳尤尼吉尔通信有限公司 | Environment-friendly semi-dry type high water adsorption swelling waterproof cream and preparation process thereof |
| CN101847473A (en) * | 2010-04-13 | 2010-09-29 | 深圳尤尼吉尔通信有限公司 | Half-dry environment-friendly insulation filling compound for electrician equipment and preparation technology thereof |
| CN101847473B (en) * | 2010-04-13 | 2012-04-18 | 深圳尤尼吉尔通信有限公司 | Semi-dry environmental-protection type insulation filling compound for electrician equipment and preparation process thereof |
| CN101876735B (en) * | 2010-06-04 | 2011-11-30 | 深圳尤尼吉尔通信有限公司 | Half-dry environment-friendly optical fiber filling paste and preparation process thereof |
| CN101876735A (en) * | 2010-06-04 | 2010-11-03 | 深圳尤尼吉尔通信有限公司 | Half-dry environment-friendly optical fiber filling paste and preparation technology thereof |
| CN102796299A (en) * | 2012-08-16 | 2012-11-28 | 深圳市金泰科技有限公司 | Filling composite and its preparation process |
| CN102796299B (en) * | 2012-08-16 | 2014-12-10 | 深圳市金泰科技有限公司 | Filling composite and its preparation process |
| CN114349393A (en) * | 2020-10-12 | 2022-04-15 | 中广核三角洲（江苏）塑化有限公司 | Ceramic polyolefin sheath material for non-metal flame-retardant fire-resistant optical cable |
| CN114350053A (en) * | 2020-10-12 | 2022-04-15 | 中广核三角洲（江苏）塑化有限公司 | Preparation method of ceramic polyolefin sheath material for flame-retardant and fire-resistant optical cable |
| CN114350053B (en) * | 2020-10-12 | 2024-03-19 | 中广核三角洲（江苏）塑化有限公司 | Preparation method of ceramic polyolefin sheath material for flame-retardant and fire-resistant optical cable |
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