CN117430962B - Filling paste for OPGW optical cable and preparation method thereof - Google Patents
Filling paste for OPGW optical cable and preparation method thereof Download PDFInfo
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- CN117430962B CN117430962B CN202311403356.5A CN202311403356A CN117430962B CN 117430962 B CN117430962 B CN 117430962B CN 202311403356 A CN202311403356 A CN 202311403356A CN 117430962 B CN117430962 B CN 117430962B
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- 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
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4483—Injection or filling devices
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The invention provides a filling paste for an OPGW optical cable and a preparation method thereof, belonging to the technical field of filling pastes. The invention adopts the trimethylolpropane ester to ensure that the filling paste has outstanding high-low temperature performance; the high molecular polymer hydrogenated styrene-isoprene copolymer is adopted as a plasticizer, has excellent weather resistance, heat resistance and adhesiveness, and can improve the heat resistance and the thermal reversibility of the filling paste by compounding the composite aluminum-based system with benzoic acid; the invention can obviously improve the antioxidation capability of the product during storage and use and prolong the service life of the product by using the high-temperature antioxidant and the low-temperature antioxidant in a compounding way. The example results show that the filling paste for OPGW optical cable provided by the invention has excellent thermal reversibility, oxidation resistance, heat resistance, rust resistance, environmental protection and flame retardance and smoke abatement characteristics.
Description
Technical Field
The invention relates to the technical field of filling paste, in particular to filling paste for an OPGW optical cable and a preparation method thereof.
Background
In recent years, with the importance and continuous investment of China in the field of high and new technology, the communication industry obtains omnibearing three-dimensional development, and particularly, the OPGW optical cable communication technology is greatly developed. The OPGW optical cable, also called optical fiber composite overhead ground wire, is characterized in that an optical fiber is placed in the ground wire of an overhead high-voltage transmission line to form an optical fiber communication network on the transmission line, and the structure has the dual functions of the ground wire and communication. In order to protect the optical fibers, the optical fiber sleeve is often required to be filled with optical fiber filling paste, and the filled optical fiber filling paste can prevent moisture or moisture in air from corroding the optical fibers on one hand, and can play a role in lining the optical cables on the other hand, and buffer the optical fibers under the influence of mechanical forces such as vibration, impact, bending and the like, so that the optical cables are protected.
In the current market, OPGW optical cable filling paste is replaced by common water blocking paste, and has only common water blocking property and no thermal reversibility; meanwhile, the oxidation resistance and the heat resistance are extremely poor; when leakage occurs, the flame-retardant smoke-eliminating performance is not achieved, and the flame-retardant smoke-eliminating performance is not achieved when the short-term short-circuit overheat occurs at the risk of spontaneous combustion. Therefore, it is necessary to develop a filler paste for OPGW optical cable having excellent thermal reversibility, oxidation resistance, heat resistance, rust resistance, environmental protection, and flame retardant and smoke abatement properties.
Disclosure of Invention
The invention aims to provide a filling paste for OPGW optical cable, which has excellent thermal reversibility, oxidation resistance, heat resistance, rust resistance, environmental protection and flame retardance and smoke abatement characteristics.
In order to achieve the above object, the present invention provides the following technical solutions:
The invention provides a filling paste for an OPGW optical cable, which is prepared from the following raw materials in parts by weight:
The gel is a composite aluminum-based system;
the antioxidant consists of a high-temperature antioxidant and a low-temperature antioxidant.
Preferably, the gelling agent is an aluminum stearate polymer.
Preferably, the mass ratio of the gel to the benzoic acid is (1.5-2): 1.
Preferably, the mass ratio of the high-temperature antioxidant and the low-temperature antioxidant is 1 (1.5-3).
Preferably, the high-temperature antioxidant is amine antioxidant surface-modified tungsten disulfide.
Preferably, the low-temperature antioxidant is a phenolic antioxidant.
Preferably, the hydrogen absorber is benzoquinone, p-nitrobenzyl alcohol or 2, 4-dinitrophenol.
Preferably, the electrical property improving agent is hydrophobic fumed silica.
The invention also provides a preparation method of the filling paste for the OPGW optical cable, which comprises the following steps:
(1) Dissolving hydrogenated styrene-isoprene copolymer in base oil to obtain liquid plasticizer;
(2) Mixing the liquid plasticizer obtained in the step (1) with trimethylolpropane ester, a flame retardant, benzoic acid and a gel agent, and performing saponification reaction to obtain the composite aluminum-based soap;
(3) And (3) mixing the composite aluminum-based soap obtained in the step (2) with an antioxidant, an antirust agent, a preservative, a hydrogen absorbing agent and an electrical property improving agent, and sequentially performing grease homogenizing and degassing to obtain the filling paste for the OPGW optical cable.
Preferably, the saponification reaction in step (2) is performed under the following reaction conditions: firstly, reacting for 30-40 min at 120-125 ℃, then heating to 210-215 ℃, and then cooling to 100-105 ℃.
The invention provides a filling paste for an OPGW optical cable, which is prepared from the following raw materials in parts by weight: 30 to 60 parts of trimethylolpropane ester, 10 to 30 parts of base oil, 5 to 15 parts of gel, 1 to 5 parts of antirust agent, 0.1 to 0.5 part of preservative, 0.5 to 3 parts of antioxidant, 0.1 to 0.5 part of hydrogen absorbent, 2 to 5 parts of flame retardant, 1 to 6 parts of hydrogenated styrene-isoprene copolymer, 0.5 to 3 parts of benzoic acid and 1 to 3 parts of electrical property modifier; the plasticizer is hydrogenated styrene-isoprene copolymer and benzoic acid; the antioxidant consists of a high-temperature antioxidant and a low-temperature antioxidant. The invention adopts the trimethylolpropane ester to ensure that the filling paste has outstanding high-low temperature performance; the invention adopts the high molecular polymer hydrogenated styrene-isoprene copolymer as the plasticizer, has excellent weather resistance, good heat resistance and adhesiveness, and can improve the heat resistance and the thermal reversibility of the filling paste by compounding the composite aluminum-based system with the benzoic acid; the invention can obviously improve the antioxidation capability of the product during storage and use and prolong the service life of the product by using the high-temperature antioxidant and the low-temperature antioxidant in a compounding way. The example results show that the taper penetration of the filling paste for OPGW optical cable provided by the invention is not lower than 372 and the taper penetration of the filling paste for OPGW optical cable at 25 ℃ is not lower than 205 at minus 40 ℃; flash point not lower than 210 ℃; the oil separation is not more than 0.08%; the hydrogen evolution amount is not more than 0.06%; the relative dielectric constant is not more than 2.0 epsilon r, and has excellent flame retardance. Therefore, the filling paste for OPGW optical cable provided by the invention has excellent thermal reversibility, oxidation resistance, heat resistance, rust resistance, environmental protection and flame retardance and smoke abatement characteristics.
Detailed Description
The invention provides a filling paste for an OPGW optical cable, which is prepared from the following raw materials in parts by weight:
The gel is a composite aluminum-based system;
the antioxidant consists of a high-temperature antioxidant and a low-temperature antioxidant.
The raw materials for preparing the filling paste for the OPGW optical cable comprise 30-60 parts by weight, preferably 40-50 parts by weight, of trimethylolpropane ester. In the invention, the trimethylolpropane ester has higher flash point, excellent low-temperature performance and viscosity-temperature performance, and can improve the high-low temperature performance of the filling paste; meanwhile, the ester oil belongs to a biodegradable product, the degradability can reach more than 90%, and the filling paste is more environment-friendly in use. In the invention, the trimethylolpropane ester is preferably a Hangzhou you rice chemical product, and the code is TRS-0019; the parameters of TRS-0019 are preferably: kinematic viscosity (40 ℃) mm 2/s: 45.93, kinematic viscosity (100 ℃) mm 2/s: 9.240, viscosity index: 189 pour point/°c: -42, flash point (opening)/°c: 295.
The raw materials for preparing the filling paste for OPGW optical cable comprise 10-30 parts of base oil, preferably 20-30 parts of base oil, calculated by 30-60 parts of trimethylolpropane ester by mass. In the present invention, the base oil is used as a fluid-type dispersion medium, which is held in a structural skeleton formed by the thickener so as to lose fluidity, thereby making the whole system in a semisolid state at normal temperature. In the invention, the base oil is preferably coal synthetic oil CTL500N of Shanxi Luan chemical industry; the parameters of CTL500N are preferably: kinematic viscosity (40 ℃) mm 2/s: 70.97, kinematic viscosity (100 ℃) mm 2/s: 10.77, viscosity index: 141, pour point/°c: -38, flash point (opening)/°c: 270.
The raw materials for preparing the filling paste for the OPGW optical cable comprise 5-15 parts of gel, preferably 8-10 parts, by weight of 30-60 parts of trimethylolpropane ester. In the invention, the gel is preferably a composite aluminum-based system, more preferably an aluminum stearate polymer, wherein the aluminum stearate polymer is preferably KOMAD 8418VO manufactured by Shanghai Hongze chemical industry, and is preferably a plant-derived aluminum stearate polymer, and the parameters of the aluminum stearate polymer are preferably as follows: aluminum content (%): 4.2%, stearic acid content (%): 42%, kinematic viscosity (40 ℃) mm 2/s: 520.
The raw materials for preparing the filling paste for OPGW optical cable comprise 1-5 parts of rust inhibitor, preferably 2-3 parts, calculated by 30-60 parts by mass of trimethylolpropane ester. In the present invention, the rust inhibitor can improve the rust inhibitive performance of the filler paste. In the invention, the rust inhibitor is preferably A1411 neutral petroleum sodium sulfonate in Hangzhou Shi Tean chemical industry, and the effective content is more than 50%. The antirust agent adopted by the invention is a neutral system, so that the antirust property of the filling paste is improved, and the composite aluminum soap structure is less influenced.
The raw materials for preparing the filling paste for OPGW optical cable comprise 0.1-0.5 part of preservative, preferably 0.2-0.4 part of preservative, calculated by 30-60 parts of trimethylolpropane ester by mass. In the invention, the preservative is preferably a benzotriazole derivative (oil-based) in Hangzhou Shi Tean chemical industry, and the code number Rz-o39 has an effective content of 98%. The preservative can enable the filling paste to have better anti-corrosion performance on nonferrous metals.
The raw materials for preparing the filling paste for the OPGW optical cable comprise 0.5-3 parts of antioxidant, preferably 1-2 parts of antioxidant, calculated by 30-60 parts of trimethylolpropane ester by mass. In the invention, the antioxidant consists of a high-temperature antioxidant and a low-temperature antioxidant. According to the invention, the high-temperature antioxidant and the low-temperature antioxidant are compounded, so that the filling paste has excellent antioxidant capacity, and the service life of the product is prolonged.
In the invention, the antioxidant consists of a high-temperature antioxidant and a low-temperature antioxidant. In the present invention, the mass ratio of the high-temperature antioxidant to the low-temperature antioxidant is preferably 1 (1.5 to 3), more preferably 1:2. In the invention, when the mass ratio of the high-temperature antioxidant to the low-temperature antioxidant is in the above range, the oxidation resistance of the product can be further improved.
In the invention, the high-temperature antioxidant is preferably amine antioxidant surface-modified tungsten disulfide. Compared with the conventional high-temperature antioxidant, the high-temperature antioxidant has better high-temperature oxidation resistance, and simultaneously has antifriction property and photochemistry property of tungsten disulfide.
In the invention, the code of the tungsten disulfide surface-modified by the amine antioxidant is preferably WS05; the preparation method of the surface-modified tungsten disulfide of the amine antioxidant preferably comprises the following steps: mixing ammonium disulfide, an amino antioxidant and octadecenoic acid, and reacting at 350-355 ℃ for 1h to obtain the surface-modified tungsten disulfide of the amine antioxidant. In the invention, the amino antioxidant is preferably dialkyl diphenylamine, and has high temperature resistance; the octadecenoic acid is a high-temperature resistant solvent.
In the invention, the low-temperature antioxidant is an antioxidant capable of improving the antioxidant capacity of a product below 100 ℃, the low-temperature antioxidant is preferably a phenol antioxidant, the low-temperature antioxidant is preferably phenol antioxidant T5012, 6-di-tertiary-p-cresol of the new petroleum additive Co., ltd. In Jinzhou, and the initial melting point is more than or equal to 68.5 ℃. The invention adopts the high-low temperature antioxidant to compound and use, can obviously improve the antioxidant capacity of the product during storage and use, and prolongs the service life of the product.
The raw materials for preparing the filling paste for OPGW optical cable comprise 1-6 parts of hydrogenated styrene-isoprene copolymer, preferably 2-4 parts, based on 30-60 parts by mass of trimethylolpropane ester. In the present invention, the plasticizer is a hydrogenated styrene-isoprene copolymer and benzoic acid; the hydrogenated styrene-isoprene copolymer is preferably a linear hydrogenated block copolymer, and is excellent in weather resistance, heat resistance and adhesion. In the present invention, the hydrogenated styrene-isoprene copolymer preferably employs M7401 of Zhejiang.
The raw materials for preparing the filling paste for OPGW optical cable comprise 0.5-3 parts of benzoic acid, preferably 2-3 parts, based on 30-60 parts by mass of trimethylolpropane ester. In the invention, the benzoic acid can be compounded with a composite aluminum-based system for use, so that the heat resistance and the thermal reversibility of the filling paste can be improved. In the invention, the benzoic acid is preferably a superior product produced by Jiangsu Shunfeng chemical Co., ltd, the purity is 99.5%, and the melting point range is as follows: 121-123 ℃.
The raw materials for preparing the filling paste for OPGW optical cable comprise 0.1-0.5 part of hydrogen absorbing agent, preferably 0.2-0.4 part, calculated by 30-60 parts by mass of trimethylolpropane ester. In the invention, the incompatibility of the filling paste and the stainless steel and the hydrogen generated in the welding process can be adsorbed on the surface of the optical fiber, and OH groups can be generated in the optical fiber by reaction or defects can be formed in the crystal lattice of the optical fiber, so that the increase of the loss of the optical fiber can influence the transmission performance of the optical fiber; the invention can effectively adsorb free hydrogen by adopting the hydrogen absorbing agent, thereby preventing damage to optical fibers. In the present invention, the hydrogen absorbing agent is preferably benzoquinone, p-nitrobenzyl alcohol or 2, 4-dinitrophenol, more preferably p-benzoquinone of the general wetting chemical company, inc., and has a melting point of 112.0 to 116.0 ℃.
The raw materials for preparing the filling paste for OPGW optical cable comprise 2-5 parts of flame retardant, preferably 3-4 parts, based on 30-60 parts by mass of trimethylolpropane ester. In the present invention, the flame retardant is preferably an oligomeric phosphate, more preferably tricresyl phosphate produced by Wansheng GmbH, zhejiang, under the designation TCP, and having a viscosity (25 ℃ C., mPa. S): 56-62, acid value (mgKOH/g): less than or equal to 0.1.
The raw materials for preparing the filling paste for OPGW optical cable of the invention comprise 1-3 parts of electric property improver, more preferably 2-3 parts, based on 30-60 parts by mass of trimethylolpropane ester. In the invention, the electrical property improver can reduce the dielectric constant and improve the transmission efficiency of the lead. In the invention, the electric property improver is preferably hydrophobic fumed silica produced by Hubei Hui nano materials, inc. and is denoted by HB-630, the HB-630 is a hydrophobic fumed silica obtained by treating hydrophilic fumed silica of HL-380 with HMDS (hexamethyldisilazane), and the HB-630 is used as the electric property improver to be more beneficial to improving the electrochemical property of the filling paste.
The invention adopts the trimethylolpropane ester to ensure that the filling paste has outstanding high-low temperature performance; the invention adopts the high molecular polymer hydrogenated styrene-isoprene copolymer as the plasticizer, has excellent weather resistance, good heat resistance and adhesiveness, and can improve the heat resistance and the thermal reversibility of the filling paste when being used by being compounded with the benzoic acid; the invention can obviously improve the antioxidation capability of the product during storage and use and prolong the service life of the product by using the high-temperature antioxidant and the low-temperature antioxidant in a compounding way. Therefore, the filling paste for OPGW optical cable provided by the invention has excellent thermal reversibility, oxidation resistance, heat resistance, rust resistance, environmental protection and flame retardance and smoke abatement characteristics.
The invention also provides a preparation method of the filling paste for the OPGW optical cable, which comprises the following steps:
(1) Dissolving hydrogenated styrene-isoprene copolymer in base oil to obtain liquid plasticizer;
(2) Mixing the liquid plasticizer obtained in the step (1) with trimethylolpropane ester, a flame retardant, benzoic acid and a gel agent, and performing saponification reaction to obtain the composite aluminum-based soap;
(3) And (3) mixing the composite aluminum-based soap obtained in the step (2) with an antioxidant, an antirust agent, a preservative, a hydrogen absorbing agent and an electrical property improving agent, and sequentially performing grease homogenizing and degassing to obtain the filling paste for the OPGW optical cable.
The invention dissolves the hydrogenated styrene-isoprene copolymer in the base oil to obtain the liquid plasticizer.
The method for dissolving the hydrogenated styrene-isoprene copolymer in the base oil is not particularly limited in the present invention, and the hydrogenated styrene-isoprene copolymer may be sufficiently dissolved in the base oil. In the invention, the method for dissolving the hydrogenated styrene-isoprene copolymer in the base oil is preferably to uniformly stir and disperse the base oil and the hydrogenated styrene-isoprene copolymer, then gradually heating to 150 ℃ and preserving heat for 1.5 hours until the base oil and the hydrogenated styrene-isoprene copolymer are completely dissolved, so as to obtain the liquid plasticizer.
After the liquid plasticizer is obtained, the liquid plasticizer is mixed with trimethylolpropane ester, a flame retardant, benzoic acid and a gel agent for saponification reaction, so that the composite aluminum-based soap is obtained.
The method for mixing the liquid plasticizer with the trimethylolpropane ester, the flame retardant, the benzoic acid and the gelling agent is not particularly limited, and the components can be uniformly mixed. In the present invention, the method of mixing the liquid plasticizer with trimethylolpropane ester, flame retardant, benzoic acid and gelling agent preferably comprises: heating the liquid plasticizer, the trimethylolpropane ester and the flame retardant to 70 ℃ under stirring, adding the benzoic acid, then continuously heating at the heating rate of 50-60 ℃/h, heating to 80 ℃, and adding the gel. The method can fully and uniformly mix the components, is more favorable for fully carrying out subsequent saponification reaction, and improves the stability of the properties of the composite aluminum-based soap.
In the present invention, the saponification reaction is preferably: firstly, reacting for 30-40 min at 120-125 ℃, then heating to 210-215 ℃, and then cooling to 100-105 ℃; preferably, the reaction is carried out at 120 ℃ for 30min, then the temperature is raised to 210 ℃, and then the temperature is lowered to 100 ℃. In the invention, when the temperature and time of the saponification reaction are in the above ranges, the saponification reaction can be fully performed, so that the composite aluminum-based soap obtained by the saponification reaction is more stable in quality, and the stability of the performance of the filling paste is further improved.
In the invention, the rate of heating to 120-125 ℃ is preferably 50-60 ℃/h; the rate of heating to 210-215 ℃ is preferably 50-60 ℃/h; the rate of cooling to 100-105℃is preferably 25℃per hour. By adopting the heating rate, the system can be subjected to pre-reaction, so that the composite aluminum-based soap obtained by saponification is more stable in quality, and the stability of the performance of the filling paste is further improved.
After the composite aluminum-based soap is obtained, the composite aluminum-based soap is mixed with an antioxidant, an antirust agent, a preservative, a hydrogen absorber and an electrical property improver, and then subjected to grease homogenizing and degassing in sequence to obtain the filling paste for the OPGW optical cable.
The method for mixing the composite aluminum-based soap with the antioxidant, the antirust agent, the preservative, the hydrogen absorbing agent and the electrical property improving agent is not particularly limited, and all the components can be uniformly mixed by adopting a mixing method well known to a person skilled in the art. The invention preferably adopts stirring to uniformly mix the components.
The method of homogenization is not particularly limited, and homogenization methods well known to those skilled in the art may be employed. In the invention, the homogenization can promote the uniform dispersion of each component, thereby adjusting the cone penetration of the filling paste.
The method of the present invention is not particularly limited, and any degassing method known to those skilled in the art may be used. In the present invention, the degassing can eliminate bubbles generated by the fat balancing, and prevent the presence of bubbles from reducing the performance of the filling paste in use.
The method provided by the invention can fully react the components and form the filling paste with stable property, so that the filling paste has excellent stability in use.
The technical solutions of the present invention will be clearly and completely described in the following in connection with the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The filling paste for the OPGW optical cable is prepared from the following raw materials in parts by weight:
trimethylolpropane ester TRS-001950 parts;
Base oil CTL 500n 24 parts;
74013.8 parts of hydrogenated styrene-isoprene copolymer M;
benzoic acid: 2.5 parts;
9.5 parts of gel KOMAD 8418 VO;
14112.5 parts of rust inhibitor A;
Preservative Rz-o39:0.2 parts;
An antioxidant: high temperature antioxidant WS05:1 part of T501 to 2 parts of;
0.2 parts of hydrogen absorber p-benzoquinone;
3 parts of flame retardant TCP;
HB-6302 parts of electric property improver.
The preparation method of the filling paste for the OPGW optical cable comprises the following steps:
(1) Adding base oil CTL 500N and powdery hydrogenated styrene-isoprene copolymer into a reaction kettle according to a proportion, stirring and dispersing uniformly, gradually heating to 150 ℃ and preserving heat for 1.5 hours until the base oil CTL 500N is completely dissolved, obtaining a liquid plasticizer, and discharging the liquid plasticizer to a vat for later use;
(2) Heating the liquid plasticizer, the trimethylolpropane ester and the flame retardant obtained in the step (1) to 70 ℃ under stirring, adding benzoic acid, then continuously heating at a heating rate of 55 ℃/h to 80 ℃, adding a gel, and then performing saponification reaction, wherein the method comprises the following steps of: continuing heating, keeping the heating speed at 55 ℃/h, stopping heating after the temperature reaches 120 ℃, and keeping the reaction for 0.5h; then heating continuously, keeping the heating speed at 55 ℃/h, stopping heating when the temperature of the mixture reaches 210 ℃, starting cooling at the speed of 25 ℃/h, and obtaining the composite aluminum-based soap when the temperature is reduced to 100 ℃;
(3) And (3) mixing the composite aluminum-based soap obtained in the step (2) with an antioxidant, an antirust agent, a preservative, a hydrogen absorbing agent and an electrical property improving agent, and performing grease homogenizing and degassing to obtain the filling paste for the OPGW optical cable.
The performance test results of the OPGW optical cable filler paste prepared in this example are shown in table 1.
Example 2
The filling paste for the OPGW optical cable is prepared from the following raw materials in parts by weight:
trimethylolpropane ester TRS-001950 parts;
28.5 parts of base oil CTL 500N;
74012 parts of hydrogenated styrene-isoprene copolymer M;
benzoic acid: 2.5 parts;
9.5 parts of gel KOMAD 8418 VO;
14112.5 parts of rust inhibitor A;
Preservative Rz-o39:0.2 parts;
An antioxidant: high temperature antioxidant WS05:1.5 parts of T501 and 0.8 part of a metal alloy;
0.2 parts of hydrogen absorber p-benzoquinone;
3 parts of flame retardant TCP;
HB-6302 parts of electric property improver.
The performance test results of the OPGW optical cable filler paste prepared in this example are shown in table 1.
Example 3
The filling paste for the OPGW optical cable is prepared from the following raw materials in parts by weight:
trimethylolpropane ester TRS-001951 parts;
base oil CTL 500n 25 parts;
74013.8 parts of hydrogenated styrene-isoprene copolymer M;
benzoic acid: 2.5 parts;
9.5 parts of gel KOMAD 8418 VO;
14112.5 parts of rust inhibitor A;
Preservative Rz-o39:0.2 parts;
an antioxidant: high temperature antioxidant WS05:0.8 part of T501 to 1.5 parts of a metal alloy;
0.2 parts of hydrogen absorber p-benzoquinone;
1 part of flame retardant TCP;
HB-6302 parts of electric property improver.
The performance test results of the OPGW optical cable filler paste prepared in this example are shown in table 1.
Comparative example 1
The filling paste for the OPGW optical cable is prepared from the following raw materials in parts by weight:
84.9 parts of base oil CTL 500N;
4 parts of plasticizer 4010 dry glue;
5 parts of thickener bentonite;
1 part of dispersant industrial ethanol;
Antioxidant T501:2.5 parts;
rust inhibitor T702:2.5 parts;
preservative Rz-o39:0.1 part.
The preparation method of the filling paste for the OPGW optical cable comprises the following steps: dissolving powdery plasticizer 4010 into base oil CTL 500N, heating to 150-160 ℃ in a heating kettle, preserving heat for 2h, and transferring to a blending kettle after complete melting; sequentially adding a thickening agent bentonite, a dispersing agent industrial ethanol, an antioxidant T501, an antirust agent T702 and a preservative Rz-o39 into a blending kettle, circularly stirring and dispersing uniformly, pressing and shearing after dispersing uniformly, controlling the pressure to be 1.0-1.2 MP, controlling the shearing time to be 1.5h, and carrying out degassing treatment after the cone penetration test is qualified.
The performance test results of the OPGW optical cable filler paste prepared in this comparative example are shown in table 1.
TABLE 1 Performance test results of filler paste for OPGW optical cable
As can be seen from Table 1, the filling paste provided by the invention has the advantages of large cone penetration, low oil precipitation, drop point paste, strong oxidation resistance, good water resistance, low hydrogen evolution amount, low relative dielectric constant and good flame retardance, so that the filling paste provided by the invention has the advantages of excellent thermal reversibility, oxidation resistance, heat resistance, rust resistance, environmental protection, flame retardance and smoke abatement.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (8)
1. The filling paste for the OPGW optical cable is prepared from the following raw materials in parts by weight:
The gel is a composite aluminum-based system;
the antioxidant consists of a high-temperature antioxidant and a low-temperature antioxidant; the high-temperature antioxidant is amine antioxidant surface-modified tungsten disulfide, and the low-temperature antioxidant is phenol antioxidant.
2. The OPGW optical cable filler paste of claim 1, wherein the gelling agent is an aluminum stearate polymer.
3. The OPGW optical cable filler paste according to claim 1 or 2, wherein the mass ratio of the gelling agent to benzoic acid is (1.5 to 2): 1.
4. The OPGW optical cable filler paste according to claim 1, wherein the mass ratio of the high-temperature antioxidant to the low-temperature antioxidant is 1 (1.5 to 3).
5. The paste for OPGW optical cable according to claim 1, wherein the hydrogen absorber is benzoquinone, p-nitrobenzyl alcohol or 2, 4-dinitrophenol.
6. The OPGW optical cable filler paste of claim 1, wherein the electrical property improver is hydrophobic fumed silica.
7. The method for preparing the filler paste for OPGW optical cable according to any one of claims 1 to 6, comprising the steps of:
(1) Dissolving hydrogenated styrene-isoprene copolymer in base oil to obtain liquid plasticizer;
(2) Mixing the liquid plasticizer obtained in the step (1) with trimethylolpropane ester, a flame retardant, benzoic acid and a gel agent, and performing saponification reaction to obtain the composite aluminum-based soap;
(3) And (3) mixing the composite aluminum-based soap obtained in the step (2) with an antioxidant, an antirust agent, a preservative, a hydrogen absorbing agent and an electrical property improving agent, and sequentially performing grease homogenizing and degassing to obtain the filling paste for the OPGW optical cable.
8. The method according to claim 7, wherein the saponification reaction in the step (2) is: firstly, reacting for 30-40 min at 120-125 ℃, then heating to 210-215 ℃, and then cooling to 100-105 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311403356.5A CN117430962B (en) | 2023-10-26 | 2023-10-26 | Filling paste for OPGW optical cable and preparation method thereof |
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