CN116859537B - Composite optical fiber wire and preparation method thereof - Google Patents

Composite optical fiber wire and preparation method thereof Download PDF

Info

Publication number
CN116859537B
CN116859537B CN202310840935.XA CN202310840935A CN116859537B CN 116859537 B CN116859537 B CN 116859537B CN 202310840935 A CN202310840935 A CN 202310840935A CN 116859537 B CN116859537 B CN 116859537B
Authority
CN
China
Prior art keywords
optical fiber
fiber wire
parts
pentamethylpiperidinyl
stirring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202310840935.XA
Other languages
Chinese (zh)
Other versions
CN116859537A (en
Inventor
周龙冰
彭伟灵
孙合瑞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Sinosyncs Industrial Co ltd
Original Assignee
Dongguan Sinosyncs Industrial Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Sinosyncs Industrial Co ltd filed Critical Dongguan Sinosyncs Industrial Co ltd
Priority to CN202310840935.XA priority Critical patent/CN116859537B/en
Publication of CN116859537A publication Critical patent/CN116859537A/en
Application granted granted Critical
Publication of CN116859537B publication Critical patent/CN116859537B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154—Coating solid articles, i.e. non-hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • 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
    • G02B6/4486—Protective covering
    • G02B6/4488—Protective covering using metallic tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0075—Light guides, optical cables

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

The invention discloses a composite optical fiber wire and a preparation method thereof, which belong to the technical field of optical fiber wires, and the preparation process comprises the following steps: 1) Wrapping a tight sleeve layer material on the surface of the optical fiber through an extruding machine to obtain an optical fiber core material; 2) The optical fiber core material and the filling rope are twisted into a wire core of the optical fiber wire through spiral twisting, aramid yarn is placed on the surface of the wire core to form an inner tensile layer and sleeved in the metal tube, the aramid yarn is placed on the surface of the metal tube to form an outer tensile layer, finally, the outer sheath is extruded through an extruder by using a PVC composite material, and the PVC composite material comprises the following raw materials in parts by weight: 100 parts of PVC resin, 20-30 parts of plasticizer, 15-20 parts of functional component, 4-8 parts of stabilizer and 1 part of lubricant; the invention introduces functional components into the PVC resin base material, and the obtained optical fiber wire has good tracking resistance and flame retardance.

Description

Composite optical fiber wire and preparation method thereof
Technical Field
The invention belongs to the technical field of optical fiber wires, and particularly relates to a composite optical fiber wire and a preparation method thereof.
Background
The optical fiber is a composite material formed by combining a quartz part of an inner layer and an outer coating layer. Not only is the method applied to the conventional communication field, but also is applied to other high-tech fields such as sensing, measurement, control, data acquisition and the like, such as mining industry, aerospace industry, military, petroleum and natural gas, high-temperature medical application and the like.
The field relates to special application environments, such as a strong electric field environment commonly used in a high-voltage transmission line, under the environment, electric potentials generated by capacitive coupling between an optical fiber wire and a high-voltage phase line as well as between the optical fiber wire and the ground can generate different electric potentials on the surface of an optical cable, so that potential differences can cause leakage currents on the surface of the wet or dirty optical fiber wire, the heat generated by the leakage currents can evaporate part of the wet area on the surface of the optical cable to dryness, the leakage currents are instantaneously interrupted to generate dry belt flashover and strong heat, the gradually accumulated heat can damage the optical fiber wire to form corrosion tracks, and therefore the optical fiber wire is required to have good electric leakage tracking resistance.
Disclosure of Invention
The invention aims to provide a composite optical fiber wire and a preparation method thereof, which are used for solving the problem of poor tracking resistance of the existing optical fiber wire.
The aim of the invention can be achieved by the following technical scheme:
The composite optical fiber wire comprises an optical fiber core material, a filling rope, an inner tensile layer, a reinforcing layer, an outer tensile layer and an outer sheath, wherein the optical fiber core material and the filling rope are twisted to form a wire core of the optical fiber wire through spiral twisting, aramid yarns are placed on the surface of the wire core to form the inner tensile layer and are sleeved in a metal tube in a penetrating manner, the metal tube is the reinforcing layer, the aramid yarns are placed on the surface of the metal tube to form the outer tensile layer, and the outer sheath is arranged outside the outer tensile layer.
The preparation method of the composite optical fiber wire comprises the following steps:
Wrapping a tight sleeve layer material with the thickness of 0.3mm and the outer diameter of 0.9mm on the surface of the optical fiber by using an extruder, wherein the tight sleeve layer material is nylon or polyurethane elastomer, so as to obtain an optical fiber core material;
The method comprises the steps of twisting an optical fiber core material and a filling rope through spiral twisting to form a wire core of the optical fiber wire, wherein the filling rope is a solid rope made of nylon or polyurethane elastomer, the diameter of the filling rope is the same as the outer diameter of a tight sleeve layer, aramid yarns are placed on the surface of the wire core to form an inner tensile layer and are sleeved in a metal tube in a penetrating mode, the metal tube is a reinforcing layer, the aramid yarns are placed on the surface of the metal tube to form an outer tensile layer, and finally, an extruder is used for extruding an outer sheath through a PVC composite material.
Further, the PVC composite material is prepared by the following method:
the following raw materials in parts by weight are prepared: 100 parts of PVC resin, 20-30 parts of plasticizer, 15-20 parts of functional component, 4-8 parts of stabilizer and 1 part of lubricant; placing the raw materials into a mixer, mixing for 1h at 145-160 ℃, extruding by adopting a double screw extruder, and granulating, wherein the extrusion temperature is 165-180 ℃.
Further, the functional component is prepared by the following steps:
S11, adding pentamethylpiperidinyl triacrylate, 3-aminopropyl triethoxysilane and THF into a reaction kettle, stirring at 50 ℃ for reaction for 12 hours, and distilling under reduced pressure to remove the THF to obtain an alkenyl-terminated hyperbranched polymer;
S12, regulating the pH value of an ethanol solution to 3-4 by using formic acid, adding an alkenyl-terminated hyperbranched polymer and layered magnesium-aluminum double-metal hydroxide, stirring for 30min, reacting at 50 ℃ for 12h, suction filtering, washing a filter cake by using deionized water, and drying to obtain a modified layered magnesium-aluminum double-metal hydroxide;
S13, adding the modified layered magnesium aluminum double metal hydroxide, glycidyl methacrylate and DMF into a flask, stirring, adding benzoyl peroxide, reacting for 6-8 hours at 60-80 ℃, carrying out suction filtration, washing a filter cake with absolute ethyl alcohol, and drying to obtain the functional component.
Further, the dosage ratio of pentamethylpiperidyl triacrylate, 3-aminopropyl triethoxysilane and THF in S11 is 18.5-19.3g:6.64g:200-400mL, wherein pentamethylpiperidinyl triacrylate and 3-aminopropyl triethoxysilane are used as reaction monomers, and the hyperbranched polymer containing pentamethylpiperidinyl, siloxane structure and unsaturated double bonds is obtained through Michael addition reaction between amino groups and unsaturated double bonds.
Further, the ethanol solution, the alkenyl-terminated hyperbranched polymer and the layered magnesium aluminum double metal hydroxide in the S12 are used in a ratio of 100mL:3-5g:4-8g, and performing condensation reaction on siloxane hydrolysate in the alkenyl-terminated hyperbranched polymer and hydroxyl on the surface of the layered magnesium-aluminum double metal hydroxide to obtain the modified layered magnesium-aluminum double metal hydroxide.
Further, the usage ratio of the modified layered magnesium aluminum double metal hydroxide, the glycidyl methacrylate, the DMF and the benzoyl peroxide in S13 is 7-10g:3-5g:150-200mL:0.1-0.15g, using glycidyl methacrylate as end-capping agent and benzoyl peroxide as initiator, introducing epoxy group through polymerization reaction between unsaturated double bonds, and obtaining the functional component.
Further, pentamethylpiperidinyl triacrylate is prepared by the steps of:
S21, adding 4-hydroxy-1, 2, 6-pentamethylpiperidine, succinic anhydride and DMF into a flask, stirring at 120 ℃ under a nitrogen atmosphere, reacting for 20 hours, and removing DMF by rotary evaporation after the reaction is finished to obtain carboxyl-terminated pentamethylpiperidine;
S22, adding carboxyl-terminated pentamethylpiperidine, EDCI (1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride) and NHS (N-hydroxysuccinimide) into DMSO, stirring for 0.5h, adding tris (hydroxymethyl) aminomethane, stirring for reaction for 24h, and distilling under reduced pressure to remove the DMSO to obtain a pentamethylpiperidinyl trihydroxy compound;
S23, adding the pentamethylpiperidinyl trihydroxy compound, the 2-fluoroacrylic acid and the DMF into a flask, introducing nitrogen, stirring for 20min, adding p-toluenesulfonic acid, heating to reflux for 4-6h, and distilling under reduced pressure to remove the DMF to obtain pentamethylpiperidinyl triacrylate.
Further, the molar ratio of 4-hydroxy-1, 2, 6-pentamethylpiperidine to succinic anhydride in S21 is 1: the dosage ratio of the carboxyl-terminated pentamethylpiperidine, EDCI, NHS, DMSO and the tris (hydroxymethyl) aminomethane in the S22 is 1.3-1.5g:0.96g:0.56g:100-200mL:0.6g, mass ratio of pentamethylpiperidinyl trihydroxy compound to 2-fluoroacrylic acid in S23 is 3.7:0.9-1.0, wherein the dosage of the p-toluenesulfonic acid is 1-1.5% of the sum of the mass of the methylpiperidinyl trihydroxy compound and the mass of the 2-fluoroacrylic acid, firstly, 4-hydroxy-1, 2, 6-pentamethylpiperidine and succinic anhydride are subjected to esterification reaction to obtain carboxyl-terminated pentamethylpiperidine, then the carboxyl-terminated pentamethylpiperidine and the tris (hydroxymethyl) aminomethane are subjected to condensation reaction to obtain the pentamethylpiperidinyl trihydroxy compound, and then the hydroxyl and carboxyl are subjected to esterification reaction to obtain the pentamethylpiperidinyl triacrylate.
Further, the plasticizer is one or more of phthalate, terephthalate and trimellitate, which are mixed according to any proportion.
Further, the stabilizer is one or a mixture of two of a calcium-zinc composite stabilizer and a barium-zinc composite stabilizer.
Further, the lubricant is one of polyethylene wax, oxidized polyethylene wax and mono fatty acid glyceride.
Further, the number of the fiber cores is 1-4, and the number of the filling ropes is 2-4.
Further, the metal tube is manufactured by the steps of:
stainless steel wires with the diameters of 0.5mm-1.0mm are pressed into metal bands with the thicknesses of 0.18mm-0.4mm and the widths of 0.75mm-1.8mm through a wire flatting mill, the metal bands pass through a long-length automatic pipe making machine to be prepared into spiral metal pipes, and the metal pipes are obtained through back-twisting treatment.
The invention has the beneficial effects that:
The invention provides a composite optical fiber wire and a preparation method thereof, which adopts a PVC composite material as an outer sheath of the optical fiber wire, solves the problem of poor tracking resistance of the existing PVC sheath material, the PVC composite material comprises PVC resin and functional components, the functional components are hyperbranched polymer modified layered magnesium aluminum double-metal hydroxide capped by epoxy groups, compared with the pure layered magnesium aluminum double-metal hydroxide, the modified layered magnesium aluminum double-metal hydroxide has improved hydrophobicity, improves the compatibility with the PVC resin, introduces pentamethylpiperidine structure, fluorine element and silicon element on the surface of the layered magnesium aluminum double-metal hydroxide, introduces the functional components into the PVC resin, forms a compact double-metal composite oxide barrier layer in the PVC under the action of high-voltage arc discharge, plays an excellent sheet barrier role, inhibits further degradation of the PVC and generation and development of tracking, the fluorine atoms in the structure play a role in dissipating charges and simultaneously reduce charge accumulation, further reduce PVC degradation, the pentamethylpiperidine structure in the structure can effectively quench peroxy free radicals generated by PVC forced by high-voltage electric arcs, inhibit oxidation degradation of PVC, epoxy groups at the end can capture Cl generated in the PVC degradation process, terminate free radical reaction of PVC degradation, further improve PVC tracking resistance, in addition, the layered magnesium aluminum double hydroxide has the advantages of both aluminum hydroxide and magnesium hydroxide, has good flame retardant property, can reduce CO release amount and heat release in the combustion process of PVC materials, and the pentamethylpiperidine structure can quench free radicals generated in the combustion process of PVC, combines with the introduction of flame retardant element silicon, so that the PVC composite material has good flame retardant property, the composite optical fiber wire prepared by the invention not only has good tracking resistance, but also has good flame retardant property.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
Examples
A pentamethylpiperidinyl triacrylate prepared by the steps of:
s21, adding 0.1mol of 4-hydroxy-1, 2, 6-pentamethylpiperidine, 0.1mol of succinic anhydride and 200mL of DMF into a flask, stirring at 120 ℃ under nitrogen atmosphere, reacting for 20h, and removing the DMF by rotary evaporation after the reaction is finished to obtain carboxyl-terminated pentamethylpiperidine;
S22, adding 1.3g of carboxyl-terminated pentamethylpiperidine, 0.96g of EDCI and 0.56g of NHS into 100mL of DMSO, stirring for 0.5h, adding 0.6g of tris (hydroxymethyl) aminomethane, stirring for 24h, and distilling under reduced pressure to remove the DMSO to obtain a pentamethylpiperidinyl trihydroxy compound;
s23, adding 3.7g of pentamethylpiperidinyl trihydroxy compound, 0.9g of 2-fluoroacrylic acid and 50mL of DMF into a flask, introducing nitrogen, stirring for 20min, adding p-toluenesulfonic acid, heating to reflux for 4h, distilling under reduced pressure to remove DMF, and obtaining pentamethylpiperidinyl triacrylate, wherein the dosage of the p-toluenesulfonic acid is 1% of the sum of the mass of the pentamethylpiperidinyl trihydroxy compound and the mass of the 2-fluoroacrylic acid.
Examples
A pentamethylpiperidinyl triacrylate prepared by the steps of:
s21, adding 0.1mol of 4-hydroxy-1, 2, 6-pentamethylpiperidine, 0.1mol of succinic anhydride and 200mL of DMF into a flask, stirring at 120 ℃ under nitrogen atmosphere, reacting for 20h, and removing the DMF by rotary evaporation after the reaction is finished to obtain carboxyl-terminated pentamethylpiperidine;
S22, adding 1.5g of carboxyl-terminated pentamethylpiperidine, 0.96g of EDCI and 0.56g of NHS into 200mL of DMSO, stirring for 0.5h, adding 0.6g of tris (hydroxymethyl) aminomethane, stirring for 24h, and distilling under reduced pressure to remove the DMSO to obtain a pentamethylpiperidinyl trihydroxy compound;
S23, adding 3.7g of pentamethylpiperidinyl trihydroxy compound, 1.0g of 2-fluoroacrylic acid and 100mL of DMF into a flask, introducing nitrogen, stirring for 20min, adding p-toluenesulfonic acid, heating to reflux for 6h, distilling under reduced pressure to remove DMF, and obtaining pentamethylpiperidinyl triacrylate, wherein the dosage of the p-toluenesulfonic acid is 1.5% of the sum of the mass of the pentamethylpiperidinyl trihydroxy compound and the mass of the 2-fluoroacrylic acid.
Comparative example 1
The comparative example is trimethylolpropane triacrylate.
Examples
A PVC composite material is prepared by the following method:
The following raw materials in parts by weight are prepared: 100 parts of PVC resin, 20 parts of phthalate, 15 parts of functional components, 4 parts of calcium-zinc composite stabilizer and 1 part of polyethylene wax; placing the raw materials into a mixer, mixing for 1h at 145 ℃, extruding by adopting a double screw extruder, and granulating, wherein the extrusion temperature is 165-180 ℃;
The functional components are prepared by the following steps:
S11, adding 18.5g of pentamethylpiperidyl triacrylate in the embodiment 1, 6.64g of 3-aminopropyl triethoxysilane and 200mL of THF into a reaction kettle, stirring at 50 ℃ for reaction for 12 hours, and distilling under reduced pressure to remove the THF to obtain an alkenyl-terminated hyperbranched polymer;
S12, regulating the pH value of an ethanol solution to 3-4 by using 100mL of formic acid, adding 3g of alkenyl-terminated hyperbranched polymer and 4g of lamellar magnesium-aluminum double-metal hydroxide, stirring for 30min, reacting for 12h at 50 ℃, carrying out suction filtration, washing a filter cake by using deionized water, and drying to obtain a modified lamellar magnesium-aluminum double-metal hydroxide, wherein the ratio [ n (MgO)/n (Al 2O3) ] of the lamellar magnesium-aluminum double-metal hydroxide to magnesium-aluminum is 4.21, the interlayer anions are sulfate ions, the interlayer spacing is 0.76nm, the average lamellar diameter and thickness are 0.44 mu m and 40nm respectively, and the modified lamellar magnesium-aluminum double-metal hydroxide is purchased from Dendong pine chemical Co Ltd;
S13, adding 7g of modified layered magnesium aluminum double metal hydroxide, 3g of glycidyl methacrylate and 150mL of DMF into a flask, stirring, adding 0.1g of benzoyl peroxide, reacting for 6 hours at 60 ℃, carrying out suction filtration, washing a filter cake with absolute ethyl alcohol, and drying to obtain a functional component.
Examples
A PVC composite material is prepared by the following method:
The following raw materials in parts by weight are prepared: 100 parts of PVC resin, 30 parts of terephthalate, 20 parts of functional components, 8 parts of barium-zinc composite stabilizer and 1 part of oxidized polyethylene wax; placing the raw materials into a mixer, mixing for 1h at 160 ℃, extruding by adopting a double screw extruder, and granulating, wherein the extruding temperature is 165-180 ℃;
The functional components are prepared by the following steps:
S11, adding 19.3g of pentamethylpiperidyl triacrylate in the embodiment 2, 6.64g of 3-aminopropyl triethoxysilane and 400mL of THF into a reaction kettle, stirring at 50 ℃ for reaction for 12 hours, and distilling under reduced pressure to remove the THF to obtain an alkenyl-terminated hyperbranched polymer;
S12, adjusting the pH value of an ethanol solution to 3-4 by using 100mL of formic acid, adding 5g of alkenyl-terminated hyperbranched polymer and 8g of layered magnesium-aluminum double metal hydroxide, stirring for 30min, reacting at 50 ℃ for 12h, carrying out suction filtration, washing a filter cake with deionized water, and drying to obtain a modified layered magnesium-aluminum double metal hydroxide, wherein the layered magnesium-aluminum double metal hydroxide is the same as in example 3;
S13, adding 10g of modified layered magnesium aluminum double metal hydroxide, 5g of glycidyl methacrylate and 200mL of DMF into a flask, stirring, adding 0.15g of benzoyl peroxide, reacting for 8 hours at 80 ℃, carrying out suction filtration, washing a filter cake with absolute ethyl alcohol, and drying to obtain a functional component.
Comparative example 2
In comparison with example 3, the functional component of this comparative example is the product obtained in step S12 of example 3, namely, the modified layered magnesium aluminum double hydroxide.
Comparative example 3
In comparison with example 3, the pentamethylpiperidinyl triacrylate in step S11 of example 3 was replaced with the substance of comparative example 1, with the remaining starting materials and preparation process unchanged.
The PVC composite materials obtained in example 3, example 4, comparative example 2 and comparative example 3 were tested according to GB/T2406-1993 Limiting Oxygen Index (LOI), and the test results are shown in Table 1:
TABLE 1
As can be seen from table 1, the PVC composites obtained in example 3 and example 4 have better flame retardant properties than comparative example 2 and comparative example 3.
Examples
The preparation method of the composite optical fiber wire comprises the following steps:
1) Wrapping a tight sleeve layer material with the thickness of 0.3mm and the outer diameter of 0.9mm on the surface of the optical fiber by using an extruder, wherein the tight sleeve layer material is nylon or polyurethane elastomer, so as to obtain an optical fiber core material;
2) The optical fiber core material and the filling rope are twisted into a wire core of the optical fiber wire through spiral twisting, the filling rope is a solid rope made of nylon or polyurethane elastomer, the diameter of the filling rope is the same as the outer diameter of the tight sleeve layer, aramid yarns are placed on the surface of the wire core to form an inner tensile layer and are sleeved in the metal tube in a penetrating manner, the metal tube is a reinforcing layer, the aramid yarns are placed on the surface of the metal tube to form an outer tensile layer, and finally the outer sheath is extruded through an extruding machine by using the PVC composite material of the embodiment 3.
Wherein, optical fiber core material is 1, and the filling rope is 2, and the tubular metal resonator is made through following step:
Stainless steel wires with the diameter of 0.5mm are pressed into metal bands with the thickness of 0.18mm and the width of 0.75mm by a wire flatting mill, the metal bands are manufactured into spiral metal tubes by a long-length automatic tube making machine, and the metal tubes are obtained by back-twisting treatment.
Examples
Compared with the embodiment 5, the number of the fiber cores is 2, the number of the filling ropes is 3, the PVC composite material adopts the substances in the embodiment 4, and the rest raw materials and the preparation process are the same as the embodiment 5.
Examples
Compared with the embodiment 5, the number of the fiber cores is 4, the number of the filling ropes is 4, the PVC composite material adopts the substances in the embodiment 4, and the rest raw materials and the preparation process are the same as the embodiment 5.
Comparative example 4
Compared with example 5, the PVC composite material adopts the substance in comparative example 2, and the rest raw materials and the preparation process are the same as example 5.
Comparative example 5
Compared with example 5, the PVC composite material adopts the substance in comparative example 3, and the rest raw materials and the preparation process are the same as example 5.
The jacket layers of the composite optical fiber wires obtained in examples 5 to 7 and comparative examples 4 to 5 were tested for electrical corrosion resistance according to test mode GB/T-6553-2014, and the test results are shown in table 2:
TABLE 2
Project Example 5 Example 6 Example 7 Comparative example 4 Comparative example 5
Depth of erosion/mm 0.07 0.05 0.05 0.2 0.3
Tracking/grading resistance ＞2A4.5 ＞2A4.5 ＞2A4.5 Failed through 2A4.5 Failed through 2A4.5
As can be seen from table 2, the composite optical fiber wires obtained in example 5, example 6 and example 7 were stronger in tracking resistance than those in comparative example 4 and comparative example 5.
In conclusion, the composite optical fiber wire prepared by the invention has good tracking resistance and good flame retardance.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The preparation method of the composite optical fiber wire is characterized by comprising the following steps:
wrapping a tight sleeve layer material on the surface of the optical fiber through an extruding machine to obtain an optical fiber core material;
the following raw materials in parts by weight are prepared: 100 parts of PVC resin, 20-30 parts of plasticizer, 15-20 parts of functional component, 4-8 parts of stabilizer and 1 part of lubricant; mixing the raw materials, extruding and granulating to obtain a PVC composite material;
twisting an optical fiber core material and a filling rope into a wire core through spiral twisting, placing aramid yarns on the surface of the wire core to form an inner tensile layer and sleeving the inner tensile layer in a metal pipe in a penetrating manner, placing the aramid yarns on the surface of the metal pipe to form an outer tensile layer, and finally extruding an outer sheath through an extruder by utilizing a PVC composite material;
The functional components are prepared by the following steps:
s11, mixing pentamethylpiperidinyl triacrylate, 3-aminopropyl triethoxysilane and THF, and stirring at 50 ℃ for reaction for 12 hours to obtain an alkenyl-terminated hyperbranched polymer;
S12, regulating the pH value of an ethanol solution to 3-4 by formic acid, adding an alkenyl-terminated hyperbranched polymer and a layered magnesium-aluminum double-metal hydroxide, stirring for 30min, and reacting at 50 ℃ for 12h to obtain a modified layered magnesium-aluminum double-metal hydroxide;
S13, mixing the modified layered magnesium aluminum double metal hydroxide, glycidyl methacrylate and DMF, stirring, adding benzoyl peroxide, and reacting at 60-80 ℃ for 6-8 hours to obtain the functional component.
2. The method for preparing a composite optical fiber wire according to claim 1, wherein the dosage ratio of pentamethylpiperidinyl triacrylate, 3-aminopropyl triethoxysilane and THF in S11 is 18.5-19.3g:6.64g:200-400mL.
3. The preparation method of the composite optical fiber wire rod according to claim 1, wherein the dosage ratio of the ethanol solution, the alkenyl-terminated hyperbranched polymer and the layered magnesium aluminum double hydroxide in the S12 is 100mL:3-5g:4-8g.
4. The method for preparing a composite optical fiber wire according to claim 1, wherein the amount ratio of the modified layered magnesium aluminum double hydroxide, glycidyl methacrylate, DMF and benzoyl peroxide in S13 is 7-10g:3-5g:150-200mL:0.1-0.15g.
5. The method for preparing a composite optical fiber wire according to claim 1, wherein the pentamethylpiperidinyl triacrylate is prepared by:
s21, adding 4-hydroxy-1, 2, 6-pentamethylpiperidine, succinic anhydride and DMF into a flask, and stirring and reacting at 120 ℃ for 20 hours under the nitrogen atmosphere to obtain carboxyl-terminated pentamethylpiperidine;
S22, adding carboxyl-terminated pentamethylpiperidine, EDCI and NHS into DMSO, stirring for 0.5h, adding tris (hydroxymethyl) aminomethane, and stirring for 24h to obtain a pentamethylpiperidinyl trihydroxy compound;
S23, adding the pentamethylpiperidinyl trihydroxy compound, the 2-fluoroacrylic acid and the DMF into a flask, introducing nitrogen, stirring for 20min, adding p-toluenesulfonic acid, and heating to reflux for 4-6h to obtain pentamethylpiperidinyl triacrylate.
6. The method for preparing a composite optical fiber wire according to claim 5, wherein the molar ratio of 4-hydroxy-1, 2, 6-pentamethylpiperidine to succinic anhydride in S21 is 1:1.
7. The method for preparing a composite optical fiber wire according to claim 5, wherein the dosage ratio of carboxyl-terminated pentamethylpiperidine, EDCI, NHS, DMSO and tris (hydroxymethyl) aminomethane in S22 is 1.3-1.5g:0.96g:0.56g:100-200mL:0.6g.
8. The method for preparing a composite optical fiber wire according to claim 5, wherein the mass ratio of the pentamethylpiperidinyl trihydroxy compound to the 2-fluoroacrylic acid in S23 is 3.7:0.9 to 1.0 percent, and the dosage of the p-toluenesulfonic acid is 1 to 1.5 percent of the mass sum of the methylpiperidinyl trihydroxy compound and the 2-fluoroacrylic acid.
9. A composite optical fiber wire produced by the production method according to any one of claims 1 to 8.
CN202310840935.XA 2023-07-11 2023-07-11 Composite optical fiber wire and preparation method thereof Active CN116859537B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310840935.XA CN116859537B (en) 2023-07-11 2023-07-11 Composite optical fiber wire and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310840935.XA CN116859537B (en) 2023-07-11 2023-07-11 Composite optical fiber wire and preparation method thereof

Publications (2)

Publication Number Publication Date
CN116859537A CN116859537A (en) 2023-10-10
CN116859537B true CN116859537B (en) 2024-06-07

Family

ID=88218624

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310840935.XA Active CN116859537B (en) 2023-07-11 2023-07-11 Composite optical fiber wire and preparation method thereof

Country Status (1)

Country Link
CN (1) CN116859537B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104409132A (en) * 2014-11-28 2015-03-11 李聪 Environment-friendly cable and manufacturing method thereof
CN105182485A (en) * 2015-06-01 2015-12-23 江苏金迪电子科技有限公司 Transmission optical fiber protection sleeve for optical fiber temperature measuring instrument and processing technology thereof
CN110951188A (en) * 2019-12-11 2020-04-03 上海凯波特种电缆料厂有限公司 Tracking-resistant polyvinyl chloride insulating material and preparation method and application thereof
CN114539690A (en) * 2022-03-21 2022-05-27 昆山德斯源机电设备有限公司 Oil-resistant and anti-corrosion PVC cable material and preparation method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100625803B1 (en) * 2003-04-04 2006-09-20 엘에스전선 주식회사 Tracking resistant resin composition and the cable using thereit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104409132A (en) * 2014-11-28 2015-03-11 李聪 Environment-friendly cable and manufacturing method thereof
CN105182485A (en) * 2015-06-01 2015-12-23 江苏金迪电子科技有限公司 Transmission optical fiber protection sleeve for optical fiber temperature measuring instrument and processing technology thereof
CN110951188A (en) * 2019-12-11 2020-04-03 上海凯波特种电缆料厂有限公司 Tracking-resistant polyvinyl chloride insulating material and preparation method and application thereof
CN114539690A (en) * 2022-03-21 2022-05-27 昆山德斯源机电设备有限公司 Oil-resistant and anti-corrosion PVC cable material and preparation method thereof

Also Published As

Publication number Publication date
CN116859537A (en) 2023-10-10

Similar Documents

Publication Publication Date Title
US10875939B2 (en) Polymer composition comprising a polyolefin produced in a high pressure process, a high pressure process and an article
US20020001715A1 (en) Low-smoke self-extinguishing electrical cable and flame-retardant composition used therein
EP2630187A1 (en) A semiconductive polyolefin composition which contains epoxy-groups
WO2012052077A1 (en) A cable comprising a layer which is formed of a composition containing epoxy-groups
KR102184438B1 (en) Interpolymer compositions and methods for making same
WO2010072396A1 (en) Masterbatch and process for preparing a polymer composition
AU752421B2 (en) Low-smoke self-extinguishing electrical cable and flame-retardant composition used therein
CN105733130B (en) One kind insulation cold-resistant flexible cable
CN116859537B (en) Composite optical fiber wire and preparation method thereof
CN107001729A (en) Polymer composition and cable with superior electrical property
RU2614138C2 (en) Polymer composition for electric devices
CA2969262A1 (en) High pressure radical polymerisation process for a copolymer of ethylene with silane groups containing comonomer
CN116936170A (en) High-temperature-resistant composite cable for electric automobile
US9321896B2 (en) Polymer composition
DE112017001675T5 (en) Isolated electric wire
JP6631157B2 (en) Railway vehicle electric wire and railway vehicle cable using phosphorus-free non-halogen flame-retardant resin composition
CN117524562B (en) Molten steel sputtering prevention tensile moving round cable
JP2022119412A (en) Resin composition, electric wire and cable
JPH08315646A (en) Fluorine-containing elastomer covered electric wire/ cable
JP6631158B2 (en) Railway vehicle electric wire and railway vehicle cable using phosphorus-free non-halogen flame-retardant resin composition
JP2024086059A (en) Vinyl chloride resin composition, electric wire and cable using same
CN117534707A (en) Organophosphorus nitrogen sulfur compound and preparation method and application thereof
JPS6210110A (en) Electrical-insulating crosslinked ethylene copolymer
CN116285089A (en) Water-blocking type low-smoke halogen-free flame-retardant cable material and preparation method thereof
CN116970228A (en) Low-smoke halogen-free environment-friendly household cable

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant