CN117275804A - Anti-aging insulating polyvinyl chloride net wire - Google Patents
Anti-aging insulating polyvinyl chloride net wire Download PDFInfo
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- CN117275804A CN117275804A CN202311454236.8A CN202311454236A CN117275804A CN 117275804 A CN117275804 A CN 117275804A CN 202311454236 A CN202311454236 A CN 202311454236A CN 117275804 A CN117275804 A CN 117275804A
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- China
- Prior art keywords
- polyvinyl chloride
- aging
- aging insulating
- net wire
- inorganic filler
- Prior art date
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- 229920000915 polyvinyl chloride Polymers 0.000 title claims abstract description 149
- 239000004800 polyvinyl chloride Substances 0.000 title claims abstract description 149
- 230000003712 anti-aging effect Effects 0.000 title claims abstract description 80
- 239000000843 powder Substances 0.000 claims abstract description 52
- 239000002994 raw material Substances 0.000 claims abstract description 33
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 28
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 28
- 239000011256 inorganic filler Substances 0.000 claims abstract description 27
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 27
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000032683 aging Effects 0.000 claims abstract description 5
- 239000011257 shell material Substances 0.000 claims description 34
- 238000003756 stirring Methods 0.000 claims description 26
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000001125 extrusion Methods 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 14
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 14
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 9
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 9
- 150000008301 phosphite esters Chemical class 0.000 claims description 9
- 238000002791 soaking Methods 0.000 claims description 9
- 239000000155 melt Substances 0.000 claims description 8
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 claims description 7
- 239000004115 Sodium Silicate Substances 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910001382 calcium hypophosphite Inorganic materials 0.000 claims description 7
- 229940064002 calcium hypophosphite Drugs 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 239000011541 reaction mixture Substances 0.000 claims description 7
- 229910001379 sodium hypophosphite Inorganic materials 0.000 claims description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 7
- CNALVHVMBXLLIY-IUCAKERBSA-N tert-butyl n-[(3s,5s)-5-methylpiperidin-3-yl]carbamate Chemical compound C[C@@H]1CNC[C@@H](NC(=O)OC(C)(C)C)C1 CNALVHVMBXLLIY-IUCAKERBSA-N 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- DQSYGNJXYMAPMV-UHFFFAOYSA-N 2,6-ditert-butyl-4-(3,5-ditert-butyl-4-hydroxyphenyl)sulfanylphenol Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(SC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 DQSYGNJXYMAPMV-UHFFFAOYSA-N 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 18
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 230000008054 signal transmission Effects 0.000 abstract 1
- 230000002195 synergetic effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 229910052809 inorganic oxide Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/16—Insulating conductors or cables by passing through or dipping in a liquid bath; by spraying
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/30—Drying; Impregnating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The invention relates to an anti-aging insulating polyvinyl chloride net wire, and belongs to the technical field of polyvinyl chloride materials. The anti-aging insulating polyvinyl chloride net wire consists of a wire core, a braided shielding layer and an anti-aging insulating layer; the raw materials of the anti-aging insulating layer comprise grafted polyvinyl chloride powder, an antioxidant, an inorganic filler and an organic impregnant. According to the scheme provided by the invention, butyl acrylate is introduced into a polyvinyl chloride molecular chain, so that the dispersibility and compatibility of the inorganic filler are effectively improved, the ageing resistance and corrosion resistance of the inorganic filler can be improved by synergistic effect with the organic impregnant, and the problem that the network cable is easy to oxidize and age under special environment so as to influence signal transmission is solved.
Description
Technical Field
The invention belongs to the technical field of polyvinyl chloride materials, and relates to an anti-aging insulating polyvinyl chloride net wire.
Background
With the rise of networks, the use amount of network wires is also increased sharply, and new requirements are also put on the performance of the network wires. Although the existing network cable can meet most of requirements, in some special use environments, such as high-temperature environments, the existing network cable is easy to age, so that the quality of network cable transmission signals is affected, and in order to solve the problem, an insulating polyvinyl chloride network cable with good ageing resistance needs to be provided.
Disclosure of Invention
The invention aims to provide an anti-aging insulating polyvinyl chloride net wire which has the characteristics of aging resistance, oxidation resistance and corrosion resistance.
The aim of the invention can be achieved by the following technical scheme:
the anti-aging insulating polyvinyl chloride net wire is characterized by comprising a wire core, a braided shielding layer and an anti-aging insulating layer;
the raw materials of the anti-aging insulating layer comprise grafted polyvinyl chloride powder, an antioxidant, an inorganic filler and an organic impregnant.
As a preferred technical scheme of the invention, the preparation of the grafted polyvinyl chloride powder comprises the following steps:
adding polyvinyl chloride powder into N, N-dimethylformamide, stirring uniformly to enable the polyvinyl chloride powder to be fully dispersed, then adding butyl acrylate and di-tert-butyl peroxide, continuously stirring, heating to 70-90 ℃, and continuously reacting for 1-3 hours;
and W2, filtering out a reaction mixture after the reaction is finished, washing and drying to obtain grafted polyvinyl chloride powder.
As a preferred technical scheme of the invention, the antioxidant consists of phosphite ester and any one of 2, 6-di-tert-butyl-4-methylphenol and bis (3, 5-di-tert-butyl-4-hydroxyphenyl) thioether.
As a preferable technical scheme of the invention, the mass ratio of any one of the 2, 6-di-tert-butyl-4-methylphenol, the bis (3, 5-di-tert-butyl-4-hydroxyphenyl) sulfide and the phosphite ester is 75-85:45-50.
As a preferable technical scheme of the invention, the inorganic filler consists of calcium hypophosphite, sodium hypophosphite and sodium silicate with the mass ratio of 12-15:6-8:8-12.
As a preferable technical scheme of the invention, the organic leaches refer to a tetraisopropyl titanate solution with the concentration of 15-20%.
As a preferable technical scheme of the invention, the preparation method of the anti-aging insulating polyvinyl chloride net wire comprises the following steps:
x1. placing the grafted polyvinyl chloride powder, the antioxidant and the inorganic filler into a high-speed stirrer for stirring to obtain a mixed raw material;
x2. feeding the mixed raw materials into a double-screw extruder, carrying out melt extrusion, and placing the mixed raw materials on a roller for open mixing to obtain a polyvinyl chloride shell material;
x3. the polyvinyl chloride shell material is placed in an organic impregnant for soaking treatment, the soaking is continued for 25-30 min, then the heat treatment is carried out, and the ageing-resistant polyvinyl chloride shell material is obtained after cooling to room temperature;
x4. extruding the anti-aging polyvinyl chloride shell material on the outer surface of the wire core wrapped with the braided shielding layer to obtain the anti-aging insulating polyvinyl chloride net wire.
As a preferable technical scheme of the invention, the mass ratio of the grafted polyvinyl chloride powder to the antioxidant to the inorganic filler in the step X1 is 1200-1600:80-90:25-30;
as a preferable technical scheme of the invention, the stirring temperature in the high-speed stirrer is 130-170 ℃ and the stirring time is 14-18 min.
As a preferable technical scheme of the invention, the temperature of the melt extrusion in the step X2 is 190-210 ℃, and the temperature of the roller open mill is 175-195 ℃.
As a preferable technical scheme of the invention, the heat treatment in the step X3 means that the relative humidity is controlled to be 35-45%, nitrogen and oxygen with the volume ratio of 6:4 are continuously introduced, and the mixture is heated to 65-75 ℃ for continuous drying for 15-25 min.
The invention has the beneficial effects that:
the formula and the preparation method of the anti-aging insulating polyvinyl chloride net wire provided by the invention can enable the polyvinyl chloride net wire to have good anti-aging performance; the antioxidant can remove free radicals in the anti-aging insulating polyvinyl chloride net wire to a certain extent, the insulating polyvinyl chloride shell material is subjected to organic leaching agent impregnation and heat treatment, a layer of compact inorganic oxide film can be formed on the surface of the shell, and a grafted polyvinyl chloride-inorganic filler-inorganic oxide film structure with good stability is formed by the insulating polyvinyl chloride shell material, grafted polyvinyl chloride and inorganic filler, so that the anti-aging insulating polyvinyl chloride net wire can be well isolated from water and corrosive substances in the environment, and the anti-aging capacity and the corrosion resistance of the insulating polyvinyl chloride shell material are improved together.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description is given below with reference to the embodiments, structures, features and effects according to the present invention.
Example 1
The anti-aging insulating polyvinyl chloride net wire is characterized by comprising a wire core, a braided shielding layer and an anti-aging insulating polyvinyl chloride material;
the raw materials of the anti-aging insulating polyvinyl chloride material comprise grafted polyvinyl chloride powder, an antioxidant, an inorganic filler and an organic impregnant.
The antioxidant consists of 2, 6-di-tert-butyl-4-methylphenol and phosphite ester according to the mass ratio of 75:45.
The inorganic filler consists of calcium hypophosphite, sodium hypophosphite and sodium silicate in the mass ratio of 12:6:8.
The preparation of the grafted polyvinyl chloride powder comprises the following steps:
w1, adding polyvinyl chloride powder into N, N-dimethylformamide, stirring uniformly to enable the polyvinyl chloride powder to be fully dispersed, then adding butyl acrylate and di-tert-butyl peroxide, continuously stirring, heating to 70 ℃, and continuously reacting for 3 hours; the mass ratio of the polyvinyl chloride powder to the butyl acrylate is 150:25;
and W2, filtering out a reaction mixture after the reaction is finished, washing and drying to obtain grafted polyvinyl chloride powder.
The preparation method of the anti-aging insulating polyvinyl chloride net wire comprises the following steps:
x1., placing the grafted polyvinyl chloride powder, the antioxidant and the inorganic filler into a high-speed stirrer according to the mass ratio of 1200:80:25, stirring at 130 ℃ for 18min to obtain a mixed raw material;
x2. feeding the mixed raw materials into a double-screw extruder, carrying out melt extrusion, and then placing the mixed raw materials in a roller mill to obtain an insulating polyvinyl chloride shell material, wherein the temperature of the melt extrusion is 190 ℃, and the temperature of the roller mill is 175 ℃;
x3. soaking the insulating polyvinyl chloride shell material in a 15% tetraisopropyl titanate solution for 25min, controlling the relative humidity to be 35%, continuously introducing nitrogen and oxygen in a volume ratio of 6:4, heating to 65 ℃ for continuous drying for 25min, and cooling to room temperature to obtain the anti-aging insulating polyvinyl chloride shell material;
x4. extruding the anti-aging insulating polyvinyl chloride shell material on the outer surface of the wire core wrapped with the braided shielding layer to obtain the anti-aging insulating polyvinyl chloride net wire.
Example 2
The anti-aging insulating polyvinyl chloride net wire is characterized by comprising a wire core, a braided shielding layer and an anti-aging insulating polyvinyl chloride material;
the raw materials of the anti-aging insulating polyvinyl chloride material comprise grafted polyvinyl chloride powder, an antioxidant, an inorganic filler and an organic impregnant.
The antioxidant consists of bis (3, 5-di-tert-butyl-4-hydroxyphenyl) sulfide and phosphite ester according to the mass ratio of 80:47.
The inorganic filler consists of calcium hypophosphite, sodium hypophosphite and sodium silicate in the mass ratio of 13:7:10.
The preparation of the grafted polyvinyl chloride powder comprises the following steps:
w1, adding polyvinyl chloride powder into N, N-dimethylformamide, stirring uniformly to enable the polyvinyl chloride powder to be fully dispersed, then adding butyl acrylate and di-tert-butyl peroxide, continuously stirring, heating to 80 ℃, and continuously reacting for 2 hours; the mass ratio of the polyvinyl chloride powder to the butyl acrylate is 175:27;
and W2, filtering out a reaction mixture after the reaction is finished, washing and drying to obtain grafted polyvinyl chloride powder.
The preparation method of the anti-aging insulating polyvinyl chloride net wire comprises the following steps:
x1. the grafted polyvinyl chloride powder, the antioxidant and the inorganic filler are placed in a high-speed stirrer according to the mass ratio of 1400:85:27 for stirring at 150 ℃ for 16min to obtain a mixed raw material;
x2. feeding the mixed raw materials into a double-screw extruder, carrying out melt extrusion, and then placing the mixed raw materials in a roller mill to obtain an insulating polyvinyl chloride shell material, wherein the temperature of the melt extrusion is 200 ℃, and the temperature of the roller mill is 185 ℃;
x3. soaking the insulating polyvinyl chloride shell material in 17% tetraisopropyl titanate solution for 27min, controlling the relative humidity to 40%, continuously introducing nitrogen and oxygen in a volume ratio of 6:4, heating to 70 ℃, continuously drying for 20min, and cooling to room temperature to obtain the anti-aging insulating polyvinyl chloride shell material;
x4. extruding the anti-aging insulating polyvinyl chloride shell material on the outer surface of the wire core wrapped with the braided shielding layer to obtain the anti-aging insulating polyvinyl chloride net wire.
Example 3
The anti-aging insulating polyvinyl chloride net wire is characterized by comprising a wire core, a braided shielding layer and an anti-aging insulating polyvinyl chloride material;
the raw materials of the anti-aging insulating polyvinyl chloride material comprise grafted polyvinyl chloride powder, an antioxidant, an inorganic filler and an organic impregnant.
The antioxidant consists of 2, 6-di-tert-butyl-4-methylphenol and phosphite ester according to the mass ratio of 85:50.
The inorganic filler consists of calcium hypophosphite, sodium hypophosphite and sodium silicate with the mass ratio of 12-15:6-8:8-12.
The preparation of the grafted polyvinyl chloride powder comprises the following steps:
w1, adding polyvinyl chloride powder into N, N-dimethylformamide, stirring uniformly to enable the polyvinyl chloride powder to be fully dispersed, then adding butyl acrylate and di-tert-butyl peroxide, continuously stirring, heating to 90 ℃, and continuously reacting for 1h; the mass ratio of the polyvinyl chloride powder to the butyl acrylate is 180:30;
and W2, filtering out a reaction mixture after the reaction is finished, washing and drying to obtain grafted polyvinyl chloride powder.
The preparation method of the anti-aging insulating polyvinyl chloride net wire comprises the following steps:
x1., placing the grafted polyvinyl chloride powder, the antioxidant and the inorganic filler into a high-speed stirrer according to the mass ratio of 1600:90:30, stirring at 170 ℃ for 14min to obtain a mixed raw material;
x2. feeding the mixed raw materials into a double-screw extruder, carrying out melt extrusion, and then placing the mixed raw materials in a roller mill to obtain an insulating polyvinyl chloride shell material, wherein the temperature of the melt extrusion is 210 ℃, and the temperature of the roller mill is 195 ℃;
x3. soaking the insulating polyvinyl chloride shell material in a 20% tetraisopropyl titanate solution for 30min, controlling the relative humidity to be 45%, continuously introducing nitrogen and oxygen in a volume ratio of 6:4, heating to 75 ℃, continuously drying for 25min, and cooling to room temperature to obtain the anti-aging insulating polyvinyl chloride shell material;
x4. extruding the anti-aging insulating polyvinyl chloride shell material on the outer surface of the wire core wrapped with the braided shielding layer to obtain the anti-aging insulating polyvinyl chloride net wire.
Comparative example 1
The anti-aging insulating polyvinyl chloride net wire is characterized by comprising a wire core, a braided shielding layer and an anti-aging insulating polyvinyl chloride material;
the raw materials of the anti-aging insulating polyvinyl chloride material comprise polyvinyl chloride powder, an antioxidant, an inorganic filler and an organic impregnant.
The antioxidant consists of 2, 6-di-tert-butyl-4-methylphenol and phosphite ester according to the mass ratio of 85:50.
The inorganic filler consists of calcium hypophosphite, sodium hypophosphite and sodium silicate with the mass ratio of 12-15:6-8:8-12.
The preparation method of the anti-aging insulating polyvinyl chloride net wire comprises the following steps:
x1., placing polyvinyl chloride powder, an antioxidant and an inorganic filler into a high-speed stirrer according to the mass ratio of 1600:90:30, stirring at 170 ℃ for 14min to obtain a mixed raw material;
x2. feeding the mixed raw materials into a double-screw extruder, carrying out melt extrusion, and then placing the mixed raw materials in a roller mill to obtain an insulating polyvinyl chloride shell material, wherein the temperature of the melt extrusion is 210 ℃, and the temperature of the roller mill is 195 ℃;
x3. soaking the insulating polyvinyl chloride shell material in a 20% tetraisopropyl titanate solution for 30min, controlling the relative humidity to be 45%, continuously introducing nitrogen and oxygen in a volume ratio of 6:4, heating to 75 ℃, continuously drying for 25min, and cooling to room temperature to obtain the anti-aging insulating polyvinyl chloride shell material;
x4. extruding the anti-aging insulating polyvinyl chloride shell material on the outer surface of the wire core wrapped with the braided shielding layer to obtain the anti-aging insulating polyvinyl chloride net wire.
Comparative example 2
The anti-aging insulating polyvinyl chloride net wire is characterized by comprising a wire core, a braided shielding layer and an anti-aging insulating polyvinyl chloride material;
the raw materials of the anti-aging insulating polyvinyl chloride material comprise grafted polyvinyl chloride powder, an antioxidant and an organic infusion.
The antioxidant consists of 2, 6-di-tert-butyl-4-methylphenol and phosphite ester according to the mass ratio of 85:50.
The preparation of the grafted polyvinyl chloride powder comprises the following steps:
w1, adding polyvinyl chloride powder into N, N-dimethylformamide, stirring uniformly to enable the polyvinyl chloride powder to be fully dispersed, then adding butyl acrylate and di-tert-butyl peroxide, continuously stirring, heating to 90 ℃, and continuously reacting for 1h; the mass ratio of the polyvinyl chloride powder to the butyl acrylate is 180:30;
and W2, filtering out a reaction mixture after the reaction is finished, washing and drying to obtain grafted polyvinyl chloride powder.
The preparation method of the anti-aging insulating polyvinyl chloride net wire comprises the following steps:
x1., placing the grafted polyvinyl chloride powder and the antioxidant into a high-speed stirrer according to the mass ratio of 1600:90, stirring at 170 ℃ for 14min to obtain a mixed raw material;
x2. feeding the mixed raw materials into a double-screw extruder, carrying out melt extrusion, and then placing the mixed raw materials in a roller mill to obtain an insulating polyvinyl chloride shell material, wherein the temperature of the melt extrusion is 210 ℃, and the temperature of the roller mill is 195 ℃;
x3. soaking the insulating polyvinyl chloride shell material in a 20% tetraisopropyl titanate solution for 30min, controlling the relative humidity to be 45%, continuously introducing nitrogen and oxygen in a volume ratio of 6:4, heating to 75 ℃, continuously drying for 25min, and cooling to room temperature to obtain the anti-aging insulating polyvinyl chloride shell material;
x4. extruding the anti-aging insulating polyvinyl chloride shell material on the outer surface of the wire core wrapped with the braided shielding layer to obtain the anti-aging insulating polyvinyl chloride net wire.
Comparative example 3
The anti-aging insulating polyvinyl chloride net wire is characterized by comprising a wire core, a braided shielding layer and an anti-aging insulating polyvinyl chloride material;
the raw materials of the anti-aging insulating polyvinyl chloride material comprise grafted polyvinyl chloride powder, an antioxidant and an inorganic filler.
The antioxidant consists of 2, 6-di-tert-butyl-4-methylphenol and phosphite ester according to the mass ratio of 85:50.
The inorganic filler consists of calcium hypophosphite, sodium hypophosphite and sodium silicate with the mass ratio of 12-15:6-8:8-12.
The preparation of the grafted polyvinyl chloride powder comprises the following steps:
w1, adding polyvinyl chloride powder into N, N-dimethylformamide, stirring uniformly to enable the polyvinyl chloride powder to be fully dispersed, then adding butyl acrylate and di-tert-butyl peroxide, continuously stirring, heating to 90 ℃, and continuously reacting for 1h; the mass ratio of the polyvinyl chloride powder to the butyl acrylate is 180:30;
and W2, filtering out a reaction mixture after the reaction is finished, washing and drying to obtain grafted polyvinyl chloride powder.
The preparation method of the anti-aging insulating polyvinyl chloride net wire comprises the following steps:
x1., placing the grafted polyvinyl chloride powder, the antioxidant and the inorganic filler into a high-speed stirrer according to the mass ratio of 1600:90:30, stirring at 170 ℃ for 14min to obtain a mixed raw material;
x2. feeding the mixed raw materials into a double-screw extruder, carrying out melt extrusion, and then placing the mixed raw materials in a roller mill to obtain an anti-aging insulating polyvinyl chloride shell material, wherein the temperature of the melt extrusion is 210 ℃, and the temperature of the roller mill is 195 ℃;
x3. extruding the anti-aging insulating polyvinyl chloride shell material on the outer surface of the wire core wrapped with the braided shielding layer to obtain the anti-aging insulating polyvinyl chloride net wire.
Performance testing
Samples of the anti-aging insulating polyvinyl chloride casing materials obtained in the above examples and comparative examples were prepared according to the specification described in GB/T528-2009, and tested for tensile strength and tensile strength at break, and further tested for tensile strength and tensile strength at break after being left at 100 ℃ for 14 days, and specific results are shown in tables 1 and 2.
As can be seen from a comparison of tables 1 and 2, the samples of the anti-aging insulating polyvinyl chloride casing materials of comparative examples 1 to 3 exhibited a significant decrease in both tensile strength and tensile strength at break after being left at 100℃for 14 days, as compared with examples 1 to 3.
TABLE 1 tensile Strength and tensile Strength at break of samples of anti-aging insulating polyvinyl chloride casing Material
Table 2 tensile Strength and tensile Strength at break of samples of anti-aging insulating polyvinyl chloride casing Material after 14 days of standing at 100 c
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (10)
1. The anti-aging insulating polyvinyl chloride net wire is characterized by comprising a wire core, a braided shielding layer and an anti-aging insulating layer;
the raw materials of the anti-aging insulating layer comprise grafted polyvinyl chloride powder, an antioxidant, an inorganic filler and an organic impregnant.
2. The anti-aging insulating polyvinyl chloride net wire according to claim 1, wherein the preparation method of the grafted polyvinyl chloride powder comprises the following steps:
adding polyvinyl chloride powder into N, N-dimethylformamide, stirring uniformly to enable the polyvinyl chloride powder to be fully dispersed, then adding butyl acrylate and di-tert-butyl peroxide, continuously stirring, heating to 70-90 ℃, and continuously reacting for 1-3 hours;
and W2, filtering out a reaction mixture after the reaction is finished, washing and drying to obtain grafted polyvinyl chloride powder.
3. The anti-aging insulated polyvinyl chloride wire according to claim 1, wherein the antioxidant consists of phosphite and any one of 2, 6-di-tert-butyl-4-methylphenol, bis (3, 5-di-tert-butyl-4-hydroxyphenyl) sulfide.
4. An anti-aging insulating polyvinyl chloride net wire according to claim 3, wherein the mass ratio of any one of 2, 6-di-tert-butyl-4-methylphenol, bis (3, 5-di-tert-butyl-4-hydroxyphenyl) sulfide and phosphite ester is 75-85:45-50.
5. The anti-aging insulating polyvinyl chloride net wire according to claim 1, wherein the inorganic filler consists of calcium hypophosphite, sodium hypophosphite and sodium silicate in a mass ratio of 12-15:6-8:8-12.
6. The anti-aging insulating polyvinyl chloride net wire according to claim 1, wherein the organic leaches are tetraisopropyl titanate solution with a concentration of 15-20%.
7. The anti-aging insulated polyvinyl chloride wire according to claim 1, wherein the preparation method of the anti-aging insulated polyvinyl chloride wire comprises the following steps:
x1. placing the grafted polyvinyl chloride powder, the antioxidant and the inorganic filler into a high-speed stirrer for stirring to obtain a mixed raw material;
x2. feeding the mixed raw materials into a double-screw extruder, carrying out melt extrusion, and placing the mixed raw materials on a roller for open mixing to obtain a polyvinyl chloride shell material;
x3. the polyvinyl chloride shell material is placed in an organic impregnant for soaking treatment, the soaking is continued for 25-30 min, then the heat treatment is carried out, and the ageing-resistant polyvinyl chloride shell material is obtained after cooling to room temperature;
x4. extruding the anti-aging polyvinyl chloride shell material on the outer surface of the wire core wrapped with the braided shielding layer to obtain the anti-aging insulating polyvinyl chloride net wire.
8. The anti-aging insulating polyvinyl chloride net wire according to claim 7, wherein the mass ratio of the grafted polyvinyl chloride powder to the antioxidant to the inorganic filler in the step X1 is 1200-1600:80-90:25-30;
the stirring temperature in the high-speed stirrer is 130-170 ℃, and the stirring time is 14-18 min.
9. The anti-aging insulated polyvinyl chloride wire according to claim 7, wherein the temperature of the melt extrusion in the step X2 is 190-210 ℃, and the temperature of the roll mill is 175-195 ℃.
10. The anti-aging insulated polyvinyl chloride net wire according to claim 7, wherein the heat treatment in the step X3 is to control the relative humidity to be 35-45%, continuously introducing nitrogen and oxygen in a volume ratio of 6:4, heating to 65-75 ℃ and continuously drying for 15-25 min.
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| CN202311454236.8A CN117275804A (en) | 2023-11-03 | 2023-11-03 | Anti-aging insulating polyvinyl chloride net wire |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311454236.8A CN117275804A (en) | 2023-11-03 | 2023-11-03 | Anti-aging insulating polyvinyl chloride net wire |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101981722A (en) * | 2008-03-31 | 2011-02-23 | 住友化学株式会社 | Organic semiconductor composition, organic thin film and organic thin film element provided with organic thin film |
| CN205406127U (en) * | 2016-02-29 | 2016-07-27 | 浙江威尔龙高温线缆有限公司 | Flat multicore cable |
| CN211455383U (en) * | 2020-02-27 | 2020-09-08 | 安徽华星电缆集团有限公司 | Novel this ampere of instrument cable |
| CN114456516A (en) * | 2022-01-24 | 2022-05-10 | 深圳市红旗电工科技有限公司 | Network combined cable and preparation process thereof |
| CN217933210U (en) * | 2022-04-29 | 2022-11-29 | 天津福尔欣汽车线缆有限公司 | Silica gel insulation new energy automobile shielding cable |
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- 2023-11-03 CN CN202311454236.8A patent/CN117275804A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101981722A (en) * | 2008-03-31 | 2011-02-23 | 住友化学株式会社 | Organic semiconductor composition, organic thin film and organic thin film element provided with organic thin film |
| CN205406127U (en) * | 2016-02-29 | 2016-07-27 | 浙江威尔龙高温线缆有限公司 | Flat multicore cable |
| CN211455383U (en) * | 2020-02-27 | 2020-09-08 | 安徽华星电缆集团有限公司 | Novel this ampere of instrument cable |
| CN114456516A (en) * | 2022-01-24 | 2022-05-10 | 深圳市红旗电工科技有限公司 | Network combined cable and preparation process thereof |
| CN217933210U (en) * | 2022-04-29 | 2022-11-29 | 天津福尔欣汽车线缆有限公司 | Silica gel insulation new energy automobile shielding cable |
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