CN108070181B - High-temperature-aging-resistant PVC cable material and preparation method thereof - Google Patents
High-temperature-aging-resistant PVC cable material and preparation method thereof Download PDFInfo
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- CN108070181B CN108070181B CN201810119900.6A CN201810119900A CN108070181B CN 108070181 B CN108070181 B CN 108070181B CN 201810119900 A CN201810119900 A CN 201810119900A CN 108070181 B CN108070181 B CN 108070181B
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- 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
- H01B3/443—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 from vinylhalogenides or other halogenoethylenic compounds
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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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a high-temperature aging resistant PVC cable material which is prepared from the following raw materials in parts by weight: 100-105 parts of PVC resin, 15-20 parts of trioctyl trimellitate, 12-17 parts of mica powder, 3-6 parts of fumed silica, 0.1-0.4 part of polyethylene wax, 2-5 parts of epoxidized soybean oil, 4-8 parts of a calcium-zinc stabilizer, 1-2 parts of calcium stearate, 2-3 parts of an anti-aging agent, 0.8-1.2 parts of diallyl sulfide, 1-3 parts of a toner and 5-9 parts of antimony trioxide. The invention also discloses a preparation method of the high-temperature aging resistant PVC cable material. The mechanical property of the cable material prepared by the invention can meet the market demand, and the cable material has excellent ageing resistance and ensures the service life of the cable.
Description
Technical Field
The invention relates to the technical field of power cables, in particular to a high-temperature-aging-resistant PVC cable material and a preparation method thereof.
Background
The electric wire and cable industry is an important matching industry for the economic construction of China and is widely applied to various fields of the national economy, the electric wire and cable is an indispensable basic device for transmitting electric energy, transmitting information and manufacturing various motors, electric appliances, instruments, automobiles, machine tools and other equipment, the electric wire and cable provides basic facilities for the power industry and the communication industry, occupies the output value of 1/4 in the electrician industry of China, is the second major industry next to the automobile industry in China, and both the product variety satisfaction rate and the domestic market share exceed 90 percent. The total output value of the electric wire and the electric cable in China exceeds the United states worldwide, and the electric wire and the electric cable become the first country for producing the electric wire and the electric cable in the world.
The plastic used for the insulation and the sheath of the electric wire and the electric cable is commonly called as a cable material, and comprises various varieties such as rubber, plastic, nylon and the like. The cable material production enterprises take cable production enterprises as users, and have the market of cable materials as long as the requirements of wires and cables are met. The cable material has a plurality of types, wherein the PVC cable material has low price and excellent performance and plays an important role in the insulation protection material of the electric wire and the cable for a long time. However, the existing PVC cable material still has the defects of no high temperature aging resistance, low tensile strength after aging and the like, and the service life of the cable is influenced.
Disclosure of Invention
The invention aims to provide a high-temperature-aging-resistant PVC cable material and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the high-temperature aging resistant PVC cable material is prepared from the following raw materials in parts by weight: 100-105 parts of PVC resin, 15-20 parts of trioctyl trimellitate, 12-17 parts of mica powder, 3-6 parts of fumed silica, 0.1-0.4 part of polyethylene wax, 2-5 parts of epoxidized soybean oil, 4-8 parts of a calcium-zinc stabilizer, 1-2 parts of calcium stearate, 2-3 parts of an anti-aging agent, 0.8-1.2 parts of diallyl sulfide, 1-3 parts of a toner and 5-9 parts of antimony trioxide, wherein the anti-aging agent consists of an anti-aging agent CPPD and an anti-aging agent AW which are combined according to the weight ratio of 3: 1. .
As a further scheme of the invention: the feed is prepared from the following raw materials in parts by weight: 104 parts of PVC resin 101-containing material, 16-18 parts of trioctyl trimellitate, 13-16 parts of mica powder, 4-5 parts of fumed silica, 0.2-0.3 part of polyethylene wax, 3-4 parts of epoxidized soybean oil, 5-7 parts of calcium-zinc stabilizer, 1.3-1.7 parts of calcium stearate, 2.2-2.8 parts of anti-aging agent, 0.9-1.1 parts of diallyl sulfide, 1.5-2.5 parts of toner and 6-8 parts of antimony trioxide.
As a still further scheme of the invention: the feed is prepared from the following raw materials in parts by weight: 103 parts of PVC resin, 17 parts of trioctyl trimellitate, 14 parts of mica powder, 4.5 parts of fumed silica, 0.3 part of polyethylene wax, 3.5 parts of epoxidized soybean oil, 6 parts of calcium zinc stabilizer, 1.5 parts of calcium stearate, 2.5 parts of anti-aging agent, 1 part of diallyl sulfide, 2 parts of toner and 7 parts of antimony trioxide.
The preparation method of the high-temperature aging resistant PVC cable material comprises the following steps:
1) weighing diallyl sulfide and an anti-aging agent, adding ethanol into the diallyl sulfide, uniformly mixing, adding the anti-aging agent, continuously uniformly mixing, sending into an ultrasonic processor, carrying out ultrasonic processing for 20-30min, and discharging to obtain a first mixture for later use;
2) weighing epoxidized soybean oil and toner, and stirring and mixing uniformly to obtain a second mixture for later use;
3) weighing PVC resin, trioctyl trimellitate, mica powder and polyethylene wax, putting into a high-speed mixer, and mixing for 8-10min at a high speed to obtain a mixture A;
4) weighing fumed silica, calcium zinc stabilizer, calcium stearate and antimony trioxide, mixing, adding into the mixture A, and continuously stirring and mixing for 5-8min to obtain a mixture B;
5) sequentially adding the first mixture and the second mixture into the mixture B, continuously stirring and mixing for 15-20min, then discharging the materials into a cooling mixer, carrying out cold stirring for 10-12min, and discharging to obtain a mixture C;
6) and (4) feeding the mixture C into a double-screw extrusion granulator for extrusion granulation and drying.
As a still further scheme of the invention: in the step 1), the adding amount of the ethanol is 3-5 times of the weight of the diallyl sulfide.
As a still further scheme of the invention: in the step 1), the ultrasonic treatment frequency is 30-40 kHz.
The use of the above cable material in the preparation of a cable product.
Compared with the prior art, the invention has the beneficial effects that:
the mechanical property of the cable material prepared by the invention can meet the market demand, and the cable material has excellent ageing resistance, the aged cable material still can keep higher tensile strength, can provide good protection for the cable, ensures the service life of the cable, and has wide market prospect.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to specific embodiments.
Example 1
The high-temperature aging resistant PVC cable material is prepared from the following raw materials in parts by weight: 100 parts of PVC resin, 15 parts of trioctyl trimellitate, 12 parts of mica powder, 3 parts of fumed silica, 0.1 part of polyethylene wax, 2 parts of epoxidized soybean oil, 4 parts of calcium-zinc stabilizer, 1 part of calcium stearate, 2 parts of anti-aging agent, 0.8 part of diallyl sulfide, 1 part of toner and 5 parts of antimony trioxide.
The anti-aging agent is prepared by combining an anti-aging agent CPPD and an anti-aging agent AW according to the weight ratio of 3: 1.
In this embodiment, the preparation method of the high temperature aging resistant PVC cable material includes the following steps:
1) weighing diallyl sulfide and an anti-aging agent, adding ethanol into the diallyl sulfide, uniformly mixing, adding the anti-aging agent, continuously uniformly mixing, sending into an ultrasonic processor, carrying out ultrasonic treatment for 20min, and discharging to obtain a first mixture for later use, wherein the addition amount of the ethanol is 3 times of the weight of the diallyl sulfide, and the ultrasonic treatment frequency is 30 kHz;
2) weighing epoxidized soybean oil and toner, and stirring and mixing uniformly to obtain a second mixture for later use;
3) weighing PVC resin, trioctyl trimellitate, mica powder and polyethylene wax, putting into a high-speed mixer, and mixing for 8min at a high speed to obtain a mixture A;
4) weighing fumed silica, calcium zinc stabilizer, calcium stearate and antimony trioxide, mixing, adding into the mixture A, and continuously stirring and mixing for 5min to obtain a mixture B;
5) sequentially adding the first mixture and the second mixture into the mixture B, continuously stirring and mixing for 15min, then discharging the materials into a cooling mixer, and performing cold stirring for 10min, and discharging the materials to obtain a mixture C;
6) and (4) feeding the mixture C into a double-screw extrusion granulator for extrusion granulation and drying.
Example 2
The high-temperature aging resistant PVC cable material is prepared from the following raw materials in parts by weight: 101 parts of PVC resin, 16 parts of trioctyl trimellitate, 13 parts of mica powder, 5 parts of fumed silica, 0.3 part of polyethylene wax, 4 parts of epoxidized soybean oil, 5 parts of calcium-zinc stabilizer, 1.3 parts of calcium stearate, 2.8 parts of anti-aging agent, 1.1 parts of diallyl sulfide, 1.5 parts of toner and 8 parts of antimony trioxide.
The anti-aging agent is prepared by combining an anti-aging agent CPPD and an anti-aging agent AW according to the weight ratio of 3: 1.
In this embodiment, the preparation method of the high temperature aging resistant PVC cable material includes the following steps:
1) weighing diallyl sulfide and an anti-aging agent, adding ethanol into the diallyl sulfide, uniformly mixing, adding the anti-aging agent, continuously uniformly mixing, sending into an ultrasonic processor, carrying out ultrasonic processing for 23min, and discharging to obtain a first mixture for later use, wherein the adding amount of the ethanol is 3.5 times of the weight of the diallyl sulfide, and the ultrasonic processing frequency is 30 kHz;
2) weighing epoxidized soybean oil and toner, and stirring and mixing uniformly to obtain a second mixture for later use;
3) weighing PVC resin, trioctyl trimellitate, mica powder and polyethylene wax, putting into a high-speed mixer, and mixing at high speed for 9min to obtain a mixture A;
4) weighing fumed silica, calcium zinc stabilizer, calcium stearate and antimony trioxide, mixing, adding into the mixture A, and continuously stirring and mixing for 6min to obtain a mixture B;
5) sequentially adding the first mixture and the second mixture into the mixture B, continuously stirring and mixing for 16min, then discharging the materials into a cooling mixer, and performing cold stirring for 10min, and discharging the materials to obtain a mixture C;
6) and (4) feeding the mixture C into a double-screw extrusion granulator for extrusion granulation and drying.
Example 3
The high-temperature aging resistant PVC cable material is prepared from the following raw materials in parts by weight: 103 parts of PVC resin, 17 parts of trioctyl trimellitate, 14 parts of mica powder, 4.5 parts of fumed silica, 0.3 part of polyethylene wax, 3.5 parts of epoxidized soybean oil, 6 parts of calcium zinc stabilizer, 1.5 parts of calcium stearate, 2.5 parts of anti-aging agent, 1 part of diallyl sulfide, 2 parts of toner and 7 parts of antimony trioxide.
The anti-aging agent is prepared by combining an anti-aging agent CPPD and an anti-aging agent AW according to the weight ratio of 3: 1.
In this embodiment, the preparation method of the high temperature aging resistant PVC cable material includes the following steps:
1) weighing diallyl sulfide and an anti-aging agent, adding ethanol into the diallyl sulfide, uniformly mixing, adding the anti-aging agent, continuously uniformly mixing, sending into an ultrasonic processor, carrying out ultrasonic processing for 25min, and discharging to obtain a first mixture for later use, wherein the addition amount of the ethanol is 4 times of the weight of the diallyl sulfide, and the ultrasonic processing frequency is 40 kHz;
2) weighing epoxidized soybean oil and toner, and stirring and mixing uniformly to obtain a second mixture for later use;
3) weighing PVC resin, trioctyl trimellitate, mica powder and polyethylene wax, putting into a high-speed mixer, and mixing at high speed for 9min to obtain a mixture A;
4) weighing fumed silica, calcium zinc stabilizer, calcium stearate and antimony trioxide, mixing, adding into the mixture A, and continuously stirring and mixing for 7min to obtain a mixture B;
5) sequentially adding the first mixture and the second mixture into the mixture B, continuously stirring and mixing for 18min, then discharging the materials into a cooling mixer, and performing cold stirring for 11min, and discharging the materials to obtain a mixture C;
6) and (4) feeding the mixture C into a double-screw extrusion granulator for extrusion granulation and drying.
Example 4
The high-temperature aging resistant PVC cable material is prepared from the following raw materials in parts by weight: 104 parts of PVC resin, 18 parts of trioctyl trimellitate, 16 parts of mica powder, 4 parts of fumed silica, 0.2 part of polyethylene wax, 3 parts of epoxidized soybean oil, 7 parts of calcium-zinc stabilizer, 1.7 parts of calcium stearate, 2.2 parts of anti-aging agent, 0.9 part of diallyl sulfide, 2.5 parts of toner and 6 parts of antimony trioxide.
The anti-aging agent is prepared by combining an anti-aging agent CPPD and an anti-aging agent AW according to the weight ratio of 3: 1.
In this embodiment, the preparation method of the high temperature aging resistant PVC cable material includes the following steps:
1) weighing diallyl sulfide and an anti-aging agent, adding ethanol into the diallyl sulfide, uniformly mixing, adding the anti-aging agent, continuously uniformly mixing, sending into an ultrasonic processor, carrying out ultrasonic treatment for 28min, and discharging to obtain a first mixture for later use, wherein the addition amount of the ethanol is 4.5 times of the weight of the diallyl sulfide, and the ultrasonic treatment frequency is 40 kHz;
2) weighing epoxidized soybean oil and toner, and stirring and mixing uniformly to obtain a second mixture for later use;
3) weighing PVC resin, trioctyl trimellitate, mica powder and polyethylene wax, putting into a high-speed mixer, and mixing for 10min at a high speed to obtain a mixture A;
4) weighing fumed silica, calcium zinc stabilizer, calcium stearate and antimony trioxide, mixing, adding into the mixture A, and continuously stirring and mixing for 7min to obtain a mixture B;
5) sequentially adding the first mixture and the second mixture into the mixture B, continuously stirring and mixing for 17min, then discharging the materials into a cooling mixer, and performing cold stirring for 10min, and discharging the materials to obtain a mixture C;
6) and (4) feeding the mixture C into a double-screw extrusion granulator for extrusion granulation and drying.
Example 5
The high-temperature aging resistant PVC cable material is prepared from the following raw materials in parts by weight: 105 parts of PVC resin, 20 parts of trioctyl trimellitate, 17 parts of mica powder, 6 parts of fumed silica, 0.4 part of polyethylene wax, 5 parts of epoxidized soybean oil, 8 parts of calcium-zinc stabilizer, 2 parts of calcium stearate, 3 parts of anti-aging agent, 1.2 parts of diallyl sulfide, 3 parts of toner and 9 parts of antimony trioxide.
The anti-aging agent is prepared by combining an anti-aging agent CPPD and an anti-aging agent AW according to the weight ratio of 3: 1.
In this embodiment, the preparation method of the high temperature aging resistant PVC cable material includes the following steps:
1) weighing diallyl sulfide and an anti-aging agent, adding ethanol into the diallyl sulfide, uniformly mixing, adding the anti-aging agent, continuously uniformly mixing, sending into an ultrasonic processor, carrying out ultrasonic processing for 30min, and discharging to obtain a first mixture for later use, wherein the addition amount of the ethanol is 5 times of the weight of the diallyl sulfide, and the ultrasonic processing frequency is 40 kHz;
2) weighing epoxidized soybean oil and toner, and stirring and mixing uniformly to obtain a second mixture for later use;
3) weighing PVC resin, trioctyl trimellitate, mica powder and polyethylene wax, putting into a high-speed mixer, and mixing for 10min at a high speed to obtain a mixture A;
4) weighing fumed silica, calcium zinc stabilizer, calcium stearate and antimony trioxide, mixing, adding into the mixture A, and continuously stirring and mixing for 8min to obtain a mixture B;
5) sequentially adding the first mixture and the second mixture into the mixture B, continuously stirring and mixing for 20min, then discharging the materials into a cooling mixer, and performing cold stirring for 12min, and discharging the materials to obtain a mixture C;
6) and (4) feeding the mixture C into a double-screw extrusion granulator for extrusion granulation and drying.
Comparative example 1
The same procedure as in example 3 was repeated except that diallyl sulfide was not contained as in example 3.
Comparative example 2
The same procedure as in example 3 was repeated, except that the antioxidant was not contained in example 3.
Comparative example 3
The procedure of example 3 was repeated except that the antioxidant and diallyl sulfide were not contained in the composition of example 3.
The cable materials prepared in example 3 and comparative examples 1 to 3 were subjected to performance tests, and the test results are shown in table 1.
TABLE 1 Performance test Table
Note: the aging is carried out at 158 ℃ for 168 h.
The results show that the mechanical property of the cable material prepared by the invention can meet the market demand, the cable material has excellent ageing resistance, the aged cable material still can keep higher tensile strength, good protection can be provided for the cable, the service life of the cable is ensured, and the cable material has wide market prospect.
In addition, as can be seen from the comparison of the data of example 3 and comparative examples 1-3, the anti-aging performance of the cable material can be improved by adding the anti-aging agent consisting of the anti-aging agent CPPD and the anti-aging agent AW in a weight ratio of 3:1 and the diallyl sulfide into the cable material.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (7)
1. The high-temperature aging resistant PVC cable material is characterized by being prepared from the following raw materials in parts by weight: 100-105 parts of PVC resin, 15-20 parts of trioctyl trimellitate, 12-17 parts of mica powder, 3-6 parts of fumed silica, 0.1-0.4 part of polyethylene wax, 2-5 parts of epoxidized soybean oil, 4-8 parts of a calcium-zinc stabilizer, 1-2 parts of calcium stearate, 2-3 parts of an anti-aging agent, 0.8-1.2 parts of diallyl sulfide, 1-3 parts of a toner and 5-9 parts of antimony trioxide, wherein the anti-aging agent consists of an anti-aging agent CPPD and an anti-aging agent AW which are combined according to the weight ratio of 3: 1.
2. The high temperature aging resistant PVC cable material according to claim 1, characterized by being prepared from the following raw materials in parts by weight: 104 parts of PVC resin 101-containing material, 16-18 parts of trioctyl trimellitate, 13-16 parts of mica powder, 4-5 parts of fumed silica, 0.2-0.3 part of polyethylene wax, 3-4 parts of epoxidized soybean oil, 5-7 parts of calcium-zinc stabilizer, 1.3-1.7 parts of calcium stearate, 2.2-2.8 parts of anti-aging agent, 0.9-1.1 parts of diallyl sulfide, 1.5-2.5 parts of toner and 6-8 parts of antimony trioxide.
3. The high temperature aging resistant PVC cable material according to claim 2, characterized by being prepared from the following raw materials in parts by weight: 103 parts of PVC resin, 17 parts of trioctyl trimellitate, 14 parts of mica powder, 4.5 parts of fumed silica, 0.3 part of polyethylene wax, 3.5 parts of epoxidized soybean oil, 6 parts of calcium zinc stabilizer, 1.5 parts of calcium stearate, 2.5 parts of anti-aging agent, 1 part of diallyl sulfide, 2 parts of toner and 7 parts of antimony trioxide.
4. A method for preparing the high temperature aging resistant PVC cable material according to any one of claims 1-3, characterized by the steps of:
1) weighing diallyl sulfide and an anti-aging agent, adding ethanol into the diallyl sulfide, uniformly mixing, adding the anti-aging agent, continuously uniformly mixing, sending into an ultrasonic processor, carrying out ultrasonic processing for 20-30min, and discharging to obtain a first mixture for later use;
2) weighing epoxidized soybean oil and toner, and stirring and mixing uniformly to obtain a second mixture for later use;
3) weighing PVC resin, trioctyl trimellitate, mica powder and polyethylene wax, putting into a high-speed mixer, and mixing for 8-10min at a high speed to obtain a mixture A;
4) weighing fumed silica, calcium zinc stabilizer, calcium stearate and antimony trioxide, mixing, adding into the mixture A, and continuously stirring and mixing for 5-8min to obtain a mixture B;
5) sequentially adding the first mixture and the second mixture into the mixture B, continuously stirring and mixing for 15-20min, then discharging the materials into a cooling mixer, carrying out cold stirring for 10-12min, and discharging to obtain a mixture C;
6) and (4) feeding the mixture C into a double-screw extrusion granulator for extrusion granulation and drying.
5. The method for preparing the high temperature aging resistant PVC cable material according to claim 4, wherein in the step 1), the amount of the ethanol added is 3-5 times of the weight of the diallyl sulfide.
6. The method for preparing the high temperature aging resistant PVC cable material according to claim 4, wherein in the step 1), the ultrasonic treatment frequency is 30-40 kHz.
7. Use of a cable material according to any one of claims 1 to 3 for the preparation of a cable product.
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