CN110483915B - 105 ℃ semiconductive PVC material for automobile coaxial cable and preparation method thereof - Google Patents
105 ℃ semiconductive PVC material for automobile coaxial cable and preparation method thereof Download PDFInfo
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- CN110483915B CN110483915B CN201910766526.3A CN201910766526A CN110483915B CN 110483915 B CN110483915 B CN 110483915B CN 201910766526 A CN201910766526 A CN 201910766526A CN 110483915 B CN110483915 B CN 110483915B
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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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/017—Additives being an antistatic agent
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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
- C08L2201/04—Antistatic
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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
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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 relates to a 105 ℃ semiconductive PVC material for an automobile coaxial cable, which comprises the following components in parts by weight: 80-120 parts of polyvinyl chloride mixed resin; 6-8 parts of a calcium zinc stabilizer; 40-50 parts of a plasticizer; 5-20 parts of an antistatic agent; 3-5 parts of a production aid; 0.1-0.3 part of antioxidant; 0.5 part of a moisture-proof agent; 15-20 parts of a filling agent; wherein the antistatic agent is one or two selected from SAS93 and conductive carbon black. The long chain in the SAS93 molecule provides mobility to the polar material, the polar group provides hygroscopicity, the ionic type of the polar group leads to high conductivity of the moisture combined on the surface of the SAS93, the conductive carbon black is dispersed in the high polymer material, and the formed rib or net-shaped path is conductive, so the SAS93 and the conductive carbon black have synergistic effect, so that the 105 ℃ semiconductive PVC material for the automobile coaxial cable has good antistatic performance, high line opening speed and excellent mechanical performance.
Description
Technical Field
The invention relates to the field of PVC materials, in particular to a 105 ℃ semiconductive PVC material for an automobile coaxial cable and a preparation method thereof.
Background
The polyvinyl chloride cable material for the automobile wire is prepared by processing a polyvinyl chloride resin serving as a base material, a plasticizer, a stabilizer and a processing aid through a special mixing device, and can meet the basic production requirements of the automobile wire, but has the phenomena of low yield, unstable process, laggard equipment production capacity and the like. In recent years, the automobile industry is increasingly competitive, and more automobile industries improve the market competitiveness of branded automobiles by increasing the production efficiency and increasing the automobile configuration, so that the production efficiency is required to be improved under the condition that the matching materials of the automobile industry are the same, and the increasingly severe market competition is met.
Disclosure of Invention
The invention aims to provide a 105 ℃ semiconductive PVC material for an automobile coaxial cable, which has excellent performance, high paying-off speed and stable and advanced production process, and a preparation method thereof.
The invention aims to provide a 105 ℃ semiconductive PVC material for an automobile coaxial cable, which comprises the following components in parts by weight:
80-120 parts of polyvinyl chloride mixed resin;
6-8 parts of a calcium zinc stabilizer;
40-50 parts of a plasticizer;
5-20 parts of an antistatic agent;
3-5 parts of a production aid;
0.1-0.3 part of antioxidant;
0.5 part of a moisture-proof agent;
15-20 parts of a filling agent;
wherein, the antistatic agent is one or two selected from SAS93 and conductive carbon black, thereby ensuring that the product has good antistatic performance.
Preferably, the antistatic agent is a mixture of SAS93 and conductive carbon black, and the antistatic performance of the product is further improved.
Specifically, the polyvinyl chloride mixed resin is polyvinyl chloride type 3 resin and polyvinyl chloride type 5 resin.
Preferably, the polyvinyl chloride 3 type resin is 60 to 80 parts, and the polyvinyl chloride 5 type resin is 20 to 40 parts.
Preferably, the polyvinyl chloride 3-type resin is PVC resin powder having a polymerization degree of 1300, and the polyvinyl chloride 5-type resin is PVC resin powder having a polymerization degree of 1000.
Specifically, the production aid is Chlorinated Polyethylene (CPE), so that smooth granulation production of the product can be ensured.
Specifically, the plasticizer is one of TOTM and DUP, so that good heat-resistant 3000-hour aging resistance can be ensured.
Specifically, the filler is calcium carbonate.
Preferably, the filler is 2500 mesh active calcium.
Specifically, the antioxidant is antioxidant 1010.
Specifically, the moisture-proof agent is trimethyl orthoformate.
The second purpose of the invention is to provide the preparation method of the 105 ℃ semiconductive PVC material for the automobile coaxial cable, wherein the 105 ℃ semiconductive PVC material for the automobile coaxial cable is produced by a Swiss import BUSS production line, and the weighed polyvinyl chloride mixed resin, the calcium-zinc stabilizer, the plasticizer, the antistatic agent, the production assistant agent, the antioxidant, the moisture-proof agent and the filler are mixed at a high speed, discharged after being mixed uniformly, put into a BUSS high-speed shearing machine, and granulated by a single screw rod, so that the 105 ℃ semiconductive PVC material for the automobile coaxial cable is obtained.
Specifically, the parameters of the high-speed machine are 250-275rpm, when the temperature is increased to 90 ℃, the rotating speed of the high-speed mixing machine is modulated to 420-440rpm, and the material is discharged at 120 ℃; temperature of the host screw: 140 plus or minus 3 ℃; temperature of the granulation screw: 110 plus or minus 3 ℃; temperature of the granulator: 150 +/-3 ℃; the variation amplitude of the rotation speed/torque of the screw of the main machine is 430 +/-50/60-75, the rotation speed/torque of the granulating screw is 43 +/-5/38-50, the rotation speed of the granulator is 650 +/-100, the upper-stage material temperature is 185 ℃ and 195 ℃, and the pressure of the vacuum pump is 0.5-0.8 bar; water spraying pressure: 0 to 2 bar.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the long chain in the SAS93 molecule with the alkyl chain provides mobility for polar materials, the polar group provides hygroscopicity, the ionic type of the polar group leads to high conductivity of moisture combined on the surface of SAS93, the conductive carbon black is dispersed in a high polymer material, and formed ribs or mesh-shaped paths are conductive so that the material has antistatic performance, so that the SAS93 and the conductive carbon black have synergistic effect, the 105 ℃ semiconductive PVC material for the automobile coaxial cable has good antistatic performance, the line opening speed is high, the mechanical performance is excellent, in addition, the preparation method adopts an advanced and stable production process of the Swiss BUSS to produce the automobile wire material, the yield is high, and the efficiency is high.
Detailed Description
The invention relates to a 105 ℃ semiconductive PVC material for an automobile coaxial cable, which comprises the following components in parts by weight: 80-120 parts of polyvinyl chloride mixed resin, 6-8 parts of calcium-zinc stabilizer, 40-50 parts of plasticizer, 5-20 parts of antistatic agent, 3-5 parts of production aid, 0.1-0.3 part of antioxidant, 0.5 part of moisture-proof agent and 15-20 parts of filler.
The polyvinyl chloride mixed resin is a mixture of polyvinyl chloride type 3 resin and polyvinyl chloride type 5 resin.
In the invention, the polyvinyl chloride 3 type resin is 60-80 parts, the polyvinyl chloride 5 type resin is 20-40 parts, the polyvinyl chloride 3 type resin is PVC resin powder with the polymerization degree of 1300, and the polyvinyl chloride 5 type resin is PVC resin powder with the polymerization degree of 1000.
The antistatic agent is a mixture consisting of one or more of SAS93 and conductive carbon black; preferably, the antistatic agent is SAS93 and conductive carbon black.
The co-production agent is a mixture consisting of one or more of chlorinated polyethylene, oxidized polyethylene wax and ACR 401.
The plasticizer is a mixture consisting of one or more of TOTM, DUP and linear ester of C8-C10; wherein DUP is King of Japan, and linear ester of C8-C10 is available from Japan DIC company.
The filler is one or more of calcium carbonate, barium sulfate and silicon dioxide. Wherein the filler calcium carbonate is 2500 mesh active calcium, and is purchased from LD1000C or VS-625 of Dongguan Wuquan.
The antioxidant is a mixture of one or more of antioxidant 1010, antioxidant 1076 and antioxidant 168.
The moisture-proof agent is trimethyl orthoformate.
The preparation method of the 105 ℃ semiconductive PVC material for the automobile coaxial cable comprises the following steps: the 105 ℃ semiconductive PVC material for the automobile coaxial cable is produced by adopting a Swiss import BUSS production line and a Swiss import BUSS production line, weighed polyvinyl chloride mixed resin, a calcium-zinc stabilizer, a plasticizer, an antistatic agent, a production aid, an antioxidant, a moisture-proof agent and a filler are mixed at a high speed, the materials are discharged after being mixed uniformly, the materials are put into a BUSS high-speed shearing machine, and the 105 ℃ semiconductive PVC material for the automobile coaxial cable is obtained through single-screw granulation. The parameters are as follows: the parameter of the high-speed machine is 250-275rpm, when the temperature is raised to 90 ℃, the rotating speed of the high-speed mixing machine is modulated to 420-440rpm, and the material is discharged at 120 ℃; temperature of the host screw: 140 plus or minus 3 ℃; temperature of the granulation screw: 110 plus or minus 3 ℃; temperature of the granulator: 150 +/-3 ℃; the variation amplitude of the rotation speed/torque of the screw of the main machine is 430 +/-50/60-75, the rotation speed/torque of the granulating screw is 43 +/-5/38-50, the rotation speed of the granulator is 650 +/-100, the upper-stage material temperature is 185 ℃ and 195 ℃, and the pressure of the vacuum pump is 0.5-0.8 bar; water spraying pressure: 0 to 2 bar.
The following provides a detailed description of preferred embodiments of the invention.
The formula components adopted in the comparative example 1 are completely the same as those in the example 1, and the raw materials are not processed by the conventional internal mixer and the twin-screw production process adopted in the comparative example 1, but are processed by an imported Swiss BUSS production line.
Comparative examples 2-3 were prepared in exactly the same manner as in example 1, except that the formulation components used in comparative examples 2-3 were different, and the specific formulation components are shown in Table 1.
Examples 1 to 5 and comparative examples 1 to 3 each provide a semiconductive PVC material at 105 ℃ for an automotive coaxial cable, the contents of each component of which are shown in table 1.
Table 1 shows the raw material formulations (unit: parts by weight) of the PVC materials of examples 1 to 5 and comparative examples 1 to 3
TABLE 2 results of physical Properties tests of examples 1 to 5 and comparative examples 1 to 3 (refer to GB/T8815-
As can be seen from tables 1 and 2, in the examples 1 to 5, one or two of the antistatic agent SAS93 and the conductive carbon black are selected, and the volume resistivity at 20 ℃ per Ω cm meets the requirement of less than or equal to 5x10 on the standard of the customer enterprise5Omega cm. The embodiment 2 and the embodiment 4 are complex formulation systems of the antistatic agent SAS93 and the conductive carbon black, the volume resistivity at 20 ℃ is lower than the volume resistivity at omega cm, and the paying-off speed also meets the standard requirement.
The component of the antistatic agent SAS93 is sodium alkylsulfonate, long chains in molecules of the antistatic agent SAS93 provide mobility for polar materials, and polar groups provide moisture absorption; the ionic nature of the polar groups results in high conductivity of the SAS93 surface bound moisture. The conductive carbon black is dispersed in the high polymer material, and the formed ribs or reticular paths conduct electricity, so that the material has antistatic performance. The antistatic agent SAS93 and the conductive carbon black have different antistatic modes and have synergistic effect, so that the antistatic effect is better.
As can be seen from tables 1 and 2, the conventional internal mixer used in comparative example 1, which does not use the Swiss import BUSS production line of the present invention, has a much lower yield than other examples and comparative examples using the BUSS production line, and the PVC material using the conventional process has a poor plasticizing property compared to example 1, and is mainly reflected in a slow paying-off speed.
In comparative example 2, the volume resistivity Ω cm at 20 ℃ is 1.5x10 without adding the antistatic agent12And the standard requirements of client enterprises cannot be met and are less than or equal to5x105The content of the added antistatic agent is high in the comparative example 3, and the volume resistivity at 20 ℃ is 6.8x102The antistatic agent has the advantages that the resistance can meet the requirements, but the low-temperature performance is poor, and the paying-off speed is low, so that the antistatic agent in a proper range can meet the requirements of the electrical performance and other performances of the product, and can also meet the paying-off speed.
According to the results in table 2, the 105 ℃ semiconductive PVC material for the automobile coaxial cable produced by the Swiss import BUSS production line has excellent antistatic performance, paying-off speed, excellent price ratio, good mechanical performance, high line opening speed and excellent moisture resistance, the environmental protection performance of the material meets the ROHS and REACH standard requirements, and the material performance and the manufacturability test can meet the use requirements of the coaxial cable. The yield is high, the process is stable, the yield can reach 4-4.5 tons per hour, the automobile wire harness material is produced by the first domestic manufacturer which uses an imported BUSS production line, the process that the conventional internal mixer and a double screw rod are used for producing the automobile cable material is broken through, the automobile semi-conductive material produced by the BUSS can realize high-speed paying-off of customers, the speed of 1150-1600 meters/min can be realized by 0.35-0.5 square wires at present, the production efficiency of a wire manufacturer is greatly improved, and the automobile wire harness material is a good material for using future coaxial cables.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (3)
1. The 105 ℃ semiconductive PVC material for the automobile coaxial cable is characterized by comprising the following components in parts by weight: the paint comprises the following components in parts by weight:
70 parts of polyvinyl chloride 3 type resin, wherein the polyvinyl chloride 3 type resin is PVC resin powder with the polymerization degree of 1300;
30 parts of polyvinyl chloride 5 type resin, wherein the polyvinyl chloride 5 type resin is PVC resin powder with the polymerization degree of 1000;
7 parts of a calcium zinc stabilizer;
40 parts of plasticizer TOTM;
SAS 934 parts;
6 parts of conductive carbon black;
5 parts of chlorinated polyethylene;
10100.2 parts of an antioxidant;
0.5 part of a moisture-proof agent;
15 parts of 2500-mesh active calcium;
or, the composition comprises the following components in parts by weight:
75 parts of polyvinyl chloride 3 type resin, wherein the polyvinyl chloride 3 type resin is PVC resin powder with the polymerization degree of 1300;
25 parts of polyvinyl chloride 5 type resin, wherein the polyvinyl chloride 5 type resin is PVC resin powder with the polymerization degree of 1000;
6 parts of a calcium zinc stabilizer;
45 parts of plasticizer DUP;
SAS 935 parts;
15 parts of conductive carbon black;
3 parts of chlorinated polyethylene;
10100.3 parts of an antioxidant;
0.5 part of a moisture-proof agent;
and 18 parts of 2500-mesh active calcium.
2. The method for preparing the 105 ℃ semiconductive PVC material for the automobile coaxial cable according to claim 1, which is characterized in that: the 105 ℃ semiconductive PVC material for the automobile coaxial cable is produced by adopting a Swiss import BUSS production line, weighed polyvinyl chloride mixed resin, a calcium-zinc stabilizer, a plasticizer, an antistatic agent, a production assistant, an antioxidant, a moisture-proof agent and a filler are mixed at a high speed, the materials are discharged after being uniformly mixed, the materials are put into a BUSS high-speed shearing machine, and the 105 ℃ semiconductive PVC material for the automobile coaxial cable is obtained through single-screw granulation.
3. The method of claim 2, wherein: the parameter of the high-speed machine is 250-275rpm, when the temperature is raised to 90 ℃, the rotating speed of the high-speed mixing machine is modulated to 420-440rpm, and the material is discharged at 120 ℃; temperature of the host screw: 140 plus or minus 3 ℃; temperature of the granulation screw: 110 plus or minus 3 ℃; temperature of the granulator: 150 +/-3 ℃; the variation amplitude of the rotation speed/torque of the screw of the main machine is 430 +/-50/60-75, the rotation speed/torque of the granulating screw is 43 +/-5/38-50, the rotation speed of the granulator is 650 +/-100, the upper-stage material temperature is 185 ℃ and 195 ℃, and the pressure of the vacuum pump is 0.5-0.8 bar; water spraying pressure: 0 to 2 bar.
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| CN112375280A (en) * | 2020-11-16 | 2021-02-19 | 苏州亨利通信材料有限公司 | Crosslinked polyethylene insulating material special for small wires and below 3KV and preparation method thereof |
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2019
- 2019-08-20 CN CN201910766526.3A patent/CN110483915B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6383154A (en) * | 1986-09-26 | 1988-04-13 | Mitsubishi Kasei Vinyl Co | Electrically conductive resin composition for calendering |
| KR20090106129A (en) * | 2008-04-04 | 2009-10-08 | 엘에스전선 주식회사 | Semiconducting polyvinyl chloride composition and electric cable using the same |
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