CN110577710A - Environment-friendly polyvinyl chloride cable insulating material - Google Patents
Environment-friendly polyvinyl chloride cable insulating material Download PDFInfo
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- CN110577710A CN110577710A CN201910854516.5A CN201910854516A CN110577710A CN 110577710 A CN110577710 A CN 110577710A CN 201910854516 A CN201910854516 A CN 201910854516A CN 110577710 A CN110577710 A CN 110577710A
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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
- 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
- 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
- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an environment-friendly polyvinyl chloride cable insulating material which comprises the following components of 100 parts of polyvinyl chloride resin, 3 ~ 8 parts of calcium-zinc composite stabilizer, 15 ~ 30 parts of plasticizer, 30 ~ 50 parts of filler, 0.5 ~ 2 part of lubricant and 10 ~ 15 parts of antioxidant, wherein the preparation method comprises the following steps of setting parameters of a torque rheometer, weighing the raw materials according to the proportion, uniformly mixing the raw materials for later use, adding the mixed materials into the torque rheometer for 8 ~ 10min, and obtaining the mixed materials of the polyvinyl chloride cable insulating material after the torque is kept unchanged, and adding the mixed materials into a cable forming machine to obtain the polyvinyl chloride cable insulating material.
Description
Technical Field
the invention relates to the technical field of cable materials, in particular to an environment-friendly polyvinyl chloride cable insulating material.
Background
With the development of economy and the progress of science and technology, various devices and electronic products are changing day by day, the using amount of wires and cables is rapidly increased, so the performance requirement of the cables is also continuously improved. Polyvinyl chloride is a chlorine-containing polymer, is one of the most widely used plastics in the world, has low price, excellent corrosion resistance and electrical insulation, particularly has flame-retardant self-extinguishing property, so that the polyvinyl chloride is widely applied to the production of cable materials, plays an important role in insulating and protecting materials of electric wires and cables for a long time, and is widely applied to insulating and protecting materials of various electric wires and cables.
Polyvinyl chloride has a number of disadvantages. First, there are environmental concerns. The polyvinyl chloride cable material contains chlorine element, so the polyvinyl chloride cable material has good flame retardant property, but generates hydrogen chloride gas and a large amount of black smoke during combustion, thereby causing great harm to human bodies and causing secondary disaster of cable combustion. Secondly, formulation issues. The traditional formula of the polyvinyl chloride cable material contains substances such as heavy metals harmful to human bodies and the like, and the polyvinyl chloride cable material also has great harm to the surrounding environment. Therefore, an environment-friendly polyvinyl chloride cable material is urgently needed.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an environment-friendly polyvinyl chloride cable insulating material.
The technical scheme adopted by the invention for solving the technical problems is that the environment-friendly polyvinyl chloride cable insulation material is prepared from the following raw materials, by weight, 100 parts of polyvinyl chloride resin, 3 ~ 8 parts of calcium-zinc composite stabilizer, 15 ~ 30 parts of plasticizer, 30 ~ 50 parts of filler, 0.5 ~ 2 parts of lubricant, and 10 ~ 15 parts of antioxidant.
The addition of the stabilizer, polyvinyl chloride is easy to be subjected to thermal and light effects to decompose hydrogen chloride during the production and processing of polyvinyl chloride, and the hydrogen chloride has autocatalysis effect, promotes the continuous release of the hydrogen chloride, leads to the breakage of polyvinyl chloride macromolecular chains, and in order to maximally compensate the serious defects of polyvinyl chloride homopolymers and copolymers, the stabilizer is required to eliminate unstable parts causing the initiation of dehydrochlorination, or be used as a hydrogen chloride scavenger, or react with the hydrogen chloride when free radicals are generated, or be used as an antioxidant, or change the polyene structure to change the tissue color, the breakage of molecular chains and crosslinking.
the effect of adding the plasticizer is as follows: the polyvinyl chloride resin has stronger polarity, larger intermolecular force and poorer molecular chain mobility, so the polyvinyl chloride resin has higher glass transition temperature, poorer processability and difficult forming, and the plasticizer molecules can be inserted into the polyvinyl chloride molecules, so the distance between the polyvinyl chloride molecules is increased, the intermolecular force is weakened, the viscosity and the plasticizing temperature of the polyethylene plastisol are reduced, and the polyethylene resin is easier to process.
The main function of the lubricant is to reduce the abrasion between the polyvinyl chloride material and the processing machinery and to reduce the mutual friction between the molecules in the polyvinyl chloride.
the plasticizer comprises a main plasticizer and an auxiliary plasticizer, and the weight ratio of the main plasticizer to the auxiliary plasticizer is 2: 1; the primary plasticizer is one of dinonyl phthalate, diisodecyl phthalate, heneicosyl phthalate, ditridecyl phthalate, dioctyl terephthalate or trioctyl trimellitate; the auxiliary plasticizer is selected from one of chlorinated paraffin or epoxidized soybean oil.
In the environment-friendly polyvinyl chloride cable insulating material, the filler is heavy calcium carbonate or argil.
in the environment-friendly polyvinyl chloride cable insulating material, the lubricant is polyethylene wax or stearic acid.
In the environment-friendly polyvinyl chloride cable insulating material, the antioxidant is alkyl phenyl sulfonate.
a preparation method of an environment-friendly polyvinyl chloride cable insulating material comprises the following steps:
Firstly, setting parameters of a torque rheometer, namely setting the temperatures of a first zone, a second zone and a third zone of the torque rheometer to be 165 ~ 180 ℃ and setting the rotating speed to be 35 ~ 45 r/min;
Step two, weighing the raw materials according to the proportion, uniformly mixing the raw materials for later use, adding the mixed material into the torque rheometer when the temperature of the torque rheometer is raised to the temperature set in the step one, mixing the mixed material for 8 ~ 10min, and obtaining the mixed material of the polyvinyl chloride cable insulating material after the torque is kept unchanged;
And step three, adding the mixed material of the polyvinyl chloride cable insulating material prepared in the step two into a cable forming machine to obtain the polyvinyl chloride cable insulating material.
Compared with the prior art, the invention has the following advantages and prominent effects:
the polyvinyl chloride cable insulating material has the advantages of high mechanical strength and electrical insulation, rich raw material sources, green and environment-friendly formula and production process, and is beneficial to large-scale production of the polyvinyl chloride cable material.
Detailed Description
The present invention will be described in detail with reference to specific embodiments in order to make those skilled in the art better understand the technical solutions of the present invention.
[ example 1 ]
An environment-friendly polyvinyl chloride cable insulation material is prepared from the following raw materials in parts by weight: 100 parts of polyvinyl chloride resin, 5 parts of calcium-zinc composite stabilizer, 18 parts of plasticizer, 30 parts of filler, 0.5 part of lubricant and 10 parts of antioxidant.
The addition of the stabilizer, polyvinyl chloride is easy to be subjected to thermal and light effects to decompose hydrogen chloride during the production and processing of polyvinyl chloride, and the hydrogen chloride has autocatalysis effect, promotes the continuous release of the hydrogen chloride, leads to the breakage of polyvinyl chloride macromolecular chains, and in order to maximally compensate the serious defects of polyvinyl chloride homopolymers and copolymers, the stabilizer is required to eliminate unstable parts causing the initiation of dehydrochlorination, or be used as a hydrogen chloride scavenger, or react with the hydrogen chloride when free radicals are generated, or be used as an antioxidant, or change the polyene structure to change the tissue color, the breakage of molecular chains and crosslinking.
the effect of adding the plasticizer is as follows: the polyvinyl chloride resin has stronger polarity, larger intermolecular force and poorer molecular chain mobility, so the polyvinyl chloride resin has higher glass transition temperature, poorer processability and difficult forming, and the plasticizer molecules can be inserted into the polyvinyl chloride molecules, so the distance between the polyvinyl chloride molecules is increased, the intermolecular force is weakened, the viscosity and the plasticizing temperature of the polyethylene plastisol are reduced, and the polyethylene resin is easier to process.
The main function of the lubricant is to reduce the abrasion between the polyvinyl chloride material and the processing machinery and to reduce the mutual friction between the molecules in the polyvinyl chloride.
Further, the plasticizer comprises a primary plasticizer and a secondary plasticizer, and the weight ratio of the primary plasticizer to the secondary plasticizer is 2: 1; the primary plasticizer is dinonyl phthalate; the auxiliary plasticizer is chlorinated paraffin.
Further, the filler is heavy calcium carbonate.
Further, the lubricant is polyethylene wax.
Further, the antioxidant is alkyl phenyl sulfonate.
A preparation method of an environment-friendly polyvinyl chloride cable insulating material comprises the following steps:
Firstly, setting parameters of a torque rheometer: setting the temperature of a first zone, a second zone and a third zone of the torque rheometer as 165 ℃ and the rotating speed as 35 r/min;
Step two, weighing the raw materials according to the proportion, uniformly mixing the raw materials for later use, adding the mixed material into the torque rheometer when the temperature of the torque rheometer is raised to the temperature set in the step one, mixing the mixed material for 8min, and obtaining the mixed material of the polyvinyl chloride cable insulating material after the torque is kept unchanged;
And step three, adding the mixed material of the polyvinyl chloride cable insulating material prepared in the step two into a cable forming machine to obtain the polyvinyl chloride cable insulating material.
The specific performance indexes of the obtained polyvinyl chloride cable insulating material are as follows:
Tensile strength of 19.89MPa
The elongation at break is 211.22 percent
Dielectric strength of 20MV/m
volume resistivity 2.29 x 1012
[ example 2 ]
An environment-friendly polyvinyl chloride cable insulation material is prepared from the following raw materials in parts by weight: 100 parts of polyvinyl chloride resin, 5 parts of calcium-zinc composite stabilizer, 30 parts of plasticizer, 33 parts of filler, 1 part of lubricant and 15 parts of antioxidant.
the addition of the stabilizer, polyvinyl chloride is easy to be subjected to thermal and light effects to decompose hydrogen chloride during the production and processing of polyvinyl chloride, and the hydrogen chloride has autocatalysis effect, promotes the continuous release of the hydrogen chloride, leads to the breakage of polyvinyl chloride macromolecular chains, and in order to maximally compensate the serious defects of polyvinyl chloride homopolymers and copolymers, the stabilizer is required to eliminate unstable parts causing the initiation of dehydrochlorination, or be used as a hydrogen chloride scavenger, or react with the hydrogen chloride when free radicals are generated, or be used as an antioxidant, or change the polyene structure to change the tissue color, the breakage of molecular chains and crosslinking.
The effect of adding the plasticizer is as follows: the polyvinyl chloride resin has stronger polarity, larger intermolecular force and poorer molecular chain mobility, so the polyvinyl chloride resin has higher glass transition temperature, poorer processability and difficult forming, and the plasticizer molecules can be inserted into the polyvinyl chloride molecules, so the distance between the polyvinyl chloride molecules is increased, the intermolecular force is weakened, the viscosity and the plasticizing temperature of the polyethylene plastisol are reduced, and the polyethylene resin is easier to process.
The main function of the lubricant is to reduce the abrasion between the polyvinyl chloride material and the processing machinery and to reduce the mutual friction between the molecules in the polyvinyl chloride.
further, the plasticizer comprises a primary plasticizer and a secondary plasticizer, and the weight ratio of the primary plasticizer to the secondary plasticizer is 2: 1; the primary plasticizer is diisodecyl phthalate; the auxiliary plasticizer is epoxidized soybean oil.
further, the filler is argil.
Further, the lubricant is stearic acid.
Further, the antioxidant is alkyl phenyl sulfonate.
a preparation method of an environment-friendly polyvinyl chloride cable insulating material comprises the following steps:
Firstly, setting parameters of a torque rheometer: setting the temperature of a first zone, a second zone and a third zone of the torque rheometer to be 180 ℃, and setting the rotating speed to be 40 r/min;
Step two, weighing the raw materials according to the proportion, uniformly mixing the raw materials for later use, adding the mixed material into the torque rheometer when the temperature of the torque rheometer is raised to the temperature set in the step one, mixing the mixed material for 10min, and obtaining the mixed material of the polyvinyl chloride cable insulating material after the torque is kept unchanged;
and step three, adding the mixed material of the polyvinyl chloride cable insulating material prepared in the step two into a cable forming machine to obtain the polyvinyl chloride cable insulating material.
The specific performance indexes of the obtained polyvinyl chloride cable insulating material are as follows:
Tensile strength 21.19MPa
Elongation at break 223.04%
Dielectric strength of 19MV/m
volume resistivity 2.02 x 1012
the above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (6)
1. An environment-friendly polyvinyl chloride cable insulation material is characterized by being prepared from the following raw materials, by weight, 100 parts of polyvinyl chloride resin, 3 ~ 8 parts of a calcium-zinc composite stabilizer, 15 ~ 30 parts of a plasticizer, 30 ~ 50 parts of a filler, 0.5 ~ 2 part of a lubricant, and 10 ~ 15 parts of an antioxidant.
2. The environment-friendly polyvinyl chloride cable insulation material as claimed in claim 1, wherein the plasticizer comprises a primary plasticizer and a secondary plasticizer in a weight ratio of 2: 1; the primary plasticizer is one of dinonyl phthalate, diisodecyl phthalate, heneicosyl phthalate, ditridecyl phthalate, dioctyl terephthalate or trioctyl trimellitate; the auxiliary plasticizer is selected from one of chlorinated paraffin or epoxidized soybean oil.
3. The environment-friendly polyvinyl chloride cable insulation material as claimed in claim 1, wherein the filler is ground calcium carbonate or pottery clay.
4. The environment-friendly polyvinyl chloride cable insulation material as claimed in claim 1, wherein the lubricant is polyethylene wax or stearic acid.
5. The environment-friendly polyvinyl chloride cable insulation material as claimed in claim 1, wherein the antioxidant is phenyl alkylsulfonate.
6. A preparation method of an environment-friendly polyvinyl chloride cable insulating material is characterized by comprising the following steps:
Firstly, setting parameters of a torque rheometer, namely setting the temperatures of a first zone, a second zone and a third zone of the torque rheometer to be 165 ~ 180 ℃ and setting the rotating speed to be 35 ~ 45 r/min;
Step two, weighing the raw materials according to the proportion, uniformly mixing the raw materials for later use, adding the mixed material into the torque rheometer when the temperature of the torque rheometer is raised to the temperature set in the step one, mixing the mixed material for 8 ~ 10min, and obtaining the mixed material of the polyvinyl chloride cable insulating material after the torque is kept unchanged;
And step three, adding the mixed material of the polyvinyl chloride cable insulating material prepared in the step two into a cable forming machine to obtain the polyvinyl chloride cable insulating material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910854516.5A CN110577710A (en) | 2019-09-10 | 2019-09-10 | Environment-friendly polyvinyl chloride cable insulating material |
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| CN201910854516.5A CN110577710A (en) | 2019-09-10 | 2019-09-10 | Environment-friendly polyvinyl chloride cable insulating material |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532743A (en) * | 2010-12-21 | 2012-07-04 | 天津德昊超微新材料有限公司 | Material special for flame-retarding polyvinyl chloride insulated cable |
| CN102585396A (en) * | 2011-12-28 | 2012-07-18 | 上海特缆电工科技有限公司 | Water-resistant polyvinyl chloride (PVC) cable insulating material |
| CN104017299A (en) * | 2014-06-01 | 2014-09-03 | 上海韬鸿化工科技有限公司 | An environmental-friendly 90 DEG C polyvinyl chloride cable insulating material |
-
2019
- 2019-09-10 CN CN201910854516.5A patent/CN110577710A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532743A (en) * | 2010-12-21 | 2012-07-04 | 天津德昊超微新材料有限公司 | Material special for flame-retarding polyvinyl chloride insulated cable |
| CN102585396A (en) * | 2011-12-28 | 2012-07-18 | 上海特缆电工科技有限公司 | Water-resistant polyvinyl chloride (PVC) cable insulating material |
| CN104017299A (en) * | 2014-06-01 | 2014-09-03 | 上海韬鸿化工科技有限公司 | An environmental-friendly 90 DEG C polyvinyl chloride cable insulating material |
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Application publication date: 20191217 |
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