CN111548579A - Migration-resistant polyvinyl chloride cable material and preparation method thereof - Google Patents
Migration-resistant polyvinyl chloride cable material and preparation method thereof Download PDFInfo
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- CN111548579A CN111548579A CN202010369835.XA CN202010369835A CN111548579A CN 111548579 A CN111548579 A CN 111548579A CN 202010369835 A CN202010369835 A CN 202010369835A CN 111548579 A CN111548579 A CN 111548579A
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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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention relates to the technical field of high polymer materials, and provides a migration-resistant polyvinyl chloride cable material and a preparation method thereof, wherein the migration-resistant polyvinyl chloride cable material consists of polyvinyl chloride, a filler, a stabilizer and a flame retardant, and further comprises a plasticizer, a lubricant and the like, wherein the plasticizer refers to di (monoacetyl, monoepoxy oleoyl) glyceride adipate; the raw materials are mixed and granulated at a proper weight ratio, and the preparation process flow is as follows: firstly, stirring the raw materials for 5-15 minutes to ensure that the material temperature reaches 130-; the cable material prepared by the formula and the method has the advantages of excellent migration resistance, low viscosity, easy processing, stable quality and the like.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a migration-resistant polyvinyl chloride cable material and a preparation method thereof.
Background
The polyvinyl chloride cable material needs to be added with a large amount of plasticizer due to the requirements of processability, flexibility and the like, but in the actual long-term use process, the plasticizer in the cable material migrates out to easily cause the cable material to become hard and brittle, meanwhile, the migrated plasticizer easily pollutes parts contacting with the cable material, and if the product is tightly contacted with a human body, the health and safety of the human body are further affected, so that the migration resistance of the polyvinyl chloride cable material needs to be enhanced.
In order to inhibit the migration of the plasticizer from the polyvinyl chloride cable material, the conventional method is to add a high molecular weight polyester plasticizer, and the commercially available adipic acid and glutaric acid series polyester plasticizer products in the market are prepared by using petroleum resources as raw materials, have high production cost and do not meet the requirements of sustainable development of resources, so that the development of a polyvinyl chloride cable material with high migration resistance and environmental protection is needed.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention aims to provide a polyvinyl chloride cable material with environmental protection and migration resistance and a preparation method thereof.
In order to solve the technical problems, the invention aims to realize the following technical scheme:
a migration-resistant polyvinyl chloride cable material comprises the following substances:
wherein the polyvinyl chloride is pure resin powder with the average polymerization degree of 1000-3000.
Wherein: the filler is a mixture of light calcium carbonate and heavy calcium carbonate with the fineness of more than 5000 meshes.
Wherein: the stabilizer is a nontoxic environment-friendly Ca and Zn stabilizer.
Wherein: the flame retardant is a mixture of aluminum hydroxide with the fineness of more than 5000 meshes and antimony trioxide.
Wherein: the plasticizer is adipic acid di (monoacetyl, monoepoxy oleoyl) glyceride, and is a functional environment-friendly plasticizer synthesized by using vegetable oil as a raw material through the steps of ester exchange, high-temperature esterification, acetylation, epoxidation and the like.
Wherein: the lubricant is one or more mixtures of fatty acid and polyethylene wax.
The purpose of the invention is realized by the following technical scheme:
a migration-resistant polyvinyl chloride cable material and a preparation method thereof comprise the following steps:
a. weighing the raw materials in a weight ratio;
b. pouring the prepared mixture into a stirring pot for mixing, wherein the mixing temperature is 130-145 ℃;
c. discharging the mixed raw materials into a turnover internal mixer for mixing, wherein the mixing temperature is 160 ℃ and 175 ℃, and the plasticizing effect is enhanced;
d. and conveying the mixed raw materials to a single screw machine, and extruding and plasticizing the rubber material at the extrusion temperature of 120-140 ℃.
e. And (3) carrying out hot cutting, air cooling conveying, vibration screening, material storage and packaging on the extruded and plasticized rubber material through an eye die.
The invention has the beneficial effects that:
the adipic acid di (monoacetyl, monoepoxy oleoyl) glyceride has high content, can effectively endow the polyvinyl chloride cable material with excellent migration resistance, can effectively ensure the sustainable development of raw materials of the product, has stable processing process, can be recycled by 100 percent, and is also beneficial to improving the production efficiency and reducing the production cost.
Detailed Description
The following examples illustrate the invention in detail: the present example is carried out on the premise of the technical scheme of the present invention, and detailed embodiments and processes are given, but the scope of the present invention is not limited to the following examples, and the experimental methods without specific conditions noted in the following examples are generally performed according to conventional conditions.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described below with specific embodiments, and the technical solutions in the embodiments of the present invention are clearly and completely described. The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values.
For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For a further understanding of the invention, reference will now be made in detail to specific embodiments of the invention:
the invention relates to a migration-resistant polyvinyl chloride cable material and a preparation method thereof, wherein the preparation method comprises the following steps:
a: weighing the following substances in parts by weight, 100 parts by weight of polyvinyl chloride; 20-40 parts of a filler; 3-15 parts of a stabilizer; 5-15 parts of a flame retardant; 45-75 parts of a plasticizer; 0.5 to 3 weight portions of lubricant are mixed;
b: pouring the prepared mixture into a stirring pot for mixing, wherein the mixing temperature is 120-145 ℃; in this embodiment, the mixing means that the mixing is performed at a low speed and then at a high speed, the mixing time is determined according to the use condition or the weight ratio, and the mixing manner is not limited, and may be performed at a low speed and then at a high speed and then at a low speed, or may be performed at a high speed only, and the mixing manner and the mixing time are not limited thereto;
c: discharging the mixed raw materials to a strong pressure turnover type internal mixer for mixing, wherein the mixing temperature is 160-175 ℃, and the plasticizing effect is enhanced;
d: conveying the mixed raw materials to a single screw machine, extruding and plasticizing rubber materials, wherein the extrusion temperature is 120-140 ℃; the diameter of the single screw machine in the embodiment is 110mm, and can also be 90 mm, 150mm or 180mm, and the diameter is not limited to 110mm according to the use condition;
e: and (3) carrying out hot cutting, air cooling conveying and vibration screening on the extruded and plasticized rubber material through an eye die, storing the rubber material and packaging.
In the invention, the polyvinyl chloride is pure resin powder with the average polymerization degree of 1000-3000, and the preferable condition is that the polyvinyl chloride is pure resin powder with the average polymerization degree of 1300-1800.
In the invention, the filler is a mixture of light calcium carbonate and heavy calcium carbonate with the fineness of more than 5000 meshes, and the preferable condition is that the filler is the fineness of 6000-8000 meshes.
In the invention, the stabilizer is a compound of Ca and Zn, and has the characteristics of no toxicity and environmental protection.
In the invention, the flame retardant is a mixture of aluminum hydroxide and antimony trioxide with the fineness of more than 5000 meshes, and under the preferable condition, the flame retardant is a mixture of aluminum hydroxide and antimony trioxide with the fineness of 6000-8000 meshes.
In the invention, the plasticizer is adipic acid di (monoacetyl, monoepoxy oleoyl) glyceride.
In the present invention, the lubricant is one or more mixtures of fatty acid and polyethylene wax.
The present invention will be described in further detail with reference to examples.
Example 1:
100 parts by weight of polyvinyl chloride; 30 parts by weight of a filler; 6 parts of a stabilizer; 10 parts of a flame retardant; 45 parts by weight of a plasticizer; 0.8 part by weight of lubricant, mixing the materials in a high-speed mixer at a low speed for 3 minutes, then mixing at a high speed for 8 minutes, controlling the mixing temperature to 135 ℃, discharging the materials to a powerful pressure turnover internal mixer for mixing to 170 ℃, enhancing the plasticization, and finally feeding the materials to a single screw extruder with the diameter of 110mm for extrusion plasticization, wherein the extrusion temperature is 130 ℃.
Example 2:
100 parts by weight of polyvinyl chloride; 30 parts by weight of a filler; 6 parts of a stabilizer; 10 parts of a flame retardant; 60 parts by weight of a plasticizer; 0.8 part by weight of lubricant, the materials are rotated at low speed for 3 minutes and high speed for 8 minutes in a high-speed mixer, mixed to 135 ℃, discharged to a powerful pressure turnover internal mixer, mixed to 170 ℃ for enhanced plasticization, and finally fed to a single screw extruder for extrusion plasticization, wherein the extrusion temperature is 130 ℃.
Example 3:
100 parts by weight of polyvinyl chloride and 30 parts by weight of filler; 6 parts of a stabilizer; 10 parts of a flame retardant; 75 parts by weight of a plasticizer; 0.8 part by weight of lubricant, the materials are rotated at low speed for 3 minutes and high speed for 8 minutes in a high-speed mixer, mixed to 135 ℃, discharged to a powerful pressure turnover internal mixer, mixed to 170 ℃, reinforced and plasticized, finally, the materials are fed to a single screw extruder to be extruded and plasticized, and the extrusion temperature is 130 ℃.
Comparative example 1:
100 parts by weight of polyvinyl chloride; 30 parts by weight of a filler; 6 parts of a stabilizer; 10 parts of a flame retardant; 60 parts by weight of a polyester plasticizer; 0.8 part by weight of lubricant, the materials are rotated at a low speed for 3 minutes and a high speed for 8 minutes in a high-speed mixer, mixed to 135 ℃, discharged to a powerful pressure turnover internal mixer, mixed to 170 ℃, reinforced to plasticize, and finally fed to a single-screw extruder for extrusion and plasticization, wherein the extrusion temperature is 130 ℃, the plasticizer is a polyester plasticizer for chemical industry of Changchun, and the trade mark is as follows: PN-1030.
Comparative example 2:
100 parts by weight of polyvinyl chloride; 30 parts by weight of a filler; 6 parts of a stabilizer; 10 parts of a flame retardant; 60 parts by weight of dioctyl terephthalate; 0.8 part by weight of lubricant, the materials are rotated at low speed for 3 minutes and high speed for 8 minutes in a high-speed mixer, mixed to 135 ℃, discharged to a strong pressure turnover internal mixer for mixing to 170 ℃, reinforced for plasticization, and finally fed to a single-screw extruder for extrusion and plasticization, wherein the extrusion temperature is 130 ℃, the plasticizer is dioctyl terephthalate formed by Zhongshan union, and the trade mark is as follows: UN 488.
And (3) performance testing:
the tensile strength and the elongation at break performance are tested according to UL1581 standard;
migration resistance test conditions: placing the mixture in a thermostat at 100 ℃ for 24 hours, taking out the mixture, weighing and measuring the mass loss of the mixture to obtain a weight loss ratio (%), wherein the smaller the weight loss ratio is, the better the migration resistance is
The formulations (in parts by weight) and the raw material properties of examples 1 to 3 and comparative examples 4 to 5 are shown in the following table (1):
as can be seen by comparing example 2 and comparative example 1 in the table (1), the migration resistance of the polyvinyl chloride cable material can reach or even exceed the commercial polyester plasticizer mark by adding the adipic acid di (monoacetyl, monoepoxy oleoyl) glyceride plasticizer; as can be seen by comparing example 2 with comparative example 2, the migration resistance of the polyvinyl chloride cable material is far better than that of the polyvinyl chloride cable material added with dioctyl terephthalate by adding the plasticizer of di (monoacetyl, monoepoxy oleoyl) glyceride adipate.
The migration-resistant polyvinyl chloride cable material and the preparation method thereof provided by the invention are described in detail above, and the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, as for a person skilled in the art of the present invention, there may be variations in the embodiments and applications of the invention according to the spirit of the present invention, and there may be other embodiments and modifications thereof by those skilled in the art without departing from the spirit and essence of the invention, and these variations and modifications should fall within the protection scope of the claims of the present invention, and as described above, the content of the present specification should not be construed as limiting the invention.
Claims (8)
1. The migration-resistant polyvinyl chloride cable material is characterized by comprising the following raw materials in parts by weight: 100 parts by weight of polyvinyl chloride; 10-60 parts of a filler; 4-10 parts of a stabilizer; 5-15 parts of a flame retardant; 45-75 parts of a plasticizer; 0.5-2 parts of lubricant.
2. The migration resistant polyvinyl chloride cable material as claimed in claim 1, wherein the polyvinyl chloride is pure resin powder with a degree of polymerization of 1000-3000.
3. The migration resistant polyvinyl chloride cable material according to claim 1, wherein the filler is a mixture of light calcium carbonate and heavy calcium carbonate having a fineness of 5000 mesh or more.
4. The migration resistant polyvinyl chloride cable material according to claim 1, wherein the stabilizer is a Ca and Zn stabilizer.
5. The migration resistant polyvinyl chloride cable material according to claim 4, wherein the flame retardant is a mixture of aluminum hydroxide and antimony trioxide with a fineness of 5000 mesh or more.
6. The migration resistant polyvinyl chloride cable material according to claim 1, wherein said plasticizer is di (monoacetyl, monoepoxy oleoyl) glyceride adipate.
7. The migration resistant polyvinyl chloride cable material according to claim 1, wherein the lubricant is one or more mixtures of fatty acids and polyethylene wax.
8. A process for preparing migration resistant polyvinyl chloride cable material according to any of claims 1 to 7, characterized in that it comprises the following steps:
a: mixing polyvinyl chloride, a filler, a stabilizer, a flame retardant, a plasticizer and a lubricant according to the weight ratio;
b: pouring the prepared mixture into a stirring pot for mixing, wherein the mixing temperature is 130-145 ℃;
c: mixing the mixed raw materials at the mixing temperature of 160-175 ℃;
d: and conveying the mixed raw materials to a single screw machine, extruding and plasticizing the rubber material at the extrusion temperature of 120-140 ℃ to obtain the cable material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010054192X | 2020-01-17 | ||
| CN202010054192 | 2020-01-17 |
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| CN111548579A true CN111548579A (en) | 2020-08-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112480573A (en) * | 2020-12-11 | 2021-03-12 | 深圳市帝源新材料科技股份有限公司 | Modified polyvinyl chloride cable material, preparation method thereof and cable |
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| US20180339824A1 (en) * | 2016-11-25 | 2018-11-29 | Waldemar Vladimir SCHMIDT | Co-extruded plasticized pvc-based packaging films and method for its production |
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2020
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| CN104004296A (en) * | 2014-05-13 | 2014-08-27 | 博硕科技(江西)有限公司 | Antimony-free flame-retardant polyvinyl chloride cable material and preparation method thereof |
| US20180339824A1 (en) * | 2016-11-25 | 2018-11-29 | Waldemar Vladimir SCHMIDT | Co-extruded plasticized pvc-based packaging films and method for its production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112480573A (en) * | 2020-12-11 | 2021-03-12 | 深圳市帝源新材料科技股份有限公司 | Modified polyvinyl chloride cable material, preparation method thereof and cable |
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