CN111944255A - High-resistance flame-retardant PVC cable sheath material - Google Patents
High-resistance flame-retardant PVC cable sheath material Download PDFInfo
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- CN111944255A CN111944255A CN202010742306.XA CN202010742306A CN111944255A CN 111944255 A CN111944255 A CN 111944255A CN 202010742306 A CN202010742306 A CN 202010742306A CN 111944255 A CN111944255 A CN 111944255A
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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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/325—Calcium, strontium or barium phosphate
-
- 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
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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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
- C08L2201/02—Flame or fire retardant/resistant
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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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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Insulated Conductors (AREA)
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses the technical field of cable sheath materials, in particular to a high-resistance flame-retardant PVC cable sheath material, which comprises the following raw materials: PVC resin powder, dioctyl terephthalate, epoxy soybean oil plasticizer, calcium carbonate, kaolin, calcium-zinc composite stabilizer, antimony trioxide flame retardant, zinc borate flame retardant, chlorinated polyethylene, ammonium hydrogen phosphate, calcium hydroxide and the like, ammonium hydrogen phosphate and calcium hydroxide are added into a PVC resin powder base material, calcium phosphate is generated after the reaction of the ammonium hydrogen phosphate and the calcium hydroxide and is deposited on the surface of PVC resin, the electrical property of the PVC resin can be effectively improved, namely the volume resistivity of the PVC resin is effectively improved, the kaolin is added into the PVC resin as an inorganic filler for mainly improving the volume resistivity of the PVC resin, and the kaolin, the ammonium hydrogen phosphate and the calcium hydroxide have a synergistic effect, so that the volume resistivity of the PVC resin is greatly improved, and the PVC resin is suitable for an ultrahigh-pressure working environment.
Description
Technical Field
The invention relates to the technical field of cable sheath materials, in particular to a high-resistance flame-retardant PVC cable sheath material.
Background
The PVC cable material is particles prepared by taking polyvinyl chloride as basic resin, adding inorganic fillers such as a stabilizer, a plasticizer, calcium carbonate and the like, additives such as an auxiliary agent, a lubricant and the like, and mixing, kneading and extruding. The PVC cable material has low price and excellent performance, and plays an important role in the insulation protection material of electric wires and cables for a long time, at present, the plastic accounts for 91 percent of the coating material, the polyvinyl chloride accounts for 80 percent of the plastic, the polyvinyl chloride is a chlorine-containing polymer, has better flame retardant performance and various performances required by cable production and use, has low price, and is one of the most widely used plastics in the world, the existing PVC cable material is generally difficult to be suitable for the working environment of ultrahigh voltage, and therefore, the high-resistance flame retardant PVC cable sheath material is provided.
Disclosure of Invention
The invention aims to provide a high-resistance flame-retardant PVC cable sheath material to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a high-resistance flame-retardant PVC cable sheath material comprises the following raw materials in parts by weight: 100 parts of 1300PVC resin powder, 40-50 parts of dioctyl terephthalate, 15-20 parts of epoxidized soybean oil plasticizer, 20-30 parts of calcium carbonate, 14-19 parts of kaolin, 6-10 parts of calcium-zinc composite stabilizer, 5-10 parts of antimony trioxide flame retardant, 4-8 parts of zinc borate flame retardant, 5-12 parts of chlorinated polyethylene, 3-5 parts of ammonium hydrogen phosphate and 3-5 parts of calcium hydroxide.
Preferably, the high-resistance flame-retardant PVC cable sheath material comprises the following raw materials in parts by weight: 100 parts of PVC resin powder, 42-48 parts of dioctyl terephthalate, 17-19 parts of epoxidized soybean oil plasticizer, 23-27 parts of calcium carbonate, 15-18 parts of kaolin, 7-9 parts of calcium-zinc composite stabilizer, 6-9 parts of antimony trioxide flame retardant, 5-7 parts of zinc borate flame retardant, 6-10 parts of chlorinated polyethylene, 4 parts of ammonium hydrogen phosphate and 4 parts of calcium hydroxide.
Preferably, the high-resistance flame-retardant PVC cable sheath material comprises the following raw materials in parts by weight: 100 parts of PVC resin powder, 45 parts of dioctyl terephthalate, 18 parts of epoxidized soybean oil plasticizer, 25 parts of calcium carbonate, 16 parts of kaolin, 8 parts of calcium-zinc composite stabilizer, 7 parts of antimony trioxide flame retardant, 6 parts of zinc borate flame retardant, 8 parts of chlorinated polyethylene, 4 parts of ammonium hydrogen phosphate and 4 parts of calcium hydroxide.
A high-resistance flame-retardant PVC cable sheath material is prepared by the following steps:
step 1: weighing the raw materials, adding the raw materials into a high-speed kneader according to corresponding weight parts, and kneading the materials, wherein the kneading temperature is 95-105 ℃, and the kneading time is 6-9 min;
step 2: adding the material kneaded in the step 1 into a double-screw extrusion granulator, and extruding and granulating the material at the temperature of 130-150 ℃;
and step 3: and 2, after the materials are granulated in the step 2, cooling and packaging.
The invention has the beneficial effects that: a high-resistance flame-retardant PVC cable sheath material comprises PVC resin powder and calcium carbonate which are respectively used as a base material and a reinforcing agent of a PVC cable material to form a basic framework of the PVC cable material, ammonium hydrogen phosphate and calcium hydroxide are added into the PVC resin powder base material, calcium phosphate is generated after the reaction of the ammonium hydrogen phosphate and the calcium hydroxide and is deposited on the surface of the PVC resin, the electrical property of the PVC resin can be effectively improved, namely the volume resistivity of the PVC resin is effectively improved, dioctyl terephthalate is a main plasticizer with excellent performance, and has the advantages of heat resistance, cold resistance, difficult volatilization, extraction resistance, flexibility, electric insulation and the like, the kaolin plays a role in plasticizing effect on the PVC resin together with an epoxy soybean oil plasticizer, kaolin is used as an inorganic filler for mainly improving the volume resistivity of the PVC resin and is added into the PVC resin, and the kaolin, the ammonium hydrogen phosphate and the calcium hydroxide play a synergistic effect, so, the zinc borate flame retardant is suitable for an ultrahigh-pressure working environment, replaces toxic stabilizers such as lead-cadmium salts and organic tin and has quite good thermal stability, light stability, transparency and tinting strength, and in PVC resin, the processing performance is good, the thermal stability is good, and the antimony trioxide flame retardant and the zinc borate flame retardant jointly act to enable the PVC resin to have good flame retardant performance.
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example 1:
step 1: weighing raw materials, adding 100 parts of 1300PVC resin powder, 40 parts of dioctyl terephthalate, 15 parts of epoxidized soybean oil plasticizer, 20 parts of calcium carbonate, 14 parts of kaolin, 6 parts of calcium-zinc composite stabilizer, 5 parts of antimony trioxide flame retardant, 4 parts of zinc borate flame retardant, 5 parts of chlorinated polyethylene, 3 parts of ammonium hydrogen phosphate and 3 parts of calcium hydroxide into a high-speed kneader to knead the materials, wherein the kneading temperature is 95 ℃ and the kneading time is 6 min;
step 2: adding the material kneaded in the step (1) into a double-screw extrusion granulator, and extruding and granulating the material at 130 ℃;
and step 3: and 2, after the materials are granulated in the step 2, cooling and packaging.
Example 2:
step 1: weighing raw materials, adding 100 parts of 1300PVC resin powder, 42 parts of dioctyl terephthalate, 17 parts of epoxidized soybean oil plasticizer, 23 parts of calcium carbonate, 15 parts of kaolin, 7 parts of calcium-zinc composite stabilizer, 6 parts of antimony trioxide flame retardant, 5 parts of zinc borate flame retardant, 6 parts of chlorinated polyethylene, 4 parts of ammonium hydrogen phosphate and 4 parts of calcium hydroxide into a high-speed kneader to knead the materials, wherein the kneading temperature is 98 ℃, and the kneading time is 7 min;
step 2: adding the material kneaded in the step (1) into a double-screw extrusion granulator, and extruding and granulating the material at 135 ℃;
and step 3: and 2, after the materials are granulated in the step 2, cooling and packaging.
Example 3:
step 1: weighing raw materials, adding 100 parts of 1300PVC resin powder, 45 parts of dioctyl terephthalate, 18 parts of epoxidized soybean oil plasticizer, 25 parts of calcium carbonate, 16 parts of kaolin, 8 parts of calcium-zinc composite stabilizer, 8 parts of antimony trioxide flame retardant, 6 parts of zinc borate flame retardant, 8 parts of chlorinated polyethylene, 4 parts of ammonium hydrogen phosphate and 4 parts of calcium hydroxide into a high-speed kneader to knead the materials, wherein the kneading temperature is 100 ℃, and the kneading time is 8 min;
step 2: adding the material kneaded in the step (1) into a double-screw extrusion granulator, and extruding and granulating the material at 140 ℃;
and step 3: and 2, after the materials are granulated in the step 2, cooling and packaging.
Example 4:
step 1: weighing raw materials, adding 100 parts of 1300PVC resin powder, 48 parts of dioctyl terephthalate, 19 parts of epoxidized soybean oil plasticizer, 27 parts of calcium carbonate, 18 parts of kaolin, 9 parts of calcium-zinc composite stabilizer, 9 parts of antimony trioxide flame retardant, 7 parts of zinc borate flame retardant, 10 parts of chlorinated polyethylene, 4 parts of ammonium hydrogen phosphate and 4 parts of calcium hydroxide into a high-speed kneader to knead the materials, wherein the kneading temperature is 102 ℃ and the kneading time is 8 min;
step 2: adding the material kneaded in the step (1) into a double-screw extrusion granulator, and extruding and granulating the material at 145 ℃;
and step 3: and 2, after the materials are granulated in the step 2, cooling and packaging.
Example 5:
step 1: weighing raw materials, adding 100 parts of 1300PVC resin powder, 50 parts of dioctyl terephthalate, 20 parts of epoxidized soybean oil plasticizer, 30 parts of calcium carbonate, 19 parts of kaolin, 10 parts of calcium-zinc composite stabilizer, 10 parts of antimony trioxide flame retardant, 8 parts of zinc borate flame retardant, 12 parts of chlorinated polyethylene, 5 parts of ammonium hydrogen phosphate and 5 parts of calcium hydroxide into a high-speed kneader to knead the materials, wherein the kneading temperature is 105 ℃ and the kneading time is 9 min;
step 2: adding the material kneaded in the step (1) into a double-screw extrusion granulator, and extruding and granulating the material at 150 ℃;
and step 3: and 2, after the materials are granulated in the step 2, cooling and packaging.
The physical and chemical properties of the high-resistance flame-retardant PVC cable sheath material prepared in the examples 1 to 5 are tested, and the test results are as follows:
the high-resistance flame-retardant PVC cable sheath has the advantages of high resistance and high electrical property, and the volume resistivity of the high-resistance flame-retardant PVC cable sheath is more than 3 multiplied by 10 under the environment of normal temperature and 20 DEG C12Omega/m, the flame-retardant oxygen index is more than or equal to 30 percent, the low-temperature embrittlement temperature reaches-20 ℃, and the thermal stability time at 200 ℃ is more than 80 min.
Physical and chemical properties of high-resistance flame-retardant PVC cable sheath material
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a fire-retardant PVC cable sheath material of high resistance which characterized in that: the raw materials and corresponding parts by weight are as follows: 100 parts of PVC resin powder, 40-50 parts of dioctyl terephthalate, 15-20 parts of epoxidized soybean oil plasticizer, 20-30 parts of calcium carbonate, 14-19 parts of kaolin, 6-10 parts of calcium-zinc composite stabilizer, 5-10 parts of antimony trioxide flame retardant, 4-8 parts of zinc borate flame retardant, 5-12 parts of chlorinated polyethylene, 3-5 parts of ammonium hydrogen phosphate and 3-5 parts of calcium hydroxide.
2. The high-resistance flame-retardant PVC cable sheath material as claimed in claim 1, wherein: the raw materials and corresponding parts by weight are as follows: 100 parts of PVC resin powder, 42-48 parts of dioctyl terephthalate, 17-19 parts of epoxidized soybean oil plasticizer, 23-27 parts of calcium carbonate, 15-18 parts of kaolin, 7-9 parts of calcium-zinc composite stabilizer, 6-9 parts of antimony trioxide flame retardant, 5-7 parts of zinc borate flame retardant, 6-10 parts of chlorinated polyethylene, 4 parts of ammonium hydrogen phosphate and 4 parts of calcium hydroxide.
3. The high-resistance flame-retardant PVC cable sheath material as claimed in claim 2, wherein: the raw materials and corresponding parts by weight are as follows: 100 parts of PVC resin powder, 45 parts of dioctyl terephthalate, 18 parts of epoxidized soybean oil plasticizer, 25 parts of calcium carbonate, 16 parts of kaolin, 8 parts of calcium-zinc composite stabilizer, 7 parts of antimony trioxide flame retardant, 6 parts of zinc borate flame retardant, 8 parts of chlorinated polyethylene, 4 parts of ammonium hydrogen phosphate and 4 parts of calcium hydroxide.
4. The high-resistance flame-retardant PVC cable sheath material according to any one of claims 1 to 3, which is characterized in that: the preparation method comprises the following steps:
step 1: weighing the raw materials, adding the raw materials into a high-speed kneader according to corresponding weight parts, and kneading the materials, wherein the kneading temperature is 95-105 ℃, and the kneading time is 6-9 min;
step 2: adding the material kneaded in the step 1 into a double-screw extrusion granulator, and extruding and granulating the material at the temperature of 130-150 ℃;
and step 3: and 2, after the materials are granulated in the step 2, cooling and packaging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010742306.XA CN111944255A (en) | 2020-07-29 | 2020-07-29 | High-resistance flame-retardant PVC cable sheath material |
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| CN202010742306.XA CN111944255A (en) | 2020-07-29 | 2020-07-29 | High-resistance flame-retardant PVC cable sheath material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114015174A (en) * | 2021-11-16 | 2022-02-08 | 广东新亚光电缆股份有限公司 | Anti-freezing low-temperature-resistant PVC modified material at-50 ℃ and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731933A (en) * | 2012-06-26 | 2012-10-17 | 江苏三角洲塑化有限公司 | Low shrinkage flame retardation PVC protective layer material used for indoor optical cable and its preparation method |
| CN107915920A (en) * | 2017-11-14 | 2018-04-17 | 福建南平太阳电缆股份有限公司 | A kind of high resistance flame-retardant flexible type wire-insulating material and its manufacture method |
| CN110760139A (en) * | 2018-07-27 | 2020-02-07 | 中国石油化工股份有限公司 | High-resistivity flame-retardant polyvinyl chloride cable material composition |
| CN111138780A (en) * | 2020-01-17 | 2020-05-12 | 陕西兴汉澜墨科技有限公司 | Preparation method of antistatic PVC composite material |
-
2020
- 2020-07-29 CN CN202010742306.XA patent/CN111944255A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731933A (en) * | 2012-06-26 | 2012-10-17 | 江苏三角洲塑化有限公司 | Low shrinkage flame retardation PVC protective layer material used for indoor optical cable and its preparation method |
| CN107915920A (en) * | 2017-11-14 | 2018-04-17 | 福建南平太阳电缆股份有限公司 | A kind of high resistance flame-retardant flexible type wire-insulating material and its manufacture method |
| CN110760139A (en) * | 2018-07-27 | 2020-02-07 | 中国石油化工股份有限公司 | High-resistivity flame-retardant polyvinyl chloride cable material composition |
| CN111138780A (en) * | 2020-01-17 | 2020-05-12 | 陕西兴汉澜墨科技有限公司 | Preparation method of antistatic PVC composite material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114015174A (en) * | 2021-11-16 | 2022-02-08 | 广东新亚光电缆股份有限公司 | Anti-freezing low-temperature-resistant PVC modified material at-50 ℃ and preparation method thereof |
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Application publication date: 20201117 |