CN108456380A - A kind of fire resistant environment-friendly CABLE MATERIALS and preparation method thereof - Google Patents
A kind of fire resistant environment-friendly CABLE MATERIALS and preparation method thereof Download PDFInfo
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- CN108456380A CN108456380A CN201810281768.9A CN201810281768A CN108456380A CN 108456380 A CN108456380 A CN 108456380A CN 201810281768 A CN201810281768 A CN 201810281768A CN 108456380 A CN108456380 A CN 108456380A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- 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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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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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- Health & Medical Sciences (AREA)
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Abstract
The invention discloses a kind of fire resistant environment-friendly CABLE MATERIALSs, include the raw material of following parts by weight：36 42 parts of Corvic, 32 40 parts of polyethylene terephthalate, 26 30 parts of dibutyl maleate, 16 22 parts of calcium stearate, 16 22 parts of superfine tin oxide antimony, 14 18 parts of the black powder of ferromanganese, 10 14 parts of polyvinyl alcohol, 8 12 parts of levelling agent, 6 10 parts of toughener, 13 parts of filler.The object of the present invention is to provide a kind of fire resistant environment-friendly CABLE MATERIALS, the CABLE MATERIALS not only can high temperature resistant, while pull resistance is strong, reasonable raw material proportioning, has higher use value and good application prospect.
Description
Technical field
The present invention relates to CABLE MATERIALS technical fields, and in particular to a kind of fire resistant environment-friendly CABLE MATERIALS and preparation method thereof.
Background technology
Cable is typically by several or the cable of similar rope made of several groups of wire strandings, between every group of conducting wire mutually absolutely
Edge, and be often twisted into around a center, entire outside is surrounded by the coating of high-insulation, and multi rack is located at aerial or is mounted in ground
Under, it is water-bed, be used for telecommunication or power Transmission, electric system：The electric wire product that electric system uses mainly has aerial bare electric
Line, bus-bar（Busbar）, power cable（Plastic ca-ble, oilpaper power cable（Substantially it is replaced by plastic power cable）, rubber set cable,
Aerial insulated cable）, branch cable, electromagnetic wire and power equipment electrical equipment electric wire etc., the information transmission system：With
Mainly there are local cable, camera cable, electronic cable, radio-frequency cable, optical cable, data electricity in the electric wire of the information transmission system
Cable, electromagnetic wire, power communication or other composite cables etc., mechanical equipment, instrument system：In addition to aerial bare wire almost its
His all products have application, but mainly power cable, electromagnetic wire, data cable, instrument and meter cable etc. is now with society
Meeting expanding economy, the dosage of electric wire increases rapidly, higher and higher to the quality requirement of cable, to electricity in some industries
Cable high temperature resistant, pull resistance, feature of environmental protection etc. have very high requirement.
Though existing cable can not be fine with high temperature resistant, pull resistance, the two cannot be mutually coordinated, limits cable
Technology develops.
Invention content
In view of the drawbacks of the prior art, the object of the present invention is to provide a kind of fire resistant environment-friendly CABLE MATERIALS, the CABLE MATERIALSs
Not only can high temperature resistant, while pull resistance is strong, reasonable raw material proportioning, has higher use value and good application prospect.
The present invention solves technical problem and adopts the following technical scheme that：
The present invention provides a kind of fire resistant environment-friendly CABLE MATERIALSs, include the raw material of following parts by weight：
36-42 parts of Corvic, 32-40 parts of polyethylene terephthalate, 26-30 parts of dibutyl maleate, tristearin
Sour calcium 16-22 parts, 16-22 parts of superfine tin oxide antimony, ferromanganese is powder 14-18 parts black, 10-14 parts of polyvinyl alcohol, 8-12 parts of levelling agent,
6-10 parts of toughener, 1-3 parts of filler.
Preferably, the fire resistant environment-friendly CABLE MATERIALS includes the raw material of following parts by weight：
39 parts of Corvic, 36 parts of polyethylene terephthalate, 28 parts of dibutyl maleate, 19 parts of calcium stearate,
16 parts of the black powder of 19 parts of superfine tin oxide antimony, ferromanganese, 12 parts of polyvinyl alcohol, 10 parts of levelling agent, 8 parts of toughener, 2 parts of filler.
Preferably, the levelling agent is alkyl-modified organosiloxane.
Preferably, the toughener is acrylonitrile-butadiene-styrene copolymer, haloflex according to weight ratio 5:2
The mixture of composition.
Preferably, the filler is carborundum powder, phosphatization silica flour, kaolin powder according to weight ratio（9-11）:（5-9）:3 groups
At mixture.
Preferably, the filler is carborundum powder, phosphatization silica flour, kaolin powder according to weight ratio 10:7:The mixing of 3 compositions
Object.
The present invention also provides a kind of preparation methods of fire resistant environment-friendly CABLE MATERIALS, include the following steps：
Step 1 weighs prepare each component raw material as required；
Corvic, polyethylene terephthalate, dibutyl maleate are added in homogenizer step 2,
Rotating speed is 650-750r/min, stirs 45-55min, and mixture A is made；
Step 3, by mixture A made from step 2, calcium stearate, superfine tin oxide calcium halophosphate activated by antimony andmanganese iron oxide black powder, polyvinyl alcohol
It is added in kneading machine and is kneaded, melting temperature is 155-165 DEG C, and mixing time is 55-65 minutes, obtains epoxy glue B；
Epoxy glue B obtained, levelling agent, toughener, filler are sequentially sent in double screw extruder by step 4, adjust PH
It is worth 8.0-9.0, double screw extruder is divided into four operating temperatures, and the first operating temperature is 124-130 DEG C, the second operating temperature
It it is 130-140 DEG C, third operating temperature is 140-150 DEG C, and the 4th operating temperature is 150-160 DEG C, and extruding pelletization is to get this hair
Bright fire resistant environment-friendly CABLE MATERIALS.
Preferably, the preparation process of the fire resistant environment-friendly CABLE MATERIALS is：
Step 1 weighs prepare each component raw material as required；
Corvic, polyethylene terephthalate, dibutyl maleate are added in homogenizer step 2,
Rotating speed is 700r/min, stirs 50min, and mixture A is made；
Step 3, by mixture A made from step 2, calcium stearate, superfine tin oxide calcium halophosphate activated by antimony andmanganese iron oxide black powder, polyvinyl alcohol
It is added in kneading machine and is kneaded, melting temperature is 160 DEG C, and mixing time is 60 minutes, obtains epoxy glue B；
Epoxy glue B obtained, levelling agent, toughener, filler are sequentially sent in double screw extruder by step 4, adjust PH
It is worth 8.5, double screw extruder is divided into four operating temperatures, and the first operating temperature is 127 DEG C, and the second operating temperature is 135 DEG C,
Third operating temperature is 145 DEG C, and the 4th operating temperature is 155 DEG C, and extruding pelletization is to get fire resistant environment-friendly cable of the invention
Material.
Compared with prior art, the present invention has following advantageous effect：
（1）A kind of fire resistant environment-friendly CABLE MATERIALS of the present invention, Corvic have good heat resistance, toughness and prolong
Malleability, polyethylene terephthalate can still be used for a long time at 120 DEG C, while physical mechanical property is good, maleic acid two
Butyl ester can reinforcing material toughness, three is collocated with each other as main body base-material, ensures the heat-resisting quantity of material and tough
Property, the thermal stability that can improve CABLE MATERIALS, while more easily molded in process, superfine tin oxide antimony is added in calcium stearate
It can make to form reunion between particle, in granulation prepares electrical cable step, keep cable coagulability stronger, then the mechanicalness of cable
It can be further enhanced.
（2）A kind of fire resistant environment-friendly CABLE MATERIALS of the present invention, filler are carborundum powder, phosphatization silica flour, kaolin powder group
At mixture, carborundum powder stable chemical performance, wear-resisting property are good, kaolin have excellent fire resistance, have simultaneously
Very strong acid resistance, the raw material in filler carry out the compatibility of science, can further improve the comprehensive performance of CABLE MATERIALS.
（3）A kind of fire resistant environment-friendly CABLE MATERIALS of the present invention, a kind of fire resistant environment-friendly CABLE MATERIALS, the CABLE MATERIALS is not only
Can high temperature resistant, while pull resistance is strong, reasonable raw material proportioning, has higher use value and good application prospect.
Specific implementation mode
With reference to specific embodiment, technical scheme in the embodiment of the invention is clearly and completely described, shows
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
Embodiment 1.
A kind of fire resistant environment-friendly CABLE MATERIALS of the present embodiment, includes the raw material of following parts by weight：
36 parts of Corvic, 32 parts of polyethylene terephthalate, 26 parts of dibutyl maleate, 16 parts of calcium stearate,
14 parts of the black powder of 16 parts of superfine tin oxide antimony, ferromanganese, 10 parts of polyvinyl alcohol, 8 parts of levelling agent, 6 parts of toughener, 1 part of filler.
The fire resistant environment-friendly CABLE MATERIALS of the present embodiment includes the raw material of following parts by weight：
The levelling agent of the present embodiment is alkyl-modified organosiloxane.
The toughener of the present embodiment is acrylonitrile-butadiene-styrene copolymer, haloflex according to weight ratio 5:2
The mixture of composition.
The filler of the present embodiment is carborundum powder, phosphatization silica flour, kaolin powder according to weight ratio 9:5:The mixing of 3 compositions
Object.
A kind of preparation method of fire resistant environment-friendly CABLE MATERIALS of the present embodiment, includes the following steps：
Step 1 weighs prepare each component raw material as required；
Corvic, polyethylene terephthalate, dibutyl maleate are added in homogenizer step 2,
Rotating speed is 650r/min, stirs 45min, and mixture A is made；
Step 3, by mixture A made from step 2, calcium stearate, superfine tin oxide calcium halophosphate activated by antimony andmanganese iron oxide black powder, polyvinyl alcohol
It is added in kneading machine and is kneaded, melting temperature is 155 DEG C, and mixing time is 55 minutes, obtains epoxy glue B；
Epoxy glue B obtained, levelling agent, toughener, filler are sequentially sent in double screw extruder by step 4, adjust PH
It is worth 8.0, double screw extruder is divided into four operating temperatures, and the first operating temperature is 124 DEG C, and the second operating temperature is 130 DEG C,
Third operating temperature is 140 DEG C, and the 4th operating temperature is 150 DEG C, and extruding pelletization is to get fire resistant environment-friendly cable of the invention
Material.
Embodiment 2.
A kind of fire resistant environment-friendly CABLE MATERIALS of the present embodiment, includes the raw material of following parts by weight：
42 parts of Corvic, 40 parts of polyethylene terephthalate, 30 parts of dibutyl maleate, 22 parts of calcium stearate,
18 parts of the black powder of 22 parts of superfine tin oxide antimony, ferromanganese, 14 parts of polyvinyl alcohol, 12 parts of levelling agent, 6-10 parts of toughener, 3 parts of filler.
The levelling agent of the present embodiment is alkyl-modified organosiloxane.
The toughener of the present embodiment is acrylonitrile-butadiene-styrene copolymer, haloflex according to weight ratio 5:2
The mixture of composition.
The filler of the present embodiment is carborundum powder, phosphatization silica flour, kaolin powder according to weight ratio 11:9:The mixing of 3 compositions
Object.
A kind of preparation method of fire resistant environment-friendly CABLE MATERIALS of the present embodiment, includes the following steps：
Step 1 weighs prepare each component raw material as required；
Corvic, polyethylene terephthalate, dibutyl maleate are added in homogenizer step 2,
Rotating speed is 750r/min, stirs 55min, and mixture A is made；
Step 3, by mixture A made from step 2, calcium stearate, superfine tin oxide calcium halophosphate activated by antimony andmanganese iron oxide black powder, polyvinyl alcohol
It is added in kneading machine and is kneaded, melting temperature is 165 DEG C, and mixing time is 65 minutes, obtains epoxy glue B；
Epoxy glue B obtained, levelling agent, toughener, filler are sequentially sent in double screw extruder by step 4, adjust PH
It is worth 9.0, double screw extruder is divided into four operating temperatures, and the first operating temperature is 130 DEG C, and the second operating temperature is 140 DEG C,
Third operating temperature is 150 DEG C, and the 4th operating temperature is 160 DEG C, and extruding pelletization is to get fire resistant environment-friendly cable of the invention
Material.
Embodiment 3.
A kind of fire resistant environment-friendly CABLE MATERIALS of the present embodiment, includes the raw material of following parts by weight：
39 parts of Corvic, 36 parts of polyethylene terephthalate, 28 parts of dibutyl maleate, 19 parts of calcium stearate,
16 parts of the black powder of 19 parts of superfine tin oxide antimony, ferromanganese, 12 parts of polyvinyl alcohol, 10 parts of levelling agent, 8 parts of toughener, 2 parts of filler.
The levelling agent of the present embodiment is alkyl-modified organosiloxane.
The toughener of the present embodiment is acrylonitrile-butadiene-styrene copolymer, haloflex according to weight ratio 5:2
The mixture of composition.
The filler of the present embodiment is carborundum powder, phosphatization silica flour, kaolin powder according to weight ratio 10:7:The mixing of 3 compositions
Object.
A kind of preparation method of fire resistant environment-friendly CABLE MATERIALS of the present embodiment, includes the following steps：
Step 1 weighs prepare each component raw material as required；
Corvic, polyethylene terephthalate, dibutyl maleate are added in homogenizer step 2,
Rotating speed is 700r/min, stirs 50min, and mixture A is made；
Step 3, by mixture A made from step 2, calcium stearate, superfine tin oxide calcium halophosphate activated by antimony andmanganese iron oxide black powder, polyvinyl alcohol
It is added in kneading machine and is kneaded, melting temperature is 160 DEG C, and mixing time is 60 minutes, obtains epoxy glue B；
Epoxy glue B obtained, levelling agent, toughener, filler are sequentially sent in double screw extruder by step 4, adjust PH
It is worth 8.5, double screw extruder is divided into four operating temperatures, and the first operating temperature is 127 DEG C, and the second operating temperature is 135 DEG C,
Third operating temperature is 145 DEG C, and the 4th operating temperature is 155 DEG C, and extruding pelletization is to get fire resistant environment-friendly cable of the invention
Material.
It draws a conclusion by many experiments and performance test, in embodiment 1-3, a kind of fire resistant environment-friendly of the invention
CABLE MATERIALS, the CABLE MATERIALS not only can high temperature resistant, while pull resistance is strong, reasonable raw material proportioning, has higher use value and good
Good application prospect.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (8)
1. a kind of fire resistant environment-friendly CABLE MATERIALS, which is characterized in that include the raw material of following parts by weight：
36-42 parts of Corvic, 32-40 parts of polyethylene terephthalate, 26-30 parts of dibutyl maleate, tristearin
Sour calcium 16-22 parts, 16-22 parts of superfine tin oxide antimony, ferromanganese is powder 14-18 parts black, 10-14 parts of polyvinyl alcohol, 8-12 parts of levelling agent,
6-10 parts of toughener, 1-3 parts of filler.
2. a kind of fire resistant environment-friendly CABLE MATERIALS according to claim 1, which is characterized in that the fire resistant environment-friendly electricity
Cable material includes the raw material of following parts by weight：
39 parts of Corvic, 36 parts of polyethylene terephthalate, 28 parts of dibutyl maleate, 19 parts of calcium stearate,
16 parts of the black powder of 19 parts of superfine tin oxide antimony, ferromanganese, 12 parts of polyvinyl alcohol, 10 parts of levelling agent, 8 parts of toughener, 2 parts of filler.
3. a kind of fire resistant environment-friendly CABLE MATERIALS according to claim 1 or 2, which is characterized in that the levelling agent is alkane
Base azo polyether polyeste.
4. a kind of fire resistant environment-friendly CABLE MATERIALS according to claim 1, which is characterized in that the toughener is propylene
Nitrile-butadiene-styrene copolymer, haloflex are according to weight ratio 5:The mixture of 2 compositions.
5. a kind of fire resistant environment-friendly CABLE MATERIALS according to claim 1, which is characterized in that the filler is silicon carbide
Powder, phosphatization silica flour, kaolin powder are according to weight ratio（9-11）:（5-9）:The mixture of 3 compositions.
6. a kind of fire resistant environment-friendly CABLE MATERIALS according to claim 5, which is characterized in that the filler is silicon carbide
Powder, phosphatization silica flour, kaolin powder are according to weight ratio 10:7:The mixture of 3 compositions.
7. a kind of method preparing fire resistant environment-friendly CABLE MATERIALS as claimed in any one of claims 1 to 6, which is characterized in that packet
Include following steps：
Step 1 weighs prepare each component raw material as required；
Corvic, polyethylene terephthalate, dibutyl maleate are added in homogenizer step 2,
Rotating speed is 650-750r/min, stirs 45-55min, and mixture A is made；
Step 3, by mixture A made from step 2, calcium stearate, superfine tin oxide calcium halophosphate activated by antimony andmanganese iron oxide black powder, polyvinyl alcohol
It is added in kneading machine and is kneaded, melting temperature is 155-165 DEG C, and mixing time is 55-65 minutes, obtains epoxy glue B；
Epoxy glue B obtained, levelling agent, toughener, filler are sequentially sent in double screw extruder by step 4, adjust PH
It is worth 8.0-9.0, double screw extruder is divided into four operating temperatures, and the first operating temperature is 124-130 DEG C, the second operating temperature
It it is 130-140 DEG C, third operating temperature is 140-150 DEG C, and the 4th operating temperature is 150-160 DEG C, and extruding pelletization is to get this hair
Bright fire resistant environment-friendly CABLE MATERIALS.
8. a kind of preparation method of fire resistant environment-friendly CABLE MATERIALS according to claim 7, which is characterized in that the preparation
Step is：
Step 1 weighs prepare each component raw material as required；
Corvic, polyethylene terephthalate, dibutyl maleate are added in homogenizer step 2,
Rotating speed is 700r/min, stirs 50min, and mixture A is made；
Step 3, by mixture A made from step 2, calcium stearate, superfine tin oxide calcium halophosphate activated by antimony andmanganese iron oxide black powder, polyvinyl alcohol
It is added in kneading machine and is kneaded, melting temperature is 160 DEG C, and mixing time is 60 minutes, obtains epoxy glue B；
Epoxy glue B obtained, levelling agent, toughener, filler are sequentially sent in double screw extruder by step 4, adjust PH
It is worth 8.5, double screw extruder is divided into four operating temperatures, and the first operating temperature is 127 DEG C, and the second operating temperature is 135 DEG C,
Third operating temperature is 145 DEG C, and the 4th operating temperature is 155 DEG C, and extruding pelletization is to get fire resistant environment-friendly cable of the invention
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281768.9A CN108456380A (en) | 2018-04-02 | 2018-04-02 | A kind of fire resistant environment-friendly CABLE MATERIALS and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281768.9A CN108456380A (en) | 2018-04-02 | 2018-04-02 | A kind of fire resistant environment-friendly CABLE MATERIALS and preparation method thereof |
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| CN108456380A true CN108456380A (en) | 2018-08-28 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810281768.9A Withdrawn CN108456380A (en) | 2018-04-02 | 2018-04-02 | A kind of fire resistant environment-friendly CABLE MATERIALS and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109749303A (en) * | 2019-01-02 | 2019-05-14 | 安徽新安线缆材料有限公司 | A kind of environmental protection and safety type fireproof cable material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104761856A (en) * | 2015-04-16 | 2015-07-08 | 浙江乔兴建设集团湖州智能科技有限公司 | Novel environment-friendly high-temperature-resistant polyvinyl chloride cable material and preparation method thereof |
| CN105504593A (en) * | 2016-01-05 | 2016-04-20 | 惠州乐庭电子线缆有限公司 | Temperature-resistant oil-resistant polyvinyl chloride elastomer cable material and preparing method thereof |
-
2018
- 2018-04-02 CN CN201810281768.9A patent/CN108456380A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104761856A (en) * | 2015-04-16 | 2015-07-08 | 浙江乔兴建设集团湖州智能科技有限公司 | Novel environment-friendly high-temperature-resistant polyvinyl chloride cable material and preparation method thereof |
| CN105504593A (en) * | 2016-01-05 | 2016-04-20 | 惠州乐庭电子线缆有限公司 | Temperature-resistant oil-resistant polyvinyl chloride elastomer cable material and preparing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109749303A (en) * | 2019-01-02 | 2019-05-14 | 安徽新安线缆材料有限公司 | A kind of environmental protection and safety type fireproof cable material |
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