CN109473219A - Super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-tension cable and preparation method - Google Patents
Super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-tension cable and preparation method Download PDFInfo
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- CN109473219A CN109473219A CN201811018573.1A CN201811018573A CN109473219A CN 109473219 A CN109473219 A CN 109473219A CN 201811018573 A CN201811018573 A CN 201811018573A CN 109473219 A CN109473219 A CN 109473219A
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- polyvinyl chloride
- insulating layer
- cable
- environmental protection
- inner conductor
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/08—Several wires or the like stranded in the form of a rope
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0258—Disposition of insulation comprising one or more longitudinal lapped layers of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/24—Devices affording localised protection against mechanical force or pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- Insulated Conductors (AREA)
Abstract
The present invention provides the super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-tension cable of one kind and preparation method, the electric wire is successively made of inner conductor and insulating layer, and the insulating layer is that shore hardness 65A exempts from radiation crosslinking modified polyvinyl chloride-TPE copolymer；Insulating layer is adhered tightly to outside inner conductor by extruder mixing extrusion, insulating layer, the electric wire after extrusioning shaping, is removed electron accelerator from and is carried out cross-linking radiation to it, wire external diameter is 2.40~19.70mm；Electric wire pliability of the invention is good, resistance to circumnutate, high temperature resistant, high pressure resistant, flame-proof environmental protection, low in cost, simple process, is entirely capable of substitution cross-linking radiation similar product.
Description
Technical field
The present invention relates to wire and cable fields, and in particular to a kind of energy iterative cycles bending, high temperature resistant is anti-to prolong combustion, resistance to low
Warm rolling is around the super soft heat resist modification polyvinyl chloride flame-proof environmental protection charging pile cable of one kind and preparation method with impact.
Background technique
As the economic sustained and rapid development in China and Development of China's Urbanization accelerate to promote, development energy conservation is drop with new-energy automobile
Low automotive fuel wastage alleviates fuel oil disparities between supply and demand, reduces exhaust emissions, improves atmospheric environment, promotes automobile industry technology
Progressive and optimization and upgrading important measure.Road vehicle is mainly used for new-energy automobile car high pressure line with high-tension cable.Cause
Use environment is different with requirement, and interior high-tension cable is under the conditions of long-term work, it is necessary to meet high temperature resistant and fire-retardant etc. physical
The key indexes such as energy and electric property, meanwhile, it is limited by inner space of vehicle, interior high-voltage line must have good bending volume
Around performance.It is easily installed laying.In order to meet these mechanical and electric properties, what we used at present is all cross-linking radiation polyene
Hydrocarbon material, this material is after extrusion molding, it is necessary to carry out irradiation processing to insulating materials, change material molecule knot by electron beam
Structure forms tridimensional network after being crosslinked insulating layer material, so as to improve its physical mechanical property, wants to reach standard
It asks.This material cost is high, complex process, and more one of irradiation, production cycle greatly prolong, while also will affect production
The timely delivery of product.
If using common PVC resin as the base-material of wire and cable, it is frequently added stabilizer, lubrication in actual use
Agent, secondary process agent, colorant, impact modifier and other additives, it is carried out it is processing modified, to meet requirement.It has
It has the disadvantage that:
Thermal stability is poor: polyvinyl chloride resin will occur slight for sensitivity when heating temperature reaches 90 DEG C or more to thermoae
Pyrolysis, after temperature is raised to 120 DEG C, decomposition reaction aggravation, be raised to 150 DEG C in temperature, continue 10min, polyvinyl chloride resin
Gradually change colour, and reaction of decomposing.Stabilizer is added on the basis of polyvinyl chloride resin, temperature classification at most can only achieve 105
DEG C, once being more than this temperature, polyvinyl chloride resin starts to thermally decompose, and aging occurs.
Combustion fumes are big: polyvinyl chloride resin can generate a large amount of smog and toxic corrosive gas when burning, and smog is fire
The primary risk factor of middle causing death, because the obstruction of sight can also be delayed the opportunity of rescue lives and properties, in order to reduce smog
Fire retardant can be generally added in injury to human body.Halogen containing polymers are widely used in conventional flame retardant, once burning, raw smoke is more
Greatly, the halogen gas such as hydrogen chloride (HCl) can be generated, therefore, other than flame retardant effect, low-smoke low-halogen is also that fire retardant is essential
Index.But cable products all on the market is made a general survey of, there are no one kind can meet flame retarding efficiency and low-smoke low-halogen simultaneously
Requirement.
Therefore, develop a kind of cheap, the processing is simple, has excellent weather resistance, is amenable to 125 DEG C of operating temperature of height
Temperature, subzero 40 DEG C of low temperature winding and subzero 15 DEG C of low-temperature impacts, the automotive high voltage line requirement that suitable environment inside car uses, and can be full
The material and electric wire of foot its physical property and electric property, it has also become new energy car high-voltage line urgent problem to be solved at present.
Summary of the invention
At high cost for current material complex process, the disadvantage of production cycle length, the purpose of the present invention is to provide one kind
Thermal stability is good, temperature classification is high, high-low temperature resistant, and pliability is good, and flame-proof environmental protection is low in cost, and one kind of simple process is super soft
Heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-tension cable and preparation method.
To achieve the above object, technical solution of the present invention:
A kind of super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-tension cable, by inner conductor and insulating layer
It constitutes, the insulating layer is to exempt from cross-linking radiation, the soft modified polyvinyl chloride-TPE copolymer of shore hardness 65A, soft modification
Polyvinyl chloride-TPE copolymer is made of following material and parts by weight:
1300PVC powder 42.9, high temperature plasticization agent 21.5, calcium zinc stabilizer 3.5, hollow glass micro mist 15, smoke suppressant 1.6,
Fire retardant 5, antimony oxide 2,0.5,983 rubber 8 of lubricant；
It after weighing according to the ratio, is mixed, is refined after twenty minutes at 110~120 DEG C, then be kneaded and squeezed by extruder
Out, it is adhered tightly to outside inner conductor, thickness of insulating layer is 0.30~1.50mm, and the cable after extrusioning shaping removes electronics from
Accelerator carries out cross-linking radiation to it, and the outside diameter of cable is 2.40~19.70mm.
The inner conductor is formed by 5 class conductor strand of multiply, and 5 class conductors are naked copper or tin-coated copper, the sectional area of inner conductor
For 1.5mm2~120mm2。
The inner conductor selects anaerobic naked copper or tinned conductor, and being twisted outer diameter is 1.80~16.5mm, and conductor stranding distance is to lead
Body is twisted 18~20 times of outer diameter.
The preparation method of super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-tension cable as described above,
It is made of following step:
(1) sectional area 1.5mm is selected2~120mm2Inner conductor, inner conductor is by multiply naked copper or tin plating is twisted；
(2) the material of insulating layer is taken:
1300PVC powder, high temperature plasticization agent, calcium zinc stabilizer, hollow glass micro mist, smoke suppressant, fire retardant, three oxidations two
Antimony, lubricant, 983 rubber after weighing according to the ratio, are mixed, refine after twenty minutes at 110~120 DEG C, then by 70 or
90 type double thread plastic extruder mixing extrusions, thickness of insulating layer when extrusion are 0.3~1.50mm；This insulating layer tight adhesion
Outside inner conductor；The extrusion temperature of described 70 or 90 type double thread plastic extruders controls are as follows: an area: 110~120 DEG C；2nd area:
125~135 DEG C；3rd area: 140~155 DEG C；4th area: 160~175 DEG C；Head: 180~190 DEG C；Eye mould: 170~185 DEG C；Through
The outside diameter of cable after crossing extrusioning shaping is 2.40~19.7mm；
(3) the cable after squeezing out, by admission machine lopping or sabot, direct finished product.
Compared with prior art, the beneficial effects of the present invention are:
For the present invention by common polyvinyl chloride (PVC) by being modified, composition exempts from radiation crosslinking modified polyvinyl chloride-TPE copolymerization
Object；Material hardness is shore 60A, 10A or more softer than conventional material.The pliability and resistance to bend(ing) energy of insulation are realized with this.Its
In, stabilizer is for reducing PVC with high thermal decomposition, to reduce the generation of HCl, HCl absorbent divides for absorbing
The HCl generated is solved, stabilizer cooperates with trapping HCl with HCl absorbent, and the thermal stability of product is good, temperature classification is high；Fire retardant and
Smoke suppressant collective effect improves the flame retardant property of product, reduces smokiness when burning and reduces HCl burst size, therefore, product
Flame retarding efficiency is high, and temperature resistant grade is high.Plasticizer is used to further increase the mechanical performance of product, with the increasing of plasticizer additional amount
Add, the elongation of product improves, but strength reduction, wearability reduce, and hollow glass micropearl is for reducing plasticizer to production
The influence of the intensity, elongation and wearability of product.Plasticizer and hollow glass micropearl collective effect guarantee the intensity of product, stretch
Long rate and wearability guarantee the thermoplasticity of product.The heat-proof combustion-resistant PVC cable material of low-smoke low-halogen in the present invention, fire retardant packet
Aluminium hydroxide is included, the dosage of aluminium hydroxide accounts for 40% or more of fire retardant total amount；Smoke suppressant includes ammonium octamolybdate, aluminium hydroxide.
Aluminium hydroxide itself has the function of fire-retardant, smoke elimination, filling three, can be used as fire retardant and smoke suppressant, and non-volatile, nothing simultaneously
Poison.
It uses so that after upper type, the super soft heat resist modification polyvinyl chloride flame-proof environmental protection charging pile cable uses common
Conventional conductor and stranded mode are not required to be specifically designed conductor specification and stranding distance.Pass through double-layer coextrusion by the insulating materials of mixture
Afterwards, insulating layer and conductor bonding are close.Insulation performance greatly improves, and properties of product replace irradiation processing material completely.Using
This mode reduces production process and production cost, shortens the production cycle.Greatly improve working efficiency.
Since electric wire of the present invention has good pliability and the performance that circumnutates, adhesiveness, electric wire insulation layer will not be because of bending
And bounce back, it can be convenient installation in automobile confined space.Without cross-linking radiation, so that it may which reach 125 DEG C of cable makes for a long time
Use job requirement.Compared to 125 DEG C of traditional cross-linking radiation or more polyolefin halogen-free flame-retardant cables, the product have more superior
Comprehensive performance, as processing performance is excellent, thermal stability is good, anti-flammability more preferably, have cracking wire rod extruded velocity, extrusion of wire
Surface brightness is good, alternative similar irradiation products.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of cable of the present invention；
Figure label respectively indicates, 1- inner conductor, 2- insulating layer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Referring to Fig. 1, super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-tension cable of the invention, successively
It is made of inner conductor 1 and modified polyvinyl chloride-TPE copolymer insulating layer 2.In the present embodiment, inner conductor using 1.5 squares~
It 120 squares, is twisted by naked copper or tinned wird.The preferred 5 class conductor of anaerobic naked copper of inner conductor, being twisted outer diameter is 1.8
~16.5mm, conductor stranding distance are 18~20 times of conductor strand outer diameter.The conducting wire is twisted using the lesser oxygen-free copper of resistance,
Meet GB/T3956-2008 " conductor of cable " standard requirements.
The insulating layer is modified polyvinyl chloride-TPE copolymer, is made of following material and parts by weight: 1300PVC powder
42.9, high temperature plasticization agent 21.5, calcium zinc stabilizer 3.5, hollow glass micro mist 15, smoke suppressant 1.6, fire retardant 5, antimony oxide
2,0.5,983 rubber 8 of lubricant；When preparation, after first weighing according to the ratio, it is mixed, material hardness is shore hardness 60A,
It is refined 20 minutes at 110~120 DEG C.
Embodiment 2
Referring to Fig. 1, super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-tension cable of the invention, successively
It is made of inner conductor 1 and modified polyvinyl chloride-TPE copolymer insulating layer 2.Modified polyvinyl chloride-TPE copolymer insulating materials exists
It is refined 20 minutes at 110~120 DEG C, after insulating materials mixture completely is uniform, then passes through 70 or 90 type double thread plastic extrusions
Machine mixing extrusion, the insulating layer is shore hardness 60A, with a thickness of 0.30~1.50mm；This insulating layer tight adhesion is led inside
In vitro, the extrusion temperature control an are as follows: area: 110~120 DEG C；2nd area: 125~135 DEG C；3rd area: 140~155 DEG C；4th area:
160~175 DEG C；Head: 180~190 DEG C；Eye mould: 170~185 DEG C.
Embodiment 3
Referring to Fig. 1, super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-tension cable of the invention, successively
It is made of inner conductor 1 and insulating layer 2, in the present embodiment, the insulating layer is shore hardness 60A, with a thickness of 0.30~1.50mm；
This insulating layer is adhered tightly to outside inner conductor, the extrusion temperature control an are as follows: area: 110~120 DEG C；2nd area: 125~135
℃；3rd area: 140~155 DEG C；4th area: 160~175 DEG C；Head: 180~190 DEG C；Eye mould: 170~185 DEG C.
Electric wire after extrusioning shaping, without carrying out cross-linking radiation, direct finished product clot to it by electron accelerator
Or sabot.Wire external diameter is 2.40~19.70mm.Electric wire can the long-term work under 125 DEG C of environment temperature after irradiation.Its machine
Tool performance, high temperature resistance and bending resistance fully meet requirement.
The super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-tension cable of the present invention and 125 degree of cross-linking radiations
The polyolefin cable main performance detection parameters table of comparisons:
Testing result illustrates electric wire of the invention in flexibility, insulation volume resistivity, conductor adhesive force, reversed bending
It counts, is better than existing product in high temperature heat-resistant contraction, anti-flammability, the performances such as wear-resisting that insulate.Since electric wire of the present invention is low in cost, work
Skill is simple, has good pliability, insulating layer and conductor bonding are close, and electric wire insulation layer will not be returned because of bending
Contracting, is amenable to the high temperature of 125 DEG C of operating temperatures, alternative 125 degree of irradiation products.Completely arrive at the object of the invention.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-tension cable, by inner conductor and insulating layer structure
At, it is characterised in that: the insulating layer is to exempt from cross-linking radiation, the soft modified polyvinyl chloride-TPE copolymer of shore hardness 65A.
Soft modified polyvinyl chloride-TPE copolymer is made of following material and parts by weight:
1300PVC powder 42.9, high temperature plasticization agent 21.5, calcium zinc stabilizer 3.5, hollow glass micro mist 15, smoke suppressant 1.6 are fire-retardant
Agent 5, antimony oxide 2,0.5,983 rubber 8 of lubricant；
Insulating materials is adhered tightly to outside inner conductor by extruder mixing extrusion, and thickness of insulating layer is 0.30~1.50mm, warp
Cable after crossing extrusioning shaping removes electron accelerator from and carries out cross-linking radiation to it, and the outside diameter of cable is 2.40~19.70mm.
2. the super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-voltage electricity of one kind according to claim 1
Cable, it is characterised in that: the inner conductor is formed by 5 class conductor strand of multiply, 5 class conductors be naked copper or tin-coated copper, inner conductor
Sectional area is 1.5mm2~120mm2。
3. the super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-voltage electricity of one kind according to claim 2
Cable, it is characterised in that: the inner conductor selects anaerobic naked copper or tinned conductor, and being twisted outer diameter is 1.80~16.5mm, and conductor twists
Away from 18~20 times for conductor strand outer diameter.
4. the preparation of super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-tension cable as described in claim 1
Method, which is characterized in that be made of following step:
(1) sectional area 1.5mm is selected2~120mm2Inner conductor, inner conductor is by multiply naked copper or tin plating is twisted；
(2) the material of insulating layer is taken:
1300PVC powder, high temperature plasticization agent, calcium zinc stabilizer, hollow glass micro mist, smoke suppressant, fire retardant, antimony oxide, profit
Lubrication prescription, 983 rubber after weighing according to the ratio, are mixed, refine after twenty minutes at 110~120 DEG C, then pass through 70 or 90 types
Double thread plastic extruder mixing extrusion, thickness of insulating layer when extrusion are 0.3~1.50mm；Including this insulating layer tight adhesion
Outside conductor；The extrusion temperature of described 70 or 90 type double thread plastic extruders controls are as follows: an area: 110~120 DEG C；2nd area: 125
~135 DEG C；3rd area: 140~155 DEG C；4th area: 160~175 DEG C；Head: 180~190 DEG C；Eye mould: 170~185 DEG C；By
The outside diameter of cable after extrusioning shaping is 2.40~19.7mm；
(3) the cable after squeezing out, by admission machine lopping or sabot, direct finished product needs not move through lower process reprocessing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811018573.1A CN109473219A (en) | 2018-09-03 | 2018-09-03 | Super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-tension cable and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811018573.1A CN109473219A (en) | 2018-09-03 | 2018-09-03 | Super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-tension cable and preparation method |
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| CN109473219A true CN109473219A (en) | 2019-03-15 |
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Cited By (2)
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| CN113470879A (en) * | 2021-07-16 | 2021-10-01 | 领迅电线工业(上海)有限公司 | Double-layer co-extrusion bending-resistant flame-retardant wire cable |
| WO2024146646A1 (en) * | 2023-01-06 | 2024-07-11 | 中天科技海缆股份有限公司 | Preparation method for high-voltage cable and high-voltage cable |
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| CN113470879A (en) * | 2021-07-16 | 2021-10-01 | 领迅电线工业(上海)有限公司 | Double-layer co-extrusion bending-resistant flame-retardant wire cable |
| WO2024146646A1 (en) * | 2023-01-06 | 2024-07-11 | 中天科技海缆股份有限公司 | Preparation method for high-voltage cable and high-voltage cable |
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Application publication date: 20190315 |