CN110204820A - Kynoar-composite polyethylene material and preparation method thereof, insulator sheath - Google Patents
Kynoar-composite polyethylene material and preparation method thereof, insulator sheath Download PDFInfo
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
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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
- C08L27/12—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 fluorine atoms
- C08L27/16—Homopolymers or copolymers or vinylidene fluoride
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- 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
- H01B3/441—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 alkenes
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- 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
- H01B3/445—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 from vinylfluorides or other fluoroethylenic compounds
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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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention belongs to Material Fields, and in particular to fire-retardant high pressure resistant Kynoar-composite polyethylene material of one kind and preparation method thereof, insulator sheath.It includes: Kynoar that wherein Kynoar-composite polyethylene material forms by weight: 10-50 parts；Polyethylene: 10-50 parts；Compatilizer: 1-10 parts；Expanding material: 1-10 parts；Fire retardant: 5-35 parts；Lubricant: 0.1-1 parts；And antioxidant: 0.5-3 parts.Kynoar-composite polyethylene material of the invention has preferable damp proof sudden strain of a muscle, antifouling work ability, the arc resistance and anti-flammability for improving composite material by adding fire retardant in composition of raw materials.In addition, the raw material in composite material is nontoxic, generated in process of production without exhaust gas, waste material, waste water, no pollution to the environment.
Description
Technical field
The present invention relates to Material Fields, and in particular to a kind of Kynoar-composite polyethylene material and preparation method thereof,
Insulator sheath.
Background technique
Composite insulator is started from the world in the 1950s, having the history in more than 40 years so far, and China's silicon rubber is exhausted
Edge production run has the history in more than ten years, has thousands of domestic composite high voltage insulator transporting in the power system
In the trade, with China's UHV transmission project implementation, the West-to-East Electricity Transmission Project is further spread out, the need of composite high voltage insulator
The amount of asking will be significantly increased.
Composite insulator is generally made of glass fibre and epoxy resin leading-drawing rod, silicon rubber umbrella skirt, fitting three parts.Its
Middle silicon rubber umbrella skirt is the external insulation part of composite insulator, and effect is that composite insulator is made to have sufficiently high damp proof sudden strain of a muscle and dirt
Sudden strain of a muscle ability, while protection plug is also played from the invasion of outside atmosphere.In addition, sheath exposes in atmosphere outdoors all the year round, warp
It by solarization, drenches with rain, the various bad weather conditions such as heat, severe cold, bears nature (flying dust, saline and alkaline and seawater salt fog) pollution and work
Industry pollution may meet with spark discharge and the ablation of electric arc in the case where filthy moist.
Existing silicone rubber jacket within the regular hour mainly by leading under certain high temperature, the effect of necessary pressure
It crosses injection molding, be sulfided into cure silicone rubber in mould, have the following problems: being led in forming process by the fluctuation of temperature, pressure
Cause silicon rubber vulcanization incomplete；Easily the coupling agent on plug is made to crosslink reaction since processing temperature is excessively high, cause sheath with
Plug integrally cannot be reliably bonded；Silicon rubber injection molding cycle is longer, and production efficiency is relatively low；The environmental friendly property of silicon rubber vulcanization
It is poor.
Summary of the invention
The object of the present invention is to provide a kind of fire-retardant high pressure resistant Kynoar-composite polyethylene material and its preparation sides
Method, insulator sheath.
In order to solve the above-mentioned technical problems, the present invention provides a kind of Kynoar-composite polyethylene materials, by weight
Part composition includes: Kynoar: 10-50 parts；Polyethylene: 10-50 parts；Compatilizer: 1-10 parts；Expanding material: 1-10 parts；It is fire-retardant
Agent: 5-35 parts；Lubricant: 0.1-1 parts；And antioxidant: 0.5-3 parts.
Further, under 230 DEG C, 2.16Kg test condition, the melt flow rate (MFR) of the Kynoar is 10-15g/
10min。
Further, the polyethylene include linear low density polyethylene, low density polyethylene (LDPE) it is one or two kinds of；?
190 DEG C, under 2.16Kg test condition, the melt flow rate (MFR) of the polyethylene is 2-3g/10min.
Further, the expanding material includes one or more of EVA, EAA or EMA；At 190 DEG C, 2.16Kg test-strips
Under part, the melt flow rate (MFR) of the expanding material is 2-3g/10min.
Further, the compatilizer includes one or more of PE-g-GMA, POE-g-MAH or EMA-g-GMA；?
190 DEG C, under 2.16Kg test condition, the melt flow rate (MFR) of the compatilizer is less than 2.0g/10min.
Further, the fire retardant is phosphorus, nitrogen compounding halogen-free flame retardants, the i.e. weight of phosphonium flame retardant and nitrogenous carbon forming agent
Than for 3-4:1.
Further, phosphonium flame retardant includes one or more of hypophosphites, alkyl hypophosphites or PX-200, and is contained
The partial size of phosphorus fire retardant is less than 3 microns；And nitrogenous carbon forming agent includes triazine macromolecular carbon forming agent.
Further, the lubricant includes one or more of silicone masterbatch, EBS, polyethylene wax.
Another aspect, the present invention also provides a kind of preparation methods of Kynoar-composite polyethylene material, comprising:
Major ingredient and auxiliary material are separately added into double screw extruder, pass through shearing, melting and mixing under screw acting；Tie rod；And it cuts
At particulate material.
On the other hand, the present invention also provides a kind of insulator sheaths, comprising: the poly- second of foregoing Kynoar-
Alkene composite material；Kynoar-the composite polyethylene material is suitable for through the injection moulding machine preforms, injection, pressure maintaining and is cooled to
Type, i.e., the described insulator sheath.
The invention has the advantages that Kynoar-composite polyethylene material of the invention have it is preferable it is damp proof dodge,
Antifouling work ability, the arc resistance and anti-flammability for improving composite material by adding fire retardant in composition of raw materials.In addition, multiple
Raw material in condensation material is nontoxic, generates in process of production without exhaust gas, waste material, waste water, no pollution to the environment.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is Kynoar-composite polyethylene material process flow chart of the invention.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
Embodiment 1
As shown in Figure 1, the present embodiment 1 provides a kind of Kynoar-composite polyethylene material, composition is wrapped by weight
It includes: Kynoar: 10-50 parts；Polyethylene: 10-50 parts；Compatilizer: 1-10 parts；Expanding material: 1-10 parts；Fire retardant: 5-35
Part；Lubricant: 0.1-1 parts；And antioxidant: 0.5-3 parts.Preferably, the Kynoar is 15-25 parts.
Melt flow rate (MFR) (MFR) is that under certain temperature and pressure, resin melt is by standard capillary, unit
g/10min.Melt flow rate (MFR) is the important reference of selection a plastic processing material and the trade mark, can make the former material selected
Material better adapts to the requirement of processing technology, and product is made to increase in terms of molding reliability and quality.Therefore in plastics
It, can be with the structural factor of Study Polymer Melts, for measuring the flowing of plastic melt by measuring the flow rate of plastics in processing
Property.
Optionally, under 230 DEG C, 2.16Kg test condition, the melt flow rate (MFR) of the Kynoar (PVDF) is
10-15g/10min provides weatherability, barotolerance, arc resistance as matrix resin.
Optionally, the polyethylene (PE) includes but is not limited to linear low density polyethylene, one kind of low density polyethylene (LDPE)
Or two kinds；Under 190 DEG C, 2.16Kg test condition, the melt flow rate (MFR) of the polyethylene is 2-3g/10min, as base
Body resin provides weatherability, toughness, barotolerance, arc resistance.
Optionally, the expanding material includes EVA (ethylene-vinyl acetate copolymer), EAA (ethylene-acrylic acid copolymer)
Or one or more of EMA (ethylene-methyl acrylate copolymer)；Under 190 DEG C, 2.16Kg test condition, the increase-volume
The melt flow rate (MFR) of agent is 2-3g/10min, predominantly compatilizer is further promoted to mix with major ingredient more evenly, guarantees to produce
Product are not stratified.
Optionally, the compatilizer includes but is not limited to PE-g-GMA (polycthylene grafted methyl propenoic acid glycidyl
Ester), (ethylene-methyl acrylate is grafted methyl-prop by POE-g-MAH (polyolefin elastomer grafted maleic anhydride) or EMA-g-GMA
One or more of olefin(e) acid ethylene oxidic ester)；Under 190 DEG C, 2.16Kg test condition, the melt flows speed of the compatilizer
Rate is less than 2.0g/10min, can effectively solve Kynoar and ask with the layering of product caused by incomplete mixing when PE Processing
Topic.
Optionally, the fire retardant is phosphorus, nitrogen compounding halogen-free flame retardants, the i.e. weight of phosphonium flame retardant and nitrogenous carbon forming agent
Than for 3-4:1.Wherein, phosphonium flame retardant includes that (organophosphorus compounds are fire-retardant by hypophosphites, alkyl hypophosphites or PX-200
One or more of agent, i.e. 1,3- phenylene phosphoric acid four (2,6- 3,5-dimethylphenyl) ester), and the partial size of phosphonium flame retardant is less than
3 microns；And nitrogenous carbon forming agent includes triazine macromolecular carbon forming agent.Since matrix resin polyethylene is not fire-retardant, and insulator produces
When product requirement flame retardant rating is FV0 grades, only improve the anti-flammability of composite material by addition fire retardant.Optionally, the profit
Lubrication prescription includes but is not limited to one or more of silicone masterbatch, EBS (ethylenebisstearamide), polyethylene wax, effect
For the frictional force between equipment and polymer can be reduced when first is that processing, secondly fire retardant dispersion can be made more evenly.
Optionally, the antioxidant can be divided into main and auxiliary antioxidant according to function and effect；Wherein primary antioxidant is not for example but
It is limited to Hinered phenols antioxidant, auxiliary anti-oxidant is such as, but not limited to phosphite ester antioxidant.Polymer can be improved in antioxidant
Weatherability, improve the anti-aging property of polymer.
Optionally, the raw material in the Kynoar-composite polyethylene material of the present embodiment 1 can by existing material into
Row proportion, as shown in table 1.Kynoar-the composite polyethylene material of the present embodiment 1 can be detected by associated test standards
Performance, testing standard are as shown in table 2.
The specification of the existing material of table 1
In table 1, expanding material is polyvinyl acetate；Phosphorus, nitrogen and synergist compounding (phosphorus flame retardant: triazines carbon forming agent:
Synergist=4:1:0.3).
2 performance detection standard of table
| Detection project | Examination criteria |
| Stretch breaking strength/break elongation | GB/T528 |
| Tearing toughness | GB/T528 |
| Flammability test | GB/T10707 |
| Volume resistivity | GB/T1692 |
Embodiment 2
See Fig. 1, on the basis of embodiment 1, the present embodiment 2 provides a kind of Kynoar-composite polyethylene material
Preparation method, include the following steps: step S1, major ingredient and auxiliary material be separately added into double screw extruder, under screw acting
Pass through shearing, melting and mixing；Step S2, mouth mold tie rod, i.e., pull into bar by mouth mold；And step S3, it is cut into particle
Material.
Optionally, it includes: Kynoar that the major ingredient forms by weight: 10-50 parts；Polyethylene: 10-50 parts；Phase
Appearance agent: 1-10 parts；Expanding material: 1-10 parts.
Optionally, it includes: fire retardant that the auxiliary material forms by weight: 5-35 parts；Lubricant: 0.1-1 parts；Antioxidant:
0.5-3 parts.
Specific preparation process is as follows: firstly, by 10-50 parts of Kynoar, 10-50 parts of polyethylene, 1-10 parts of compatilizer,
Expanding material: 1-10 parts of addition bipyramid stainless steel mixing machines are uniformly mixed, and form major ingredient；By 5-35 parts of fire retardant, lubricant 0.1-1
0.5-3 parts of part, antioxidant addition bipyramid stainless steel mixing machines are uniformly mixed, and form auxiliary material.Secondly, major ingredient is sent into main hopper warp
Enter double screw extruder after weight-loss metering, auxiliary material is sent into auxiliary material bucket and enters twin-screw extrusion through feeding on rear side of weight-loss metering
Machine.Major ingredient, auxiliary material, by shearing, melting and mixing, then pass through mouth mold tie rod, are cut into particle, formed poly- under screw acting
Vinylidene-composite polyethylene material.Wherein twin-screw side feed material is preferably on the third cylinder of double screw extruder, and double
The draw ratio of screw rod be 40-52, preferably 48 and double screw extruder temperature setting be 180-210 DEG C, be chosen as 190 DEG C,
200℃。
About Kynoar-composite polyethylene material constituent content and specific implementation process referring to the phase of embodiment 1
It closes and discusses, details are not described herein again.
Embodiment 3
On the basis of embodiment 1 and embodiment 2, the present embodiment 3 provides a kind of insulator sheath, comprising: such as preceding institute
Kynoar-the composite polyethylene material stated；Kynoar-the composite polyethylene material is suitable for pre- by injection molding machine
Modeling, injection, pressure maintaining and cooling and shaping, i.e., the described insulator sheath.
Optionally, the temperature setting of the injection molding machine is 175-220 DEG C, is chosen as 190 DEG C, 200 DEG C, 210 DEG C.
About Kynoar-composite polyethylene material constituent content and specific implementation process referring to Examples 1 and 2
Correlation is discussed, and details are not described herein again.
Embodiment 4
20 parts of PVDF, 35 parts of PE, 8 parts of polyvinyl acetate, 5 parts of EMA grafted material are placed in bipyramid stainless steel mixing machine
Middle mixing 10 minutes；It is stainless that 30 parts of fire retardant, 0.5 part of silicone masterbatch, 1 part of primary antioxidant, 0.5 part of auxiliary anti-oxidant are placed in bipyramid
Steel mixing machine mixes 10 minutes, is separately added into the main hopper of twin-screw, side feed hopper after weight-loss metering through screw rod shearing, melting
And tie rod, pelletizing after mixing, form the Kynoar-composite polyethylene material.Wherein double screw extruder draw ratio is
48:1, diameter 35.6mm, screw speed are 400 revs/min, and side feed material frequency is 40Hz.The temperature of double screw extruder can be with
It is set as 175 DEG C, 190 DEG C, 210 DEG C, 210 DEG C, 215 DEG C, 215 DEG C, 215 DEG C, 215 DEG C, 210 DEG C, 210 DEG C, 210 DEG C.
Embodiment 5
Adjusting PVDF is 15 parts, and PE is 40 parts, and other conditions are constant, prepare polyvinylidene fluoride by the preparation method of embodiment 4
Alkene-composite polyethylene material.
Embodiment 6
Adjusting PVDF is 40 parts, and PE is 20 parts, and other conditions are constant, prepare polyvinylidene fluoride by the preparation method of embodiment 4
Alkene-composite polyethylene material.
Embodiment 7
10 parts of PVDF, 50 parts of low density polyethylene (LDPE), 10 parts of EAA, 10 parts of POE-g-MAH are placed in the stainless steel reinforced concrete of bipyramid
It is mixed 10 minutes in conjunction machine；By 5 parts of fire retardant (hypophosphites: triazine macromolecular carbon forming agent=3:1), 0.1 part of EBS, resistance phenols
0.3 part of antioxidant, 0.2 part of phosphite ester antioxidant be placed in bipyramid stainless steel mixing machine and mix 10 minutes, be separately added into double spiral shells
Main hopper, side feed the hopper tie rod, pelletizing after screw rod shearing, melting and mixing after weight-loss metering of bar, form described poly- inclined
Vinyl fluoride-composite polyethylene material.Wherein double screw extruder draw ratio is 40:1, diameter 35.6mm, screw speed 400
Rev/min, side feed material frequency is 40Hz.The temperature of double screw extruder can be set to 175 DEG C, 190 DEG C, 210 DEG C, 210 DEG C,
215℃、215℃、215℃、215℃、210℃、210℃、210℃。
Embodiment 8
50 parts of PVDF, 10 parts of low density polyethylene (LDPE), 1 part of EAA, 1 part of POE-g-MAH are placed in bipyramid stainless steel to mix
It is mixed 10 minutes in machine；35 parts of fire retardant (hypophosphites: triazine macromolecular carbon forming agent=4:1), 1 part of EBS, resistance phenols is anti-
2 parts of oxygen agent, 1 part of phosphite ester antioxidant be placed in bipyramid stainless steel mixing machine mix 10 minutes, be separately added into the master of twin-screw
Hopper, side feed hopper tie rod, pelletizing after screw rod shearing, melting and mixing after weight-loss metering, form the Kynoar-
Composite polyethylene material.Wherein double screw extruder draw ratio is 40:1, and diameter 35.6mm, screw speed is 400 revs/min,
Side feed material frequency is 40Hz.The temperature of double screw extruder can be set to 175 DEG C, 190 DEG C, 210 DEG C, 210 DEG C, 215 DEG C,
215℃、215℃、215℃、210℃、210℃、210℃。
Embodiment 9
Fire-retardant high pressure resistant Kynoar-composite polyethylene material of the application and preparation method thereof, insulator sheath packet
The preparation method for having contained numerous embodiments only enumerates first five kind embodiment of embodiment 4-8 due to length, remaining
Each component content is as shown in table 3 in embodiment, and specific implementation process is discussed referring to the correlation in embodiment 4, herein no longer
It repeats.
Each component and dosage in 3 composite material of table
Each component unit is parts by weight in table 3.
Embodiment 10
In the present embodiment 10, by the fire-retardant high pressure resistant poly- second of Kynoar-of the embodiment preparation in embodiment 4-6
Alkene composite material is by examination criteria detection performance described in table 2, and the results are shown in Table 4.As can be seen that other components are constant
In the case of, the content of PVDF and PE proportion determines the toughness and intensity of composite material, i.e., the content of PVDF is lower, content of PE
Higher, the elongation rate of tensile failure of fire-retardant high pressure resistant Kynoar-composite polyethylene material is bigger, and toughness is better, but breaks strong
It spends lower；Conversely, the content of PVDF is higher, the content of PE is lower, fire-retardant high pressure resistant Kynoar-composite polyethylene material
Elongation rate of tensile failure is smaller, and plasticity is poorer, but stretch breaking strength is higher.Therefore, according to the application places of composite material and can make
With requiring, the raw material composition of different proportion is matched, to change Kynoar-composite polyethylene material performance.
The performance of 4 composite material of table
In conclusion this fire-retardant high pressure resistant Kynoar-composite polyethylene material and preparation method thereof, insulator sheath
By formula design, raw material selection and the technological temperature for squeezing out tie rod, thermoplastic macromolecule material alloy-PVDF/PE is made
Alloy, the ability with good damp proof sudden strain of a muscle, antifouling work；Composite material is improved by adding fire retardant in composition of raw materials
Arc resistance and anti-flammability；Selected raw material is poisonous material, is generated in process of production without exhaust gas, waste material, waste water, to environment
It is pollution-free；Insulator sheath substantially reduces molding cycle without vulcanizing link by injection molding, process.Therefore, originally
Fire-retardant high pressure resistant Kynoar-composite polyethylene material has simple continuous, efficient, stable product quality of production procedure etc. excellent
Point.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (10)
1. a kind of Kynoar-composite polyethylene material, which is characterized in that composition includes: by weight
Kynoar: 10-50 parts；
Polyethylene: 10-50 parts；
Compatilizer: 1-10 parts；
Expanding material: 1-10 parts；
Fire retardant: 5-35 parts；
Lubricant: 0.1-1 parts；And
Antioxidant: 0.5-3 parts.
2. composite material according to claim 1, which is characterized in that
Under 230 DEG C, 2.16Kg test condition, the melt flow rate (MFR) of the Kynoar is 10-15g/10min.
3. composite material according to claim 1, which is characterized in that
The polyethylene include linear low density polyethylene, low density polyethylene (LDPE) it is one or two kinds of；
Under 190 DEG C, 2.16Kg test condition, the melt flow rate (MFR) of the polyethylene is 2-3g/10min.
4. composite material according to claim 1, which is characterized in that
The expanding material includes one or more of EVA, EAA or EMA；
Under 190 DEG C, 2.16Kg test condition, the melt flow rate (MFR) of the expanding material is 2-3g/10min.
5. composite material according to claim 1, which is characterized in that
The compatilizer includes one or more of PE-g-GMA, POE-g-MAH or EMA-g-GMA；
Under 190 DEG C, 2.16Kg test condition, the melt flow rate (MFR) of the compatilizer is less than 2.0g/10min.
6. composite material according to claim 1, which is characterized in that
The fire retardant is phosphorus, nitrogen compounds halogen-free flame retardants, i.e.,
The weight ratio of phosphonium flame retardant and nitrogenous carbon forming agent is 3-4:1.
7. composite material according to claim 6, which is characterized in that
Phosphonium flame retardant includes one or more of hypophosphites, alkyl hypophosphites or PX-200, and phosphonium flame retardant
Partial size is less than 3 microns；And
Nitrogenous carbon forming agent includes triazine macromolecular carbon forming agent.
8. composite material according to claim 1, which is characterized in that
The lubricant includes one or more of silicone masterbatch, EBS, polyethylene wax.
9. a kind of preparation method of Kynoar-composite polyethylene material characterized by comprising
Major ingredient and auxiliary material are separately added into double screw extruder, pass through shearing, melting and mixing under screw acting；
Tie rod；And
It is cut into particulate material.
10. a kind of insulator sheath characterized by comprising
Kynoar-composite polyethylene material as described in claim 1；
Kynoar-the composite polyethylene material is suitable for through the injection moulding machine preforms, injection, pressure maintaining and cooling and shaping, i.e. institute
State insulator sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910629059.XA CN110204820A (en) | 2019-07-12 | 2019-07-12 | Kynoar-composite polyethylene material and preparation method thereof, insulator sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910629059.XA CN110204820A (en) | 2019-07-12 | 2019-07-12 | Kynoar-composite polyethylene material and preparation method thereof, insulator sheath |
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| CN111234346A (en) * | 2020-02-18 | 2020-06-05 | 东莞市高能高分子材料有限公司 | PE composite material and preparation method thereof |
| CN112143091A (en) * | 2020-10-20 | 2020-12-29 | 刘佩 | High-molecular explosion-proof and corrosion-proof material and preparation method thereof |
| CN115477817A (en) * | 2022-11-02 | 2022-12-16 | 黄河三角洲京博化工研究院有限公司 | Polyketone modified polyvinylidene fluoride composite material and preparation method thereof |
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