CN104744782A - Thin-walled locomotive line irradiation crosslinking low smoke halogen-free flame retardant polyolefin material and preparation method thereof - Google Patents
Thin-walled locomotive line irradiation crosslinking low smoke halogen-free flame retardant polyolefin material and preparation method thereof Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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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
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
Abstract
The invention discloses a thin-walled locomotive line irradiation crosslinking low smoke halogen-free flame retardant polyolefin material, the raw materials include high density polyethylene, a compatibilizer, a halogen free flame retardant agent, an antioxidant, a lubricant, a cross-linking sensitizer and a scraping resistant auxiliary; the raw materials are evenly mixed by a high-speed mixer, then extruded and granulated by a double screw extruder for preparation of an electric cable, and by irradiation crosslinking, a thin-walled locomotive line irradiation crosslinking low smoke halogen-free flame retardant polyolefin cable material can be obtained, the thin-walled locomotive line irradiation crosslinking low smoke halogen-free flame retardant polyolefin cable material still has excellent flame resistance, abrasion resistance and safety in the case of thinner wall thickness, and at the same time reduces the cost of production.
Description
Technical field
The present invention relates to a kind of electric wire macromolecular material, particularly relate to a kind of applicable flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material and preparation method thereof.
Technical background
Early stage cable for railway vehicles there is no and designs for it specially, and generally adopts 65 DEG C of temperature classification insulating material, as natural butylbenzene insulation braiding is coated with wax pattern cable.The Long-term service temperature of such cable is low, poor heat resistance.Especially under overload, easy pyrophoricity, reliability and security are unsecured.S-generation cable for railway vehicles is developed in the mid-80, and the resistance to thermal level of cable is increased to 70 DEG C, 100 DEG C of two grades.Cable not only improves structure, and substantially increases the over-all properties that can adapt to rolling stock operational conditions, as oil resistant (machine oil, diesel oil), less energy-consumption (high-insulativity) with do not prolong the characteristics such as combustion.The cable that the third generation is applicable to rolling stock can be called as (gas) time type cable entirely.It not only remains the superiority of s-generation cable for railway vehicles, has also greatly expanded the adaptive faculty of cable to temperature range, but also adopts halide-free smokeless material, thus fundamentally improves security, the reliability of cable operation.With regard to halide-free low-smoke fireproof cable, high flame retardant is obviously conflicting with the flexibility of cable; And flame retardant resistance is restriction mutually with the insulation of required height, high flexibility.In addition, the linearly swelling of insulating material or cubical expansivity must also be kept within the limits prescribed while having requirement for oil resistant solvent resistant characteristic.Everything " is attended to one thing and lose sight of another " often to traditional heat-proof combustion-resistant shaped material, unavoidable " unable to do what one wishes ".
The speed goes of modern rail transit locomotive is high, at present more than 300km/h.Locomotive runs for a long time under so high speed, and violent vibration is unavoidable, and between the cable of now its inside, the friction of some strength is also unavoidable.Wall ratio custom requirements is much thin, but still normally will run under harsh condition, and this just proposes stricter requirement to the exhausted protective material of locomotive thin-walled line.
Intellectuality, the level of automation of rail transit rolling stock improve day by day, this needs to install a large amount of all kinds of cables, but limited available space on rail transit rolling stock, so the finite thickness system of exhausted sheath to part cable, the requirement of temperature resistant grade is also more and more higher.125 DEG C of flame-retardant thin-wall wire for engines are designing for meeting such application demand, and the exhausted protective material wall thickness of thin-walled line is usually at about 0.25mm.
Summary of the invention
Object of the present invention is for problems of the prior art, propose a kind of flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material, use cable material that this polyolefine material obtains when wall thickness is thinner, still there is excellent flame retardant resistance, wear resistance and security, meanwhile, this cable is used to reduce production cost.
To achieve these goals and other objects, present invention employs following technical scheme:
A kind of flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material, comprises the material component of following weight part:
Preferably, described flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material, comprises the material component of following weight part:
Preferably, the melting index scope of described high density polyethylene(HDPE) (HDPE) is 0.8-5.0g/10min, and density is 0.95-0.96g/cm
3.
Preferably, described compatilizer is maleic anhydride stem grafting polyolefin elastomerics, and melting index is 0.2-0.8g/10min.More preferably, described maleic anhydride stem grafting polyolefin melting index is 0.3-0.6g/10min.
More preferably, described compatilizer is maleic anhydride grafted polyethylene.
Melting index described in the present invention detects under being 190 DEG C of load 2.16kg.
Preferably, described halogen-free flame retardants is magnesium hydroxide.
Preferably, described oxidation inhibitor is selected from one or more in antioxidant 1010, irgasfos 168 and anti-oxidant DLTP.
Preferably, described lubricant comprises 58# paraffin and polyethylene wax, the M of described polyethylene wax
wscope is 1000-5000.
Preferred, the mass ratio of described 58# paraffin and polyethylene wax mixing is 1:1.
Preferably, described crosslinking sensitizer is iso-cyanuric acid triallyl ester.
Preferably, described scratch resistance auxiliary agent is polydimethylsiloxane.
The invention also discloses a kind of preparation method of flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material, for being mixed through high-speed mixer by each material component, then through twin screw extruder extruding pelletization.
Preferably, the rotating speed of high-speed mixer controls to be 400 ~ 800rpm; Each district temperature of twin screw extruder is: machine barrel one district 145-155 DEG C, machine barrel two district 155-165 DEG C, machine barrel three district 170-180 DEG C, machine barrel four district 175-185 DEG C, machine barrel five district 190-200 DEG C, head and mould 195-205 DEG C.
The invention also discloses a kind of flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material, for obtaining cable by flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material described above in the present invention through Screw Extrusion and obtaining through cross-linking radiation.
Preferably, the irradiation technique of flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material of the present invention is: the optimum configurations of irradiation apparatus rumbatron is energy 2MeV, line 40mA, power 80KW, sweep length 1300mm, the concrete technology of irradiation has heat to extend control, and it is 50%-80% that heat extends the scope controlled.
Preferably, the cross-linking radiation temperature of flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material of the present invention is 120 ~ 140 DEG C.
The flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material in the present invention is used to can be 0.20-0.25mm by the wall thickness extruding the flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable sheath material of acquisition of twin screw extruder.
Not halogen-containing in the raw materials of flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material of the present invention, low cigarette refers to be measured by EN50268-2 regulated procedure, and transmittance is greater than 70%.
The present invention adopts cross-linking radiation polyolefine material to prepare flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material, and it can meet the properties requirement that standard is EN50306-2002.Compared with polyethers ether copper PEEK, cross-linking radiation polyolefine has the following advantages: (1) starting material are polyolefine, abundance, moderate; (2) can use existing polyolefinic processing units on the market, expressing technique is good; (3) with low cost, scrape resistant, oil resistant, whole system is not halogen-containing, and during burning, the amount of being fuming is low.
Flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material cable material in the present invention is applicable to being applied to track traffic cable, has the industrial value of height.
Embodiment
Below by way of specific specific examples, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification sheets can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification sheets also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Embodiment 1
The material component of the flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material in the present embodiment is as follows:
The density of the high density polyethylene described in the present embodiment is 0.954g/cm
3; The melting index of described maleated polyethylene is 0.2g/10min, and the Mw of described polyethylene wax is 1000 ~ 5000.
The preparation method of flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material is: mixed through high-speed mixer by each material component, then extrude through twin screw extruder, granulation.The rotating speed of high-speed mixer controls to be 400 ~ 800rpm; Each district temperature of twin screw extruder is: machine barrel one district 145-155 DEG C, machine barrel two district 155-165 DEG C, machine barrel three district 170-180 DEG C, machine barrel four district 175-185 DEG C, machine barrel five district 190-200 DEG C, head and mould 195-205 DEG C.
Through Screw Extrusion, cable is made again to above-mentioned flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material and prepares flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in irradiation crosslinked i.e. acquisition the present embodiment.
The Screw Extrusion technique preparing flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in the present embodiment is the same.
The irradiation technique preparing flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in the present embodiment is: the optimum configurations of irradiation apparatus rumbatron is energy 2MeV, line 40mA, power 80KW, sweep length 1300mm, the concrete technology of irradiation has heat to extend control, and it is 50%-80% that heat extends the scope controlled.The cross-linking radiation temperature of flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material of the present invention is 120 DEG C.
Embodiment 2
The material component of the flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material in the present embodiment is as follows:
The density of the high density polyethylene described in the present embodiment is 0.958g/cm
3; The melting index of described maleated polyethylene is 0.6g/10min, and the Mw of described polyethylene wax is 1000 ~ 5000.
Flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin preparation method for material is: mixed through high-speed mixer by each material component, then extrude through twin screw extruder.The rotating speed of high-speed mixer controls to be 400 ~ 800rpm; Each district temperature of twin screw extruder is: machine barrel one district 145-155 DEG C, machine barrel two district 155-165 DEG C, machine barrel three district 170-180 DEG C, machine barrel four district 175-185 DEG C, machine barrel five district 190-200 DEG C, head and mould 195-205 DEG C.
Through Screw Extrusion, cable is made again to above-mentioned flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material and prepares flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in irradiation crosslinked i.e. acquisition the present embodiment.
The Screw Extrusion technique preparing flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in the present embodiment is the same.
The irradiation technique preparing flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in the present embodiment is: the optimum configurations of irradiation apparatus rumbatron is energy 2MeV, line 40mA, power 80KW, sweep length 1300mm, the concrete technology of irradiation has heat to extend control, and it is 50%-80% that heat extends the scope controlled.The cross-linking radiation temperature of flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material of the present invention is 140 DEG C.
Embodiment 3
The material component of the flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material in the present embodiment is as follows:
The density of the high density polyethylene described in the present embodiment is 0.958g/cm
3; The melting index of described maleated polyethylene is 0.6g/10min, and the Mw of described polyethylene wax is 1000 ~ 5000.
Flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin preparation method for material: each material component is mixed through high-speed mixer, then extrudes through twin screw extruder.The rotating speed of high-speed mixer controls to be 400 ~ 800rpm; Each district temperature of twin screw extruder is: machine barrel one district 145-155 DEG C, machine barrel two district 155-165 DEG C, machine barrel three district 170-180 DEG C, machine barrel four district 175-185 DEG C, machine barrel five district 190-200 DEG C, head and mould 195-205 DEG C.
Through Screw Extrusion, cable is made again to above-mentioned flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material and prepares flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in irradiation crosslinked i.e. acquisition the present embodiment.
The Screw Extrusion technique preparing flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in the present embodiment is the same.
Through Screw Extrusion, cable is made again to above-mentioned flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material and prepares flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in irradiation crosslinked i.e. acquisition the present embodiment.
The Screw Extrusion technique preparing flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in the present embodiment is the same.
The irradiation technique preparing flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in the present embodiment is: the optimum configurations of irradiation apparatus rumbatron is energy 2MeV, line 40mA, power 80KW, sweep length 1300mm, the concrete technology of irradiation has heat to extend control, and it is 50%-80% that heat extends the scope controlled.The cross-linking radiation temperature of flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material of the present invention is 135 DEG C.
The technical parameter of the flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material prepared according to embodiment 1-3 is as shown in table 1:
Table 1
Indices as can be seen from table 1, flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material of the present invention has excellent mechanical property, ageing resistance, oil resistance, scratch resistance and resistance to elevated temperatures.
Embodiment 4
The material component of the flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material in the present embodiment is as follows:
The density of the high density polyethylene described in the present embodiment is 0.96g/cm
3; The melting index of described maleated polyethylene is 0.8g/10min.
Flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin preparation method for material: each material component is mixed through high-speed mixer, then extrudes through twin screw extruder.The rotating speed of high-speed mixer controls to be 400 ~ 800rpm; Each district temperature of twin screw extruder is: machine barrel one district 145-155 DEG C, machine barrel two district 155-165 DEG C, machine barrel three district 170-180 DEG C, machine barrel four district 175-185 DEG C, machine barrel five district 190-200 DEG C, head and mould 195-205 DEG C.
Through Screw Extrusion, cable is made again to above-mentioned flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material and prepares flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in irradiation crosslinked i.e. acquisition the present embodiment.
The Screw Extrusion technique preparing flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in the present embodiment is the same.
The irradiation technique preparing flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in the present embodiment is: the optimum configurations of irradiation apparatus rumbatron is energy 2MeV, line 40mA, power 80KW, sweep length 1300mm, the concrete technology of irradiation has heat to extend control, and it is 50%-80% that heat extends the scope controlled.The cross-linking radiation temperature of flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material of the present invention is 120 DEG C.
Embodiment 5
The material component of the flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material in the present embodiment is as follows:
The density of the high density polyethylene described in the present embodiment is 0.958g/cm
3; The melting index of described maleated polyethylene is 0.3g/10min.
Flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin preparation method for material: each material component is mixed through high-speed mixer, then extrudes through twin screw extruder.The rotating speed of high-speed mixer controls to be 400 ~ 800rpm; Each district temperature of twin screw extruder is: machine barrel one district 145-155 DEG C, machine barrel two district 155-165 DEG C, machine barrel three district 170-180 DEG C, machine barrel four district 175-185 DEG C, machine barrel five district 190-200 DEG C, head and mould 195-205 DEG C.
Through Screw Extrusion, cable is made again to above-mentioned flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material and prepares flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in irradiation crosslinked i.e. acquisition the present embodiment.
The Screw Extrusion technique preparing flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in the present embodiment is the same.
The irradiation technique preparing flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material in the present embodiment is: the optimum configurations of irradiation apparatus rumbatron is energy 2MeV, line 40mA, power 80KW, sweep length 1300mm, the concrete technology of irradiation has heat to extend control, and it is 50%-80% that heat extends the scope controlled.The cross-linking radiation temperature of flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material of the present invention is 130 DEG C.
In sum, the cable material that disclosed in the present invention, flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material is made is used effectively to overcome various shortcoming of the prior art, the standard of meeting is the properties requirement of EN50306-2002, be applicable to being applied to track traffic cable field, production technique is simple simultaneously, cost is low, thus tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. a flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material, comprises the material component of following weight part:
2. flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material according to claim 1, is characterized in that, the melting index of described high density polyethylene(HDPE) is 0.8-5.0g/10min, and density is 0.95-0.96g/cm
3.
3. flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material according to claim 1, is characterized in that, described compatilizer is maleic anhydride stem grafting polyolefin elastomerics, and melting index is 0.2-0.8g/10min.
4. flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material according to claim 1, is characterized in that, described compatilizer is maleic anhydride grafted polyethylene.
5. flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material according to claim 1, is characterized in that, described halogen-free flame retardants is magnesium hydroxide.
6. flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material according to claim 1, is characterized in that, described oxidation inhibitor be selected from antioxidant 1010, irgasfos 168 and anti-oxidant DLTP one or more.
7. flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material according to claim 1, it is characterized in that, described lubricant comprises 58# paraffin and polyethylene wax, the M of described polyethylene wax
wscope is 1000-5000.
8. flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material according to claim 1, is characterized in that, described crosslinking sensitizer is iso-cyanuric acid triallyl ester; Described scratch resistance auxiliary agent is polydimethylsiloxane.
9. the preparation method of the flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material as described in claim as arbitrary in claim 1-8, for being mixed through high-speed mixer by each material component, then extrudes through twin screw extruder, granulation.
10. a flame-retardant thin-wall wire for engine irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material, for obtaining cable by the arbitrary described flame-retardant thin-wall wire for engine irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material of claim 1-8 through Screw Extrusion and being obtained by irradiation crosslinking processes.
Priority Applications (1)
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|---|---|---|---|
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| CN105504480A (en) * | 2016-01-20 | 2016-04-20 | 常熟市中联光电新材料有限责任公司 | Oil-resistant irradiation-crosslinking low-smoke halogen-free flame-retardant polyolefin material for locomotive wires and cables |
| JP6205032B1 (en) * | 2016-08-09 | 2017-09-27 | 株式会社Ｎｕｃ | Insulating resin composition for DC power cable, resin cross-linked body, DC power cable, reinforcing insulation layer forming member for DC power cable connecting part and DC power cable connecting part |
| CN109593254A (en) * | 2018-12-17 | 2019-04-09 | 上海至正道化高分子材料股份有限公司 | Thin-walled automotive line 150 DEG C of irradiated crosslinking low-smoke and halogen-free flame retardant CABLE MATERIALSs and preparation method thereof |
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| CN105504480A (en) * | 2016-01-20 | 2016-04-20 | 常熟市中联光电新材料有限责任公司 | Oil-resistant irradiation-crosslinking low-smoke halogen-free flame-retardant polyolefin material for locomotive wires and cables |
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| CN109593254A (en) * | 2018-12-17 | 2019-04-09 | 上海至正道化高分子材料股份有限公司 | Thin-walled automotive line 150 DEG C of irradiated crosslinking low-smoke and halogen-free flame retardant CABLE MATERIALSs and preparation method thereof |
| CN114883036A (en) * | 2022-05-26 | 2022-08-09 | 苏州宝兴电线电缆有限公司 | Photovoltaic cable with high dyne value and production process thereof |
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