CN108440814A - A kind of 125 DEG C of low smoke and zero halogen cross-linking type polyolefin cable material production methods - Google Patents
A kind of 125 DEG C of low smoke and zero halogen cross-linking type polyolefin cable material production methods 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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- 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
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
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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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- 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
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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
- C08L2312/00—Crosslinking
- C08L2312/06—Crosslinking by radiation
Abstract
The invention discloses a kind of 125 DEG C of low smoke and zero halogen cross-linking type polyolefin cable material production methods, include the following steps：The preparation of S1, cable material raw material；S2, it raw-silastic continuously and ethylene propylene diene rubber raw rubber is added in mixer carries out mixing, then polyethylene and ethylene vinyl acetate copolymer are added, be kneaded, it is to be mixed uniformly up to blend glue stuff；S3, wetting agent, glass fibre, diatomite, white carbon, melamine, cyclophosphamide polymer and antimony oxide are sequentially added into blend glue stuff, continue to be kneaded, it is to be mixed uniformly to add remaining material, continue to be kneaded to obtain cable material；S4, high-energy electron beam irradiation, extrusion molding are carried out to cable material and is vulcanized up to 125 DEG C of low smoke and zero halogen cross-linking type polyolefin cable materials.Production method proposed by the present invention, easy to operate, raw material easily mixes, and fabrication cycle is short, and the cable material high temperature resistance and flame retardant property of making are good, and the low cigarette of combustion process is environmental-friendly.
Description
Technical field
The present invention relates to cable material manufacture technology field, more particularly to a kind of 125 DEG C of low smoke and zero halogen cross-linking type polyolefin cables
Expect production method.
Background technology
The insulation of electric wire and sheath are commonly called as wire cable material abbreviation cable material with material, are widely used in major neck
Domain, the main material of cable material used on the market at present is plastics, rubber or nylon, wherein the most extensive with plastic material.Only
The demand of live wire cable is wanted just to have the market of cable material, with the large area upgrading of communications facility in recent years, electric wire electricity
The demand of cable product is huge, therefore the demand of cable material is consequently increased.Current most commonly used cable material it is main at
It is divided into polyvinyl chloride, heat resistance is poor, higher using the service life that can shorten cable material in temperature, and
Contain halogen in polyvinyl chloride cable material, the burning of cable material can generate pollution to environment, be not easy to the processing of later stage cable material.
Based on this, the present invention proposes a kind of 125 DEG C of low smoke and zero halogen cross-linking type polyolefin cable material production methods.
Invention content
The purpose of the present invention is to solve disadvantages existing in the prior art, and the 125 DEG C of low smoke and zero halogens of one kind proposed
Cross-linking type polyolefin cable material production method.
A kind of 125 DEG C of low smoke and zero halogen cross-linking type polyolefin cable material production methods, include the following steps：
The preparation of S1, cable material raw material：Each raw material, 100 parts of polyethylene, ethylene-acetate are weighed according to following parts by weight
35~45 parts of vinyl ester copolymers, 5~15 parts of raw-silastic continuously, 10~20 parts of ethylene propylene diene rubber raw rubber, glass fibre 3~8
Part, 5~12 parts of diatomite, 2~6 parts of white carbon, 1~3 part of melamine, 1~3 part of cyclophosphamide polymer, antimony oxide 2
~6 parts, 0.5~1.6 part of sulphur, 0.25~0.65 part of tetramethylthiuram disulfide, N- cyclohexyls -2-[4-morpholinodithio time sulphonyl
0.25~0.65 part of amine, 1~3 part of phosphite ester, 0.3~0.7 part of light stabilizer, 10~15 parts of wetting agent are spare；
S2, it the step S1 raw-silastic continuouslies prepared and ethylene propylene diene rubber raw rubber is added in mixer carries out mixing,
The step S1 polyethylene prepared and vinyl-vinyl acetate copolymer are added again, are kneaded, it is to be mixed uniformly up to epoxy glue
Material；
S3, wetting agent, glass fibre, diatomite, white carbon, trimerization that step S1 prepares are sequentially added into blend glue stuff
Cyanamide, cyclophosphamide polymer and antimony oxide, continue to be kneaded, the remaining material one to be mixed for uniformly again preparing step S1
And be added, continue to be kneaded, obtains cable material；
S4, high-energy electron beam irradiation is carried out to cable material prepared by step S3, irradiation energy is 185~195KGy, irradiation
End transfers to extrusion molding in screw extruder, is then transferred to fluid bed and is vulcanized to get 125 DEG C of low smoke and zero halogens
Cross-linking type polyolefin cable material.
Preferably, the polyethylene, vinyl-vinyl acetate copolymer, raw-silastic continuously, ethylene propylene diene rubber raw rubber,
Glass fibre, diatomite, white carbon, melamine, cyclophosphamide polymer, antimony oxide, sulphur, tetramethyl autumn
Lan Mu, N- cyclohexyl -2-[4-morpholinodithio sulfenamide, phosphite ester, light stabilizer and wetting agent mass ratio be 100：40：
10：15：5：8：4：2：2：4：1：0.45：0.45：2：0.5：13.
Preferably, the wetting agent is polyethylene wax and stearic mixture, and polyethylene wax and stearic quality
Than being 2~4：1.
Preferably, the mass ratio of the melamine, cyclophosphamide polymer and antimony oxide is 1：0.5~1.5：1
~3.
Preferably, the irradiation energy is 190KGy.
Preferably, the screw extruder is five sections of temperature-control structures, and the temperature of first segment is 120~130 DEG C, second segment
Temperature be 160~170 DEG C, the temperature of third section is 200~210 DEG C, and the 4th section of temperature is 190~195 DEG C, the 5th section
Temperature is 185~190 DEG C.
Preferably, the vulcanization includes that primary vulcanization and second vulcanize, and the temperature of primary vulcanization is 160~168
DEG C, vulcanization time be 1~2h, the temperature of second vulcanization is 190~198 DEG C, vulcanization time is 1.5~3h.
Compared with prior art, beneficial effects of the present invention are：
1, polyethylene after being crosslinked using high energy electron beams has that disruptive field intensity is high, cut-off loss is small, insulation resistance
Greatly, light-weight advantage, then the auxiliary of vinyl-vinyl acetate copolymer, raw-silastic continuously and ethylene propylene diene rubber is coordinated to make
With the high temperature resistance that can significantly improve polyethylene, the cable material of preparation can under 125 DEG C or more of temperature condition permanent worker
The phenomenon that making, being not susceptible to season cracking；
2, cable material proposed by the present invention, formula is reasonable, does not contain halogen, environmentally friendly, and flammable low, is firing
It is almost smokeless during burning, glass fibre, the melamine of diatomite and rational proportion, cyclophosphamide polymer and three oxidations
The flame-retarding characteristic of cable material can be significantly improved by being added while two antimony, and be generated in the generation for inhibiting smog, combustion process
Smog can environmentally protective idea be met to reduce its pollution to environment by glass fibre and kieselguhr adsorption；
3, production method is simple, and each raw material is easily mixed in the production process, according to the different using in batches of material performance
Raw material caused by the mode of secondary addition can be added at one time to avoid tradition is reunited and difficult uniformly mixed phenomenon occurs, in turn
Shorten fabrication cycle, improves producing efficiency.
Specific implementation mode
The present invention is made further to explain with reference to specific embodiment.
Embodiment one
A kind of 125 DEG C of low smoke and zero halogens cross-linking type polyolefin cable material production method proposed by the present invention, includes the following steps：
The preparation of S1, cable material raw material：Each raw material, 100 parts of polyethylene, ethylene-acetate are weighed according to following parts by weight
45 parts of vinyl ester copolymers, 5 parts of raw-silastic continuously, 20 parts of ethylene propylene diene rubber raw rubber, 8 parts of glass fibre, 12 parts of diatomite, in vain
2 parts of carbon black, 3 parts of melamine, 3 parts of cyclophosphamide polymer, 6 parts of antimony oxide, 1.6 parts of sulphur, tetramethyl autumn
0.25 part of blue nurse, N- cyclohexyls -0.45 part of 2-[4-morpholinodithio sulfenamide, 2 parts of phosphite ester, 0.7 part of light stabilizer, wetting agent
It is 15 parts, spare；
S2, it the step S1 raw-silastic continuouslies prepared and ethylene propylene diene rubber raw rubber is added in mixer carries out mixing,
The step S1 polyethylene prepared and vinyl-vinyl acetate copolymer are added again, are kneaded, it is to be mixed uniformly up to epoxy glue
Material；
S3, wetting agent, glass fibre, diatomite, white carbon, trimerization that step S1 prepares are sequentially added into blend glue stuff
Cyanamide, cyclophosphamide polymer and antimony oxide, continue to be kneaded, the remaining material one to be mixed for uniformly again preparing step S1
And be added, continue to be kneaded, obtains cable material；
S4, high-energy electron beam irradiation, irradiation energy 185KGy are carried out to cable material prepared by step S3, irradiation terminates again
It is transferred to extrusion molding in screw extruder, screw extruder is five sections of temperature-control structures, and the temperature of first segment is 120 DEG C,
The temperature of second segment is 170 DEG C, and the temperature of third section is 210 DEG C, and the 4th section of temperature is 195 DEG C, and the 5th section of temperature is 190
DEG C, it is transferred to fluid bed after extrusion molding and carries out post-cure, the temperature of primary vulcanization is 160 DEG C, vulcanization time 2h, the
The temperature of post-cure is 190 DEG C, vulcanization time 3h, and vulcanization terminates up to 125 DEG C of low smoke and zero halogen cross-linking type polyolefin cables
Material.
In the present invention, wetting agent is polyethylene wax and stearic mixture, and polyethylene wax and stearic mass ratio
It is 4：1.
Embodiment two
A kind of 125 DEG C of low smoke and zero halogens cross-linking type polyolefin cable material production method proposed by the present invention, includes the following steps：
The preparation of S1, cable material raw material：Each raw material, 100 parts of polyethylene, ethylene-acetate are weighed according to following parts by weight
40 parts of vinyl ester copolymers, 10 parts of raw-silastic continuously, 15 parts of ethylene propylene diene rubber raw rubber, 5 parts of glass fibre, 8 parts of diatomite, in vain
4 parts of carbon black, 2 parts of melamine, 2 parts of cyclophosphamide polymer, 4 parts of antimony oxide, 1 part of sulphur, tetramethyl autumn are blue
0.45 part of nurse, N- cyclohexyls -0.45 part of 2-[4-morpholinodithio sulfenamide, 2 parts of phosphite ester, 0.5 part of light stabilizer, wetting agent 13
Part, it is spare；
S2, it the step S1 raw-silastic continuouslies prepared and ethylene propylene diene rubber raw rubber is added in mixer carries out mixing,
The step S1 polyethylene prepared and vinyl-vinyl acetate copolymer are added again, are kneaded, it is to be mixed uniformly up to epoxy glue
Material；
S3, wetting agent, glass fibre, diatomite, white carbon, trimerization that step S1 prepares are sequentially added into blend glue stuff
Cyanamide, cyclophosphamide polymer and antimony oxide, continue to be kneaded, the remaining material one to be mixed for uniformly again preparing step S1
And be added, continue to be kneaded, obtains cable material；
S4, high-energy electron beam irradiation, irradiation energy 190KGy are carried out to cable material prepared by step S3, irradiation terminates again
It is transferred to extrusion molding in screw extruder, screw extruder is five sections of temperature-control structures, and the temperature of first segment is 125 DEG C,
The temperature of second segment is 165 DEG C, and the temperature of third section is 205 DEG C, and the 4th section of temperature is 193 DEG C, and the 5th section of temperature is 188
DEG C, it is transferred to fluid bed after extrusion molding and carries out post-cure, the temperature of primary vulcanization is 164 DEG C, vulcanization time 1.5h,
The temperature of second vulcanization is 194 DEG C, vulcanization time 2h, and vulcanization terminates up to 125 DEG C of low smoke and zero halogen cross-linking type polyolefin lines
Cable material.
In the present invention, wetting agent is polyethylene wax and stearic mixture, and polyethylene wax and stearic mass ratio
It is 3：1.
Embodiment three
A kind of 125 DEG C of low smoke and zero halogens cross-linking type polyolefin cable material production method proposed by the present invention, includes the following steps：
The preparation of S1, cable material raw material：Each raw material, 100 parts of polyethylene, ethylene-acetate are weighed according to following parts by weight
35 parts of vinyl ester copolymers, 15 parts of raw-silastic continuously, 10 parts of ethylene propylene diene rubber raw rubber, 3 parts of glass fibre, 5 parts of diatomite, in vain
6 parts of carbon black, 1 part of melamine, 1 part of cyclophosphamide polymer, 2 parts of antimony oxide, 0.5 part of sulphur, tetramethyl autumn
0.65 part of blue nurse, N- cyclohexyls -0.25 part of 2-[4-morpholinodithio sulfenamide, 3 parts of phosphite ester, 0.3 part of light stabilizer, wetting agent
It is 10 parts, spare；
S2, it the step S1 raw-silastic continuouslies prepared and ethylene propylene diene rubber raw rubber is added in mixer carries out mixing,
The step S1 polyethylene prepared and vinyl-vinyl acetate copolymer are added again, are kneaded, it is to be mixed uniformly up to epoxy glue
Material；
S3, wetting agent, glass fibre, diatomite, white carbon, trimerization that step S1 prepares are sequentially added into blend glue stuff
Cyanamide, cyclophosphamide polymer and antimony oxide, continue to be kneaded, the remaining material one to be mixed for uniformly again preparing step S1
And be added, continue to be kneaded, obtains cable material；
S4, high-energy electron beam irradiation, irradiation energy 190KGy are carried out to cable material prepared by step S3, irradiation terminates again
It is transferred to extrusion molding in screw extruder, screw extruder is five sections of temperature-control structures, and the temperature of first segment is 130 DEG C,
The temperature of second segment is 160 DEG C, and the temperature of third section is 200 DEG C, and the 4th section of temperature is 190 DEG C, and the 5th section of temperature is 185
DEG C, it is transferred to fluid bed after extrusion molding and carries out post-cure, the temperature of primary vulcanization is 168 DEG C, vulcanization time 1h, the
The temperature of post-cure is 198 DEG C, vulcanization time 1.5h, and vulcanization terminates up to 125 DEG C of low smoke and zero halogen cross-linking type polyolefin lines
Cable material.
In the present invention, wetting agent is polyethylene wax and stearic mixture, and polyethylene wax and stearic mass ratio
It is 2：1.
Example IV
A kind of 125 DEG C of low smoke and zero halogens cross-linking type polyolefin cable material production method proposed by the present invention, includes the following steps：
The preparation of S1, cable material raw material：Each raw material, 100 parts of polyethylene, ethylene-acetate are weighed according to following parts by weight
40 parts of vinyl ester copolymers, 10 parts of raw-silastic continuously, 15 parts of ethylene propylene diene rubber raw rubber, 5 parts of glass fibre, 8 parts of diatomite, in vain
4 parts of carbon black, 2 parts of melamine, 1 part of cyclophosphamide polymer, 2 parts of antimony oxide, 1 part of sulphur, tetramethyl autumn are blue
0.45 part of nurse, N- cyclohexyls -0.45 part of 2-[4-morpholinodithio sulfenamide, 2 parts of phosphite ester, 0.5 part of light stabilizer, wetting agent 13
Part, it is spare；
S2, it the step S1 raw-silastic continuouslies prepared and ethylene propylene diene rubber raw rubber is added in mixer carries out mixing,
The step S1 polyethylene prepared and vinyl-vinyl acetate copolymer are added again, are kneaded, it is to be mixed uniformly up to epoxy glue
Material；
S3, wetting agent, glass fibre, diatomite, white carbon, trimerization that step S1 prepares are sequentially added into blend glue stuff
Cyanamide, cyclophosphamide polymer and antimony oxide, continue to be kneaded, the remaining material one to be mixed for uniformly again preparing step S1
And be added, continue to be kneaded, obtains cable material；
S4, high-energy electron beam irradiation, irradiation energy 190KGy are carried out to cable material prepared by step S3, irradiation terminates again
It is transferred to extrusion molding in screw extruder, screw extruder is five sections of temperature-control structures, and the temperature of first segment is 125 DEG C,
The temperature of second segment is 165 DEG C, and the temperature of third section is 205 DEG C, and the 4th section of temperature is 193 DEG C, and the 5th section of temperature is 188
DEG C, it is transferred to fluid bed after extrusion molding and carries out post-cure, the temperature of primary vulcanization is 164 DEG C, vulcanization time 1.5h,
The temperature of second vulcanization is 194 DEG C, vulcanization time 2h, and vulcanization terminates up to 125 DEG C of low smoke and zero halogen cross-linking type polyolefin lines
Cable material.
In the present invention, wetting agent is polyethylene wax and stearic mixture, and polyethylene wax and stearic mass ratio
It is 3：1.
Embodiment five
A kind of 125 DEG C of low smoke and zero halogens cross-linking type polyolefin cable material production method proposed by the present invention, includes the following steps：
The preparation of S1, cable material raw material：Each raw material, 100 parts of polyethylene, ethylene-acetate are weighed according to following parts by weight
40 parts of vinyl ester copolymers, 10 parts of raw-silastic continuously, 15 parts of ethylene propylene diene rubber raw rubber, 5 parts of glass fibre, 8 parts of diatomite, in vain
4 parts of carbon black, 1 part of melamine, 1.5 parts of cyclophosphamide polymer, 3 parts of antimony oxide, 1 part of sulphur, tetramethyl autumn
0.45 part of blue nurse, N- cyclohexyls -0.45 part of 2-[4-morpholinodithio sulfenamide, 2 parts of phosphite ester, 0.5 part of light stabilizer, wetting agent
It is 13 parts, spare；
S2, it the step S1 raw-silastic continuouslies prepared and ethylene propylene diene rubber raw rubber is added in mixer carries out mixing,
The step S1 polyethylene prepared and vinyl-vinyl acetate copolymer are added again, are kneaded, it is to be mixed uniformly up to epoxy glue
Material；
S3, wetting agent, glass fibre, diatomite, white carbon, trimerization that step S1 prepares are sequentially added into blend glue stuff
Cyanamide, cyclophosphamide polymer and antimony oxide, continue to be kneaded, the remaining material one to be mixed for uniformly again preparing step S1
And be added, continue to be kneaded, obtains cable material；
S4, high-energy electron beam irradiation, irradiation energy 190KGy are carried out to cable material prepared by step S3, irradiation terminates again
It is transferred to extrusion molding in screw extruder, screw extruder is five sections of temperature-control structures, and the temperature of first segment is 125 DEG C,
The temperature of second segment is 165 DEG C, and the temperature of third section is 205 DEG C, and the 4th section of temperature is 193 DEG C, and the 5th section of temperature is 188
DEG C, it is transferred to fluid bed after extrusion molding and carries out post-cure, the temperature of primary vulcanization is 164 DEG C, vulcanization time 1.5h,
The temperature of second vulcanization is 194 DEG C, vulcanization time 2h, and vulcanization terminates up to 125 DEG C of low smoke and zero halogen cross-linking type polyolefin lines
Cable material.
In the present invention, wetting agent is polyethylene wax and stearic mixture, and polyethylene wax and stearic mass ratio
It is 3：1.
Using above-described embodiment one, embodiment two, embodiment three, example IV and embodiment five make cable material and
Commercially available irradiation polyolefin cable material is tested for the property respectively, and is with the test result of commercially available irradiation polyolefin cable material
The performance of criterion embodiment one, embodiment two, embodiment three, example IV and embodiment five is as a result as follows：
In table, "+" indicates the raised percentage of test result compared to commercially available irradiation polyolefin cable material；
"-" indicates the percentage that the test result compared to commercially available irradiation polyolefin cable material reduces.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of 125 DEG C of low smoke and zero halogen cross-linking type polyolefin cable material production methods, which is characterized in that include the following steps：
The preparation of S1, cable material raw material：Each raw material, 100 parts of polyethylene, ethane-acetic acid ethyenyl are weighed according to following parts by weight
35~45 parts of ester copolymer, 5~15 parts of raw-silastic continuously, 10~20 parts of ethylene propylene diene rubber raw rubber, 3~8 parts of glass fibre, silicon
5~12 parts of diatomaceous earth, 2~6 parts of white carbon, 1~3 part of melamine, 1~3 part of cyclophosphamide polymer, antimony oxide 2~6
Part, 0.5~1.6 part of sulphur, 0.25~0.65 part of tetramethylthiuram disulfide, N- cyclohexyls -2-[4-morpholinodithio sulfenamide
0.25~0.65 part, 1~3 part of phosphite ester, 0.3~0.7 part of light stabilizer, 10~15 parts of wetting agent is spare；
S2, it the step S1 raw-silastic continuouslies prepared and ethylene propylene diene rubber raw rubber is added in mixer carries out mixing, then will
The polyethylene and vinyl-vinyl acetate copolymer that step S1 prepares are added, and are kneaded, to be mixed uniformly up to blend glue stuff；
S3, wetting agent, glass fibre, diatomite, white carbon, melamine that step S1 prepares are sequentially added into blend glue stuff
Amine, cyclophosphamide polymer and antimony oxide, continue to be kneaded, and the remaining material to be mixed for uniformly again preparing step S1 is together
It is added, continues to be kneaded, obtain cable material；
S4, high-energy electron beam irradiation is carried out to cable material prepared by step S3, irradiation energy is 185~195KGy, and irradiation terminates
Extrusion molding in screw extruder is transferred to, fluid bed is then transferred to and is vulcanized to get 125 DEG C of low smoke and zero halogens crosslinkings
Type polyolefin cable material.
2. a kind of 125 DEG C of low smoke and zero halogens cross-linking type polyolefin cable material production method according to claim 1, feature exist
In the polyethylene, vinyl-vinyl acetate copolymer, raw-silastic continuously, ethylene propylene diene rubber raw rubber, glass fibre, diatom
Soil, white carbon, melamine, cyclophosphamide polymer, antimony oxide, sulphur, tetramethylthiuram disulfide, N- rings are
Base -2-[4-morpholinodithio sulfenamide, phosphite ester, light stabilizer and wetting agent mass ratio be 100：40：10：15：5：8：4：
2：2：4：1：0.45：0.45：2：0.5：13.
3. a kind of 125 DEG C of low smoke and zero halogens cross-linking type polyolefin cable material production method according to claim 1, feature exist
In the wetting agent is polyethylene wax and stearic mixture, and polyethylene wax and stearic mass ratio are 2~4：1.
4. a kind of 125 DEG C of low smoke and zero halogens cross-linking type polyolefin cable material production method according to claim 1, feature exist
In the mass ratio of the melamine, cyclophosphamide polymer and antimony oxide is 1：0.5~1.5：1~3.
5. a kind of 125 DEG C of low smoke and zero halogens cross-linking type polyolefin cable material production method according to claim 1, feature exist
In the irradiation energy is 190KGy.
6. a kind of 125 DEG C of low smoke and zero halogens cross-linking type polyolefin cable material production method according to claim 1, feature exist
In the screw extruder is five sections of temperature-control structures, and the temperature of first segment is 120~130 DEG C, and the temperature of second segment is 160
~170 DEG C, the temperature of third section is 200~210 DEG C, and the 4th section of temperature is 190~195 DEG C, the 5th section of temperature is 185~
190℃。
7. a kind of 125 DEG C of low smoke and zero halogens cross-linking type polyolefin cable material production method according to claim 1, feature exist
In the vulcanization includes that primary vulcanization and second vulcanize, and the temperature of primary vulcanization is 160~168 DEG C, vulcanization time is
1~2h, the temperature of second of vulcanization is 190~198 DEG C, vulcanization time is 1.5~3h.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110343319A (en) * | 2019-07-24 | 2019-10-18 | 天长市海纳电气有限公司 | A kind of low smoke and zero halogen cable processing method |
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Application publication date: 20180824 |