CN108586869A - A kind of modification regeneration polyethylene filling environment-friendly cable and preparation method thereof - Google Patents
A kind of modification regeneration polyethylene filling environment-friendly cable and preparation method thereof Download PDFInfo
- Publication number
- CN108586869A CN108586869A CN201810394342.4A CN201810394342A CN108586869A CN 108586869 A CN108586869 A CN 108586869A CN 201810394342 A CN201810394342 A CN 201810394342A CN 108586869 A CN108586869 A CN 108586869A
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- CN
- China
- Prior art keywords
- polyethylene
- modification regeneration
- weight
- cable
- environment
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Classifications
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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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1895—Internal space filling-up means
-
- 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
-
- 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
- C08L2207/20—Recycled plastic
Abstract
The present invention relates to a kind of modification regeneration polyethylene to fill environment-friendly cable and preparation method thereof.The modification regeneration PE cable prepared according to embodiments of the present invention is made of core, the modification regeneration polyethylene packing, the outer jacket that are filled in core gap and outside；The minimal impact intensity of modification regeneration polyethylene packing is 28kJ/m2, tensile strength is 65MPa 70MPa, and minimum elongation at break is 26.2%.Compared with prior art, modification regeneration polyethylene according to the present invention fills environment-friendly cable, the recycling of crosslinked polyethylene waste material may be implemented, while promoting comprehensive utilization of resources, energy-saving and emission-reduction and optimizing the environment, improve the tight ness rating and roundness of the construction of cable, the moisture absorption for avoiding Conventional filler material improves the bending property, mechanical performance and shock resistance of cable.
Description
Technical field
The invention belongs to electric line clothing arts, it is related to a kind of cable and preparation method thereof more particularly to one kind changes
Property regenerated polythene filling environment-friendly cable and preparation method thereof.
Background technology
Crosslinked polyethylene is widely used in the insulating materials of electric wire, and due to passing through crosslinking Treatment, crosslinked polyethylene is having
With poor plasticity while standby stability, become a kind of material of extremely difficult recycling.Electric wire is in the process of manufacturing
In and when model change can all generate a large amount of crosslinked polyethylene waste materials, crosslinked polyethylene waste material industrial at present is all to burn
Burn or burial processing, it is wasting simultaneously, it is also extremely serious to environmental disruption.How the returning of crosslinked polyethylene waste material is realized
It receives, and applied to the important measures in electric wire production, being realization resource circulation utilization, energy-saving and emission-reduction and environment optimization, meaning
Justice is great.
Invention content
In order to overcome problems of the prior art, the present invention is intended to provide a kind of filling environmental protection of modification regeneration polyethylene
The preparation method of type cable and modification regeneration polyethylene filling environment-friendly cable.
According to an aspect of the present invention, a kind of modification regeneration polyethylene fills environment-friendly cable, by core, is filled in core
The modification regeneration polyethylene packing and outer jacket in gap and outside form；Wherein, by weight by discarded crosslinked polyethylene
100 parts by weight of particle and linear low density polyethylene resin particle 15-40 parts by weight are sufficiently mixed, extrusion molding and are granulated,
Obtain compound particle；100 parts by weight of described compound particle and methanol 800-1000 parts by weight are sufficiently mixed, by closed anti-
It answers postcooling to room temperature, obtains polyethylene gel；It is handled by polyethylene gel extrusion molding, and by slitting, obtains being modified again
Raw polyethylene packing.
Exemplary embodiment according to the present invention, when confined reaction, using inert gas shielding, 230 DEG C -280 DEG C,
30min-50min is kept under conditions of 5MPa-25MPa.
Exemplary embodiment according to the present invention, polyethylene weight percentage is 80%-95% in the polyethylene gel.
Exemplary embodiment according to the present invention, when polyethylene gel extrusion molding, extrusion temperature is 95 DEG C -120 DEG C, is squeezed
It is 120Mpa to go out pressure.
The minimal impact intensity of exemplary embodiment according to the present invention, the modification regeneration polyethylene packing is
28kJ/m2, tensile strength 65MPa-70MPa, minimum elongation at break are 26.2%.
The not rounded degree of exemplary embodiment according to the present invention, the modification regeneration polyethylene filling environment-friendly cable is small
In 5%, minimum bending radius 5D.
According to another aspect of the present invention, a kind of preparation method of modification regeneration polyethylene filling environment-friendly cable, including
Following steps：
Prepare cable core；
Discarded crosslinked polyethylene (for example, discarded crosslinked polyethylene leftover pieces) is useless by sorting, cleaning, be broken into
Crosslinked polyethylene particle is abandoned, discarded crosslinked polyethylene is surface-treated using absolute alcohol；
By weight by discarded 100 parts by weight of crosslinked polyethylene particle, linear low density polyethylene resin particle 15-40 weights
Amount part is sufficiently mixed, and to mixed particle extrusion molding and is granulated using double screw extruder, obtains compound particle；
100 parts by weight of above-mentioned compound particle, methanol 800-1000 parts by weight are sufficiently mixed, are placed in closed reactor,
Using inert gas shielding, 30min-50min is kept under conditions of 230 DEG C -280 DEG C, 5MPa-25MPa, it is cooling (for example, water
It is cold) to room temperature, obtain polyethylene gel, wherein polyethylene weight percentage is 80%-95% in polyethylene gel；
By polyethylene gel extrusion molding, and led at 95 DEG C of -120 DEG C of temperature and the pressure of 120Mpa using extruder
Slitting processing is crossed, regenerated polythene packing is obtained；
Packing is filled into core gap and outside, obtains into cable core；
Outer jacket is extruded on the outside of at cable core, modification regeneration polyethylene is made and fills environment-friendly cable.
Exemplary embodiment according to the present invention, a diameter of Φ 2mm- Φ 5mm of the regenerated polythene packing.
Compared with prior art, the present invention modification regeneration polyethylene according to the present invention fills environment-friendly cable, Ke Yishi
The recycling of existing crosslinked polyethylene waste material improves electricity while promoting comprehensive utilization of resources, energy-saving and emission-reduction and optimizing the environment
The tight ness rating and roundness of cable structure, avoid the moisture absorption of Conventional filler material, improve the bending property of cable, mechanical performance and
Shock resistance.
Specific implementation mode
To keep technical solution of the present invention and advantage clearer, the present invention is made into one by following specific embodiment
Step detailed description.Obviously, described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1：
1, cable core is prepared；
2, by discarded crosslinked polyethylene leftover pieces by sorting, cleaning, be broken into particle, using absolute alcohol to its into
Row surface treatment；
3, by weight by discarded 100 parts by weight of crosslinked polyethylene particle, 15 weight of linear low density polyethylene resin particle
Amount part is sufficiently mixed, and to mixed particle extrusion molding and is granulated using double screw extruder, obtains compound particle；
4,100 parts by weight of above-mentioned compound particle, 800 parts by weight of methanol are sufficiently mixed, are placed in closed reactor, used
Inert gas shielding keeps 30min, water cooling to room temperature to obtain polyethylene gel under conditions of 230 DEG C, 5MPa, wherein poly-
Polyethylene weight percentage is 80% in ethylene gel；
5, using extruder, at 95 DEG C of temperature and the pressure of 120Mpa, by gel extrusion molding, and by slitting at
Reason, obtains Φ 2mm packings；
6, packing is filled into core gap and outside, obtains into cable core；
7, outer jacket is extruded on the outside of at cable core, modification regeneration polyethylene is made and fills environment-friendly cable.
8, the minimal impact intensity of modification regeneration polyethylene packing obtained is 28kJ/m2, tensile strength 65MPa-
70MPa, minimum elongation at break are 26.2%.
9, the not rounded degree of cable obtained is less than 5%, minimum bending radius 5D.
Embodiment 2：
1, cable core is prepared；
2, by discarded crosslinked polyethylene leftover pieces by sorting, cleaning, be broken into particle, using absolute alcohol to its into
Row surface treatment；
3, by weight by discarded 100 parts by weight of crosslinked polyethylene particle, 20 weight of linear low density polyethylene resin particle
Amount part is sufficiently mixed, and to mixed particle extrusion molding and is granulated using double screw extruder, obtains compound particle；
4,100 parts by weight of above-mentioned compound particle, 1000 parts by weight of methanol are sufficiently mixed, are placed in closed reactor, adopt
Blanketing with inert gas keeps 35min, water cooling to room temperature to obtain polyethylene gel under conditions of 250 DEG C, 10MPa, wherein
Polyethylene weight percentage is 85% in polyethylene gel；
5, using extruder, at 118 DEG C of temperature and the pressure of 120Mpa, by gel extrusion molding, and by slitting at
Reason, obtains Φ 2mm packings；
6, packing is filled into core gap and outside, obtains into cable core；
7, outer jacket is extruded on the outside of at cable core, modification regeneration polyethylene is made and fills environment-friendly cable.
8, the minimal impact intensity of modification regeneration polyethylene packing obtained is 28kJ/m2, tensile strength 65MPa-
70MPa, minimum elongation at break are 26.2%.
9, the not rounded degree of cable obtained is less than 5%, minimum bending radius 5D.
Embodiment 3：
1, cable core is prepared；
2, by discarded crosslinked polyethylene leftover pieces by sorting, cleaning, be broken into particle, using absolute alcohol to its into
Row surface treatment；
3, by weight by discarded 100 parts by weight of crosslinked polyethylene particle, 40 weight of linear low density polyethylene resin particle
Amount part is sufficiently mixed, and to mixed particle extrusion molding and is granulated using double screw extruder, obtains compound particle；
4,100 parts by weight of above-mentioned compound particle, 1000 parts by weight of methanol are sufficiently mixed, are placed in closed reactor, adopt
Blanketing with inert gas keeps 50min, water cooling to room temperature to obtain polyethylene gel under conditions of 280 DEG C, 25MPa, wherein
Polyethylene weight percentage is 95% in polyethylene gel；
5, using extruder, at 120 DEG C of temperature and the pressure of 120Mpa, by gel extrusion molding, and by slitting at
Reason, obtains Φ 3mm packings；
6, packing is filled into core gap and outside, obtains into cable core；
7, outer jacket is extruded on the outside of at cable core, modification regeneration polyethylene is made and fills environment-friendly cable.
8, the minimal impact intensity of modification regeneration polyethylene packing obtained is 28kJ/m2, tensile strength 65MPa-
70MPa, minimum elongation at break are 26.2%.
9, the not rounded degree of cable obtained is less than 5%, minimum bending radius 5D.
It should be noted that the present invention to the material of cable core and outer jacket without particular/special requirement, ability may be used
The common core material in domain and outer sheath material, details are not described herein.
Above-described specific implementation mode has carried out further the purpose of the present invention, technical solution and advantageous effect
It is described in detail, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not intended to limit the present invention
Protection domain, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of modification regeneration polyethylene fills environment-friendly cable, which is characterized in that the modification regeneration polyethylene filling environmental protection
Type cable is made of core, the modification regeneration polyethylene packing, the outer jacket that are filled in core gap and outside；Wherein, weight is pressed
Measure part discarded 100 parts by weight of crosslinked polyethylene particle and linear low density polyethylene resin particle 15-40 parts by weight are abundant
Mixing, extrusion molding are simultaneously granulated, and obtain compound particle；By 100 parts by weight of described compound particle and methanol 800-1000 weight
Part is sufficiently mixed, by confined reaction postcooling to room temperature, obtains polyethylene gel；By polyethylene gel extrusion molding, and lead to
Slitting processing is crossed, modification regeneration polyethylene packing is obtained.
2. modification regeneration polyethylene according to claim 1 fills environment-friendly cable, which is characterized in that when confined reaction,
Using inert gas shielding, 30min-50min is kept under conditions of 230 DEG C -280 DEG C, 5MPa-25MPa.
3. modification regeneration polyethylene according to claim 2 fills environment-friendly cable, which is characterized in that the polyethylene is solidifying
Polyethylene weight percentage is 80%-95% in glue.
4. modification regeneration polyethylene according to claim 1 fills environment-friendly cable, which is characterized in that polyethylene gel is squeezed
When going out to be molded, extrusion temperature is 95 DEG C -120 DEG C, extrusion pressure 120Mpa.
5. modification regeneration polyethylene according to claim 1 fills environment-friendly cable, which is characterized in that the modification regeneration
The minimal impact intensity of polyethylene packing is 28kJ/m2, tensile strength 65MPa-70MPa, minimum elongation at break is
26.2%.
6. modification regeneration polyethylene according to claim 1 fills environment-friendly cable, which is characterized in that the modification regeneration
The not rounded degree that polyethylene fills environment-friendly cable is less than 5%, minimum bending radius 5D.
7. a kind of preparation method of modification regeneration polyethylene filling environment-friendly cable, which is characterized in that the method includes following
Step：
Prepare core；
By discarded crosslinked polyethylene by sorting, cleaning, be broken into discarded crosslinked polyethylene particle, using absolute alcohol to useless
Crosslinked polyethylene particle is abandoned to be surface-treated；
By weight by discarded 100 parts by weight of crosslinked polyethylene particle, linear low density polyethylene resin particle 15-40 parts by weight
It is sufficiently mixed, to mixed particle extrusion molding and is granulated using double screw extruder, obtains compound particle；
100 parts by weight of above-mentioned compound particle, methanol 800-1000 parts by weight are sufficiently mixed, are placed in closed reactor, are used
Inert gas shielding keeps 30min-50min under conditions of 230 DEG C -280 DEG C, 5MPa-25MPa, is cooled to room temperature, obtains
Polyethylene gel, wherein polyethylene weight percentage is 80%-95% in polyethylene gel；
Using extruder, at 95 DEG C of -120 DEG C of temperature and the pressure of 120Mpa, by polyethylene gel extrusion molding, and by cutting
Item processing, obtains regenerated polythene packing；
Regenerated polythene packing is filled into core gap and outside, obtains into cable core；
Outer jacket is extruded on the outside of at cable core, modification regeneration polyethylene is made and fills environment-friendly cable.
8. the preparation method of modification regeneration polyethylene filling environment-friendly cable according to claim 7, which is characterized in that institute
State a diameter of Φ 2mm- Φ 5mm of regenerated polythene packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810394342.4A CN108586869A (en) | 2018-04-27 | 2018-04-27 | A kind of modification regeneration polyethylene filling environment-friendly cable and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810394342.4A CN108586869A (en) | 2018-04-27 | 2018-04-27 | A kind of modification regeneration polyethylene filling environment-friendly cable and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108586869A true CN108586869A (en) | 2018-09-28 |
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|---|---|---|---|---|
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|---|---|---|---|---|
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| CN104166199A (en) * | 2012-12-13 | 2014-11-26 | 苏州亨利通信材料有限公司 | Manufacturing method of foaming filler rope |
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