CN107868313A - A kind of cable filler - Google Patents

A kind of cable filler Download PDF

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Publication number
CN107868313A
CN107868313A CN201610852259.8A CN201610852259A CN107868313A CN 107868313 A CN107868313 A CN 107868313A CN 201610852259 A CN201610852259 A CN 201610852259A CN 107868313 A CN107868313 A CN 107868313A
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China
Prior art keywords
cable filler
cable
gas
preparation
density polyethylene
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Pending
Application number
CN201610852259.8A
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Chinese (zh)
Inventor
李辉
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Qingdao Jiuzhou Thousand Machinery Co Ltd
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Qingdao Jiuzhou Thousand Machinery Co Ltd
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Priority to CN201610852259.8A priority Critical patent/CN107868313A/en
Publication of CN107868313A publication Critical patent/CN107868313A/en
Pending legal-status Critical Current

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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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • 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
    • 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
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
    • 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
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/06—Polyethene
    • 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
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/08—Copolymers of ethene
    • 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
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/10—Homopolymers or copolymers of propene
    • C08J2423/12—Polypropene
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/14—Applications used for foams
    • 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
    • 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
    • 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
    • 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
    • C08L2207/066—LDPE (radical process)
    • 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

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A kind of cable filler, the inserts belonged in a kind of cable.Including following components：LDPE: Low-density polyethylene plastics；High-density polyethylene plastics；Polypropylene plastics；Graphite；Foaming agent；Fire retardant.Foaming agent, fire retardant.There is stable molding using cable filler strip produced by the present invention, cable space can be sufficient filling with, the rounding of outward appearance when ensure that cable cabling；And there is high mechanical strength, face seal is good, waterproof, protection against the tide, is not easily broken, and density is small, fire resistance is good, it is economic and practical the advantages that.

Description

A kind of cable filler
Technical field
The present invention relates to field of cables, is the inserts in a kind of cable specifically.
Background technology
The traditional midium voltage cable packing produced on the market at present mainly has three kinds：The sector that crosslinked polyethylene waste material extrudes Packing；Polypropylene (PP) grid gasket for packing；Polyvinyl chloride or rubber tube packing.This several packing due to its material, match somebody with somebody The reason for side or shape, performance is not fully up to expectations, always more or less existing defects.
The content of the invention
To solve the above problems, the invention provides a kind of stable molding, cable space can be sufficient filling with, ensure that cable The rounding of outward appearance during stranding；And there is high mechanical strength, face seal is good, waterproof, is not easily broken, density is small, it is in light weight, A kind of good cable filler of fire resistance.
To achieve the above object, the scheme that uses of the present invention is：
A kind of cable filler, it is characterised in that：Include following components by weight：
A) LDPE: Low-density polyethylene plastics 20%-40%；The low density polyethylene (LDPE), it is ethene and a small amount of high alpha-olefin (such as butene-1, hexene -1, octene-1, tetramethyl amylene -1) forms under catalyst action through high pressure or low-pressure polymerization A kind of copolymer, density are between 0.915~0.940 gram/cc.
B) high-density polyethylene plastics 25%-50%；The high density polyethylene (HDPE), it is that a kind of crystallinity is high, nonpolar Thermoplastic resin.Density is more than 0.94 gram/cc
C) polypropylene plastics 25%-50%；
D) graphite 0.2%-0.3%；
E) foaming agent 0.04%-0.06%；
F) fire retardant 1%-2%.
Foaming agent is azodicarbonamide.
Fire retardant is nitrogen phosphorus expansion type flame retardant, can also be the mixture of aluminium hydroxide and magnesium hydroxide.
The method for preparing this cable filler strip, using following steps：
A) raw material each component is uniformly mixed according to a ratio, loads extruder hopper；
B) raw material generate the compound of molten state by extruding machine；
C) it is filled with gas into the compound of molten state；
D) by C) external mold that is set through extruding machine exit of the obtained compound of step shapes to obtain cable filler strip；
E) by cable filler strip, 70 DEG C -90 DEG C of hot water storgae and room temperature tank are passed sequentially through, then air-dries and obtains foam degrees For 50%--70% cable filler strip finished product.The foam degrees are that 50%--70% refers to the foamed rear same volume of compound Finished product, weight only has original 50%--30%.
B) in step the extruder barrel temperature control of extruding machine at 130 DEG C -- between 190 DEG C.
C) gas being filled with step is inert gas.
Inert gas is nitrogen.
It is to be inflated processing by the aerating device on extruding machine to be filled with gas.
The blowing pressure in aerating device is 3.0MPa~4.5MPa.
First, the present invention has been filled with nitrogen using the compound of a small amount of foaming agent and above-mentioned formula after extruding machine melts Gas, so that it may obtain the cable filler strip finished product that foam degrees are 50%--70%.Due to present invention employs physical blowing, therefore drop Low environmental pollution, has saved process and raw material, the stability of product greatly improves；Secondly, cable filler strip goes out from external mold 70-90 DEG C of hot water storgae is first passed through after coming, room temperature tank, is finally air-dried, so carry out interim cooling, therefore avoid because suddenly It is cold, drastically shrink, influence properties of product, sizing, outward appearance, therefore ensure that formed product is stable.
Therefore, there is advantages below using cable filler strip produced by the present invention：
1st, there is good manufacturability, dimensionally stable, cable space can be sufficient filling with, outward appearance when ensure that cable cabling Roundness；
2nd, there is high mechanical strength, face seal is good, waterproof, is not easily broken, and density is small, in light weight, fire resistance is good The advantages that, remaining nitrogen can also play corresponding effect to fire-retardant in the space of cable filler strip；
3rd, solves the recovery of the waste or used plastics such as LDPE: Low-density polyethylene plastics, high-density polyethylene plastics, polypropylene plastics Recycling problem, effectively reduces product cost, is that high-tension cable produces preferable non-hygroscopic packing material；
4th, reduce the cable filler strip manufacturing procedures such as conventional after-combustion and drying, make cable production operation technique accordingly simple Change, saved the substantial amounts of energy and manpower, to improving working environment, shorten the production cycle, increase economic efficiency and product quality All have very great help.
Embodiment
Embodiment 1
A kind of cable filler, it is characterised in that：Include following components by weight：
A) LDPE: Low-density polyethylene plastics 20%；
B) high-density polyethylene plastics 50%；
C) polypropylene plastics 28.76%；
D) graphite 0.2%；
E) foaming agent 0.04%；
F) fire retardant 1%.
The foaming agent is azodicarbonamide.
The fire retardant is nitrogen phosphorus expansion type flame retardant.
The method for preparing above-mentioned cable filler strip, using following steps：
A) raw material each component is uniformly mixed according to a ratio, loads extruder hopper；
B) raw material generate the compound of molten state by extruding machine；
C) it is filled with gas into the compound of molten state；
D) by C) external mold that is set through extruding machine exit of the obtained compound of step shapes to obtain cable filler strip；
E) by cable filler strip, 75 ± 5 DEG C of hot water storgae and room temperature tank are passed sequentially through, is then air-dried and is obtained foam degrees and be 50% cable filler strip finished product.
The B) in step extruding machine extruder barrel temperature control at 150 ± 20 DEG C.
The C) gas that is filled with step is nitrogen.
The gas that is filled with is to be inflated processing by the aerating device on extruding machine.
The blowing pressure in the aerating device is 3.25 ± 0.25MPa.
Embodiment 2
A kind of cable filler, it is characterised in that：Include following components by weight：
A) LDPE: Low-density polyethylene plastics 40%；
B) high-density polyethylene plastics 30%；
C) polypropylene plastics 27.76%；
D) graphite 0.2%；
E) foaming agent 0.04%；
F) fire retardant 2%.
The foaming agent is azodicarbonamide.
The fire retardant is nitrogen phosphorus expansion type flame retardant.
The method for preparing above-mentioned cable filler strip, using following steps：
A) raw material each component is uniformly mixed according to a ratio, loads extruder hopper；
B) raw material generate the compound of molten state by extruding machine；
C) it is filled with gas into the compound of molten state；
D) by C) external mold that is set through extruding machine exit of the obtained compound of step shapes to obtain cable filler strip；
E) by cable filler strip, 75 ± 5 DEG C of hot water storgae and room temperature tank are passed sequentially through, is then air-dried and is obtained foam degrees and be 55% cable filler strip finished product.
The B) in step extruding machine extruder barrel temperature control at 155 ± 20 DEG C.
The C) gas that is filled with step is nitrogen.
The gas that is filled with is to be inflated processing by the aerating device on extruding machine.
The blowing pressure in the aerating device is 3.5 ± 0.5MPa.
Embodiment 3
A kind of cable filler, it is characterised in that：Include following components by weight：
A) LDPE: Low-density polyethylene plastics 30%；
B) high-density polyethylene plastics 40%；
C) polypropylene plastics 27.76%；
D) graphite 0.2%；
E) foaming agent 0.04%；
F) fire retardant 2%.
The foaming agent is azodicarbonamide.
The fire retardant is nitrogen phosphorus expansion type flame retardant.
The method for preparing above-mentioned cable filler strip, using following steps：
A) raw material each component is uniformly mixed according to a ratio, loads extruder hopper；
B) raw material generate the compound of molten state by extruding machine；
C) it is filled with gas into the compound of molten state；
D) by C) external mold that is set through extruding machine exit of the obtained compound of step shapes to obtain cable filler strip；
E) by cable filler strip, 80 ± 5 DEG C of hot water storgae and room temperature tank are passed sequentially through, is then air-dried and is obtained foam degrees and be 60% cable filler strip finished product.
The B) in step extruding machine extruder barrel temperature control at 160 ± 20 DEG C.
The C) gas that is filled with step is nitrogen.
The gas that is filled with is to be inflated processing by the aerating device on extruding machine.
The blowing pressure in the aerating device is 4.0 ± 0.5MPa.

Claims (7)

  1. A kind of 1. cable filler, it is characterised in that：Include following components by weight：
    A) LDPE: Low-density polyethylene plastics 20%-40%；
    B) high-density polyethylene plastics 25%-50%；
    C) polypropylene plastics 25%-50%；
    D) graphite 0.2%-0.3%；
    E) foaming agent 0.04%-0.06%；
    F) fire retardant 1%-2%；
    The foaming agent is azodicarbonamide；The fire retardant is nitrogen phosphorus expansion type flame retardant.
  2. 2. prepare a kind of method of cable filler described in claim 1, it is characterised in that：Using following steps：
    A) raw material each component is uniformly mixed according to a ratio, loads extruder hopper；
    B) raw material generate the compound of molten state by extruding machine；
    C) it is filled with gas into the compound of molten state；
    D) by C) external mold that is set through extruding machine exit of the obtained compound of step shapes to obtain cable filler strip；
    E) by cable filler strip, 70-90 DEG C of hot water storgae and room temperature tank are passed sequentially through, is then air-dried and is obtained foam degrees and be 50%-70% cable filler strip finished product.
  3. A kind of 3. preparation method of cable filler according to claim 2, it is characterised in that：The B) extrusion molding in step The extruder barrel temperature control of machine is between 130-190 DEG C.
  4. A kind of 4. preparation method of cable filler according to claim 3, it is characterised in that：The C) it is filled with step Gas be inert gas.
  5. A kind of 5. preparation method of cable filler according to claim 4, it is characterised in that：The inert gas is nitrogen Gas.
  6. A kind of 6. preparation method of cable filler according to claim 2,3,4 and 5 any one, it is characterised in that： The gas that is filled with is to be inflated processing by the aerating device on extruding machine.
  7. A kind of 7. preparation method of cable filler according to claim 6, it is characterised in that：In the aerating device The blowing pressure is 3.0MPa-4.5MPa.
CN201610852259.8A 2016-09-26 2016-09-26 A kind of cable filler Pending CN107868313A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610852259.8A CN107868313A (en) 2016-09-26 2016-09-26 A kind of cable filler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610852259.8A CN107868313A (en) 2016-09-26 2016-09-26 A kind of cable filler

Publications (1)

Publication Number Publication Date
CN107868313A true CN107868313A (en) 2018-04-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610852259.8A Pending CN107868313A (en) 2016-09-26 2016-09-26 A kind of cable filler

Country Status (1)

Country Link
CN (1) CN107868313A (en)

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Application publication date: 20180403