CN108203524A - A kind of cable filler - Google Patents

A kind of cable filler Download PDF

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Publication number
CN108203524A
CN108203524A CN201611188338.XA CN201611188338A CN108203524A CN 108203524 A CN108203524 A CN 108203524A CN 201611188338 A CN201611188338 A CN 201611188338A CN 108203524 A CN108203524 A CN 108203524A
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Prior art keywords
cable filler
cable
gas
preparation
extruding machine
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Pending
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CN201611188338.XA
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不公告发明人
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Qingdao Xiangzhi Electronic Technology Co Ltd
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Qingdao Xiangzhi Electronic Technology Co Ltd
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Priority to CN201611188338.XA priority Critical patent/CN108203524A/en
Publication of CN108203524A publication Critical patent/CN108203524A/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
    • 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 belongs to the filler material 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 gap can be sufficient filling with, the rounding of appearance when ensure that cable cabling；And with high mechanical strength, face seal is good, waterproof, it is moisture-proof, be not easily broken, density is small, flame retardant property 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, specifically, being the filler material in a kind of cable.
Background technology
There are mainly three types of the traditional midium voltage cable packings produced on the market at present：The sector that crosslinked polyethylene waste material extrudes Packing；Polypropylene (PP) grid gasket for packing；Polyvinyl chloride or rubber tube packing.These types of packing due to its material, match The reason of side or shape, performance is not fully up to expectations, always more or less existing defects.
Invention content
To solve the above problems, the present invention provides a kind of stable molding, cable gap can be sufficient filling with, ensure that cable The rounding of appearance during stranding；And with high mechanical strength, face seal is good, waterproof, is not easily broken, density is small, it is light-weight, A kind of good cable filler of flame retardant property.
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) is ethylene 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) is that a kind of crystallinity is high, nonpolar Thermoplastic resin.Density is at 0.94 gram/cc or more
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, is packed into extruder hopper；
B) raw material generate the mixture of molten state by extruding machine；
C) gas is filled with into the mixture of molten state；
D) by C) external mold that is set through extruding machine exit of the obtained mixture 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 sink are passed sequentially through, then air-dries and obtains foam degrees Cable filler strip finished product for 50%--70%.The foam degrees refer to the foamed rear same volume of mixture for 50%--70% 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 in step is inert gas.
Inert gas is nitrogen.
It is to be inflated processing by the air charging system being mounted on extruding machine to be filled with gas.
The blowing pressure in air charging system is 3.0MPa~4.5MPa.
First, the present invention has been filled with nitrogen using the mixture 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%.Since present invention employs physical blowing, drops 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 sink finally air-dries, carry out interim cooling in this way, therefore avoids because suddenly It is cold, it drastically shrinks, influences properties of product, sizing, appearance, therefore ensure that formed product is stablized.
Therefore, it is had the following advantages using cable filler strip produced by the present invention：
1st, there is good craftsmanship, dimensionally stable can be sufficient filling with cable gap, appearance when ensure that cable cabling Roundness；
2nd, there is high mechanical strength, face seal is good, and waterproof is not easily broken, and density is small, light-weight, flame retardant property is good The advantages that, in the gap of cable filler strip remaining nitrogen to it is fire-retardant can also play the role of it is corresponding；
3rd, the recycling of the waste plastic such as LDPE: Low-density polyethylene plastics, high-density polyethylene plastics, polypropylene plastics is solved Recycling problem, effectively reduces product cost, is that high-tension cable produces ideal non-hygroscopic packing material；
4th, reduce the cable filler strips manufacturing procedure such as previous after-combustion and drying, make cable production operation technique accordingly simple Change, saved a large amount of energy and manpower, to improving working environment, shorten the production cycle, increase economic efficiency and product quality All have very great help.
Specific 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, is packed into extruder hopper；
B) raw material generate the mixture of molten state by extruding machine；
C) gas is filled with into the mixture of molten state；
D) by C) external mold that is set through extruding machine exit of the obtained mixture of step shapes to obtain cable filler strip；
E) by cable filler strip, 75 ± 5 DEG C of hot water storgae and room temperature sink 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 in step is nitrogen.
The gas that is filled with is to be inflated processing by the air charging system being mounted on extruding machine.
The blowing pressure in the air charging system 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, is packed into extruder hopper；
B) raw material generate the mixture of molten state by extruding machine；
C) gas is filled with into the mixture of molten state；
D) by C) external mold that is set through extruding machine exit of the obtained mixture of step shapes to obtain cable filler strip；
E) by cable filler strip, 75 ± 5 DEG C of hot water storgae and room temperature sink 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 in step is nitrogen.
The gas that is filled with is to be inflated processing by the air charging system being mounted on extruding machine.
The blowing pressure in the air charging system 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, is packed into extruder hopper；
B) raw material generate the mixture of molten state by extruding machine；
C) gas is filled with into the mixture of molten state；
D) by C) external mold that is set through extruding machine exit of the obtained mixture of step shapes to obtain cable filler strip；
E) by cable filler strip, 80 ± 5 DEG C of hot water storgae and room temperature sink 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 in step is nitrogen.
The gas that is filled with is to be inflated processing by the air charging system being mounted on extruding machine.
The blowing pressure in the air charging system is 4.0 ± 0.5MPa.

Claims (7)

1. a kind of 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. 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, is packed into extruder hopper；
B) raw material generate the mixture of molten state by extruding machine；
C) gas is filled with into the mixture of molten state；
D) by C) external mold that is set through extruding machine exit of the obtained mixture of step shapes to obtain cable filler strip；
E) by cable filler strip, 70-90 DEG C of hot water storgae and room temperature sink are passed sequentially through, is then air-dried and is obtained foam degrees and be The cable filler strip finished product of 50%-70%.
3. a kind of 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 preparation method of cable filler according to claim 3, it is characterised in that：The C) it is filled in step Gas be inert gas.
5. a kind of preparation method of cable filler according to claim 4, it is characterised in that：The inert gas is nitrogen Gas.
6. a kind of 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 air charging system being mounted on extruding machine.
7. a kind of preparation method of cable filler according to claim 6, it is characterised in that：In the air charging system The blowing pressure is 3.0MPa-4.5MPa.
CN201611188338.XA 2016-12-20 2016-12-20 A kind of cable filler Pending CN108203524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611188338.XA CN108203524A (en) 2016-12-20 2016-12-20 A kind of cable filler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611188338.XA CN108203524A (en) 2016-12-20 2016-12-20 A kind of cable filler

Publications (1)

Publication Number Publication Date
CN108203524A true CN108203524A (en) 2018-06-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611188338.XA Pending CN108203524A (en) 2016-12-20 2016-12-20 A kind of cable filler

Country Status (1)

Country Link
CN (1) CN108203524A (en)

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Application publication date: 20180626