CN115536952A - Strippable material for rubber sleeve cable and preparation method thereof - Google Patents
Strippable material for rubber sleeve cable and preparation method thereof Download PDFInfo
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- CN115536952A CN115536952A CN202211083496.4A CN202211083496A CN115536952A CN 115536952 A CN115536952 A CN 115536952A CN 202211083496 A CN202211083496 A CN 202211083496A CN 115536952 A CN115536952 A CN 115536952A
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- rubber
- rubber sleeve
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 75
- 239000005060 rubber Substances 0.000 title claims abstract description 66
- 239000000463 material Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 10
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims abstract description 9
- 239000000806 elastomer Substances 0.000 claims abstract description 9
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims abstract description 9
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 7
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 239000002270 dispersing agent Substances 0.000 claims abstract description 7
- 239000011159 matrix material Substances 0.000 claims abstract description 7
- 239000004014 plasticizer Substances 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 31
- 239000006229 carbon black Substances 0.000 claims description 26
- 239000004698 Polyethylene Substances 0.000 claims description 17
- 238000002791 soaking Methods 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 16
- -1 fatty acid ester Chemical class 0.000 claims description 15
- 229920002681 hypalon Polymers 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 229910019142 PO4 Inorganic materials 0.000 claims description 12
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 12
- 239000010452 phosphate Substances 0.000 claims description 12
- 229920000570 polyether Polymers 0.000 claims description 12
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 10
- 239000004209 oxidized polyethylene wax Substances 0.000 claims description 10
- 235000013873 oxidized polyethylene wax Nutrition 0.000 claims description 10
- 229920000642 polymer Polymers 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 229920000573 polyethylene Polymers 0.000 claims description 9
- 239000001993 wax Substances 0.000 claims description 9
- 238000005660 chlorination reaction Methods 0.000 claims description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- 239000007822 coupling agent Substances 0.000 claims description 6
- 239000003063 flame retardant Substances 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 4
- DKCPKDPYUFEZCP-UHFFFAOYSA-N 2,6-di-tert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(C(C)(C)C)=C1O DKCPKDPYUFEZCP-UHFFFAOYSA-N 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 125000001931 aliphatic group Chemical group 0.000 claims description 2
- 150000008052 alkyl sulfonates Chemical class 0.000 claims description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 2
- 235000013539 calcium stearate Nutrition 0.000 claims description 2
- 239000008116 calcium stearate Substances 0.000 claims description 2
- 239000013522 chelant Substances 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 239000012188 paraffin wax Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 229920005862 polyol Polymers 0.000 claims description 2
- MGMXGCZJYUCMGY-UHFFFAOYSA-N tris(4-nonylphenyl) phosphite Chemical compound C1=CC(CCCCCCCCC)=CC=C1OP(OC=1C=CC(CCCCCCCCC)=CC=1)OC1=CC=C(CCCCCCCCC)C=C1 MGMXGCZJYUCMGY-UHFFFAOYSA-N 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 claims 1
- 229920000459 Nitrile rubber Polymers 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 239000002738 chelating agent Substances 0.000 description 8
- 229920001577 copolymer Polymers 0.000 description 8
- MIMDHDXOBDPUQW-UHFFFAOYSA-N dioctyl decanedioate Chemical compound CCCCCCCCOC(=O)CCCCCCCCC(=O)OCCCCCCCC MIMDHDXOBDPUQW-UHFFFAOYSA-N 0.000 description 8
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 8
- 229920001169 thermoplastic Polymers 0.000 description 8
- 239000004416 thermosoftening plastic Substances 0.000 description 8
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 239000005909 Kieselgur Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 238000002242 deionisation method Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000000967 suction filtration Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Classifications
-
- 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
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/32—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with compounds containing phosphorus or sulfur
- C08L23/34—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with compounds containing phosphorus or sulfur by chlorosulfonation
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention relates to the technical field of cable sheaths, in particular to a strippable material for a rubber sleeve cable and a preparation method thereof, wherein the strippable material comprises the following raw materials in parts by weight: 90-100 parts of matrix rubber, 10-30 parts of thermoplastic polyurethane elastomer, 2-6 parts of plasticizer, 0.2-0.6 part of dispersant, 2-5 parts of stripping agent, 1-4 parts of antioxidant, 5-15 parts of modified filler and 3-5 parts of compatibilizer. The purpose is as follows: the rubber sleeve is used for solving the problems that when the rubber sleeve of the existing light and medium rubber sleeve cable pointed out in the background art is used by combining nitrile rubber and other rubbers, and is applied to some environments needing long-term exposure and complex environments, and when the rubber sleeve is exposed for a long time and accidentally hit or extruded by other materials, the rubber sleeve prepared by combining nitrile rubber and other rubbers is easy to damage and age, and is difficult to peel.
Description
Technical Field
The invention relates to the technical field of cable sheaths, in particular to a strippable material for a rubber sleeve cable and a preparation method thereof.
Background
The rubber sleeve cable is a flexible and movable cable variety which takes a plurality of strands of fine copper wires as conductors and is wrapped by rubber insulation and a rubber sheath. The rubber sleeve cable is widely used for movable power lines of various electrical equipment, such as daily electric appliances, electric machinery, electric devices and appliances, and can be used under indoor or outdoor environmental conditions. According to the mechanical external force applied to the cable, the product structure is divided into three types, namely light, medium and heavy. There is also a suitable splice in the cross section. Generally, light rubber sleeve cables are used for daily electric appliances and small electric equipment and are required to be soft, light and good in bending performance; the medium-sized rubber sleeve cable is widely used for agricultural electrification besides industrial use; the heavy cable is used for occasions such as port machinery, searchlights, large-scale hydraulic irrigation and drainage stations in the home industry and the like.
At present, the rubber sleeve of the light rubber sleeve cable or the medium rubber sleeve cable is generally made of styrene butadiene rubber or ethylene propylene rubber or nitrile rubber and other rubbers, most manufacturers use nitrile rubber and other rubbers, and the light rubber sleeve and the medium rubber sleeve have good mechanical property, oil resistance, solvent resistance, electric insulation property and high and low temperature resistance. However, when the light and medium rubber sleeve cables are applied to some building sites or agricultural equipment, the rubber sleeve prepared by combining nitrile rubber and other rubber is easy to damage and age and difficult to peel due to long-term exposure and accidental hitting or extrusion by others.
Disclosure of Invention
In view of the above, the present invention aims to provide a peelable material for a cabtyre cable and a preparation method thereof, which are used for solving the problems that when a rubber sleeve of the existing light and medium sized rubber sleeve cable indicated in the background art is used by combining nitrile rubber and other rubbers, and is applied to some complicated environments requiring long-term exposure to the sun, and when the rubber sleeve is accidentally hit or extruded by other objects, the rubber sleeve prepared by combining nitrile rubber and other rubbers is easy to damage and age, and is difficult to peel.
The invention solves the technical problems by the following technical means:
the application discloses rubber sleeve cable is with strippable material, including following part by weight raw materials: 90-100 parts of matrix rubber, 10-30 parts of thermoplastic polyurethane elastomer, 2-6 parts of plasticizer, 0.2-0.6 part of dispersant, 2-5 parts of stripping agent, 1-4 parts of antioxidant, 5-15 parts of modified filler and 3-5 parts of compatibilizer.
Further, the matrix rubber is chlorosulfonated polyethylene rubber, the molecular weight is 3-12 ten thousand, and the chlorination degree is 40-45%.
The chlorosulfonated polyethylene rubber has excellent ozone resistance, atmospheric aging resistance, chemical corrosion resistance, physical and mechanical properties, aging resistance, heat resistance, low temperature resistance, oil resistance, flame resistance, wear resistance and electric insulation resistance, and the chlorination degree is 40-45%, so that the chlorosulfonated polyethylene rubber has better low temperature performance.
Further, the thermoplastic polyurethane elastomer is a polyether polyurethane elastomer.
The polyurethane elastomer has excellent wear resistance, excellent ozone resistance, high hardness, high strength, good elasticity, low temperature resistance, oil resistance, chemical resistance and environmental resistance, and the polyether polyurethane elastomer has better low temperature resistance.
Further, the plasticizer is one or more of phthalic acid ester, aliphatic dibasic acid ester, fatty acid ester, benzene polyacid ester, polyol ester, epoxy hydrocarbon and alkyl sulfonate, the dispersing agent is one or more of polyethylene wax, calcium stearate, microcrystalline paraffin, amine stearate and higher alcohol, and the antioxidant is one or more of carbonyl-4, 4-diiso-methylene-fatty alcohol-phosphate ester chelate polymer, TNPP, 2, 6-di-tert-butyl phenol and WINGSTAYL.
Further, the stripping agent is oxidized polyethylene wax, and the compatibilizer is one of PE-g-ST, PP-g-ST, ABS-g-MAH, PE-g-MAH and PP-g-MAH.
Further, the modified filler is carbon black compounded diatomite, wherein the carbon black is N550, and the particle size is 30-50nm.
Further, the preparation of the modified filler comprises the following steps: placing the diatomite in a dilute acid solution, ultrasonically oscillating for 10-30min, then placing in clear water for soaking for 1-3h, continuously oscillating by ultrasonic waves in the soaking process, removing soaking water, adding a certain amount of deionized water, then adding a titanate coupling agent, ultrasonically oscillating for 10min, then adding N550, ultrasonically oscillating for 10-30min at the temperature of 40-60 ℃, standing overnight, centrifuging, taking precipitate, and then placing in an oven for drying to obtain the carbon black compounded diatomite.
The carbon black N550 is easy to disperse, can endow the sizing material with higher stiffness, has high extrusion speed, smooth extrusion surface, small mouth shape expansion, good high temperature resistance and heat conductivity of vulcanized rubber, better reinforcing property, elasticity and recoverability, porous structure of diatomite, pore diameter of 50-3000nm, strong adsorbability, stable chemical property, wear resistance, heat resistance and no toxicity.
Through soaking the diatomaceous earth dilute acid, get rid of the impurity in the hole, the rethread diatomaceous earth adsorbs the carbon black to through coupling agent crosslinking, make the carbon black stably adsorb in the hole of diatomaceous earth, and easy and rubber crosslinking, thereby can play elasticity, resilience performance and the tear resistance of reinforcing rubber materials, can also strengthen wear-resisting, ultraviolet resistance performance, simultaneously, can also avoid the injury and the environmental pollution of the human body that the carbon black caused in the use.
Furthermore, the power of the ultrasonic wave is 100-120W, and the frequency of the ultrasonic wave is 20000Hz-40000Hz.
The application also discloses a preparation method of the strippable material for the cabtyre cable, which applies the raw materials and further comprises the following steps:
s1, putting a thermoplastic polyurethane elastomer into an internal mixer, mixing for 2-5min at 90-120 ℃, adding a dispersing agent and a modified filler, continuously mixing for 5-10min, transferring into a screw extruder, extruding and granulating to obtain a premix for later use;
s2, placing the matrix rubber into a mixer, stirring for 5-10min at the temperature of 100-120 ℃, adding the plasticizer, the stripping agent and the antioxidant, continuing stirring for 3-5min, heating to 150-170 ℃, adding the premix and the compatibilizer prepared in the step S1, stirring for 5-15min, transferring into a double-screw extruder, extruding and granulating to obtain the strippable material.
The modified filler and the thermoplastic polyurethane elastomer are prepared into the premix firstly, so that damage to operators is avoided, the compression deformation and resilience of the thermoplastic polyurethane elastomer can be enhanced, and the premix is mixed with the matrix rubber and auxiliary materials to prepare the cable rubber sleeve which has good physical and mechanical properties, high and low temperature resistance and ozone resistance, can not generate cracks in outdoor exposure for 6 years, and has corona resistance and resilience.
Further, in the step S2, a flame retardant may be added, and the flame retardant is an organic phosphate.
By adding the organic phosphorus flame retardant, the flame retardant property of the rubber sleeve can be improved.
The invention adopting the technical scheme has the advantages that:
by using chlorosulfonated polyethylene rubber and polyether type polyurethane elastomer simultaneously and adding carbon black compounded diatomite, the low temperature resistance and compression deformation performance of the chlorosulfonated polyethylene rubber can be effectively improved, so that the chlorosulfonated polyethylene rubber has good physical and mechanical properties, high and low temperature resistance and ozone resistance when used as a rubber sleeve of a rubber sleeve cable, can not generate cracks in outdoor exposure for 6 years, has corona resistance and resilience, and is easy to strip.
Detailed Description
The present invention will be described in detail below with reference to specific examples:
example 1 preparation of strippable Material for cabtyre Cable
In the embodiment, the strippable material for the cabtyre cable comprises the following raw materials in parts by weight: 90kg of chlorosulfonated polyethylene rubber with the chlorination degree of 40 percent, 30k of thermoplastic polyether polyurethane elastomer with the molecular weight of 6 ten thousand, 2kg of dioctyl sebacate, 0.6kg of polyethylene wax, 2kg of oxidized polyethylene wax, 1kg of carbon-based-4, 4-diiso-methylene-fatty alcohol-phosphate chelating compound polymer, 3kg of maleic anhydride grafted PE copolymer and 20kg of carbon black compounded diatomite, wherein the raw materials are commercially available.
The specific operation steps of the carbon black compounded diatomite are as follows:
placing 30kg of diatomite in 0.1mol/L dilute hydrochloric acid solution, oscillating for 30min by ultrasonic waves with the power of 110W and the frequency of 30000Hz, then placing in enough clear water for soaking for 3h, during the soaking process, oscillating by the ultrasonic waves with the power of 110W and the frequency of 30000Hz, removing soaking water by suction filtration, adding a certain amount of deionized water to ensure that the diatomite is just immersed by deionization, then adding 2.3kg of titanate coupling agent, oscillating for 10min by ultrasonic waves with the power of 110W and the frequency of 30000Hz, then adding 11.6kg of N550 with the particle size of 45nm, oscillating for 30min by ultrasonic waves at 40 ℃, standing overnight, centrifuging by a centrifuge, taking precipitate, and then placing in an oven for drying at 90 ℃ to obtain the dry carbon black compounded diatomite.
S1, putting 30kg of thermoplastic polyether type polyurethane elastomer into an internal mixer, mixing for 5min at 90 ℃, adding 0.6kg of polyethylene wax and 20kg of carbon black compounded diatomite, continuing mixing for 5min, transferring into a screw extruder, extruding and granulating to obtain a premix for later use;
s2, placing 90kg of chlorosulfonated polyethylene rubber into a mixer, stirring for 10min at the temperature of 100 ℃, then adding 2kg of dioctyl sebacate, 2kg of oxidized polyethylene wax and 1kg of carbon-based-4, 4-diiso-methylene-fatty alcohol-phosphate chelating compound polymer, continuing stirring for 5min, heating to 150 ℃, adding 30kg of premix and 3kg of maleic anhydride grafted PE copolymer, stirring for 15min, transferring into a double-screw extruder, and extruding and granulating at the head temperature of 185-195 ℃ to obtain the strippable material.
Example 2 preparation of strippable Material for cabtyre Cable
In the embodiment, the strippable material for the cabtyre cable comprises the following raw materials in parts by weight: 100kg of chlorosulfonated polyethylene rubber with the chlorination degree of 40 percent, 20k of thermoplastic polyether polyurethane elastomer with the molecular weight of 6 ten thousand, 3.2kg of dioctyl sebacate, 0.42kg of polyethylene wax, 3.8kg of oxidized polyethylene wax, 2.2kg of carbon-based-4, 4-diiso-methylene-fatty alcohol-phosphate chelating compound polymer, 4kg of maleic anhydride grafted PE copolymer and 9.5kg of carbon black compounded diatomite, wherein the raw materials are commercially available.
The specific operation steps of the carbon black compounded diatomite are as follows:
placing 15kg of diatomite in 0.1mol/L dilute hydrochloric acid solution, oscillating for 20min by ultrasonic waves with the power of 120W and the frequency of 30000Hz, then placing in enough clear water for soaking for 2h, during the soaking process, oscillating by ultrasonic waves with the power of 120W and the frequency of 30000Hz, removing soaking water by suction filtration, adding a certain amount of deionized water to ensure that the diatomite is just immersed by deionization, then adding 0.92kg of titanate coupling agent, oscillating for 10min by ultrasonic waves with the power of 120W and the frequency of 30000Hz, then adding 8.7kg of N550 with the particle size of 45nm, oscillating for 20min by ultrasonic waves at the temperature of 50 ℃, standing overnight, centrifuging by a centrifuge, taking precipitate, and then placing in an oven for drying at the temperature of 90 ℃ to obtain the dry carbon black compounded diatomite.
S1, putting 20kg of thermoplastic polyether type polyurethane elastomer into an internal mixer, mixing for 3min at 110 ℃, adding 0.42kg of polyethylene wax and 9.5kg of carbon black compounded diatomite, continuously mixing for 7min, transferring into a screw extruder, extruding and granulating to obtain a premix for later use;
s2, placing 100kg of chlorosulfonated polyethylene rubber into a mixer, stirring for 7min at the temperature of 110 ℃, adding 3.2kg of dioctyl sebacate, 3.8kg of oxidized polyethylene wax and 2.2kg of carbon-based-4, 4-diiso-methylene-fatty alcohol-phosphate chelating compound polymer, continuing stirring for 4min, heating to 160 ℃, adding 20kg of premix and 4kg of maleic anhydride grafted PE copolymer, stirring for 8min, transferring into a double-screw extruder, and extruding and granulating at the head temperature of 185-195 ℃ to obtain the strippable material.
Example 3 preparation of strippable Material for cabtyre Cable III
In the embodiment, the strippable material for the cabtyre cable comprises the following raw materials in parts by weight: 100kg of chlorosulfonated polyethylene rubber with the chlorination degree of 40 percent, 10kg of thermoplastic polyether polyurethane elastomer with the molecular weight of 6 ten thousand, 6kg of dioctyl sebacate, 0.2kg of polyethylene wax, 5kg of oxidized polyethylene wax, 4kg of carbon-based-4, 4-diiso-methylene-fatty alcohol-phosphate chelating compound polymer, 5kg of maleic anhydride grafted PE copolymer and 5kg of carbon black compounded diatomite, wherein the raw materials can be purchased from the market.
The specific operation steps of the carbon black compounded diatomite are as follows:
placing 10kg of diatomite in 0.1mol/L dilute hydrochloric acid solution, oscillating for 10min by ultrasonic waves with the power of 120W and the frequency of 30000Hz, then placing in enough clear water for soaking for 1h, during the soaking process, oscillating by the ultrasonic waves with the power of 120W and the frequency of 30000Hz, removing soaking water by suction filtration, adding a certain amount of deionized water to ensure that the diatomite is just immersed by deionization, then adding 0.86kg of titanate coupling agent, oscillating for 10min by ultrasonic waves with the power of 120W and the frequency of 30000Hz, then adding 5.15kg of N550 with the particle size of 45nm, oscillating for 10min by ultrasonic waves at the temperature of 60 ℃, standing overnight, centrifuging by a centrifuge, taking precipitate, and then placing in an oven for drying at the temperature of 90 ℃ to obtain the dry carbon black compounded diatomite.
S1, putting 10kg of thermoplastic polyether type polyurethane elastomer into an internal mixer, mixing for 2min at 120 ℃, adding 0.2kg of polyethylene wax and 5kg of carbon black compounded diatomite, continuously mixing for 5min, transferring into a screw extruder, extruding and granulating to obtain a premix for later use;
s2, placing 100kg of chlorosulfonated polyethylene rubber into a mixer, stirring for 10min at the temperature of 100 ℃, then adding 6kg of dioctyl sebacate, 5kg of oxidized polyethylene wax and 4kg of carbon-based-4, 4-diiso-methylene-fatty alcohol-phosphate chelating compound polymer, continuing stirring for 3min, heating to 170 ℃, adding 10kg of premix and 5kg of maleic anhydride grafted PE copolymer, stirring for 5min, transferring into a double-screw extruder, and extruding and granulating at the head temperature of 185-195 ℃ to obtain the strippable material.
Example 4 (comparative example), preparation of strippable Material for cabtyre Cable IV
In the embodiment, the strippable material for the cabtyre cable comprises the following raw materials in parts by weight: 100kg of chlorosulfonated polyethylene rubber with a chlorination degree of 40%, 20k of thermoplastic polyether urethane elastomer with a molecular weight of 6 ten thousand, 3.2kg of dioctyl sebacate, 0.42kg of polyethylene wax, 3.8kg of oxidized polyethylene wax, 2.2kg of carbon-based-4, 4-diiso-methylene-fatty alcohol-phosphate chelating compound polymer, 4kg of maleic anhydride grafted PE copolymer, 4.5kg of carbon black N550,5kg of diatomite, which are commercially available.
The preparation method specifically comprises the following steps: 100kg of chlorosulfonated polyethylene rubber is placed in a mixer, stirred for 7min at the temperature of 110 ℃, then 3.2kg of dioctyl sebacate, 3.8kg of oxidized polyethylene wax and 2.2kg of carbon-based-4, 4-diiso-methylene-fatty alcohol-phosphate ester chelating compound polymer are added, the stirring is continued for 4min, the temperature is raised to 160 ℃,20kg of thermoplastic polyether polyurethane elastomer, 4.5kg of carbon black N550,5kg of diatomite and 4kg of maleic anhydride grafted PE copolymer are added, the mixture is stirred for 8min, the mixture is transferred into a double-screw extruder, and the mixture is extruded and granulated at the head temperature of 185-195 ℃ to obtain the strippable material.
The strippable materials of the cabtyre cables prepared in the examples 1 to 4 were tested for mechanical properties, bending properties, high and low temperature resistance and aging resistance, and the test methods in the following examples, which do not indicate specific conditions, were generally determined according to national standards. If there is no corresponding national standard, the test is carried out according to the universal international standard, the conventional conditions or the conditions recommended by the manufacturer, and the test results are shown in the following table:
the data in the table show that the strippable materials of the cabtyre cables prepared in the examples 1 to 3 have better physical and mechanical properties, bending property, high and low temperature resistance, stripping force and insolation resistance, and the comprehensive performance in the example 2 is better.
The data in the embodiment 2 and the embodiment 4 show that the premix is prepared firstly in the embodiment of the application, so that the physical and mechanical properties, the bending property and the high and low temperature resistance of the rubber sleeve cable strippable material are improved, the stripping force of the rubber sleeve cable strippable material can be reduced, the rubber sleeve can be stripped more easily, and the damage of carbon black to operators can be reduced.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (10)
1. The strippable material for the cabtyre cable is characterized by comprising the following raw materials in parts by weight: 90-100 parts of matrix rubber, 10-30 parts of thermoplastic polyurethane elastomer, 2-6 parts of plasticizer, 0.2-0.6 part of dispersant, 2-5 parts of stripping agent, 1-4 parts of antioxidant, 5-15 parts of modified filler and 3-5 parts of compatibilizer.
2. The strippable material for cabtyre cables as claimed in claim 1, wherein the base rubber is chlorosulfonated polyethylene rubber, the molecular weight is 3-12 ten thousand, and the chlorination degree is 40-45%.
3. The strippable material for an elastic cable according to claim 1, wherein the thermoplastic polyurethane elastomer is a polyether polyurethane elastomer.
4. The strippable material for the cabtyre cable according to claim 1, wherein the plasticizer is one or more of phthalate, aliphatic dibasic acid ester, fatty acid ester, benzene polyacid ester, polyol ester, epoxy hydrocarbon and alkyl sulfonate, the dispersing agent is one or more of polyethylene wax, calcium stearate, microcrystalline paraffin, stearic amine and higher alcohol, and the antioxidant is one or more of carbonyl-4, 4-diiso-methylene-fatty alcohol-phosphate ester chelate polymer, TNPP, 2, 6-di-tert-butyl phenol and WINGSTAYL.
5. The strippable material for the cabtyre cable according to claim 1, wherein the stripping agent is oxidized polyethylene wax, and the compatibilizer is one of PE-g-ST, PP-g-ST, ABS-g-MAH, PE-g-MAH and PP-g-MAH.
6. The strippable material for the cabtyre cable according to claim 1, wherein the modified filler is carbon black compounded diatomite, wherein the carbon black is N550, and the particle size is 30-50nm.
7. The strippable material for the cabtyre cable according to claim 6, wherein the preparation of the modified filler comprises the following steps: placing the diatomite in a dilute acid solution, ultrasonically oscillating for 10-30min, then placing in clear water for soaking for 1-3h, continuously oscillating by ultrasonic waves in the soaking process, removing soaking water, adding a certain amount of deionized water, then adding a titanate coupling agent, ultrasonically oscillating for 10min, then adding N550, ultrasonically oscillating for 10-30min at the temperature of 40-60 ℃, standing overnight, centrifuging, taking precipitate, and then placing in an oven for drying to obtain the carbon black compounded diatomite.
8. The strippable material for an cabtyre cable according to claim 6, wherein the power of the ultrasonic wave is 100-120W, and the frequency of the ultrasonic wave is 20000Hz-40000Hz.
9. A method for preparing a strippable material for an elastic cable, which is characterized by applying the raw material of any one of claims 1 to 8, and comprises the following steps:
s1, putting a thermoplastic polyurethane elastomer into an internal mixer, mixing for 2-5min at 90-120 ℃, adding a dispersing agent and a modified filler, continuously mixing for 5-10min, transferring into a screw extruder, extruding and granulating to obtain a premix for later use;
s2, placing the matrix rubber in a mixer, stirring for 5-10min at 100-120 ℃, adding the plasticizer, the stripping agent and the antioxidant, continuing stirring for 3-5min, heating to 150-170 ℃, adding the premix and the compatibilizer prepared in the step S1, stirring for 5-15min, transferring into a double-screw extruder, extruding, and granulating to obtain the strippable material.
10. The method for preparing the strippable material for the cabtyre cable according to claim 9, wherein in the step S2, a flame retardant is further added, and the flame retardant is organic phosphate.
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| JP2001254012A (en) * | 2000-03-10 | 2001-09-18 | Asahi Kasei Corp | Composition of polyurethane and rubbery elastomer |
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| CN113773638A (en) * | 2021-09-16 | 2021-12-10 | 宁波聚泰新材料科技有限公司 | Oil-proof paste easy-stripping type microbeam tube cable material and preparation method thereof |
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| JP2001254012A (en) * | 2000-03-10 | 2001-09-18 | Asahi Kasei Corp | Composition of polyurethane and rubbery elastomer |
| CN103214749A (en) * | 2013-03-26 | 2013-07-24 | 安徽华峰电缆集团有限公司 | Thermoplastic polyurethane elastomer cable material and preparation method thereof |
| CN107446253A (en) * | 2017-07-31 | 2017-12-08 | 铜陵市铜都特种线缆有限公司 | A kind of power cable cable jacket layer material |
| CN109575571A (en) * | 2018-12-06 | 2019-04-05 | 安徽荣达阀门有限公司 | A kind of high temperature resistant urban Underground pipeline valve spacer |
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