CN116355316A - Cable protection tube - Google Patents
Cable protection tube Download PDFInfo
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- CN116355316A CN116355316A CN202310630120.9A CN202310630120A CN116355316A CN 116355316 A CN116355316 A CN 116355316A CN 202310630120 A CN202310630120 A CN 202310630120A CN 116355316 A CN116355316 A CN 116355316A
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- Prior art keywords
- temperature
- protection tube
- cable protection
- parts
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- 239000003795 chemical substances by application Substances 0.000 claims abstract description 32
- 229910052582 BN Inorganic materials 0.000 claims abstract description 29
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000004743 Polypropylene Substances 0.000 claims abstract description 28
- 239000000945 filler Substances 0.000 claims abstract description 25
- -1 polypropylene Polymers 0.000 claims abstract description 25
- 229920001155 polypropylene Polymers 0.000 claims abstract description 25
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical class S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 22
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 19
- 229920002292 Nylon 6 Polymers 0.000 claims abstract description 14
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 9
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 9
- 239000000314 lubricant Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000004677 Nylon Substances 0.000 claims abstract description 3
- 229920001778 nylon Polymers 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 40
- 238000003756 stirring Methods 0.000 claims description 35
- 238000002791 soaking Methods 0.000 claims description 31
- 238000001035 drying Methods 0.000 claims description 28
- 238000001914 filtration Methods 0.000 claims description 28
- 239000011812 mixed powder Substances 0.000 claims description 23
- 238000005406 washing Methods 0.000 claims description 21
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 18
- 238000001125 extrusion Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000008367 deionised water Substances 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 13
- VHSCQANAKTXZTG-UHFFFAOYSA-N 1,1,1-trifluoro-2-(trifluoromethyl)pent-4-en-2-ol Chemical compound FC(F)(F)C(C(F)(F)F)(O)CC=C VHSCQANAKTXZTG-UHFFFAOYSA-N 0.000 claims description 11
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 11
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 10
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 claims description 9
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 9
- 238000005469 granulation Methods 0.000 claims description 9
- 230000003179 granulation Effects 0.000 claims description 9
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 9
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 claims description 9
- 229910017604 nitric acid Inorganic materials 0.000 claims description 9
- 239000012286 potassium permanganate Substances 0.000 claims description 9
- 235000021355 Stearic acid Nutrition 0.000 claims description 7
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 7
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 7
- 239000008117 stearic acid Substances 0.000 claims description 7
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 6
- 230000035484 reaction time Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 claims description 3
- OKOBUGCCXMIKDM-UHFFFAOYSA-N Irganox 1098 Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 OKOBUGCCXMIKDM-UHFFFAOYSA-N 0.000 claims description 3
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 239000001993 wax Substances 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims 1
- 239000012745 toughening agent Substances 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 22
- 239000000463 material Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000004801 Chlorinated PVC Substances 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 5
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229910021389 graphene Inorganic materials 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 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 description 1
- GFABGVSRKCKLKA-ONBPZOJHSA-N 2-[(2s,5r)-5-[(1r)-2-[4-(2-benzamidoethyl)phenoxy]-1-hydroxyethyl]-5-methyloxolan-2-yl]propan-2-yl acetate Chemical compound O1[C@H](C(C)(C)OC(=O)C)CC[C@]1(C)[C@H](O)COC(C=C1)=CC=C1CCNC(=O)C1=CC=CC=C1 GFABGVSRKCKLKA-ONBPZOJHSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
- 238000003466 welding Methods 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
- C08L23/02—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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
-
- 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
- C08L2203/18—Applications used for pipes
-
- 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
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Insulated Conductors (AREA)
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a cable protection tube, which comprises the following raw materials in parts by weight: 100 parts of polypropylene, 6-20 parts of nylon, 10-15 parts of modified antiwear agent, 0.5-2 parts of antioxidant, 5-10 parts of compatilizer, 5-10 parts of modified heat-resistant filler and 2-6 parts of lubricant. By adding nylon 6 as a toughening agent, the shock resistance of polypropylene is effectively improved, and meanwhile, a compatilizer is added, so that the nylon 6 and the polypropylene have good compatibility, and the modified molybdenum disulfide, silicon carbide and boron nitride not only improve the heat resistance of the cable protection tube, but also improve the compatibility with the polypropylene due to the introduction of long-chain groups, so that the cable protection tube has good mechanical properties.
Description
Technical Field
The invention belongs to the technical field of cable protection tube materials, and particularly relates to a cable protection tube.
Background
The power cable is an important carrier for transmitting and distributing electric energy, has been widely applied in the power industry, no matter how the power cable looks inside a power plant, a transmission network, a distribution network and various factories, the power cable is adopted for transmitting and distributing electric energy, the reliability of power supply can be improved, and the beauty of the environment is improved. In the fields of luxury cities and dense power supply, the power cable has incomparable superiority, is an irreplaceable overhead line, and has increasingly important roles in power transmission and distribution along with the development of economy.
The wire and cable are used in different environments or occasions, and have different requirements, so that the wire and cable has higher requirements on a cable protection tube coated outside the cable, and has the advantages of high corrosion resistance, high strength, small inner wall friction coefficient, excellent electrical insulation, heat conductivity, heat resistance, convenience in construction and the like.
There are two types of cable protection pipes commonly used, namely non-excavation modified polypropylene (MPP) pipes and chlorinated polyvinyl chloride (CPVC) pipes. The non-excavation modified polypropylene pipe is a stable composite material formed by taking polypropylene resin as a main body, adding other polyolefin, a small amount of antioxidant, a stabilizer necessary for prolonging service life, an additive beneficial to improving mechanical and processing properties of a catheter and the like. The chlorinated polyvinyl chloride pipe is a plastic cable pipe with a solid wall structure, which is formed by taking chlorinated polyvinyl chloride resin and polyvinyl chloride resin as main materials, adding additives which are favorable for improving the mechanical property and the processing performance of the pipe and extruding and molding the pipe in a mould at a certain temperature and under a certain pressure. The MPP pipe is welded by hot melting, the welding head has high strength, can be used for ultra-long high-traction towing pipe, has good toughness, has excellent stratum settlement resistance and earthquake resistance, and overcomes the defects that the CPVC pipe has poor stratum settlement resistance and cannot be used for high-traction towing pipe. But the wear resistance and the heat resistance are poor, especially in the prior art, underground pipelines mostly adopt a non-excavation laying method, and the pipeline and underground sand stone or soil inevitably need to be rubbed due to the traction of a machine in the construction process, so that irreversible abrasion is caused on the pipeline, and the service life of the pipeline is influenced.
The Chinese patent application number 201910364226.2 discloses a high-strength MPP material, a preparation method thereof and a prepared cable protection tube, and the MPP material comprises the following raw materials in parts by weight: 80-100 parts of modified acrylic resin, 2-6 parts of graphene A, 4-8 parts of carbon black, 1-5 parts of coupling agent, 5-10 parts of toughening agent, 0.5-2 parts of antioxidant and 0.5-1.5 parts of nano calcium carbonate; the graphene A is an oligolayer graphene oxide, the oxygen content is 20-40wt%, and the cable protection tube has excellent strength, impact resistance and high heat resistance. Chinese patent application No. 201911115695.7 discloses a high wear-resistant flame-retardant modified polypropylene cable protection tube and a preparation method thereof, the invention adopts self-made nano spherical Al 2 O 3 The grafted palm fiber is used as an antiwear agent, and nano spherical Al is grafted on the surface of the palm fiber by utilizing the characteristics of high strength and high toughness of the palm fiber 2 O 3 The wear-resistant agent with a ball structure is formed, and meanwhile, the ultra-high molecular weight polyethylene powder is compounded, so that the wear resistance of the material is effectively improved.
The modified polypropylene material of the above patent has excellent mechanical strength and hardness, and is excellent in rigidity, abrasion resistance and bending resistance, but its overall comprehensive properties such as small inner wall friction coefficient, electrical insulation, thermal conductivity, heat resistance, impact resistance and the like still have room for improvement.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a cable protection tube which has the advantages of good wear resistance, good mechanical property, good electrical insulation, good thermal conductivity, good heat resistance, small friction coefficient and the like, and has good application prospect in the cable protection tube.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the cable protection tube comprises the following raw materials in parts by weight:
100 parts of polypropylene, 6-20 parts of nylon, 10-15 parts of modified antiwear agent, 0.5-2 parts of antioxidant, 5-10 parts of compatilizer, 5-10 parts of modified heat-resistant filler and 2-6 parts of lubricant.
Preferably, the compatilizer is maleic anhydride grafted polypropylene, the antioxidant is one or more of antioxidant 1010, antioxidant 2246, antioxidant 1098 and antioxidant 168, and the lubricant is one or more of PP wax, stearic acid and paraffin wax.
Preferably, the preparation method of the modified antiwear agent comprises the following steps:
(a) Adding molybdenum disulfide and silicon carbide into potassium permanganate solution for soaking, adding cetyltrimethylammonium bromide after the soaking is finished, performing heating reaction, and filtering, washing and drying after the reaction is finished to obtain mixed powder;
(b) Adding the mixed powder in the step (a) into deionized water, then adding maleic anhydride, 2-allylhexafluoroisopropanol and ferric trichloride, carrying out constant temperature reaction, and filtering, washing and drying after the reaction is finished to obtain the modified antiwear agent.
Preferably, the mass concentration of the potassium permanganate solution in the step (a) is 5-8%; the temperature of the soaking is 30-40 ℃ and the time is 2-3h; the mass ratio of the molybdenum disulfide to the silicon carbide to the hexadecyl trimethyl ammonium bromide is 50:30-50:3-5; the temperature of the heating reaction is 50-70 ℃ and the reaction time is 2-4h.
Preferably, the mass ratio of the mixed powder, maleic anhydride, 2-allylhexafluoroisopropanol and ferric trichloride in the step (b) is 50:10-20:20-30:0.1-0.2; the temperature of the constant temperature reaction is 90-100 ℃ and the reaction time is 4-6h.
Preferably, the preparation method of the modified heat-resistant filler comprises the following steps:
s1, adding boron nitride into a nitric acid solution, stirring and soaking at normal temperature, and filtering and drying after soaking to obtain pretreated boron nitride;
s2, adding the pretreated boron nitride in the step S1 into deionized water, then adding gamma-mercaptopropyl trimethoxy silane, stirring for reaction, and filtering, washing and drying after the reaction is finished to obtain the modified heat-resistant filler.
Preferably, the mass fraction of the nitric acid solution in the step S1 is 10-15%, and the soaking time is 2-4h.
Preferably, in the step S2, the mass ratio of the pretreated boron nitride to the gamma-mercaptopropyl trimethoxysilane is 100:3-6; the temperature of the stirring reaction is 60-80 ℃, and the reaction time is 3-5h.
The invention also provides a preparation method of the cable protection tube, which comprises the following steps:
(1) Sequentially adding polypropylene, nylon 6, modified antiwear agent, antioxidant, compatilizer, modified heat-resistant filler and lubricant into a high-speed mixer according to the proportion, and uniformly stirring at normal temperature to obtain premix;
(2) Adding the premix in the step (1) into a double-screw extruder for extrusion granulation to obtain cable protection tube master batch;
(3) And (3) adding the cable protection tube master batch in the step (2) into a hopper of a pipe extruder, and obtaining the cable protection tube after extrusion molding.
Preferably, in the step (1), the stirring speed is 200-300r/min, and the stirring time is 20-40min; the process of the twin-screw extruder in the step (2) is as follows: the temperature of the first area is 190-210 ℃, the temperature of the second area is 220-245 ℃, the temperature of the third area is 235-255 ℃, the temperature of the fourth area is 260-280 ℃, the temperature of the fifth area is 250-260 ℃, and the temperature of the die head is 240-250 ℃; the process of the pipe extruder in the step (3) is as follows: the temperature of the cylinder 1 zone is 200-220 ℃, the temperature of the cylinder 2 zone is 230-250 ℃, the temperature of the cylinder 3 zone is 260-290 ℃, the temperature of the cylinder 4 zone is 260-280 ℃, the temperature of the cylinder 5 zone is 250-260 ℃ and the temperature of the die head is 240-250 ℃.
Compared with the prior art, the invention has the following beneficial effects:
(1) The main raw materials of the modified antiwear agent of the cable protection pipe prepared by the invention are molybdenum disulfide and silicon carbide, the molybdenum disulfide has a special layered structure, and all layers are mutually connected by extremely tiny molecular force, moS 2 Is easily separated from layer to layer and thus has good lubricationThe silicon carbide has high hardness, excellent heat conduction performance and heat resistance, good wear resistance and can be used as an antiwear material; the molybdenum disulfide and the silicon carbide are modified, the molybdenum disulfide and the silicon carbide are firstly subjected to oxidation activation, the number of groups on the surface is increased, the subsequent reaction is facilitated, then the hexadecyl trimethyl ammonium bromide is used for improving the molybdenum disulfide, the interlayer distance of the molybdenum disulfide is increased, the dispersibility of the molybdenum disulfide in a polypropylene material can also be improved, then maleic anhydride and 2-allylhexafluoroisopropanol are reacted with mixed powder, maleic anhydride is dissolved in water at normal temperature to generate maleic acid, the maleic acid is easy to react with hydroxyl groups in the 2-allylhexafluoroisopropanol, the residual carboxyl groups and hydroxyl groups on the surface of the mixed powder form hydrogen bonds, and the surfaces of the mixed powder are directionally coated with the residual carboxyl groups and the hydroxyl groups on the surface of the mixed powder, so that double bonds and fluorine atoms are introduced to the surface of the mixed powder; the sulfydryl is introduced to the surface of the boron nitride through sulfydryl reaction, double bonds in the modified wear-resistant agent react with sulfydryl in the modified heat-resistant filler in the subsequent processing process to form a heat-conducting net chain, and the heat-conducting net chain and the double bonds produce synergistic effect to improve the heat-conducting performance of the cable protection tube, and fluorine atoms contained on the surfaces of molybdenum disulfide and silicon carbide are easy to migrate to the surface, so that the wear resistance of the surface is improved, and the friction coefficient of the surface of the cable protection tube is reduced.
(2) According to the cable protection tube prepared by the invention, the nylon 6 is added as the toughening agent, so that the impact resistance of polypropylene is effectively improved, and meanwhile, the compatilizer is added, so that the nylon 6 and the polypropylene have good compatibility, and the modified molybdenum disulfide, silicon carbide and boron nitride can improve the heat conductivity and heat resistance of the cable protection tube on one hand, and can improve the compatibility with the polypropylene due to the introduction of long-chain groups on the other hand, so that the cable protection tube has good mechanical properties.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The polypropylene is purchased from Shanghai Shunkin plasticizing Co., ltd, and the brand name is Korea dawn HB240P; the nylon 6 is purchased from Lorentvia plasticization Co., ltd., suzhou, under the trade name Japanese UBE 1015B; the mesh number of the molybdenum disulfide is 325 meshes; the mesh number of the silicon carbide is 800 mesh; the mesh number of the boron nitride is 1000 meshes.
Example 1
The preparation method of the cable protection tube comprises the following steps:
(1) 10kg of polypropylene, 2kg of nylon 6, 1.5kg of modified antiwear agent, 200g of antioxidant 1010, 1kg of maleic anhydride grafted polypropylene, 1kg of modified heat-resistant filler and 0.6kg of stearic acid are sequentially added into a high-speed mixer according to the proportion, and uniformly stirred at normal temperature, wherein the stirring speed is 250r/min and the stirring time is 30min, so as to obtain a premix;
(2) Adding the premix in the step (1) into a double-screw extruder for extrusion granulation, wherein the double-screw extruder comprises the following steps: the temperature of the first area is 200 ℃, the temperature of the second area is 230 ℃, the temperature of the third area is 250 ℃, the temperature of the fourth area is 270 ℃, the temperature of the fifth area is 255 ℃, and the temperature of the die head is 245 ℃, so as to obtain the master batch of the cable protection tube;
(3) Adding the cable protection tube master batch in the step (2) into a hopper of a tube extruder, wherein the process of the tube extruder comprises the following steps: the temperature of the cylinder 1 area is 210 ℃, the temperature of the cylinder 2 area is 240 ℃, the temperature of the cylinder 3 area is 270 ℃, the temperature of the cylinder 4 area is 265 ℃, the temperature of the cylinder 5 area is 255 ℃, the temperature of the die head is 245 ℃, and the cable protecting pipe is obtained after extrusion molding.
The preparation method of the modified antiwear agent comprises the following steps:
(a) Adding 50g of molybdenum disulfide and 50g of silicon carbide into a potassium permanganate solution with the mass concentration of 8%, soaking at the temperature of 40 ℃ for 2 hours, adding 5g of cetyltrimethylammonium bromide after the soaking is finished, reacting for 2 hours at 70 ℃, and filtering, washing and drying after the reaction is finished to obtain mixed powder;
(b) Adding 50g of the mixed powder in the step (a) into 500mL of deionized water, then adding 20g of maleic anhydride, 30g of 2-allylhexafluoroisopropanol and 0.2g of ferric trichloride, reacting at a constant temperature of 100 ℃ for 4 hours, and filtering, washing and drying after the reaction is completed to obtain the modified antiwear agent.
The preparation method of the modified heat-resistant filler comprises the following steps:
s1, adding 100g of boron nitride into a nitric acid solution with the mass fraction of 15%, stirring and soaking for 2 hours at normal temperature, and filtering and drying after soaking to obtain pretreated boron nitride;
s2, adding 100g of pretreated boron nitride in the step S1 into 800mL of deionized water, then adding 6g of gamma-mercaptopropyl trimethoxysilane, stirring at 80 ℃ for reaction for 3 hours, and filtering, washing and drying after the reaction is completed to obtain the modified heat-resistant filler.
Example 2
The preparation method of the cable protection tube comprises the following steps:
(1) Sequentially adding 10kg of polypropylene, 1.5kg of nylon 6, 1.2kg of modified antiwear agent, 100g of antioxidant 2246, 0.7kg of maleic anhydride grafted polypropylene, 0.7kg of modified heat-resistant filler and 0.4kg of paraffin into a high-speed mixer according to the proportion, uniformly stirring at normal temperature at the stirring speed of 250r/min for 30min to obtain a premix;
(2) Adding the premix in the step (1) into a double-screw extruder for extrusion granulation, wherein the double-screw extruder comprises the following steps: the temperature of the first area is 200 ℃, the temperature of the second area is 230 ℃, the temperature of the third area is 250 ℃, the temperature of the fourth area is 270 ℃, the temperature of the fifth area is 255 ℃, and the temperature of the die head is 245 ℃, so as to obtain the master batch of the cable protection tube;
(3) Adding the cable protection tube master batch in the step (2) into a hopper of a tube extruder, wherein the process of the tube extruder comprises the following steps: the temperature of the cylinder 1 area is 210 ℃, the temperature of the cylinder 2 area is 240 ℃, the temperature of the cylinder 3 area is 270 ℃, the temperature of the cylinder 4 area is 265 ℃, the temperature of the cylinder 5 area is 255 ℃, the temperature of the die head is 245 ℃, and the cable protecting pipe is obtained after extrusion molding.
The preparation method of the modified antiwear agent comprises the following steps:
(a) Adding 50g of molybdenum disulfide and 40g of silicon carbide into a potassium permanganate solution with the mass concentration of 6%, soaking at the temperature of 35 ℃ for 3 hours, adding 4g of cetyltrimethylammonium bromide after the soaking is finished, reacting for 3 hours at 60 ℃, and filtering, washing and drying after the reaction is finished to obtain mixed powder;
(b) Adding 50g of the mixed powder in the step (a) into 500mL of deionized water, then adding 15g of maleic anhydride, 25g of 2-allylhexafluoroisopropanol and 0.15g of ferric trichloride, reacting at a constant temperature of 95 ℃ for 5 hours, and filtering, washing and drying after the reaction is completed to obtain the modified antiwear agent.
The preparation method of the modified heat-resistant filler comprises the following steps:
s1, adding 100g of boron nitride into a nitric acid solution with the mass fraction of 15%, stirring and soaking for 3 hours at normal temperature, and filtering and drying after soaking to obtain pretreated boron nitride;
s2, adding 100g of pretreated boron nitride in the step S1 into 800mL of deionized water, then adding 4g of gamma-mercaptopropyl trimethoxysilane, stirring at 70 ℃ for reaction for 4 hours, and filtering, washing and drying after the reaction is completed to obtain the modified heat-resistant filler.
Example 3
The preparation method of the cable protection tube comprises the following steps:
(1) 10kg of polypropylene, 1.5kg of nylon 6, 1.3kg of modified antiwear agent, 150g of antioxidant 1098, 0.8kg of maleic anhydride grafted polypropylene, 0.8kg of modified heat-resistant filler and 0.5kg of stearic acid are sequentially added into a high-speed mixer according to the proportion, and uniformly stirred at normal temperature at the stirring speed of 250r/min for 30min to obtain a premix;
(2) Adding the premix in the step (1) into a double-screw extruder for extrusion granulation, wherein the double-screw extruder comprises the following steps: the temperature of the first area is 200 ℃, the temperature of the second area is 230 ℃, the temperature of the third area is 250 ℃, the temperature of the fourth area is 270 ℃, the temperature of the fifth area is 255 ℃, and the temperature of the die head is 245 ℃, so as to obtain the master batch of the cable protection tube;
(3) Adding the cable protection tube master batch in the step (2) into a hopper of a tube extruder, wherein the process of the tube extruder comprises the following steps: the temperature of the cylinder 1 area is 210 ℃, the temperature of the cylinder 2 area is 240 ℃, the temperature of the cylinder 3 area is 270 ℃, the temperature of the cylinder 4 area is 265 ℃, the temperature of the cylinder 5 area is 255 ℃, the temperature of the die head is 245 ℃, and the cable protecting pipe is obtained after extrusion molding.
The preparation method of the modified antiwear agent comprises the following steps:
(a) Adding 50g of molybdenum disulfide and 40g of silicon carbide into a potassium permanganate solution with the mass concentration of 7%, soaking at the temperature of 35 ℃ for 2 hours, adding 4g of cetyltrimethylammonium bromide after the soaking is finished, reacting for 3 hours at 60 ℃, and filtering, washing and drying after the reaction is finished to obtain mixed powder;
(b) Adding 50g of the mixed powder in the step (a) into 500mL of deionized water, then adding 15g of maleic anhydride, 25g of 2-allylhexafluoroisopropanol and 0.15g of ferric trichloride, reacting at a constant temperature of 95 ℃ for 5 hours, and filtering, washing and drying after the reaction is completed to obtain the modified antiwear agent.
The preparation method of the modified heat-resistant filler comprises the following steps:
s1, adding 100g of boron nitride into a nitric acid solution with the mass fraction of 10%, stirring and soaking for 3 hours at normal temperature, and filtering and drying after soaking to obtain pretreated boron nitride;
s2, adding 100g of pretreated boron nitride in the step S1 into 800mL of deionized water, then adding 5g of gamma-mercaptopropyl trimethoxysilane, stirring at 70 ℃ for reaction for 4 hours, and filtering, washing and drying after the reaction is completed to obtain the modified heat-resistant filler.
Example 4
The preparation method of the cable protection tube comprises the following steps:
(1) Sequentially adding 10kg of polypropylene, 1.5kg of nylon 6, 1kg of modified antiwear agent, 50g of antioxidant 168, 0.5kg of maleic anhydride grafted polypropylene, 0.5kg of modified heat-resistant filler and 0.2kg of PP wax into a high-speed mixer according to the proportion, uniformly stirring at normal temperature at the stirring speed of 250r/min for 30min to obtain a premix;
(2) Adding the premix in the step (1) into a double-screw extruder for extrusion granulation, wherein the double-screw extruder comprises the following steps: the temperature of the first area is 200 ℃, the temperature of the second area is 230 ℃, the temperature of the third area is 250 ℃, the temperature of the fourth area is 270 ℃, the temperature of the fifth area is 255 ℃, and the temperature of the die head is 245 ℃, so as to obtain the master batch of the cable protection tube;
(3) Adding the cable protection tube master batch in the step (2) into a hopper of a tube extruder, wherein the process of the tube extruder comprises the following steps: the temperature of the cylinder 1 area is 210 ℃, the temperature of the cylinder 2 area is 240 ℃, the temperature of the cylinder 3 area is 270 ℃, the temperature of the cylinder 4 area is 265 ℃, the temperature of the cylinder 5 area is 255 ℃, the temperature of the die head is 245 ℃, and the cable protecting pipe is obtained after extrusion molding.
The preparation method of the modified antiwear agent comprises the following steps:
(a) Adding 50g of molybdenum disulfide and 30g of silicon carbide into a potassium permanganate solution with the mass concentration of 5%, soaking at the temperature of 30 ℃ for 3 hours, adding 3g of cetyltrimethylammonium bromide after the soaking is finished, reacting for 4 hours at 50 ℃, and filtering, washing and drying after the reaction is finished to obtain mixed powder;
(b) Adding 50g of the mixed powder in the step (a) into 500mL of deionized water, then adding 10g of maleic anhydride, 20g of 2-allylhexafluoroisopropanol and 0.1g of ferric trichloride, reacting at a constant temperature of 90 ℃ for 6 hours, and filtering, washing and drying after the reaction is completed to obtain the modified antiwear agent.
The preparation method of the modified heat-resistant filler comprises the following steps:
s1, adding 100g of boron nitride into a nitric acid solution with the mass fraction of 10%, stirring and soaking for 4 hours at normal temperature, and filtering and drying after soaking to obtain pretreated boron nitride;
s2, adding 100g of pretreated boron nitride in the step S1 into 800mL of deionized water, then adding 3g of gamma-mercaptopropyl trimethoxysilane, stirring at 60 ℃ for reaction for 5 hours, and filtering, washing and drying after the reaction is completed to obtain the modified heat-resistant filler.
Comparative example 1
The preparation method of the cable protection tube comprises the following steps:
(1) Sequentially adding 10kg of polypropylene, 2kg of nylon 6, 1.5kg of modified antiwear agent, 200g of antioxidant 1010, 1kg of maleic anhydride grafted polypropylene, 1kg of boron nitride and 0.6kg of stearic acid into a high-speed mixer according to the proportion, uniformly stirring at normal temperature at the stirring speed of 250r/min for 30min to obtain a premix;
(2) Adding the premix in the step (1) into a double-screw extruder for extrusion granulation, wherein the double-screw extruder comprises the following steps: the temperature of the first area is 200 ℃, the temperature of the second area is 230 ℃, the temperature of the third area is 250 ℃, the temperature of the fourth area is 270 ℃, the temperature of the fifth area is 255 ℃, and the temperature of the die head is 245 ℃, so as to obtain the master batch of the cable protection tube;
(3) Adding the cable protection tube master batch in the step (2) into a hopper of a tube extruder, wherein the process of the tube extruder comprises the following steps: the temperature of the cylinder 1 area is 210 ℃, the temperature of the cylinder 2 area is 240 ℃, the temperature of the cylinder 3 area is 270 ℃, the temperature of the cylinder 4 area is 265 ℃, the temperature of the cylinder 5 area is 255 ℃, the temperature of the die head is 245 ℃, and the cable protecting pipe is obtained after extrusion molding.
The preparation method of the modified antiwear agent comprises the following steps:
(a) Adding 50g of molybdenum disulfide and 50g of silicon carbide into a potassium permanganate solution with the mass concentration of 8%, soaking at the temperature of 40 ℃ for 2 hours, adding 5g of cetyltrimethylammonium bromide after the soaking is finished, reacting for 2 hours at 70 ℃, and filtering, washing and drying after the reaction is finished to obtain mixed powder;
(b) Adding 50g of the mixed powder in the step (a) into 500mL of deionized water, then adding 20g of maleic anhydride, 30g of 2-allylhexafluoroisopropanol and 0.2g of ferric trichloride, reacting at a constant temperature of 100 ℃ for 4 hours, and filtering, washing and drying after the reaction is completed to obtain the modified antiwear agent.
Comparative example 2
The preparation method of the cable protection tube comprises the following steps:
(1) 10kg of polypropylene, 2kg of nylon 6, 1.5kg of modified antiwear agent, 200g of antioxidant 1010, 1kg of maleic anhydride grafted polypropylene, 1kg of modified heat-resistant filler and 0.6kg of stearic acid are sequentially added into a high-speed mixer according to the proportion, and uniformly stirred at normal temperature, wherein the stirring speed is 250r/min and the stirring time is 30min, so as to obtain a premix;
(2) Adding the premix in the step (1) into a double-screw extruder for extrusion granulation, wherein the double-screw extruder comprises the following steps: the temperature of the first area is 200 ℃, the temperature of the second area is 230 ℃, the temperature of the third area is 250 ℃, the temperature of the fourth area is 270 ℃, the temperature of the fifth area is 255 ℃, and the temperature of the die head is 245 ℃, so as to obtain the master batch of the cable protection tube;
(3) Adding the cable protection tube master batch in the step (2) into a hopper of a tube extruder, wherein the process of the tube extruder comprises the following steps: the temperature of the cylinder 1 area is 210 ℃, the temperature of the cylinder 2 area is 240 ℃, the temperature of the cylinder 3 area is 270 ℃, the temperature of the cylinder 4 area is 265 ℃, the temperature of the cylinder 5 area is 255 ℃, the temperature of the die head is 245 ℃, and the cable protecting pipe is obtained after extrusion molding.
The modified antiwear agent is mixed powder of molybdenum disulfide and silicon carbide in a mass ratio of 1:1.
The preparation method of the modified heat-resistant filler comprises the following steps:
s1, adding 100g of boron nitride into a nitric acid solution with the mass fraction of 15%, stirring and soaking for 2 hours at normal temperature, and filtering and drying after soaking to obtain pretreated boron nitride;
s2, adding 100g of pretreated boron nitride in the step S1 into 800mL of deionized water, then adding 6g of gamma-mercaptopropyl trimethoxysilane, stirring at 80 ℃ for reaction for 3 hours, and filtering, washing and drying after the reaction is completed to obtain the modified heat-resistant filler.
Comparative example 3
The preparation method of the cable protection tube comprises the following steps:
(1) Sequentially adding 10kg of polypropylene, 2kg of nylon 6, 1.5kg of modified antiwear agent, 200g of antioxidant 1010, 1kg of maleic anhydride grafted polypropylene, 1kg of boron nitride and 0.6kg of stearic acid into a high-speed mixer according to the proportion, uniformly stirring at normal temperature at the stirring speed of 250r/min for 30min to obtain a premix;
(2) Adding the premix in the step (1) into a double-screw extruder for extrusion granulation, wherein the double-screw extruder comprises the following steps: the temperature of the first area is 200 ℃, the temperature of the second area is 230 ℃, the temperature of the third area is 250 ℃, the temperature of the fourth area is 270 ℃, the temperature of the fifth area is 255 ℃, and the temperature of the die head is 245 ℃, so as to obtain the master batch of the cable protection tube;
(3) Adding the cable protection tube master batch in the step (2) into a hopper of a tube extruder, wherein the process of the tube extruder comprises the following steps: the temperature of the cylinder 1 area is 210 ℃, the temperature of the cylinder 2 area is 240 ℃, the temperature of the cylinder 3 area is 270 ℃, the temperature of the cylinder 4 area is 265 ℃, the temperature of the cylinder 5 area is 255 ℃, the temperature of the die head is 245 ℃, and the cable protecting pipe is obtained after extrusion molding.
The modified antiwear agent is mixed powder of molybdenum disulfide and silicon carbide in a mass ratio of 1:1.
The cable protection pipes obtained in examples 1 to 4 and comparative examples 1 to 3 were subjected to performance test, and the test results are shown in table 1 below:
TABLE 1
| Tensile Strength/MPa | Flexural Strength/MPa | Mass abrasion/mg | Heat distortion temperature/°c | Thermal conductivity W/(m.K) | |
| Example 1 | 58.2 | 69.2 | 16.3 | 136 | 1.68 |
| Example 2 | 57.5 | 67.9 | 17.5 | 132 | 1.56 |
| Example 3 | 57.1 | 68.7 | 17.1 | 127 | 1.63 |
| Example 4 | 56.8 | 67.5 | 18.2 | 129 | 1.52 |
| Comparative example 1 | 48.3 | 62.6 | 24.8 | 117 | 1.62 |
| Comparative example 2 | 47.5 | 60.9 | 36.1 | 119 | 1.59 |
| Comparative example 3 | 44.8 | 58.8 | 39.4 | 113 | 1.54 |
The smaller the mass wear, the better the wear resistance.
Wherein the tensile strength is carried out according to GB/T1040.2-2022, the sample is of type 1A, and the test speed is 50mm/min; flexural strength was carried out according to GB/T9341-2008; the mass abrasion is carried out according to GB/T3960-2016 method for testing sliding friction and abrasion of plastics; the heat distortion temperature is carried out according to ASTM D-648, the sample size is 120mm multiplied by 10mm multiplied by 4mm, the load is 0.45MPa, and the heating rate is 2 ℃/min; the thermal conductivity is according to ASTM-5470.
As can be seen from the data in the table, the cable protection tube prepared by the invention has good tensile strength and bending property, also has excellent wear resistance, has higher thermal deformation temperature, is not easy to deform after being heated, has better heat conductivity coefficient, can effectively radiate heat in the cable, and has good application prospect.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The cable protection tube is characterized by comprising the following raw materials in parts by weight: 100 parts of polypropylene, 6-20 parts of nylon, 10-15 parts of modified antiwear agent, 0.5-2 parts of antioxidant, 5-10 parts of compatilizer, 5-10 parts of modified heat-resistant filler and 2-6 parts of lubricant.
2. The cable protection tube of claim 1, wherein the compatilizer is maleic anhydride grafted polypropylene, the antioxidant is one or more of antioxidant 1010, antioxidant 2246, antioxidant 1098 and antioxidant 168, and the lubricant is one or more of PP wax, stearic acid and paraffin wax.
3. The cable protection tube of claim 1, wherein the method for preparing the modified antiwear agent comprises the following steps:
(a) Adding molybdenum disulfide and silicon carbide into potassium permanganate solution for soaking, adding cetyltrimethylammonium bromide after the soaking is finished, performing heating reaction, and filtering, washing and drying after the reaction is finished to obtain mixed powder;
(b) Adding the mixed powder in the step (a) into deionized water, then adding maleic anhydride, 2-allylhexafluoroisopropanol and ferric trichloride, carrying out constant temperature reaction, and filtering, washing and drying after the reaction is finished to obtain the modified antiwear agent.
4. A cable protection tube according to claim 3, wherein the potassium permanganate solution in step (a) has a mass concentration of 5-8%; the temperature of the soaking is 30-40 ℃ and the time is 2-3h; the mass ratio of the molybdenum disulfide to the silicon carbide to the hexadecyl trimethyl ammonium bromide is 50:30-50:3-5; the temperature of the heating reaction is 50-70 ℃ and the reaction time is 2-4h.
5. A cable protection tube according to claim 3, wherein the mass ratio of the mixed powder, maleic anhydride, 2-allylhexafluoroisopropanol, and ferric trichloride in step (b) is 50:10-20:20-30:0.1-0.2; the temperature of the constant temperature reaction is 90-100 ℃ and the reaction time is 4-6h.
6. The cable protection tube of claim 1, wherein the method of preparing the modified heat resistant filler comprises the steps of:
s1, adding boron nitride into a nitric acid solution, stirring and soaking at normal temperature, and filtering and drying after soaking to obtain pretreated boron nitride;
s2, adding the pretreated boron nitride in the step S1 into deionized water, then adding gamma-mercaptopropyl trimethoxy silane, stirring for reaction, and filtering, washing and drying after the reaction is finished to obtain the modified heat-resistant filler.
7. The cable protection tube according to claim 6, wherein the nitric acid solution in the step S1 has a mass fraction of 10-15% and the dipping time is 2-4 hours.
8. The cable protection tube according to claim 6, wherein the mass ratio of the pretreated boron nitride to the gamma-mercaptopropyl trimethoxysilane in the step S2 is 100:3-6; the temperature of the stirring reaction is 60-80 ℃, and the reaction time is 3-5h.
9. A method of producing a cable protection tube according to any one of claims 1 to 8, comprising the steps of:
(1) Sequentially adding polypropylene, nylon 6, modified antiwear agent, antioxidant, compatilizer, modified heat-resistant filler and lubricant into a high-speed mixer according to the proportion, and uniformly stirring at normal temperature to obtain premix;
(2) Adding the premix in the step (1) into a double-screw extruder for extrusion granulation to obtain cable protection tube master batch;
(3) And (3) adding the cable protection tube master batch in the step (2) into a hopper of a pipe extruder, and obtaining the cable protection tube after extrusion molding.
10. The method according to claim 9, wherein the stirring speed in the step (1) is 200-300r/min and the stirring time is 20-40min; the process of the twin-screw extruder in the step (2) is as follows: the temperature of the first area is 190-210 ℃, the temperature of the second area is 220-245 ℃, the temperature of the third area is 235-255 ℃, the temperature of the fourth area is 260-280 ℃, the temperature of the fifth area is 250-260 ℃, and the temperature of the die head is 240-250 ℃; the process of the pipe extruder in the step (3) is as follows: the temperature of the cylinder 1 zone is 200-220 ℃, the temperature of the cylinder 2 zone is 230-250 ℃, the temperature of the cylinder 3 zone is 260-290 ℃, the temperature of the cylinder 4 zone is 260-280 ℃, the temperature of the cylinder 5 zone is 250-260 ℃ and the temperature of the die head is 240-250 ℃.
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| CN103044753A (en) * | 2013-01-16 | 2013-04-17 | 合肥杰事杰新材料股份有限公司 | Abrasion-resistant composite material and preparation method thereof |
| CN106397937A (en) * | 2016-10-18 | 2017-02-15 | 安徽福日光电科技有限公司 | Cable material added with graphite and molybdenum disulfide to enhance lubricating property and wear resistance |
| CN112778755A (en) * | 2020-12-28 | 2021-05-11 | 杭州本松新材料技术股份有限公司 | High-filling heat-conducting PA/PP composite material and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044753A (en) * | 2013-01-16 | 2013-04-17 | 合肥杰事杰新材料股份有限公司 | Abrasion-resistant composite material and preparation method thereof |
| CN106397937A (en) * | 2016-10-18 | 2017-02-15 | 安徽福日光电科技有限公司 | Cable material added with graphite and molybdenum disulfide to enhance lubricating property and wear resistance |
| CN112778755A (en) * | 2020-12-28 | 2021-05-11 | 杭州本松新材料技术股份有限公司 | High-filling heat-conducting PA/PP composite material and application thereof |
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