CN106147021A - The self limiting temperature accompanying-heat cable material that a kind of liter of high-temperature is fast - Google Patents
The self limiting temperature accompanying-heat cable material that a kind of liter of high-temperature is fast Download PDFInfo
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- CN106147021A CN106147021A CN201610521939.1A CN201610521939A CN106147021A CN 106147021 A CN106147021 A CN 106147021A CN 201610521939 A CN201610521939 A CN 201610521939A CN 106147021 A CN106147021 A CN 106147021A
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- 239000000463 material Substances 0.000 title claims abstract description 43
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 230000004888 barrier function Effects 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 15
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims description 14
- 229920002472 Starch Polymers 0.000 claims description 13
- 239000008107 starch Substances 0.000 claims description 13
- 235000019698 starch Nutrition 0.000 claims description 13
- 238000001125 extrusion Methods 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 12
- 238000007127 saponification reaction Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000004743 Polypropylene Substances 0.000 claims description 9
- 239000008187 granular material Substances 0.000 claims description 9
- -1 polypropylene Polymers 0.000 claims description 9
- 229920001155 polypropylene Polymers 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000002105 nanoparticle Substances 0.000 claims description 7
- 229910001152 Bi alloy Inorganic materials 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- MKJXYGKVIBWPFZ-UHFFFAOYSA-L calcium lactate Chemical compound [Ca+2].CC(O)C([O-])=O.CC(O)C([O-])=O MKJXYGKVIBWPFZ-UHFFFAOYSA-L 0.000 claims description 6
- 229960002401 calcium lactate Drugs 0.000 claims description 6
- 239000001527 calcium lactate Substances 0.000 claims description 6
- 235000011086 calcium lactate Nutrition 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 239000002243 precursor Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 6
- IFRDBGYJSLDMHQ-UHFFFAOYSA-J magnesium;disodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate;hydrate Chemical compound O.[Na+].[Na+].[Mg+2].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O IFRDBGYJSLDMHQ-UHFFFAOYSA-J 0.000 claims description 5
- 239000007822 coupling agent Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- XNINAOUGJUYOQX-UHFFFAOYSA-N 2-cyanobutanoic acid Chemical compound CCC(C#N)C(O)=O XNINAOUGJUYOQX-UHFFFAOYSA-N 0.000 claims description 3
- 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 3
- 239000006227 byproduct Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000005453 pelletization Methods 0.000 claims description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 3
- 239000004709 Chlorinated polyethylene Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 229950000845 politef Drugs 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 description 7
- 239000011231 conductive filler Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- GFVMLYBCWPLMTF-UHFFFAOYSA-N disodiomagnesium Chemical compound [Na][Mg][Na] GFVMLYBCWPLMTF-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 239000002114 nanocomposite Substances 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
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution 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
- C08L23/02—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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/54—Heating elements having the shape of rods or tubes flexible
- H05B3/56—Heating cables
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of liter of fast self limiting temperature accompanying-heat cable material of high-temperature, including PTC core ribbon, being coated on the insulating barrier outside described PTC core ribbon, metal screen layer and wear-resistance protective sleeve layer successively, PTC core ribbon is made up of ptc layer that two heating-wires being arranged in parallel are outer with being coated on it；Cable thermal protection performance prepared by the present invention is good, and heat scatters and disappears slow, and heating effect is fast, and preparation process is simple, raw material sources are wide, suitable for mass production.
Description
Technical field
The present invention relates to cable material technical field, particularly relate to a kind of liter of fast self limiting temperature accompanying-heat cable material of high-temperature
Material.
Background technology
Accompanying-heat cable is widely used in many fields, needs in oil, chemical industry, steam power plant etc. as mainly utilized in industrial aspect
The place that liquid substance solidification/flowing velocity in pipeline to be prevented or tank is slow, is mainly used in extinguishing pipe in terms of communal facility
The heat tracing in road, can be used for heating of house and the antifreeze aspect of yard piping in winter at civilian aspect.The core of accompanying-heat cable is
Its structure and its electrothermal part ptc material of making.Ptc material refers to the one that the resistance value of material rises with the rising of temperature
It is held essentially constant when the resistance of thermo-sensitive material, i.e. material or resistivity are within the scope of a certain specific temperature or only small quantity
Change, and when temperature reaches near certain specific knee pointy temperature of material, the resistivity of material can be in the several years or ten
Undergoing mutation within the scope of the narrow temperature in several years, resistivity increases rapidly the 103-109 order of magnitude.Ptc material is broadly divided into pottery
Porcelain matrix PTC material and high molecular based PTC material two types.Wherein, high molecular based PTC material is owing to having easily processing, manufacturing
The advantages such as cost is relatively low, conductive extensions is big, room temperature resistivity is low and demonstrate huge using value.But, prior art
In, high molecular based PTC material and macromolecule accompanying-heat cable there is also the defects such as stability is poor, PTC intensity is relatively low.
In " preparation of conduction/anti-electrostatic polymer nano composite material and performance study thereof " literary composition, author utilizes low melting point
The conductive filler such as metal, CNT prepares conductive anti-static polymer composites and fiber, it is proposed that new preparation
Method and new principle, the low-melting-point metal use electrical conductivity height, easily processing is as conductive filler, by melt blending and solid phase
The methods such as stretching, prepare composite fibre, show that polymer/low melting point conducting metal composite fibre has resistivity along with stretching
The raising of multiplying power and the character that reduces, compare with the composite fibre not containing low conduction melting-point fibers, the intensity of its composite fibre
All increase with elongation at break.Metal is significantly reduced by interpolation CNT and nano imvite in composite fibre
Grain diameter so that composite fibre obtains more excellent electrical property and mechanical property.Conductive filler is in polymeric matrix
Dispersibility be the deciding factor whether affecting ptc material function admirable, affect development and the application of ptc material.PTC material
The stability of material and whether to have NTC effect be to apply to topmost problem in accompanying-heat cable.And author is not examined in the whole text
Considering to this problem, this is also problem to be solved by this invention.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that the self limiting temperature heat tracing electricity that a kind of liter of high-temperature is fast
Cable material.
The present invention is achieved by the following technical solutions:
The self limiting temperature accompanying-heat cable material that a kind of liter of high-temperature is fast, including PTC core ribbon, is coated on outside described PTC core ribbon successively
Insulating barrier, metal screen layer and wear-resistance protective sleeve layer, PTC core ribbon is by two heating-wires being arranged in parallel and to be coated on it outer
Ptc layer is constituted；Described ptc material is made up of the raw material of following weight portion: polypropylene 30-35, sn-bi alloy powder 6-
9, zinc stearate 0.2-0.4, titanate coupling agent 0.3-0.4, copper nanoparticle 5-7, carboxyl butyronitrile powdered rubber 9-12, chlorination gather
Ethylene 53-60, politef 15-18, industrial starch 3-4, sodium hydroxide 3-4, Colophonium 7-8, calcium lactate 2.2-2.7, second two
Amine tetraacethyl disodium magnesium 2.1-2.5, white carbon 5-7, conductivity ceramics powder 9-11, antioxidant 1010 0.3-0.5, deionization
Water is appropriate.
The self limiting temperature accompanying-heat cable material that described a kind of liter of high-temperature is fast, is made up of step in detail below:
(1) with the stirring of cold deionized water, industrial starch being mixed 3-5min, then liter high-temperature is to 65-80 DEG C, gelatinization time
For 0.5-1h, obtaining gelatinized starch, mixed homogeneously with Colophonium by sodium hydroxide, carry out saponification process, saponification temperature is 80-100
DEG C, the time is 2-3h, obtains Colophonium saponification liquor, Colophonium saponification liquor and gelatinized starch is mixed and carries out supersound process, ultrasonic power
For 90W, ultrasonic time is 60-90min；
(2) calcium lactate and ethylenediamine tetraacetic acid disodium magnesium salt are dissolved in the deionized water of 5-7 times amount part, after dissolving, add white carbon
Obtain mixed solution with conductivity ceramics powder mixing and stirring, add product stirring mixing prepared by step (1), now control
Temperature is at 80-90 DEG C, and rotating speed is 400-500r/min, pulverizes standby after stirring to dry materials；
(3) by drying 6-8h at polypropylene in an oven 80 DEG C, granule it is cut into after cooling, by sn-bi alloy powder, titanate esters coupling
The polypropylene granules of agent, copper nanoparticle and pretreatment, according to proportioning mix homogeneously in homogenizer, is then added to twin screw
Extruder extruding pelletization, then granule is dried at 80 DEG C 4-5h, be placed in capillary rheometer, make mixing precursor,
Precursor is clamped on fixture, adds in hot tank at the environment of 170-180 DEG C, with the speed Uniform Tension fiber of 10mm/min；
(4) product prepared by product residue each component of formula ratio, step (1) prepared and step (2) is melted by banbury
Melting blended, temperature is 160-175 DEG C, and the time is 15-25min, then by single screw extrusion machine pelletize, then by particle at 10-
Under the rate of extrusion of 15m/min, it is cooled to room temperature by extrusion die extrusion stranding material.
The invention have the advantage that and by the present invention in that with low-melting-point metal as conductive filler, in conjunction with melting mixing with solid
The means stretched mutually, are prepared for conduction, antistatic composite fiber so that it is have good intensity and elongation at break, and have
Excellent electric conductivity and mechanical property, solve metal and cause electrical conductivity to decline with matrix material poor compatibility, easily oxidation
Problem, and by introduce ultra fine powder rubber and modified graphene, it is achieved high volume fill, significantly improve volume get rid of
The efficiency of effect, and help difficult scattered nanoparticle in polymerization species dispersion, the perfect conductive mesh of metal/conductive material
Network, considerably reduces conduction excess effusion value, improves the electrical stability of material, carries out also by conductivity ceramics powder and white carbon black
The modified effective deposition forming starch/Colophonium, significantly improves the adhesion of filler and matrix material, alleviates material property
Intensity and the impact of mechanical property, Colophonium also has hydrophobicity, improves the Moisture-proof water-resistant performance of material, cable prepared by the present invention
Thermal protection performance is good, and heat scatters and disappears slow, and heating effect is fast, and preparation process is simple, raw material sources are wide, suitable for mass production.
Detailed description of the invention
The self limiting temperature accompanying-heat cable material that a kind of liter of high-temperature is fast, including PTC core ribbon, is coated on described PTC core ribbon successively
Outer insulating barrier, metal screen layer and wear-resistance protective sleeve layer, PTC core ribbon is by two heating-wires being arranged in parallel and is coated on outside it
Ptc layer constitute；Described ptc material is made up of the raw material of following weight portion (kilogram): polypropylene 30, sn-bi alloy
Powder 6, zinc stearate 0.2, titanate coupling agent 0.3, copper nanoparticle 5, carboxyl butyronitrile powdered rubber 9, chlorinated polyethylene 53, poly-four
Fluorothene 15, industrial starch 3, sodium hydroxide 3, Colophonium 7, calcium lactate 2.2, ethylenediamine tetraacetic acid disodium magnesium salt 2.1, white carbon 5, lead
Electroceramics powder 9, antioxidant 1010 0.3, deionized water are appropriate.
The self limiting temperature accompanying-heat cable material that described a kind of liter of high-temperature is fast, is made up of step in detail below:
(1) with the stirring of cold deionized water, industrial starch being mixed 3min, then liter high-temperature is to 65 DEG C, and gelatinization time is
0.5h, obtains gelatinized starch, is mixed homogeneously with Colophonium by sodium hydroxide, carries out saponification process, and saponification temperature is 80 DEG C, and the time is
2h, obtains Colophonium saponification liquor, Colophonium saponification liquor and gelatinized starch is mixed and carries out supersound process, and ultrasonic power is 90W, time ultrasonic
Between be 60min；
(2) calcium lactate and ethylenediamine tetraacetic acid disodium magnesium salt are dissolved in the deionized water of 5 times amount parts, after dissolving add white carbon and
Conductivity ceramics powder mixing and stirring obtains mixed solution, adds product stirring mixing prepared by step (1), now controls temperature
Degree is at 80 DEG C, and rotating speed is 400r/min, pulverizes standby after stirring to dry materials；
(3) by polypropylene in an oven 80 DEG C dry 6h, be cut into granule after cooling, by sn-bi alloy powder, titanate coupling agent,
The polypropylene granules of copper nanoparticle and pretreatment, according to proportioning mix homogeneously in homogenizer, is then added to twin-screw extrusion
Machine extruding pelletization, then granule is dried at 80 DEG C 4h, be placed in capillary rheometer, make mixing precursor, by precursor
It is clamped on fixture, adds in hot tank at the environment of 170 DEG C, with the speed Uniform Tension fiber of 10mm/min；
(4) product prepared by product residue each component of formula ratio, step (1) prepared and step (2) is melted by banbury
Melting blended, temperature is 160 DEG C, and the time is 15min, then by single screw extrusion machine pelletize, then by particle squeezing at 10m/min
Go out under speed, be cooled to room temperature by extrusion die extrusion stranding material.
The performance test of this accompanying-heat cable material is as follows:
Hot strength (MPa): 25.8；Elongation at break (%): 386；Oxygen index (OI) (%): 31；Heat stability: by 10 DEG C to 99 DEG C
After circulating 300 times back and forth, electric cable heating amount maintains 95%；Specific insulation (Ω .cm): 95；Operating temperature >=160 DEG C.
Claims (2)
1. one kind rises the self limiting temperature accompanying-heat cable material that high-temperature is fast, it is characterised in that includes PTC core ribbon, is coated on institute successively
State the insulating barrier outside PTC core ribbon, metal screen layer and wear-resistance protective sleeve layer, PTC core ribbon by two heating-wires being arranged in parallel and
It is coated on its outer ptc layer to constitute；Described ptc material is made up of the raw material of following weight portion: polypropylene 30-35,
Sn-bi alloy powder 6-9, zinc stearate 0.2-0.4, titanate coupling agent 0.3-0.4, copper nanoparticle 5-7, carboxyl butyronitrile powder rubber
Glue 9-12, chlorinated polyethylene 53-60, politef 15-18, industrial starch 3-4, sodium hydroxide 3-4, Colophonium 7-8, calcium lactate
2.2-2.7, ethylenediamine tetraacetic acid disodium magnesium salt 2.1-2.5, white carbon 5-7, conductivity ceramics powder 9-11, antioxidant 1010
0.3-0.5, deionized water are appropriate.
The self limiting temperature accompanying-heat cable material that a kind of liter of high-temperature is fast, it is characterised in that by following tool
Body step is made:
(1) with the stirring of cold deionized water, industrial starch being mixed 3-5min, then liter high-temperature is to 65-80 DEG C, gelatinization time
For 0.5-1h, obtaining gelatinized starch, mixed homogeneously with Colophonium by sodium hydroxide, carry out saponification process, saponification temperature is 80-100
DEG C, the time is 2-3h, obtains Colophonium saponification liquor, Colophonium saponification liquor and gelatinized starch is mixed and carries out supersound process, ultrasonic power
For 90W, ultrasonic time is 60-90min；
(2) calcium lactate and ethylenediamine tetraacetic acid disodium magnesium salt are dissolved in the deionized water of 5-7 times amount part, after dissolving, add white carbon
Obtain mixed solution with conductivity ceramics powder mixing and stirring, add product stirring mixing prepared by step (1), now control
Temperature is at 80-90 DEG C, and rotating speed is 400-500r/min, pulverizes standby after stirring to dry materials；
(3) by drying 6-8h at polypropylene in an oven 80 DEG C, granule it is cut into after cooling, by sn-bi alloy powder, titanate esters coupling
The polypropylene granules of agent, copper nanoparticle and pretreatment, according to proportioning mix homogeneously in homogenizer, is then added to twin screw
Extruder extruding pelletization, then granule is dried at 80 DEG C 4-5h, be placed in capillary rheometer, make mixing precursor,
Precursor is clamped on fixture, adds in hot tank at the environment of 170-180 DEG C, with the speed Uniform Tension fiber of 10mm/min；
(4) product prepared by product residue each component of formula ratio, step (1) prepared and step (2) is melted by banbury
Melting blended, temperature is 160-175 DEG C, and the time is 15-25min, then by single screw extrusion machine pelletize, then by particle at 10-
Under the rate of extrusion of 15m/min, it is cooled to room temperature by extrusion die extrusion stranding material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521939.1A CN106147021A (en) | 2016-07-05 | 2016-07-05 | The self limiting temperature accompanying-heat cable material that a kind of liter of high-temperature is fast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521939.1A CN106147021A (en) | 2016-07-05 | 2016-07-05 | The self limiting temperature accompanying-heat cable material that a kind of liter of high-temperature is fast |
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| Publication Number | Publication Date |
|---|---|
| CN106147021A true CN106147021A (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610521939.1A Pending CN106147021A (en) | 2016-07-05 | 2016-07-05 | The self limiting temperature accompanying-heat cable material that a kind of liter of high-temperature is fast |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108774340A (en) * | 2018-07-02 | 2018-11-09 | 芜湖航天特种电缆厂股份有限公司 | Moisture-proof additive of cable cover(ing) and preparation method thereof |
| CN111690189A (en) * | 2020-06-12 | 2020-09-22 | 华南理工大学 | Carboxyl nitrile rubber/carboxyl starch composite material and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111690189A (en) * | 2020-06-12 | 2020-09-22 | 华南理工大学 | Carboxyl nitrile rubber/carboxyl starch composite material and preparation method and application thereof |
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