CN1316704C - Bushing tube for buried medium-high voltage power cable and production method thereof - Google Patents
Bushing tube for buried medium-high voltage power cable and production method thereof Download PDFInfo
- Publication number
- CN1316704C CN1316704C CNB021485658A CN02148565A CN1316704C CN 1316704 C CN1316704 C CN 1316704C CN B021485658 A CNB021485658 A CN B021485658A CN 02148565 A CN02148565 A CN 02148565A CN 1316704 C CN1316704 C CN 1316704C
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- power cable
- controlled
- polypropylene
- calcium carbonate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 150000001875 compounds Chemical class 0.000 claims abstract description 40
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 36
- 239000004743 Polypropylene Substances 0.000 claims abstract description 32
- -1 polypropylene Polymers 0.000 claims abstract description 32
- 229920001155 polypropylene Polymers 0.000 claims abstract description 32
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000003063 flame retardant Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000000049 pigment Substances 0.000 claims abstract description 3
- 238000001125 extrusion Methods 0.000 claims description 16
- 229920001971 elastomer Polymers 0.000 claims description 10
- 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 class 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 8
- UAUDZVJPLUQNMU-UHFFFAOYSA-N Erucasaeureamid Natural products CCCCCCCCC=CCCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-UHFFFAOYSA-N 0.000 claims description 8
- 239000000806 elastomer Substances 0.000 claims description 8
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims description 8
- 239000004615 ingredient Substances 0.000 claims description 8
- 238000005453 pelletization Methods 0.000 claims description 8
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 7
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 7
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims description 7
- 229920002943 EPDM rubber Polymers 0.000 claims description 6
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 6
- 230000004048 modification Effects 0.000 claims description 6
- 238000012986 modification Methods 0.000 claims description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- 229920003051 synthetic elastomer Polymers 0.000 claims description 4
- 239000005061 synthetic rubber Substances 0.000 claims description 4
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 3
- 239000000347 magnesium hydroxide Substances 0.000 claims description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000010456 wollastonite Substances 0.000 claims description 2
- 229910052882 wollastonite Inorganic materials 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000011256 inorganic filler Substances 0.000 abstract description 2
- 229910003475 inorganic filler Inorganic materials 0.000 abstract description 2
- 150000001408 amides Chemical class 0.000 abstract 1
- 238000005469 granulation Methods 0.000 abstract 1
- 230000003179 granulation Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 12
- 239000004800 polyvinyl chloride Substances 0.000 description 8
- 229920000915 polyvinyl chloride Polymers 0.000 description 8
- 230000004927 fusion Effects 0.000 description 6
- 239000008188 pellet Substances 0.000 description 6
- AUNAPVYQLLNFOI-UHFFFAOYSA-L [Pb++].[Pb++].[Pb++].[O-]S([O-])(=O)=O.[O-][Cr]([O-])(=O)=O.[O-][Mo]([O-])(=O)=O Chemical compound [Pb++].[Pb++].[Pb++].[O-]S([O-])(=O)=O.[O-][Cr]([O-])(=O)=O.[O-][Mo]([O-])(=O)=O AUNAPVYQLLNFOI-UHFFFAOYSA-L 0.000 description 5
- 239000002105 nanoparticle Substances 0.000 description 5
- 150000001805 chlorine compounds Chemical class 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical compound C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 210000003953 foreskin Anatomy 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a sleeve pipe for a buried type medium-high voltage power cable and a production method thereof. The present invention is developed fro providing convenient production, and is characterized in that the sleeve pipe comprises the following components in weight portions referring to the weight of polypropylene: 100 of the polypropylene, 6 to 12 of an elastic body, 15 to 40 of a fire retardant, 4 to 10 of nanometer calcium carbonate, 10 to 20 of a compound inorganic filler, 0.1 to 1 of amide and 0.1 to 2 of pigments; materials of the recipe are mixed together in a high speed mixer for 8 to 12 minutes, and then, the mixed materials are extruded for granulation in a double-screw extruder, so that a special recipe material for nanometer calcium carbonate mixed fire-retardant modified polypropylene which is used for the sleeve pipe for a power cable is manufactured, wherein the temperature of a feed cylinder of the double-screw extruder is controlled in a range of 180 DEG C to 220 DEG C and the screw rod speed is controlled in a range of 400 to 1200 rev/min; finally, a pull pipe is removed from the material to obtain the sleeve pipe. The production method has the advantages of simplicity, low requirement for production equipment, stable technique, etc. The material has the characteristics of high rigidity, fire retardance and high strength, and can be applied to the sleeve pipe for electric cables.
Description
Technical field
The present invention relates to a kind of modifying plastics, belong to nano material especially and mix after modified polypropene and the polypropylene fire retardant modification material and produce buried mesohigh power cable with the sleeve technology field production method technical field relevant with it.
Background technology
The primary raw material of present thermoplasticity power cable protecting pipe is chliorinated polyvinyl chloride and other auxiliary agents (referring to Chinese patent literature CN1081382C) such as polyvinyl chloride compound and stabilizer.Adopt that chliorinated polyvinyl chloride and polyvinyl chloride compound produce that cable sheath tube exists that poor heat stability, analyte corroding metal, protecting pipe density are big, in the production process to shortcomings such as equipment requirements height, therefore have only minority to have the producer of import equipment to have the ability to produce at present, and home equipment can't be produced the power cable protecting pipe that chliorinated polyvinyl chloride and polyvinyl chloride compound are raw material because control precision is poor.And in the polypropylene modification field, only can't satisfy withstand voltage, fire-retardant, shock-resistant, the composite request such as density is low of cable sheath tube (referring to Chinese patent literature CN1211591A with the polypropylene of elastomer and superfine micron grade inorganic filler or nano-sized filler modification, CN1063199C, CN1286278A, 01132320.5).Chinese patent CN1091122C discloses a kind of EPT rubber/thermoplastic elastomer of dynamic crosslinking, owing to adopted the dynamic crosslinking technology, the material that makes is to be the thermoplastic elastomer (TPE) with rubber properties of matrix with ethylene-propylene rubber, it is based on ethylene-propylene rubber, and polypropylene is what assist, so properties of materials is partial to flexibility after the modification, can only be used for doing the foreskin of cable, can not satisfy involved in the present invention is the high rigidity of the cable PP Pipe Compound of matrix with the polypropylene plastics, fire-retardant, the requirement of high strength etc. is difficult to obtain good application at buried mesohigh power cable aspect sleeve pipe.
Summary of the invention
Primary technical problem to be solved by this invention be according to the power cable protecting pipe use and construction requirement, a kind of buried mesohigh power cable sleeve pipe is provided, the power cable protecting pipe that utilizes this PP Pipe Compound to produce has process stabilizing, production equipment is required low, withstand voltage height, shock resistance, fire-retardant, advantage such as rigidity is high, density is low, and meets production, construction and the instructions for use of power cable protecting pipe fully.
Another technical problem to be solved by this invention provides a kind of production method of the above-mentioned sleeve pipe of production of simple, low to the production equipment requirement, process stabilizing.
The present invention solves the technical scheme that above-mentioned primary technical problem adopts: the buried mesohigh power cable of this kind sleeve pipe, it is characterized in that this sleeve pipe adopts the nano modification polypropylene dedicated material, it has following component: polypropylene 100, elastomer 6-12, fire retardant 15-40, nano-calcium carbonate 4-10, compound inorganic stuffing 10-20, erucamid erucyl amide 0.1-1, pigment 0.1-2, above be benchmark with polyacrylic weight.
At least a among the preferred ethylene propylene monomer EPR of above-mentioned elastomer, ethylene propylene diene rubber EPDM, s-B-S synthetic rubber SBS, styrene-ethylene-butadiene-styrene synthetic rubber SEBS, octene-ethylene elastomer POE, the ethene-vinyl acetate elastomer EVA.
The D of above-mentioned Nano particles of calcium carbonate
90≤ 100 nanometers.
At least two kinds of compounds of the preferred calcium carbonate superfine powder of above-mentioned compound inorganic stuffing, imvite, mica, wollastonite, talcum powder, barium sulfate, aluminium hydroxide, magnesium hydroxide.
The preferred HOPP of above-mentioned polypropylene, polyacrylic melt flow rate (MFR) MFR≤3 restrain/10 minutes.
The present invention solves the technical scheme that above-mentioned another technical problem adopts: according to above-mentioned proportion ingredient, material mixed in high-speed mixer 8-12 minute in will filling a prescription, then with compound extruding pelletization in double screw extruder, make the effective nano-calcium carbonate of cable cover(ing) and mixed the modified flame-retardant polypropylene PP Pipe Compound, wherein the double screw extruder barrel temperature is controlled at 180 ℃～220 ℃, screw speed is controlled at 400～1200 rev/mins, then PP Pipe Compound is extruded in the single screw extrusion machine fusing, the through port mold forming, cooling and shaping obtains cable sheath tube, the barrel temperature of its single screw extrusion machine is controlled at 175 ℃～200 ℃, screw speed is controlled at 40～120 rev/mins, and die temperature is controlled at 175 ℃～190 ℃.
Compare with the polyvinyl chloride compound with the raw material chliorinated polyvinyl chloride that is used to produce cable sheath tube at present, because the present invention added auxiliary agents such as elastomer, nano-calcium carbonate, compound inorganic stuffing and fire retardant in prescription, make that protecting pipe has good processing stability, processing technology is simple, protecting pipe is shock-resistant, fire-retardant, high pressure resistant, density is low, advantage such as heat-resisting.The typical performance of protecting pipe of the present invention is as follows:
| Project | Unit | Index |
| Density | Kg/m 3 | ≤1200 |
| Vicat softening temperature | ℃ | ≥120 |
| Ring stiffness | Wall thickness≤7.00mm KPa | ≥4 |
| Ring stiffness | Wall thickness 〉=8.50mm KPa | ≥8 |
| Coefficient of friction | ≤0.40 | |
| Specific insulation | Ω.cm | ≥1.0×10 13 |
| Fire-retardant | FV-0 | |
| Falling weight impact test | 9/10 passes through |
Production method provided by the invention has advantage and effects such as simple, low to the production equipment requirement, process stabilizing, is adapted at producing on this specialized barrel and promotes the use of.
Embodiment
Below in conjunction with embodiment invention is described in further detail; be necessary to be pointed out that at this following examples only are used for that the present invention is further described; can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field can make some nonessential improvement and adjustment to the present invention according to the invention described above content.
Embodiment 1:
By following proportion ingredient will fill a prescription in material in high-speed mixer, mixed 10 minutes, then compound extruding pelletization in double screw extruder is made the effective nano-calcium carbonate of power cable cover and mix the modified flame-retardant polypropylene PP Pipe Compound, the double screw extruder barrel temperature is controlled at 200 ℃, and screw speed is controlled at 800 rev/mins.Pellet is added in the single screw extrusion machine fusion plastification in extruder, the typing of through port mould, cool off, cut, promptly make the protecting pipe that the present invention relates to, the barrel temperature of single screw extrusion machine is controlled at 190 ℃, screw speed is controlled at 80 rev/mins, and die temperature is controlled at 185 ℃.110 millimeters of the protecting pipe external diameters that present embodiment obtains, 5 millimeters of wall thickness, performance reaches the typical performance requirement of protecting pipe among the present invention.Wherein proportioning is
Polypropylene 100
EPDM 9
Fire retardant octa-BDE 30
Nano-calcium carbonate 7
Compound inorganic stuffing 15
Erucamid erucyl amide 0.5
Molybdate red 1.0
More than be benchmark with polyacrylic weight.
Compound inorganic stuffing mica and calcium carbonate superfine powder particle, the two proportioning are 1: 1.
Embodiment 2
By following proportion ingredient will fill a prescription in material in high-speed mixer, mixed 12 minutes, then compound extruding pelletization in double screw extruder is made the effective nano-calcium carbonate of power cable cover and mix the modified flame-retardant polypropylene PP Pipe Compound, the double screw extruder barrel temperature is controlled at 180 ℃, and screw speed is controlled at 400 rev/mins.Pellet is added in the single screw extrusion machine, fusion plastification in extruder, the typing of through port mould, cool off, cut, promptly make the protecting pipe that the present invention relates to, the barrel temperature of single screw extrusion machine is controlled at 175 ℃, screw speed is controlled at 120 rev/mins, and die temperature is controlled at 190 ℃.90 millimeters of the protecting pipe external diameters of present embodiment, 4 millimeters of wall thickness, performance reaches the typical performance requirement of protecting pipe among the present invention.Its proportioning is
Polypropylene 100
EPDM 12
Fire retardant 15
Nano-calcium carbonate 10
Compound inorganic stuffing 20
Erucamid erucyl amide 0.5
Molybdate red 1.0
More than be benchmark with polyacrylic weight.
Compound inorganic stuffing is the mixture of imvite and aluminium hydroxide, and the two proportioning is 1: 1.
Embodiment 3
By following proportion ingredient will fill a prescription in material in high-speed mixer, mixed 10 minutes, then compound extruding pelletization in double screw extruder is made the effective nano-calcium carbonate of power cable cover and mix the modified flame-retardant polypropylene PP Pipe Compound, the double screw extruder barrel temperature is controlled at 200 ℃, and screw speed is controlled at 800 rev/mins.Pellet is added in the single screw extrusion machine, fusion plastification in extruder, the typing of through port mould, cool off, cut, promptly make the protecting pipe that the present invention relates to, the barrel temperature of single screw extrusion machine is controlled at 200 ℃, screw speed is controlled at 40 rev/mins, and die temperature is controlled at 175 ℃.160 millimeters of the protecting pipe external diameters that present embodiment obtains, 5 millimeters of wall thickness, performance reaches the typical performance requirement of protecting pipe among the present invention.
Polypropylene 100
EPR 6
Fire retardant 15
Nano-calcium carbonate 4
Compound inorganic stuffing 10
Erucamid erucyl amide 0.5
Molybdate red 1.0
More than be benchmark with polyacrylic weight.
Compound inorganic stuffing is the mixture of imvite, aluminium hydroxide, and the two proportioning is 1: 1.
Embodiment 4
By following proportion ingredient will fill a prescription in material in high-speed mixer, mixed 10 minutes, then compound extruding pelletization in double screw extruder is made the effective nano-calcium carbonate of power cable cover and mix the modified flame-retardant polypropylene PP Pipe Compound, the double screw extruder barrel temperature is controlled at 200 ℃, and screw speed is controlled at 1000 rev/mins.Pellet is added in the single screw extrusion machine, fusion plastification in extruder, the typing of through port mould, cool off, cut, promptly make the protecting pipe that the present invention relates to, the barrel temperature of single screw extrusion machine is controlled at 185 ℃, screw speed is controlled at 80 rev/mins, and die temperature is controlled at 185 ℃.225 millimeters of the protecting pipe external diameters that present embodiment obtains, 9.5 millimeters of wall thickness, performance reaches the typical performance requirement of protecting pipe among the present invention.
Polypropylene 100
SEBS 10
Fire retardant 20
Nano-calcium carbonate 8
Compound inorganic stuffing 15
Erucamid erucyl amide 0.5
Carbon black 1.0
Compound inorganic stuffing is the mixture of imvite and aluminium hydroxide, and the two proportioning is 1: 1,
Wherein polypropylene is a HOPP, and polyacrylic melt flow rate (MFR) MFR≤3 restrain/10 minutes, the D of Nano particles of calcium carbonate
90≤ 100 nanometers.
Embodiment 5
By following proportion ingredient will fill a prescription in material in high-speed mixer, mixed 8 minutes, then compound extruding pelletization in double screw extruder is made the effective nano-calcium carbonate of power cable cover and mix the modified flame-retardant polypropylene PP Pipe Compound, the double screw extruder barrel temperature is controlled at 220 ℃, and screw speed is controlled at 1200 rev/mins.Pellet is added in the single screw extrusion machine, fusion plastification in extruder, the typing of through port mould, cool off, cut, promptly make the protecting pipe that the present invention relates to, the barrel temperature of single screw extrusion machine is controlled at 180 ℃, screw speed is controlled at 80 rev/mins, and die temperature is controlled at 185 ℃.Present embodiment obtains 90 millimeters of protecting pipe external diameters, 4 millimeters of wall thickness, and performance reaches the typical performance requirement of protecting pipe among the present invention.
Polypropylene 100
SEBS 8
EPR 2
Fire retardant 40
Nano-calcium carbonate 8
Compound inorganic stuffing 15
Erucamid erucyl amide 1
Molybdate red 0.1
Compound inorganic stuffing is the mixture of imvite, aluminium hydroxide, magnesium hydroxide, and three's proportioning is 1: 1: 1.
Wherein polypropylene is a HOPP, and polyacrylic melt flow rate (MFR) MFR≤3 restrain/10 minutes, the D of Nano particles of calcium carbonate
90≤ 100 nanometers.
Embodiment 6
By following proportion ingredient will fill a prescription in material in high-speed mixer, mixed 10 minutes, then compound extruding pelletization in double screw extruder is made the effective nano-calcium carbonate of power cable cover and mix the modified flame-retardant polypropylene PP Pipe Compound, the double screw extruder barrel temperature is controlled at 200 ℃, and screw speed is controlled at 1000 rev/mins.Pellet is added in the single screw extrusion machine, fusion plastification in extruder, the typing of through port mould, cool off, cut, promptly make the protecting pipe that the present invention relates to, the barrel temperature of single screw extrusion machine is controlled at 200 ℃, screw speed is controlled at 40 rev/mins, and die temperature is controlled at 175 ℃.125 millimeters of the protecting pipe external diameters that present embodiment obtains, 5 millimeters of wall thickness, performance reaches the typical performance requirement of protecting pipe among the present invention.
Polypropylene 100
SEBS 10
Fire retardant 20
Nano-calcium carbonate 8
Compound inorganic stuffing 15
Erucamid erucyl amide 0.1
Molybdate red 2.0
Compound inorganic stuffing is the mixture of imvite and aluminium hydroxide, and the two proportioning is 1: 1,
Wherein polypropylene is a HOPP, and polyacrylic melt flow rate (MFR) MFR≤3 restrain/10 minutes, the D of Nano particles of calcium carbonate
90≤ 100 nanometers.
Claims (6)
1, a kind of buried mesohigh power cable sleeve pipe is characterized in that this sleeve pipe adopts the nano modification polypropylene dedicated material, and it has following component:
Polypropylene 100
Elastomer 6-12
Fire retardant 15-40
Nano-calcium carbonate 4-10
Compound inorganic stuffing 10-20
Erucamid erucyl amide 0.1-1
Pigment 0.1-2
More than be benchmark with polyacrylic weight.
2,, it is characterized in that described elastomer is at least a of ethylene propylene monomer EPR, ethylene propylene diene rubber EPDM, s-B-S synthetic rubber SBS, styrene-ethylene-butadiene-styrene synthetic rubber SEBS according to the described buried mesohigh power cable sleeve pipe of claim 1.
3,, it is characterized in that the D of nano-calcium carbonate according to the described buried mesohigh power cable sleeve pipe of claim 1
90≤ 100 nanometers.
4,, it is characterized in that compound inorganic stuffing is at least two kinds of compounds of calcium carbonate superfine powder, imvite, mica, wollastonite, talcum powder, barium sulfate, aluminium hydroxide, magnesium hydroxide according to the described buried mesohigh power cable sleeve pipe of claim 1.
5, according to the described buried mesohigh power cable sleeve pipe of claim 1, it is characterized in that polypropylene selects HOPP, polyacrylic melt flow rate (MFR) MFR≤3 restrain/10 minutes.
6, a kind of production buried mesohigh power cable sleeve pipe method as claimed in claim 1, it is characterized in that according to the described proportion ingredient of claim 1, material mixed in high-speed mixer 8-12 minute, then with compound extruding pelletization in double screw extruder, make the effective nano-calcium carbonate of cable cover(ing) and mixed the modified flame-retardant polypropylene PP Pipe Compound, wherein the double screw extruder barrel temperature is controlled at 180 ℃～220 ℃, screw speed is controlled at 400～1200 rev/mins, then PP Pipe Compound is extruded in the single screw extrusion machine fusing, the through port mold forming, cooling and shaping obtains the power cable sleeve pipe, the barrel temperature of its single screw extrusion machine is controlled at 175 ℃～200 ℃, screw speed is controlled at 40～120 rev/mins, and die temperature is controlled at 175 ℃～190 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021485658A CN1316704C (en) | 2002-12-16 | 2002-12-16 | Bushing tube for buried medium-high voltage power cable and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021485658A CN1316704C (en) | 2002-12-16 | 2002-12-16 | Bushing tube for buried medium-high voltage power cable and production method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1508925A CN1508925A (en) | 2004-06-30 |
| CN1316704C true CN1316704C (en) | 2007-05-16 |
Family
ID=34233208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021485658A Expired - Fee Related CN1316704C (en) | 2002-12-16 | 2002-12-16 | Bushing tube for buried medium-high voltage power cable and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1316704C (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101114764B (en) * | 2006-07-27 | 2010-09-15 | 上海介通管业有限公司 | Modified polypropylene cable protection tube for non-digging direct-buried mode |
| CN100495843C (en) * | 2007-06-19 | 2009-06-03 | 周云全 | Buried cable carbon-screw protective tube produced by utilizing waste plastic-steel |
| CN102617914B (en) * | 2012-04-01 | 2014-07-09 | 广东三凌塑料管材有限公司 | Polyethylene cable duct |
| CN102617931B (en) * | 2012-04-01 | 2014-04-16 | 广东三凌塑料管材有限公司 | Modified polypropylene cable guide |
| CN104059321A (en) * | 2013-03-19 | 2014-09-24 | 中纺投资发展股份有限公司 | Weather-proof environment-friendly flame-retardant polymer material for flexible cable and preparation method thereof |
| CN103128945A (en) * | 2013-03-19 | 2013-06-05 | 佛山顾地塑胶有限公司 | Preparation method of heat-resistant PVC (polyvinyl chloride) casing pipe for buried high-voltage power cable |
| US9315657B2 (en) * | 2013-07-12 | 2016-04-19 | Sumitomo Chemical Company, Limited | Propylene resin composition |
| CN103878966A (en) * | 2014-03-13 | 2014-06-25 | 苏州科茂电子材料科技有限公司 | Preparation method of insulation body in radio-frequency coaxial cable |
| CN104086886A (en) * | 2014-07-09 | 2014-10-08 | 安徽宁国市高新管业有限公司 | Anti-impact MPP (molypermalloy powder core) electric protection tube |
| CN104212063A (en) * | 2014-09-22 | 2014-12-17 | 无为县华祥电缆材料有限公司 | High-flame-retarding modified polypropylene cable sheath material |
| CN104371191A (en) * | 2014-10-30 | 2015-02-25 | 安徽电信器材贸易工业有限责任公司 | Special material for protective casing for preventing pests and rats from biting communication cable and preparation method of special material |
| CN104945805A (en) * | 2015-07-10 | 2015-09-30 | 苏州科茂电子材料科技有限公司 | Fire-resistant type agricultural cable sheath material and preparing method thereof |
| CN105542301A (en) * | 2016-01-04 | 2016-05-04 | 安徽瑞侃电缆科技有限公司 | Cable insulation layer material with excellent thermal stability and preparation method thereof |
| CN106810760A (en) * | 2016-12-20 | 2017-06-09 | 安徽华天电缆有限公司 | A kind of heat conduction Compression-resistincable cable material |
| CN107163396A (en) * | 2017-07-04 | 2017-09-15 | 福建恒杰塑业新材料有限公司 | A kind of power pipe and preparation method thereof |
| CN108219276A (en) * | 2018-01-12 | 2018-06-29 | 广东羽龙科技有限公司 | A kind of high tenacity heat superconducting flame-retardant polypropylene composite material and preparation process and purposes |
| CN108641183A (en) * | 2018-05-17 | 2018-10-12 | 合肥浦尔菲电线科技有限公司 | A kind of high temperature-resistant cable set and preparation method thereof |
| CN108752750A (en) * | 2018-07-18 | 2018-11-06 | 江苏铭鼎新材料科技有限公司 | A kind of formula and preparation method thereof of environment-friendly type thermostable power cable protecting pipe |
| CN109929210A (en) * | 2019-03-20 | 2019-06-25 | 晋江市石达塑胶精细有限公司 | EVA micelle modified elastomer and preparation method thereof |
| CN111546605A (en) * | 2020-04-26 | 2020-08-18 | 天津大学 | Isothermal crystallization extrusion molding method for thermoplastic polypropylene cable |
| CN111484123B (en) * | 2020-05-06 | 2022-03-29 | 北京工业大学 | Efficient nitrifying embedded bioactive filler and preparation method thereof |
| CN111925596A (en) * | 2020-08-27 | 2020-11-13 | 江苏诺贝尔塑业有限公司 | Flame-retardant non-excavation modified polypropylene plastic cable conduit |
| CN114672100A (en) * | 2022-05-06 | 2022-06-28 | 六安新兴塑管有限公司 | MPP pipe extrusion molding process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2259017Y (en) * | 1996-08-23 | 1997-08-06 | 福建省龙岩环星无线电厂 | Electrode imbedded high-voltage bushing |
| CN1205938A (en) * | 1998-05-20 | 1999-01-27 | 开封市新龙塑钢管厂 | Production process of polypropylene pipe for water supply |
| JP2000224746A (en) * | 1999-02-03 | 2000-08-11 | Mitsubishi Cable Ind Ltd | Bushing for cable terminal |
| CN1328084A (en) * | 2001-07-03 | 2001-12-26 | 成都市华硕实业有限公司 | Composite of microfibre, superfine powder and polypropylene |
-
2002
- 2002-12-16 CN CNB021485658A patent/CN1316704C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2259017Y (en) * | 1996-08-23 | 1997-08-06 | 福建省龙岩环星无线电厂 | Electrode imbedded high-voltage bushing |
| CN1205938A (en) * | 1998-05-20 | 1999-01-27 | 开封市新龙塑钢管厂 | Production process of polypropylene pipe for water supply |
| JP2000224746A (en) * | 1999-02-03 | 2000-08-11 | Mitsubishi Cable Ind Ltd | Bushing for cable terminal |
| CN1328084A (en) * | 2001-07-03 | 2001-12-26 | 成都市华硕实业有限公司 | Composite of microfibre, superfine powder and polypropylene |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1508925A (en) | 2004-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1316704C (en) | Bushing tube for buried medium-high voltage power cable and production method thereof | |
| CN102952336B (en) | Active basic magnesium sulfate whisker modified polypropylene composite material and preparation method thereof | |
| CN104629187B (en) | A kind of multi-functional PP composite material and preparation method thereof | |
| CN103333406B (en) | A kind of modified expanded flame-proof polypropelene composition and preparation method thereof | |
| CN107973993B (en) | Aging-resistant easily-welded thermoplastic polyolefin waterproof coiled material and preparation method thereof | |
| CN102993556B (en) | Polypropylene composite, its preparation method and application thereof | |
| CN104788876A (en) | Fiber reinforced thermoplastic elastomer and preparation method thereof | |
| CN103113661A (en) | High-strength high-toughness flame-retardant polypropylene composite and preparation method thereof | |
| CN102140197A (en) | Antistatic agent, antistatic flame-retarding plastics and production methods thereof | |
| CN103709509A (en) | Expandable microsphere filling modified polypropylene composite material and preparation method thereof | |
| CN111073116A (en) | Graphene modified composite material and preparation method and application thereof | |
| CN106479057A (en) | A kind of low-density and high-strength modified polypropylene material and production method | |
| CN107286540A (en) | A kind of high-strength electric power threading tube material of flame-proof weather-resisting and preparation method thereof | |
| CN113788999A (en) | High-flame-retardant cold-resistant low-smoke halogen-free cable material and preparation process thereof | |
| CN105315532B (en) | A kind of thermoplasticity soft low-smoke halogen-free CABLE MATERIALS and preparation method thereof | |
| CN109679263A (en) | A kind of high-strength fire-retardant bubble chamber film | |
| CN115746443A (en) | Low-temperature-resistant low-smoke halogen-free flame-retardant cable material and preparation method thereof | |
| CN101920549A (en) | Formula and process for preparing wide chlorinated polyethylene waterproof roll material by extrusion molding method | |
| CN105086155A (en) | Thermally conductive polypropylene-based composite material and preparation method thereof | |
| CN109251403B (en) | Flame-retardant sound-insulation composite material for rail transit and preparation method thereof | |
| CN106496765B (en) | A kind of lightweight high specific strength modified polypropylene material and preparation method thereof | |
| CN105860356B (en) | Octagonal cable protection pipe and preparation method thereof | |
| CN108948417B (en) | Compound heat conducting powder, polypropylene composite material and preparation method and application thereof | |
| CN106633344A (en) | Antistatic functional masterbatch, production process thereof, and production process of polyethylene pipes | |
| CN109824965A (en) | A kind of physical blowing polyethylene composition and its preparation method and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070516 Termination date: 20101216 |