CN112531601A - Composite material cable conduit - Google Patents
Composite material cable conduit Download PDFInfo
- Publication number
- CN112531601A CN112531601A CN202011525827.6A CN202011525827A CN112531601A CN 112531601 A CN112531601 A CN 112531601A CN 202011525827 A CN202011525827 A CN 202011525827A CN 112531601 A CN112531601 A CN 112531601A
- Authority
- CN
- China
- Prior art keywords
- melting
- point polypropylene
- polypropylene
- low
- shielding layer
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 26
- 239000004743 Polypropylene Substances 0.000 claims abstract description 50
- -1 polypropylene Polymers 0.000 claims abstract description 50
- 229920001155 polypropylene Polymers 0.000 claims abstract description 50
- 238000002844 melting Methods 0.000 claims abstract description 18
- 230000008018 melting Effects 0.000 claims abstract description 16
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 15
- 239000004917 carbon fiber Substances 0.000 claims abstract description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000011231 conductive filler Substances 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000007598 dipping method Methods 0.000 claims abstract description 3
- 238000007711 solidification Methods 0.000 claims abstract description 3
- 230000008023 solidification Effects 0.000 claims abstract description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 7
- 230000005670 electromagnetic radiation Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
Classifications
-
- 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
- H02G3/0406—Details thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/042—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with carbon fibres
-
- 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
- H02G3/0462—Tubings, i.e. having a closed section
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0047—Casings being rigid plastic containers having conductive particles, fibres or mesh embedded therein
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/009—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive fibres, e.g. metal fibres, carbon fibres, metallised textile fibres, electro-conductive mesh, woven, non-woven mat, fleece, cross-linked
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0098—Shielding materials for shielding electrical cables
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- 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
Abstract
The invention discloses a composite material cable conduit, which comprises a high-melting-point polypropylene inner pipe 1 and a composite material shielding layer 2 coated on the surface of the inner pipe, and the concrete forming steps are as follows: (1) putting the low-melting-point polypropylene and the conductive filler into a high-speed mixer for fully mixing, and then extruding and granulating; (2) putting the high-melting-point polypropylene into a double-screw extruder for melt extrusion to prepare a high-melting-point polypropylene inner tube 1; (3) and (3) the carbon fiber is subjected to melting, dipping and modifying low-melting-point polypropylene, then the carbon fiber is wound on the surface of the high-melting-point polypropylene inner tube, and the composite material shielding layer 2 is obtained through solidification and molding. The composite cable duct prepared by the invention has excellent shielding performance, and simultaneously strengthens the annular direction of the cable duct, so that the composite cable duct has higher strength and longer service life.
Description
Technical Field
The invention belongs to the field of cable ducts, and relates to a composite cable duct.
Background
With the progress of the times, the intelligentization and accuracy control of various intelligent and scientific electronic products are higher and higher, and the control depends on the transmission efficiency and the transmission accuracy of transmission signals to a great extent. At present, a common cable conduit does not have a shielding function, and various transmission lines installed in the cable conduit can generate electromagnetic radiation in the signal transmission process, so that on one hand, signal leakage can be caused, transmission loss is increased, and transmission distance and transmission efficiency are reduced; on the other hand, electromagnetic radiation can cause interference, and even permanent damage, to signals, people, and things in its vicinity.
Disclosure of Invention
The present invention aims to address the above problems by providing a composite cable duct.
In order to solve the technical problems, the technical route of the invention is as follows:
a composite material cable conduit comprises a high melting point polypropylene inner pipe and a shielding layer coated on the surface of the inner pipe;
the shielding layer is a carbon fiber reinforced modified polypropylene layer;
the modified polypropylene is low-melting-point polypropylene for shielding, and conductive fillers are added into the low-melting-point polypropylene.
Preferably, the thickness of the shielding layer is 1-10 mm.
Preferably, the melting points of the low melting point polypropylene and the high melting point polypropylene differ by 15 to 30 ℃.
Preferably, the conductive filler added to the modified polypropylene is one of gold, silver, copper, nickel, carbon black and graphite powder.
Further, the composite material cable duct comprises the following molding steps:
step (1): putting the low-melting-point polypropylene and the conductive filler into a high-speed mixer for fully mixing, and then extruding and granulating;
step (2): putting the high-melting-point polypropylene into a double-screw extruder for melt extrusion to prepare a high-melting-point polypropylene inner tube;
and (3): and (3) the carbon fiber is subjected to melting, dipping and modifying low-melting-point polypropylene, then the carbon fiber is wound on the surface of the high-melting-point polypropylene inner tube, and the shielding layer is obtained through solidification and molding.
The invention has the beneficial effects that:
the cable conduit shielding layer provided by the invention adopts the carbon fiber reinforced modified polypropylene composite material, the carbon fiber has good shielding performance, and the polypropylene matrix also has shielding performance due to the addition of the conductive filler, so that the composite material has better shielding effect and can effectively shield electromagnetic radiation.
The carbon fiber has good mechanical property, and the carbon fiber reinforced polypropylene composite material can play a role in protecting the polypropylene inner tube.
The difference in melting point between the high melting point polypropylene and the low melting point polypropylene provides sufficient processing operability.
Drawings
Fig. 1 is a schematic view of a composite cable duct structure.
Labeled as: 1. a polypropylene inner tube; 2. a composite shielding layer.
Detailed Description
In order to better understand the present invention, the following examples are further provided to illustrate the present invention, but the present invention is not limited to the following examples.
Example 1
The 12K carbon fiber is used as a reinforcing material to prepare the polypropylene composite cable conduit with the diameter of 200mm and the shielding function, and the preparation process comprises the following steps:
a composite material cable conduit comprises a high melting point polypropylene inner pipe 1 and a composite material shielding layer 2 coated on the surface of the inner pipe;
the shielding layer 2 is a carbon fiber reinforced modified polypropylene layer;
the modified polypropylene is low-melting-point polypropylene for shielding, and conductive fillers are added into the low-melting-point polypropylene.
The preparation steps are as follows:
step (1): putting polypropylene with a melting point of 165 ℃ and silver powder with 800 meshes into a high-speed mixer for fully mixing, and then extruding and granulating;
step (2): putting polypropylene with a melting point of 185 ℃ into a double-screw extruder for melt extrusion, traction and shaping to prepare a high-melting-point polypropylene inner tube 1;
and (3): and (2) the modified polypropylene prepared in the step (1) is soaked in the molten carbon fiber tows by a melting mode and then wound on the surface of the high-melting-point polypropylene inner pipe, and the composite material shielding layer 2 is obtained through curing and forming, so that the composite cable conduit with the shielding function is manufactured.
In the embodiment, the thickness of the inner pipe of the cable guide pipe is 8mm, and the thickness of the shielding layer is 2 mm.
Claims (5)
1. A composite material cable duct, characterized by: comprises a high melting point polypropylene inner pipe and a shielding layer coated on the surface of the inner pipe;
the shielding layer is a carbon fiber reinforced modified polypropylene layer;
the modified polypropylene is low-melting-point polypropylene for shielding, and conductive fillers are added into the low-melting-point polypropylene.
2. A composite cable guide according to claim 1, wherein: the thickness of the shielding layer is 1-10 mm.
3. A composite cable guide according to claim 1, wherein: the melting points of the low-melting point polypropylene and the high-melting point polypropylene are different by 15-30 ℃.
4. A composite cable guide according to claim 1, wherein: the conductive filler added into the modified polypropylene is one of gold, silver, copper, nickel, carbon black and graphite powder.
5. A composite cable guide according to claim 1, wherein: the method comprises the following molding steps:
step (1): putting the low-melting-point polypropylene and the conductive filler into a high-speed mixer for fully mixing, and then extruding and granulating;
step (2): putting the high-melting-point polypropylene into a double-screw extruder for melt extrusion to prepare a high-melting-point polypropylene inner tube;
and (3): and (3) the carbon fiber is subjected to melting, dipping and modifying low-melting-point polypropylene, then the carbon fiber is wound on the surface of the high-melting-point polypropylene inner tube, and the shielding layer is obtained through solidification and molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011525827.6A CN112531601A (en) | 2020-12-22 | 2020-12-22 | Composite material cable conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011525827.6A CN112531601A (en) | 2020-12-22 | 2020-12-22 | Composite material cable conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112531601A true CN112531601A (en) | 2021-03-19 |
Family
ID=75002445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011525827.6A Pending CN112531601A (en) | 2020-12-22 | 2020-12-22 | Composite material cable conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112531601A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2452465A1 (en) * | 1973-11-08 | 1975-05-15 | Int Standard Electric Corp | SHIELDED, LONGITUDINAL WATERPROOF TELEPHONE CABLE |
| CN103840420A (en) * | 2014-03-12 | 2014-06-04 | 国家电网公司 | Modified polypropylene composite pipe for protecting high-voltage cables |
| CN103944132A (en) * | 2014-04-29 | 2014-07-23 | 国家电网公司 | Modified polypropylene composite tubular product for protecting high-voltage cable |
| CN104725717A (en) * | 2014-11-27 | 2015-06-24 | 上海邦中高分子材料有限公司 | Internal-pressure-resistant polypropylene pipe and preparation method thereof |
| CN204538631U (en) * | 2015-04-30 | 2015-08-05 | 赵朝端 | Low friction modified polypropylene/fiberglass compound electric solenoid |
| CN105452687A (en) * | 2013-08-09 | 2016-03-30 | 日本发条株式会社 | Outer casing for control cable, method for manufacturing outer casing for control cable, and control cable |
| CN106594402A (en) * | 2016-12-06 | 2017-04-26 | 太仓大唐化纤厂 | Carbon fiber-containing corrosion-resistant composite tubular product |
| CN107078492A (en) * | 2014-07-25 | 2017-08-18 | Abb瑞士股份有限公司 | Electrical tubular insulator for high voltage transmission line |
| CN108527764A (en) * | 2017-03-03 | 2018-09-14 | 朗盛德国有限责任公司 | Method for producing composite component |
| CN109203449A (en) * | 2018-07-12 | 2019-01-15 | 东华大学 | A kind of preparation method of low porosity 3D printing product |
| CN110591216A (en) * | 2019-09-25 | 2019-12-20 | 中广核高新核材科技（苏州）有限公司 | Shielding material for conductive polypropylene power cable |
| CN110774701A (en) * | 2018-07-27 | 2020-02-11 | 日立Ge核能株式会社 | High density polyethylene pipe, joint and sealing material |
| EP3667683A1 (en) * | 2018-12-10 | 2020-06-17 | Nexans | Cable |
-
2020
- 2020-12-22 CN CN202011525827.6A patent/CN112531601A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2452465A1 (en) * | 1973-11-08 | 1975-05-15 | Int Standard Electric Corp | SHIELDED, LONGITUDINAL WATERPROOF TELEPHONE CABLE |
| CN105452687A (en) * | 2013-08-09 | 2016-03-30 | 日本发条株式会社 | Outer casing for control cable, method for manufacturing outer casing for control cable, and control cable |
| CN103840420A (en) * | 2014-03-12 | 2014-06-04 | 国家电网公司 | Modified polypropylene composite pipe for protecting high-voltage cables |
| CN103944132A (en) * | 2014-04-29 | 2014-07-23 | 国家电网公司 | Modified polypropylene composite tubular product for protecting high-voltage cable |
| CN107078492A (en) * | 2014-07-25 | 2017-08-18 | Abb瑞士股份有限公司 | Electrical tubular insulator for high voltage transmission line |
| CN104725717A (en) * | 2014-11-27 | 2015-06-24 | 上海邦中高分子材料有限公司 | Internal-pressure-resistant polypropylene pipe and preparation method thereof |
| CN204538631U (en) * | 2015-04-30 | 2015-08-05 | 赵朝端 | Low friction modified polypropylene/fiberglass compound electric solenoid |
| CN106594402A (en) * | 2016-12-06 | 2017-04-26 | 太仓大唐化纤厂 | Carbon fiber-containing corrosion-resistant composite tubular product |
| CN108527764A (en) * | 2017-03-03 | 2018-09-14 | 朗盛德国有限责任公司 | Method for producing composite component |
| CN109203449A (en) * | 2018-07-12 | 2019-01-15 | 东华大学 | A kind of preparation method of low porosity 3D printing product |
| CN110774701A (en) * | 2018-07-27 | 2020-02-11 | 日立Ge核能株式会社 | High density polyethylene pipe, joint and sealing material |
| EP3667683A1 (en) * | 2018-12-10 | 2020-06-17 | Nexans | Cable |
| CN110591216A (en) * | 2019-09-25 | 2019-12-20 | 中广核高新核材科技（苏州）有限公司 | Shielding material for conductive polypropylene power cable |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210319 |