CN114597002A - 485 line cable preparation method - Google Patents
485 line cable preparation method Download PDFInfo
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- CN114597002A CN114597002A CN202210212660.0A CN202210212660A CN114597002A CN 114597002 A CN114597002 A CN 114597002A CN 202210212660 A CN202210212660 A CN 202210212660A CN 114597002 A CN114597002 A CN 114597002A
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- 238000002360 preparation method Methods 0.000 title claims description 38
- 239000000463 material Substances 0.000 claims abstract description 80
- 229920001971 elastomer Polymers 0.000 claims abstract description 47
- 239000000806 elastomer Substances 0.000 claims abstract description 47
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052802 copper Inorganic materials 0.000 claims abstract description 38
- 239000010949 copper Substances 0.000 claims abstract description 38
- 239000004020 conductor Substances 0.000 claims abstract description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 70
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 claims description 58
- 239000003795 chemical substances by application Substances 0.000 claims description 46
- 239000004800 polyvinyl chloride Substances 0.000 claims description 38
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 36
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 36
- 239000000843 powder Substances 0.000 claims description 36
- 235000012424 soybean oil Nutrition 0.000 claims description 36
- 239000003549 soybean oil Substances 0.000 claims description 36
- 239000004698 Polyethylene Substances 0.000 claims description 35
- 235000021355 Stearic acid Nutrition 0.000 claims description 35
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 35
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 35
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 claims description 35
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 35
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 35
- -1 polyethylene Polymers 0.000 claims description 35
- 229920000573 polyethylene Polymers 0.000 claims description 35
- 239000008117 stearic acid Substances 0.000 claims description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 31
- 239000002041 carbon nanotube Substances 0.000 claims description 30
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 30
- 239000002994 raw material Substances 0.000 claims description 20
- 238000004898 kneading Methods 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000006116 polymerization reaction Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 5
- 239000003381 stabilizer Substances 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims 3
- 238000001125 extrusion Methods 0.000 claims 1
- 238000005469 granulation Methods 0.000 claims 1
- 230000003179 granulation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 32
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000010410 layer Substances 0.000 description 109
- 239000000126 substance Substances 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 239000002071 nanotube Substances 0.000 description 6
- 239000004597 plastic additive Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- 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
Abstract
The 485-wire cable manufacturing method comprises two wire cores formed by mutually twisting copper conductors respectively coated with insulating layers, a cable core formed by mutually twisting a plurality of wire cores, wherein the outer surface of each wire core is coated with the insulating layer, and the cable core is sequentially coated with a filling layer, a shielding inner sheath layer formed by shielding elastomer sheath materials, a copper strip braided shielding layer and an outer sheath layer from inside to outside. The shielding inner sheath layer of the invention not only plays a role in preventing the inner sheath layer from being waterproof and preventing the copper strip braided shielding layer from being damaged, but also plays a role in generating a first heavy shielding effect on electromagnetic waves of the cable core, and the electromagnetic waves escaping from the shielding inner sheath layer are secondarily shielded on the copper strip braided shielding layer, so that the 485 line cable obtained by the invention has a better electromagnetic wave shielding effect.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a 485-wire cable preparation method.
Background
The 485-wire cable refers to a communication cable designed specifically for RS-458 communication protocols. Has key point requirements on frequency characteristics and anti-interference performance. The 485-wire communication cable is composed of a cable core and an outer protective layer, wherein the cable core is composed of a plurality of (core) optical fibers (generally from a plurality of cores to a plurality of thousands of cores). The radiation and leakage electromagnetic waves of the 485 line communication cable not only seriously interfere the normal work of other electronic equipment, but also cause the functional disorder and the transmission error of the equipment. Reducing the electromagnetic interference of 485-wire communication cables has been a concern.
Therefore, it is necessary to provide a 485-wire cable manufacturing method to solve the deficiencies of the prior art.
Disclosure of Invention
The invention aims to provide a 485-wire cable preparation method which avoids the defects of the prior art. The 485-wire cable preparation method has a good electromagnetic wave shielding effect.
The above object of the present invention is achieved by the following technical measures:
the 485-wire cable manufacturing method comprises the steps that two copper conductors respectively coated with insulating layers are mutually twisted to form a cable core, a plurality of cable cores are mutually twisted to form the cable core, the outer surface of each cable core is coated with the insulating layer, the cable core is sequentially coated with a filling layer, a shielding inner sheath layer, a copper strip braided shielding layer and an outer sheath layer from inside to outside, wherein the filling layer, the shielding inner sheath layer, the copper strip braided shielding layer and the outer sheath layer are formed by shielding elastomer sheath materials.
Preferably, a plurality of convex strips are distributed on the inner surface of the shielding inner sheath layer.
Preferably, the raw materials of the shielding elastomer sheath material comprise polyvinyl chloride with polymerization degree of 1600-2500, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, stearic acid, nano calcium carbonate, lithium fluoride and an electromagnetic shielding agent.
Preferably, the electromagnetic shielding agent contains nano nickel powder and nano iron powder.
Preferably, the electromagnetic shielding agent further comprises nano aluminum powder and carbon nanotubes.
Based on the weight portion, the weight ratio of the components,
polyvinyl chloride: 40-70 parts;
diisononyl phthalate: 25-35 parts;
epoxidized soybean oil: 0.8 to 2.5 portions;
polyethylene wax: 0.1 to 0.4 portion;
stearic acid: 0.1 to 0.3 portion;
nano calcium carbonate: 5-20 parts of a stabilizer;
lithium fluoride: 1-6 parts;
electromagnetic shielding agent: 2 to 10 portions.
Further, the amount of the water-soluble polymer is calculated by weight parts,
polyvinyl chloride: 65 parts of (1);
diisononyl phthalate: 33 parts of (B);
epoxidized soybean oil: 2.0 parts of (B);
polyethylene wax: 0.3 part;
stearic acid: 0.2 part;
nano calcium carbonate: 10 parts of a binder;
lithium fluoride: 4.5 parts;
electromagnetic shielding agent: 8 parts.
The electromagnetic shielding agent comprises, by weight, 20-40 parts of nano nickel powder, 10-15 parts of nano iron powder, 20-40 parts of nano aluminum powder and 3-10 parts of carbon nano tubes.
Further, the electromagnetic shielding agent comprises 28 parts by weight of nano nickel powder, 12 parts by weight of nano iron powder, 26 parts by weight of nano aluminum powder and 8 parts by weight of carbon nano tubes.
Preferably, the preparation of the shielding elastomer sheathing material comprises the steps of:
firstly, putting polyvinyl chloride, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, nano nickel powder and nano iron powder in a high-speed kneading machine, heating to 90-110 ℃, kneading and stirring for 8-15 min to obtain an intermediate material;
step two, adding stearic acid, nano calcium carbonate, nano aluminum powder and carbon nano tubes into the intermediate material, heating to 95-105 ℃, and continuously kneading and stirring for 1-3 min
And step three, placing the mixture in a granulator, controlling the temperature to be 130-150 ℃, extruding and granulating, cutting and cooling to obtain the shielding elastomer sheath material.
The 485-wire cable preparation method comprises the wire cores formed by mutually twisting two copper conductors respectively coated with insulating layers, the cable core formed by mutually twisting a plurality of wire cores, the outer surfaces of the wire cores are coated with the insulating layers, and the cable core is sequentially coated with a filling layer, a shielding inner sheath layer formed by shielding elastomer sheath materials, a copper strip braided shielding layer and an outer sheath layer from inside to outside. The shielding inner sheath layer of the 485-wire cable has the advantages that the inner sheath layer is waterproof, the copper strip braided shielding layer is prevented from being damaged, the first heavy shielding effect on electromagnetic waves of the cable core can be realized, the electromagnetic waves escaping from the shielding inner sheath layer are secondarily shielded on the copper strip braided shielding layer, and therefore the 485-wire cable obtained by the invention has a good electromagnetic wave shielding effect.
Drawings
The invention is further illustrated by means of the attached drawings, the content of which is not in any way limiting.
Fig. 1 is a schematic cross-sectional view of a 485-wire cable.
In fig. 1, there are included:
the cable comprises a cable core 100, an insulating layer 200, a filling layer 300, a shielding inner sheath layer 400, a convex strip 410, a copper strip braided shielding layer 500 and an outer sheath layer 600.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
Example 1.
A485 line cable preparation method comprises two wire cores 100 formed by mutually twisting copper conductors respectively coated with insulating layers 200, a cable core formed by mutually twisting a plurality of wire cores 100, wherein the outer surfaces of the wire cores 100 are coated with the insulating layers 200, and the cable core is sequentially coated with a filling layer 300, a shielding inner sheath layer 400 formed by shielding elastomer sheath materials, a copper strip braided shielding layer 500 and an outer sheath layer 600 from inside to outside.
Wherein, a plurality of raised strips 410 are distributed on the inner surface of the shielding inner sheath layer 400, as shown in fig. 1. It should be noted that, through multiple experiments, it is verified that when the raised line 410 is disposed on the inner surface of the inner shielding sheath layer 400, the shielding effect of the electromagnetic waves generated by the cable core is significantly better than the shielding effect when the inner surface of the inner shielding sheath layer 400 is smooth.
The shielding elastomer sheath material comprises the raw materials of polyvinyl chloride with polymerization degree of 1600-2500, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, stearic acid, nano calcium carbonate, lithium fluoride and an electromagnetic shielding agent.
Wherein the electromagnetic shielding agent contains nano nickel powder, nano iron powder, nano aluminum powder and carbon nano tubes.
It should be noted that, in the present invention, the low resistance property of the nano nickel powder and the nano iron powder is adopted, and the interference field forms an eddy current in the shielding inner sheath layer 400, and generates reflection on the interface between the shielding inner sheath layer 400 and the outer sheath layer 600, absorption in the cable core and loss in the transmission process, so that the continuous transmission of the electromagnetic wave energy is hindered, thereby greatly weakening the field strength value of the interference field in the protected space, and achieving the shielding effect.
The nano nickel powder, the nano iron powder and the nano aluminum powder are distributed on the outer surface of the carbon nano tube, and the carbon nano tube and the adjacent carbon nano tube form a connection point, so that a network channel is formed, and the generated static charge can be rapidly transferred, thereby generating an electrostatic shielding effect.
Based on the weight portion, the weight ratio of the components,
polyvinyl chloride: 40-70 parts;
diisononyl phthalate: 25-35 parts;
epoxidized soybean oil: 0.8 to 2.5 portions;
polyethylene wax: 0.1 to 0.4 portion;
stearic acid: 0.1 to 0.3 portion;
nano calcium carbonate: 5-20 parts of a stabilizer;
lithium fluoride: 1-6 parts;
electromagnetic shielding agent: 2 to 10 portions.
The electromagnetic shielding agent comprises, by weight, 20-40 parts of nano nickel powder, 10-15 parts of nano iron powder, 20-40 parts of nano aluminum powder and 3-10 parts of carbon nano tubes.
The polyvinyl chloride with the polymerization degree of 1600-2500 can improve the elasticity and the flexibility. The diisononyl phthalate, the epoxidized soybean oil and the stearic acid are used as plasticizers to improve the mechanical properties of the polyvinyl chloride such as folding resistance, impact resistance and the like. And polyethylene wax can be used as a lubricant to increase the compatibility with polyvinyl chloride. The stability of the invention is enhanced by the action of the nano calcium carbonate and the epoxidized soybean oil.
The effect of the lithium fluoride of the present invention improves the heat and wear resistance of the shielding inner jacket layer 400.
The shielding inner sheath layer 400 of the shielding elastomer sheath material has the functions of preventing water of the inner sheath layer and preventing the copper strip braided shielding layer 500 from being damaged, and can play a role of generating a first heavy shielding effect on electromagnetic waves of a cable core, and the electromagnetic waves escaping from the shielding inner sheath layer 400 are secondarily shielded on the copper strip braided shielding layer 500, so that the 485-wire cable obtained by the invention has a better electromagnetic wave shielding effect.
Example 2.
A485 line cable preparation method comprises two wire cores 100 formed by mutually twisting copper conductors respectively coated with insulating layers 200, a cable core formed by mutually twisting a plurality of wire cores 100, wherein the outer surfaces of the wire cores 100 are coated with the insulating layers 200, and the cable core is sequentially coated with a filling layer 300, a shielding inner sheath layer 400 formed by shielding elastomer sheath materials, a copper strip braided shielding layer 500 and an outer sheath layer 600 from inside to outside.
Wherein, a plurality of raised strips 410 are distributed on the inner surface of the shielding inner sheath layer 400.
The shielding elastomer sheath material comprises the raw materials of polyvinyl chloride with polymerization degree of 1600-2500, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, stearic acid, nano calcium carbonate, lithium fluoride and an electromagnetic shielding agent.
Wherein the electromagnetic shielding agent contains nano nickel powder, nano iron powder, nano aluminum powder and carbon nano tubes.
Based on the weight portion, the weight ratio of the components,
polyvinyl chloride: 55-65 parts of a stabilizer;
diisononyl phthalate: 30-34 parts;
epoxidized soybean oil: 1.0 to 2.3 portions;
polyethylene wax: 0.2 to 0.35 portion;
stearic acid: 0.15 to 0.25 portion;
nano calcium carbonate: 8-15 parts;
lithium fluoride: 2-5 parts;
electromagnetic shielding agent: 5 to 9 portions.
The electromagnetic shielding agent comprises, by weight, 25-35 parts of nano nickel powder, 12-14 parts of nano iron powder, 22-38 parts of nano aluminum powder and 4-9 parts of carbon nano tubes.
Compared with the embodiment 1, the 485-wire cable manufacturing method of the embodiment has better electromagnetic wave shielding effect, electrostatic shielding effect, water resistance, elasticity and wear resistance than those of the embodiment 1.
Example 3.
A485 line cable preparation method comprises two wire cores 100 formed by mutually twisting copper conductors respectively coated with insulating layers 200, a cable core formed by mutually twisting a plurality of wire cores 100, wherein the outer surfaces of the wire cores 100 are coated with the insulating layers 200, and the cable core is sequentially coated with a filling layer 300, a shielding inner sheath layer 400 formed by shielding elastomer sheath materials, a copper strip braided shielding layer 500 and an outer sheath layer 600 from inside to outside.
Wherein, a plurality of raised strips 410 are distributed on the inner surface of the shielding inner sheath layer 400.
The raw materials of the shielding elastomer sheath material comprise polyvinyl chloride with polymerization degree of 1600, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, stearic acid, nano calcium carbonate, lithium fluoride and an electromagnetic shielding agent.
Wherein the electromagnetic shielding agent contains nano nickel powder, nano iron powder, nano aluminum powder and carbon nano tubes.
Based on the weight portion, the weight ratio of the components,
polyvinyl chloride: 65 parts of (1);
diisononyl phthalate: 33 parts of a binder;
epoxidized soybean oil: 2.0 parts of (B);
polyethylene wax: 0.3 part;
stearic acid: 0.2 part;
nano calcium carbonate: 10 parts of a binder;
lithium fluoride: 4.5 parts;
electromagnetic shielding agent: 8 parts of the raw materials.
The electromagnetic shielding agent comprises, by weight, 28 parts of nano nickel powder, 12 parts of nano iron powder, 26 parts of nano aluminum powder and 8 parts of carbon nano tubes.
The polyvinyl chloride is purchased from Shanghai Kaiyn chemical company Limited, the diisononyl phthalate is purchased from Chaoyun plastic additive company Limited in the city, the polyethylene wax is purchased from Roland New Material company Limited in Yangzhou, the nano calcium carbonate is purchased from Delong trade company Limited in the Zhongshan City, the epoxidized soybean oil is purchased from Shandong Chengyu chemical company Limited, the stearic acid is purchased from Shijiazhuang Chengypeng chemical company Limited, the lithium fluoride is purchased from Shandong Kepler Biotech company Limited, the nano nickel powder is purchased from \28095, the Zhongzhou has a blend New Material company, the nano iron powder is purchased from Hebei Xinta mineral product company Limited, the nano aluminum powder is purchased from Beijing Ten New Material science and technology company Limited, and the nano tube is purchased from Oakhiel trade company (Shenzhen).
Compared with the embodiment 1, the 485-wire cable manufacturing method of the embodiment has better electromagnetic wave shielding effect, electrostatic shielding effect, water resistance, elasticity and wear resistance than those of the embodiment 1.
Example 4.
A485 line cable preparation method comprises two wire cores 100 formed by mutually twisting copper conductors respectively coated with insulating layers 200, a cable core formed by mutually twisting a plurality of wire cores 100, wherein the outer surfaces of the wire cores 100 are coated with the insulating layers 200, and the cable core is sequentially coated with a filling layer 300, a shielding inner sheath layer 400 formed by shielding elastomer sheath materials, a copper strip braided shielding layer 500 and an outer sheath layer 600 from inside to outside.
Wherein, a plurality of raised strips 410 are distributed on the inner surface of the shielding inner sheath layer 400.
The raw materials of the shielding elastomer sheath material comprise polyvinyl chloride with the polymerization degree of 1750, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, stearic acid, nano calcium carbonate, lithium fluoride and an electromagnetic shielding agent.
Wherein the electromagnetic shielding agent contains nano nickel powder, nano iron powder, nano aluminum powder and carbon nano tubes.
Based on the weight portion, the weight ratio of the components,
polyvinyl chloride: 40 parts of a mixture;
diisononyl phthalate: 25 parts of (1);
epoxidized soybean oil: 0.8 part;
polyethylene wax: 0.1 part;
stearic acid: 0.1 part;
nano calcium carbonate: 5 parts of a mixture;
lithium fluoride: 1 part;
electromagnetic shielding agent: and 2 parts of the raw materials.
The electromagnetic shielding agent comprises 20 parts of nano nickel powder, 10 parts of nano iron powder, 20 parts of nano aluminum powder and 3 parts of carbon nano tubes in parts by weight.
The polyvinyl chloride is purchased from Shanghai Kaiyn chemical company Limited, the diisononyl phthalate is purchased from Chaoyun plastic additive company Limited in the city, the polyethylene wax is purchased from Roland New Material company Limited in Yangzhou, the nano calcium carbonate is purchased from Delong trade company Limited in the Zhongshan City, the epoxidized soybean oil is purchased from Shandong Chengyu chemical company Limited, the stearic acid is purchased from Shijiazhuang Chengypeng chemical company Limited, the lithium fluoride is purchased from Shandong Kepler Biotech company Limited, the nano nickel powder is purchased from \28095, the Zhongzhou has a blend New Material company, the nano iron powder is purchased from Hebei Xinta mineral product company Limited, the nano aluminum powder is purchased from Beijing Ten New Material science and technology company Limited, and the nano tube is purchased from Oakhiel trade company (Shenzhen).
Compared with the embodiment 1, the 485-wire cable manufacturing method of the embodiment has better electromagnetic wave shielding effect, electrostatic shielding effect, water resistance, elasticity and wear resistance than those of the embodiment 1.
Example 5.
A485 line cable preparation method comprises two wire cores 100 formed by mutually twisting copper conductors respectively coated with insulating layers 200, a cable core formed by mutually twisting a plurality of wire cores 100, wherein the outer surfaces of the wire cores 100 are coated with the insulating layers 200, and the cable core is sequentially coated with a filling layer 300, a shielding inner sheath layer 400 formed by shielding elastomer sheath materials, a copper strip braided shielding layer 500 and an outer sheath layer 600 from inside to outside.
Wherein, a plurality of raised strips 410 are distributed on the inner surface of the shielding inner sheath layer 400.
The raw materials of the shielding elastomer sheath material comprise polyvinyl chloride with the polymerization degree of 1800, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, stearic acid, nano calcium carbonate, lithium fluoride and an electromagnetic shielding agent.
Wherein the electromagnetic shielding agent contains nano nickel powder, nano iron powder, nano aluminum powder and carbon nano tubes.
Based on the weight portion, the weight ratio of the components,
polyvinyl chloride: 70 parts of (B);
diisononyl phthalate: 35 parts of (B);
epoxidized soybean oil: 2.5 parts;
polyethylene wax: 0.4 part;
stearic acid: 0.3 part;
nano calcium carbonate: 20 parts of (1);
lithium fluoride: 6 parts of (1);
electromagnetic shielding agent: 10 parts.
The electromagnetic shielding agent comprises, by weight, 40 parts of nano nickel powder, 15 parts of nano iron powder, 40 parts of nano aluminum powder and 10 parts of carbon nano tubes.
The polyvinyl chloride is purchased from Shanghai Kaiyn chemical company Limited, the diisononyl phthalate is purchased from Chaoyun plastic additive company Limited in the city, the polyethylene wax is purchased from Roland New Material company Limited in Yangzhou, the nano calcium carbonate is purchased from Delong trade company Limited in the Zhongshan City, the epoxidized soybean oil is purchased from Shandong Chengyu chemical company Limited, the stearic acid is purchased from Shijiazhuang Chengypeng chemical company Limited, the lithium fluoride is purchased from Shandong Kepler Biotech company Limited, the nano nickel powder is purchased from \28095, the Zhongzhou has a blend New Material company, the nano iron powder is purchased from Hebei Xinta mineral product company Limited, the nano aluminum powder is purchased from Beijing Ten New Material science and technology company Limited, and the nano tube is purchased from Oakhiel trade company (Shenzhen).
Compared with the embodiment 1, the 485-wire cable manufacturing method of the embodiment has better electromagnetic wave shielding effect, electrostatic shielding effect, water resistance, elasticity and wear resistance than those of the embodiment 1.
Example 6.
A485 line cable preparation method comprises two wire cores 100 formed by mutually twisting copper conductors respectively coated with insulating layers 200, a cable core formed by mutually twisting a plurality of wire cores 100, wherein the outer surfaces of the wire cores 100 are coated with the insulating layers 200, and the cable core is sequentially coated with a filling layer 300, a shielding inner sheath layer 400 formed by shielding elastomer sheath materials, a copper strip braided shielding layer 500 and an outer sheath layer 600 from inside to outside.
Wherein, a plurality of raised strips 410 are distributed on the inner surface of the shielding inner sheath layer 400.
The raw materials of the shielding elastomer sheath material comprise polyvinyl chloride with polymerization degree of 2500, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, stearic acid, nano calcium carbonate, lithium fluoride and an electromagnetic shielding agent.
Wherein the electromagnetic shielding agent contains nano nickel powder, nano iron powder, nano aluminum powder and carbon nano tubes.
Based on the weight portion, the weight ratio of the components,
polyvinyl chloride: 65 parts of (1);
diisononyl phthalate: 34 parts of (a);
epoxidized soybean oil: 2.3 parts of a mixture;
polyethylene wax: 0.35 part;
stearic acid: 0.25 part;
nano calcium carbonate: 15 parts of (1);
lithium fluoride: 5 parts of a mixture;
electromagnetic shielding agent: 9 parts.
The electromagnetic shielding agent comprises, by weight, 35 parts of nano nickel powder, 14 parts of nano iron powder, 38 parts of nano aluminum powder and 9 parts of carbon nano tubes.
The polyvinyl chloride is purchased from Shanghai Kaiyn chemical company Limited, the diisononyl phthalate is purchased from Chaoyun plastic additive company Limited in the city, the polyethylene wax is purchased from Roland New Material company Limited in Yangzhou, the nano calcium carbonate is purchased from Delong trade company Limited in the Zhongshan City, the epoxidized soybean oil is purchased from Shandong Chengyu chemical company Limited, the stearic acid is purchased from Shijiazhuang Chengypeng chemical company Limited, the lithium fluoride is purchased from Shandong Kepler Biotech company Limited, the nano nickel powder is purchased from \28095, the Zhongzhou has a blend New Material company, the nano iron powder is purchased from Hebei Xinta mineral product company Limited, the nano aluminum powder is purchased from Beijing Ten New Material science and technology company Limited, and the nano tube is purchased from Oakhiel trade company (Shenzhen).
Compared with the embodiment 1, the 485-wire cable manufacturing method of the embodiment has better electromagnetic wave shielding effect, electrostatic shielding effect, water resistance, elasticity and wear resistance than those of the embodiment 1.
Example 7.
A485 line cable preparation method comprises two wire cores 100 formed by mutually twisting copper conductors respectively coated with insulating layers 200, a cable core formed by mutually twisting a plurality of wire cores 100, wherein the outer surfaces of the wire cores 100 are coated with the insulating layers 200, and the cable core is sequentially coated with a filling layer 300, a shielding inner sheath layer 400 formed by shielding elastomer sheath materials, a copper strip braided shielding layer 500 and an outer sheath layer 600 from inside to outside.
Wherein, a plurality of raised strips 410 are distributed on the inner surface of the shielding inner sheath layer 400.
The raw materials of the shielding elastomer sheath material comprise polyvinyl chloride with a polymerization degree of 2100, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, stearic acid, nano calcium carbonate, lithium fluoride and an electromagnetic shielding agent.
Wherein the electromagnetic shielding agent contains nano nickel powder, nano iron powder, nano aluminum powder and carbon nano tubes.
Polyvinyl chloride: 55 parts of (1);
diisononyl phthalate: 30 parts of (1);
epoxidized soybean oil: 1.0 part;
polyethylene wax: 0.2 part;
stearic acid: 0.15 part;
nano calcium carbonate: 8 parts;
lithium fluoride: 2 parts of (1);
electromagnetic shielding agent: 5 parts of the raw materials.
The electromagnetic shielding agent comprises, by weight, 35 parts of nano nickel powder, 14 parts of nano iron powder, 38 parts of nano aluminum powder and 9 parts of carbon nano tubes.
The polyvinyl chloride is purchased from Shanghai Kaiyn chemical company Limited, the diisononyl phthalate is purchased from Chaoyun plastic additive company Limited in the city, the polyethylene wax is purchased from Roland New Material company Limited in Yangzhou, the nano calcium carbonate is purchased from Delong trade company Limited in the Zhongshan City, the epoxidized soybean oil is purchased from Shandong Chengyu chemical company Limited, the stearic acid is purchased from Shijiazhuang Chengypeng chemical company Limited, the lithium fluoride is purchased from Shandong Kepler Biotech company Limited, the nano nickel powder is purchased from \28095, the Zhongzhou has a blend New Material company, the nano iron powder is purchased from Hebei Xinta mineral product company Limited, the nano aluminum powder is purchased from Beijing Ten New Material science and technology company Limited, and the nano tube is purchased from Oakhiel trade company (Shenzhen).
Compared with the embodiment 1, the 485-wire cable manufacturing method of the embodiment has better electromagnetic wave shielding effect, electrostatic shielding effect, water resistance, elasticity and wear resistance than those of the embodiment 1.
Example 8.
A485 line cable preparation method comprises two wire cores 100 formed by mutually twisting copper conductors respectively coated with insulating layers 200, a cable core formed by mutually twisting a plurality of wire cores 100, wherein the outer surfaces of the wire cores 100 are coated with the insulating layers 200, and the cable core is sequentially coated with a filling layer 300, a shielding inner sheath layer 400 formed by shielding elastomer sheath materials, a copper strip braided shielding layer 500 and an outer sheath layer 600 from inside to outside.
Wherein, a plurality of raised strips 410 are distributed on the inner surface of the shielding inner sheath layer 400.
The raw materials of the shielding elastomer sheath material comprise polyvinyl chloride with polymerization degree of 1600, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, stearic acid, nano calcium carbonate, lithium fluoride and an electromagnetic shielding agent.
Wherein the electromagnetic shielding agent contains nano nickel powder, nano iron powder, nano aluminum powder and carbon nano tubes.
Polyvinyl chloride: 53 parts of a binder;
diisononyl phthalate: 32 parts of (1);
epoxidized soybean oil: 1.3 parts;
polyethylene wax: 0.19 part;
stearic acid: 0.17 part;
nano calcium carbonate: 8.5 parts;
lithium fluoride: 2.3 parts of a mixture;
electromagnetic shielding agent: 6 parts.
The electromagnetic shielding agent comprises, by weight, 37 parts of nano nickel powder, 13 parts of nano iron powder, 36 parts of nano aluminum powder and 8.5 parts of carbon nano tubes.
The polyvinyl chloride is purchased from Shanghai Kaiyn chemical company Limited, the diisononyl phthalate is purchased from Chaoyun plastic additive company Limited in the city, the polyethylene wax is purchased from Roland New Material company Limited in Yangzhou, the nano calcium carbonate is purchased from Delong trade company Limited in the Zhongshan City, the epoxidized soybean oil is purchased from Shandong Chengyu chemical company Limited, the stearic acid is purchased from Shijiazhuang Chengypeng chemical company Limited, the lithium fluoride is purchased from Shandong Kepler Biotech company Limited, the nano nickel powder is purchased from \28095, the Zhongzhou has a blend New Material company, the nano iron powder is purchased from Hebei Xinta mineral product company Limited, the nano aluminum powder is purchased from Beijing Ten New Material science and technology company Limited, and the nano tube is purchased from Oakhiel trade company (Shenzhen).
Compared with the embodiment 1, the 485-wire cable manufacturing method of the embodiment has better electromagnetic wave shielding effect, electrostatic shielding effect, water resistance, elasticity and wear resistance than those of the embodiment 1.
Example 9.
A485-wire cable preparation method adopts the raw material proportion of any one of the shielding elastomer sheath materials in the embodiments 3 to 8, and the preparation steps of the shielding elastomer sheath material comprise the following steps:
firstly, putting polyvinyl chloride, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, nano nickel powder and nano iron powder in a high-speed kneading machine, heating to 90-110 ℃, kneading and stirring for 8-15 min to obtain an intermediate material;
step two, adding stearic acid, nano calcium carbonate, nano aluminum powder and carbon nano tubes into the intermediate material, heating to 95-105 ℃, and continuously kneading and stirring for 1-3 min;
and step three, placing the mixture in a granulator, controlling the temperature to be 130-150 ℃, extruding and granulating, cutting and cooling to obtain the shielding elastomer sheath material.
The shielding elastomer sheath material acts on the four-core computer cable, the shielding elastomer sheath material strengthens the flexibility and elasticity of the material on the premise of meeting the insulation full performance of the cable, so that the material can move flexibly without damage, and the four-core computer cable also has the advantages of tear resistance, low temperature resistance, wear resistance, aging resistance and the like.
Example 10.
A485-wire cable preparation method adopts the raw material proportion of any one of the shielding elastomer sheath materials in the embodiments 3 to 8, and the preparation steps of the shielding elastomer sheath material comprise the following steps:
firstly, putting polyvinyl chloride, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, nano nickel powder and nano iron powder in a high-speed kneading machine, heating to 90 ℃, kneading and stirring for 8min to obtain an intermediate material;
step two, adding stearic acid, nano calcium carbonate, nano aluminum powder and carbon nano tubes into the intermediate material, heating to 95 ℃, and continuing kneading and stirring for 1 min;
and step three, placing the mixture in a granulator, controlling the temperature to be 130 ℃, extruding and granulating, cutting and cooling to obtain the shielding elastomer sheath material.
The shielding inner sheath layer 400 of the shielding elastomer sheath material has the functions of preventing water of the inner sheath layer and preventing the copper strip braided shielding layer 500 from being damaged, and can play a role of generating a first heavy shielding effect on electromagnetic waves of a cable core, and the electromagnetic waves escaping from the shielding inner sheath layer 400 are secondarily shielded on the copper strip braided shielding layer 500, so that the 485-wire cable obtained by the invention has a better electromagnetic wave shielding effect.
Example 11.
A485-wire cable preparation method adopts the raw material proportion of any one of the shielding elastomer sheath materials in the embodiments 3 to 8, and the preparation steps of the shielding elastomer sheath material comprise the following steps:
firstly, placing polyvinyl chloride, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, nano nickel powder and nano iron powder in a high-speed kneading machine, heating to 110 ℃, kneading and stirring for 15min to obtain an intermediate material;
step two, adding stearic acid, nano calcium carbonate, nano aluminum powder and carbon nano tubes into the intermediate material, heating to 105 ℃, and continuing kneading and stirring for 3 min;
and step three, placing the mixture in a granulator, controlling the temperature to be 150 ℃, extruding and granulating, cutting and cooling to obtain the shielding elastomer sheath material.
The shielding inner sheath layer 400 of the shielding elastomer sheath material has the functions of preventing water of the inner sheath layer and preventing the copper strip braided shielding layer 500 from being damaged, and can play a role of generating a first heavy shielding effect on electromagnetic waves of a cable core, and the electromagnetic waves escaping from the shielding inner sheath layer 400 are secondarily shielded on the copper strip braided shielding layer 500, so that the 485-wire cable obtained by the invention has a better electromagnetic wave shielding effect.
Example 12.
A485-wire cable preparation method adopts the raw material proportion of any one of the shielding elastomer sheath materials in the embodiments 3 to 8, and the preparation steps of the shielding elastomer sheath material comprise the following steps:
firstly, putting polyvinyl chloride, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, nano nickel powder and nano iron powder in a high-speed kneading machine, heating to 100 ℃, kneading and stirring for 10min to obtain an intermediate material;
step two, adding stearic acid, nano calcium carbonate, nano aluminum powder and carbon nano tubes into the intermediate material, heating to 103 ℃, and continuing kneading and stirring for 2.5 min;
and step three, placing the mixture in a granulator, controlling the temperature to be 140 ℃, extruding and granulating, cutting and cooling to obtain the shielding elastomer sheath material.
The shielding inner sheath layer 400 of the shielding elastomer sheath material has the functions of preventing water of the inner sheath layer and preventing the copper strip braided shielding layer 500 from being damaged, and can play a role of generating a first heavy shielding effect on electromagnetic waves of a cable core, and the electromagnetic waves escaping from the shielding inner sheath layer 400 are secondarily shielded on the copper strip braided shielding layer 500, so that the 485-wire cable obtained by the invention has a better electromagnetic wave shielding effect.
The sheath material sample group of the 485-wire cable preparation method is prepared by the raw material proportioning of the examples 3-8 and the process of obtaining the shielding elastomer sheath material of the examples 10-12.
TABLE 1 485 line Cable preparation method sample set
| Sample set | Raw material ratio | Preparation method |
| Sample 1 | Example 3 | Example 11 |
| Sample 2 | Example 4 | Example 11 |
| Sample 3 | Example 5 | Example 11 |
| Sample No. 4 | Example 6 | Example 11 |
| Sample No. 5 | Example 7 | Example 11 |
| Sample No. 6 | Example 8 | Example 11 |
| Sample 8 | Example 5 | Example 10 |
| Sample 9 | Example 5 | Example 10 |
| Sample 10 | Example 7 | Example 12 |
| Sample 11 | Example 7 | Example 12 |
Under the same other experimental conditions, table 2 shows that the sheath material of the shielding elastomer of samples 1 to 11 is subjected to performance test, and simultaneously, samples 1 to 11 are respectively prepared into 485-wire cables for electromagnetic capability test, and the relevant performance is as shown in table 2:
TABLE 2 correlation of test performance of corresponding samples after preparation into cables
The tensile strength and the elongation at break are tested according to GB/T528-1998 regulations and the electromagnetic shielding capability is tested according to 12190-90 regulations, and the tensile strength and the elongation of the shielding elastomer sheath material obtained by matching the polyvinyl chloride and other components within the polymerization degree range are better from table 2, and can meet the requirements of the flexibility and the elasticity of 485-wire cables. The 485 line cable has better electromagnetic shielding performance.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A485 line cable preparation method is characterized in that: including two sinle silks that the copper conductor that the cladding has the insulating layer respectively intertwists the constitution, the cable core that many sinle silks intertwist the constitution each other, sinle silk surface cladding has the insulating layer, the cable core is outer by interior and outer in proper order the cladding have filling layer, by shielding inner sheath layer, copper strips woven shield layer and the oversheath layer that shielding elastomer sheath material constitutes.
2. The 485-wire cable preparation method according to claim 1, wherein: a plurality of raised lines are distributed on the inner surface of the shielding inner sheath layer.
3. The 485-wire cable preparation method according to claim 1 or 2, wherein: the shielding elastomer sheath material comprises the raw materials of polyvinyl chloride with polymerization degree of 1600-2500, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, stearic acid, nano calcium carbonate, lithium fluoride and an electromagnetic shielding agent.
4. The 485-wire cable preparation method according to claim 3, wherein: the electromagnetic shielding agent contains nano nickel powder and nano iron powder.
5. The 485-wire cable preparation method according to claim 4, wherein: the electromagnetic shielding agent also contains nano aluminum powder and carbon nano tubes.
6. The 485-wire cable preparation method according to claim 5, wherein: based on the weight portion, the weight ratio of the components,
polyvinyl chloride: 40-70 parts;
diisononyl phthalate: 25-35 parts;
epoxidized soybean oil: 0.8 to 2.5 portions;
polyethylene wax: 0.1 to 0.4 portion;
stearic acid: 0.1 to 0.3 portion;
nano calcium carbonate: 5-20 parts of a stabilizer;
lithium fluoride: 1-6 parts;
electromagnetic shielding agent: 2 to 10 portions.
7. The 485-wire cable preparation method according to claim 6, wherein: based on the weight portion, the weight ratio of the components,
polyvinyl chloride: 65 parts of (1);
diisononyl phthalate: 33 parts of (B);
epoxidized soybean oil: 2.0 parts of (B);
polyethylene wax: 0.3 part;
stearic acid: 0.2 part;
nano calcium carbonate: 10 parts of a binder;
lithium fluoride: 4.5 parts;
electromagnetic shielding agent: 8 parts of the raw materials.
8. The 485-wire cable preparation method according to claim 7, wherein: the electromagnetic shielding agent comprises, by weight, 20-40 parts of nano nickel powder, 10-15 parts of nano iron powder, 20-40 parts of nano aluminum powder and 3-10 parts of carbon nano tubes.
9. The 485-wire cable preparation method according to claim 8, wherein: the electromagnetic shielding agent comprises, by weight, 28 parts of nano nickel powder, 12 parts of nano iron powder, 26 parts of nano aluminum powder and 8 parts of carbon nano tubes.
10. The 485-wire cable preparation method according to claim 9, wherein the preparation of the shielding elastomer sheathing material comprises the steps of:
firstly, putting polyvinyl chloride, diisononyl phthalate, epoxidized soybean oil, polyethylene wax, nano nickel powder and nano iron powder in a high-speed kneading machine, heating to 90-110 ℃, kneading and stirring for 8-15 min to obtain an intermediate material;
step two, adding stearic acid, nano calcium carbonate, nano aluminum powder and carbon nano tubes into the intermediate material, heating to 95-105 ℃, and continuously kneading and stirring for 1-3 min;
and step three, placing the mixture into a granulator, controlling the temperature to be 130-150 ℃, performing extrusion granulation, cutting and cooling to obtain the shielding elastomer sheath material.
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