CN203895133U - Irradiation crosslinking ETFE insulation composite installation wire for aerospace - Google Patents
Irradiation crosslinking ETFE insulation composite installation wire for aerospace Download PDFInfo
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- CN203895133U CN203895133U CN201420152053.0U CN201420152053U CN203895133U CN 203895133 U CN203895133 U CN 203895133U CN 201420152053 U CN201420152053 U CN 201420152053U CN 203895133 U CN203895133 U CN 203895133U
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Abstract
The utility model provides an irradiation crosslinking ETFE insulation composite installation wire for aerospace. The composite installation wire comprises a conductor, an insulating layer, a belting layer and a composite insulating layer. The conductor is made of a plurality of silvering copper wires which are intertwisted. The insulating layer wraps the conductor. The insulating layer is made of polytetrafluoroethylene materials. The belting layer wraps the insulating layer. The belting layer is formed through lapping of a polyimide film with a surface coated with hot melt adhesion agents and hot melting sealing. The hot melt adhesion agents are PTFE, PFA, FEP or a polyimide binder. The composite insulating layer wraps the belting layer. The composite insulating layer is formed through irradiation crosslinking and extrusion of ethene-tetrafluoroethene copolymer ETFE materials. The composite installation wire has performances of light weight, high electrical conductivity, moisture resistance, hydrolysis resistance, wear resistance, irradiation resistance and flame resistance, has performances of string arc resistance and oxygen atom resistance, and achieves the function of separation of insulating layers.
Description
Technical field
The utility model relates to Power-line technology field, relates in particular to cross-linking radiation ETFE insulated compound hookup wire for a kind of Aero-Space.
Background technology
Application at aerospace field electric wire is also in initial stage developing stage, main cause is that aerospace environment is had relatively high expectations to electric wire, Aero-Space electric wire environment for use is severe, often need moisture resistance, hydrolysis, wear-resisting, resistance to irradiation, fire-retardant, also want ability string arc, between oxytolerant atom, insulating barrier, can not peel off, and require weight light as much as possible.
Current aircraft wire cable has two large series: a kind of is the wrapped sintering insulated cable of polyimide-fluorine 46 laminated film, is mainly used in helicopter, domesticizes, consider electric wire quality, laminated film is import still, and the U.S. do not advised adopting aspect naval, waits from now on to observe; Another kind is cross-linking radiation ethylene-tetrafluoroethylene copolymer insulated cable, be modern age dual-use large aircraft use more kind, but manufacturing technology difficulty is larger, is difficult for preparation.
Utility model content
The utility model provides cross-linking radiation ETFE insulated compound hookup wire for a kind of Aero-Space, there is lightweight, high conduction, moisture resistance, hydrolysis, wear-resisting, resistance to irradiation, fire-retardant performance, and possess the performance of the arc of resistance to string, oxytolerant atom, and realize the function that can peel off between insulating barrier.
A cross-linking radiation ETFE insulated compound hookup wire for Aero-Space, comprises conductor, insulating barrier, belting layer, composite insulation layer; Wherein, conductor adopts many stranded the making of silver-gilt copper wire; Insulating barrier is coated on conductor outside, and insulating barrier adopts polytetrafluoroethylmaterial material to make; Belting layer is coated on insulating barrier outside, and belting layer adopts wrapped and heat-sealable the forming of the polyimide film of surface-coated hot melt adhesion agent, and described hot melt adhesion agent is PTFE, PFA, FEP or polyimide binder; Composite insulation layer is coated on belting layer outside, and composite insulation layer adopts ethylene-tetrafluoroethylene copolymer ETFE material to carry out cross-linking radiation and extrude forming.
Preferably, composite insulation layer is double insulating layer, inner insulating layer and external insulation layer all adopt ethylene-tetrafluoroethylene copolymer ETFE material to carry out cross-linking radiation and extrude forming, or, inner insulating layer adopts Kynoar PVDF material to extrude and forms, and external insulation layer all adopts ethylene-tetrafluoroethylene copolymer ETFE material to carry out cross-linking radiation and extrude forming.
Preferably, inner insulating layer adopts double-deck extruder to be once extruded into external insulation layer or adopts an individual layer extruder minute double-layer separate don't push to become.
Preferably, the extrusion temperature of extruder is 200 ℃-290 ℃.
Preferably, the polyimide film of belting layer by pyromellitic acid anhydride PMDA and diaminodiphenyl ether ODA in solvent dimethylacetylamide DMAC through polycondensation and salivate film forming, then form through imidization.
Preferably, the single or double at polyimide film applies hot melt adhesion agent.
Preferably, in belting layer, carrying out heat-sealable temperature is 240 ℃-350 ℃.
Preferably, the thickness of composite insulation layer is 0.1-0.15mm.
Preferably, composite insulation layer adopts ethylene-tetrafluoroethylene copolymer ETFE material under β, gamma-rays, to carry out cross-linking radiation.
Conductor in the utility model adopts silver-plated copper conductor, can reduce sheet resistance, has improved on the whole the conductive capability of conductor; Because belting layer is between insulating barrier and composite insulation layer, belting layer adopts the polyimide film of surface-coated hot melt adhesion agent, at heat-sealable temperature, the fusing of hot melt adhesion agent, polyimide film can be put up easily wrapped on the surface of polytetrafluoroethylene, thereby realized the function that insulating barrier is peeled off each other; Insulating barrier adopts polytetrafluoroethylmaterial material to make, belting layer adopts wrapped and heat-sealable the forming of the polyimide film of surface-coated hot melt adhesion agent, composite insulation layer adopts ethylene-tetrafluoroethylene copolymer ETFE material to carry out cross-linking radiation and extrude forming, polytetrafluoroethylene, polyimide film, these three kinds of materials of ethylene-tetrafluoroethylene copolymer ETFE all have good high flame retardant, moisture resistance, hydrolysis, wear-resisting, radiotolerant performance, reach aerospace field for the requirement of electric wire harshness; Polyimides at high temperature makes polyimide film by imidization, has good mechanical property, electrical property, chemical stability and very high radiation resistance, has overcome simple the polyimides not arc of resistance to string, oxytolerant atom not; Because insulating barrier, belting layer, composite insulation layer in the utility model have adopted respectively polytetrafluoroethylene, polyimide film and ethylene-tetrafluoroethylene copolymer ETFE, be low density material, the in the situation that of same thickness, can make conductor with respect to common cable, weight saving 1/3rd.
Accompanying drawing explanation
Fig. 1 is the cross-sectional structure schematic diagram of cross-linking radiation ETFE insulated compound hookup wire for a kind of Aero-Space that the utility model proposes.
Embodiment
As shown in Figure 1, Fig. 1 is the cross-sectional structure schematic diagram of cross-linking radiation ETFE insulated compound hookup wire for a kind of Aero-Space that the utility model proposes.
With reference to Fig. 1, the utility model provides cross-linking radiation ETFE insulated compound hookup wire for a kind of Aero-Space, comprises conductor 1, insulating barrier 2, belting layer 3, composite insulation layer 4.
Conductor 1 adopts many stranded the making of silver-gilt copper wire.Insulating barrier 2 is coated on conductor 1 outside, and insulating barrier 2 adopts polytetrafluoroethylmaterial material to make.
Belting layer 3 is coated on insulating barrier 2 outsides, and belting layer 3 adopts wrapped and heat-sealable the forming of the polyimide film of surface-coated hot melt adhesion agents, and described hot melt adhesion agent is PTFE, PFA, FEP or polyimide binder; Particularly, the polyimide film of belting layer 3 by pyromellitic acid anhydride PMDA and diaminodiphenyl ether ODA in solvent dimethylacetylamide DMAC through polycondensation and salivate film forming, through imidization, form again, there is good mechanical property, electrical property, chemical stability and very high radiation resistance, overcome simple the polyimides not arc of resistance to string, oxytolerant atom not; Further, single or double at polyimide film applies hot melt adhesion agent, whole belting layer 3 can be bonded to each other together with the polytetrafluoroethylmaterial material of insulating barrier 2 easily, and employing dual coating hot melt adhesion agent, not only guaranteed the bonding of belting layer 3 and insulating barrier 2, also guaranteed that belting layer 3 is mutually bonding in wrapped process, guaranteed the stability of Aero-Space with cross-linking radiation ETFE insulated compound hookup wire; Further, in belting layer 3, carrying out heat-sealable temperature is 240 ℃-350 ℃, at this temperature, can PTFE, PFA, FEP or polyimide binder are fusible, polyimide film and insulating barrier 2, composite insulation layer 4 are sticked together, and don't can make peeling force excessive.
Composite insulation layer 4 is coated on belting layer 3 outsides, and composite insulation layer 4 adopts ethylene-tetrafluoroethylene copolymer ETFE material to carry out cross-linking radiation and extrude forming; Particularly, composite insulation layer 4 is double insulating layer, inner insulating layer and external insulation layer all adopt ethylene-tetrafluoroethylene copolymer ETFE material to carry out cross-linking radiation and extrude forming, or, inner insulating layer adopts Kynoar PVDF material to extrude and forms, external insulation layer all adopts ethylene-tetrafluoroethylene copolymer ETFE material to carry out cross-linking radiation and extrude forming, composite insulation layer adopts double-layer insulating structure, more strengthen compound hookup wire insulation effect, can more adapt to the severe complex environment in aircraft operation place; And internal layer in double-layer insulating structure adopts Kynoar PVDF material, Kynoar PVDF has that obdurability, low-friction coefficient, corrosion resistance are strong, resistance to ag(e)ing, weather, the features such as radiation-resistant property is good, form double-layer insulating structure with ethylene-tetrafluoroethylene copolymer ETFE, more met the requirement of Aero-Space with line; Further, inner insulating layer adopts double-deck extruder to be once extruded into external insulation layer or adopts an individual layer extruder minute double-layer separate don't push to become, adopt double-deck extruder to be once extruded into can to accelerate the preparation process of cross-linking radiation ETFE insulated compound hookup wire for Aero-Space, thickness separately of external insulation layer and the situation that occurs can process in time interior external insulation layer laminating time in adopting individual layer extruder minute double-layer separate don't push to become can accurately to control; Further, the extrusion temperature of extruder is 200 ℃-290 ℃, and at this temperature, two-layer insulation system, carries out the process that plastics are extruded at double-deck extruder smoothly, is evenly coated on belting layer 3 outsides; Further, the thickness of composite insulation layer 4 is 0.1-0.15mm, meet aerospace field for compound hookup wire requirement in, reduced as much as possible the thickness of composite insulation layer, the weight of compound hookup wire integral body is declined, reduce the load capacity of aircraft; Further, composite insulation layer 4 adopts ethylene-tetrafluoroethylene copolymer ETFE material under β, gamma-rays, to carry out cross-linking radiation, by adding crosslinking agent or realizing macromolecular cross-linking reaction by irradiation, linear polymer is become have the technology of the polymer of three-dimensional space network configuration, prepared composite insulation layer 4 has good anti-flammability, high-fire resistance and outstanding Physical Mechanical, by cross-linking radiation, react and can improve the one-tenth charcoal of polymer, and then improve its anti-flammability.
Conductor in the utility model adopts silver-plated copper conductor, can reduce sheet resistance, has improved on the whole the conductive capability of conductor; Because belting layer is between insulating barrier and composite insulation layer, belting layer adopts the polyimide film of surface-coated hot melt adhesion agent, at heat-sealable temperature, the fusing of hot melt adhesion agent, polyimide film can be put up easily wrapped on the surface of polytetrafluoroethylene, thereby realized the function that insulating barrier is peeled off each other; Insulating barrier adopts polytetrafluoroethylmaterial material to make, belting layer adopts wrapped and heat-sealable the forming of the polyimide film of surface-coated hot melt adhesion agent, composite insulation layer adopts ethylene-tetrafluoroethylene copolymer ETFE material to carry out cross-linking radiation and extrude forming, polytetrafluoroethylene, polyimide film, these three kinds of materials of ethylene-tetrafluoroethylene copolymer ETFE all have good high flame retardant, moisture resistance, hydrolysis, wear-resisting, radiotolerant performance, reach aerospace field for the requirement of electric wire harshness; Polyimides at high temperature makes polyimide film by imidization, has good mechanical property, electrical property, chemical stability and very high radiation resistance, has overcome simple the polyimides not arc of resistance to string, oxytolerant atom not; Because insulating barrier, belting layer, composite insulation layer in the utility model have adopted respectively polytetrafluoroethylene, polyimide film and ethylene-tetrafluoroethylene copolymer ETFE, be low density material, the in the situation that of same thickness, can make conductor with respect to common cable, weight saving 1/3rd.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.
Claims (8)
1. a cross-linking radiation ETFE insulated compound hookup wire for Aero-Space, is characterized in that, comprises conductor (1), insulating barrier (2), belting layer (3), composite insulation layer (4); Wherein, conductor (1) adopts many stranded the making of silver-gilt copper wire; Insulating barrier (2) is coated on conductor (1) outside, and insulating barrier (2) adopts polytetrafluoroethylmaterial material to make; Belting layer (3) is coated on insulating barrier (2) outside, and belting layer (3) adopts wrapped and heat-sealable the forming of the polyimide film of surface-coated hot melt adhesion agent, and described hot melt adhesion agent is PTFE, PFA, FEP or polyimide binder; Composite insulation layer (4) is coated on belting layer (3) outside, and composite insulation layer (4) adopts ethylene-tetrafluoroethylene copolymer ETFE material to carry out cross-linking radiation and extrude forming.
2. cross-linking radiation ETFE insulated compound hookup wire for Aero-Space as claimed in claim 1, it is characterized in that, composite insulation layer (4) is double insulating layer, inner insulating layer and external insulation layer all adopt ethylene-tetrafluoroethylene copolymer ETFE material to carry out cross-linking radiation and extrude forming, or, inner insulating layer adopts Kynoar PVDF material to extrude and forms, and external insulation layer all adopts ethylene-tetrafluoroethylene copolymer ETFE material to carry out cross-linking radiation and extrude forming.
3. cross-linking radiation ETFE insulated compound hookup wire for Aero-Space as claimed in claim 1, is characterized in that, inner insulating layer adopts double-deck extruder to be once extruded into external insulation layer or adopts an individual layer extruder minute double-layer separate don't push to become.
4. cross-linking radiation ETFE insulated compound hookup wire for Aero-Space as claimed in claim 3, is characterized in that, the extrusion temperature of extruder is 200 ℃-290 ℃.
5. Aero-Space cross-linking radiation ETFE insulated compound hookup wire as described in any one in claim 1-4, is characterized in that, at the single or double coating hot melt adhesion agent of polyimide film.
6. cross-linking radiation ETFE insulated compound hookup wire for Aero-Space as claimed in claim 5, is characterized in that, in belting layer (3), carrying out heat-sealable temperature is 240 ℃-350 ℃.
7. cross-linking radiation ETFE insulated compound hookup wire for the Aero-Space as described in any one in claim 1-4, is characterized in that, the thickness of composite insulation layer (4) is 0.1-0.15mm.
8. cross-linking radiation ETFE insulated compound hookup wire for the Aero-Space as described in any one in claim 1-4, is characterized in that, composite insulation layer (4) adopts ethylene-tetrafluoroethylene copolymer ETFE material under β, gamma-rays, to carry out cross-linking radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152053.0U CN203895133U (en) | 2014-03-28 | 2014-03-28 | Irradiation crosslinking ETFE insulation composite installation wire for aerospace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152053.0U CN203895133U (en) | 2014-03-28 | 2014-03-28 | Irradiation crosslinking ETFE insulation composite installation wire for aerospace |
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| Publication Number | Publication Date |
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| CN203895133U true CN203895133U (en) | 2014-10-22 |
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| CN201420152053.0U Expired - Fee Related CN203895133U (en) | 2014-03-28 | 2014-03-28 | Irradiation crosslinking ETFE insulation composite installation wire for aerospace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392778A (en) * | 2014-11-21 | 2015-03-04 | 安徽顺驰电缆有限公司 | Novel composite assembly line |
| CN105280273A (en) * | 2015-11-16 | 2016-01-27 | 安徽光复电缆有限公司 | Light composite aerospace cable |
| CN106448846A (en) * | 2016-12-12 | 2017-02-22 | 广州凯恒特种电线电缆有限公司 | Fluoropolymer wire and cable and preparation thereof |
| CN111883300A (en) * | 2020-07-20 | 2020-11-03 | 浙江海宁和金电子科技有限公司 | Bending-resistant and corrosion-resistant PVC power line and preparation and forming method thereof |
-
2014
- 2014-03-28 CN CN201420152053.0U patent/CN203895133U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392778A (en) * | 2014-11-21 | 2015-03-04 | 安徽顺驰电缆有限公司 | Novel composite assembly line |
| CN105280273A (en) * | 2015-11-16 | 2016-01-27 | 安徽光复电缆有限公司 | Light composite aerospace cable |
| CN106448846A (en) * | 2016-12-12 | 2017-02-22 | 广州凯恒特种电线电缆有限公司 | Fluoropolymer wire and cable and preparation thereof |
| CN111883300A (en) * | 2020-07-20 | 2020-11-03 | 浙江海宁和金电子科技有限公司 | Bending-resistant and corrosion-resistant PVC power line and preparation and forming method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20180328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |