CN108366517B - Wrapping type electromagnetic shielding film for optical cable - Google Patents

Wrapping type electromagnetic shielding film for optical cable Download PDF

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Publication number
CN108366517B
CN108366517B CN201810078716.1A CN201810078716A CN108366517B CN 108366517 B CN108366517 B CN 108366517B CN 201810078716 A CN201810078716 A CN 201810078716A CN 108366517 B CN108366517 B CN 108366517B
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China
Prior art keywords
electromagnetic shielding
shielding film
optical cable
conductive coating
conductive
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CN201810078716.1A
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Chinese (zh)
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CN108366517A (en
Inventor
汪娟
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Yangzhou Sparkle Industrial Co ltd
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Anhui Jianzhu University
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073Shielding materials
    • H05K9/0081Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439Auxiliary devices

Abstract

The invention relates to the technical field of optical cable sheaths, in particular to a wrapping type electromagnetic shielding film for an optical cable, which comprises a base body, conductive coatings coated on one side or two sides of the base body and a wear-resistant layer arranged on the conductive coatings; the conductive coating comprises metal particles, a conductive agent and ultraviolet curing resin glue for bearing the metal particles and the conductive agent; according to the invention, the conductive coating and the wear-resistant layer are coated on the surface of the substrate to form the flexible electromagnetic shielding film, and the flexible electromagnetic shielding film is wrapped at the optical cable junction, so that the electromagnetic shielding requirement at the optical cable junction is well met, and meanwhile, the electromagnetic shielding film is easy to remove, convenient to wrap and greatly convenient for the maintenance operation of the optical cable; according to the electromagnetic shielding film provided by the invention, the conductive coating is immersed in the matrix, the formed conductive coating has good adhesion performance and is not easy to fall off, and the wear-resistant layer is arranged on the outer side of the conductive coating, so that the protection effect is effectively provided.

Description

It is a kind of for optical cable around packet mode electromagnetic shielding film
Technical field
The present invention relates to cable jacket technical fields, and in particular to it is a kind of for optical cable around packet mode electromagnetic shielding film.
Background technique
Optical cable is very widely used in existing communication network.In radio art, many occasions require using Optical cable transmits signal, and still, optical cable can have an impact the signal transmitted, when by outside electromagnetic interference so must Electromagnetic shielding processing must be carried out to optical cable.
In the prior art, typically there is outside optical cable the plastic sheath of effectiveness to be protected, is moulded Material sheath is installed additional in cable runs construction, i.e., plastic protecting casing is first embedded in underground, then again inside protecting pipe Cable of giving out light is worn, and at connection jaws, due to wiring and the needs of associated maintenance, electromagnetic shielding sheath at this time often needs to be opened Come to maintain easily, therefore the plastic sheath that pre-production is completed necessarily is not suitable for, in addition, the outside cladding imprecision of optical cable is then It will lead to electromagnetic interference, influence the stability of optical cable transmission signal.
Summary of the invention
For the problems of the prior art, the purpose of the present invention is to provide a kind of being electromagnetically shielded around packet mode for optical cable Film, it is ensured that while effectiveness of the optical cable at connection jaws, facilitate the maintenance at optical cable connection jaws.
To achieve the goals above, the present invention is achieved by the following scheme:
It is a kind of for optical cable around packet mode electromagnetic shielding film, the electromagnetic shielding film includes matrix, be coated in matrix one The conductive coating of side or two sides, and the wearing layer being arranged on conductive coating;
The conductive coating includes the ultra-violet curing of metallic, conductive agent, the carrying metallic and conductive agent Resin glue.
In the present invention, by forming conductive coating in the one or both sides of matrix, then it is arranged on conductive coating wear-resisting Layer protects it, wrapped to optical cable progress by the electromagnetic shielding film, effectively avoids extraneous electromagnetic radiation to light The influence of cable signal transmission, meanwhile, which is wound around outside optical cable by the way of wrapped, is solved in optical cable Inconvenient problem when connecting part is safeguarded.
According to the present invention, carrier of the matrix as conductive coating, can selected from glass fabric, carbon cloth, One of basalt fiber cloth, above-mentioned carrier are big to the impregnation increment of conductive coating, and conductive coating can penetrate into intrinsic silicon, mention The adhesion effect of high conductive coating, meanwhile, conductive coating also avoids the peeling phenomenon occurred during bending after penetrating into.
According to the present invention, metallic of the present invention include gold, silver, copper, nickel, aluminium, or combinations thereof.
According to the present invention, conductive agent of the present invention is carbon black or carbon nanotube.
In the present invention, metallic and conductive agent are filled in ultraviolet-curing resin glue, and the optical cable being wrapped by is come It says and forms closed conductive shell, it is ensured that the influence of electromagnetic radiation will not be generated on the outside of electromagnetic shielding film between optical cable. The content of the metallic and conductive agent in ultraviolet-curing resin glue can reach shield effectiveness with the conductive coating Meanwhile it is easy to form be advisable, the conductive coating includes the substance of following parts by weight: 3.2~9.5 parts by weight of metallic, 5.5~10.3 parts by weight of conductive agent, 30~58 parts by weight of ultraviolet-curing resin glue, 3~8 parts by weight of ultra-violet curing agent, solvent 72~78 parts by weight.
Further, heretofore described conductive coating with a thickness of 10~100 μm.
According to the present invention, the effect of wearing layer is to protect conductive coating, and conductive coating is avoided to be destroyed, this Inventing the wearing layer includes ultraviolet-curing resin glue and ultra-violet curing agent.
The ultraviolet-curing resin glue be selected from polyurethanes, epoxy resin, esters of acrylic acid, organic silicon or One of polyester resinoid is a variety of;The ultra-violet curing agent is epoxy curing agent.
Preferably, the wearing layer includes the substance of following parts by weight: 40~55 weight of ultraviolet-curing resin glue Measure part, 5~12 parts by weight of ultra-violet curing agent, 68~75 parts by weight of solvent.
In order to which preferable wrapped effect is realized on the hash beam surface formed in optical cable, the wearing layer upper surface is set It is equipped with the microprism item extended along the electromagnetic shielding film width direction, the cross section of the microprism item is triangle, described The height of microprism item is 30~50 μm, and the angle of apex angle is 90 °, by the setting of the microprism item, increases electromagnetic shielding The bending ability of film, more conducively electromagnetic shielding film is wrapped, meanwhile, so that around the electromagnetic shielding film and optical cable of cable surface Between frictional force increase so that wrapped is more compact;The microprism item is obtained using special engraved roll extrusion forming It arrives.
In the present invention, by the masking liquid of conductive coating it is deployed after be uniformly coated on matrix, use high-pressure sodium lamp with 400mj/cm2Gross energy it is irradiated, make its UV solidify, apply coating rubbing-layer, then on it again then with 450mj/cm2 High voltage mercury lamp radiation, make its curing molding, finally obtain the electromagnetic shielding film.
The present invention has following technical effect that
The present invention forms the electromagnetic shielding film of soft type by coating conductive coating and wearing layer in matrix surface, by its around Packet is at optical cable connection jaws, the fabulous electromagnetic shielding demand solved in the connecting part of optical cable, meanwhile, the electromagnetic shielding film is easy In dismounting, wrapped convenience greatly facilitates the upkeep operation of optical cable;
Electromagnetic shielding film provided by the invention, conductive coating immerse in matrix, and the conductive coating adhesion property of formation is good, no It is easy to fall off, wearing layer is set on the outside of conductive coating, effectively provides protective effect;
The present invention, as conductive coating and the moulding resin of wearing layer, is improved cured using ultraviolet-curing resin glue Efficiency.
Detailed description of the invention
Fig. 1,2 are the structural schematic diagram around packet mode electromagnetic shielding film provided by the present invention for optical cable;
Fig. 3 is the structural schematic diagram for being provided with the electromagnetic shielding film of micro-prism structure;
Figure label explanation: 1- matrix, 2- conductive coating, 3- wearing layer.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below Conjunction is specifically illustrating and embodiment, and the present invention is furture elucidated.
It is as shown in connection with fig. 1 a kind of structural schematic diagram around packet mode electromagnetic shielding film for optical cable provided by the invention, The electromagnetic shielding film includes matrix 1, the conductive coating 2 coated in 1 side of matrix, and is arranged in resistance on conductive coating 2 Grind layer 3;
It is illustrated in figure 2 another structural schematic diagram around packet mode electromagnetic shielding film for being used for optical cable provided by the invention, The electromagnetic shielding film includes matrix 1, the conductive coating 2 coated in 1 two sides of matrix, and is arranged in resistance on conductive coating 2 Grind layer 3.
The conductive coating 2 includes the ultra-violet curing of metallic, conductive agent, the carrying metallic and conductive agent Resin glue.
It is illustrated in figure 3 another structural schematic diagram around packet mode electromagnetic shielding film for being used for optical cable provided by the invention, The electromagnetic shielding film includes matrix 1, the conductive coating 2 coated in 1 two sides of matrix, and is arranged in resistance on conductive coating 2 Layer 3 is ground, the wearing layer 3 is equipped with the microprism item extended along the electromagnetic shielding film width direction, the microprism item Cross section be triangle.
It is carried out around packet mode electromagnetic shielding film into one below by way of specific embodiment to provided by the present invention for optical cable The explanation of step.
Embodiment 1
It is a kind of for optical cable around packet mode electromagnetic shielding film, the electromagnetic shielding film includes matrix, be coated in matrix one The conductive coating of side or two sides, and the wearing layer being arranged on conductive coating;The matrix is that glass fabric (is purchased from Zi Gong The CWR90-30 of Samsung glass Co., Ltd, city production);
The conductive coating includes the substance of following parts by weight:
Copper powder (purchased from the electrolytic copper powder of Nangong City prosperous shield alloy wlding spraying Co., Ltd production, mesh number is 300 mesh) 6.5 Parts by weight
Carbon black is (purchased from the conductive black that Xinxiang City and Lve Lida power material Co., Ltd produce, trade mark Hiblack- 4010) 8.2 parts by weight
Esters of acrylic acid glue (HY-3408 of Dongguan Hua Yi new material Co., Ltd production, solid content 50%) 45 weight Part
M-XDA curing agent (N3390 of Bayer A.G's production) 5 parts by weight
75 parts by weight of acetone;
The conductive coating with a thickness of 50 μm;
The wearing layer includes the substance of following parts by weight:
Esters of acrylic acid glue (HY-3408 of Dongguan Hua Yi new material Co., Ltd production, solid content 50%) 48 weight Part
M-XDA curing agent (N3390 of Bayer A.G's production) 8 parts by weight
72 parts by weight of acetone.
Embodiment 2
It is a kind of for optical cable around packet mode electromagnetic shielding film, the electromagnetic shielding film includes matrix, be coated in matrix one The conductive coating of side or two sides, and the wearing layer being arranged on conductive coating;The matrix is that glass fabric (is purchased from Zi Gong The CWR90-30 of Samsung glass Co., Ltd, city production);
The conductive coating includes the substance of following parts by weight:
Copper powder (purchased from the electrolytic copper powder of Nangong City prosperous shield alloy wlding spraying Co., Ltd production, mesh number is 300 mesh) 3.2 Parts by weight
Carbon black is (purchased from the conductive black that Xinxiang City and Lve Lida power material Co., Ltd produce, trade mark Hiblack- 4010) 5.5 parts by weight
Esters of acrylic acid glue (HY-3408 of Dongguan Hua Yi new material Co., Ltd production, solid content 50%) 30 weight Part
M-XDA curing agent (N3390 of Bayer A.G's production) 3 parts by weight
72 parts by weight of acetone;
The conductive coating with a thickness of 10 μm;
The wearing layer includes the substance of following parts by weight:
Esters of acrylic acid glue (HY-3408 of Dongguan Hua Yi new material Co., Ltd production, solid content 50%) 40 weight Part
M-XDA curing agent (N3390 of Bayer A.G's production) 5 parts by weight
68 parts by weight of acetone.
Embodiment 3
It is a kind of for optical cable around packet mode electromagnetic shielding film, the electromagnetic shielding film includes matrix, be coated in matrix one The conductive coating of side or two sides, and the wearing layer being arranged on conductive coating;The matrix is that glass fabric (is purchased from Zi Gong The CWR90-30 of Samsung glass Co., Ltd, city production);
The conductive coating includes the substance of following parts by weight:
Copper powder (purchased from the electrolytic copper powder of Nangong City prosperous shield alloy wlding spraying Co., Ltd production, mesh number is 300 mesh) 9.5 Parts by weight
Carbon black is (purchased from the conductive black that Xinxiang City and Lve Lida power material Co., Ltd produce, trade mark Hiblack- 4010) 10.3 parts by weight
Esters of acrylic acid glue (HY-3408 of Dongguan Hua Yi new material Co., Ltd production, solid content 50%) 58 weight Part
M-XDA curing agent (N3390 of Bayer A.G's production) 8 parts by weight
78 parts by weight of acetone;
The conductive coating with a thickness of 100 μm;
The wearing layer includes the substance of following parts by weight:
Esters of acrylic acid glue (HY-3408 of Dongguan Hua Yi new material Co., Ltd production, solid content 50%) 55 weight Part
M-XDA curing agent (N3390 of Bayer A.G's production) 12 parts by weight
75 parts by weight of acetone.
Embodiment 4
It is a kind of for optical cable around packet mode electromagnetic shielding film, the electromagnetic shielding film includes matrix, be coated in matrix one The conductive coating of side or two sides, and the wearing layer being arranged on conductive coating;The matrix is that glass fabric (is purchased from Zi Gong The CWR90-30 of Samsung glass Co., Ltd, city production);
The conductive coating includes the substance of following parts by weight:
Copper powder (purchased from the electrolytic copper powder of Nangong City prosperous shield alloy wlding spraying Co., Ltd production, mesh number is 300 mesh) 6.5 Parts by weight
Carbon black is (purchased from the conductive black that Xinxiang City and Lve Lida power material Co., Ltd produce, trade mark Hiblack- 4010) 8.2 parts by weight
Esters of acrylic acid glue (HY-3408 of Dongguan Hua Yi new material Co., Ltd production, solid content 50%) 45 weight Part
M-XDA curing agent (N3390 of Bayer A.G's production) 5 parts by weight
75 parts by weight of acetone;
The conductive coating with a thickness of 50 μm;
The wearing layer includes the substance of following parts by weight:
Esters of acrylic acid glue (HY-3408 of Dongguan Hua Yi new material Co., Ltd production, solid content 50%) 48 weight Part
M-XDA curing agent (N3390 of Bayer A.G's production) 8 parts by weight
72 parts by weight of acetone;
Microprism item is formed in wear-resisting layer surface by forming roller, the height of the microprism item is 50 μm, the angle of apex angle It is 90 °.
Electromagnetic shielding film provided by the invention can easily improve the closing carried out at the connection jaws of optical cable around packet mode The reliability of optical cable transmission signal.
Basic principles and main features and the features of the present invention of the invention have been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes Change and improvement is both fallen in the range of claimed invention.The scope of protection of present invention is by appended claims And its equivalent thereof.

Claims (4)

1. it is a kind of for optical cable around packet mode electromagnetic shielding film, it is characterised in that: the electromagnetic shielding film includes matrix, coating Conductive coating in matrix one or both sides, and the wearing layer being arranged on conductive coating;
The conductive coating includes the ultraviolet-curing resin of metallic, conductive agent, the carrying metallic and conductive agent Glue;
The matrix is selected from one of glass fabric, carbon cloth, basalt fiber cloth;
The wearing layer includes ultraviolet-curing resin glue and ultra-violet curing agent, and the ultraviolet-curing resin glue is selected from poly- ammonia One of esters, epoxy resin, esters of acrylic acid, organic silicon or polyester resinoid are a variety of;
The ultra-violet curing agent is epoxy curing agent.
2. it is according to claim 1 for optical cable around packet mode electromagnetic shielding film, it is characterised in that: the clipped wire attached bag Include gold, silver, copper, nickel, aluminium, or combinations thereof.
3. it is according to claim 1 for optical cable around packet mode electromagnetic shielding film, it is characterised in that: the conductive agent is Carbon black or carbon nanotube.
4. it is according to claim 1 for optical cable around packet mode electromagnetic shielding film, it is characterised in that: the conductive coating With a thickness of 10~100 μm.
CN201810078716.1A 2018-01-26 2018-01-26 Wrapping type electromagnetic shielding film for optical cable Active CN108366517B (en)

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Application Number Priority Date Filing Date Title
CN201810078716.1A CN108366517B (en) 2018-01-26 2018-01-26 Wrapping type electromagnetic shielding film for optical cable

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Application Number Priority Date Filing Date Title
CN201810078716.1A CN108366517B (en) 2018-01-26 2018-01-26 Wrapping type electromagnetic shielding film for optical cable

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CN108366517B true CN108366517B (en) 2019-10-15

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109585142B (en) * 2018-10-29 2020-05-19 南瑞集团有限公司 Shielding suitable for epoxy resin cast winding and manufacturing method thereof

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US6982378B2 (en) * 2003-03-07 2006-01-03 Hewlett-Packard Development Company, L.P. Lossy coating for reducing electromagnetic emissions
CN101065008A (en) * 2006-04-28 2007-10-31 日东电工株式会社 Adhesive tape having a characteristic of conducting or absorbing electromagnetic waves
CN103120043A (en) * 2010-10-27 2013-05-22 莱尔德技术股份有限公司 EMI shielding heat shrinkable tapes
CN106952678A (en) * 2017-04-28 2017-07-14 南昌联能科技有限公司 A kind of electromagnetic shielding film for cable
CN206401057U (en) * 2017-01-25 2017-08-11 中国科学院长春应用化学研究所 A kind of cable protective sleeve
CN107464602A (en) * 2017-09-16 2017-12-12 深圳市华琥技术有限公司 A kind of film body for shielding electromagnetism

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Publication number Priority date Publication date Assignee Title
JPS6287915A (en) * 1985-10-14 1987-04-22 Kiyoshi Hajikano Optical fiber
US20080060832A1 (en) * 2006-08-28 2008-03-13 Ali Razavi Multi-layer cable design and method of manufacture
CN204858503U (en) * 2015-08-27 2015-12-09 重庆燕牌电线电缆有限公司 10 -35kV cable joint structure
CN205046403U (en) * 2015-09-30 2016-02-24 吴江市雪尔美纺织有限公司 Ultra -thin electrically conductive cloth shielding surface fabric

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6982378B2 (en) * 2003-03-07 2006-01-03 Hewlett-Packard Development Company, L.P. Lossy coating for reducing electromagnetic emissions
CN101065008A (en) * 2006-04-28 2007-10-31 日东电工株式会社 Adhesive tape having a characteristic of conducting or absorbing electromagnetic waves
CN103120043A (en) * 2010-10-27 2013-05-22 莱尔德技术股份有限公司 EMI shielding heat shrinkable tapes
CN206401057U (en) * 2017-01-25 2017-08-11 中国科学院长春应用化学研究所 A kind of cable protective sleeve
CN106952678A (en) * 2017-04-28 2017-07-14 南昌联能科技有限公司 A kind of electromagnetic shielding film for cable
CN107464602A (en) * 2017-09-16 2017-12-12 深圳市华琥技术有限公司 A kind of film body for shielding electromagnetism

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Effective date of registration: 20220516

Address after: 225200 Zhanggang Industrial Park, Jiangdu Economic Development Zone, Yangzhou City, Jiangsu Province

Patentee after: YANGZHOU SPARKLE INDUSTRIAL Co.,Ltd.

Address before: 230000 no.292 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province

Patentee before: ANHUI JIANZHU University