KR101728110B1 - Flexible and thin film for shielding from electric wave and fabrication method for the same - Google Patents
Flexible and thin film for shielding from electric wave and fabrication method for the same Download PDFInfo
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- KR101728110B1 KR101728110B1 KR1020150136020A KR20150136020A KR101728110B1 KR 101728110 B1 KR101728110 B1 KR 101728110B1 KR 1020150136020 A KR1020150136020 A KR 1020150136020A KR 20150136020 A KR20150136020 A KR 20150136020A KR 101728110 B1 KR101728110 B1 KR 101728110B1
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- KR
- South Korea
- Prior art keywords
- carbon fiber
- insulating film
- electromagnetic wave
- wave shielding
- fiber yarns
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/009—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive fibres, e.g. metal fibres, carbon fibres, metallised textile fibres, electro-conductive mesh, woven, non-woven mat, fleece, cross-linked
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/0088—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a plurality of shielding layers; combining different shielding material structure
Abstract
A flexible thin film tape for electromagnetic wave shielding and a method of manufacturing the same are provided. The method for manufacturing a flexible thin film tape for electromagnetic wave shielding according to the present embodiment includes the steps of supplying an insulating film in a longitudinal direction to a thermal welding apparatus, attaching a carbon fiber strand to a plurality of carbon fiber yarns coated with an electromagnetic wave shielding material, A step of spreading a plurality of ammunition fiber yarns coated with an electromagnetic wave shielding material spread in the width direction of the insulating film to a thermal fusing device in the longitudinal direction, And thermally fusing a plurality of carbon fiber yarns coated with an insulating film and an electromagnetic wave shielding material.
Description
TECHNICAL FIELD The present invention relates to a flexible thin film tape for shielding electromagnetic waves and a method of manufacturing the same. More particularly, the present invention relates to a thin film tape for electromagnetic wave shielding comprising a metal-coated carbon fiber yarn and a method of manufacturing the same.
Recently, with the rapid development of the electronic industry, a variety of electronic components such as automobiles, airplanes, and ships, which have been controlled in the past as mechanical devices, are being installed not only in various electronic products used in daily life.
As the electronic parts become the main parts of the equipment used in the industrial field or the home, the electromagnetic interference (EMI) generated due to the electromagnetic wave generated in the electronic equipment causes various electronic equipment and machinery to fail Or malfunctions have been reported.
Here, electromagnetic interference (EMI) is a phenomenon in which high electromagnetic radiation energy affects other facilities or human bodies. When all the electric / electronic devices using the power supply are operated, the electromagnetic waves generated according to the amount of current change per unit time are radiated Or conduction to impair the performance of other equipment.
As a method for preventing such electromagnetic interference, grounding, filtering, wiring and shielding methods are known. Shielding is to seal the source with a metal or a conductive object in order to minimize the electromagnetic noise emitted.
A shielding layer for electromagnetic wave shielding of a cable surrounds an insulating layer surrounding one or more cores made of a conductive material of an electromagnetic wave shielding cable and is generally made of metal.
Therefore, the conventional electromagnetic wave shielding cable has a problem in that the shielding layer made of metal is corroded because the weight of the electromagnetic shielding cable is increased by the shielding layer made of metal and the flexibility is low.
Therefore, the conventional electromagnetic wave shielding cable has a problem of hindering the weight saving of the transportation means such as an automobile, a ship and an airplane.
Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a flexible thin film tape for electromagnetic wave shielding and a method of manufacturing the same.
According to an aspect of the present invention, there is provided a method of manufacturing a flexible thin film tape for shielding electromagnetic waves, comprising the steps of: supplying an insulating film in a longitudinal direction to a thermal welding apparatus; A step of spreading a plurality of carbon fiber yarns coated with an electromagnetic wave shielding material spread in the width direction of the insulating film to a thermal fusing device in the longitudinal direction so as to contact the carbon fiber yarns in a width direction of the insulating film, And thermally fusing a plurality of carbon fiber yarns coated with an insulating film and an electromagnetic wave shielding material in a fused portion.
The step of unfolding the carbon fiber strands may include the steps of passing a carbon fiber strand through a second guide roller portion of a pneumatic spreading device installed at a first guide roller portion of the pneumatic spreading device so as to be spaced apart from the first guide roller portion, A step of pressing the carbon fiber strands with a pressing portion of a pneumatic spreading device provided between the first guide roller portion and the second guide roller portion and a step of pressing the carbon fiber strands with the carbon fiber impregnated with the pressing portion by the first suction portion of the pneumatic spreading device provided below the pressing portion And sucking air in the lower portion of one side of the tongue.
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The step of unfolding the carbon fiber strands may include the steps of passing carbon fiber strands through a pressure roller portion of a heating type spreading device provided at a second supply portion of the heating type spreading device so as to be spaced apart from the second supply portion, A step of heating a carbon fiber strand with a heating unit of a heating type spreading apparatus provided in the heating type spreading apparatus, a second suction unit of a heating type spreading apparatus provided between the heating unit and the pressure roller unit, And sucking in air.
The step of thermally fusing a plurality of carbon fiber yarns coated with the insulating film and the electromagnetic wave shielding material may include a step of heating the insulating film and a plurality of carbon fiber yarns with an infrared heating device of the heat fusion portion, And passing a plurality of carbon fiber yarns coated with an insulating film and an electromagnetic wave shielding material between a pair of heat compression rollers of the fused portion.
Supplying an insulating film to a thermal welding apparatus, supplying a first thermal insulating film to the thermal welding apparatus so as to cover one surface of the insulating film, and supplying a plurality of carbon fiber yarns coated with an electromagnetic shielding material to the thermal welding apparatus And then supplying the second heat interlinings to the heat seal apparatus so as to cover the plurality of carbon fiber yarns arranged on the other surface located on the opposite side of one side of the insulating film.
The method may further include, after supplying the first heat insulating layer to the heat sealing apparatus, removing the first heat insulating sheet from the insulating film when the first heat insulating sheet passes the heat sealing portion.
The method may further include a step of cooling the flexible thin film tape for shielding electromagnetic waves, which is formed by thermally fusing a plurality of carbon fiber yarns coated with an insulating film and an electromagnetic wave shielding material, with a cooling section.
The sum of the thickness of the fused insulating film and the thickness of the plurality of carbon fiber yarns can be adjusted between 0.1 mm and 0.5 mm.
The flexible thin film tape for electromagnetic wave shielding according to an embodiment of the present invention may be formed by contacting adjacent carbon fiber yarns among a plurality of carbon fiber yarns coated with an electromagnetic wave shielding material, And an electromagnetic wave shielding thin film disposed on one side of the insulating film, the electromagnetic wave shielding thin film including a plurality of carbon fiber yarns coated with the electromagnetic wave shielding material, The carbon fiber yarns are arranged along the longitudinal direction in the width direction of the insulating film.
In addition, the material of the insulating film is selected from the group consisting of polyvinyl chloride, polyvinyl chloride, crosslinked, polyethylene, polyamide, polytetrafluoroethylene, fluorinated ethylene propylene Fluorinated ethylene propylene, ethylene tetrafluoroethylene, polypropylene, polyvinylidene fluoride, perfluoroalkoxy copolymer, thermoplastic polyurethane, polyvinylidene fluoride, A thermoplastic polyether ester elastomer, a thermoplastic polyether elastomer, a thermoplastic polystyrene block copolymer, a thermoplastic polyether ester elastomer, a thermoplastic polyether ester elastomer, a thermoplastic polystyrene block copolymer, a thermoplastic polyether ester elastomer,Restorative Murray (Thermoplastic polyamide elastomer) one polyamide, may comprise one of silicon rubber (Silicone rubber).
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The electromagnetic wave shielding material may include Ni, Cu, Ag, Al, and Mg.
The sum of the thicknesses of the insulating film and the electromagnetic wave shielding thin film may be 0.1 mm or more and 0.5 mm or less.
Other specific details of the invention are included in the detailed description and drawings.
According to one aspect of the present invention, there is provided a flexible thin film tape for electromagnetic wave shielding which is thin and light and a method of manufacturing the same.
According to an aspect of the present invention, there is provided a flexible thin film tape for electromagnetic wave shielding having excellent flexibility in a width direction and a length direction, and a manufacturing method thereof.
According to an aspect of the present invention, there is provided a method of manufacturing a flexible thin film tape for shielding electromagnetic waves capable of adjusting a width and a thickness.
1 is a schematic view of a thermal welding apparatus used for manufacturing a flexible thin film tape for shielding electromagnetic waves according to an embodiment of the present invention.
2 is a flowchart illustrating a method of manufacturing a flexible thin film tape for shielding electromagnetic waves according to an embodiment of the present invention.
3 is a flowchart illustrating a method of thermally fusing a plurality of carbon fiber yarns coated with an insulating film and an electromagnetic wave shielding material according to an embodiment of the present invention.
4 is a schematic view of a pneumatic spreading device used in a method for expanding carbon fiber strands according to an embodiment of the present invention.
5 is a flowchart showing a method of spreading carbon fiber strands using the pneumatic spreading apparatus of FIG.
6 is a schematic view of a heating type spreading apparatus used in a method for expanding carbon fiber strands according to an embodiment of the present invention.
7 is a flow chart showing a method of spreading carbon fiber strands using the heating type spreading apparatus of FIG.
8 is a plan view of a flexible thin film tape for shielding electromagnetic waves according to an embodiment of the present invention.
9 is a cross-sectional view taken along the line XI-XI in FIG.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.
Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
1 is a schematic view of a thermal welding apparatus used for manufacturing a flexible thin film tape for shielding electromagnetic waves according to an embodiment of the present invention.
The
The guide roller unit 10 includes a first guide roller 11, a
The guide roller unit 10 includes a
Therefore, according to the present embodiment, the
The thermally fused
Here, the infrared heating device 21 may include a first infrared heating device 21a and a second
In addition, the pair of
Specifically, the pair of first
According to the present embodiment, a pair of first
Hereinafter, a method of manufacturing a flexible thin film tape for shielding electromagnetic waves using the heat fusing device 11 according to the present embodiment will be described in detail.
FIG. 2 is a flow chart showing a method of manufacturing a flexible thin film tape for shielding electromagnetic waves according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of an insulation film according to an embodiment of the present invention and a plurality of carbon fibers Is heat-sealed.
2 and 3, a method S100 for manufacturing a flexible thin film tape for electromagnetic wave shielding according to the present embodiment includes the steps of supplying an
Specifically, the
Here, the material of the
The plurality of
The electromagnetic wave shielding material coated on the plurality of
The
More specifically, the
The method S100 for manufacturing a flexible thin film tape for shielding electromagnetic waves according to the present embodiment is a method for manufacturing a flexible thin film tape for electromagnetic wave shielding according to this embodiment in which an insulating
In addition, the method (S100) for manufacturing a flexible thin film tape for shielding electromagnetic waves according to the present embodiment is characterized in that a plurality of
The method S100 for manufacturing a flexible thin film tape for shielding electromagnetic waves according to the present embodiment further comprises the steps of supplying the first interleaving sheet P1 to the
If heat is excessively applied to the insulating
According to the present embodiment, the infrared ray heating device 21 and the pair of heaters (not shown) are attached to the first interleaving plate P1 and the second interleaving plate P2 provided to cover the insulating
As a result, according to this embodiment, the insulating
In addition, according to the present embodiment, the thickness t of the flexible
The method (S100) for manufacturing a flexible thin film tape for electromagnetic wave shielding according to the present embodiment further includes a step (S170) of cooling the electromagnetic wave shielding flexible
According to the present embodiment, the electromagnetic wave shielding flexible
The method for manufacturing a flexible thin film tape for electromagnetic wave shielding (S100) according to the present embodiment includes the steps of: forming a plurality of insulating
Here, according to this embodiment, since the plurality of
The thickness t of the electromagnetic wave shielding flexible
As a result, according to the method (S100) for manufacturing a flexible thin film tape for shielding electromagnetic waves according to the present embodiment, it is possible to provide a flexible
Further, according to this embodiment, since the plurality of
In addition, the excellent flexibility in the longitudinal direction of the flexible
Therefore, according to the method (S100) for manufacturing a flexible thin film tape for shielding electromagnetic waves according to this embodiment, the flexible
The step S130 of supplying a plurality of carbon fiber yarns to the
Hereinafter, a method of spreading a carbon fiber strand (OCF) composed of a plurality of
4 is a schematic view of a pneumatic spreading device used in a method for expanding carbon fiber strands according to an embodiment of the present invention.
4, the pneumatic spreading
Here, the second
The
The
The
5 is a flowchart showing a method of spreading carbon fiber strands using the pneumatic spreading apparatus of FIG.
5, a step S130A of unfolding the carbon fiber strand (OCF) according to the present embodiment includes passing the carbon fiber strand (OCF) from the first
Specifically, one surface of the carbon fiber strand (OCF) passed through the first
Thereafter, the carbon fiber strand (OCF) into which the air has permeated is passed between the twenty-
Here, each of the suction device of the first pressing portion and the suction device of the first suction portion according to the present embodiment is not limited to two, but may be one, or three or more.
Further, the width and thickness of the carbon fiber yarn (OCF) according to the present embodiment can be adjusted by the number of the suction devices of the first pressing portion and the first pressing portion.
That is, if the number of the pressing devices of the first pressing portion and the suction devices of the first suction portion is increased in the step of spreading the carbon fiber strand (OCF) (S130A), the width of the spreading of the
As a result, according to the present embodiment, the carbon fiber strand (OCF) can be spread with a plurality of
The plurality of
As described above, a plurality of
6 is a schematic view of a heating type spreading apparatus used in a method for expanding carbon fiber strands according to an embodiment of the present invention.
6, the spreading
The
Here, the pair of first
The
Specifically, the
The
Specifically, the
The
7 is a flow chart showing a method of spreading carbon fiber strands using the heating type spreading apparatus of FIG.
7, in step S130B, a carbon fiber strand is spread by using a heating type spreading device. The carbon fiber strand is wound on a carbon fiber strand (not shown) by a pressurizing
Specifically, after the carbon fiber strand (OCF) passed through the
Thereafter, the same process as the process of spreading the carbon fiber strand (OCF) by using the
Here, each of the heating apparatus of the heating unit and the suction unit of the second suction unit according to the present embodiment is not limited to five, and may be one to four or six or more.
The width and thickness of the carbon fiber yarn (OCF) according to the present embodiment can be adjusted by the number of the heating devices of the heating part and the number of suction devices of the second suction part.
That is, if the number of the heating units of the heating unit and the suction units of the second suction unit are increased in the step of extending the carbon fiber strand (OCF) (S130B), the width of the spreading of the
As a result, according to the present embodiment, the carbon fiber strand (OCF) can be spread with a plurality of
The plurality of
As described above, a plurality of
FIG. 8 is a plan view of a flexible thin film tape for shielding electromagnetic waves according to an embodiment of the present invention, and FIG. 9 is a sectional view cut along the line XI-XI in FIG.
Referring to FIGS. 8 and 9, the flexible
Here, the insulating
The electromagnetic
Here, the plurality of
In addition, the electromagnetic
The thickness t of the electromagnetic wave shielding flexible
As a result, according to the present embodiment, it is possible to provide a flexible
Further, according to the present embodiment, since the plurality of
However, the electromagnetic wave shielding
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And it goes without saying that the invention belongs to the scope of the invention.
100: Flexible thin film tape for electromagnetic wave shielding 10: Guide roller portion
20: thermal fusion portion 30: cooling portion
40: discharge roller portion 50: insulating film provided
60: Tinfoil preparation unit 70: Recovery unit
80: heat supply and recovery unit
90: Pneumatic spreading device
190: Heated spreading device
290: Flexible thin film tape for electromagnetic wave shielding
Claims (14)
Expanding the carbon fiber strands in the width direction of the insulating film so that adjacent ones of the plurality of carbon fiber yarns coated with the electromagnetic shielding material are in contact with each other;
Supplying a plurality of carbon fiber yarns coated with the electromagnetic wave shielding material spread in the width direction of the insulating film to the heat welding apparatus in the longitudinal direction; And
Thermally fusing a plurality of carbon fiber yarns coated with the insulating film and the electromagnetic wave shielding material in a thermal welding portion of the thermal welding apparatus; Wherein the electromagnetic wave shielding tape is made of a metal.
The step of unfolding the carbon fiber strands comprises:
Passing the carbon fiber strands through a first guide roller portion of a pneumatic spreading device to a second guide roller portion of the pneumatic spreading device spaced apart from the first guide roller portion;
Pressing the carbon fiber strands with a pressing portion of the pneumatic spreading device provided between the first guide roller portion and the second guide roller portion; And
Sucking air in a lower portion of one side of the carbon fiber strand pushed by the pressing portion into a first suction portion of the pneumatic spreading device provided below the pressing portion; Wherein the electromagnetic wave shielding tape is made of a metal.
The step of unfolding the carbon fiber strands comprises:
Passing the carbon fiber strands through a pressing roller portion of the heating type spreading device installed at a second feeding portion of the heating type spreading device so as to be spaced apart from the second feeding portion;
Heating the carbon fiber strands with a heating unit of the heating type spreading device provided between the second supply unit and the pressure roller unit;
Sucking air in a lower portion of one side of the carbon fiber strand heated by the heating unit to a second suction unit of the heating type spreading apparatus provided between the heating unit and the pressure roller unit; Wherein the electromagnetic wave shielding tape is made of a metal.
Wherein the step of thermally fusing the insulating film and the plurality of carbon fiber yarns coated with the electromagnetic wave shielding material comprises:
Heating the insulating film and the plurality of carbon fiber yarns with an infrared heating device of the heat fusion portion; And
Passing a plurality of carbon fiber yarns coated with the insulation film and the electromagnetic wave shielding material between a pair of heat compression rollers of the heat fusion unit installed apart from the infrared heating device; Wherein the electromagnetic wave shielding tape is made of a metal.
Supplying the first insulating interlayer to the heat sealing apparatus so as to cover one surface of the insulating film after supplying the insulating film to the heat sealing apparatus; And
A plurality of carbon fiber yarns coated with the electromagnetic wave shielding material are supplied to the thermal fusing device, and then the plurality of carbon fiber yarns coated on the other side of the insulating film are disposed on the other side of the insulating film, Supplying a second row interleaver; Further comprising the steps of: preparing a flexible thin film tape for electromagnetic wave shielding.
Further comprising the step of removing the first interlevel film from the insulating film when the first interlevel film passes the thermally fused portion after supplying the first interlevel film to the thermal fusing apparatus, Gt;
Further comprising the step of cooling the flexible thin film tape for electromagnetic wave shielding formed by thermally fusing a plurality of carbon fiber yarns coated with the insulating film and the electromagnetic wave shielding material with a cooling section.
Wherein the sum of the thickness of the heat-sealable insulating film and the thickness of the plurality of carbon fiber yarns is adjusted to be between 0.1 mm and 0.5 mm.
And a plurality of carbon fiber yarns positioned adjacent to one another among adjacent ones of the plurality of carbon fiber yarns coated with the electromagnetic wave shielding material to be thermally welded to the insulating film, Shielding film; / RTI >
Wherein a plurality of carbon fiber yarns in which carbon fiber yarns positioned adjacent to one another among the plurality of carbon fiber yarns coated with the electromagnetic wave shielding material are disposed are arranged in the width direction of the insulating film, .
The material of the insulating film is selected from the group consisting of polyvinyl chloride, polyvinyl chloride, crosslinked, polyethylene, polyamide, polytetrafluoroethylene, fluorinated ethylene propylene Fluorinated ethylene propylene, ethylenetetrafluoroethylene, polypropylene, polyvinylidene fluoride, perfluoroalkoxy copolymer, thermoplastic polyurethane, thermoplastic polyurethane, A thermoplastic polyether ester elastomer, a thermoplastic polyether elastomer, a thermoplastic polystyrene block copolymer, a thermoplastic polyether ester elastomer, a thermoplastic polyether ester elastomer, a thermoplastic polyether elastomer, a thermoplastic polystyrene block copolymer, De one Restorative Murray (Thermoplastic polyamide elastomer), flexible thin film tape for electromagnetic wave shielding which comprises one of a silicon rubber (Silicone rubber).
Wherein the electromagnetic wave shielding material comprises Ni, Cu, Ag, Al, and Mg.
Wherein the total thickness of the insulating film and the electromagnetic wave shielding thin film is 0.1 mm or more and 0.5 mm or less.
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| KR1020150136020A KR101728110B1 (en) | 2015-09-25 | 2015-09-25 | Flexible and thin film for shielding from electric wave and fabrication method for the same |
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| KR1020150136020A KR101728110B1 (en) | 2015-09-25 | 2015-09-25 | Flexible and thin film for shielding from electric wave and fabrication method for the same |
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| KR20170037005A KR20170037005A (en) | 2017-04-04 |
| KR101728110B1 true KR101728110B1 (en) | 2017-05-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101992168B1 (en) * | 2017-12-18 | 2019-06-24 | 김영근 | Device for shielding of electromagnetic wave and the method of manufacturing thereof |
| KR102002012B1 (en) * | 2018-01-17 | 2019-07-24 | 주식회사 에이치지솔루션 | Carbon fiber bunble for shielding electromagnetic wave and method for manufacturing the same |
| KR102491074B1 (en) * | 2021-03-11 | 2023-01-20 | (유)씨앤투영 | System for manufacturing thermoplastic carbon fiber fabric shielding material |
| CN113490331B (en) * | 2021-05-21 | 2022-12-09 | 福建中创新型材料科技有限责任公司 | High thermal conductivity's aluminium base board of flexible concatenation formula |
| CN115558304B (en) * | 2022-09-27 | 2024-02-09 | 合肥迈微新材料技术有限公司 | Preparation method of ultra-light composite electromagnetic shielding material based on carbon fiber solid waste modification and insulating coating |
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|---|---|---|---|---|
| JP2009187944A (en) * | 2008-02-01 | 2009-08-20 | Qinghua Univ | Method of manufacturing coaxial cable |
| JP2009535530A (en) * | 2006-05-02 | 2009-10-01 | ロール インコーポレイテッド | Modification of reinforcing fiber tows used in composites using nano-reinforcing materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2009245713A (en) | 2008-03-31 | 2009-10-22 | Sumitomo Electric Ind Ltd | Shield cable and method of manufacturing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009535530A (en) * | 2006-05-02 | 2009-10-01 | ロール インコーポレイテッド | Modification of reinforcing fiber tows used in composites using nano-reinforcing materials |
| JP2009187944A (en) * | 2008-02-01 | 2009-08-20 | Qinghua Univ | Method of manufacturing coaxial cable |
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