WO2017061597A1 - 接着剤層付き金属被覆不織布、接着剤層付き金属被覆不織布の製造方法、及び被覆芯線 - Google Patents
接着剤層付き金属被覆不織布、接着剤層付き金属被覆不織布の製造方法、及び被覆芯線 Download PDFInfo
- Publication number
- WO2017061597A1 WO2017061597A1 PCT/JP2016/079938 JP2016079938W WO2017061597A1 WO 2017061597 A1 WO2017061597 A1 WO 2017061597A1 JP 2016079938 W JP2016079938 W JP 2016079938W WO 2017061597 A1 WO2017061597 A1 WO 2017061597A1
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- WO
- WIPO (PCT)
- Prior art keywords
- metal
- nonwoven fabric
- adhesive layer
- coated nonwoven
- coated
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 207
- 239000002184 metal Substances 0.000 title claims abstract description 207
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 205
- 239000012790 adhesive layer Substances 0.000 title claims abstract description 115
- 238000000034 method Methods 0.000 title claims description 8
- 239000000835 fiber Substances 0.000 claims abstract description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 18
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 14
- 239000011231 conductive filler Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000004544 sputter deposition Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 230000009477 glass transition Effects 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
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- 239000000853 adhesive Substances 0.000 description 19
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- 230000000052 comparative effect Effects 0.000 description 6
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- 238000002791 soaking Methods 0.000 description 3
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- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
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- 229920000642 polymer Polymers 0.000 description 2
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- 239000000523 sample Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
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- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
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- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
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- 229920005989 resin Polymers 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
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- C—CHEMISTRY; METALLURGY
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
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- H01B7/00—Insulated conductors or cables characterised by their form
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- H01B7/0208—Cables with several layers of insulating material
- H01B7/0225—Three or more layers
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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
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- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
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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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
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-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/26—Presence of textile or fabric
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Definitions
- the present invention relates to a metal-coated nonwoven fabric with an adhesive layer comprising a metal-coated nonwoven fabric in which fibers are coated with metal, and a method for producing a metal-coated nonwoven fabric with an adhesive layer.
- the present invention also relates to a coated core wire using the above metal-coated nonwoven fabric with an adhesive layer.
- the surface may be coated for the purpose of electromagnetic shielding.
- a thin metal film is used for such coating.
- Patent Documents 1 and 2 disclose a plated nonwoven fabric obtained by performing metal plating on a nonwoven fabric.
- Patent Document 1 describes that a plated nonwoven fabric can be used by being wound around an electric wire bundle.
- Patent Document 2 describes that an adhesive may be laminated on the surface of the plated nonwoven fabric.
- An object of the present invention is to provide a metal-coated nonwoven fabric with an adhesive layer that can enhance the adhesiveness, and a method for producing a metal-coated nonwoven fabric with an adhesive layer. Moreover, this invention is providing the coated core wire using the said metal-coated nonwoven fabric with an adhesive bond layer.
- a metal-coated nonwoven fabric and an adhesive layer disposed on one surface side of the metal-coated nonwoven fabric the metal-coated nonwoven fabric comprises a nonwoven fabric and a surface of a fiber in the nonwoven fabric.
- the metal part has an average thickness of 2 ⁇ m or less
- the metal-coated nonwoven fabric has an average thickness of 25 ⁇ m or less
- an opening ratio in the metal-coated nonwoven fabric of 1% or more and 50%.
- the average thickness of the metal part is 1 ⁇ m or less.
- the material of the metal part includes nickel, copper, or silver.
- the average thickness of the metal-coated nonwoven fabric is preferably 20 ⁇ m or less.
- the opening ratio in the metal-coated nonwoven fabric is preferably 30% or less.
- the opening ratio in the metal-coated nonwoven fabric is preferably 3% or more.
- the glass transition temperature of the material of the nonwoven fabric is 150 ° C. or higher.
- the adhesive layer contains a conductive filler. It is preferable that the content of the conductive filler in the adhesive layer is 0.1 wt% or more and 80 wt% or less.
- the above-described method for producing a metal-coated nonwoven fabric with an adhesive layer compresses the nonwoven fabric before compression and has an average thickness of 4/5 or less of the average thickness of the nonwoven fabric before compression.
- a step of obtaining a non-woven fabric, a step of coating the surface of fibers in the non-woven fabric with a metal part, obtaining a metal-coated non-woven fabric, an adhesive layer disposed on one surface side of the metal-coated non-woven fabric, and an adhesive layer A method for producing a metal-coated nonwoven fabric with an adhesive layer is provided.
- the uncompressed nonwoven fabric is compressed by calendaring.
- the surface of fibers in the nonwoven fabric is coated with a metal part by sputtering.
- a coated core wire comprising a core wire and a covering portion covering the surface of the core wire, wherein the covering portion is the above-described metal-coated nonwoven fabric with an adhesive layer.
- the metal-coated nonwoven fabric with an adhesive layer includes a metal-coated nonwoven fabric and an adhesive layer disposed on one surface side of the metal-coated nonwoven fabric, and the metal-coated nonwoven fabric includes a nonwoven fabric and the nonwoven fabric.
- a metal portion covering the surface of the fiber, the average thickness of the metal portion is 2 ⁇ m or less, the average thickness of the metal-coated nonwoven fabric is 25 ⁇ m or less, and the opening ratio in the metal-coated nonwoven fabric is 1%. As mentioned above, since it is 50% or less, adhesiveness can be improved.
- FIG. 1 is a cross-sectional view showing a metal-coated nonwoven fabric with an adhesive layer according to the first embodiment of the present invention.
- FIG. 2 is a cross-sectional view showing a metal-coated nonwoven fabric with an adhesive layer according to a second embodiment of the present invention.
- FIG. 3 is a perspective view showing the coated core wire according to the first embodiment of the present invention.
- FIG. 1 is a cross-sectional view showing a metal-coated nonwoven fabric with an adhesive layer according to the first embodiment of the present invention.
- 1 includes a metal-coated nonwoven fabric 11 and an adhesive layer 12 disposed on one surface side of the metal-coated nonwoven fabric 11.
- the metal-coated nonwoven fabric with an adhesive layer is a metal-coated nonwoven fabric and an adhesive disposed on one surface (first surface) side of the metal-coated nonwoven fabric. And an agent layer (first adhesive layer).
- the fibers are coated with metal parts on both sides of the nonwoven fabric.
- FIG. 2 is a cross-sectional view showing a metal-coated nonwoven fabric with an adhesive layer according to a second embodiment of the present invention.
- a metal-coated nonwoven fabric 1A with an adhesive layer shown in FIG. 2 includes a metal-coated nonwoven fabric 11 and an adhesive layer 12 (first adhesive layer) disposed on one surface (first surface) side of the metal-coated nonwoven fabric 11. ) And an adhesive layer 13 (second adhesive layer) disposed on the other surface (second surface) side opposite to the one surface of the metal-coated nonwoven fabric 11.
- the metal-coated non-woven fabric has a non-woven fabric and a metal part covering the surface of the fiber in the non-woven fabric.
- the average thickness of the metal part is 2 ⁇ m or less.
- the average thickness of the metal-coated nonwoven fabric is 25 ⁇ m or less.
- the opening ratio of the metal-coated nonwoven fabric is 1% or more and 50% or less.
- the average thickness of the metal part is thin. For this reason, the clearance gap between the said metal parts is large, and the opening part of the said metal-coated nonwoven fabric is comparatively large. Therefore, at the time of adhesion, the adhesive layer can be soaked into the opening of the metal-coated nonwoven fabric.
- the adhesive component can be directly infiltrated into the space between the surfaces of the adjacent metal parts in the metal-coated nonwoven fabric. As a result, after bonding, the adhesive layer and the metal-coated nonwoven fabric can be firmly integrated, and peeling due to repulsion can be suppressed. Therefore, in this invention, adhesiveness can be improved by having said structure.
- the gap between the metal parts is a space between the surfaces of adjacent metal parts.
- the opening part of the said metal nonwoven fabric is an area
- the opening of the metal nonwoven fabric is an internal space in the metal-coated nonwoven fabric.
- the resistance can be lowered and the electromagnetic shielding performance can be improved.
- the average thickness of the metal part is 2 ⁇ m or less. From the viewpoint of appropriately infiltrating the adhesive layer, the average thickness of the metal part is preferably 1 ⁇ m or less, more preferably 700 nm or less. From the viewpoint of ensuring good electrical conductivity, the average thickness of the metal part is preferably 50 nm or more.
- the average thickness of the metal part can be calculated from, for example, the result of measuring the weight with fluorescent X-rays and drawing a calibration curve of strength-weight, density, and the like.
- the average thickness of the metal-coated nonwoven fabric is 25 ⁇ m or less. From the viewpoint of further improving the adhesiveness, the average thickness of the metal-coated nonwoven fabric is preferably 20 ⁇ m or less, more preferably 15 ⁇ m or less. From the viewpoint of effectively improving the protection performance and the electromagnetic wave shielding performance, the average thickness of the metal-coated nonwoven fabric is preferably 5 ⁇ m or more, more preferably 10 ⁇ m or more.
- the average thickness of the adhesive layer is preferably 1 ⁇ m or more, more preferably 5 ⁇ m or more, preferably 25 ⁇ m or less, more preferably 15 ⁇ m or less.
- the average thickness of the adhesive layer is 5 ⁇ m or more, peeling due to repulsion can be effectively suppressed.
- the average thickness of the metal-coated nonwoven fabric and the adhesive layer can be determined by observing a cross section in the thickness direction of the metal-coated nonwoven fabric with an adhesive layer with a microscope and averaging the thickness.
- nonwoven fabric material examples include polyethylene terephthalate (PET), polyarylate (PAR), and polysulfone (PSU).
- PET polyethylene terephthalate
- PAR polyarylate
- PSU polysulfone
- a covering portion wound around an electric wire or the like may be exposed to a high temperature.
- the nonwoven fabric is preferably excellent in heat resistance. Accordingly, the glass transition temperature of the nonwoven fabric material is preferably 100 ° C. or higher, more preferably 150 ° C. or higher, and still more preferably 175 ° C. or higher.
- Examples of the material for the metal part include nickel, copper, silver, platinum, tin, aluminum, and gold. From the viewpoint of effectively improving the electromagnetic shielding performance, the material of the metal part preferably contains nickel, copper or silver. As for these metals, only 1 type may be used and 2 or more types may be used together.
- Examples of the material for the adhesive layer include an acrylic adhesive, a urethane adhesive, a silicone adhesive, and a rubber-based adhesive.
- the adhesive preferably contains a conductive filler, and more preferably contains metal particles.
- the material of the conductive filler include conductive metal materials such as aluminum, copper, nickel, silver, and gold.
- the conductive filler may be a conductive filler having base particles and a conductive portion arranged on the surface of the base particles.
- the substrate particles include resin particles, organic-inorganic hybrid particles, metal particles, and inorganic particles excluding metal particles.
- the shape of the conductive filler is not particularly limited, and may be spherical or not spherical.
- the content of the conductive filler in the adhesive is preferably 0.1% by weight or more, more preferably 1% by weight or more, preferably 80% by weight or less, more preferably 60% by weight or less, and still more preferably 40% by weight. % Or less.
- the content of the conductive filler is equal to or higher than the lower limit, an increase in resistance value is suppressed.
- the content of the conductive filler is not more than the above upper limit, the adhesiveness is further increased, and peeling due to repulsion is further suppressed.
- the opening ratio in the metal-coated nonwoven fabric is 1% or more and 50% or less.
- the aperture ratio is a ratio of the area of the mesh portion of the fiber covered with the metal portion per certain area of the metal-coated nonwoven fabric.
- the aperture ratio can be calculated by microscopic observation or the like.
- the opening ratio in the metal-coated nonwoven fabric is preferably 2% or more, more preferably 3% or more.
- the opening ratio in the metal-coated nonwoven fabric is preferably 40% or less, more preferably 30% or less.
- the basis weight in the metal-coated nonwoven fabric is preferably 1 g / m 2 or more and 30 g / m 2 or less.
- the basis weight is a weight per unit area of the metal-coated nonwoven fabric, and is a result of measuring a weight per 1 m 2 .
- the basis weight of the metal-coated nonwoven fabric is preferably 3 g / m 2 or more, more preferably 5 g / m 2 or more.
- the basis weight of the metal-coated nonwoven fabric is preferably 30 g / m 2 or less, more preferably 25 g / m 2 or less.
- the metal-coated nonwoven fabric with an adhesive layer may have a second adhesive layer on the side opposite to the first surface.
- the metal-coated nonwoven fabric with an adhesive layer may have adhesive performance on both sides.
- the metal-coated non-woven fabric is bonded to the object to be bonded by adhering the metal-coated non-woven fabric with the adhesive layer from the adhesive layer side and pressing the adhesive layer. Can be soaked inside. As a result, strong adhesive performance is exhibited.
- the above-mentioned metal-coated nonwoven fabric with an adhesive layer is suitably used for coating the surface of the core wire.
- the metal-coated nonwoven fabric with an adhesive layer is more preferably used for coating the surface of the electric wire.
- the metal-coated nonwoven fabric with an adhesive layer is preferably used for coating a curved surface.
- the manufacturing method of the metal-coated nonwoven fabric with an adhesive layer includes a first step of compressing the nonwoven fabric before compression to obtain a nonwoven fabric having an average thickness of 4/5 or less of the average thickness of the nonwoven fabric before compression, A second step of coating the surface of the fiber in the non-woven fabric with a metal part to obtain a metal-coated non-woven fabric; and a metal coating with an adhesive layer by arranging an adhesive layer on one surface side of the metal-coated non-woven fabric A third step of obtaining a nonwoven fabric.
- the non-compressed nonwoven fabric is a nonwoven fabric before being compressed in the first step.
- the opening ratio and the basis weight of the nonwoven fabric can be appropriately reduced, and the penetration characteristics of the adhesive layer into the metal-coated nonwoven fabric can be further improved.
- an adhesive layer having an appropriate thickness can be easily formed on the surface of the metal-coated nonwoven fabric.
- a nonwoven fabric having an average thickness of 3/5 or less of the average thickness of the nonwoven fabric before compression in the first step.
- examples of the method of covering the surface of the fiber in the nonwoven fabric with the metal part include a plating method and a sputtering method.
- the plating method it is difficult to reduce the average thickness of the metal part, it is difficult to reduce the average thickness of the metal part to 2 ⁇ m or less, and it is even more preferable to reduce the average thickness of the metal part to 1 ⁇ m or less. Have difficulty.
- the coating uniformity by a metal part tends to deteriorate.
- the sputtering method it is easy to reduce the average thickness of the metal part, and it is easy to reduce the average thickness of the metal part to 1 ⁇ m or less. Further, in the sputtering method, the coating uniformity by the metal part is increased.
- the metal part is preferably formed by sputtering. By forming the metal part by sputtering, even if the metal part is thin, good electromagnetic shielding performance can be obtained.
- an adhesive layer can be formed by applying an adhesive to the surface of the metal-coated nonwoven fabric.
- FIG. 3 is a perspective view showing the coated core wire according to the first embodiment of the present invention.
- 3 includes a core wire 41 and a covering portion 42 that covers the surface of the core wire 41.
- the covered core wire according to the present invention includes a core wire and a covering portion covering the surface of the core wire.
- the covering portion is the metal-coated nonwoven fabric with an adhesive layer, and is formed of the metal-coated nonwoven fabric with an adhesive layer.
- coated part it is preferable that a part of said adhesive bond layer has soaked in the said metal-coated nonwoven fabric.
- the coated core wire preferably has a part of the adhesive layer in the metal-coated nonwoven fabric.
- the surface of the core wire may be a curved surface. In this invention, even if the said coating
- the covering portion is preferably annular.
- the annular covering portion may have a cutout portion in part. In this invention, even if the said coating
- Example 1 Non-woven fabric compression treatment A non-woven fabric (non-compressed nonwoven fabric, fiber diameter 4 ⁇ m) having an average thickness of 23.5 ⁇ m was prepared.
- the material of this nonwoven fabric is polyarylate-based polymer (PAR).
- the glass transition temperature of this nonwoven fabric material is 150 ° C. or higher.
- the above nonwoven fabric was calendered and compressed to obtain a compressed nonwoven fabric having an average thickness of 10 ⁇ m.
- An adhesive was applied on the surface of the metal-coated nonwoven fabric to form an adhesive layer having an average thickness of 10 ⁇ m to obtain a metal-coated nonwoven fabric with an adhesive layer.
- Example 2 to 16 and Comparative Examples 1 to 6 As shown in Table 1 below, a metal-coated nonwoven fabric with an adhesive layer was obtained in the same manner as in Example 1 except that the configuration of the metal-coated nonwoven fabric with an adhesive layer was changed.
- Comparative Examples 1 to 6 the nonwoven fabric was not compressed.
- a nonwoven fabric having an average thickness of 30 ⁇ m (non-compressed nonwoven fabric, fiber diameter of 4 ⁇ m) was used.
- the material of this nonwoven fabric is polyarylate-based polymer (PAR).
- the glass transition temperature of this nonwoven fabric material is 150 ° C. or higher.
- the metal part was formed by sputtering.
- the metal part was formed by plating.
- the plating temperature and the plating time were adjusted so that the metal part did not become too thick, and the plating proceeded moderately.
- nickel particles A (average particle size 2.2 ⁇ m) were used as adhesives.
- nickel particles B (average particle size 5 ⁇ m) were used as the adhesive.
- no conductive filler was used for the adhesive.
- Resistance A is less than 1 ⁇ ⁇ : Resistance A is 1 ⁇ or more, less than 1.2 ⁇ ⁇ : Resistance A is 1.2 ⁇ or more
- Rate of resistance change In each example, a calender untreated-metal-coated nonwoven fabric with an adhesive layer was obtained in the same manner except that the calender treatment was not performed.
- resistance B was evaluated using a four-terminal probe using Lorester (Mitsubishi Chemical Analytic Co., Ltd.). From the resistance A and the resistance B, the resistance change rate was determined according to the following criteria.
- Resistance A is less than 0.7 times the resistance B ⁇ : Resistance A is 0.7 times or more and less than 1.0 times the resistance B ⁇ : Resistance A is 1.0 times or more the resistance B
- Shield improvement rate Shield performance was evaluated using the KEC method (TSJ).
- TSJ KEC method
- a calender untreated-metal-coated nonwoven fabric with an adhesive layer was obtained in the same manner except that the calender treatment was not performed.
- the electric field shield value X in this uncalendered metal-coated nonwoven fabric with an adhesive layer is taken as a reference value.
- the shield improvement rate of the electric field shield value Y in the metal-coated nonwoven fabric with an adhesive layer in each example was evaluated.
- Electric field shield value Y is 1.1 times or more of electric field shield value X ⁇ : Electric field shield value Y is 1.02 times or more and less than 1.1 times electric field shield value X ⁇ : Electric field shield value Y is electric field shield value Less than 1.02 times X
- Example 1 In Examples 1, 2, 8, 15, and 16 in which the metal part was formed by sputtering, compared to Examples 3 to 7 and 9 to 14 in which the metal part was formed by plating, the metal coating with a plurality of adhesive layers was used. In the nonwoven fabric, the variation in the resistance A was small.
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Abstract
Description
図1は、本発明の第1の実施形態に係る接着剤層付き金属被覆不織布を示す断面図である。
本発明に係る接着剤層付き金属被覆不織布の製造方法は、圧縮前不織布を圧縮して、上記圧縮前不織布の平均厚みの4/5以下の平均厚みを有する不織布を得る第1の工程と、上記不織布における繊維の表面を金属部により被覆して、金属被覆不織布を得る第2の工程と、上記金属被覆不織布の一方の表面側に、接着剤層を配置して、接着剤層付き金属被覆不織布を得る第3の工程とを備える。
図3は、本発明の第1の実施形態に係る被覆芯線を示す斜視図である。
(1)不織布の圧縮処理
平均厚みが23.5μmである不織布(圧縮前不織布、繊維直径4μm)を用意した。この不織布の材料は、ポリアリレート系ポリマー(PAR)である。この不織布の材料のガラス転移温度が150℃以上である。
スパッタリングにより、得られた不織布における繊維の表面を金属部(内側の銅層の平均厚み270nm、外側のニッケル層の平均厚み30nm)により被覆して、金属被覆不織布を得た。
ブチルアクリレート(BA)85重量部と、2-エチルヘキシルアクリレート(2EHA)11重量部と、アクリル酸(AAC)3重量部と、ヒドロキシエチルアクリレート(HEA)1重量部と、ニッケル粒子A(平均粒子径2.2μm)を得られる接着剤中で30重量%となる量とを配合して、接着剤を得た。
下記の表1に示すように、接着剤層付き金属被覆不織布の構成を変更したこと以外は実施例1と同様にして、接着剤層付き金属被覆不織布を得た。
(1)反発
直径1mmの棒に、得られた接着剤層付き金属被覆不織布を接着剤層側から巻き付け、押し付けることにより貼り付けた。貼り付けてから85℃及び250時間放置した後に浮きの有無を確認した。
○:浮き無し
△:端部にわずかな浮きがある(使用上問題なし)
×:大きな浮きがある
JIS K7194に準拠し、ロレスター(三菱化学アナリティック社製)を用いて四端子プローブを用いて抵抗Aを評価した。
○:抵抗Aが1Ω未満
△:抵抗Aが1Ω以上、1.2Ω未満
×:抵抗Aが1.2Ω以上
各実施例において、カレンダ処理をしなかったこと以外は同様にして、カレンダ未処理-接着剤層付き金属被覆不織布を得た。この各実施例に対応するカレンダ未処理-接着剤層付き金属被覆不織布について、ロレスター(三菱化学アナリティック社製)を用いて四端子プローブを用いて抵抗Bを評価した。抵抗Aと抵抗Bとから、抵抗変化率を下記の基準で判定した。
○:抵抗Aが抵抗Bの0.7倍未満
△:抵抗Aが抵抗Bの0.7倍以上、1.0倍未満
×:抵抗Aが抵抗Bの1.0倍以上
KEC法(TSJ社製)を用いて、シールド性能を評価した。各実施例において、カレンダ処理をしなかったこと以外は同様にして、カレンダ未処理-接着剤層付き金属被覆不織布を得た。このカレンダ未処理-接着剤層付き金属被覆不織布における電界シールド値Xを基準値とする。この基準値である電界シールド値Xに対して、各実施例における接着剤層付き金属被覆不織布における電界シールド値Yのシールド向上率を評価した。
○:電界シールド値Yが電界シールド値Xの1.1倍以上
△:電界シールド値Yが電界シールド値Xの1.02倍以上、1.1倍未満
×:電界シールド値Yが電界シールド値Xの1.02倍未満
11…金属被覆不織布
12,13…接着剤層
31…被覆芯線
41…芯線
42…被覆部
Claims (13)
- 金属被覆不織布と、前記金属被覆不織布の一方の表面側に配置された接着剤層とを備え、
前記金属被覆不織布は、不織布と、前記不織布における繊維の表面を被覆している金属部とを有し、
前記金属部の平均厚みが2μm以下であり、
前記金属被覆不織布の平均厚みが25μm以下であり、
前記金属被覆不織布における開口率が1%以上、50%以下である、接着剤層付き金属被覆不織布。 - 前記金属部の平均厚みが1μm以下である、請求項1に記載の接着剤層付き金属被覆不織布。
- 前記金属部の材料が、ニッケル、銅又は銀を含む、請求項1又は2に記載の接着剤層付き金属被覆不織布。
- 前記金属被覆不織布の平均厚みが20μm以下である、請求項1~3のいずれか1項に記載の接着剤層付き金属被覆不織布。
- 前記金属被覆不織布における開口率が30%以下である、請求項1~4のいずれか1項に記載の接着剤層付き金属被覆不織布。
- 前記金属被覆不織布における開口率が3%以上である、請求項1~5のいずれか1項に記載の接着剤層付き金属被覆不織布。
- 前記不織布の材料のガラス転移温度が、150℃以上である、請求項1~6のいずれか1項に記載の接着剤層付き金属被覆不織布。
- 前記接着剤層が、導電性フィラーを含む、請求項1~7のいずれか1項に記載の接着剤層付き金属被覆不織布。
- 前記接着剤層における前記導電性フィラーの含有量が、0.1重量%以上、80重量%以下である、請求項8に記載の接着剤層付き金属被覆不織布。
- 請求項1~9のいずれか1項に記載の接着剤層付き金属被覆不織布の製造方法であって、
圧縮前不織布を圧縮して、前記圧縮前不織布の平均厚みの4/5以下の平均厚みを有する不織布を得る工程と、
前記不織布における繊維の表面を金属部により被覆して、金属被覆不織布を得る工程と、
前記金属被覆不織布の一方の表面側に、接着剤層を配置して、接着剤層付き金属被覆不織布を得る工程とを備える、接着剤層付き金属被覆不織布の製造方法。 - カレンダ処理により、前記圧縮前不織布を圧縮する、請求項10に記載の接着剤層付き金属被覆不織布の製造方法。
- スパッタリングにより、前記不織布における繊維の表面を金属部により被覆する、請求項10又は11に記載の接着剤層付き金属被覆不織布の製造方法。
- 芯線と、前記芯線の表面を被覆している被覆部とを備え、
前記被覆部が、請求項1~9のいずれか1項に記載の接着剤層付き金属被覆不織布である、被覆芯線。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201680035742.5A CN107709489B (zh) | 2015-10-07 | 2016-10-07 | 带粘接剂层的金属包覆无纺布、带粘接剂层的金属包覆无纺布的制造方法、及包覆芯线 |
KR1020187001070A KR20180068950A (ko) | 2015-10-07 | 2016-10-07 | 접착제층 부착 금속 피복 부직포, 접착제층 부착 금속 피복 부직포의 제조 방법, 및 피복 심선 |
US15/749,086 US10124562B2 (en) | 2015-10-07 | 2016-10-07 | Metal-coated nonwoven fabric with adhesive layer, process for producing metal-coated nonwoven fabric with adhesive layer, and covered core wire |
JP2016564110A JP6767267B2 (ja) | 2015-10-07 | 2016-10-07 | 接着剤層付き金属被覆不織布、接着剤層付き金属被覆不織布の製造方法、及び被覆芯線 |
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Cited By (2)
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JP2019085444A (ja) * | 2017-11-01 | 2019-06-06 | 日本バイリーン株式会社 | 導電性部材における通気性接着層を形成可能な布帛、および、導電性部材とその製造方法 |
US10519672B1 (en) * | 2016-07-01 | 2019-12-31 | Conductive Composites Company Ip, Llc | Electromagnetically shielded wallpaper |
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KR20170136064A (ko) * | 2016-05-30 | 2017-12-11 | 주식회사 아모그린텍 | 플렉시블 전자파 차폐시트 및 그를 구비한 전자기기 |
JP7363103B2 (ja) * | 2019-05-30 | 2023-10-18 | 東洋インキScホールディングス株式会社 | 電磁波シールドシートおよびプリント配線板 |
CN112469260B (zh) * | 2020-11-23 | 2024-09-10 | 南昌联能科技有限公司 | 屏蔽膜、屏蔽膜的制备方法及线缆 |
KR20230020071A (ko) | 2021-08-02 | 2023-02-10 | 삼성디스플레이 주식회사 | 표시장치 및 이를 포함하는 전자장치 |
US12090708B2 (en) | 2021-12-16 | 2024-09-17 | Textron Innovations Inc. | Self heating structural adhesives for out-of-autoclave and out-of-oven curing |
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JPWO2017061597A1 (ja) | 2018-07-26 |
US10124562B2 (en) | 2018-11-13 |
US20180222154A1 (en) | 2018-08-09 |
CN107709489A (zh) | 2018-02-16 |
CN107709489B (zh) | 2021-06-25 |
KR20180068950A (ko) | 2018-06-22 |
JP6767267B2 (ja) | 2020-10-14 |
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