JPS608055A - Method of manufacturing electromagnetic shielding - Google Patents
Method of manufacturing electromagnetic shieldingInfo
- Publication number
- JPS608055A JPS608055A JP58117907A JP11790783A JPS608055A JP S608055 A JPS608055 A JP S608055A JP 58117907 A JP58117907 A JP 58117907A JP 11790783 A JP11790783 A JP 11790783A JP S608055 A JPS608055 A JP S608055A
- Authority
- JP
- Japan
- Prior art keywords
- paint
- radiation
- paint layer
- curable conductive
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000003973 paint Substances 0.000 claims description 33
- 230000005855 radiation Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 12
- 238000010894 electron beam technology Methods 0.000 description 6
- 239000011231 conductive filler Substances 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 〔発明の技術分野〕 表面平滑性に優れた電磁遮蔽体の製造方法に関する。[Detailed description of the invention] [Technical field of invention] This invention relates to a method of manufacturing an electromagnetic shield with excellent surface smoothness.
各種エレクトロニクス機器の普及に伴ない、これら機器
に対する、あるいはこれら機器による電磁波障害が問題
になりつつある。対策としては、導電性フィラーをポリ
マーに添加した、いわゆる導電性ポリマーを筐体に使用
したり、塗料として用いることがよく知られている。導
電性フィラーとしては、金属フィラメン、フレークや金
属酸化物の粉末あるいはカーボンブラック等を単独もし
くは組合せて用いられることが多く、又優れた電磁遮蔽
特性を得る為には、高透磁率、低導電率ににポリマーに
添加することが必要となる。この為、通常の熱可塑性ポ
リマー等では、添加量が多くなると機械的強度の低下や
成形加工性が悪くなる等実用に耐えない場合が多い。導
電性フィラーが多量に添加でき、成形性に優れた材料と
しては、導電性塗料があげられる。所が導電性塗料を用
いて成形物を作成しようとする場合、成形物の寸法精度
のコントロールが困難であり、表面の平滑性に欠けると
いう欠点があった。本発明は、これらの問題点を解決す
べく検討したものである。With the spread of various electronic devices, electromagnetic interference to or from these devices is becoming a problem. As a countermeasure, it is well known to use a so-called conductive polymer in which a conductive filler is added to the polymer for the housing or as a paint. As conductive fillers, metal filaments, flakes, metal oxide powders, carbon black, etc. are often used alone or in combination.In order to obtain excellent electromagnetic shielding properties, high magnetic permeability and low conductivity are often used. It is necessary to add it to the polymer. For this reason, with ordinary thermoplastic polymers, if the amount added is large, mechanical strength decreases, moldability deteriorates, etc., and it is often not practical. An example of a material to which a large amount of conductive filler can be added and which has excellent moldability is conductive paint. However, when trying to create a molded article using a conductive paint, it is difficult to control the dimensional accuracy of the molded article, and the surface lacks smoothness. The present invention was developed to solve these problems.
本発明は、離型フィルム上に第１放射線硬化導電性塗料
を塗布した後、放射線照射により該塗料を硬化せしめて
第］塗料層を形成し、次いで、該第１塗料層上に、他の
離型フィルム上に形成された他の第１塗料層を、第２放
射線硬化導電性塗料から成る層を介在せしめて重ね合せ
、然る後、放射線を照射して上記第２放射線硬化導電性
塗料を硬化せしめて第２塗料層を形成させることを特徴
とする電磁遮蔽体の製造方法である。In the present invention, after applying a first radiation-curable conductive paint on a release film, the paint is cured by radiation irradiation to form a second paint layer, and then another layer is applied on the first paint layer. Another first paint layer formed on the release film is superimposed with a layer of a second radiation-curable conductive paint interposed therebetween, and then radiation is irradiated to form the second radiation-curable conductive paint. This is a method for manufacturing an electromagnetic shielding body, characterized in that a second coating layer is formed by curing the electromagnetic shielding material.
性液状ポリマー、多官能性オリゴマー、多官能性モノマ
ーノ混合物ヲヘースに、スチールファイバー、アルミフ
ァイバー、フェライト粉末、カーボンブラック等導電性
フィラーを添加することにより導電性を付与したもので
ある。第２放射線硬化導電性塗料は第１放射線硬化塗料
と同様のものであっても、導電性フィラー、モノマー等
の異なるものであってもよい。互に重ね合わされる第１
塗料層に該塗料を介在させる方法は、一方の第１塗料層
に塗布しても、又は両方の第１塗料層に塗布彎−→吻し
てもよい離型フィルムとしては、放射線硬化塗料を塗布
し、放射線硬化させた後に塗料とフィルムが容易に剥離
するもので、ポリエステルフィルム、セロファンフィル
ム等が適している。Conductivity is imparted to a mixture of a liquid polymer, a polyfunctional oligomer, and a polyfunctional monomer by adding conductive fillers such as steel fibers, aluminum fibers, ferrite powder, and carbon black. The second radiation-curable conductive paint may be the same as the first radiation-curable paint, or may contain a different conductive filler, monomer, etc. The first layer is superimposed on each other.
The method of interposing the paint in the paint layer is to use a radiation-curable paint as a release film that may be applied to one first paint layer or both first paint layers. The paint and film can be easily peeled off after being applied and cured by radiation, and polyester film, cellophane film, etc. are suitable.
使用する放射線としては、γ線、電子線等があり、電磁
遮蔽体の厚さが１０ｍＭ、以上の厚肉のものではγ線が
、それ朱ｒｉ：Ｉのものでは工業的に取扱い易い点から
電子線が適している。本発明により得られた電磁遮蔽体
は離型フィルムを除却した状態で使用される。以下に具
体例をもって本発明を説明する。The radiation used includes gamma rays, electron beams, etc. Gamma rays are used for electromagnetic shields with a thickness of 10 mm or more, and those for Zhuri:I are used because they are easy to handle industrially. Electron beam is suitable. The electromagnetic shield obtained by the present invention is used with the release film removed. The present invention will be explained below using specific examples.
組成物に対し、フェライト粉末（２〜１μ）を７０％添
加して成る第１放射線硬化導電性塗料を、市販のポリエ
ステルフィルム（２５μ）に厚さ０．４・ｍｘで塗布し
、２Ｍｅｖの電子線加速器で１５ Ｍｒａｄ 電子線を
照射し、第１塗料層と離型フィルムとから成る基板を１
対作成した。該第１塗料層上に前述の第１放射線硬化導
電性塗料と同様の第２放射線硬化導電性塗料をおよそ０
．２ｍ７ＩＬの厚さで塗布し、残りの基板をその上から
重ね合せ、全体の厚さが１．０５１１１ｉになる様にプ
レスで成型した。A first radiation-curable conductive paint containing 70% ferrite powder (2-1μ) added to the composition was applied to a commercially available polyester film (25μ) to a thickness of 0.4 mx, and a 2Mev electron beam was applied. A substrate consisting of a first paint layer and a release film is irradiated with a 15 Mrad electron beam using a line accelerator.
Created vs. A second radiation-curable conductive paint similar to the first radiation-curable conductive paint described above is applied on the first paint layer to approximately zero
．． It was coated to a thickness of 2m7IL, and the remaining substrate was stacked on top of it, and molded using a press so that the total thickness was 1.05111i.
次にこの貼合せ基板を、２ＭｅＶの電子線加速器で１５
Ｍｒａｄ 電子線を照射し、全体を硬化せしめた。得
られた電磁遮蔽体の断面図を第１図に示した。この電磁
遮蔽体の上下のポリエステル離型フィルムをはがし、厚
みを測定した所、１．Ｏｗｎ±０．０１鰭と非常に平滑
な面をもつ電磁遮蔽体であることが確認できた。Next, this bonded substrate was subjected to a 2 MeV electron beam accelerator for 15
The whole was cured by irradiation with Mrad electron beam. A cross-sectional view of the obtained electromagnetic shield is shown in FIG. When the polyester release films on the top and bottom of this electromagnetic shield were peeled off and the thickness was measured, 1. It was confirmed that it was an electromagnetic shield with an own±0.01 fin and a very smooth surface.
塗料層である。 ５− 芳１図 It is a paint layer. 5- Yoshi 1 figure
Claims (1)
布した後、放射線照射により該塗料を硬化せしめて第１
塗料層を形成し、次いで、該第１塗料層上に、他の離型
フィルム上に形成された他の第）１塗料層を、第２放射
線硬化導電性塗料から成る層を介在せしめて重ね合せ、
然る後、放射線を照射して」二記第２放射線硬化導電性
塗料を硬化せしめて第２塗料層を形成させることを特徴
とする電磁遮蔽体の製造方法。(1) After applying the first radiation-curable conductive paint onto the release film, the paint is cured by radiation irradiation and the first radiation-curable conductive paint is applied.
A paint layer is formed, and then another first paint layer formed on another release film is superimposed on the first paint layer with a second radiation-curable conductive paint layer interposed therebetween. Combined,
2. A method for manufacturing an electromagnetic shield, comprising: thereafter irradiating with radiation to cure the second radiation-curable conductive paint to form a second paint layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58117907A JPS608055A (en) | 1983-06-28 | 1983-06-28 | Method of manufacturing electromagnetic shielding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58117907A JPS608055A (en) | 1983-06-28 | 1983-06-28 | Method of manufacturing electromagnetic shielding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS608055A true JPS608055A (en) | 1985-01-16 |
Family
ID=14723136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58117907A Pending JPS608055A (en) | 1983-06-28 | 1983-06-28 | Method of manufacturing electromagnetic shielding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS608055A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2452496A (en) * | 2007-09-05 | 2009-03-11 | Geoffrey John Cook | EDM machine attachment and method for machining winkle or tunnel gates in injection mould tools |
-
1983
- 1983-06-28 JP JP58117907A patent/JPS608055A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2452496A (en) * | 2007-09-05 | 2009-03-11 | Geoffrey John Cook | EDM machine attachment and method for machining winkle or tunnel gates in injection mould tools |
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