JPS6380600A - Electromagnetic shielding sheet - Google Patents
Electromagnetic shielding sheetInfo
- Publication number
- JPS6380600A JPS6380600A JP22643286A JP22643286A JPS6380600A JP S6380600 A JPS6380600 A JP S6380600A JP 22643286 A JP22643286 A JP 22643286A JP 22643286 A JP22643286 A JP 22643286A JP S6380600 A JPS6380600 A JP S6380600A
- Authority
- JP
- Japan
- Prior art keywords
- pyrrole
- shielding sheet
- electromagnetic shielding
- sheet
- reaction
- 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
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims description 22
- 150000003839 salts Chemical class 0.000 claims description 9
- 239000003302 ferromagnetic material Substances 0.000 claims description 8
- 150000003233 pyrroles Chemical class 0.000 claims description 3
- 230000000379 polymerizing effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000005291 magnetic effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229920001940 conductive polymer Polymers 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- -1 Heusler alloy Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 229920000128 polypyrrole Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 229910001291 heusler alloy Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229910052952 pyrrhotite Inorganic materials 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
弦生分災
本発明は電磁波遮蔽シートに関するものであり、さらに
詳しくは予め強磁性体を付与しであるシート上に、導電
性高分子膜を生成させた電磁波遮蔽材に関するものであ
る。[Detailed description of the invention] The present invention relates to an electromagnetic wave shielding sheet, and more specifically to an electromagnetic wave shielding material in which a conductive polymer film is formed on a sheet that has been previously coated with a ferromagnetic material. It is related to.
従米艮虚 アール・ビー・ビョルクルンド（Ｒ，Ｂ。Conflict of adversity R.B. Bjorklund (R.B.
Ｂｊｏｒｋｌｕｎｄ）及びアイ・ルンドストローム（Ｉ
。Bjorklund) and I Lundström (I
.
Ｌｕｎｄｓｔｒｏｍ）は、「ジャーナル・オブ・エレク
トロニック・マテリアル（Ｊｏｕｒｎａｌ ｏｆ Ｅｌ
ｅｃｔｒｏｎ−ｉｃ Ｍａｔｅｒｉａｌｓ）ｊ（第１３
巻、Ｎｏ、 １．１９８４）の第２１１頁に、ピロール
系重合膜を濾紙上に成長させる方法を述べている。例え
ば、塩化第二鉄の水溶液を含浸させた濾紙を液体ピロー
ルもしくは気体ピロールに接触させると濾紙上にポリピ
ロール膜が生成し、その電気伝導率は１０−４〜１０１
０−１ＳＣ’の間にあることが示されている。Lundstrom) is the ``Journal of Electronic Materials''.
ectron-ic Materials)j (13th
Vol., No. 1.1984), page 211, describes a method for growing a pyrrole-based polymer membrane on filter paper. For example, when a filter paper impregnated with an aqueous solution of ferric chloride is brought into contact with liquid pyrrole or gaseous pyrrole, a polypyrrole film is formed on the filter paper, and its electrical conductivity is 10-4 to 101.
It is shown that it is between 0-1SC'.
また、本出願人は先の出願において、電気化学的に重合
膜た導電性高分子膜、例えばポリチェニレン及びポリピ
ロール膜の遮蔽材としての使用を開示している。The applicant has also disclosed in earlier applications the use of electrochemically polymerized conductive polymer films, such as polythenylene and polypyrrole films, as shielding materials.
しかしながら、これらは電磁波の電場成分に対しては一
定の遮蔽効果を示すものの、磁場成分に対する遮蔽効果
は必ずしも満足するものではない。However, although these exhibit a certain degree of shielding effect on the electric field component of electromagnetic waves, the shielding effect on the magnetic field component is not necessarily satisfactory.
電磁波遮蔽の問題は比較的新しく、電磁波遮蔽能を測定
する標準化された方法は未だ確立されていす、種々の方
法が提案されている。その中で簡便な方法としては遮蔽
材の電気伝導率を測定する方法がある。電磁波遮蔽材が
広範な周波数領域で充分な遮蔽能力を有するには、その
電気伝導率が０．ｌＳｃｍ−”程度であれば良いといわ
れている。電気化学的に得られる導電性高分子膜の多く
は上記必要条件を満たしており、電磁波の電場成分に対
して充分な遮蔽能を示すものの、磁場成分に対しては必
ずしも満足の行くものではなかった。The problem of electromagnetic shielding is relatively new, and a standardized method for measuring electromagnetic shielding ability has not yet been established, although various methods have been proposed. Among these methods, a simple method is to measure the electrical conductivity of the shielding material. In order for an electromagnetic wave shielding material to have sufficient shielding ability over a wide frequency range, its electrical conductivity must be 0. It is said that a conductive polymer film of the order of 1Scm-" is sufficient. Most conductive polymer films obtained electrochemically satisfy the above requirements and exhibit sufficient shielding ability against the electric field component of electromagnetic waves. The magnetic field component was not always satisfactory.
目 的
本発明は、従来の欠点を克服した、電場成分及び磁場成
分に対し、優れた電磁波遮蔽能力を有する電磁波遮蔽シ
ートを提供することを目的とする。Purpose The present invention aims to provide an electromagnetic wave shielding sheet that overcomes the conventional drawbacks and has excellent electromagnetic wave shielding ability for electric field components and magnetic field components.
構 成
本発明者は前記目的を達成するために鋭意研究した結果
、強磁性体を付与した担体上に、導電性塩の存在下ピロ
ールまたはピロール誘導体を化学的に重合させて製膜し
て得た電磁波遮蔽シートを提供することによって前記目
的が達成できることを見出した。Composition As a result of intensive research in order to achieve the above object, the present inventors obtained a film obtained by chemically polymerizing pyrrole or a pyrrole derivative in the presence of a conductive salt on a carrier provided with a ferromagnetic substance. It has been found that the above object can be achieved by providing an electromagnetic wave shielding sheet.
本発明は、導電性塩の存在下でピロールもしくはピロー
ル誘導体を化学的に膜状に重合させる反応において、そ
の膜の担体として、強磁性体を付与しであるシートを用
いることを特徴とする。The present invention is characterized in that, in a reaction in which pyrrole or a pyrrole derivative is chemically polymerized into a film in the presence of a conductive salt, a sheet coated with a ferromagnetic material is used as a carrier for the film.
強磁性体及びそれを付与する方法は、特に限定されるも
のではない。磁性体の例としては、鉄、コバルト、ニッ
ケル、マンガン等の金属もしくは上記金属を含むある種
の合金（例えば、ホイスラー合金、Ｍｎ−Ｂ１合金）も
しくは鉄の酸化物（例えば磁性フェライト）、磁硫鉄鉱
、希土類元素を含んだ化合物等を挙げることができる。The ferromagnetic material and the method for applying it are not particularly limited. Examples of magnetic materials include metals such as iron, cobalt, nickel, and manganese, or certain alloys containing the above metals (e.g., Heusler alloy, Mn-B1 alloy), iron oxides (e.g., magnetic ferrite), and pyrrhotite. , compounds containing rare earth elements, and the like.
また、強磁性体を付与する方法は、用いる担体に対して
接着性の良い樹脂に該強磁性体を分散させ、ワイヤーバ
ーあるいはブレードを用いて塗布しても良い。上記目的
に使用される樹脂に特に制限はなく、一般的には、アク
リル樹脂、エポキシ樹脂等が用い得る。導電性塩は、ピ
ロールの標準電極電位より高い標準電極電位を有する陽
イオンまたは陰イオンを含んでいるものなら良い。上記
条件を満たすイオンとして、例えば、Ｆｅ３ ＋、Ｃｅ
’″、Ｍｎ’ ”、ｓ２ｏ、”−１Ｍｎ０．−１Ｃｒ。Furthermore, the ferromagnetic material may be applied by dispersing the ferromagnetic material in a resin that has good adhesion to the carrier used, and applying the material using a wire bar or blade. There are no particular restrictions on the resin used for the above purpose, and generally acrylic resins, epoxy resins, etc. can be used. The conductive salt may be one containing a cation or anion having a standard electrode potential higher than that of pyrrole. Examples of ions satisfying the above conditions include Fe3+, Ce
''', Mn'', s2o, '-1Mn0.-1Cr.
０７′−等を挙げることができる。導電性塩の濃度は溶
媒１０当りに０．００１〜１モル、好ましくは０．０５
〜０．２モルである。07'-, etc. can be mentioned. The concentration of the conductive salt is 0.001 to 1 mol, preferably 0.05 mol per 10 of the solvent.
~0.2 mol.
導電性塩を溶解させる溶媒は、該導電性塩の溶解度積及
び用いられる接着性樹脂と担体シートとの不溶性とに基
づいて選択すれば良く、−般には、水、アセトニトリル
等が用いられる。The solvent for dissolving the conductive salt may be selected based on the solubility product of the conductive salt and the insolubility between the adhesive resin used and the carrier sheet, and water, acetonitrile, etc. are generally used.
本発明においてモノマーとしては、ピロール類の単独の
使用が好ましい。しかし、その相互混合物も用いられる
。モノマー濃度は、溶媒１Ｑ当り一般に０．００１〜０
．５モル、好ましくは０．０１〜０．２モルである。In the present invention, it is preferable to use pyrrole alone as the monomer. However, mutual mixtures thereof may also be used. The monomer concentration is generally 0.001 to 0 per 1Q of solvent.
．． 5 mol, preferably 0.01-0.2 mol.
本発明で用いられる膜担持シートの材質、面積等には特
に制限はない。一般には、紙、プラスチックフィルム等
が用い得る。後者にあっては、ポリエチレン、ポリエス
テル、ポリイミド、ポリビニルアルコール、ポリエチレ
ンオキサイド等を挙げることが出来る。There are no particular limitations on the material, area, etc. of the membrane-supporting sheet used in the present invention. Generally, paper, plastic film, etc. can be used. Examples of the latter include polyethylene, polyester, polyimide, polyvinyl alcohol, and polyethylene oxide.
本発明の重合反応は、均一反応もしくは不均一反応とし
て実施できる。すなわち、適当な濃度の導電性塩を含む
溶液中に、予め強磁性体を塗布したシートを浸漬し、攪
拌下モノマーを滴下させると良い。または、強磁性体塗
布シートに該溶液を湿潤させた後、液体ピロールもしく
は気体ピロールに接触させても良い。反応時間は特に用
いる導電性塩、反応条件等に依存する。The polymerization reaction of the present invention can be carried out as a homogeneous reaction or a heterogeneous reaction. That is, it is preferable to immerse a sheet coated with a ferromagnetic material in advance in a solution containing a conductive salt at an appropriate concentration, and drop the monomer while stirring. Alternatively, a ferromagnetic material coated sheet may be wetted with the solution and then brought into contact with liquid pyrrole or gaseous pyrrole. The reaction time depends particularly on the conductive salt used, reaction conditions, etc.
反応終了後、ポリピロール類で被覆されたシートを必要
に応じて溶媒で洗浄し、常温常圧で乾燥する。After the reaction is completed, the sheet coated with polypyrroles is washed with a solvent if necessary, and dried at room temperature and pressure.
以下、本発明を具体的実施例によってさらに詳しく説明
するが、本発明はこれに限定されるものではない。Hereinafter, the present invention will be explained in more detail with reference to specific examples, but the present invention is not limited thereto.
実施例 １
磁性フェライトをアクリル樹脂に重量濃度５０％で分散
した液を、５０μｍのブレードを用いて、厚さ２５μｍ
をもって塗布した直径１１ｃｍの濾紙を、０．１モルの
塩化第二鉄水溶液５００ｍ Ｑを含む直方体反応槽に浸
漬した。下部からマグネティックスターラーを用いて攪
拌しながら、これに最終濃度が０．０６モルになるよう
にピロールを滴下させた６滴下終了後も攪拌を続けた。Example 1 A liquid in which magnetic ferrite was dispersed in acrylic resin at a weight concentration of 50% was prepared using a 50 μm blade to a thickness of 25 μm.
A filter paper with a diameter of 11 cm coated with the above-mentioned solution was immersed in a rectangular parallelepiped reaction tank containing 500 mQ of a 0.1 molar ferric chloride aqueous solution. While stirring from the bottom using a magnetic stirrer, pyrrole was added dropwise to a final concentration of 0.06 mol. Stirring was continued even after 6 drops had been completed.
３時間後、濾紙を反応槽から取出し、水で洗浄し、室温
で２４時間風乾した。二端子法で測定した電気伝導度は
０．ｌ５ｃｍ−１程度であった。アメリカ連邦通信委員
会（ＦＣＣ）法に準じた電磁波干渉効果を測定したとこ
ろ、電場成分及び磁場成分に対して充分な遮蔽効果が認
められた。After 3 hours, the filter paper was removed from the reaction vessel, washed with water, and air-dried at room temperature for 24 hours. The electrical conductivity measured by the two-terminal method is 0. It was about 15 cm-1. When the electromagnetic wave interference effect was measured in accordance with the US Federal Communications Commission (FCC) law, a sufficient shielding effect was found for electric field components and magnetic field components.
効 果
本発明によれば、電磁波の磁場成分に対しても充分有効
で、任意の面積の電磁波遮蔽シートを提供することがで
きる。Effects According to the present invention, it is possible to provide an electromagnetic wave shielding sheet that is sufficiently effective against the magnetic field component of electromagnetic waves and has an arbitrary area.
４９７一4971
Claims (1)
ロールまたはピロール誘導体を化学的に重合させて製膜
して得た電磁波遮蔽シート。1. An electromagnetic shielding sheet obtained by chemically polymerizing pyrrole or a pyrrole derivative in the presence of a conductive salt and forming a film on a carrier provided with a ferromagnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22643286A JPS6380600A (en) | 1986-09-24 | 1986-09-24 | Electromagnetic shielding sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22643286A JPS6380600A (en) | 1986-09-24 | 1986-09-24 | Electromagnetic shielding sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6380600A true JPS6380600A (en) | 1988-04-11 |
Family
ID=16845021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22643286A Pending JPS6380600A (en) | 1986-09-24 | 1986-09-24 | Electromagnetic shielding sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6380600A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092719C (en) * | 1998-06-03 | 2002-10-16 | 南京大学 | Laminated composite magnetic conductive polymer film and its preparation method |
| US7408104B2 (en) | 2005-07-08 | 2008-08-05 | Hoshino Gakki Mfg. Co., Ltd. | Pedal device for drum |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60257234A (en) * | 1984-06-04 | 1985-12-19 | 日本電信電話株式会社 | Electromagnetic wave shielding film and manufacture thereof |
-
1986
- 1986-09-24 JP JP22643286A patent/JPS6380600A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60257234A (en) * | 1984-06-04 | 1985-12-19 | 日本電信電話株式会社 | Electromagnetic wave shielding film and manufacture thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092719C (en) * | 1998-06-03 | 2002-10-16 | 南京大学 | Laminated composite magnetic conductive polymer film and its preparation method |
| US7408104B2 (en) | 2005-07-08 | 2008-08-05 | Hoshino Gakki Mfg. Co., Ltd. | Pedal device for drum |
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