JPS614108A - Composition for shielding electromagnetic wave - Google Patents
Composition for shielding electromagnetic waveInfo
- Publication number
- JPS614108A JPS614108A JP12478184A JP12478184A JPS614108A JP S614108 A JPS614108 A JP S614108A JP 12478184 A JP12478184 A JP 12478184A JP 12478184 A JP12478184 A JP 12478184A JP S614108 A JPS614108 A JP S614108A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic wave
- fibers
- added
- weight
- parts
- 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
- 239000000203 mixture Substances 0.000 title claims description 17
- 239000000835 fiber Substances 0.000 claims description 33
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 22
- 239000000314 lubricant Substances 0.000 claims description 12
- 229920005992 thermoplastic resin Polymers 0.000 claims description 11
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 6
- 229930195729 fatty acid Natural products 0.000 claims description 6
- 239000000194 fatty acid Substances 0.000 claims description 6
- 150000004665 fatty acids Chemical class 0.000 claims description 6
- 239000000344 soap Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 13
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 239000004020 conductor Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 3
- 241000257465 Echinoidea Species 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- GWOWVOYJLHSRJJ-UHFFFAOYSA-L cadmium stearate Chemical compound [Cd+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O GWOWVOYJLHSRJJ-UHFFFAOYSA-L 0.000 description 2
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 1
- UKWUOTZGXIZAJC-UHFFFAOYSA-N 4-nitrosalicylic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1O UKWUOTZGXIZAJC-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- DCXXMTOCNZCJGO-UHFFFAOYSA-N Glycerol trioctadecanoate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 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
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 description 1
- 229940063655 aluminum stearate Drugs 0.000 description 1
- RAKMKCZMVZBODU-PIQLPZBWSA-L barium(2+);(z)-12-hydroxyoctadec-9-enoate Chemical compound [Ba+2].CCCCCCC(O)C\C=C/CCCCCCCC([O-])=O.CCCCCCC(O)C\C=C/CCCCCCCC([O-])=O RAKMKCZMVZBODU-PIQLPZBWSA-L 0.000 description 1
- AGXUVMPSUKZYDT-UHFFFAOYSA-L barium(2+);octadecanoate Chemical compound [Ba+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AGXUVMPSUKZYDT-UHFFFAOYSA-L 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- RXROCZREIWVERD-UHFFFAOYSA-L cadmium(2+);2-ethylhexanoate Chemical compound [Cd+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O RXROCZREIWVERD-UHFFFAOYSA-L 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- HIAAVKYLDRCDFQ-UHFFFAOYSA-L calcium;dodecanoate Chemical compound [Ca+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O HIAAVKYLDRCDFQ-UHFFFAOYSA-L 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- UQLDLKMNUJERMK-UHFFFAOYSA-L di(octadecanoyloxy)lead Chemical compound [Pb+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O UQLDLKMNUJERMK-UHFFFAOYSA-L 0.000 description 1
- SHZIWNPUGXLXDT-UHFFFAOYSA-N ethyl hexanoate Chemical compound CCCCCC(=O)OCC SHZIWNPUGXLXDT-UHFFFAOYSA-N 0.000 description 1
- HSEMFIZWXHQJAE-UHFFFAOYSA-N hexadecanamide Chemical compound CCCCCCCCCCCCCCCC(N)=O HSEMFIZWXHQJAE-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- GIWKOZXJDKMGQC-UHFFFAOYSA-L lead(2+);naphthalene-2-carboxylate Chemical compound [Pb+2].C1=CC=CC2=CC(C(=O)[O-])=CC=C21.C1=CC=CC2=CC(C(=O)[O-])=CC=C21 GIWKOZXJDKMGQC-UHFFFAOYSA-L 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 235000012245 magnesium oxide Nutrition 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical class [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- SJOCPYUKFOTDAN-ZSOIEALJSA-N methyl (4z)-4-hydroxyimino-6,6-dimethyl-3-methylsulfanyl-5,7-dihydro-2-benzothiophene-1-carboxylate Chemical compound C1C(C)(C)C\C(=N\O)C=2C1=C(C(=O)OC)SC=2SC SJOCPYUKFOTDAN-ZSOIEALJSA-N 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- TXSUIVPRHHQNTM-UHFFFAOYSA-N n'-(3-methylanilino)-n-phenyliminobenzenecarboximidamide Chemical compound CC1=CC=CC(NN=C(N=NC=2C=CC=CC=2)C=2C=CC=CC=2)=C1 TXSUIVPRHHQNTM-UHFFFAOYSA-N 0.000 description 1
- JFOJYGMDZRCSPA-UHFFFAOYSA-J octadecanoate;tin(4+) Chemical compound [Sn+4].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O JFOJYGMDZRCSPA-UHFFFAOYSA-J 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229940037312 stearamide Drugs 0.000 description 1
- FRKHZXHEZFADLA-UHFFFAOYSA-L strontium;octadecanoate Chemical compound [Sr+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O FRKHZXHEZFADLA-UHFFFAOYSA-L 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229940098697 zinc laurate Drugs 0.000 description 1
- GAWWVVGZMLGEIW-GNNYBVKZSA-L zinc ricinoleate Chemical compound [Zn+2].CCCCCC[C@@H](O)C\C=C/CCCCCCCC([O-])=O.CCCCCC[C@@H](O)C\C=C/CCCCCCCC([O-])=O GAWWVVGZMLGEIW-GNNYBVKZSA-L 0.000 description 1
- 229940100530 zinc ricinoleate Drugs 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
- 229940057977 zinc stearate Drugs 0.000 description 1
- IFNXAMCERSVZCV-UHFFFAOYSA-L zinc;2-ethylhexanoate Chemical compound [Zn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O IFNXAMCERSVZCV-UHFFFAOYSA-L 0.000 description 1
- GPYYEEJOMCKTPR-UHFFFAOYSA-L zinc;dodecanoate Chemical compound [Zn+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O GPYYEEJOMCKTPR-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Conductive Materials (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】
〔発明の分野〕
本発明は電磁波遮蔽用に用いる導電性樹脂組成物、特に
従来の電磁波遮蔽用組成物に比較して良好な電磁波遮蔽
効果を有するとともに、製造工程の能率化および電磁波
遮蔽用製品における電磁波遮蔽効果の再現性の良好な電
磁波遮蔽用組成物に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention provides a conductive resin composition used for shielding electromagnetic waves, and in particular has a better electromagnetic shielding effect than conventional compositions for shielding electromagnetic waves, and also improves the manufacturing process. The present invention relates to an electromagnetic shielding composition that improves efficiency and has good reproducibility of electromagnetic shielding effect in electromagnetic shielding products.
欧米諸国においては、電子機器の近傍に置かれた他の電
子機器あるいは電気製品の誤動作および電子機器を操作
する人間の健康上の配慮から前記の電子機器、すなわち
コンピュータ、ワードプロセンサーなどのハウジングに
前記電子機器の発する電磁波を遮蔽するような処理をし
たものを用いることが義務イ］けられている。In Western countries, the housings of electronic devices such as computers, word processing sensors, etc. are It is mandatory to use a device that has been treated to shield electromagnetic waves emitted by the electronic device.
前述のような電子機器における電磁波遮蔽は、我が国に
おいても早暁義務付けられる傾向にあり、種々の電磁波
遮蔽方法が検討されている。Electromagnetic wave shielding in electronic equipment as described above is becoming mandatory in Japan as well, and various electromagnetic wave shielding methods are being considered.
前述のような電磁波の遮蔽は、基本的には電子機器を覆
うハウジングに適度の導電ｉ生を付与することにより達
成しえるわけであり、従来はハウジング内壁に亜鉛を溶
射して亜鉛被膜を形成させ、ハウジングに導電性を付与
する方法、またハウジング内部に導電性塗料を塗布し、
ハウジングに導電性を付与する方法などが良く知られて
いる。Shielding of electromagnetic waves as mentioned above can basically be achieved by imparting a suitable amount of conductivity to the housing that covers the electronic device. Conventionally, zinc was thermally sprayed on the inner wall of the housing to form a zinc coating. A method of imparting conductivity to the housing, and a method of applying conductive paint to the inside of the housing.
Methods of imparting electrical conductivity to the housing are well known.
さらに、ハウジングの本体となる熱可塑性樹脂に導電性
材料を導入し、ハウジング自体を導電性にしたものも知
られている。Furthermore, it is also known that a conductive material is introduced into the thermoplastic resin that forms the main body of the housing, thereby making the housing itself conductive.
しかしながら、前述の亜鉛溶射による方法ないし導電性
塗料をハウジング内壁に塗布する方法にあっては、あら
かじめ成型されたハウジング内壁に亜鉛を溶射あるいは
導電性塗料を塗布するわけであるから、製造上手間が掛
かるとともに、特に導電性塗料にあっては、導電性塗料
自体が高価であるために、コスト高にならざるをえない
という欠点があった。However, in the method of zinc spraying or applying conductive paint to the inner wall of the housing as described above, the manufacturing time is reduced because zinc is sprayed or the conductive paint is applied to the inner wall of the housing that has been formed in advance. In addition, especially in the case of conductive paints, the conductive paint itself is expensive, so there is a drawback that the cost is inevitably high.
また、導電性材料を熱可塑性樹脂に混合したハウジング
は、導電性を電磁波遮蔽効果のある、体積固有抵抗１０
−１〜１０−３Ω値に保持しようとすると、導電性材料
の混入量を多くしなければならず強度的に低下する欠点
があり、一方充分な強度を有するハウジングを製造しよ
うとすると、導電性が前記の値にならないという欠点が
あった。このため、少ない導電性材料の添加量で良好な
電磁波遮蔽効果を有する電磁波遮蔽用組成物が希求され
ている。充分な強度を有し、かつ良好な前述のＩ
体積固有抵抗を有する電磁波遮蔽用組成物
は、従来の導電性材料と同じ添加量で、改良された電磁
波遮蔽効果を示すような組成物を提供することにより解
決されることは明らかである。In addition, the housing made by mixing conductive material with thermoplastic resin has a volume resistivity of 10, which has a conductivity and electromagnetic wave shielding effect.
If you try to maintain the value within the range of -1 to 10-3Ω, you will have to mix in a large amount of conductive material, which has the disadvantage of lowering the strength.On the other hand, if you try to manufacture a housing with sufficient strength, the conductivity There was a drawback that the value did not reach the above-mentioned value. Therefore, there is a need for an electromagnetic wave shielding composition that has a good electromagnetic wave shielding effect with a small amount of conductive material added. The above-mentioned I having sufficient strength and good
It is clear that the problem with electromagnetic shielding compositions having a volume resistivity is to provide such compositions that exhibit an improved electromagnetic shielding effect at the same loading as conventional electrically conductive materials.
本発明は上述の点に鑑みなされたものであり、充分な強
度と導電性を有する電磁波遮蔽用の製品を製造しえる電
磁波遮蔽用組成物を提供することを目的とする。The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide an electromagnetic shielding composition that can produce an electromagnetic shielding product having sufficient strength and conductivity.
したがって、本発明による電磁波遮蔽用組成物は、熱可
塑性樹脂に金属繊維を添加するとともに、前記熱可塑性
樹脂１００重量部に対し脂肪酸アミドおよび金属石鹸か
らなる群より選択された滑剤の一種以上を０．１〜２重
量部添加したことを特徴とするものである。Therefore, in the electromagnetic wave shielding composition according to the present invention, metal fibers are added to a thermoplastic resin, and 0 or more lubricants selected from the group consisting of fatty acid amides and metal soaps are added to 100 parts by weight of the thermoplastic resin. It is characterized by adding .1 to 2 parts by weight.
本発明によれば金属繊維とともに脂肪酸アミドおよび金
属石鹸よりなる群より選択された一種以上の滑剤を添加
しているので、電磁波遮蔽用製品の強度を低下せしめる
ことなく、電磁波遮蔽効果を良好にすることができると
いう利点がある。According to the present invention, since one or more lubricants selected from the group consisting of fatty acid amides and metal soaps are added together with metal fibers, the electromagnetic wave shielding effect is improved without reducing the strength of the electromagnetic wave shielding product. It has the advantage of being able to
また、本発明によって添加される滑剤は、導電性材料で
ある金属繊維のファイバボールの形成を防止でき、前記
金属繊維を熱可塑性樹脂中に均一に分散できるようにな
り、このため金属繊維を一度に多量に投入可能になると
ともに、電磁波遮蔽効果が製品によってばらつきを生じ
ることを防止できる。したがって、作業性が著しく向上
し、製品の再現性が向上するという利点がある。In addition, the lubricant added according to the present invention can prevent the formation of fiber balls in the metal fibers, which are conductive materials, and can uniformly disperse the metal fibers in the thermoplastic resin. In addition, it is possible to prevent variations in the electromagnetic wave shielding effect depending on the product. Therefore, there are advantages in that workability is significantly improved and product reproducibility is improved.
本発明を更に詳しく説明する。 The present invention will be explained in more detail.
本発明による電磁波遮蔽用組成物は、基本的には、熱可
塑性樹脂中に金属繊維を混合したものであるが、このよ
うな熱可塑性樹脂は、基本的に限定されるものではなく
、従来この種の電子機器のハウジングなどに用いられる
樹脂を有効に用いることができる。たとえば、ポリプロ
ピレン樹脂、へＢＳ樹脂、変性ｐｐｏ樹脂、ポリアミド
樹脂、ポリカーボネート樹脂、ＰＰｓ樹脂などの一種以
上であることができる。The electromagnetic wave shielding composition according to the present invention is basically a mixture of metal fibers in a thermoplastic resin, but such a thermoplastic resin is not fundamentally limited, and conventionally Resins used for housings of various types of electronic devices can be effectively used. For example, it can be one or more of polypropylene resin, hexaBS resin, modified PPO resin, polyamide resin, polycarbonate resin, PPs resin, and the like.
本発明において用いられる導電性物質は、前述のように
金属繊維であるが、本発明に用いられる金属繊維は基本
的に限定されるものではない。たとえば、びびり振動切
削法、引抜き法あるいは溶融紡糸法などによって製造さ
れたアルミニウム繊維、ステンレス繊維、銅繊維、鉛繊
維、タングステン繊維、モリブデン繊維、あるいはＡｌ
−ＭｇないしＡｌ−Ｃａなどの八１合金繊維、黄銅など
のＣｕ合金繊維等の一種以上を有効に用いることができ
る。The conductive substance used in the present invention is a metal fiber as described above, but the metal fiber used in the present invention is not fundamentally limited. For example, aluminum fibers, stainless steel fibers, copper fibers, lead fibers, tungsten fibers, molybdenum fibers, or Al
- One or more types of 81 alloy fibers such as Mg or Al-Ca, Cu alloy fibers such as brass, etc. can be effectively used.
本発明による熱可塑性樹脂への金属繊維の添加量は、好
ましくは金属繊維が５〜２５容量％であり、単位体積あ
たりの存在本数は、好ましくはＳｏｏ本／ ｃｒＡ以上
である。金属繊維の添加量が５容量％未満であると、充
分な導電性を付与できない虞があり、また２５容量％を
超えると、電磁波遮蔽用組成物の成形が困ｆｆ１ｆｆｌ
になる虞を生じるからである。また、単位体積あたりの
存在本数が５００本／ｄ未満であると、充分な導電性を
発揮できない虞があるからである。The amount of metal fibers added to the thermoplastic resin according to the present invention is preferably 5 to 25% by volume, and the number of metal fibers per unit volume is preferably Soo fibers/crA or more. If the amount of metal fiber added is less than 5% by volume, sufficient conductivity may not be imparted, and if it exceeds 25% by volume, it may be difficult to mold the electromagnetic shielding composition.
This is because there is a risk that it will become. Further, if the number of fibers per unit volume is less than 500 fibers/d, there is a risk that sufficient conductivity may not be exhibited.
このような組成物に脂肪酸アミドおよび金属石鹸からな
る群より選択された滑剤の一種以上を添加する。Added to such compositions is one or more lubricants selected from the group consisting of fatty acid amides and metal soaps.
このような滑剤は、金属＆ｌＩｌ維のファイバボール化
、すなわち金属繊維が丸まってボール状になることを防
止することにより、金属繊維が樹脂中に均一に分散する
ように添加される。このため、本発明による電磁波遮蔽
用組成物を使用して製造された成形品は安定な電磁波遮
蔽効果を示すことになり、再現性よく電磁波遮蔽用組成
物を製造できるようになる。また、この滑剤を添加する
ことにより金属繊維を一度に多量に添加可能になるとと
もに、押出機のノズルの詰まりを防止でき、また金属繊
維の切断を防止できるので、電磁波遮蔽効果も向上させ
ることができる。Such a lubricant is added so that the metal fibers are uniformly dispersed in the resin by preventing the metal fibers from forming into fiber balls, that is, from curling the metal fibers into a ball shape. Therefore, a molded article manufactured using the electromagnetic wave shielding composition according to the present invention exhibits a stable electromagnetic wave shielding effect, and the electromagnetic wave shielding composition can be manufactured with good reproducibility. In addition, by adding this lubricant, it is possible to add a large amount of metal fibers at once, and it also prevents clogging of the extruder nozzle and cutting of the metal fibers, which improves the electromagnetic wave shielding effect. can.
このような脂肪酸アミドとしては、たとえばエチレンビ
スステアリン酸アミド、オキシステアリン酸アミド、ス
テアリン酸アミド、パルミチン酸アミドなどの一種以上
を例として挙げることができ、また金属石鹸としては、
ステアリン酸カドミ（ウニ２．ウワツ酸ヵ）、、ウニ、
＋７．／−、、＠ヵ。Examples of such fatty acid amides include one or more of ethylene bisstearamide, oxystearamide, stearamide, palmitic acid amide, etc., and metal soaps include:
Cadmium stearate (sea urchin 2. cadmium stearate), sea urchin,
+7. /-,,@ka.
ミウム、ナフテン酸カドミウム、２−エチルへキソイン
酸カドミウム、ステアリン酸バリウム、ラウリン酸バリ
ウム、リシノール酸バリウム、ナフテン酸バリウム、２
−エチルへキソイン酸バリウム、ステアリン酸カルシウ
ム、ラウリン酸カルシウム、リシノール酸カルシウム、
ステアリン酸ストロンチｄム、ステアリン酸亜鉛、ラウ
リン酸亜鉛、リシノール酸亜鉛、２−エチルへキソイン
酸亜鉛、ステアリン酸鉛、二塩基性ステアリン酸鉛、ナ
フテン酸鉛、ステアリン酸スズ、ステアリン酸アルミニ
ウム、ステアリン酸マグネシウムなどの一種以上を挙げ
ることができる。Cadmium naphthenate, cadmium 2-ethylhexoate, barium stearate, barium laurate, barium ricinoleate, barium naphthenate, 2
- barium ethylhexoate, calcium stearate, calcium laurate, calcium ricinoleate,
Strontium stearate, zinc stearate, zinc laurate, zinc ricinoleate, zinc 2-ethylhexoate, lead stearate, dibasic lead stearate, lead naphthenate, tin stearate, aluminum stearate, stearin One or more types of magnesium oxides can be mentioned.
このような脂肪酸アミドおよび金属石鹸からなる群より
選択された滑剤の一種以上は、熱可塑性樹脂１００重量
部に対し、０．１〜２重量部、好ましくは０．５〜１．
５重量部添加される。滑剤の添加量が０．１重量部未満
であると、滑剤を添加した効果がなく、一方２重量部を
超えると、樹脂成形品に耐熱性が不足する虞を生じるか
らである。The amount of one or more lubricants selected from the group consisting of fatty acid amides and metal soaps is 0.1 to 2 parts by weight, preferably 0.5 to 1.0 parts by weight, based on 100 parts by weight of the thermoplastic resin.
5 parts by weight are added. This is because if the amount of the lubricant added is less than 0.1 parts by weight, the effect of adding the lubricant is not achieved, while if it exceeds 2 parts by weight, there is a risk that the resin molded product will lack heat resistance.
次ぎに本発明の実施例について説明する。Next, examples of the present invention will be described.
実施例１
ＡＢＳ樹脂１００重量部に対し、径３０μｍ、長さ２１
）ｍ１アスペクト比６７のＡ１繊維を２２容量％（７２
重量部）を添加するとともに、種々の滑剤 １．２重量
部を添加し、電磁遮蔽効果を測定した。測定はタケダ理
研製のＴＲ−１７３０１とＴＲ−４１７２を併用し、磁
界波（どちらも１００ＭＨｚ〜６０ＱＭＨｚの平均）に
ついて行った。Example 1 100 parts by weight of ABS resin, diameter 30 μm, length 21
) m1 A1 fiber with an aspect ratio of 67 is 22% by volume (72
(parts by weight) and 1.2 parts by weight of various lubricants were added to measure the electromagnetic shielding effect. The measurements were carried out using a combination of TR-17301 and TR-4172 manufactured by Takeda Riken, using magnetic field waves (both averaged from 100 MHz to 60 QMHz).
結果を第１表に示す。The results are shown in Table 1.
第１表
実施例２
ＡＢＳ樹脂１００重量部に対し、径３０μｍ、長さ２Ｉ
Ｉｍ、アスペクト比６７のＡｌ＆ｌｌ維を２２容量％（
７２重量部）を添加するとともに、滑剤としてエチレン
ビスステアリン酸アミドを１．２重量部添加した電磁波
遮蔽用組成物を製造した。このときのＡＢＳ樹脂への＾
ｌ繊維の添加速度はＩＫｇあたり１２〜１３分で良好に
混練可能であった。エチレンビスステアリン酸アミドを
添加していない場合はＩ Ｋｇあたり２５分かかるので
、ＡＩ織繊維添加時間は約半分に短縮できることが明ら
かになった。Table 1 Example 2 For 100 parts by weight of ABS resin, diameter 30 μm, length 2I
Im, 22% by volume of Al&ll fibers with an aspect ratio of 67 (
72 parts by weight) and 1.2 parts by weight of ethylene bisstearamide as a lubricant was produced. At this time, to ABS resin ^
The addition rate of l fiber was 12 to 13 minutes per Ikg, which allowed for good kneading. It has been found that the AI woven fiber addition time can be reduced to about half since it takes 25 minutes per I kg when ethylene bisstearamide is not added.
以上説明したよ・うに、本発明による電磁波遮蔽組成物
は、良好な電磁波遮蔽効果を有する電磁波遮蔽用製品を
製造することができるとともに、作業性良く電磁波遮蔽
用組成物を製造することも可能になるという利点がある
。As explained above, the electromagnetic shielding composition according to the present invention can not only produce an electromagnetic shielding product having a good electromagnetic shielding effect, but also make it possible to produce an electromagnetic shielding composition with good workability. It has the advantage of being
Claims (1)
記熱可塑性樹脂１００重量部に対し脂肪酸アミドおよび
金属石鹸からなる群より選択された滑剤の一種以上を０
．１〜２重量部添加したことを特徴とする電磁波遮蔽用
組成物。(1) Metal fibers are added to the thermoplastic resin, and at least one lubricant selected from the group consisting of fatty acid amides and metal soaps is added to 100 parts by weight of the thermoplastic resin.
．． An electromagnetic wave shielding composition characterized in that 1 to 2 parts by weight is added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12478184A JPS614108A (en) | 1984-06-18 | 1984-06-18 | Composition for shielding electromagnetic wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12478184A JPS614108A (en) | 1984-06-18 | 1984-06-18 | Composition for shielding electromagnetic wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS614108A true JPS614108A (en) | 1986-01-10 |
Family
ID=14893954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12478184A Pending JPS614108A (en) | 1984-06-18 | 1984-06-18 | Composition for shielding electromagnetic wave |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS614108A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62174264A (en) * | 1986-01-27 | 1987-07-31 | Idemitsu Petrochem Co Ltd | Metallic fiber-filled resin composition |
| JPH0264680A (en) * | 1988-08-31 | 1990-03-05 | Mita Ind Co Ltd | Heating and fixing device |
-
1984
- 1984-06-18 JP JP12478184A patent/JPS614108A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62174264A (en) * | 1986-01-27 | 1987-07-31 | Idemitsu Petrochem Co Ltd | Metallic fiber-filled resin composition |
| JPH0264680A (en) * | 1988-08-31 | 1990-03-05 | Mita Ind Co Ltd | Heating and fixing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4783279A (en) | Plastic mixture with electromagnetic shielding characteristics | |
| JPS5765754A (en) | Electromagnetic wave-shielding electrically conductive plastic composition | |
| JPS614108A (en) | Composition for shielding electromagnetic wave | |
| JPH0249040B2 (en) | ||
| JPS6325627B2 (en) | ||
| DE3522084A1 (en) | Plastic composition which is an electrical insulator and a good heat conductor and contains aluminium powder particles as filler, and a process for the preparation thereof | |
| JPS61155456A (en) | Electromagnetic wave shielding composition | |
| JPS63468B2 (en) | ||
| JPS6251983B2 (en) | ||
| JPS61155458A (en) | Electromagnetic wave shielding composition | |
| JPS61155454A (en) | Electromagnetic wave shielding composition | |
| JPH0234123B2 (en) | DENJIHASHAHEIYOSOSEIBUTSU | |
| JPH0461028B2 (en) | ||
| JPS61190559A (en) | Composition for shielding electromagnetic wave | |
| JPH0361705B2 (en) | ||
| JPH0361708B2 (en) | ||
| JPS61190558A (en) | Composition for shielding electromagnetic wave | |
| JPS6251984B2 (en) | ||
| JPH0361707B2 (en) | ||
| JPH0234124B2 (en) | DENJIHASHAHEIYOSOSEIBUTSU | |
| JPS6160760A (en) | Electromagnetic wave shielding composition | |
| JPH0340883B2 (en) | ||
| JPS61155453A (en) | Electromagnetic wave shielding composition | |
| JPS63211699A (en) | Electromagnetic shielding compound | |
| JPS61278565A (en) | Electromagnetic wave-shielding electrically conductive composition |