JPS63211698A - Electromagnetic shielding compound - Google Patents
Electromagnetic shielding compoundInfo
- Publication number
- JPS63211698A JPS63211698A JP25389787A JP25389787A JPS63211698A JP S63211698 A JPS63211698 A JP S63211698A JP 25389787 A JP25389787 A JP 25389787A JP 25389787 A JP25389787 A JP 25389787A JP S63211698 A JPS63211698 A JP S63211698A
- Authority
- JP
- Japan
- Prior art keywords
- parts
- weight
- electromagnetic wave
- wave shielding
- added
- 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.)
- Granted
Links
- 150000001875 compounds Chemical class 0.000 title 1
- 239000000835 fiber Substances 0.000 claims description 36
- 229910052751 metal Inorganic materials 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 21
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims description 19
- 229920005992 thermoplastic resin Polymers 0.000 claims description 16
- 239000000314 lubricant Substances 0.000 claims description 11
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- 150000004665 fatty acids Chemical class 0.000 claims description 5
- 239000000344 soap Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 17
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 239000004020 conductor Substances 0.000 description 5
- 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
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229940037312 stearamide Drugs 0.000 description 2
- 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
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 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
- 150000001408 amides Chemical class 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 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
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- GWOWVOYJLHSRJJ-UHFFFAOYSA-L cadmium stearate Chemical compound [Cd+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O GWOWVOYJLHSRJJ-UHFFFAOYSA-L 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
- ITQVEYJXZXMBTR-UHFFFAOYSA-L cadmium(2+);dodecanoate Chemical compound [Cd+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O ITQVEYJXZXMBTR-UHFFFAOYSA-L 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
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 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
- 230000002301 combined effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 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
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 150000004677 hydrates Chemical class 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
- 239000011777 magnesium Substances 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002074 melt spinning 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
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-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
- 239000002245 particle Substances 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
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- WBHHMMIMDMUBKC-QJWNTBNXSA-M ricinoleate Chemical compound CCCCCC[C@@H](O)C\C=C/CCCCCCCC([O-])=O WBHHMMIMDMUBKC-QJWNTBNXSA-M 0.000 description 1
- 229940066675 ricinoleate Drugs 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 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
- FRKHZXHEZFADLA-UHFFFAOYSA-L strontium;octadecanoate Chemical compound [Sr+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O FRKHZXHEZFADLA-UHFFFAOYSA-L 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 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
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Conductive Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (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 relates to a conductive resin composition used for shielding electromagnetic waves, particularly an electromagnetic wave shielding composition that has a better electromagnetic wave shielding effect than conventional electromagnetic wave shielding compositions. It is related to.
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、ワードプロセッサーなどのハウジングに
前記電子機器の放射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付けられている。In Western countries, housings of electronic devices such as computers, word processors, etc. are often It is mandatory to use equipment that has been treated to shield electromagnetic waves emitted by the equipment.
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性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 appropriate conductivity to the housing that encloses the electronic device. Conventionally, zinc is sprayed onto the inner wall of the housing to form a zinc coating. , a method of imparting electrical conductivity to the housing, and a method of imparting electrical conductivity to the housing by applying a conductive paint to the inside of 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 must be 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傭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。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.
-1 to 10-3 Ω, the amount of conductive material must be increased, resulting in a decrease in strength.On the other hand, when trying to manufacture a housing with sufficient strength, the conductive material 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.
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、チタン酸カリ
ウム・ウィスカーを前記熱可塑性樹脂１００重量部に対
し０．１〜５２重量部添加したことを特徴とするもので
ある。Therefore, the electromagnetic wave shielding composition according to the present invention is characterized in that metal fibers are added to a thermoplastic resin, and 0.1 to 52 parts by weight of potassium titanate whiskers are added to 100 parts by weight of the thermoplastic resin. That is.
さらに本発明による第二の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共に、前記熱可塑性樹
脂１００重量部に対しを前記熱可塑性樹脂１００重量部
に対し０．１〜５２重量部および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。Further, in the second electromagnetic wave shielding composition according to the present invention, metal fibers are added to the thermoplastic resin, and the amount is 0.1 to 52 parts by weight per 100 parts by weight of the thermoplastic resin. and one or more lubricants selected from the group consisting of fatty acid amides and metal soaps.
It is characterized by adding 1 to 2 parts by weight.
本発明によれば、金属繊維とともにチタン酸カリウム・
ウィスカーを適宜量添加しているので、電磁波遮蔽用成
形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, potassium titanate and metal fibers
Since a suitable amount of whiskers is added, there is an advantage that the electromagnetic wave shielding effect can be improved without reducing the strength of the electromagnetic wave shielding molded product.
また、本発明による第二の電磁波遮蔽用組成物によれば
、チタン酸カリウム・ウィスカーとともに、適宜量の滑
剤を添加し、さらに良好な電磁波遮蔽効果を達成できる
とともに、金属繊維のファイバボールの形成を防止でき
るため、前記金属繊維およびチタン酸カリウム・ウィス
カーを均一に分散でき、金属繊維を一度に多量に投入可
能になる。したがって、作業性が著しく向上し、再現性
が向上するという利点がある。Further, according to the second composition for shielding electromagnetic waves according to the present invention, an appropriate amount of lubricant is added together with potassium titanate whiskers, thereby achieving an even better electromagnetic wave shielding effect, and forming fiber balls of metal fibers. Since the metal fibers and the potassium titanate whiskers can be uniformly dispersed, a large amount of the metal fibers can be added at once. Therefore, there are advantages in that workability is significantly improved and 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、Ａｌ３Ｓ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, Al3S 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ｌ７ｉＩＪＩ
Ｉ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＾１−Ｍｇないし＾１−ＣｕなどのＡ１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。さらに完全焼鈍温度の８５〜９５％の焼
鈍温度で不完全に焼鈍された金属繊維（特願昭５９−１
８３３１４号参照）などの一種以上を用いることができ
る。The conductive substance used in the present invention is metal fiber as described above, and the conductive substance used in the present invention is metal fiber.
I fibers are basically not limited. For example, aluminum fibers, stainless steel fibers, copper fibers, lead fibers, tungsten fibers, molybdenum fibers manufactured by chatter vibration cutting, pultrusion, or melt spinning methods, or A1 alloys such as ^1-Mg or ^1-Cu. One or more types of fibers, Cu alloy fibers such as brass, etc. can be effectively used. Furthermore, metal fibers that have been incompletely annealed at an annealing temperature of 85 to 95% of the complete annealing temperature (Patent Application No. 59-1
83314) can be 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Ｉａ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５００本／ｄ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難になる虞を生じ
るからである。また、単位体積あたりの存在本数が５０
０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 of metal Ia fibers, and the number of metal fibers per unit volume is preferably 500 fibers/d 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. . In addition, the number of existing pieces per unit volume is 50
This is because if it is less than 0 lines/d, sufficient conductivity may not be exhibited.
このような組成物にチタン酸カリウム・ウィスカーを熱
可塑性樹脂１００ ｉ置部に対し、０．１〜５２重量部
添加する。Potassium titanate whiskers are added to such a composition in an amount of 0.1 to 52 parts by weight per 100 parts of thermoplastic resin.
このようなチタン酸カリウム・ウィスカーを添加すると
なぜ電磁波遮蔽効果が向上するのか、必ずしも明らかで
はないが、チタン酸カリウム・ウィスカーを添加するこ
とにより金属繊維の酸化被膜形成を抑制すること、また
、チタン酸カリウム・ウィスカーが半導体としての性質
を有していることから、チタン酸カリウム・ウィスカー
それ自身の導通効果、そしてチタン酸カリウム・ウィス
カーを添加することにより樹脂の剛性が向上するため金
属繊維同志の離間を防止できるなどの複合効果のために
電磁波遮蔽効果が向上するものと予想できる。It is not necessarily clear why the addition of such potassium titanate whiskers improves the electromagnetic shielding effect, but it is possible that the addition of potassium titanate whiskers suppresses the formation of an oxide film on metal fibers. Since the potassium titanate whiskers have semiconductor properties, the conductive effect of the potassium titanate whiskers themselves, and the addition of the potassium titanate whiskers improves the rigidity of the resin, making it possible for metal fibers to It can be expected that the electromagnetic wave shielding effect will be improved due to the combined effect of preventing separation.
このようなチタン酸カリウム・ウィスカーは主としてル
チル型酸化物の複合酸化物であり、具体的に化学式を挙
げれば、チタン酸カリウム・ウィスカーはに、Ｏ・ｎ
Ｔｉ０９およびこれらの水和物を指している。Potassium titanate whiskers are mainly composite oxides of rutile type oxides, and the specific chemical formula for potassium titanate whiskers is O.n.
Refers to Ti09 and their hydrates.
このようなチタン酸カリウム・ウィスカーは熱可塑性樹
脂１００重量部に対し、０．１〜５２重量部添加する。Such potassium titanate whiskers are added in an amount of 0.1 to 52 parts by weight per 100 parts by weight of the thermoplastic resin.
チタン酸カリウム・ウィスカーの添加量がｏ、ｉ ｗｉ
ｔ部未満であると、チタン酸カリウム・ウィスカーを添
加した効果が表れず、一方５２重量部を超えて添加して
もそれ以上電磁波遮蔽効果の向上は望めず、また流動性
が悪化するからである。The amount of potassium titanate whiskers added is o, i wi
If the amount is less than t parts, the effect of adding potassium titanate whiskers will not be exhibited, while if it is added in excess of 52 parts by weight, no further improvement in the electromagnetic wave shielding effect can be expected, and the fluidity will deteriorate. be.
最も好ましくは０．５〜１５重量部である。Most preferably it is 0.5 to 15 parts by weight.
このようなチタン酸カリウム・ウィスカーの粒径は好ま
しくは０．１〜１０μｍであり、最も好ましくは、０．
２〜５μｍである。０．１ μｍより小さいと、樹脂に
添加したときの熔融粘度を上昇させるため、金属繊維の
切断などを促進し、添加効果が認め難くなり、また、１
０μｍより大きいと、少量の添加により樹脂強度が低下
し実用性を損なう欠点を生じる可能性がある。The particle size of such potassium titanate whiskers is preferably between 0.1 and 10 μm, most preferably between 0.1 and 10 μm.
It is 2 to 5 μm. If it is smaller than 0.1 μm, it will increase the melt viscosity when added to the resin, promoting cutting of metal fibers, making it difficult to recognize the effect of addition, and
If it is larger than 0 μm, even a small amount added may cause a decrease in resin strength, resulting in a drawback that impairs practicality.
本発明による第二の電磁波遮蔽用組成物にあっては、こ
のような電磁波遮蔽用組成物にさらに、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。In the second composition for shielding electromagnetic waves according to the present invention, one or more lubricants selected from the group consisting of fatty acid amides and metal soaps are further added to the composition for shielding electromagnetic waves.
このような滑剤は、金Ｈ繊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、金属繊維及びチタン酸カリウム・ウィスカ
ー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
。These lubricants are added to ensure that the metal fibers and potassium titanate whiskers are uniformly dispersed in the resin by preventing the gold H fibers from becoming fiber balls, that is, the metal fibers curling into a ball shape. be done. Therefore, a molded article manufactured using the electromagnetic wave shielding composition according to the present invention exhibits a stable electromagnetic wave shielding effect,
It becomes possible to produce an electromagnetic wave shielding composition with good reproducibility.
また、この滑剤を添加することにより金属繊維を一度に
多量に添加可能にするとともに、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。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.
The electromagnetic wave shielding effect can also be improved.
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、バ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ム、ラウリン酸カドミウム、リシ
ノール酸カドミウム、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ウム、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。Examples of such fatty acid amides include one or more of ethylene bisstearamide, oxystearamide, stearamide, and valmitic acid amide, and examples of metal soaps include:
Cadmium stearate, cadmium laurate, cadmium ricinoleate, cadmium naphthenate, cadmium 2-ethylhexoate, barium stearate, barium laurate, barium ricinoleate, barium naphthenate, barium 2-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, magnesium stearate, and the like.
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．
５１Ｍ１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、樹脂成形品に機械強度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.
1 part of 51M is added. This is because if the amount of the lubricant added is less than 0.1 part by weight, there is no effect of adding the lubricant, while if it exceeds 2 parts by weight, there is a risk that the resin molded product will lack mechanical strength.
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３０μ清、長さ２鰭
、アスペクト比６７のＡ１１Ｊｌｉ維を２２容量％（７
２重量部）を添加するとともに、チタン酸カリウムウィ
スカ×２０ ・６ＴｉＯｇ（商品名ティスモーＤ ＝大
塚化学薬品■）を２．５重量部と１０重量部、滑剤とし
て１．４ 重１２部のエチレンビスステアリン酸アミド
を添加した電磁波遮蔽用組成物を製造した。Example 1 To 100 parts by weight of ABS resin, 22% by volume (7%
2 parts by weight), 2.5 parts by weight and 10 parts by weight of 6TiOg (trade name Tismo D = Otsuka Chemical ■), and 1.4 parts by weight and 12 parts by weight of ethylene bis as a lubricant. An electromagnetic shielding composition containing stearamide was produced.
このような電磁波遮蔽用組成物より試験片を製造し、電
磁波遮蔽効果を測定した。測定はタケダ理ｉｔ！ｌの近
接昇竜磁波用シールド材評価器（ＴＲ−１７３０１）と
スペクトルアナライザー（ＴＲ−４１７２＞を併用して
磁界波（ＳＥＩ（） （１００ＭＩＩｚ〜６００ＭＨ
ｚの平均値で示す〕について行った。結果は下記の第１
表に示す。A test piece was produced from such an electromagnetic shielding composition, and the electromagnetic shielding effect was measured. Measurement is done by Takeda Ri! Magnetic field waves (SEI() (100 MIIz ~ 600 MH
(indicated by the average value of z)]. The result is the first one below.
Shown in the table.
第１表
〔発明の効果〕
以上説明したように、本発明による電磁波遮蔽効果物は
、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、滑剤を併用することによ
り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Table 1 [Effects of the Invention] As explained above, the electromagnetic wave shielding product according to the present invention can produce an electromagnetic wave shielding product that has a good electromagnetic wave shielding effect, and can also be used in combination with a lubricant to improve workability. It has the advantage that it is also possible to manufacture compositions for shielding electromagnetic waves.
Claims (2)
タン酸カリウム・ウィスカーを前記熱可塑性樹脂１００
重量部に対し０．１〜５２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) Adding metal fibers to the thermoplastic resin and adding potassium titanate whiskers to the thermoplastic resin 100
An electromagnetic wave shielding composition characterized in that 0.1 to 52 parts by weight of the composition is added.
記熱可塑性樹脂１００重量部に対しチタン酸カリウム・
ウィスカーを０．１〜５２重量部、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。(2) Adding metal fibers to the thermoplastic resin, and adding potassium titanate to 100 parts by weight of the thermoplastic resin.
0.1 to 52 parts by weight of whiskers, 0 or more lubricants selected from the group consisting of fatty acid amides and metal soaps.
．． 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 |
|---|---|---|---|
| JP25389787A JPS63211698A (en) | 1987-10-09 | 1987-10-09 | Electromagnetic shielding compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25389787A JPS63211698A (en) | 1987-10-09 | 1987-10-09 | Electromagnetic shielding compound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63211698A true JPS63211698A (en) | 1988-09-02 |
| JPH0249040B2 JPH0249040B2 (en) | 1990-10-26 |
Family
ID=17257609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25389787A Granted JPS63211698A (en) | 1987-10-09 | 1987-10-09 | Electromagnetic shielding compound |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63211698A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02135247A (en) * | 1988-11-16 | 1990-05-24 | Ube Cycon Ltd | Thermoplastic resin composition |
| WO1990016143A1 (en) * | 1989-06-12 | 1990-12-27 | Otsuka Kagaku Kabushiki Kaisha | Electrostatic shielding film or sheet |
| JPH03289004A (en) * | 1990-04-04 | 1991-12-19 | Matsushita Electric Ind Co Ltd | Conductive resin composite |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101627599B1 (en) * | 2014-11-04 | 2016-06-13 | (주)이룸텍 | Sunvisor having rotatable mirror |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5068249A (en) * | 1973-10-17 | 1975-06-07 | ||
| JPS5418381A (en) * | 1977-07-09 | 1979-02-10 | Touto Giken Kk | Method and device for folding paper box |
| JPS5889645A (en) * | 1981-11-24 | 1983-05-28 | Toray Ind Inc | Thermoplastic polyester composition |
| JPS5889647A (en) * | 1981-11-24 | 1983-05-28 | Toray Ind Inc | Preparation of thermoplastic polyester composition |
| JPS59115357A (en) * | 1982-12-23 | 1984-07-03 | Dainichi Seika Kogyo Kk | Electrically conductive resin composition |
-
1987
- 1987-10-09 JP JP25389787A patent/JPS63211698A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5068249A (en) * | 1973-10-17 | 1975-06-07 | ||
| JPS5418381A (en) * | 1977-07-09 | 1979-02-10 | Touto Giken Kk | Method and device for folding paper box |
| JPS5889645A (en) * | 1981-11-24 | 1983-05-28 | Toray Ind Inc | Thermoplastic polyester composition |
| JPS5889647A (en) * | 1981-11-24 | 1983-05-28 | Toray Ind Inc | Preparation of thermoplastic polyester composition |
| JPS59115357A (en) * | 1982-12-23 | 1984-07-03 | Dainichi Seika Kogyo Kk | Electrically conductive resin composition |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02135247A (en) * | 1988-11-16 | 1990-05-24 | Ube Cycon Ltd | Thermoplastic resin composition |
| WO1990016143A1 (en) * | 1989-06-12 | 1990-12-27 | Otsuka Kagaku Kabushiki Kaisha | Electrostatic shielding film or sheet |
| JPH03289004A (en) * | 1990-04-04 | 1991-12-19 | Matsushita Electric Ind Co Ltd | Conductive resin composite |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0249040B2 (en) | 1990-10-26 |
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