JPH0465014A - Conductor and manufacture thereof - Google Patents
Conductor and manufacture thereofInfo
- Publication number
- JPH0465014A JPH0465014A JP2176802A JP17680290A JPH0465014A JP H0465014 A JPH0465014 A JP H0465014A JP 2176802 A JP2176802 A JP 2176802A JP 17680290 A JP17680290 A JP 17680290A JP H0465014 A JPH0465014 A JP H0465014A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- carbon black
- thickness direction
- magnetic carbon
- magnetic
- 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
Landscapes
- Conductive Materials (AREA)
- Moulding By Coating Moulds (AREA)
- Compositions Of Macromolecular Compounds (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】
〔産業上の利用分野〕
本発明は、コネクター、オフィスオートメーション機器
用の機能性ロール等に用いられる導電体およびその製法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a conductor used for connectors, functional rolls for office automation equipment, etc., and a method for manufacturing the same.
−ａに、カーボンブラック、導電性金属酸化物等の導電
性材料を多量に含有した樹脂材料を、ロール、カレンダ
ーあるいは押出機等の機械的手段を使用して分出しまた
は押出しすることにより、その分出しまたは押出し方向
に上記導電性材料を配向化させた導電体、例えば導電性
ロールが作製される。このような導電体では、いずれも
、マトリックス樹脂６中の導電性材料５が、第２図に示
すように、得られる導電体４の分出し方向（Ｘ方向）に
配向するため、分出し方向には高い導電性が付与される
が、逆に厚み方向（Ｙ方向）には導電性が付与されず絶
縁性が保持される。-a, by dispensing or extruding a resin material containing a large amount of conductive material such as carbon black or conductive metal oxide using a mechanical means such as a roll, a calendar, or an extruder; A conductor, for example a conductive roll, is produced by oriented the conductive material in the dispensing or extrusion direction. In all such conductors, the conductive material 5 in the matrix resin 6 is oriented in the dispensing direction (X direction) of the resulting conductor 4, as shown in FIG. High conductivity is imparted to the layer, but conversely, conductivity is not imparted in the thickness direction (Y direction) and insulation is maintained.
このように、従来の導電体４では、厚み方向に高い導電
性を有するものが得られていないのが実情である。As described above, the reality is that conventional conductors 4 have not been able to have high conductivity in the thickness direction.
本発明は、このような事情に鑑みなされたもので、厚み
方向に高い導電性を有する導電体およびその製法の提供
をその目的とする。The present invention was made in view of the above circumstances, and an object thereof is to provide a conductor having high conductivity in the thickness direction and a method for manufacturing the same.
本発明は、マトリックス樹脂中に磁性カーボンブラック
が分布している導電体であって、上記磁性カーボンブラ
ックが厚み方向に配向されている導電体を第１の要旨と
し、マトリックス樹脂と、磁性カーボンブラックとが含
有されている成形材料を成形機にかけ、所定形状に成形
し、この成形品の軟質状態時に、厚み方向に磁場を発生
させて上記磁性カーボンブラックを厚み方向に配向させ
、その状態で成形品を固化させる導電体の製法を第２の
要旨とする。The first aspect of the present invention is a conductor in which magnetic carbon black is distributed in a matrix resin, and the magnetic carbon black is oriented in the thickness direction. A molding material containing carbon black is applied to a molding machine and molded into a predetermined shape, and when the molded product is in a soft state, a magnetic field is generated in the thickness direction to orient the magnetic carbon black in the thickness direction, and molded in that state. The second gist is the manufacturing method of the conductor that solidifies the product.
すなわち、本発明は、導電性材料として磁性カーボンブ
ラックを用い、これを加えたマトリックス樹脂の軟質状
態時に、厚み方向に磁場を発生させて磁性カーボンブラ
ックを厚み方向に配向させることにより機能性ロール等
の導電体を作製する。したがって、このようにして得ら
れる導電体は、厚み方向（ロールでは径方向）に高い導
電性を有し、しかも押出し・分出し方向（ロールでは軸
方向）には絶縁性が保持される。That is, the present invention uses magnetic carbon black as a conductive material, and generates a magnetic field in the thickness direction when the matrix resin containing the magnetic carbon black is in a soft state to orient the magnetic carbon black in the thickness direction. Create a conductor. Therefore, the conductor obtained in this manner has high conductivity in the thickness direction (radial direction in the case of a roll) and maintains insulation in the extrusion/dispensing direction (in the axial direction in the case of a roll).
本発明の導電体は、マトリックス樹脂と、磁性カーボン
ブラックとを用いて得られる。The conductor of the present invention is obtained using a matrix resin and magnetic carbon black.
上記マトリックス樹脂としては、天然ゴム、スチレン−
ブタジェンゴム等の合成ゴム、熱可塑性樹脂および熱硬
化性樹脂等があげられる。The above matrix resins include natural rubber, styrene, etc.
Examples include synthetic rubbers such as butadiene rubber, thermoplastic resins, and thermosetting resins.
上記磁性カーボンブラックは、磁性金属微粒子をカーボ
ンプラック粒子に捕捉させ安定に固定化したものである
。The above-mentioned magnetic carbon black is obtained by stably fixing magnetic metal fine particles captured by carbon plaque particles.
上記磁性カーボンブラックの配合割合は、マトリックス
樹脂１００重量部（以下「部」と略す）に対して１０〜
８０部の範囲内に設定するのが好ましい。The blending ratio of the magnetic carbon black is 10 to 100 parts by weight (hereinafter referred to as "parts") of the matrix resin.
It is preferable to set it within the range of 80 parts.
なお、本発明の導電体の製造原料には、上記原料以外に
、可塑剤、充填剤、加硫剤等の他の添加剤が必要に応じ
て適宜配合される。In addition to the above-mentioned raw materials, other additives such as plasticizers, fillers, and vulcanizing agents may be appropriately blended into the raw materials for producing the conductor of the present invention, as necessary.
本発明の導電体は、上記原料を用いて例えばっぎのよう
にして製造することができる。すなわち、上記マトリッ
クス樹脂、磁性カーボンブラックおよび必要に応じて他
の添加剤を適宜配合し混練して成形材料を作製する。つ
ぎに、この成形材料を押出成形機に投入し、導電体が機
能性ロールのときには、回転軸の外周に成形材料を押出
成形して、成形品が軟質状態のときに、その厚み方向（
径方向）に、磁場発生装置により起磁力をがけ、磁性カ
ーボンブラックを厚み方向に配向させ、その状態で冷却
固化（硬化も含む）することが行われる。導電体がシー
ト状材のときには、押出成形機を用い、シート状に押出
成形する。そして、押し出されたシートを所定の長さに
スライスし、軟質状態のときに、上記装置を用い厚み方
向に磁場を発生させる。ついで、冷却固化させる。この
ようにして導電体が製造される。The conductor of the present invention can be manufactured using the above raw materials, for example, as described above. That is, the matrix resin, magnetic carbon black, and other additives as required are appropriately blended and kneaded to prepare a molding material. Next, this molding material is put into an extrusion molding machine, and when the conductor is a functional roll, the molding material is extruded around the outer periphery of the rotating shaft, and when the molded product is in a soft state, the molding material is extruded in the thickness direction (
A magnetic field generator applies a magnetomotive force in the radial direction) to orient the magnetic carbon black in the thickness direction, and in this state, it is cooled and solidified (including hardening). When the conductor is a sheet material, it is extruded into a sheet using an extrusion molding machine. Then, the extruded sheet is sliced into predetermined lengths, and when it is in a soft state, a magnetic field is generated in the thickness direction using the above device. Then, it is cooled and solidified. A conductor is manufactured in this way.
このようにして得られる導電体は、例えばそれがシート
体の場合は、第１図に示すように、マトリックス樹脂２
中に、磁性カーボンブラック３が、導電体１の厚み方向
（Ｐ方向）に配向している。そのため、このシート材１
は、厚み方向に高い導電性を有し、押出し方向（Ｑ方向
）には絶縁性を有している。For example, when the conductor obtained in this way is in the form of a sheet, as shown in FIG.
Inside, magnetic carbon black 3 is oriented in the thickness direction (P direction) of the conductor 1. Therefore, this sheet material 1
has high conductivity in the thickness direction and insulation in the extrusion direction (Q direction).
以上のように、本発明は、マトリックス樹脂と、磁性カ
ーボンブラックを含有する成形材料を用い、これを成形
し、この成形品が軟質状態時に厚み方向に磁場を発生さ
せて、磁性カーボンブラックを厚み方向に配向させるこ
とにより導電体を作製する。このため、得られる導電体
は、マトリックス樹脂中に、上記磁性カーボンブラック
が、厚み方向に配向している。したがって、上記導電体
は、厚み方向に高い導電性を有し、押出し・分出し方向
には絶縁性を有するという特異な特性を有するようにな
り、コネクタ、機能性ロール等として極めて有用になる
。As described above, the present invention uses a molding material containing a matrix resin and magnetic carbon black, molds it, and generates a magnetic field in the thickness direction when the molded product is in a soft state to increase the thickness of the magnetic carbon black. A conductor is produced by orienting it in the direction. Therefore, in the obtained conductor, the magnetic carbon black is oriented in the thickness direction in the matrix resin. Therefore, the conductor has unique characteristics of having high conductivity in the thickness direction and insulating property in the extrusion/dispensing direction, making it extremely useful as connectors, functional rolls, etc.
つぎに、実施例について比較例と併せて説明する。Next, examples will be described together with comparative examples.
〔実施例１〜３〕
下記の第１表に示す各原料を同表に示す割合で配合し混
練して導電体成形材料を作製し、これをロールにより分
出しすることによりシート成形用弾性体を得た。つぎに
、これの軟質状態時に磁場発生装置より起磁力（１２０
００アンペア・タ−ン）をかけて、加硫させることによ
り導電性シートを作製した。[Examples 1 to 3] Each of the raw materials shown in Table 1 below was blended and kneaded in the proportions shown in the same table to produce a conductor molding material, and this was distributed with a roll to produce an elastic body for sheet molding. I got it. Next, when it is in a soft state, a magnetomotive force (120
A conductive sheet was prepared by applying 00 ampere turns) and vulcanizing it.
〔比較例１〜３］
磁性カーボンブラックの代わりにアセチレンブラックを
用い磁場を発生させなかった。それ以外は実施例１と同
様にして導電性シートを作製した。[Comparative Examples 1 to 3] Acetylene black was used instead of magnetic carbon black, and no magnetic field was generated. A conductive sheet was produced in the same manner as in Example 1 except for the above.
（以下余白）
以上のようにして作製された実施別品および比較別品を
用いて、それぞれの分出し方向およびシートの厚み方向
における体積固有抵抗を測定した。その結果を第３図に
示した。図において、曲線Ａは実施別品におけるシート
の厚み方向の磁性カーボンブラック添加量と体積固有抵
抗の関係を、曲線Ｂは実施別品における分出し方向の上
記関係を示す。また、曲線Ｃは比較別品における分出し
方向のアセチレンブラック添加量と体積固有抵抗の関係
を示し、曲線りは比較別品におけるシートの厚み方向の
上記関係を示す。(Hereinafter, blank space) Using the experimental product and the comparative product produced as described above, the volume resistivity in the dispensing direction and the thickness direction of the sheet was measured. The results are shown in Figure 3. In the figure, curve A shows the relationship between the added amount of magnetic carbon black in the thickness direction of the sheet and the volume resistivity in different products, and curve B shows the above relationship in the distribution direction in different products. Further, the curve C shows the relationship between the amount of acetylene black added and the volume resistivity in the dispensing direction in the comparative product, and the curve shows the above-mentioned relationship in the sheet thickness direction in the comparative product.
そして、第３図の結果から、比較別品は、シートの厚み
方向に絶縁性を有し、分出し方向に導電性を有するもの
である。これに対し、実施別品は、分出し方向において
、絶縁性を有し、逆に厚み方向において高い導電性を有
しているのがわかる。From the results shown in FIG. 3, the comparative product has insulation properties in the thickness direction of the sheet and conductivity in the dispensing direction. On the other hand, it can be seen that the practical product has insulation properties in the dispensing direction, and conversely, high conductivity in the thickness direction.
第１図は本発明の導電体中の磁性カーボンブラックの配
向状態を示す模式図、第２図は従来品の導電体中の導電
性材料の配向状態を示す模式図、第３図は磁性カーボン
ブラックまたはアセチレンブラックの添加量と体積固有
抵抗の関係を示す曲線図である。
１・・・導電体 ２・・・マトリックス樹脂 ３・・・
磁性カーボンブラック
特許出願人 東海ゴム工業株式会社
代理人 弁理士 西 藤 征 彦Fig. 1 is a schematic diagram showing the orientation state of magnetic carbon black in the conductor of the present invention, Fig. 2 is a schematic diagram showing the orientation state of the conductive material in the conductor of the conventional product, and Fig. 3 is a schematic diagram showing the orientation state of the magnetic carbon black in the conductor of the present invention. FIG. 2 is a curve diagram showing the relationship between the amount of black or acetylene black added and volume resistivity. 1... Conductor 2... Matrix resin 3...
Magnetic carbon black patent applicant Tokai Rubber Industries Co., Ltd. Representative Patent attorney Yukihiko Nishifuji
Claims (2)
布している導電体であつて、上記磁性カーボンブラツク
が厚み方向に配向されていることを特徴とする導電体。(1) A conductor comprising magnetic carbon black distributed in a matrix resin, characterized in that the magnetic carbon black is oriented in the thickness direction.
含有されている成形材料を成形機にかけ、所定形状に成
形し、この成形品の軟質状態時に、厚み方向に磁場を発
生させて上記磁性カーボンブラツクを厚み方向に配向さ
せ、その状態で成形品を固化させることを特徴とする導
電体の製法。(2) A molding material containing matrix resin and magnetic carbon black is applied to a molding machine, molded into a predetermined shape, and when the molded product is in a soft state, a magnetic field is generated in the thickness direction to form the magnetic carbon black. A method for manufacturing a conductor, which is characterized by oriented in the thickness direction and solidifying the molded product in that state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2176802A JPH0465014A (en) | 1990-07-03 | 1990-07-03 | Conductor and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2176802A JPH0465014A (en) | 1990-07-03 | 1990-07-03 | Conductor and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0465014A true JPH0465014A (en) | 1992-03-02 |
Family
ID=16020099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2176802A Pending JPH0465014A (en) | 1990-07-03 | 1990-07-03 | Conductor and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0465014A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008179674A (en) * | 2007-01-23 | 2008-08-07 | Sumitomo Rubber Ind Ltd | Rubber composition for tire tread and pneumatic tire using the same |
-
1990
- 1990-07-03 JP JP2176802A patent/JPH0465014A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008179674A (en) * | 2007-01-23 | 2008-08-07 | Sumitomo Rubber Ind Ltd | Rubber composition for tire tread and pneumatic tire using the same |
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