JPH0725933B2 - Metallized coke powder - Google Patents
Metallized coke powderInfo
- Publication number
- JPH0725933B2 JPH0725933B2 JP32403488A JP32403488A JPH0725933B2 JP H0725933 B2 JPH0725933 B2 JP H0725933B2 JP 32403488 A JP32403488 A JP 32403488A JP 32403488 A JP32403488 A JP 32403488A JP H0725933 B2 JPH0725933 B2 JP H0725933B2
- Authority
- JP
- Japan
- Prior art keywords
- coke powder
- metallized
- washed
- coke
- graphite
- 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.)
- Expired - Fee Related
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 47
- 239000002245 particle Substances 0.000 claims description 27
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 15
- 229910052802 copper Inorganic materials 0.000 description 15
- 239000010949 copper Substances 0.000 description 15
- 239000011347 resin Substances 0.000 description 14
- 229920005989 resin Polymers 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 229910002804 graphite Inorganic materials 0.000 description 12
- 239000010439 graphite Substances 0.000 description 12
- 238000007747 plating Methods 0.000 description 12
- 229910052759 nickel Inorganic materials 0.000 description 11
- 239000000126 substance Substances 0.000 description 10
- 239000000571 coke Substances 0.000 description 9
- 239000011231 conductive filler Substances 0.000 description 9
- 230000005484 gravity Effects 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- 238000007772 electroless plating Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 description 4
- 229910021626 Tin(II) chloride Inorganic materials 0.000 description 4
- 239000012190 activator Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000001119 stannous chloride Substances 0.000 description 4
- 235000011150 stannous chloride Nutrition 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000006072 paste Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
- Conductive Materials (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、例えば導電性樹脂材料（塗料，ペースト，接
着剤，プラスチックフィルム等）の導電性フィラーとし
て有用な金属化コークス粉末に関するものである。TECHNICAL FIELD The present invention relates to a metallized coke powder useful as a conductive filler for, for example, a conductive resin material (paint, paste, adhesive, plastic film, etc.). .
近年、各種導電性樹脂の導電性フィラーとしてニッケ
ル，銀，銅等の金属微粒子やグラファイト等のカーボン
微粒子が用いられている。In recent years, fine particles of metal such as nickel, silver and copper and fine particles of carbon such as graphite have been used as conductive fillers for various conductive resins.
導電性フィラーとしてニッケル，銀，銅，カーボンなど
が用いられた導電性樹脂の一例を掲げ、その体積固有抵
抗を例示してみると次表のようになる。The following table shows an example of a conductive resin in which nickel, silver, copper, carbon, etc. are used as the conductive filler and its volume resistivity is illustrated.
〔発明が解決しようとする課題〕 導電性樹脂としては、体積固有抵抗が小さく、しかもイ
ニシャルコストの低いものが望まれ、その為には導電性
フィラーが重要となるが、これら両方の利点を備えた導
電性フィラーの提供は極めて困難である。 [Problems to be Solved by the Invention] As the conductive resin, a resin having a small volume resistivity and a low initial cost is desired, and therefore a conductive filler is important, but it has advantages of both of them. It is extremely difficult to provide a conductive filler.
例えば、グラファイト等のカーボン粒子だけを導電性フ
ィラーに使用すれば、銀粉等に比較して価格は安くなる
が、体積固有抵抗が銀粉の場合の約２〜20×104倍とな
る。For example, if only carbon particles such as graphite are used for the conductive filler, the price is lower than that of silver powder, but the volume resistivity is about 2 to 20 × 10 4 times that of silver powder.
この為グラファイト粒子の表面にメッキすることが試み
られているが、グラファイトの摩擦係数は約0.2と小さ
く微粉砕するのが困難である。Therefore, it has been attempted to plate the surface of the graphite particles, but the friction coefficient of graphite is about 0.2 and it is difficult to pulverize it.
本発明者等は、上記問題に鑑み、グラファイトにかえて
コークスを使用することができないか否かを検討するた
め、グラファイトとコークスとの粉末粒子の形状の比較
確認を始めとして、電気抵抗の比較確認等の基礎的研究
を進めた。In view of the above problems, the inventors of the present invention, in order to investigate whether coke cannot be used in place of graphite, in order to examine the comparison of the shape of the powder particles of graphite and coke, comparison of electrical resistance We proceeded with basic research such as confirmation.
その結果、コークスはグラファイトに比較して単に材料
価格が安く、粉末化が容易なだけでなく、粉末粒子の形
状や粒度の均一性（粒子径の分布の範囲が狭い），比
重，電気抵抗値等々からいってもグラファイト以上に導
電性フィラーとして有望であるとの知見を得、更に研究
の結果本発明に到達したものである。As a result, coke is not only cheaper in material price than graphite and is easily powdered, but also the shape and uniformity of powder particles (narrow particle size distribution range), specific gravity, and electrical resistance value. From the facts mentioned above, it was found that the conductive filler is more promising than graphite, and further research has led to the present invention.
即ち本発明は、原材料として前述した従来のグラファイ
トにかえてコークスを用い、これを粒子直径100μｍ以
下に微粉砕し、さらに粒子の表面を金属化した金属化コ
ークス粉末を提供するものである。That is, the present invention provides a metalized coke powder in which coke is used as a raw material instead of the above-mentioned conventional graphite, the coke is finely pulverized to have a particle diameter of 100 μm or less, and the surface of the particle is metallized.
本発明で原材料として用いるコークスは、材料価格自体
がグラファイトより安く、また摩擦係数が大きい為その
微粉砕が容易であるという利点を有しているが、グラフ
ァイトに比較して更に重要な利点は、次の通りである。The coke used as a raw material in the present invention has the advantage that the material price itself is cheaper than graphite and that it is easy to finely pulverize it because it has a large friction coefficient, but a more important advantage compared to graphite is that It is as follows.
即ち、グラファイト粉末粒子は、その粒子形状が鱗片状
に近く、また、粒度・形状も不揃いで均一性に欠けたも
のとして得られるが、コークス粉末は、その形状が球状
に近く、篩わけのような簡単な操作を施すのみで、粒度
・形状ともに驚くほどばらつきのないものとして得ら
れ、しかも粒子表面には微細な凹凸があるという点であ
る。That is, the graphite powder particles are obtained as particles having a scaly particle shape and inconsistent particle sizes and shapes, and lacking uniformity, but the coke powder has a shape close to a sphere and is likely to be sieved. By simply performing a simple operation, the particle size and shape can be obtained with surprisingly no variation, and the particle surface has fine irregularities.
この点更に具体的に述べれば、本発明の金属化コークス
粉末は、均一に金属で被覆されたものとして得易いだけ
でなく、これを樹脂等に分散して用いる場合には、粒径
を適当に選定することにより均一な厚みの樹脂膜となし
易く、更にまた導電性樹脂としての応用に際しても膜
面，膜厚のいずれの方向へも導電性が良好な導電性樹脂
として設計が可能となる。More specifically, in this respect, the metallized coke powder of the present invention is not only easy to obtain as one uniformly coated with metal, but when it is used by dispersing it in a resin or the like, the particle size is appropriate. It is easy to form a resin film with a uniform thickness by selecting, and it is possible to design as a conductive resin that has good conductivity in both the film surface and film thickness directions when applied as a conductive resin. .
本発明で、直径100μｍ以下に微粉砕したコークス粉末
を用いることとしたのも、上記の作用を期待できる範囲
のものとするためであり、導電性樹脂用の導電性フィラ
ーとして用いる場合には望ましくは直径20μｍ以下に微
粉砕したコークス粉末が良い。尚、コークスを微粉砕す
るにあたっては特殊な方法を用いる必要はなく、例えば
振動ミル，ボールミル，ロール転動ミル，高速回転式粉
砕機，ジェットミル，擂潰機等を利用する常法によれば
よい。In the present invention, the reason why the coke powder finely pulverized to have a diameter of 100 μm or less is used is because it is within the range in which the above effects can be expected, and it is desirable to use it as a conductive filler for a conductive resin. Is finely crushed coke powder with a diameter of 20 μm or less. Incidentally, it is not necessary to use a special method for finely crushing the coke. For example, according to a conventional method using a vibration mill, a ball mill, a roll rolling mill, a high speed rotary crusher, a jet mill, a crusher, etc. Good.
以下、本発明を実施例，比較例等によって更に具体的に
説明する。Hereinafter, the present invention will be described more specifically with reference to Examples and Comparative Examples.
実施例１ 平均粒子径8.81μm,比表面積0.76m2/g,真比重1.99,電気
抵抗率（JISK1469）4.5×10-1Ω−cmのコークス粉末を
用いて銅無電解メッキを下記方法によりおこなった。Example 1 Copper electroless plating was performed by the following method using coke powder having an average particle diameter of 8.81 μm, a specific surface area of 0.76 m 2 / g, a true specific gravity of 1.99, and an electrical resistivity (JIS K1469) of 4.5 × 10 −1 Ω-cm. It was
コークス粉末0.8gをカチオン性界面活性剤であるデスケ
ルＸ−100（奥野製薬工業製）10％溶液100mlに15分間浸
漬後ろ別水洗し、次に触媒付与と触媒活性をするため塩
化第一スズを含有したセンシタイザー（奥野製薬工業
製）10％溶液500mlに15分間浸漬後ろ別水洗し、さらに
塩化パラジウムを含有したアクチベーター（奥野製薬工
業製）５％溶液500mlに15分間浸漬後ろ別水洗した。そ
して化学銅ニュー＃100（奥野製薬工業製銅無電解メッ
キ液）16％溶液３中に２時間浸漬させた。0.8 g of coke powder is immersed in 100 ml of 10% solution of Desquel X-100 (Okuno Pharmaceutical Co., Ltd.), which is a cationic surfactant, for 15 minutes, then washed separately with water, and then stannous chloride is added for catalyst addition and catalytic activity. It was dipped in 500 ml of a 10% solution containing sensitizer (Okuno Pharmaceutical Co., Ltd.) for 15 minutes and then washed with another water, and further dipped in 500 ml of 5% activator containing palladium chloride (Okuno Pharmaceutical Co., Ltd.) for 15 minutes and then washed with another water. Then, it was dipped in a 16% solution 3 of chemical copper new # 100 (copper electroless plating solution manufactured by Okuno Chemical Industries Co., Ltd.) for 2 hours.
以上の如く銅メッキして得た金属化コークス粉末を、ろ
別水洗しメタノール洗浄及びアセトン洗浄し自然乾燥さ
せた。The metallized coke powder obtained by plating with copper as described above was filtered, washed with water, washed with methanol and washed with acetone, and naturally dried.
上記で得た金属化コークス粉末のメッキ厚さは顕微鏡断
面写真により約５μｍであることを確認した。また、電
気抵抗率（JISK1469）は1.8×10-3Ω−cm,真比重（JISZ
8807）は4.89であった。The plating thickness of the metallized coke powder obtained above was confirmed to be about 5 μm by a microscopic cross-sectional photograph. The electrical resistivity (JISK1469) is 1.8 × 10 -3 Ω-cm, the true specific gravity (JISZ
8807) was 4.89.
比較例１ 平均粒子径11.15μm,比表面積0.75m2/g,真比重2.26,電
気抵抗率（JISK1469）1.2×10-1Ω−cmの日本カーボン
（株）製天然黒鉛粉末Ｒ−１ 325メッシュ以下を用い
て下記の方法により銅の無電解メッキをした。Comparative Example 1 Average particle size 11.15 μm, specific surface area 0.75 m 2 / g, true specific gravity 2.26, electrical resistivity (JIS K1469) 1.2 × 10 −1 Ω-cm natural carbon powder R-1 325 mesh manufactured by Nippon Carbon Co., Ltd. Copper was electrolessly plated by the following method using the following.
黒鉛粉末0.8gをデスケルＸ−100（奥野製薬工業製）10
％溶液100mlに15分間浸漬後ろ別水洗した。次に触媒付
与と触媒活性化をするため塩化第一スズを含有したセン
シタイザー（奥野製薬工業製）10％溶液500mlに15分間
浸漬後ろ別水洗し、塩化パラジウムを含有するアクチベ
ーター（奥野製薬工業製）５％溶液500mlに15分間浸漬
後ろ別水洗した。そして銅無電解メッキをするため、硫
酸銅，ホルマリン，水酸化ナトリウムを含有する銅無電
解メッキ液である化学銅ニュー＃100（奥野製薬工業
製）16％溶液３に１時間浸漬した。得られた銅メッキ
黒鉛粉末は、ろ別水洗し、メタノール洗浄及びアセトン
洗浄し自然乾燥させた。Deskel X-100 (Okuno Pharmaceutical Co., Ltd.) 10 g of graphite powder 0.8 g
It was soaked in 100 ml of 100% solution for 15 minutes and then washed with another water. Next, in order to apply and activate the catalyst, it is immersed in 500 ml of a 10% solution of sensitizer containing stannous chloride (Okuno Pharmaceutical Co., Ltd.) for 15 minutes and then washed separately with water and an activator containing palladium chloride (Okuno Pharmaceutical Co., Ltd. It was immersed in 500 ml of a 5% solution for 15 minutes and then washed separately with water. Then, in order to perform copper electroless plating, it was immersed for 1 hour in a chemical copper new # 100 (made by Okuno Chemical Industries Co., Ltd.) 16% solution 3 which is a copper electroless plating solution containing copper sulfate, formalin and sodium hydroxide. The obtained copper-plated graphite powder was filtered, washed with water, washed with methanol and washed with acetone, and naturally dried.
上記で得た粉末のメッキ厚さは顕微鏡断面写真により約
２μｍであることを確認した。また、電気抵抗率（JISK
1469）は3.3×10-3Ω−cmで、真比重（JISZ8807）は5.8
3であった。The plating thickness of the powder obtained above was confirmed to be about 2 μm by a microscopic cross-sectional photograph. In addition, electrical resistivity (JISK
1469) is 3.3 × 10 -3 Ω-cm, and true specific gravity (JISZ8807) is 5.8.
Was 3.
実施例２ 平均粒子径8.81μｍのコークス粉末を用いて銅無電解メ
ッキを下記方法によりおこなった。Example 2 Copper electroless plating was performed by the following method using coke powder having an average particle diameter of 8.81 μm.
コークス粉末1gをデスケルＸ−100（奥野製薬工業製）1
0％溶液100mlに15分間浸漬後ろ別水洗し、次に触媒付与
と触媒活性化をするため塩化第一スズを含有したセンシ
タイザー（奥野製薬工業製）10％溶液500mlに15分間浸
漬後ろ別水洗し、さらに塩化パラジウムを含有したアク
チベーター（奥野製薬工業製）５％溶液500mlに15分間
浸漬後ろ別水洗した。そして、化学銅ニュー＃100（奥
野製薬工業製 銅無電解メッキ液）16％溶液１中に１
時間浸漬させた。Deskell X-100 (made by Okuno Chemical Industries) 1 g of coke powder 1
Immerse in 100 ml of 0% solution for 15 minutes, then rinse with water separately, and then dip in sensitizer containing stannous chloride (Okuno Pharmaceutical Co., Ltd.) for 10 minutes to apply and activate the catalyst. Then, it was further immersed in 500 ml of a 5% solution of an activator (manufactured by Okuno Chemical Industries Co.) containing palladium chloride for 15 minutes and then washed with another water. And 1 in 1 of 16% solution of Chemical Copper New # 100 (Okuno Pharmaceutical Co., Ltd. copper electroless plating solution)
Let it soak for an hour.
以上の如く銅メッキして得た金属化コークス粉末を、ろ
別水洗しメタノール洗浄及びアセトン洗浄し自然乾燥さ
せた。The metallized coke powder obtained by plating with copper as described above was filtered, washed with water, washed with methanol and washed with acetone, and naturally dried.
上記で得た金属化コークス粉末のメッキ厚さは顕微鏡断
面写真より約２μｍであることを確認した。また、電気
抵抗率（JISK1469）は7.6×10-4Ω−cm,真比重（JISZ88
07）は4.38であった。It was confirmed from the microscopic cross-sectional photograph that the plating thickness of the metallized coke powder obtained above was about 2 μm. The electrical resistivity (JISK1469) is 7.6 × 10 -4 Ω-cm, and the true specific gravity (JISZ88).
07) was 4.38.
実施例３ 平均粒子径8.81μｍのコークス粉末を用いて、ニッケル
無電解メッキを下記方法によりおこなった。Example 3 Nickel electroless plating was performed by the following method using coke powder having an average particle diameter of 8.81 μm.
コークス粉末1gをデスケルＸ−100（奥野製薬工業製）1
0％溶液100mlに15分間浸漬後ろ別水洗し、次に触媒付与
と触媒活性化をするため塩化第一スズを含有したセンシ
タイザー（奥野製薬工業製）10％溶液500mlに15分間浸
漬後ろ別水洗し、さらに塩化パラジウムを含有したアク
チベーター（奥野製薬工業製）５％溶液500mlに15分間
浸漬後ろ別水洗した。そして、TMP化学ニッケル（奥野
製薬工業製 ニッケル無電解メッキ液）14％溶液１に
10分間浸漬させた。以上の如くニッケルメッキして得た
金属化コークス粉末をろ別水洗し、メタノール洗浄及び
アセトン洗浄し、自然乾燥させた。Deskell X-100 (made by Okuno Chemical Industries) 1 g of coke powder 1
Immerse in 100 ml of 0% solution for 15 minutes, then rinse with water separately, and then dip in sensitizer containing stannous chloride (Okuno Pharmaceutical Co., Ltd.) for 10 minutes to apply and activate the catalyst. Then, it was further immersed in 500 ml of a 5% solution of an activator (manufactured by Okuno Chemical Industries Co.) containing palladium chloride for 15 minutes and then washed with another water. And, to TMP chemical nickel (Okuno Pharmaceutical Co., Ltd. nickel electroless plating solution) 14% solution 1
It was immersed for 10 minutes. The metallized coke powder obtained by nickel plating as described above was filtered, washed with water, washed with methanol and washed with acetone, and naturally dried.
上記で得た金属化コークス粉末のメッキ厚さは顕微鏡断
面写真より約２μｍであることを確認した。また、電気
抵抗率（JISK1469）は4.6×10-2Ω−cm,真比重（JISZ88
07）は2.64であった。It was confirmed from the microscopic cross-sectional photograph that the plating thickness of the metallized coke powder obtained above was about 2 μm. The electrical resistivity (JISK1469) is 4.6 × 10 -2 Ω-cm, and the true specific gravity (JISZ88)
07) was 2.64.
参考例１ 実施例１で出発材料として用いたコークス粉末そのもの
の電気抵抗率及び真比重を測定した。Reference Example 1 The electrical resistivity and true specific gravity of the coke powder itself used as the starting material in Example 1 were measured.
その結果は、前者が4.5×10-1Ω−cmであり、後者が1.9
9であった。The result is 4.5 × 10 -1 Ω-cm for the former and 1.9 for the latter.
It was 9.
参考例２ 比較例１で出発材料として用いた天然黒鉛粉末そのもの
の電気抵抗率及び真比重を測定した。Reference Example 2 The electrical resistivity and true specific gravity of the natural graphite powder itself used as the starting material in Comparative Example 1 were measured.
その結果は、前者が1.2×10-1Ω−cmであり、後者が2.2
6であった。The result is 1.2 × 10 -1 Ω-cm for the former and 2.2 for the latter.
Was 6.
実施例４ 平均粒子径0.19μｍのコークス粉末0.5gを前処理するこ
となく下記ニッケルメッキ液100mlに浸漬し、薄いニッ
ケルメッキを試みた。Example 4 0.5 g of coke powder having an average particle size of 0.19 μm was immersed in 100 ml of the following nickel plating solution without pretreatment to try thin nickel plating.
NiCl2・6H2O 16g/1 NaH2PO2・H2O 24g/1 Na2C4H4O4・6H2O 16g/1 HOOCCHOHCH2COOH 18g/1 PH 5.6 ニッケルメッキ液の温度、同液への浸漬時間は90℃,45
分とした。NiCl 2・ 6H 2 O 16g / 1 NaH 2 PO 2・ H 2 O 24g / 1 Na 2 C 4 H 4 O 4・ 6H 2 O 16g / 1 HOOCCHOHCH 2 COOH 18g / 1 PH 5.6 Temperature of nickel plating solution Immersion time in liquid is 90 ℃, 45
Minutes
その結果、このような簡単な方法によってもニッケルメ
ッキができることを確認した。As a result, it was confirmed that nickel could be plated by such a simple method.
この実施例の変形例として、メッキ液量，メッキ液温
度，同液への浸漬時間を、200ml,85℃,30分、500ml,95
℃,60分と変えたものについても実験したが、同様な結
果をえた。As a modified example of this embodiment, the plating solution amount, the plating solution temperature, and the immersion time in the solution are 200 ml, 85 ° C., 30 minutes, 500 ml, 95
Experiments were also conducted with the temperature changed to 60 ° C for 60 minutes, but similar results were obtained.
前述した様に、本発明で原材料として用いるコークス
は、材料価格自体がグラファイトより安いばかりか、摩
擦係数が大きい為その微粉砕が容易であるという利点を
有している。As described above, the coke used as a raw material in the present invention has the advantages that the material price itself is lower than that of graphite and that the coke is easy to pulverize because it has a large friction coefficient.
また、グラファイト粉末粒子は、その粒子形状が鱗片状
に近く、また、粒度・形状も不揃いで均一性に欠けたも
のとして得られるが、コークス粉末は、その形状が球状
に近く、篩わけのような簡単な操作を施すのみで、粒度
・形状ともに驚くほどばらつきのないものとして得ら
れ、しかも粒子表面には微細な凹凸がある。In addition, graphite powder particles are obtained as particles having a scaly particle shape and lacking uniformity due to irregular particle size and shape. By simply performing a simple operation, the particle size and shape are surprisingly uniform, and the surface of the particle has fine irregularities.
その為、本発明の金属化コークス粉末は、均一に金属で
被覆されたものとして得易いだけでなく、これを樹脂等
に分散して用いる場合には、均一な厚みの樹脂膜となし
易く、更にまた導電性樹脂としての応用に際しても膜
面，膜厚のいずれの方向へも導電性が良好な導電性樹脂
として設計が可能となる。Therefore, the metallized coke powder of the present invention is not only easily obtained as one uniformly coated with metal, but when it is used by dispersing it in a resin or the like, it is easy to form a resin film having a uniform thickness, Furthermore, when applied as a conductive resin, it can be designed as a conductive resin having good conductivity in both the film surface and film thickness directions.
しかも本発明の金属化コークス粉末は、グラファイト粉
末粒子に比較して硬度も高いため従来用いられている高
価な銀，ニッケル，銅などの粉末にかわる導電性フィラ
ーとして特に利用価値の高いものである。Moreover, since the metallized coke powder of the present invention has a higher hardness than graphite powder particles, it is particularly useful as a conductive filler that replaces expensive powders of silver, nickel, copper and the like that have been conventionally used. .
───────────────────────────────────────────────────── フロントページの続き (72)発明者 谷本 文男 京都府京都市上京区中立売通室町西入ル三 丁町471 室町スカイハイツ112号 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Fumio Tanimoto Neutral Selling Muromachi Nishiiri Lu Sanchocho 471 Muromachi Sky Heights 112, Kamigyo-ku, Kyoto-shi, Kyoto Prefecture
Claims (1)
粉末個々の表面を金属化してなる金属化コークス粉末。1. A metallized coke powder obtained by metallizing the surface of each coke powder pulverized to a particle diameter of 100 μm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32403488A JPH0725933B2 (en) | 1988-12-22 | 1988-12-22 | Metallized coke powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32403488A JPH0725933B2 (en) | 1988-12-22 | 1988-12-22 | Metallized coke powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02169638A JPH02169638A (en) | 1990-06-29 |
| JPH0725933B2 true JPH0725933B2 (en) | 1995-03-22 |
Family
ID=18161416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32403488A Expired - Fee Related JPH0725933B2 (en) | 1988-12-22 | 1988-12-22 | Metallized coke powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725933B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2823799B2 (en) * | 1994-07-29 | 1998-11-11 | 信越ポリマー株式会社 | Anisotropic conductive adhesive |
-
1988
- 1988-12-22 JP JP32403488A patent/JPH0725933B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02169638A (en) | 1990-06-29 |
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