JPS5813108B2 - Conductive powder adhesive and its manufacturing method - Google Patents
Conductive powder adhesive and its manufacturing methodInfo
- Publication number
- JPS5813108B2 JPS5813108B2 JP3361380A JP3361380A JPS5813108B2 JP S5813108 B2 JPS5813108 B2 JP S5813108B2 JP 3361380 A JP3361380 A JP 3361380A JP 3361380 A JP3361380 A JP 3361380A JP S5813108 B2 JPS5813108 B2 JP S5813108B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- adhesive
- resin
- microns
- conductive
- 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
Links
Description
【発明の詳細な説明】
本発明は常温で粉体状を呈する導電性接着剤およびその
製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a conductive adhesive that is powder-like at room temperature and a method for producing the same.
固体物質の静電荷帯電防止をすることが必要な場合ある
いは電線ケーブルのポリ塩化ビニルあるいはポリオレフ
イン樹脂被覆の耐電圧性能を確認するといった場合には
、これまで金属箔を張りつけたり、水槽中に被試験物を
入れ、外面に導電性をもたせるという方法がとられてい
る。When it is necessary to prevent static charges on solid materials, or when checking the voltage resistance of polyvinyl chloride or polyolefin resin coatings on electric wires and cables, conventional methods have been to attach metal foil or place the test object in a water tank. The method used is to put something inside and make the outer surface conductive.
またＩＣやＬＳＩなどの半導体製品のごとく帯電を極端
に避けねばならない製品の収納や作業場では、導電性を
有する金属粉をゴム基材に混入した混和物としてこれを
布状あるいは平板状に形成した材料を利用するなどの方
法がとられている。In addition, in storage and workplaces where products such as semiconductor products such as ICs and LSIs must be extremely protected from static electricity, conductive metal powder is mixed into a rubber base material and formed into a cloth or flat plate. Methods such as using materials are being used.
しかしながら、このような従来の方法では導電性を得る
ために手間がかかるうえ、場合により多額の費用がかか
るのである。However, such conventional methods require a lot of effort and, in some cases, a large amount of cost to obtain conductivity.
本発明は上記のような観点から、各種の樹脂製品、金属
体、布、不織布、フイルム、電線コード、機器用巻線な
どの表面に簡単に溶触、固化しうる接着性の導電性塗膜
を形成する導電性粉体状の接着剤およびその製造方法を
提供しようとするものである。In view of the above, the present invention provides an adhesive conductive coating film that can be easily melted and solidified on the surfaces of various resin products, metal objects, cloth, nonwoven fabrics, films, electric wire cords, device windings, etc. The present invention aims to provide a conductive powder-like adhesive to be formed and a method for producing the same.
ポリオレフイン系樹脂、エチレン−酢酸ビニル共重合樹
脂、ポリエステル樹脂、エポキシ樹脂など接着性を有す
る樹脂は、有機溶剤を混合したりｉｏｏ℃ないし数１０
０℃程度に溶融後固化することにより、夫々親和性のあ
る物質の表面に塗膜あるいは接着被膜を形成することが
知られている。Adhesive resins such as polyolefin resins, ethylene-vinyl acetate copolymer resins, polyester resins, and epoxy resins may be mixed with organic solvents or
It is known that a coating film or adhesive film can be formed on the surface of a substance that has an affinity for the substance by melting it at about 0°C and then solidifying it.
しかしながら、このような物質に導電性を有する金属粉
や黒鉛粉を混入して接着剤を得たとしてもこの接着剤は
直ちに導電性のある一様な被膜とはなりにくい。However, even if an adhesive is obtained by mixing conductive metal powder or graphite powder into such a substance, it is difficult to form a uniform conductive film immediately.
これは導電性粉粒状態の表面全周に樹脂が付着して溶融
時独立し、導電性粉粒体間の接触が妨害されて連続的な
導電体とならないためである。This is because the resin adheres to the entire surface of the conductive powder and becomes independent when melted, preventing contact between the conductive powder and forming a continuous conductor.
これに対して本発明導電性粉状体接着剤は、接着被膜形
成後も接着性樹脂と金属粉などが一体となって導電性を
発揮するようにしたものである。In contrast, the conductive powder adhesive of the present invention is such that the adhesive resin and metal powder work together to exhibit conductivity even after the adhesive film is formed.
以下本発明の導電性を有する粉体状接着剤の製造方法を
添付の装置図面に基づいて説明するが、それに先立って
装置の概略について述べる。The method for producing a conductive powder adhesive according to the present invention will be described below with reference to the attached drawings of the apparatus, but first an outline of the apparatus will be described.
加熱媒体としてのニクロム線４を中央部に装填した金属
筒体１はその一端に温風発生機８を連設し、他端には出
口導管１５が接続してある。A metal cylinder 1 in which a nichrome wire 4 as a heating medium is loaded in the center has a hot air generator 8 connected to one end thereof, and an outlet conduit 15 connected to the other end.
そして前記金属筒体１には中央部のニクロム線４を装填
した部分をはさんで温風発生機８連設側の上方に粉粒状
樹脂供給用ホッパー５を設置してその先端ノズル７を該
金属筒体１内に嵌入せしめ、また中央部のニクロム線４
装填部とその前方混合部１３との間の上方には導電性粉
粒状物供給ホッパ−９を設置し、その先端ノズル１１は
該筒体１内に嵌入せしめてある。Then, a hopper 5 for supplying powdery resin is installed above the side where 8 hot air generators are installed, sandwiching the central part of the metal cylinder 1 loaded with the nichrome wire 4, and the tip nozzle 7 of the hopper 5 is installed above the side where 8 hot air generators are installed. It is fitted into the metal cylinder 1, and the nichrome wire 4 in the center
A conductive powder supply hopper 9 is installed above the loading section and its front mixing section 13, and its tip nozzle 11 is fitted into the cylindrical body 1.
３はリード線であってニクロム線４を電源装置２に接続
している。A lead wire 3 connects the nichrome wire 4 to the power supply device 2.
また１４は金属筒体１の混合部１３の外周に捲回した冷
却水循環用パイブであり、１６は出口導管１５より落下
してくる導電性粉体状接着剤１７を収容する受容槽であ
る。Further, 14 is a pipe for circulating cooling water wound around the outer periphery of the mixing part 13 of the metal cylinder 1, and 16 is a receiving tank for accommodating the conductive powder adhesive 17 falling from the outlet conduit 15.
このような装置を用いて、導電性粉体状接着剤を製造す
るに当りまず加熱することによって接着性を呈する樹脂
、例えばエチレン−酢酸ビニル樹脂を破砕して数ミクロ
ン乃至数百ミクロンの大きさの粉粒状とし、これを５の
樹脂供給ホツパーに収容し、９の導電性粉粒状物供給ホ
ッパーには前記の樹脂粉粒状物より若干小さい粒径の黒
鉛粉粒状物を収容する。When producing conductive powder adhesive using such a device, first, a resin that exhibits adhesive properties by heating, such as ethylene-vinyl acetate resin, is crushed into particles with a size of several microns to several hundred microns. This powder is stored in a resin supply hopper 5, and a graphite powder granule having a slightly smaller particle size than the resin powder granule is stored in a conductive powder granule supply hopper 9.
しかして金属筒体１内に温風発生機８がら加温空気を送
り込む。Thus, heated air is sent into the metal cylindrical body 1 by the hot air generator 8.
そしてこの加温空気噴流中に樹脂用ホッハー５の先端ノ
ズル７からエチレンー酢酸ビニル樹脂粉、粒状物６を放
出し、該筒体１内で１００〜２００℃に加熱軟化せしめ
て気中流動雰囲気１２としたのち、この中に９の導電性
粉粒状物供給ホッパーに収容した黒鉛粉粒状物１０をそ
の先端ノズル１１から添加して混合流動雰囲気に転換し
て該雰囲気中で前記樹脂粉粒状物と黒鉛粉粒状物を相互
に衝突せしめる。Ethylene-vinyl acetate resin powder and granules 6 are discharged from the tip nozzle 7 of the Hocher 5 for resin into this heated air jet, and are heated and softened at 100 to 200°C in the cylinder 1 to form an air flow atmosphere 12. After that, the graphite powder granules 10 stored in the conductive powder granules supply hopper 9 are added from the tip nozzle 11 into the mixture to create a mixed flow atmosphere, and the resin powder granules and the granules are mixed in this atmosphere. The graphite powder particles are caused to collide with each other.
これによって個々の樹脂粉粒状物の＝部の表面に導電性
粉粒状物を付着せしめたのち直ちに冷却水を循環してい
る混合部１８で常温以下に冷却し、出口導管１５から導
電性粉体状接着剤１７として受容槽１６に収容するので
ある。As a result, the conductive powder is adhered to the surface of each resin powder and granules, and then immediately cooled to below room temperature in the mixing section 18 where cooling water is circulated, and the conductive powder is transferred from the outlet pipe 15. It is stored in the receiving tank 16 as a shaped adhesive 17.
導電性粉粒状物としては上記の黒鉛のほかカーボンブラ
ックや、アルミニウム、銅、などの金属粉粒体が使用で
きる。In addition to the above-mentioned graphite, carbon black, and metal powder such as aluminum or copper can be used as the conductive powder.
かくして得られた本発明の導電性粉体接着剤はこれを親
和性を有する固体物質表面に付着させ、１００〜２００
℃に加熱溶融したあと圧擦力を加えることによって固体
物質に対して接着被膜を形成すると同時にその表面に導
電性粉粒体による連続性のある導電体とすることができ
るのである。The thus obtained conductive powder adhesive of the present invention is applied to the surface of a solid substance with an affinity of 100 to 200%.
By applying a pressure force after heating and melting the material to a temperature of 0.degree. C., it is possible to form an adhesive film on the solid material and at the same time create a continuous electrical conductor using conductive powder on the surface.
上記のように本発明の導電性粉体接着剤は簡単に各種の
産業機器、基材、樹脂製品の表面を導電性とすることが
でき、帯電防止、電極形成、信号伝達など非常に広い用
途にその実用的価値を示すものである。As mentioned above, the conductive powder adhesive of the present invention can easily make the surfaces of various industrial equipment, base materials, and resin products conductive, and has a wide range of applications such as antistatic, electrode formation, and signal transmission. This shows its practical value.
図面は本発明の導電性粉体接着剤の製造において使用す
る装置の一例を示す縦断側面図である。
１……金属筒体、６……樹脂粉粒状物、１０……導電性
粉粒状物。The drawing is a longitudinal side view showing an example of an apparatus used in manufacturing the conductive powder adhesive of the present invention. 1...Metal cylinder, 6...Resin powder granule, 10...Electroconductive powder granule.
Claims (1)
レンー酢酸ビニル樹脂、ウレタン樹脂などの合成樹脂を
数ミクロン乃至数百ミクロンの粉粒状体とし、該粉粒状
体の表面の一部分に数ミクロン乃至数百ミクロンの金属
粉または黒鉛粉を固着せしめたことを特徴とする常温で
粉体かつ導電性を有する粉体状接着剤。 ２ 金属筒体内に該筒体の一方から、加熱によって体表
面に接着親和性を呈する粒径数ミクロン乃至数百ミクロ
ンの粉粒状樹脂を送入し、同時に該筒体に装填した加熱
媒体によって１００〜２００℃に昇温して該筒体内を粉
粒状樹脂を含む流動雰囲気としたのち、該雰囲気内に粒
径数ミクロン乃至数百ミクロンの金属粉または黒鉛粉等
の導電性粉粒状体を混合衝突させてこれを前記体表面が
接着親和性を呈する樹脂の一部分の表面に固着せしめ、
その後直ちに常温に冷却することを特徴とする導電性粉
体状接着剤の製造方法。[Claims] 1. Synthetic resin such as ethylene-vinyl acetate resin or urethane resin that exhibits adhesion affinity to the body surface by heating and melting is made into powder or granules of several microns to hundreds of microns, and a part of the surface of the powder or granules is prepared. A powder adhesive which is a powder and conductive at room temperature, and is characterized by having metal powder or graphite powder of several microns to several hundred microns fixed to the adhesive. 2 Powdered resin with a particle size of several microns to hundreds of microns, which exhibits adhesive affinity to the body surface when heated, is introduced into the metal cylinder from one side of the cylinder, and at the same time, a heating medium loaded in the cylinder is used to After raising the temperature to ~200°C to create a fluid atmosphere containing powdery resin inside the cylinder, conductive powdery particles such as metal powder or graphite powder with a particle size of several microns to several hundred microns are mixed into the atmosphere. collide with the body surface to make it adhere to the surface of a portion of the resin that exhibits adhesive affinity;
A method for producing a conductive powder adhesive, which comprises immediately cooling the adhesive to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3361380A JPS5813108B2 (en) | 1980-03-17 | 1980-03-17 | Conductive powder adhesive and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3361380A JPS5813108B2 (en) | 1980-03-17 | 1980-03-17 | Conductive powder adhesive and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56129277A JPS56129277A (en) | 1981-10-09 |
| JPS5813108B2 true JPS5813108B2 (en) | 1983-03-11 |
Family
ID=12391301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3361380A Expired JPS5813108B2 (en) | 1980-03-17 | 1980-03-17 | Conductive powder adhesive and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5813108B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62260877A (en) * | 1986-04-17 | 1987-11-13 | Kawakami Toryo Kk | Anisotropically electroconductive adhesive |
| IL96196A (en) * | 1989-11-01 | 1995-03-30 | Raychem Ltd | Electrically conductive polymer composition |
-
1980
- 1980-03-17 JP JP3361380A patent/JPS5813108B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56129277A (en) | 1981-10-09 |
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