JP3010231B2 - Highly conductive carbon fiber structure - Google Patents
Highly conductive carbon fiber structureInfo
- Publication number
- JP3010231B2 JP3010231B2 JP1252892A JP25289289A JP3010231B2 JP 3010231 B2 JP3010231 B2 JP 3010231B2 JP 1252892 A JP1252892 A JP 1252892A JP 25289289 A JP25289289 A JP 25289289A JP 3010231 B2 JP3010231 B2 JP 3010231B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon fiber
- parts
- fiber structure
- highly conductive
- graphite powder
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、燃料電池およびニッケルカドミウム電池の
電極素材乃至電極などとして有用な高導電性炭素繊維構
造体に関する。Description: TECHNICAL FIELD The present invention relates to a highly conductive carbon fiber structure useful as an electrode material or an electrode of a fuel cell and a nickel cadmium battery.
なお、本明細書においては、“部”および“％”とあ
るのは、それぞれ“重量部”および“重量％”を意味す
る。In this specification, “parts” and “%” mean “parts by weight” and “% by weight”, respectively.
また、本発明における“炭素繊維”とは、狭義の“炭
素繊維”のみならず、“黒鉛化炭素繊維”をも包含する
ものとする。Further, the “carbon fiber” in the present invention includes not only “carbon fiber” in a narrow sense but also “graphitized carbon fiber”.
従来技術とその問題点 従来燃料電池およびニッケルカドミウム電池の電極素
材として使用される炭素繊維シートは、黒鉛化した炭素
繊維と接着剤成分（エポキシ樹脂、ウレタン樹脂など）
とを含むスラリーを調製し、抄紙することにより製造さ
れている。しかしながら、この様な炭素繊維シートにお
いては、黒鉛化炭素繊維自体の体積抵抗は、10-3Ωcm程
度であるにもかかわらず、接着剤の主成分である樹脂自
体が絶縁体であるため、シートとしての表面抵抗は、10
1〜102Ω程度となっている。Conventional technology and its problems Conventionally, carbon fiber sheets used as electrode materials for fuel cells and nickel cadmium batteries consist of graphitized carbon fibers and adhesive components (epoxy resin, urethane resin, etc.).
Is prepared by preparing a slurry containing However, in such a carbon fiber sheet, although the volume resistance of the graphitized carbon fiber itself is about 10 −3 Ωcm, the resin itself, which is a main component of the adhesive, is an insulator, Surface resistance is 10
It is about 1 to 10 2 Ω.
従って、黒鉛化した炭素繊維の抄紙時に密度を高めて
接着剤成分の量を出来るだけ減少させることにより、シ
ートの導電性を向上させる試みがなされているが、この
場合には、接着剤成分の量が不十分であるため、シート
としての引張り強度が低く、実用的に問題となってい
る。Therefore, attempts have been made to improve the conductivity of the sheet by increasing the density of the graphitized carbon fiber during papermaking and reducing the amount of the adhesive component as much as possible. Since the amount is insufficient, the tensile strength of the sheet is low, which is a practical problem.
問題点を解決するための手段 本発明者は、上記の如き従来技術の問題点に鑑みて鋭
意研究を重ねた結果、炭素繊維と接着剤成分とを使用し
て炭素繊維シートを製造するに際し、特定量の黒鉛粉末
および／またはカーボンブラックを併用する場合には、
高導電性で且つ引張り強度にも優れた炭素繊維シートが
得られることを見出した。Means for solving the problems The present inventor, as a result of intensive research in view of the problems of the prior art as described above, when producing a carbon fiber sheet using a carbon fiber and an adhesive component, When a specific amount of graphite powder and / or carbon black is used together,
It has been found that a carbon fiber sheet having high conductivity and excellent in tensile strength can be obtained.
また、炭素繊維、接着剤成分ならびに黒鉛粉末および
／またはカーボンブラックからなる組成物を使用する場
合には、シート状のみならず、円筒状、板状、棒状など
の任意の形状の構造体が容易に製造できることを見出し
た。When a composition comprising carbon fiber, an adhesive component, and graphite powder and / or carbon black is used, not only a sheet but also a structure having an arbitrary shape such as a cylinder, a plate, and a rod can be easily formed. It was found that it can be manufactured.
さらに、炭素繊維、接着剤成分ならびに黒鉛粉末およ
び／またはカーボンブラックからなる組成物に特定量の
黒鉛化ミルドファイバーを配合する場合には、得られる
炭素繊維構造体の導電率がさらに一層改善されることを
も見出した。Furthermore, when a specific amount of the graphitized milled fiber is blended with the composition comprising the carbon fiber, the adhesive component, and the graphite powder and / or carbon black, the conductivity of the obtained carbon fiber structure is further improved. I also found that.
本発明者は、さらにまた、上記の接着剤成分に代えて
熱溶融性合成樹脂を使用する場合にも、高導電性で且つ
引張り強度にも優れた炭素繊維構造体が得られることを
見出した。The present inventor has further found that even when a hot-melt synthetic resin is used in place of the adhesive component, a carbon fiber structure having high conductivity and excellent tensile strength can be obtained. .
即ち、本発明は、下記の高導電率炭素繊維構造体を提
供するものである： 炭素繊維100部および粒子径0.01〜２μｍの黒鉛粉末
および／またはカーボンブラック３〜10部が接着剤成分
２〜10部により結合保持されている高導電性炭素繊維構
造体。That is, the present invention provides the following high-conductivity carbon fiber structure: 100 parts of carbon fibers and 3 to 10 parts of graphite powder and / or carbon black having a particle diameter of 0.01 to 2 μm are composed of an adhesive component 2 Highly conductive carbon fiber structure that is bonded and held by 10 parts.
長さ0.05mm〜1mmの黒鉛化ミルドファイバー３〜10部
をさらに含有する上記項に記載の高導電性炭素繊維構
造体。The highly conductive carbon fiber structure according to the above item, further comprising 3 to 10 parts of graphitized milled fiber having a length of 0.05 mm to 1 mm.
炭素繊維100部および粒子径0.01〜２μｍの黒鉛粉末
および／またはカーボンブラック５〜20部が繊維状熱溶
融性合成樹脂５〜40部により結合保持されている高導電
性炭素繊維構造体。A highly conductive carbon fiber structure in which 100 parts of carbon fibers and 5 to 20 parts of graphite powder and / or carbon black having a particle diameter of 0.01 to 2 μm are bound and held by 5 to 40 parts of a fibrous heat-fusible synthetic resin.
長さ0.05mm〜1mmの黒鉛化ミルドファイバー３〜10部
をさらに含有する上記項に記載の高導電性炭素繊維構
造体。The highly conductive carbon fiber structure according to the above item, further comprising 3 to 10 parts of graphitized milled fiber having a length of 0.05 mm to 1 mm.
本願第一発明で使用する炭素繊維は、特に限定され
ず、石炭ピッチ系、石油ピッチ系、PAN系、フェノール
樹脂系、レーヨン系などのいずれであっても良い。ま
た、その寸法なども特に限定されるものではないが、通
常繊維径５〜30μｍ程度（より好ましくは、７〜18μｍ
程度）、繊維長さ１〜20mm程度（より好ましくは、２〜
20mm程度）のものを使用する。The carbon fiber used in the first invention of the present application is not particularly limited, and may be any of coal pitch-based, petroleum pitch-based, PAN-based, phenolic resin-based, rayon-based, and the like. The dimensions are not particularly limited, but usually the fiber diameter is about 5 to 30 μm (more preferably, 7 to 18 μm
Degree), fiber length about 1 to 20 mm (more preferably, 2 to 20 mm)
20mm).
本願第一発明で使用する黒鉛粉末としては、公知の天
然黒鉛および人造黒鉛のいずれもが使用できる。また、
カーボンブラックとしても、特に制限はなく、例えば、
炭化水素の不完全燃焼或いは熱分解により煤として形成
される公知のものが使用できる。黒鉛粉末及びカーボン
ブラックの粒子径は、0.01〜２μｍとする。この粒子径
は、0.01μｍ程度が製造可能な下限値であり、２μｍを
上回る場合には、抄紙時に黒鉛粉末またはカーボンブラ
ックが分離し易くなり、均一な導電性が得られ難い。As the graphite powder used in the first invention of the present application, any of known natural graphite and artificial graphite can be used. Also,
There is no particular limitation on carbon black, for example,
Known materials formed as soot by incomplete combustion or thermal decomposition of hydrocarbons can be used. The particle diameter of the graphite powder and carbon black is 0.01 to 2 μm. When the particle size is about 0.01 μm, which is the lower limit of production, and when it exceeds 2 μm, graphite powder or carbon black is easily separated during papermaking, and it is difficult to obtain uniform conductivity.
本願第一発明で使用する接着剤成分としては、エポキ
シ樹脂、ウレタン樹脂、ポリビニルアルコール、フェノ
ール樹脂などの樹脂を使用する。炭素繊維構造体を製造
するに際しては、これらの樹脂をメタノール、エタノー
ル、プロピルアルコール、メチルエチルケトン、アセト
ン、トルエンなどの有機溶媒に溶解させるか或いは水に
溶解若しくは分散させた液状接着剤の形態で使用する。
これらの樹脂は、単独で使用しても良く、或いは２種以
上を併用しても良い。As the adhesive component used in the first invention of the present application, a resin such as an epoxy resin, a urethane resin, a polyvinyl alcohol, and a phenol resin is used. When manufacturing a carbon fiber structure, these resins are used in the form of a liquid adhesive dissolved in an organic solvent such as methanol, ethanol, propyl alcohol, methyl ethyl ketone, acetone, or toluene, or dissolved or dispersed in water. .
These resins may be used alone or in combination of two or more.
本願第一発明による高導電性炭素繊維構造体は、例え
ば、次のようにして製造される。まず、炭素繊維100部
ならびに黒鉛粉末および／またはカーボンブラック３〜
10部を液媒に溶解若しくは分散させた接着剤２〜10部
（固形分として）に均一に分散させてスラリーを調製し
た後、所定の形状に応じて、成形し、乾燥する。或い
は、炭素繊維、黒鉛粉末および／またはカーボンブラッ
クならびに接着剤成分を所定の液媒に溶解若しくは分散
させて、スラリーを調製しても良い。この際、スラリー
には、炭素繊維構造体の導電特性、機械的特性などを阻
害しない限り、分散剤、安定剤、粘度調整剤などを添加
しておいても良い。スラリーの固形分濃度は、特に限定
されないが、取扱いの容易さ、成形の容易さなどの観点
からは、0.1〜２％程度とすることが好ましい。炭素繊
維構造体の製造は、構造体の形状に応じて適宜選択すれ
ば良く、特に限定されない。例えば、シート状の炭素繊
維構造体を製造する場合には、通常の紙の製造と同様に
して抄紙成形を行なっても良く、或いはフィルターを介
してスラリーの吸引脱水を行なう吸引成形を行なっても
良い。或いは、板状構造体を製造する場合には、所定の
型に注型し、圧縮成形しても良く、また、円筒状構造体
を製造する場合には、遠心成形を行なっても良い。The highly conductive carbon fiber structure according to the first invention of the present application is manufactured, for example, as follows. First, 100 parts of carbon fiber and graphite powder and / or carbon black 3 to
A slurry is prepared by uniformly dispersing 10 parts of the adhesive in 2 to 10 parts (as solid content) dissolved or dispersed in a liquid medium, and then molded and dried according to a predetermined shape. Alternatively, a slurry may be prepared by dissolving or dispersing carbon fiber, graphite powder and / or carbon black, and an adhesive component in a predetermined liquid medium. At this time, a dispersant, a stabilizer, a viscosity modifier and the like may be added to the slurry as long as the conductive properties and mechanical properties of the carbon fiber structure are not impaired. The solid content concentration of the slurry is not particularly limited, but is preferably about 0.1 to 2% from the viewpoint of easy handling, easy forming, and the like. The production of the carbon fiber structure may be appropriately selected according to the shape of the structure, and is not particularly limited. For example, when manufacturing a sheet-like carbon fiber structure, papermaking may be performed in the same manner as in the production of normal paper, or suction-forming may be performed by suction-dewatering slurry through a filter. good. Alternatively, when manufacturing a plate-like structure, casting into a predetermined mold may be performed and compression molding may be performed. When manufacturing a cylindrical structure, centrifugal molding may be performed.
本願第一発明の炭素繊維構造体は、炭素繊維100部お
よび黒鉛粉末および／またはカーボンブラック３〜10部
が、接着剤成分２〜10部（固形分として）によりランダ
ムに接合保持された構成となっている。また、その表面
抵抗は、10-1〜100Ω程度であり、機械的強度にも優れ
ている。The carbon fiber structure of the first invention of the present application has a structure in which 100 parts of carbon fiber and 3 to 10 parts of graphite powder and / or carbon black are randomly joined and held by 2 to 10 parts (as solid content) of an adhesive component. Has become. Further, the surface resistivity is about 10 -1 to 10 0 Omega, is also excellent in mechanical strength.
さらに、本願第一発明においては、炭素繊維構造体の
製造に際し、炭素繊維、黒鉛粉末および／またはカーボ
ンブラックならびに接着剤を含むスラリーに、炭素繊維
100部に対し長さ0.05mm〜1mm程度の黒鉛化ミルドファイ
バーを３〜10部程度の割合で配合しても良い。この場合
には、炭素繊維フィラメント同士の絡合状態がより緊密
となって、構造体の導電性および強度がより一層改善さ
れる。Further, in the first invention of the present application, in producing the carbon fiber structure, the carbon fiber, the graphite powder and / or the slurry containing the carbon black and the adhesive are mixed with the carbon fiber.
Graphitized milled fiber having a length of about 0.05 mm to 1 mm may be blended in an amount of about 3 to 10 parts per 100 parts. In this case, the entangled state of the carbon fiber filaments becomes tighter, and the conductivity and strength of the structure are further improved.
本願第二発明で使用する炭素繊維、黒鉛粉末および／
またはカーボンブラックならびに必要に応じて使用する
黒鉛化ミルドファイバーは、本願第一発明で使用するも
のと同様であって良い。但し、炭素繊維100部に対する
黒鉛粉末および／またはカーボンブラックの配合量は、
５〜20部程度とする。本願第一発明の場合に比して、黒
鉛粉末および／またはカーボンブラックの配合量が多い
のは、融着結合剤として使用する熱融着性合成樹脂によ
る導電性の低下を抑制するためである。The carbon fiber, graphite powder and / or
Alternatively, the carbon black and the graphitized milled fiber used as necessary may be the same as those used in the first invention of the present application. However, the blending amount of graphite powder and / or carbon black with respect to 100 parts of carbon fiber is
About 5 to 20 parts. The reason why the amount of the graphite powder and / or carbon black is larger than that in the case of the first invention of the present application is to suppress the decrease in conductivity due to the heat-fusible synthetic resin used as the fusion bonding agent. .
本願第二発明においては、本願第一発明の接着剤成分
に代えて、熱融着性合成樹脂を使用する。この様な熱融
着性合成樹脂としては、融点が50〜200℃程度のものが
好適であり、具体的には、ポリアクリロニトリル、ポリ
エチレン、ポリプロピレン、ポリビニルアルコール、ポ
リアクリロニトリルなどが例示され、これらの中でもポ
リアクリロニトリルが最も適している。熱融着性合成樹
脂としては、糸状乃至繊維状のものを使用すると、構造
体の強度が改善されるので、より好ましい。In the second invention of the present application, a heat-fusible synthetic resin is used instead of the adhesive component of the first invention of the present application. As such a heat-fusible synthetic resin, those having a melting point of about 50 to 200 ° C. are preferable, and specifically, polyacrylonitrile, polyethylene, polypropylene, polyvinyl alcohol, and polyacrylonitrile are exemplified. Among them, polyacrylonitrile is most suitable. It is more preferable to use a thread-like or fibrous heat-fusible synthetic resin because the strength of the structure is improved.
糸状乃至繊維状の熱融着性合成樹脂としては、糸径５
〜100μｍ程度、長さ0.5〜10mm程度のものが好ましい。
糸状乃至繊維状の熱融着性合成樹脂としては、構造体製
造時の加熱温度では溶融若しくは変質しない高融点繊維
糸の表面に熱溶融性合成繊維を被覆した構造のものを使
用しても良い。As the fibrous or fibrous heat-fusible synthetic resin, a yarn diameter of 5
It is preferably about 100 μm and about 0.5-10 mm in length.
As the fibrous or fibrous heat-fusible synthetic resin, a high-melting fiber yarn that does not melt or deteriorate at the heating temperature at the time of manufacturing the structure and that has a structure in which the heat-fusible synthetic fiber is coated on the surface may be used. .
炭素繊維100部に対する熱融着性合成樹脂の配合量
は、５〜40部程度とする。熱溶融性合成樹脂の配合量が
少なすぎる場合には、炭素繊維構造体の強度が低下する
のに対し、配合量が多すぎる場合には、炭素繊維構造体
の導電性が阻害される。The blending amount of the heat-fusible synthetic resin with respect to 100 parts of the carbon fiber is about 5 to 40 parts. If the blending amount of the heat-fusible synthetic resin is too small, the strength of the carbon fiber structure is reduced, whereas if the blending amount is too large, the conductivity of the carbon fiber structure is hindered.
本願第二発明による高導電性炭素繊維構造体は、例え
ば、次のようにして製造される。まず、炭素繊維、黒鉛
粉末および／またはカーボンブラックならびに熱融着性
合成樹脂を均一に分散させて、水性スラリーを調製す
る。スラリーの調製に際しては、常法に従って、叩解を
行なっても良い。水性スラリーの固形分濃度は、特に限
定されないが、取扱いの容易さ、成形の容易さなどの観
点からは、やはり0.1〜２％程度とすることが好まし
い。スラリーには、炭素繊維構造体の導電特性、機械的
特性などを阻害しない限り、分散剤、安定剤、粘度調整
剤などを添加しておいても良いことは言うまでもない。
また、本願第一発明の場合と同様に、スラリーに、炭素
繊維100部に対し長さ0.05mm〜1mm程度の黒鉛化ミルドフ
ァイバーを３〜10部程度の割合で配合しても良い。次い
で、上記のスラリーを本願第一発明におけると同様にし
て所定の形状に成形した後、使用する熱融着性合成樹脂
の溶融温度に応じた温度で加熱し、合成樹脂の溶融によ
る成形体の一体化および乾燥を行なって、本願第二発明
による炭素繊維構造体を得る。The highly conductive carbon fiber structure according to the second invention of the present application is manufactured, for example, as follows. First, an aqueous slurry is prepared by uniformly dispersing carbon fibers, graphite powder and / or carbon black, and a heat-fusible synthetic resin. In preparing the slurry, beating may be performed according to a conventional method. The solid content concentration of the aqueous slurry is not particularly limited, but is preferably about 0.1 to 2% from the viewpoint of ease of handling and ease of molding. It goes without saying that a dispersant, a stabilizer, a viscosity modifier and the like may be added to the slurry as long as the conductive properties and mechanical properties of the carbon fiber structure are not impaired.
Further, as in the case of the first invention of the present application, the slurry may be blended with about 3 to 10 parts of graphitized milled fiber having a length of about 0.05 mm to 1 mm per 100 parts of carbon fiber. Next, after the above-mentioned slurry is formed into a predetermined shape in the same manner as in the first invention of the present application, the slurry is heated at a temperature according to the melting temperature of the heat-fusible synthetic resin to be used, and the molded body is formed by melting the synthetic resin. The carbon fiber structure according to the second invention of the present application is obtained by integrating and drying.
本願第二発明の炭素繊維構造体は、炭素繊維100部な
らびに黒鉛粉末および／またはカーボンブラック約５〜
20部が、熱融着性合成樹脂５〜40部によりランダムに接
合保持された構成となっている。その表面抵抗は、10-1
〜100Ω程度であり、機械的強度にも優れている。さら
に、炭素繊維100部に対し黒鉛化ミルドファイバーを３
〜10部程度の割合で配合する場合には、炭素繊維フィラ
メント同士の絡合状態がより緊密となって、構造体の導
電性および強度がより一層改善される。The carbon fiber structure of the second invention of the present application has a carbon fiber content of 100 parts and graphite powder and / or carbon black of about 5 to about 5 parts.
Twenty parts are randomly joined and held by 5 to 40 parts of the heat-fusible synthetic resin. Its surface resistance is 10 -1
It is about ~10 0 Ω, is also excellent in mechanical strength. Furthermore, 3 parts of graphitized milled fiber were added to 100 parts of carbon fiber.
When it is blended at a ratio of about 10 parts, the entangled state of the carbon fiber filaments becomes tighter, and the conductivity and strength of the structure are further improved.
発明の効果 本発明によれば、従来の炭素繊維構造体（例えば、シ
ート状炭素繊維）では達成不可能であった表面抵抗10-1
〜100Ω程度という高導電性の炭素繊維構造体が得られ
る。Effects of the Invention According to the present invention, the surface resistance 10 -1 which cannot be achieved with a conventional carbon fiber structure (for example, sheet-like carbon fiber).
To 10 0 Omega about that highly conductive carbon fiber structure can be obtained.
また、本発明による炭素繊維構造体は、シート状、円
筒状、板状、棒状などの任意の形態を取り得るので、広
範な分野で高導電性材料として利用できる。In addition, the carbon fiber structure according to the present invention can take any form such as a sheet, a cylinder, a plate, and a rod, and can be used as a highly conductive material in a wide range of fields.
実 施 例 以下に実施例を示し、本発明の特徴とするところをよ
り一層明確にする。EXAMPLES Examples are shown below to further clarify features of the present invention.
実施例１ 接着剤としてのエポキシ樹脂水溶液（濃度10％）５部
に黒鉛化炭素繊維（長さ３〜30mm、径13μｍ）100部を
分散させ、次いで黒鉛粉末（粒子径0.2μｍ）10部を分
散させた後、さらにポリビニルアルコール水溶液（濃度
0.5％）５部を加え、均一なスラリーを得た。Example 1 100 parts of graphitized carbon fiber (length 3 to 30 mm, diameter 13 μm) was dispersed in 5 parts of an epoxy resin aqueous solution (concentration 10%) as an adhesive, and then 10 parts of graphite powder (particle diameter 0.2 μm) was dispersed. After dispersing, further add polyvinyl alcohol aqueous solution (concentration
0.5%) to obtain a uniform slurry.
次いで、多数の吸引用小孔を設けたフィルターの一面
側から吸引を行ないつつ他の一面にスラリーを付着させ
た後、フィルター上に形成された湿潤状態のシートをフ
ィルターから取り外し、140℃で120分間加熱乾燥した。Then, after suction was performed from one side of the filter provided with a large number of suction holes, the slurry was attached to the other side, and the wet sheet formed on the filter was removed from the filter, and the sheet was removed at 140 ° C. for 120 hours. Heat and dry for minutes.
得られたシート状炭素繊維構造体は、30g/m2で、厚さ
0.3mm、表面抵抗７×10-1Ωであった。The sheet-like carbon fiber structures, with 30 g / m 2, thickness
0.3 mm and a surface resistance of 7 × 10 −1 Ω.
実施例２ 長さ0.7mmの黒鉛化ミルドファイバーを炭素繊維100部
に対し７部の割合で配合する以外は実施例１と同様にし
てシート状炭素繊維構造体を得た。Example 2 A sheet-like carbon fiber structure was obtained in the same manner as in Example 1 except that the graphitized milled fiber having a length of 0.7 mm was mixed at a ratio of 7 parts to 100 parts of the carbon fiber.
得られたシート状炭素繊維構造体は、30g/m2で、厚さ
0.5mm、表面抵抗２×10-1Ωであった。The sheet-like carbon fiber structures, with 30 g / m 2, thickness
0.5 mm and a surface resistance of 2 × 10 −1 Ω.
実施例３ 黒鉛化炭素繊維（実施例１と同様のもの）100部、高
融点ポリアクリロニトリル繊維（糸径約10μｍ、長さ約
2mm）10部およびカーボンブラック（粒径0.3μｍ）20部
を水2000部に分散させ、炭素繊維およびポリアクリロニ
トリル繊維の長さが5mm以下となるまで叩解して、均一
なスラリーを得た。Example 3 100 parts of graphitized carbon fiber (same as in Example 1), high melting point polyacrylonitrile fiber (yarn diameter about 10 μm, length about
10 parts of 2 mm) and 20 parts of carbon black (particle size: 0.3 μm) were dispersed in 2,000 parts of water, and beaten until the length of carbon fibers and polyacrylonitrile fibers became 5 mm or less to obtain a uniform slurry.
次いで、実施例１と同様の成形操作を行なって、湿潤
シート状物を得た後、130℃で120分間加熱乾燥した。Next, the same molding operation as in Example 1 was performed to obtain a wet sheet-like material, and then heated and dried at 130 ° C. for 120 minutes.
得られたシート状炭素繊維構造体は、40g/m2で、厚さ
0.5mm、表面抵抗８×10-1Ωであった。The sheet-like carbon fiber structures, with 40 g / m 2, thickness
0.5 mm and a surface resistance of 8 × 10 −1 Ω.
実施例４ 長さ0.17mmの黒鉛化ミルドファイバーを炭素繊維100
部に対し10部の割合で配合する以外は実施例３と同様に
してシート状炭素繊維構造体を得た。Example 4 Graphitized milled fiber having a length of 0.17 mm was converted to carbon fiber 100
A sheet-like carbon fiber structure was obtained in the same manner as in Example 3 except that 10 parts by weight was added to 10 parts by weight.
得られたシート状炭素繊維構造体は、40g/m2で、厚さ
0.4mm、表面抵抗１×10-1Ωであった。The sheet-like carbon fiber structures, with 40 g / m 2, thickness
0.4 mm and a surface resistance of 1 × 10 −1 Ω.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｄ２１Ｈ 5/00 Ｄ 5/18 Ｆ (56)参考文献 特開 昭57−174805（ＪＰ，Ａ) 特開 昭63−40261（ＪＰ，Ａ) 特開 昭63−254669（ＪＰ，Ａ) 特公 昭48−27554（ＪＰ，Ｂ１) (58)調査した分野(Int.Cl.7，ＤＢ名) H01B 1/24 H01M 4/96 C04B 26/00 D21H 27/00 D21H 13/50 ──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. 7 Identification code FI D21H 5/00 D 5/18 F (56) References JP-A-57-174805 (JP, A) JP-A-63-40261 ( JP, A) JP-A-63-254669 (JP, A) JP-B-48-27554 (JP, B1) (58) Fields investigated (Int. Cl. 7 , DB name) H01B 1/24 H01M 4/96 C04B 26/00 D21H 27/00 D21H 13/50
Claims (4)
の黒鉛粉末および／またはカーボンブラック３〜10部が
接着剤成分２〜10部により結合保持されている高導電性
炭素繊維構造体。1. 100 parts of carbon fiber and a particle size of 0.01 to 2 μm
A highly conductive carbon fiber structure, wherein 3 to 10 parts of graphite powder and / or carbon black are bound and held by 2 to 10 parts of an adhesive component.
ー３〜10部をさらに含有する請求項に記載の高導電性
炭素繊維構造体。2. The highly conductive carbon fiber structure according to claim 1, further comprising 3 to 10 parts of graphitized milled fiber having a length of 0.05 mm to 1 mm.
の黒鉛粉末および／またはカーボンブラック５〜20部が
繊維状熱溶融性合成樹脂５〜40部により結合保持されて
いる高導電性炭素繊維構造体。3. 100 parts of carbon fiber and particle size of 0.01 to 2 μm
A highly conductive carbon fiber structure, wherein 5 to 20 parts of graphite powder and / or carbon black are bound and held by 5 to 40 parts of a fibrous heat-fusible synthetic resin.
ー３〜10部をさらに含有する請求項に記載の高導電性
炭素繊維構造体。4. The highly conductive carbon fiber structure according to claim 1, further comprising 3 to 10 parts of graphitized milled fiber having a length of 0.05 mm to 1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1252892A JP3010231B2 (en) | 1989-09-27 | 1989-09-27 | Highly conductive carbon fiber structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1252892A JP3010231B2 (en) | 1989-09-27 | 1989-09-27 | Highly conductive carbon fiber structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03114106A JPH03114106A (en) | 1991-05-15 |
| JP3010231B2 true JP3010231B2 (en) | 2000-02-21 |
Family
ID=17243620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1252892A Expired - Fee Related JP3010231B2 (en) | 1989-09-27 | 1989-09-27 | Highly conductive carbon fiber structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3010231B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10902968B2 (en) | 2017-06-08 | 2021-01-26 | Lg Chem, Ltd. | Composite conductive material having excellent dispersibility, slurry for forming lithium secondary battery electrode using the same, and lithium secondary battery |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3540478B2 (en) * | 1995-11-24 | 2004-07-07 | 鹿島石油株式会社 | Anode material for lithium ion secondary battery |
| JP3521619B2 (en) * | 1996-06-07 | 2004-04-19 | 東レ株式会社 | Carbon fiber paper and porous carbon plate |
| US20110159939A1 (en) | 2009-12-24 | 2011-06-30 | Jason McCarthy | Fight analysis system |
| JP5443401B2 (en) * | 2011-01-21 | 2014-03-19 | 株式会社ノリタケカンパニーリミテド | Gas diffusion layer of polymer electrolyte fuel cell, membrane-electrode assembly including gas diffusion layer, method for producing gas diffusion layer, and slurry used for production of gas diffusion layer |
| JP5443413B2 (en) * | 2011-03-09 | 2014-03-19 | 株式会社ノリタケカンパニーリミテド | Gas diffusion layer of polymer electrolyte fuel cell, membrane-electrode assembly of polymer electrolyte fuel cell including gas diffusion layer, and slurry used for production of gas diffusion layer |
-
1989
- 1989-09-27 JP JP1252892A patent/JP3010231B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10902968B2 (en) | 2017-06-08 | 2021-01-26 | Lg Chem, Ltd. | Composite conductive material having excellent dispersibility, slurry for forming lithium secondary battery electrode using the same, and lithium secondary battery |
| US11837376B2 (en) | 2017-06-08 | 2023-12-05 | Lg Energy Solution, Ltd. | Composite conductive material having excellent dispersibility, slurry for forming lithium secondary battery electrode using the same, and lithium secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03114106A (en) | 1991-05-15 |
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