JPH0753626B2 - Carbonaceous composite material - Google Patents
Carbonaceous composite materialInfo
- Publication number
- JPH0753626B2 JPH0753626B2 JP63113634A JP11363488A JPH0753626B2 JP H0753626 B2 JPH0753626 B2 JP H0753626B2 JP 63113634 A JP63113634 A JP 63113634A JP 11363488 A JP11363488 A JP 11363488A JP H0753626 B2 JPH0753626 B2 JP H0753626B2
- Authority
- JP
- Japan
- Prior art keywords
- composite material
- skeleton structure
- carbon
- dimensional skeleton
- base material
- 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 - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 この発明はカーボン質複合材料に関する。TECHNICAL FIELD The present invention relates to a carbonaceous composite material.
従来の技術 三次元骨格構造を有する金属多孔体の電極は従来公知で
ある。たとえば、発泡ウレタンフォームの表面にNiやZu
−Cu等の電気メッキを施したあと、ウレタンフォームを
焼去させることにより連通孔を有する発泡金属にして電
極を構成している。2. Description of the Related Art A metal porous electrode having a three-dimensional skeleton structure is conventionally known. For example, Ni or Zu on the surface of urethane foam
After electroplating with Cu or the like, the urethane foam is burned off to form a foam metal having communication holes to form an electrode.
発明が解決しようとする課題 従来の発泡金属においては、三次元骨格の断面がウレタ
ンフォームの焼去後に空洞として残存する。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the conventional foam metal, the cross section of the three-dimensional skeleton remains as a cavity after the urethane foam is burned out.
発泡金属のみで成りたっているため、骨格構造の強度が
小さくなる欠点があった。Since it is composed only of foam metal, it has a drawback that the strength of the skeleton structure becomes small.
そこで、この発明は、従来の三次元骨格の金属多孔体に
比較して強度を向上させることのできるカーボン質複合
材料、例えば電極等に用いる複合材料を提供することを
目的としている。Then, this invention aims at providing the carbonaceous composite material which can improve strength compared with the conventional three-dimensional frame | skeleton metal porous body, for example, the composite material used for an electrode etc.
課題を解決するための手段 前述の目的を達成するために、この発明は、結晶子の大
きさLa(Å)が300Å以下で、ブタノール浸漬法の比重
が1.70g/cc以下であるガラス状カーボンからなるカーボ
ン三次元骨格構造基材が骨格中に連通孔を有し、かつカ
ーボン三次元骨格構造基材の表面がCu,NiまたはCrの導
電性金属の薄膜によって被覆されていることを特徴とす
るカーボン質複合材料を要旨としている。Means for Solving the Problems In order to achieve the above-mentioned object, the present invention is a glassy carbon having a crystallite size La (Å) of 300 Å or less and a specific gravity of butanol dipping method of 1.70 g / cc or less. The carbon three-dimensional skeleton structure base material made of consists of communicating holes in the skeleton, and the surface of the carbon three-dimensional skeleton structure base material is covered with a thin film of Cu, Ni or Cr conductive metal. The main point is a carbonaceous composite material.
所定の条件をみたすガラス状カーボンによって三次元骨
格構造の基材を構成し、その基材の表面に薄膜状にCu,N
i,Crの導電性金属を被覆した。A substrate with a three-dimensional skeleton structure is composed of glassy carbon that satisfies the specified conditions, and Cu, N is formed in a thin film on the surface of the substrate.
i, Cr conductive metal was coated.
作用 基材がガラス状カーボンよりなり高強度を有するため、
複合材料の強度を大きくできる。Since the base material is made of glassy carbon and has high strength,
The strength of the composite material can be increased.
また、導電性金属の薄膜の厚みを小さくしても、強度上
の問題が生じない。Further, even if the thickness of the thin film of the conductive metal is reduced, the problem of strength does not occur.
実施例 三次元骨格構造のポーラスの軟質のポリエステル系ウレ
タンフォームに樹脂(たとえばフルフリルアルコール重
合物)を付着させる。たとえば、ウレタンフォームにフ
リフリルアルコール重合物を含浸させる操作において、
目詰まりがなく、かつ均一に脱液が行えるように遠心脱
液装置を用いて含浸するのが好ましい。Example A resin (for example, a furfuryl alcohol polymer) is attached to a porous soft polyester-based urethane foam having a three-dimensional skeleton structure. For example, in the operation of impregnating a urethane foam with a furfuryl alcohol polymer,
It is preferable to impregnate using a centrifugal dewatering device so that dewatering can be performed uniformly without clogging.
そのあと、150℃で樹脂を乾燥硬化させる。しかる後、
非酸化性雰囲気(たとえば窒素雰囲気)において950℃
で焼成する。この焼成によりウレタンフォームは炭化
し、樹脂はガラス状カーボンとなり、骨格中に連通孔を
有するガラス状カーボン三次元骨格構造の基材を形成す
る。After that, the resin is dried and cured at 150 ° C. After that,
950 ° C in a non-oxidizing atmosphere (for example, nitrogen atmosphere)
Bake at. By this firing, the urethane foam is carbonized, the resin becomes glassy carbon, and a base material having a glassy carbon three-dimensional skeleton structure having communication holes in the skeleton is formed.
なお、前述の含浸→硬化→焼成の工程を複数回くり返し
たり、焼成後に純化のために塩素ガスと接触させながら
約2300℃で加熱してもよい。The above-mentioned steps of impregnation → curing → firing may be repeated a plurality of times, or heating may be performed at about 2300 ° C. while contacting with chlorine gas for purification after firing.
ガラス状カーボンの結晶子の大きさLa(Å)が300Åよ
りも大きいと、結晶子が大きすぎるため、強度の低下が
みられる。また、ブタノール浸漬法の比重が1.70g/ccよ
りも大きいと、製造が極めて困難となる。When the crystallite size La (Å) of glassy carbon is larger than 300 Å, the crystallite is too large and the strength is reduced. If the specific gravity of the butanol dipping method is higher than 1.70 g / cc, the production becomes extremely difficult.
前述のようにして作られた三次元骨格構造のガラス状カ
ーボン基材の表面に電解メッキ法によりCu,NiまたはCr
の薄膜を形成し、各骨格の表面を被覆する。Cu, Ni or Cr was formed on the surface of the glassy carbon substrate of the three-dimensional skeleton structure prepared as described above by electrolytic plating.
To form a thin film of and coat the surface of each skeleton.
たとえば、Cuの場合は、ガラス状カーボン基材を60℃で
3分間煮沸脱脂してから3%のHClで中和し、塩化パラ
ジウムで活性化処理したのち、25℃で15分間メッキ処理
をする。For example, in the case of Cu, the glassy carbon substrate is boiled and degreased at 60 ° C for 3 minutes, neutralized with 3% HCl, activated with palladium chloride, and then plated at 25 ° C for 15 minutes. .
他方、Niの場合は、Cuと同じ前処理を終えたのち、90℃
で30分間メッキ処理をする。On the other hand, in the case of Ni, after the same pretreatment as that of Cu was completed, 90 ° C
Plate for 30 minutes.
薄膜の厚みは20μm未満であると三次元骨格構造の強度
が十分でなく、2mmを越えると三次元骨格構造の空隙が
少なくなるので20μm〜2mmが好ましい。If the thickness of the thin film is less than 20 μm, the strength of the three-dimensional skeleton structure is not sufficient, and if it exceeds 2 mm, the voids of the three-dimensional skeleton structure are reduced, so 20 μm to 2 mm is preferable.
電解メッキ法以外の方法(たとえば、プラズマ法、スパ
ッタリング法、非電解メッキ法、CVD法等)によって薄
膜を形成してもよい。The thin film may be formed by a method other than the electrolytic plating method (for example, a plasma method, a sputtering method, a non-electrolytic plating method, a CVD method, etc.).
本発明による複合材料は、電磁波シールド材料やスピー
カ・コーン材料としても使用できる。The composite material according to the present invention can also be used as an electromagnetic wave shielding material or a speaker cone material.
発明の効果 本発明によれば、ガラス状カーボンからなるカーボン三
次元骨格構造基材を備えるので、複合材料の強度を大き
くできる。EFFECTS OF THE INVENTION According to the present invention, since the carbon three-dimensional skeleton structure substrate made of glassy carbon is provided, the strength of the composite material can be increased.
しかも、カーボン三次元骨格構造基材が骨格中に連通孔
を有するので、その三次元骨格構造の空隙を増やすこと
が容易である。Moreover, since the carbon three-dimensional skeleton structure base material has communication holes in the skeleton, it is easy to increase the number of voids in the three-dimensional skeleton structure.
したがって、本発明による複合材料は、電極、電磁波シ
ールド、スピーカ・コーン等に用いる複合材料として好
適に使用できる。Therefore, the composite material according to the present invention can be suitably used as a composite material used for electrodes, electromagnetic wave shields, speaker cones and the like.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 笠原 雅寿 山形県西置賜郡小国町大字小国町378番地 東芝セラミックス株式会社小国製造所内 (72)発明者 金森 正晃 山形県西置賜郡小国町大字小国町378番地 東芝セラミックス株式会社小国製造所内 (56)参考文献 特開 昭58−69786(JP,A) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masatoshi Kasahara 378 Oguni Town, Oguni Town, Nishiokitama District, Yamagata Prefecture Inside the Oguni Factory of Toshiba Ceramics Co., Ltd. (72) Masaaki Kanamori 378 Oguni Town, Oguni Town, Nishiokitama District, Yamagata Prefecture Address Toshiba Ceramics Co., Ltd. Oguni Factory (56) Reference JP-A-58-69786 (JP, A)
Claims (1)
ブタノール浸漬法の比重が1.70g/cc以下であるガラス状
カーボンからなるカーボン三次元骨格構造基材が骨格中
に連通孔を有し、かつカーボン三次元骨格構造基材の表
面がCu,NiまたはCrの導電性金属の薄膜によって被覆さ
れていることを特徴とするカーボン質複合材料。1. A crystallite size La (Å) of 300 Å or less,
Specific gravity of butanol immersion method 1.70 g / cc or less carbon three-dimensional skeleton structure base material consisting of glassy carbon has communication holes in the skeleton, and the surface of the carbon three-dimensional skeleton structure base material Cu, Ni or A carbonaceous composite material characterized by being coated with a thin film of a conductive metal of Cr.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63113634A JPH0753626B2 (en) | 1988-05-12 | 1988-05-12 | Carbonaceous composite material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63113634A JPH0753626B2 (en) | 1988-05-12 | 1988-05-12 | Carbonaceous composite material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01286983A JPH01286983A (en) | 1989-11-17 |
JPH0753626B2 true JPH0753626B2 (en) | 1995-06-07 |
Family
ID=14617207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63113634A Expired - Lifetime JPH0753626B2 (en) | 1988-05-12 | 1988-05-12 | Carbonaceous composite material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0753626B2 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5869786A (en) * | 1981-10-19 | 1983-04-26 | 花王株式会社 | Porous electroconductive sintered body and manufacture |
-
1988
- 1988-05-12 JP JP63113634A patent/JPH0753626B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH01286983A (en) | 1989-11-17 |
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