JPS59112028A - Carbon fiber coated with silica compound and ceramic reinforced therewith - Google Patents

Carbon fiber coated with silica compound and ceramic reinforced therewith

Info

Publication number
JPS59112028A
JPS59112028A JP57218331A JP21833182A JPS59112028A JP S59112028 A JPS59112028 A JP S59112028A JP 57218331 A JP57218331 A JP 57218331A JP 21833182 A JP21833182 A JP 21833182A JP S59112028 A JPS59112028 A JP S59112028A
Authority
JP
Japan
Prior art keywords
silica compound
carbon fiber
fiber
fibers
carbonaceous
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
Application number
JP57218331A
Other languages
Japanese (ja)
Inventor
Fujio Nakao
中尾 富士夫
Hajime Asai
浅井 肇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP57218331A priority Critical patent/JPS59112028A/en
Publication of JPS59112028A publication Critical patent/JPS59112028A/en
Pending legal-status Critical Current

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  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Chemical Treatment Of Fibers During Manufacturing Processes (AREA)

Abstract

PURPOSE:To prepare the titled carbon fiber having high wettability and corrosion resistance to ceramics, and suitable for the fishing rod, golf club shaft, industrial materials, etc., by attaching a specific amount of a powdery silica compound to a carbonaceous filber, and heat-treating the fiber at high temperature in nitrogen atmosphere. CONSTITUTION:A powdery silica compound (preferably Si, SiO2, Si3N4, SiC, etc. having a particle diameter of 1-10mu) is attached to carbonaceous fiber at a volume ratio of 10-500%. The fiber is heat-treated at 800-1,300 deg.C in nitrogen atmosphere to obtain the objective coated carbon fiber. The fiber is shaped to a desired shape, and treated at >=1,300 deg.C under pressure to obtain a reinforced ceramic.

Description

【発明の詳細な説明】 この発明は、炭素繊維強化セラミックを製造するに当り
、セラミン、りに対する濡れ性、耐腐食性の良好な炭素
繊維に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to carbon fibers having good wettability to ceramin and resin and good corrosion resistance when producing carbon fiber reinforced ceramics.

炭素繊維で補強した複合材料は、現在釣竿、ゴルフシャ
フトなどのスポーツ用素材としてばかりでなく、航空機
の構造材料、自動車用ドライブシャフト等の工業用材料
としても使用されている。
Composite materials reinforced with carbon fiber are currently used not only as sports materials such as fishing rods and golf shafts, but also as industrial materials such as structural materials for aircraft and drive shafts for automobiles.

しかしながら、現在開発が進められて号・る炭素繊維強
化複合材料を構成するマトリックスは、その取扱い性、
成形し易さなどの点よりプラスチックがその主流をしめ
ておりゼラミノクや金属をマトリックスとした炭素繊維
強化複合材料の開発は大きな進展を示していない。その
理由は炭素繊維は高温の金属と接触する際にはその表面
が反応し金属炭化物となって炭素繊維特性が大きく変化
すると共に、炭素繊維とこれらマトリックス成分との濡
れ特性が不十分であることに寄因しており、本発明者等
は炭素繊維のこれら難点を改良すべく検討した結果本発
明を完成した。
However, the matrix that makes up the carbon fiber reinforced composite material, which is currently being developed, is difficult to handle.
Plastics are the mainstream because of their ease of molding, and no significant progress has been made in the development of carbon fiber-reinforced composite materials with a metal matrix. The reason for this is that when carbon fibers come into contact with high-temperature metals, the surface of the carbon fibers reacts and turns into metal carbide, which significantly changes the carbon fiber properties, and the wetting properties between the carbon fibers and these matrix components are insufficient. The present inventors completed the present invention as a result of studies aimed at improving these disadvantages of carbon fibers.

即ち、本発明はシ゛リカ化合物の粉末を体積にして、繊
維の10〜500%付着せしめた炭素質糸を窒素中で8
00−1300℃で加熱処理することを特徴とする炭素
繊維の製造方法である。
That is, in the present invention, carbon fibers to which 10 to 500% of the fibers are attached by volume of silica compound powder are heated in nitrogen for 80 minutes.
This is a method for producing carbon fiber characterized by heat treatment at 00-1300°C.

本発明に用(・るシリカ化合物とはS + 、 S 1
02 rSi3Nう、 SiC等に代表される常温固体
状の物質であり、これらの化合物は本発明を実施するに
際してはその粒径を200メツシユ以下、好ましくは1
〜10μrnの微粉末とするのがよし・。
The silica compounds used in the present invention are S + , S 1
02 rSi3N, SiC, etc. are solid substances at room temperature, and when carrying out the present invention, the particle size of these compounds is 200 mesh or less, preferably 1.
It is best to use a fine powder of ~10 μrn.

本発明を実施するに際して用いる炭素は、アクリロニド
IJル系繊維、セルロース系繊維等の有機繊維を耐炎化
処理したものや石炭系、ピッチ系繊維の耐炎化処理系及
びこれら耐炎化糸を更に高温で処理した炭素化糸、黒鉛
化糸を含むものである。
The carbon used in carrying out the present invention is made by flame-retardantly treating organic fibers such as acrylonide IJ fibers and cellulose fibers, flame-retardantly treated coal-based and pitch-based fibers, and flame-retardant yarns of these fibers that are further heated at high temperatures. It includes treated carbonized yarn and graphitized yarn.

前記、配炎性を有する炭素質繊維へのシリカ化合物の粉
末の付層方法としては、これら炭素質繊維にバインダー
をコーティングしたものにシリカ化合物を付着する方法
、或いは、カルボキシメチルセルロース、アルギン酸ソ
ーダ、天然多糖類、ポリアクリル酸等のバインダー浴液
に前記シリカ化合物粉末を分散せしめて泥漿状態にした
ものに炭素化糸を浸漬コーティングする方法を用いるこ
とができる。
The method for applying the silica compound powder to the flame-distributing carbon fibers includes a method of attaching a silica compound to a binder coated carbon fiber, or a method of attaching a silica compound to a carbon fiber coated with a binder, or a method of attaching a silica compound to a carbon fiber coated with a binder; A method may be used in which the silica compound powder is dispersed in a binder bath liquid of polysaccharide, polyacrylic acid, etc. to form a slurry, and then the carbonized thread is dip-coated.

本発明は前述した如(、シリカ化合物の粒状物を特定量
付着せしめた炭素化糸を窒素雰囲気中800〜1300
℃の温度で熱処理することによって目的とする炭素繊維
、とくにチノ化る1素成分を被覆した炭素繊維を得るこ
とができるが、この処理温度が800℃未満では目的と
する特性を有する炭素繊維とすることができず、一方1
300℃を越えて高い温度を採用する際にはシリカ化合
物とシリカ化合物と炭素質繊維とシリカ化合物とが部分
的に反応する場合も認められ、補強用繊維の特性が低下
する場合もあるので好ましくない。
The present invention is as described above (i.e., carbonized yarn having a specific amount of silica compound particles attached thereto is heated to 800 to 1300 mL in nitrogen atmosphere
By heat-treating at a temperature of 800°C, it is possible to obtain the desired carbon fibers, especially carbon fibers coated with one element that can be tinized. However, if the treatment temperature is lower than 800°C, the carbon fibers with the desired properties cannot be obtained. cannot, while 1
When a high temperature exceeding 300°C is used, it is sometimes observed that the silica compound, the silica compound, the carbonaceous fiber, and the silica compound partially react, and the properties of the reinforcing fiber may deteriorate, so this is not preferred. do not have.

本発明によって作成されたシリカ化合物被覆・炭素繊維
はそのま又金型等の型に装着し、加圧下に1300℃以
上の温度で加熱処理し、シリカ化合物、と(にチノ化ろ
1素をマトリックス成分とする炭素繊維強化セラミック
を作り得る点に大きな特徴を有するものであり、この焼
結時にはMg OヤMg3N2の如きマグネシウム化合
物を共存せしめておくことによって、更に強度特性の優
れたセラミック拐とすることができる。
The silica compound-coated carbon fiber produced according to the present invention is placed directly in a mold such as a mold, and heated under pressure at a temperature of 1,300°C or higher. It has a major feature in that it can produce carbon fiber reinforced ceramics as a matrix component, and by allowing magnesium compounds such as MgO and Mg3N2 to coexist during sintering, it is possible to create ceramics with even better strength properties. can do.

以下実施例により本発明を更に詳細に説明する。The present invention will be explained in more detail with reference to Examples below.

実施例1 アクリル繊KMを酸化処理して得られる耐炎化糸ヲ、S
+ 100 部、カルボキシメチルセルロースソーダ1
部、水150部を混合した泥焚に5分間浸漬させた。該
繊維を窒素中で1200℃で20時間加熱して、シリカ
化合物被覆 炭素繊維を得た。
Example 1 Flame-resistant yarns obtained by oxidizing acrylic fibers KM and S
+ 100 parts, carboxymethyl cellulose soda 1
and 150 parts of water for 5 minutes. The fibers were heated in nitrogen at 1200° C. for 20 hours to obtain silica compound-coated carbon fibers.

さらにこの繊維を1600℃、 200に9/c4で、
3時間ホットプレスして炭素繊維強化セラミックを得た
Furthermore, this fiber was heated at 1600℃ and 200 to 9/c4,
A carbon fiber reinforced ceramic was obtained by hot pressing for 3 hours.

実施例2 アクリル繊維を酸化処理して得られる耐炎化糸を5il
oo部、アルギン酸ソーダ1部、アクリル酸ポリマー0
1部、水200部1混合した泥漿に5分間浸漬させた。
Example 2 5 il of flame-resistant yarn obtained by oxidizing acrylic fiber
oo part, sodium alginate 1 part, acrylic acid polymer 0
1 part and 200 parts of water were mixed for 5 minutes.

該繊維を窒素中で1200℃で20時間加熱して、シリ
カ化合物被覆炭素繊維を得た。さらにこの繊維を160
0℃、200 K7 / aaで3時間ホットプレスし
て炭素繊維強化セラミックを得た。
The fibers were heated in nitrogen at 1200° C. for 20 hours to obtain silica compound-coated carbon fibers. Furthermore, this fiber is added to 160
A carbon fiber reinforced ceramic was obtained by hot pressing at 0 °C and 200 K7/aa for 3 hours.

特許出願人 三菱レイヨン株式会社 代理人弁理士   1)村 武 敏 手 続 補 正 書(自発) 昭和58年6月3日 特許庁長官若杉和夫殿 ■事件の表示 昭和57年特許願第218331、 発明の名称 シリカ化合物被覆炭素繊維及びそれを用いた補強セラミ
、り 3補正をする者 事件との関係  特許出願人 東京都中央区京橋二丁目3番19号 (603)三菱レイヨン株式会社 取締役社長 金 澤 脩 三 4代理人 東京都港区虎ノ門二丁目8番1号 7補正の内容 (1)明細書第4頁第8〜9行目 「シリカ化合物と7リ力化合物と炭素質繊維とシリカ化
合物とがJを「シリカ化合物と炭素質繊維とが」に訂正
Patent applicant Patent attorney representing Mitsubishi Rayon Co., Ltd. 1) Toshite Mura's amendment (spontaneous) June 3, 1980 Mr. Kazuo Wakasugi, Commissioner of the Japan Patent Office■ Indication of the case 1988 Patent application No. 218331, Invention Name of silica compound-coated carbon fiber and reinforcing ceramic using the same, relationship with the person making the third amendment Patent applicant: 2-3-19 Kyobashi, Chuo-ku, Tokyo (603) Kanazawa, President and Director of Mitsubishi Rayon Co., Ltd. Shu, 34 Agent, 2-8-1, Toranomon, Minato-ku, Tokyo Contents of the 7 Amendment (1) Page 4 of the specification, lines 8 to 9: “Silica compounds, 7-liquid compounds, carbonaceous fibers, and silica compounds.” corrected J to "silica compound and carbon fiber".

1

Claims (2)

【特許請求の範囲】[Claims] (1)粉末状シリカ化合物を体積比で炭素質繊維に対し
10〜500%付層せしめ、窒素雰囲気中で800〜1
300℃で熱処理したシリカ化合物被覆炭素繊維。
(1) Powdered silica compound is layered with a volume ratio of 10 to 500% on carbonaceous fibers, and 800 to 1
Silica compound coated carbon fiber heat treated at 300°C.
(2)粉末状シリカ化合物を体積比で炭素質繊維に対し
10〜500%付着せしめ、窒素雰囲気中で800−1
300℃で熱処理し7たものを、所定の形状に保持し、
加圧下で1300℃以上の温度で処理し何型した補強セ
ラミック。
(2) Powdered silica compound is attached to carbonaceous fibers at a volume ratio of 10 to 500%, and 800-1
Heat treated at 300°C and held in a predetermined shape,
Reinforced ceramic processed at temperatures above 1300℃ under pressure.
JP57218331A 1982-12-15 1982-12-15 Carbon fiber coated with silica compound and ceramic reinforced therewith Pending JPS59112028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57218331A JPS59112028A (en) 1982-12-15 1982-12-15 Carbon fiber coated with silica compound and ceramic reinforced therewith

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57218331A JPS59112028A (en) 1982-12-15 1982-12-15 Carbon fiber coated with silica compound and ceramic reinforced therewith

Publications (1)

Publication Number Publication Date
JPS59112028A true JPS59112028A (en) 1984-06-28

Family

ID=16718175

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57218331A Pending JPS59112028A (en) 1982-12-15 1982-12-15 Carbon fiber coated with silica compound and ceramic reinforced therewith

Country Status (1)

Country Link
JP (1) JPS59112028A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6461364A (en) * 1987-08-31 1989-03-08 Sumitomo Electric Industries Ceramics composite and production thereof
JPH01229874A (en) * 1988-03-02 1989-09-13 Agency Of Ind Science & Technol Woven and knitted cloth consisting of silicon-carbon conjugated fiber and production thereof
US4948574A (en) * 1984-07-10 1990-08-14 Teijin Limited Method of manufacturing of pitch-base carbon fiber
US6541113B1 (en) 1998-07-24 2003-04-01 Cabot Corporation Methods for preparing silica-coated carbon products
CN112624767A (en) * 2020-12-29 2021-04-09 黑龙江冠瓷科技有限公司 Preparation method of silicon carbide/silicon nitride composite fiber felt

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4948574A (en) * 1984-07-10 1990-08-14 Teijin Limited Method of manufacturing of pitch-base carbon fiber
JPS6461364A (en) * 1987-08-31 1989-03-08 Sumitomo Electric Industries Ceramics composite and production thereof
JPH01229874A (en) * 1988-03-02 1989-09-13 Agency Of Ind Science & Technol Woven and knitted cloth consisting of silicon-carbon conjugated fiber and production thereof
JPH0316422B2 (en) * 1988-03-02 1991-03-05 Kogyo Gijutsu Incho
US6541113B1 (en) 1998-07-24 2003-04-01 Cabot Corporation Methods for preparing silica-coated carbon products
CN112624767A (en) * 2020-12-29 2021-04-09 黑龙江冠瓷科技有限公司 Preparation method of silicon carbide/silicon nitride composite fiber felt

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