JPS6391206A - Preparation of inorganic fiber preform - Google Patents
Preparation of inorganic fiber preformInfo
- Publication number
- JPS6391206A JPS6391206A JP61237777A JP23777786A JPS6391206A JP S6391206 A JPS6391206 A JP S6391206A JP 61237777 A JP61237777 A JP 61237777A JP 23777786 A JP23777786 A JP 23777786A JP S6391206 A JPS6391206 A JP S6391206A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- alumina sol
- preform
- fibers
- binder
- 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
Links
- 239000012784 inorganic fiber Substances 0.000 title claims abstract description 18
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000011230 binding agent Substances 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000007666 vacuum forming Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 abstract description 24
- 238000000034 method Methods 0.000 abstract description 15
- 239000011159 matrix material Substances 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 4
- 239000000919 ceramic Substances 0.000 abstract description 3
- 239000003733 fiber-reinforced composite Substances 0.000 abstract description 3
- 239000003365 glass fiber Substances 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 5
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920002261 Corn starch Polymers 0.000 description 1
- 241000283986 Lepus Species 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 229940099112 cornstarch Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Reinforced Plastic Materials (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は無機繊維プリフォームの製造方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for manufacturing an inorganic fiber preform.
〈従来技術〉
従来各種短繊維を用いて繊維強化複合材な製造する有効
手段として、これら短繊維の集合プリフォームを所定の
モールド内にセットし、これに液状のマトリックス物質
を圧入する方法が知られている。この方法によって得ら
れる複合材の物性は強化骨材となる短繊維の組織構造、
とりわけ、プリフォームに含まれるバインダー等の繊維
以外の第三成分の混入量によって大きく左右され、バイ
ンダーの使用量を可及的に少ｊｉＫすることが値まれる
。<Prior art> Conventionally, as an effective means for manufacturing fiber-reinforced composite materials using various short fibers, a method has been known in which a preform assembled with these short fibers is set in a predetermined mold and a liquid matrix material is press-fitted into the preform. It is being The physical properties of the composite material obtained by this method are the structure of the short fibers that serve as the reinforcing aggregate,
In particular, it is greatly influenced by the amount of a third component other than fibers such as a binder contained in the preform, and it is important to reduce the amount of binder used as much as possible.
〈発明が解決しようとする問題点〉
しかしながら、従来、無機繊維プリフォームの製造につ
いては、構成繊維の種類や組成等が注目され、保形性付
与のために用いられるバインダーについては十分な検討
がなされていなか現状１ｃおる。<Problems to be solved by the invention> However, in the production of inorganic fiber preforms, conventionally, attention has been paid to the types and compositions of constituent fibers, and sufficient consideration has not been given to binders used to impart shape retention. Currently there are 1c of cases where nothing has been done.
一方、例えば、アルミナ繊維等の無機繊維よりなるブラ
ンケット、ボード等においては、アルミナゾル、シリカ
ゾルを始めとして種々のバインダーが提案されているが
、これらの成形加工品では、特に問題がないために例え
ば、繊維１００重量部当１）ｔｏ−ｂｏ重量部のバイン
ダーを強度向上のために使用している。従って、成形品
としては、同一であっても、マトリックスの強化骨材と
して用いられるプリフォームとブランケット、ボＩドと
は要求性状が基本的に異なり、プリフォーム等の成形技
術の思想、と）わけ、バインダーの便用に関する知識を
そのままプリフォーム製法に適用できない。On the other hand, various binders including alumina sol and silica sol have been proposed for blankets, boards, etc. made of inorganic fibers such as alumina fibers, but these binders do not have any particular problems, so for example, 1) to-bo weight part of binder per 100 weight parts of fibers is used to improve strength. Therefore, even though the molded products are the same, the required properties of the preform used as the reinforcing aggregate of the matrix and the blanket and void are fundamentally different, and the philosophy behind the molding technology of the preform etc. For this reason, knowledge regarding the convenience of binders cannot be directly applied to the preform manufacturing method.
く問題点を解決するための手段〉
そこで、本発明者等は、バインダーの使用量を少なくし
て無機繊維プリフォームを製造すべきとの要請に応える
べく鋭意検討した結果、ある特定物質をバインダーとし
て使用するならば、比較的少量の使用量であってもプリ
フォームとして十分な保形性が付与されることを見出し
本発明の完成に到った。Means for Solving the Problems> Therefore, as a result of intensive studies in response to the request for manufacturing inorganic fiber preforms with a reduced amount of binder, the present inventors have determined that a specific substance can be used as a binder. The present invention has been completed based on the discovery that when used as a preform, sufficient shape retention is imparted to the preform even with a relatively small amount used.
を解繊したのち結合剤と湿式深合し、次いで、所定形状
にｆ水成形又は真空成形してプリフォームを製造するに
当り、結合剤としてアルミナゾルを使用することを特徴
とする無機繊維プリフォームの製造方法に存する。An inorganic fiber preform characterized in that alumina sol is used as a binder in manufacturing the preform by defibrating it, wet-deepening it with a binder, and then water-forming or vacuum-forming it into a predetermined shape. It consists in the manufacturing method.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
本発明方法で用いられる無機繊維としては、アルミナ繊
維、セラミックスファイバー、ガラス繊維、炭素繊維等
が挙げられ、長繊維、短繊維は問わないが、好ましくは
、アルミナ繊維とセラミックスファイバーが用いられる
。アルミナ繊維としてはアルミナをりＯ（ｗｔ）１以上
含有し、これにＪ Ｏ（ｗｔ） Ｓ以下のシリカを含有
させたものが用いられる。このものは場合により更Ｋｊ
（ｖｔ）１以下の他の酸化物を含んでいることもある。Examples of the inorganic fibers used in the method of the present invention include alumina fibers, ceramic fibers, glass fibers, carbon fibers, etc., and it does not matter whether they are long fibers or short fibers, but alumina fibers and ceramic fibers are preferably used. As the alumina fiber, one containing alumina of O(wt) 1 or more and silica of J O(wt) S or less is used. This item may be changed depending on the situation.
(vt) 1 or less of other oxides may be included.
無機繊維は、通常集合体であるので、解繊処理して用い
られるが、解繊方法としては、公知の方法に従い、例え
ば必要に応じて予備裁断した後、１０〜ｉｏｏ倍量の水
と共にディシルバー等の装置を用いる方法でよい。Since inorganic fibers are usually aggregates, they are used after being defibrated. For defibration, for example, after pre-cutting if necessary, they are diluted with 10 to 100 times the amount of water. A method using a device such as silver may be used.
本発明方法は、解繊処理された無機繊維Ｋ。The method of the present invention uses defibrated inorganic fibers K.
バインダーとしてアルミナゾルを添加して成形すること
を骨子とする。The main idea is to add alumina sol as a binder and mold it.
アルミナゾルは、各種の方法で製造され各種のものが市
販されているが、いずれのアルミナゾルも使用し得る。Alumina sol is produced by various methods and various types are commercially available, and any alumina sol can be used.
アルミナゾルの使用量は、繊維に対する固着量として無
機繊維１００重量部轟ｐｏ、ｉ重量部以上であれば特に
制限はないが、好ましくは、Ｏ，ｊＸ、ｘ部以上とされ
、また本発明効果を十分発揮させるためＫは７０重量部
以下とされる。特に好ましい範囲は、７〜３重量部（い
ずれも固形換算値）である。The amount of alumina sol used is not particularly limited as long as it is at least 100 parts by weight of the inorganic fibers as the amount of alumina sol fixed to the fibers, but it is preferably at least O,jX,x parts, and also to achieve the effects of the present invention. In order to exhibit sufficient performance, K is set at 70 parts by weight or less. A particularly preferable range is 7 to 3 parts by weight (all values calculated on solid basis).
無機繊維とアルミナゾルとの混合は、湿式条件下で行わ
れるが、通常は、前記解繊処理工程にアルミナゾルを添
加して解繊処理に引続いて行われる。Mixing of the inorganic fibers and alumina sol is carried out under wet conditions, and is usually carried out subsequent to the defibration process by adding alumina sol to the defibration process.
また、本発明方法においては、所望によりアルミナゾル
と共にデンプン、コーンスターチ、メチ°ルセルロース
、ポリビニルアルコール、ポリアクリル酸などの水溶性
有機高分子を併用することもできる。プリフォームは、
通例、金属マトリックスの圧入の際にり００℃前後の温
度に予備加熱されるが、有機バインダーは、この加熱に
よって炭化消滅し、従って、複合材の物性に与える影響
は殆んどない。Further, in the method of the present invention, a water-soluble organic polymer such as starch, cornstarch, methylcellulose, polyvinyl alcohol, polyacrylic acid, etc. can be used together with the alumina sol, if desired. The preform is
Usually, the metal matrix is preheated to a temperature of around 00° C. when press-fitting the metal matrix, but the organic binder is carbonized and eliminated by this heating, and therefore has almost no effect on the physical properties of the composite material.
成形は、公知のｆ水成形又は真空成形によって行われ、
これＫよシ、余剰の水は除去され所定形状に成形される
。The molding is performed by known water molding or vacuum molding,
After this, excess water is removed and the product is molded into a predetermined shape.
こうして得られたプリフォームは、乾燥後、マトリック
ス物質を圧入して繊維強化複合材とされる。マトリック
ス物質としては、金属、合金、プラスチックなどが挙げ
られるが、本発明プリフォームは、特に、金属、合金用
に好ましい。この場合、圧入に先立ち、適宜の温度に加
熱して用いられる。After drying, the preform thus obtained is press-fitted with a matrix material to form a fiber-reinforced composite material. Examples of the matrix material include metals, alloys, and plastics, and the preform of the present invention is particularly preferred for use with metals and alloys. In this case, the material is heated to an appropriate temperature prior to press-fitting.
〈実施例〉 以下、本発明を実施例により更に詳細に説明する。<Example> Hereinafter, the present invention will be explained in more detail with reference to Examples.
Ａｌｔｏｓ ： ８１０ｍが７ａ：ａｒ（重量比）ノア
ルミナ繊維（直径３μ、長さｊｃＩＩＬ）をＳＯ重量倍
の水と共にディシルバーに供給して繊維長０．３〜０．
３ ’Ｘｌまで解繊処理した。Altos: 810m is 7a:ar (weight ratio) Noalumina fibers (diameter 3μ, length jcIIL) are supplied to the disilber with water twice the weight of SO, and the fiber length is 0.3 to 0.
It was defibrated to 3'Xl.
次いで、固形分濃度ｉｏ重量係の酢酸系アルξナゾルな
、２００重量部添加して引続き攪拌処理を行ったのち、
内径／コθ鬼の円筒金型に注型して上下面からＰ水し、
高さｌ−〇ｔに手押しＰ水成形した。尚、アルミナゾル
の固着量は２重ｉ１％（固形分換算）であった。Next, 200 parts by weight of acetic acid-based alinasol with a solid content concentration of io weight was added and the mixture was stirred.
Pour into a cylindrical mold with inner diameter/ko θ and pour water from the top and bottom.
Hand-pressed P water molding to a height of l-〇t. Incidentally, the amount of alumina sol fixed was 1% (in terms of solid content).
得られた成形体をｌＯｊ℃の乾燥機中で７０時間乾燥し
てプリフォームとしたのち、指圧で圧縮強度を評価した
ところ、十分な強度であった。The obtained molded body was dried in a dryer at 1Oj°C for 70 hours to form a preform, and the compressive strength was evaluated by finger pressure, and the strength was found to be sufficient.
なお、比較のために、アルミナシＡ−に代えてシリカゾ
ル（固形分濃度１０重゛量係）を用いた他は、同様にプ
リフォームを製造しくシリカゾルの固着量は一重量係）
、指圧による圧縮強度を評価したところ、著しくもろく
、直ちに崩壊し、プリフォームとしてはハンドリング上
不適なも゛のであった。For comparison, a preform was produced in the same manner, except that silica sol (solid content concentration 10% by weight) was used instead of aluminium A-, and the amount of silica sol fixed was 1% by weight).
When the compressive strength was evaluated by finger pressure, it was found to be extremely brittle and disintegrate immediately, making it unsuitable for handling as a preform.
因みに、アルミナゾルバインダーを用いたプリフォーム
と同程度の強度のプリフォームをシリカゾルバインダー
で得るためには、シリカゾル使用量はアルミナゾルの約
３倍量が必要であつた。Incidentally, in order to obtain a preform with a silica sol binder having the same strength as a preform using an alumina sol binder, it was necessary to use approximately three times the amount of silica sol as that of the alumina sol.
〈発明の効果〉
以上説明したように本発明釦よれば、繊維以外の第三成
分の混入量が極めて少ない無機繊維プリフォームを製造
することができ、従って、本発明は、繊維強化複合材の
分野に寄与するところ大である。<Effects of the Invention> As explained above, according to the button of the present invention, an inorganic fiber preform containing an extremely small amount of third components other than fibers can be manufactured. This will greatly contribute to the field.
出 願 人 三菱化成工業株式会社 代 理 人 弁理士 長谷用 − （ほか１名）Sender: Mitsubishi Chemical Industries, Ltd. Representative Patent Attorney Hase - (1 other person)
Claims (2)
し、次いで、所定形状にろ水成形又は真空成形してプリ
フオームを製造するに当り、結合剤としてアルミナゾル
を使用することを特徴とする無機繊維プリフオームの製
造方法。(1) Alumina sol is used as the binder when producing a preform by defibrating the inorganic fiber aggregate, wet-mixing it with a binder, and then draining or vacuum-forming it into a predetermined shape. A method for producing an inorganic fiber preform.
り０．５〜１０重量部（固形分換算値）であることを特
徴とする特許請求の範囲第１項記載の製造方法。(2) The manufacturing method according to claim 1, wherein the amount of alumina sol deposited is 0.5 to 10 parts by weight (solid content equivalent) per 100 parts by weight of inorganic fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61237777A JPS6391206A (en) | 1986-10-06 | 1986-10-06 | Preparation of inorganic fiber preform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61237777A JPS6391206A (en) | 1986-10-06 | 1986-10-06 | Preparation of inorganic fiber preform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6391206A true JPS6391206A (en) | 1988-04-21 |
Family
ID=17020273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61237777A Pending JPS6391206A (en) | 1986-10-06 | 1986-10-06 | Preparation of inorganic fiber preform |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6391206A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03218981A (en) * | 1990-01-23 | 1991-09-26 | Tomoegawa Paper Co Ltd | Sheet for roasting ceramics base plate |
| WO2012154000A3 (en) * | 2011-05-12 | 2013-01-24 | (주)엘지하우시스 | Glass fiber board and a production method therefor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60204660A (en) * | 1984-03-28 | 1985-10-16 | 東海カ−ボン株式会社 | Formation of whisker preform for composite material |
-
1986
- 1986-10-06 JP JP61237777A patent/JPS6391206A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60204660A (en) * | 1984-03-28 | 1985-10-16 | 東海カ−ボン株式会社 | Formation of whisker preform for composite material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03218981A (en) * | 1990-01-23 | 1991-09-26 | Tomoegawa Paper Co Ltd | Sheet for roasting ceramics base plate |
| JPH0627026B2 (en) * | 1990-01-23 | 1994-04-13 | 株式会社巴川製紙所 | Ceramic substrate firing sheet |
| WO2012154000A3 (en) * | 2011-05-12 | 2013-01-24 | (주)엘지하우시스 | Glass fiber board and a production method therefor |
| JP2014518950A (en) * | 2011-05-12 | 2014-08-07 | エルジー・ハウシス・リミテッド | Glass fiber board and manufacturing method thereof |
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