JPS61176633A - Composite prepreg - Google Patents
Composite prepregInfo
- Publication number
- JPS61176633A JPS61176633A JP1752785A JP1752785A JPS61176633A JP S61176633 A JPS61176633 A JP S61176633A JP 1752785 A JP1752785 A JP 1752785A JP 1752785 A JP1752785 A JP 1752785A JP S61176633 A JPS61176633 A JP S61176633A
- Authority
- JP
- Japan
- Prior art keywords
- prepreg
- paper
- short fibers
- fibers
- unidirectional
- 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.)
- Granted
Links
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は繊維強化プラスチックス製造に用いられる新規
なプリプレグの構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a novel prepreg structure used in the production of fiber-reinforced plastics.
一方向に補強繊維が配向したいわゆる一方向グリプレグ
はプリプレグの内代表的なものであ夛、成型品ＶｃｘＡ
生する主応力の方向と補強繊維の配向方向と一致させて
使用されるのが普通であるが、該方向と直交する方向に
も何がしかの応力が発生する場合が多い。例えばパイプ
状物の曲けに於てはパイプの長手方向に発生する主応力
とパイプの周方向に発生する応力とがるる。The so-called unidirectional grippreg, in which reinforcing fibers are oriented in one direction, is a typical type of prepreg, and is a molded product VcxA.
Generally, the direction of the generated principal stress is aligned with the orientation direction of the reinforcing fibers, but in many cases some stress is also generated in a direction perpendicular to this direction. For example, when bending a pipe-shaped object, there is a principal stress occurring in the longitudinal direction of the pipe and a stress occurring in the circumferential direction of the pipe.
この周方向応力は主応力に対して、応力レベルの低い応
力でありこの補強のためには、従来薄手のガラスクロス
プリプレグないし薄手の一方向プリプレグを９０°横層
した複合された９００補強プリプレグが用いられて来た
。This circumferential stress has a low stress level compared to the principal stress, and for this reinforcement, conventional 900 reinforcing prepreg, which is a composite of thin glass cloth prepreg or thin unidirectional prepreg layered at 90 degrees, is used. It has been used.
この様な従来の複合された９０°補強プリプレグに於て
は次の様な問題がある。即ち（ｉ） カラスクロスプ
リプレグにより一方向プリプレグを補強した場合９０°
補強すべきガラスクロスプリプレグと主応力を分担する
一方向ブリプレグの内在する応力が一致しない場合その
貼合された複合プリプレグ全放置した時、一方向プリプ
レグとガラスクロスプリプレグの剥離現象を生じプリプ
レグとしての商品価値を減する。また、ガラスクロスプ
リプレグが極薄手の場合目ずれ等を生じ、クロスの製造
及び一方向グロブレグとの貼合せに於て、厳密に品質コ
ントロールする必要がある等の欠点がある。Such conventional composite 90° reinforced prepregs have the following problems. That is, (i) 90° when unidirectional prepreg is reinforced with crow cloth prepreg.
If the inherent stress of the glass cloth prepreg to be reinforced and the unidirectional bripreg that shares the main stress do not match, when the bonded composite prepreg is left alone, the unidirectional prepreg and the glass cloth prepreg will peel off, resulting in a failure as a prepreg. Reduce product value. In addition, when the glass cloth prepreg is extremely thin, there are drawbacks such as misalignment, etc., and the need for strict quality control in manufacturing the cloth and laminating it with the one-way globreg.
（２）薄手の一方向プリプレグを主応力を分担する一方
向プリプレグに貼合せる時には両プリプレグの剥離は生
じないがこの複合グリプレグの第一の問題は薄手の一方
向グリプレグを得ることが技術的経揖的に困嬢なことで
るる。(2) When a thin unidirectional prepreg is laminated to a unidirectional prepreg that shares the principal stress, separation of both prepregs does not occur, but the first problem with this composite gripreg is that it is difficult to obtain a thin unidirectional gripreg. That's a really embarrassing thing to do.
また第２の問題は該複合プリプレグを製作するに際し９
０°補強すべき薄手の一方向グリプレグを主応力を分担
する一方向プリプレグの巾に応じて切断しこれｔ−９０
°回転させて両プ刊プレグを貼合せる作業を必要とし、
経済的な問題が存在することである。The second problem is when manufacturing the composite prepreg.
The thin unidirectional prepreg to be reinforced at 0° is cut according to the width of the unidirectional prepreg that shares the main stress.
°Requires work to rotate and paste both printed pregs,
There is an economic problem.
本発明は、従来の９００補強されたグリプレグの欠点全
解決する新規な複合プリプレグにある。The present invention consists in a novel composite prepreg that overcomes all of the shortcomings of conventional 900 reinforced grippregs.
本発明の要旨は、プリプレグの長手方向に引揃えられた
補強繊維を有するグリプレグ（ａ）及び（ｉ）該補強繊
維に対して交叉する方向にｔｈぼ配向された短繊維及び
（ｉ１）該短繊維と半行及び直交する部位を有する短繊
維とより成る紙又はこれに樹脂含浸した紙グリプレグ（
ｉ）） ’に積層した複合グリプレグにある。The gist of the present invention is to provide (a) a grippreg having reinforcing fibers aligned in the longitudinal direction of the prepreg; (i) short fibers oriented approximately th in a direction crossing the reinforcing fibers; Paper made of short fibers with semi-linear and orthogonal parts, or paper Gripreg (paper made of resin-impregnated paper)
i)) in a composite glypreg laminated to '.
このように本兄明の骨子は、主応力を分担すべき一方向
プリプレグと該グリプレグの補強繊維の配向方向に対し
て、交叉する方向にほゞ配向された短繊維、及び該短繊
維と平行及び直交する部位を有する短繊維とより成る紙
又はこれに樹脂を含浸した紙プリプレグを積層するもの
である。In this way, the gist of the present invention is to provide a unidirectional prepreg that should share the principal stress, short fibers that are oriented in a direction that is almost perpendicular to the orientation direction of the reinforcing fibers of the prepreg, and short fibers that are parallel to the short fibers. and short fibers having orthogonal sections, or paper prepreg impregnated with resin is laminated.
以下本発明について詳細に説明する。The present invention will be explained in detail below.
第１図は本＠明によって得られる複合グリプレグの構造
を示したもので、（イ）は平面図、（ロ）は（イ）に於
ける八−Ｎ断面金示す断面図である。第１図に於て一方
向に引揃えられた補強繊維（ｉ）はマトリックス樹脂に
よシ仮固定され、一方向プリプレグ（２）全形成する。FIG. 1 shows the structure of a composite grip preg obtained by this method, in which (a) is a plan view and (b) is a sectional view showing the 8-N cross section in (a). The reinforcing fibers (i) aligned in one direction in FIG. 1 are temporarily fixed in a matrix resin to form a unidirectional prepreg (2).
この一方向プリプレグ（２）に積層された構造としては
ソ一方向に配向された短繊維（３）と該短繊維（３）と
平行及び直交する部位を有する短繊維（４）とから成る
紙（５）又はこの紙（５）に樹脂を含浸した紙プリプレ
グが存在する。The structure laminated on this unidirectional prepreg (2) is a paper consisting of short fibers (3) oriented in one direction and short fibers (4) having portions parallel and perpendicular to the short fibers (3). (5) Or there is a paper prepreg in which this paper (5) is impregnated with a resin.
この時はソ一方向に配向された短繊維（３）は一方向プ
リプレグ（２）全形成する補強繊維（ｉ）と交叉好まし
くは直交する方向におかれる。上記に述べた紙（５）に
は特殊な形態を有する短繊維（４）を含むことにより、
紙（５）は安定な形態、強［１示し、一方向グリプレグ
（２）との積層が容易となる利点がある。At this time, the short fibers (3) oriented in one direction are placed in a direction that is perpendicular to, or preferably perpendicular to, the reinforcing fibers (i) that form the entire unidirectional prepreg (2). By including short fibers (4) having a special shape in the paper (5) mentioned above,
The paper (5) has the advantage of having a stable form, a strong [1] property, and easy lamination with the unidirectional grippreg (2).
一方向プリプレグ（２）と紙（５）の積層は一方向ブリ
プレグ（２）に含まれるマトリックス樹脂により接着す
ることも出来るし予め該紙（５）に樹脂を含浸せしめた
紙プリプレグを一方向プリプレグ（２）に積層して接着
してもよい。The lamination of the unidirectional prepreg (2) and the paper (5) can be bonded together using a matrix resin contained in the unidirectional prepreg (2), or the paper prepreg (5) can be pre-impregnated with resin to form a unidirectional prepreg. (2) may be laminated and bonded.
本発明に於て用いられる一方向グリグレグ（２）及び紙
（５）又は紙プリプレグの目的は特に限定するものでは
ないが、この積層されたプリプレグがパイプ用途等に用
いられる場合には、一方向プリプレグの愼維童に対しわ
ずかの童で９０゜方向の補強効果は十分に得られる。勿
論補強効果は紙（５）に用いられる短繊維の物怪により
変化することは当然である。Although the purpose of the unidirectional grid (2) and paper (5) or paper prepreg used in the present invention is not particularly limited, when this laminated prepreg is used for pipes etc. A sufficient reinforcing effect in the 90° direction can be obtained with only a small amount of reinforcement compared to the prepreg. Of course, the reinforcing effect varies depending on the nature of the short fibers used in the paper (5).
尚本発明の短繊維と平行及び直交する部位を有する短繊
維とよシなろ紙は次の方法によって得られる。短繊維を
数慢含む分散液全回転するメツシュドラムの内側に分散
液の吐出口をトラバースさせながら吐出流に乱流金主せ
しめ、ドラム回転数全比較的低速にして吐出させ、メツ
シュドラムの回転により分散液は遠心力によりメツシュ
ドラムの外側に除去されドラムの内側にドラムの周方向
に配向した繊維が紙状となって得られる。あるいは回転
する円盤の中心に短繊維を含む分散液を吐出し円盤の周
囲に分散液を飛散させる。この飛散した分散液を円盤を
含む平面と交叉して移動するメツシュ上に採取する時、
メツシュ上に得られる。A filter paper similar to the short fibers of the present invention having portions parallel and perpendicular to the short fibers can be obtained by the following method. A dispersion containing several short fibers is traversed through the discharge port of the dispersion inside a mesh drum that rotates at full speed to create turbulence in the discharge flow, and the drum is rotated at a relatively low speed to be discharged and dispersed by the rotation of the mesh drum. The liquid is removed to the outside of the mesh drum by centrifugal force, and paper-like fibers are obtained inside the drum that are oriented in the circumferential direction of the drum. Alternatively, a dispersion containing short fibers is discharged at the center of a rotating disk and the dispersion is scattered around the disk. When collecting this scattered dispersion onto a mesh that moves across the plane containing the disk,
Obtained on mesh.
本発明の内容、効果を実施例により、さらに説明する。 The contents and effects of the present invention will be further explained with reference to Examples.
実施例１
長手方向に対しほぼ９０°に配向した繊維長１０１を有
する炭素繊維短繊維（弾性率２４ＴＯＮ／ｍ＋” ）
９８％と、該短繊維と直交及び平行な部位を有する同種
の短繊維２％から成る１０？／ｍ”の紙を２２０ ？／
ｒｎ”の目付を有する炭素繊維一方向エポキシプリプレ
グ（樹脂瀘＝４０重量パーセント、炭素繊維物性は前記
に同じ）に相互の繊維配向が直交する様に積層したのち
熱カレンダーロールで圧着し両者を接合した。Example 1 Short carbon fiber fibers having a fiber length of 101 oriented at approximately 90° with respect to the longitudinal direction (modulus of elasticity 24 TON/m+”)
98% and 2% of the same type of short fibers having sections perpendicular and parallel to the short fibers. /m” paper 220?/
Carbon fiber unidirectional epoxy prepreg (resin filter = 40% by weight, carbon fiber physical properties are the same as above) having a basis weight of "rn" is laminated so that the mutual fiber orientations are perpendicular to each other, and then the two are bonded by pressing with a hot calendar roll. did.
本発明の工程に於て特殊な形態の繊維金倉んでいるため
積層、ロール圧着は極めて容易であった。In the process of the present invention, since the fibers are in a special form, lamination and roll pressure bonding are extremely easy.
この複合プリプレグによりパイプをマンドレル法で作成
した時、従来９０°補強に用いていた２ ５ ？／ｍ”
のガ、ラススクリムを使用した時に比べ、９０°補強成
分の剥れは皆無で必ジ、また低重量の補強成分であるに
かかわらずパイプの曲げ残置は同等のものであった。When pipes were made from this composite prepreg using the mandrel method, the 2 5 ? /m”
Compared to the case when using the same glass and lath scrim, there was absolutely no peeling of the 90° reinforcing component, and the remaining bending of the pipe was the same despite the low weight of the reinforcing component.
実施例２
実施例１で用いた紙に６．７ ？ ／ ｇ”のエポキシ
樹脂フィルムを含浸し紙エポキシズリプレグを作成した
。Example 2 6.7 on the paper used in Example 1? / g” of epoxy resin film was impregnated to prepare a paper epoxy slurry preg.
この紙エポキシプリプレグを実施例１で用いた一方向エ
ボキシプリグレグに積層し熱圧看した。この実施例の方
法に於ては実施ψす１より圧着速Ｉ３ｔは早くすること
が出来たが、浅合グリプレグの物性及び成型品の物性は
実施例１で得られた結果と同一の満足されるものでめっ
た。This paper epoxy prepreg was laminated onto the unidirectional epoxy prepreg used in Example 1 and subjected to hot pressing. In the method of this example, the crimping speed I3t could be made faster than in Example 1, but the physical properties of the shallow grip preg and the physical properties of the molded product were the same as those obtained in Example 1. I ran into a lot of stuff.
本発明の複合プリプレグは極めて容易に製造でき、また
その構造は複合プリプレグの形態安定性及び成形品の９
０°補強にとって有益な構造である。The composite prepreg of the present invention can be produced extremely easily, and its structure improves the morphological stability of the composite prepreg and the nine-dimensional stability of the molded product.
This structure is useful for 0° reinforcement.
第１図（イ）は本発明の複合プリプレグの平面図、（ロ
）は（イ）Ａ −Ａ’断面に於けるｖｆｒ而図面ある。FIG. 1(a) is a plan view of the composite prepreg of the present invention, and FIG. 1(b) is a vfr diagram at the A-A' cross section.
Claims (1)
するプリプレグ（ａ）及び（ｉ）該補強繊維に対して交
叉する方向にほゞ配向された短繊維及び（ｉｉ）該短繊
維と平行及び直交する部位を有する短繊維とより成る紙
又はこれに樹脂含浸した紙プリプレグ（ｂ）を積層した
ことを特徴とする複合プリプレグ。1. A prepreg (a) having reinforcing fibers aligned in the longitudinal direction of the prepreg, (i) short fibers oriented substantially in a direction crossing the reinforcing fibers, and (ii) parallel to and parallel to the short fibers. A composite prepreg characterized in that a paper made of short fibers having orthogonal portions or a paper prepreg (b) impregnated with a resin is laminated thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1752785A JPS61176633A (en) | 1985-01-31 | 1985-01-31 | Composite prepreg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1752785A JPS61176633A (en) | 1985-01-31 | 1985-01-31 | Composite prepreg |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61176633A true JPS61176633A (en) | 1986-08-08 |
| JPH034010B2 JPH034010B2 (en) | 1991-01-22 |
Family
ID=11946394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1752785A Granted JPS61176633A (en) | 1985-01-31 | 1985-01-31 | Composite prepreg |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61176633A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013099741A1 (en) * | 2011-12-26 | 2013-07-04 | 東レ株式会社 | Carbon fiber base, prepreg, and carbon-fiber-reinforced composite material |
| US8518211B2 (en) | 2002-12-20 | 2013-08-27 | Lam Research Corporation | System and method for controlling plasma with an adjustable coupling to ground circuit |
-
1985
- 1985-01-31 JP JP1752785A patent/JPS61176633A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8518211B2 (en) | 2002-12-20 | 2013-08-27 | Lam Research Corporation | System and method for controlling plasma with an adjustable coupling to ground circuit |
| WO2013099741A1 (en) * | 2011-12-26 | 2013-07-04 | 東レ株式会社 | Carbon fiber base, prepreg, and carbon-fiber-reinforced composite material |
| JPWO2013099741A1 (en) * | 2011-12-26 | 2015-05-07 | 東レ株式会社 | Carbon fiber substrate, prepreg and carbon fiber reinforced composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH034010B2 (en) | 1991-01-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |