JPS59127751A - Prepreg material - Google Patents
Prepreg materialInfo
- Publication number
- JPS59127751A JPS59127751A JP249483A JP249483A JPS59127751A JP S59127751 A JPS59127751 A JP S59127751A JP 249483 A JP249483 A JP 249483A JP 249483 A JP249483 A JP 249483A JP S59127751 A JPS59127751 A JP S59127751A
- Authority
- JP
- Japan
- Prior art keywords
- prepreg
- release paper
- reinforcing fibers
- prepreg material
- scrim cloth
- 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
Landscapes
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Graft Or Block Polymers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明はプリプレグ材料に関し、さらに詳しくは、m維
強化プラスチックを成型する場合に使用するプリプレグ
材料に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a prepreg material, and more particularly to a prepreg material used in molding m-fiber reinforced plastics.
プリプレグ材料は、繊維強化プラスチック(以下、FR
Pという)を成型する場合の成型素材として使用される
ものである。The prepreg material is fiber reinforced plastic (hereinafter referred to as FR).
It is used as a molding material when molding P.
そのようなプリプレグ材料としては、従来、第1図<t
S略縦断面図)に示すような、いわゆる一方向性プリプ
レグ材料と呼ばれるものが知られている。すなわち、こ
のプリプレグ材料は、シート状のプリプレグ1と、この
プリプレグ1の一面に貼り合わせたスクリムクロス2と
、他面に貼り合わせた帯状離型紙3とを有している。上
記スクリムクロス2は、ガラス繊維などの補強繊維から
なっていて、吸湿などによってはほとんど寸法変化を生
じないものである。また、上記離型紙3は、成型の際に
は剥ぎ取られるものである。さらに、上記プリプレグ1
は、離型紙2の長手方向に互に並行かつシート状に配列
した補強繊維にB−ステージの熱硬化性樹脂を含浸して
なるものである。As such a prepreg material, conventionally, as shown in FIG.
A so-called unidirectional prepreg material is known, as shown in FIG. That is, this prepreg material has a sheet-like prepreg 1, a scrim cloth 2 bonded to one side of the prepreg 1, and a strip-shaped release paper 3 bonded to the other side. The scrim cloth 2 is made of reinforcing fibers such as glass fibers, and hardly undergoes dimensional changes due to moisture absorption or the like. Furthermore, the release paper 3 is to be peeled off during molding. Furthermore, the prepreg 1
is made by impregnating reinforcing fibers arranged parallel to each other in the longitudinal direction of the release paper 2 in the form of a sheet with a B-stage thermosetting resin.
しかしながら、上記プリプレグ材料は、吸湿による寸法
変化をほとんど生じないスルクリムクロスをプリプレグ
の一方の面のみに貼り合わせているので、離型紙が吸湿
した場合に、その伸びによって補強繊維の配列方向と直
交する方向、つまり離型紙の幅方向においてスクリムク
ロス側にカールするという欠点があった。また、上記の
ような、スクリムクロスの、いわゆる片面貼合せプリプ
レグを積層して平板を成型すると、その厚み方向中心に
対する補強繊維の配置が非対称になり、反りを発生覆る
という欠点もあった。すなわち、反りの発生を防止する
ためには、厚み方向中心に対して対称な位置には同じ種
類の補強繊維があることが必要で、もし対称位置にある
補強繊維の種類が異なっていると、加熱成型後冷却する
ときに、補強繊維の熱膨張係数の相異によって厚み方向
に非対称な応力分布を生じ、反りを発生するわけである
。もっとも、この反りは、偶数枚の片面貼合せプリプレ
グを、たとえばスクリムクロスが互に対向するように積
層すれば防止できる。しかしながら、そのような作業は
大変面倒であるはかりか、ミスを発生しやすく、また成
型するFRPの厚みの制約から奇数枚の積層で終えたい
場合も多々ある。However, in the prepreg material mentioned above, Surculim cloth, which hardly causes dimensional changes due to moisture absorption, is attached to only one side of the prepreg, so when the release paper absorbs moisture, its elongation causes it to cross orthogonally to the arrangement direction of the reinforcing fibers. There was a drawback that the release paper curled toward the scrim cloth in the width direction of the release paper. Furthermore, when a flat plate is formed by laminating so-called single-sided prepregs of scrim cloth as described above, the arrangement of the reinforcing fibers with respect to the center in the thickness direction becomes asymmetrical, which causes warping. In other words, in order to prevent the occurrence of warping, it is necessary that the same type of reinforcing fibers be present at symmetrical positions with respect to the center in the thickness direction; if the types of reinforcing fibers at symmetrical positions are different, When the reinforcing fibers are cooled after being heated, an asymmetrical stress distribution occurs in the thickness direction due to the difference in thermal expansion coefficients of the reinforcing fibers, causing warping. However, this warping can be prevented by laminating an even number of single-sided prepregs such that the scrim cloths face each other. However, such work is very troublesome, is prone to mistakes, and is often desired to be completed by laminating an odd number of FRP sheets due to constraints on the thickness of the FRP to be molded.
本発明の目的は、従来のプリプレグ材料の上記欠点を解
決し、カールの発生やFRPを成型した場合の反りの発
生を防止することができるプリプレグ材料を提供するに
ある。An object of the present invention is to provide a prepreg material that can solve the above-mentioned drawbacks of conventional prepreg materials and prevent the occurrence of curling and warping when FRP is molded.
上記目的゛を達成するための本発明は、シート状のプリ
プレグと、このプリプレグの両面に貼り合わせたスクリ
ムクロスとを有し、かつ前記プリプレグは、一方向に互
に並行かつシート状に配列した補強繊維にB−ステージ
(たとえば、「プラスチック工業辞典」、第107頁、
1973年9月25日、株式会社工業調査会刊)の熱硬
化性樹脂を含浸してなるプリプレグ材料を特徴どするも
のである。To achieve the above object, the present invention comprises a sheet-like prepreg and a scrim cloth bonded to both sides of the prepreg, and the prepregs are arranged parallel to each other in one direction in a sheet-like manner. B-stage reinforcing fibers (for example, "Plastic Industry Dictionary", p. 107,
It features a prepreg material impregnated with a thermosetting resin (September 25, 1973, published by Kogyo Kenkyukai Co., Ltd.).
本発明のプリプレグ材料の一実施例を説明するに、第2
図(概略縦断面図)において、プリプレグ材料は、シー
ト状のプリプレグ1ど、このプリプレグ1の両面に貼り
合わけたスクリムクロス2.4とからなる、スクリムク
ロスの、いわゆる両面貼合せプリプレグを、帯状の離型
紙3上に担持してなる。上記プリプレグ1は、互に並行
かつシー1〜状に配列した補強繊維にB−ステージの熱
硬化性樹脂(図示せず)を含浸してなり、かつ上記補強
繊維は、その繊維軸が離型紙3の長手方向く紙面に対し
て垂直の方向)になるように配列されている。もっとも
、この配列方向は任意であってよく、たとえは、離型紙
3の長手方向に対して斜めに配列されていてもよい。To explain one embodiment of the prepreg material of the present invention, the second
In the figure (schematic vertical cross-sectional view), the prepreg material is a so-called double-sided prepreg of scrim cloth, which consists of a sheet-like prepreg 1 and a scrim cloth 2.4 laminated on both sides of this prepreg 1. It is supported on a band-shaped release paper 3. The prepreg 1 is made by impregnating B-stage thermosetting resin (not shown) into reinforcing fibers arranged parallel to each other in a sea pattern, and the reinforcing fibers have fiber axes that are aligned with release paper. 3 (in the longitudinal direction (perpendicular to the plane of the paper)). However, this arrangement direction may be arbitrary, and for example, the release paper 3 may be arranged obliquely to the longitudinal direction of the release paper 3.
上記離型紙は、プリプレグ材料の取り扱いを容易に覆る
もので、FRPを成型する際には剥ぎ取られるものであ
る。そして、離型紙は、たとえば、厚み0.05〜Q、
2mm程度のクラフト紙、ロール組、グラシン紙などの
紙の両面に、クレー、澱粉、ボリエヂレン、ポリビニル
アルコールなとの目止め剤の塗布層を設け、さらにその
各塗布層の上にシリコーン系または非シリコーン系の離
型剤、好ましくは゛ポリジメチルシロキサンとポリジメ
チルハイドロジエンシロキサンとの綜合反応型または付
加反応型シリコーンからなる前型剤を塗布したものであ
る。もつとも、本発明においては、プリプレグの両面に
スクリムクロスを貼り合わせ−Cいるので、離型紙が必
ず必要であるわけではない。The above-mentioned release paper covers the prepreg material for easy handling and is peeled off when molding FRP. The release paper has a thickness of, for example, 0.05 to Q,
A coating layer of a filler such as clay, starch, polyethylene, or polyvinyl alcohol is applied to both sides of paper such as kraft paper, roll paper, glassine paper, etc. of approximately 2 mm, and a silicone-based or non-silicone filler is applied on each coating layer. A silicone-based mold release agent, preferably a preform agent made of a synthetic reaction type or addition reaction type silicone of polydimethylsiloxane and polydimethylhydrodiene siloxane, is applied. However, in the present invention, since scrim cloth is bonded to both sides of the prepreg, release paper is not always necessary.
プリプレグは、0.02〜1 mm、好ましくは0゜0
3〜0.5nv程度の厚みを有し、30〜80重量%、
好ましくは40〜70重里%の補強繊維を含んでいる。The prepreg has a thickness of 0.02 to 1 mm, preferably 0°0
It has a thickness of about 3 to 0.5 nv, and 30 to 80% by weight,
It preferably contains 40 to 70% reinforcing fibers.
補強繊維は、炭素繊肩1、カラス繊維、有機高弾性繊維
(たとえば、ポリアラミド繊維など)等の高強度、高弾
性繊維からなる。これらの補強繊?ffは、ただ1種類
のものを使用覆ることであってもよいし、たとえば炭素
繊維とガラス繊維、炭素繊維と有機高弾性繊維といった
ように、2種類以上の補強繊維を交互に規則性をもって
、または不規則に並べてもよい。The reinforcing fibers are made of high-strength, high-elasticity fibers such as carbon fiber shoulder 1, glass fibers, organic high-elasticity fibers (eg, polyaramid fibers, etc.). These reinforcing fibers? ff may be made by using only one type of reinforcing fiber, or by alternately and regularly using two or more types of reinforcing fibers, such as carbon fiber and glass fiber, or carbon fiber and organic high modulus fiber. Or they can be arranged irregularly.
熱硬化性樹脂は、周知のrRPffl樹脂、たとえばエ
ポキシ樹脂、不飽和ポリエステル樹脂、フェノール樹脂
、ポリイミド樹脂などである。The thermosetting resin is a well-known rRPffl resin, such as an epoxy resin, an unsaturated polyester resin, a phenolic resin, or a polyimide resin.
スクリムクロスは、上述した炭素繊維、カラス繊維、有
機高弾性繊維などを平織まl〔は朱子織してなるもので
ある。炭素繊維やカラス繊維からなるものである揚台に
は、厚み0.02〜0.1511m、好ましくは0.0
3〜0.1mm、目イv110〜90Q/n12、好ま
しくは20〜60g/ln2であり、カラス繊維からな
るものである場合には、厚み0゜01〜0.1mm、好
ましくは0.02〜0.05mm、目イt 10〜80
g/IIビ、好ましくは15−4OQ / IIIP
である。The scrim cloth is made by plain weaving or satin weaving the above-mentioned carbon fibers, glass fibers, organic high-elastic fibers, and the like. The lifting platform made of carbon fiber or glass fiber has a thickness of 0.02 to 0.1511 m, preferably 0.0 m.
3 to 0.1 mm, eye value v110 to 90 Q/n12, preferably 20 to 60 g/ln2, and when it is made of glass fiber, the thickness is 0°01 to 0.1 mm, preferably 0.02 to 0.05mm, 10~80
g/II Bi, preferably 15-4OQ/IIIP
It is.
本発明のプリプレグ材料は、いろいろな方法によって製
造することができるが、次にその好ましい一例を承り−
0
すなわち、まず第1図に示したのと同様の一方向性プリ
プレグ材料を準備し、そのスクリムクロスの上に離型紙
を重ね合わせ、50へ・150℃の温度で加熱しながら
プレスロールに通して貼り合わせる。The prepreg material of the present invention can be produced by various methods, but a preferred example thereof will be described below.
0 That is, first, prepare a unidirectional prepreg material similar to that shown in Figure 1, layer release paper on top of the scrim cloth, and pass it through a press roll while heating it at a temperature of 50°C/150°C. Paste together.
次に、上記工程で貼り合わせた離型紙とは反対側の面の
離型紙を引き剥がし、その上にスクリムクロスを重ね合
わせ、さらにその上に離型紙を重ね合わせ、上記と同様
の条件でプレスロールに通す。Next, peel off the release paper on the side opposite to the release paper pasted in the above process, overlay the scrim cloth on top of it, then overlay the release paper on top of that, and press under the same conditions as above. Pass it through the roll.
次に、双方またはいずれか片方の離型紙を剥がし、本発
明のプリプレグ材料を得る。Next, both or one of the release papers is peeled off to obtain the prepreg material of the present invention.
上記において、一方向性プリプレグtJ料の製造ば、従
来公知のいかなる方法によってもよいが、B−ステージ
の熱硬化性樹脂を塗布した離型紙上に補強繊維のス1−
ランド(単糸数数百〜数万木)を一方向に互に並行かつ
シート状に並べ、その上から、同様にB−ステージの熱
硬化性樹脂を塗布した別の離型紙を重ね合わけ、80〜
180’C程度の温度で加熱しながらプレスロールに通
して補強繊維の押拡げと樹脂の含浸を行い、冷却した後
いずれか一方の離型紙を剥かし、その上にスクリムクロ
スを重ね合わせ、さらにその」二に離型紙を重ね合わせ
、50〜150℃の温度で加熱しながらプレスロールに
通して貼り合わせた後、スクリムクロス側の離型紙を剥
ぎ取るようにするのが好ましい。In the above, the unidirectional prepreg tJ material may be manufactured by any conventionally known method, but reinforcing fibers are placed on a release paper coated with a B-stage thermosetting resin.
Lands (single yarns in the hundreds to tens of thousands of pieces) are arranged parallel to each other in one direction in a sheet form, and on top of that, another release paper coated with a B-stage thermosetting resin is overlaid. ~
The reinforcing fibers are expanded and impregnated with resin by passing through a press roll while heating at a temperature of about 180'C, and after cooling, one of the release papers is peeled off, and a scrim cloth is placed on top of it, and then It is preferable to overlay a release paper on the second layer and pass it through a press roll while heating at a temperature of 50 to 150° C. to bond them together, and then peel off the release paper on the scrim cloth side.
上記実施例において、離型紙を使用する場合、両面貼合
せプリプレグは担持していない耳部に品種表示をしてお
くと、品種の識別が容易になり、品種混合を防止するこ
とができるようになるので好ましい。In the above example, when using release paper, if the type of double-sided prepreg is labeled on the unsupported edge, it will be easier to identify the type and prevent mix-up of types. Therefore, it is preferable.
以上説明しICように、本発明のプリプレグ+J 11
3+は、プリプレグの両面にスクリムクロスを貼り合わ
せているからして、厚み方向の応力か一様にかかり、カ
ールの発生を防止することができる。また、本発明のプ
リプレグ(A料は、[RPの成型に際して表裏の区別な
く積層しても、厚み方向中心に対して対称の位置にはい
つも同じ秤類の補強繊訂1が存在することになり、FR
Pの反りを防止することができる。したがってまた、表
裏の区別を行いながら積層するというわずられしさから
解放され、成型作業の省力化が可能になる。As explained above and IC, the prepreg +J 11 of the present invention
3+ has scrim cloth bonded to both sides of the prepreg, so stress is applied uniformly in the thickness direction and curling can be prevented. In addition, even if the prepreg (material A) of the present invention is laminated with no distinction between the front and back sides during the molding of RP, the same reinforcement fibers 1 are always present at symmetrical positions with respect to the center in the thickness direction. Nari, FR
Warping of P can be prevented. Therefore, it is also possible to avoid the trouble of laminating the sheets while distinguishing between the front and back sides, and it becomes possible to save labor in the molding operation.
本発明のプリプレグ材料は、いろいろな用途のFRPを
成型づる場合に使用することができるが、平板、それも
特に薄い平板を成型する場合や、!〔とえばスキー板や
板ばねなどの板状体の成型において単独で、または他の
材料と組み合わせて使用するような場合に好適である。The prepreg material of the present invention can be used when molding FRP for various purposes, but it can also be used when molding flat plates, especially thin flat plates. [For example, it is suitable for use alone or in combination with other materials in molding plate-shaped bodies such as skis and leaf springs.
第1図は従来のプリプレグ材料を示す概略縦断面図、第
2図は本発明のプリプレグ材料の一実施例を示す概略縦
断面図゛である。
1ニブリブレグ
2.4ニスクリムクロス
3:離型紙FIG. 1 is a schematic longitudinal sectional view showing a conventional prepreg material, and FIG. 2 is a schematic longitudinal sectional view showing an embodiment of the prepreg material of the present invention. 1 Niblib leg 2.4 Varnish scrim cloth 3: Release paper
Claims (1)
り合わせたスクリムクロスとを有し、かつ前記プリプレ
グは、一方向に互に並行かつシート状に配列した補強繊
維にB−ステージの熱硬化性樹脂を含浸してなることを
特徴とするプリプレグ材料。The prepreg has a sheet-like prepreg and a scrim cloth attached to both sides of the prepreg, and the prepreg has reinforcing fibers arranged parallel to each other in a sheet shape in one direction, and a B-stage thermosetting resin. A prepreg material characterized by being impregnated with resin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP249483A JPS59127751A (en) | 1983-01-11 | 1983-01-11 | Prepreg material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP249483A JPS59127751A (en) | 1983-01-11 | 1983-01-11 | Prepreg material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59127751A true JPS59127751A (en) | 1984-07-23 |
JPS6411458B2 JPS6411458B2 (en) | 1989-02-23 |
Family
ID=11530905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP249483A Granted JPS59127751A (en) | 1983-01-11 | 1983-01-11 | Prepreg material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59127751A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006307001A (en) * | 2005-04-28 | 2006-11-09 | Toray Ind Inc | Pellet material for injection molding and its manufacturing method |
JP2010229238A (en) * | 2009-03-26 | 2010-10-14 | Mitsubishi Plastics Inc | Carbon fiber-reinforced resin sheet, and roll-wound rolled body thereof |
JP2014058136A (en) * | 2012-09-19 | 2014-04-03 | Sumitomo Bakelite Co Ltd | Manufacturing method of prepreg and manufacturing device of prepreg |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5122507A (en) * | 1974-08-08 | 1976-02-23 | Shoji Nakayama | SUITOSAI BAIHO |
JPS51102997A (en) * | 1975-01-16 | 1976-09-10 | Nippon Carbon Co Ltd | TSURIZAO |
JPS548710A (en) * | 1977-06-17 | 1979-01-23 | Mitsuharu Sakakida | Production of cancer control agent |
JPS5418885A (en) * | 1977-07-14 | 1979-02-13 | Fujitsu Ltd | Laminate sheet |
JPS5540424A (en) * | 1978-09-14 | 1980-03-21 | Canon Inc | Processor camera |
-
1983
- 1983-01-11 JP JP249483A patent/JPS59127751A/en active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5122507A (en) * | 1974-08-08 | 1976-02-23 | Shoji Nakayama | SUITOSAI BAIHO |
JPS51102997A (en) * | 1975-01-16 | 1976-09-10 | Nippon Carbon Co Ltd | TSURIZAO |
JPS548710A (en) * | 1977-06-17 | 1979-01-23 | Mitsuharu Sakakida | Production of cancer control agent |
JPS5418885A (en) * | 1977-07-14 | 1979-02-13 | Fujitsu Ltd | Laminate sheet |
JPS5540424A (en) * | 1978-09-14 | 1980-03-21 | Canon Inc | Processor camera |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006307001A (en) * | 2005-04-28 | 2006-11-09 | Toray Ind Inc | Pellet material for injection molding and its manufacturing method |
JP2010229238A (en) * | 2009-03-26 | 2010-10-14 | Mitsubishi Plastics Inc | Carbon fiber-reinforced resin sheet, and roll-wound rolled body thereof |
JP2014058136A (en) * | 2012-09-19 | 2014-04-03 | Sumitomo Bakelite Co Ltd | Manufacturing method of prepreg and manufacturing device of prepreg |
Also Published As
Publication number | Publication date |
---|---|
JPS6411458B2 (en) | 1989-02-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3255875A (en) | Composite reinforced resin sheet | |
JPS59127751A (en) | Prepreg material | |
KR100228882B1 (en) | Heat-resisting cushion material and method for producing the same | |
JP2778347B2 (en) | Cushion material for laminate molding | |
US5158827A (en) | Matt film with a rough surface | |
JP3363599B2 (en) | High strength composite paper | |
JPH06170847A (en) | Production of prepreg | |
JPS59114046A (en) | Prepreg material | |
KR890003571B1 (en) | Manufacturing process of orientated fiber reinforced | |
JPS5857935A (en) | Laminated board | |
JP2001310344A (en) | Method for manufacturing laminated sheet | |
JPH0427189A (en) | Printed wiring board | |
JPS59159332A (en) | Prepreg material and manufacture thereof | |
JPH09130042A (en) | Manufacture of multilayer printed wiring board | |
JP2006192572A (en) | Prepreg manufacturing apparatus | |
JPH06210754A (en) | Manufacture of single-sided copper-clad laminate | |
JPH0263825A (en) | Mold releasing film for laminated plate made of thermosetting resin | |
JPH1128733A (en) | Carrier plate for manufacturing laminate | |
JPS59164133A (en) | Prepreg material | |
JPH0516166A (en) | Manufacture of single surface copper clad laminated sheet | |
JPH05111916A (en) | Manufacture of laminate | |
JPH02235630A (en) | Preparation of laminated sheet | |
JPH072389B2 (en) | Laminated board for printed wiring board | |
JPH0715103A (en) | Manufacture of one-side copper-clad laminate | |
JPS60171107A (en) | Preparing apparatus of prepreg |