JPH0618905B2 - Scrim cloth pasted prepreg - Google Patents
Scrim cloth pasted prepregInfo
- Publication number
- JPH0618905B2 JPH0618905B2 JP59017538A JP1753884A JPH0618905B2 JP H0618905 B2 JPH0618905 B2 JP H0618905B2 JP 59017538 A JP59017538 A JP 59017538A JP 1753884 A JP1753884 A JP 1753884A JP H0618905 B2 JPH0618905 B2 JP H0618905B2
- Authority
- JP
- Japan
- Prior art keywords
- scrim cloth
- prepreg
- aligned
- scrim
- carbon fibers
- 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
- 239000004744 fabric Substances 0.000 title claims description 29
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 24
- 239000004917 carbon fiber Substances 0.000 claims description 24
- 238000009941 weaving Methods 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 239000003365 glass fiber Substances 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 8
- 229920001187 thermosetting polymer Polymers 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 3
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 11
- 239000000123 paper Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000012783 reinforcing fiber Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011086 glassine Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Reinforced Plastic Materials (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 この発明は、炭素繊維強化プラスチック（ＣＦＲＰ）を
成形するときに使用するスクリムクロス貼り合せプリプ
レグに関する。TECHNICAL FIELD The present invention relates to a scrim cloth-bonded prepreg used for molding carbon fiber reinforced plastic (CFRP).
従来の技術 従来、スクリムクロス貼り合せプリプレグとして、一方
向に互いに並行かつシート状に引き揃えた炭素繊維にＢ
ステージの熱硬化性樹脂が含浸されている一方向性プリ
プレグの一面にガラス繊維からなるスクリムクロスを貼
り合わせてなるものが知られている。炭素繊維やガラス
繊維はともに樹脂の補強繊維として作用し、スクリムク
ロスは、成形時に炭素繊維の配列が乱れるのを防止する
とともに、炭素繊維の、主として引き揃え方向と直交す
る方向に補強効果を与えている。2. Description of the Related Art Conventionally, as a scrim cloth pasted prepreg, carbon fibers B which are parallel to each other in one direction and are aligned in a sheet shape are used.
It is known that a scrim cloth made of glass fiber is attached to one surface of a unidirectional prepreg impregnated with a thermosetting resin of a stage. Both carbon fiber and glass fiber act as reinforcing fibers for resin, and scrim cloth prevents the carbon fibers from being disturbed during molding, and also provides a reinforcing effect mainly in the direction orthogonal to the alignment direction of the carbon fibers. ing.
ところで、スクリムクロスは、織成が容易であるという
理由で緯糸よりも経糸のほうが多くなっており、従来の
スクリムクロス貼り合せプリプレグにおいては、経糸が
一方向性プリプレグの炭素繊維の引き揃え方向になるよ
うに貼り合わせている。そして、そのようなスクリムク
ロス貼り合せプリプレグを使用したＣＦＲＰ管の成形
は、マンドレルに、適当な大きさに裁断したスクリムク
ロス貼り合せプリプレグをその炭素繊維の引き揃え方向
がマンドレルの長手方向になるように所望の回数巻き付
け、加熱、加圧して樹脂を硬化させた後にマンドレルを
引き抜くことによって行っている。これにより、管の長
手方向においては一方向性プリプレグの炭素繊維とスク
リムクロスの経糸による補強効果が与えられ、また、周
方向においてはスクリムクロスの緯糸による補強効果が
与えられるわけである。しかしながら、これでは、たと
えば釣竿のような、極端に薄肉、軽量で、しかも、長手
方向にも周方向にも高い強度が要求される管の成形はな
かなか難しい。By the way, since the scrim cloth has more warps than wefts because it is easy to weave, in the conventional scrim cloth pasted prepreg, the warps are aligned in the direction in which the carbon fibers of the unidirectional prepreg are aligned. It is stuck so that it becomes. The CFRP pipe is molded using such a scrim cloth-bonded prepreg so that the scrim cloth-bonded prepreg cut into an appropriate size is aligned with the mandrel in the longitudinal direction of the mandrel. It is carried out by winding a desired number of times, heating and pressurizing to cure the resin, and then pulling out the mandrel. As a result, the reinforcing effect of the carbon fiber of the unidirectional prepreg and the warp yarn of the scrim cloth is given in the longitudinal direction of the pipe, and the reinforcing effect of the weft yarn of the scrim cloth is given in the circumferential direction. However, in this case, it is quite difficult to form a tube such as a fishing rod which is extremely thin and lightweight and requires high strength in the longitudinal direction and the circumferential direction.
すなわち、長手方向に所望量の補強繊維が配置されるよ
うにすると周方向の補強繊維量が不足し、所望の周方向
強度が得られなくなる。周方向強度が不足すると、曲げ
の力が加わったときに座屈が起こり、管は簡単に破壊し
てしまう。もっとも、より多くのスクリムクロス貼り合
せプリプレグを巻き付け、より厚肉の管とすれば周方向
強度は向上する。しかしながら、そのようにして周方向
に所望の強度を与えると、こんどは長手方向の強度がオ
ーバースペックになり、管の重量が著しく増大してしま
う。また、より厚手のスクリムクロスを使用することも
考えられるが、これもまた同様の理由で重量の増大をも
たらしてしまう。このように、従来のスクリムクロス貼
り合せプリプレグによっては、長手方向強度と周方向強
度とをバランスよく備え、しかも、軽量な管の成形はな
かなか難しい。That is, when a desired amount of reinforcing fibers is arranged in the longitudinal direction, the amount of reinforcing fibers in the circumferential direction becomes insufficient, and the desired circumferential strength cannot be obtained. If the circumferential strength is insufficient, buckling will occur when a bending force is applied, and the pipe will easily break. However, if more scrim cloth-bonded prepreg is wound and a thicker tube is formed, the circumferential strength is improved. However, when the desired strength is applied in the circumferential direction in this manner, the strength in the longitudinal direction is over-specified, and the weight of the tube is significantly increased. It is also conceivable to use a thicker scrim cloth, but this also leads to an increase in weight for the same reason. As described above, according to the conventional scrim cloth-bonded prepreg, it is difficult to mold a lightweight pipe having a good balance of longitudinal strength and circumferential strength.
発明が解決しようとする課題 この発明の目的は、従来のスクリムクロス貼り合せプリ
プレグの上述した問題点を解決し、長手方向強度と周方
向強度とをバランスよく備え、しかも、軽量なＣＦＲＰ
管を成形することができるスクリムクロス貼り合せプリ
プレグを提供するにある。The object of the present invention is to solve the above-mentioned problems of the conventional scrim cloth-bonded prepreg, to provide a well-balanced longitudinal strength and circumferential strength, and to provide a lightweight CFRP.
In order to provide a scrim cloth laminated prepreg capable of forming a tube.
課題を解決するための手段 上記目的を達成するために、この発明は、互いに並行か
つシート状に引き揃えた炭素繊維にＢステージの熱硬化
性樹脂が含浸されている一方向性プリプレグの一面にガ
ラス繊維または有機高弾性率繊維からなるスクリムクロ
スが貼り合わされており、上記スクリムクロスは経方向
と緯方向とで織糸密度が異なっており、かつ、織糸密度
の小なる方向が上記一方向性プリプレグの炭素繊維の引
き揃え方向であるように貼り合わされていることを特徴
とするスクリムクロス貼り合せプリプレグを提供する。
織糸密度は、好ましくは、大なる方が小なる方の１．２
〜３．５倍の範囲にある。Means for Solving the Problems In order to achieve the above object, the present invention provides one surface of a unidirectional prepreg in which carbon fibers aligned in parallel with each other in a sheet shape are impregnated with a B-stage thermosetting resin. A scrim cloth made of glass fibers or organic high elastic modulus fibers is laminated, the scrim cloth has different weaving yarn densities in the warp direction and the weft direction, and the direction in which the weaving yarn density decreases is one direction. Provided is a scrim cloth-bonded prepreg, which is characterized in that the carbon fibers of the sex prepreg are bonded so as to be aligned with each other.
The weaving yarn density is preferably 1.2 for the larger one and the smaller one.
It is in the range of ~ 3.5 times.
この発明の一実施態様を説明するに、図面（一部破断し
た概略斜視図）において、互いに並行かつシート状に引
き揃えた炭素繊維２にＢステージの熱硬化性樹脂（図示
せず）が含浸されている一方向性プリプレグ１の一面に
は、ガラス繊維または有機高弾性率繊維（ポリアラミド
繊維など）からなり、かつ、経方向と緯方向とで織糸密
度が異なるスクリムクロス３が、その織糸密度の小なる
方向が炭素繊維２の引き揃え方向になるように、換言す
れば、織糸密度の大なる方向が炭素繊維２の引き揃え方
向と直交する方向になるように貼り合わされている。か
かる一方向性プリプレグ１とスクリムクロス３の貼り合
せ体がスクリムクロス貼り合せプリプレグを構成してい
る。そして、スクリムクロス貼り合せプリプレグは、一
方向性プリプレグ１の他面において離型紙４に担持され
ている。To explain one embodiment of the present invention, in the drawing (a schematic perspective view with a part broken away), carbon fibers 2 aligned in parallel and in a sheet shape are impregnated with a B-stage thermosetting resin (not shown). On one surface of the unidirectional prepreg 1, a scrim cloth 3 made of glass fiber or organic high elastic modulus fiber (such as polyaramid fiber) and having different weaving yarn densities in the warp direction and the weft direction is formed. The yarns are laminated so that the direction in which the yarn density decreases becomes the direction in which the carbon fibers 2 are aligned, in other words, the direction in which the yarn density increases becomes orthogonal to the direction in which the carbon fibers 2 are aligned. . The bonded body of the unidirectional prepreg 1 and the scrim cloth 3 constitutes a scrim cloth bonded prepreg. The scrim cloth bonded prepreg is carried on the release paper 4 on the other surface of the unidirectional prepreg 1.
上記において、一方向性プリプレグは、０．０２〜１m
m、好ましくは０．０３〜０．５mm程度の厚みを有し、
３０〜８０重量％、好ましくは４０〜８０重量％の炭素
繊維を含んでいる。In the above, the unidirectional prepreg has a thickness of 0.02 to 1 m.
m, preferably having a thickness of about 0.03 to 0.5 mm,
It contains 30 to 80% by weight, preferably 40 to 80% by weight of carbon fiber.
一方向性プリプレグを構成している熱硬化性樹脂は、周
知の、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、ポリイミド樹脂である。かかる熱
硬化性樹脂は、上述したように、一般に半硬化状態と呼
ばれるＢステージの状態にある。The thermosetting resin constituting the unidirectional prepreg is a well-known one such as epoxy resin, unsaturated polyester resin, phenol resin, polyimide resin. As described above, such a thermosetting resin is in a B stage state generally called a semi-cured state.
スクリムクロスは、ガラス繊維または有機高弾性率繊維
を平織または朱子織したようなものである。なかでも、
平織が好ましい。そのようなスクリムクロスは、それが
ガ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、目付１０
〜８０ｇ／ｍ２、好ましくは１５〜４０ｇ／ｍ２であ
り、有機高弾性繊維からなるものである場合には厚み
０．０２〜０．１５mm、好ましくは０．０３〜０．１m
m、目付１０〜９０ｇ／ｍ２、好ましくは２０〜６０ｇ
／ｍ２である。The scrim cloth is like plain weave or satin weave of glass fibers or organic high modulus fibers. Above all,
Plain weave is preferred. Such a scrim cloth has a thickness of 0.01-when it is made of glass fiber.
0.1 mm, preferably 0.02-0.05 mm, basis weight 10
˜80 g / m 2 , preferably 15 to 40 g / m 2 , and when made of organic high elasticity fiber, the thickness is 0.02 to 0.15 mm, preferably 0.03 to 0.1 m.
m, basis weight 10 to 90 g / m 2 , preferably 20 to 60 g
/ M 2 .
スクリムクロスは、上述したように経方向と緯方向とで
織糸密度が異なっている。ここにおいて織糸密度は、織
糸の繊度と単位長さあたりの打ち込み本数との積であ
る。したがって、同一繊度の織糸を使用するのであれ
ば、織糸密度は単位長さあたりの打ち込み本数というこ
とになる。経方向と緯方向との織糸密度の比をどの程度
にするかは、使用する補強繊維の種類や、どのような用
途のＣＦＲＰの成形に使用するかといったことによって
異なるものの、織糸密度は、大なる方が小なる方の１．
２倍から３．５倍の範囲にあれば十分である。As described above, the scrim cloth has different weaving yarn densities in the warp direction and the weft direction. Here, the weaving yarn density is the product of the fineness of the weaving yarn and the number of threads per unit length. Therefore, if weaving yarns of the same fineness are used, the weaving yarn density is the number of threads per unit length. The ratio of the weft yarn density in the warp direction to the weft direction depends on the type of reinforcing fiber used and what kind of CFRP molding is used. The larger one is the smaller one.
A range of 2 to 3.5 times is sufficient.
離型紙は、主としてスクリムクロス貼り合せプリプレグ
の取り扱いを容易にするもので、ＣＦＲＰを成形すると
きには剥ぎ取られる。そのような離型紙は、厚み０．０
５〜０．２mm程度のクラフト紙、ロール紙、グラシン紙
などの紙の両面にクレー、でんぷん、ポリエチレン、ポ
リビニルアルコールなどの目止め剤の塗布層を設け、そ
の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縮合反応型または付加
反応型シリコーンからなる離型剤を塗布したようなもの
である。The release paper mainly facilitates the handling of the scrim cloth-bonded prepreg and is peeled off when molding the CFRP. Such release paper has a thickness of 0.0
Coating layers of clay, starch, polyethylene, polyvinyl alcohol, and other sealing agents are provided on both sides of kraft paper, roll paper, glassine paper, etc. with a thickness of 5 to 0.2 mm, and silicone-based or non-coated materials are applied on the coating layers. It is the one in which a silicone-based release agent, preferably a release agent made of condensation reaction type or addition reaction type silicone of polydimethylsiloxane and polydimethylhydrogensiloxane is applied.
この発明のスクリムクロス貼り合せプリプレグは、いろ
いろな方法によって製造することができる。次にその好
ましい一例を示す。The scrim cloth-bonded prepreg of the present invention can be manufactured by various methods. Next, a preferred example thereof will be shown.
すなわち、互いに平行かつシート状に引き揃えた炭素繊
維のストランドをＢステージの熱硬化性樹脂を塗布した
２枚の離型紙の樹脂塗布面で挾み、これを８０〜１８０
℃に加熱したプレスロールに通してストランドの押し拡
げと樹脂の含浸とを行い、冷却した後、いずれか一方の
離型紙を剥ぎ取り、その剥ぎ取り面に、経方向と緯方向
とで織糸密度が異なるスクリムクロスをその織糸密度の
小なる方向が炭素繊維の引き揃え方向になるように重ね
合わせ、さらに５０〜１２０℃に加熱したプレスロール
に通してスクリムクロスを貼り合わせるようにするのが
好ましい。That is, carbon fiber strands that are parallel to each other and aligned in a sheet shape are sandwiched between the resin-coated surfaces of two release papers coated with a B-stage thermosetting resin, and the fibers are covered with a resin of 80 to 180
Strands are spread and impregnated with resin through a press roll heated to ℃, and after cooling one of the release papers is stripped, the stripped surface is woven in the warp and weft directions. The scrim cloths having different densities are overlapped so that the direction in which the density of the weaving yarn becomes smaller is the direction in which the carbon fibers are aligned, and then the scrim cloths are pasted through a press roll heated to 50 to 120 ° C. Is preferred.
実施例 互いに並行かつシート状に引き揃えた、東レ株式会社製
炭素繊維“トレカ”Ｔ３００−６Ｋ（平均単糸径：７μ
ｍ、単糸数：６，０００本）にＢステージのエポキシ樹
脂が含浸されている一方向性プリプレグ（目付：２２４
ｇ／ｍ２）に、番手がＤ９００のガラス繊維からなる、
経糸密度が３９本／２５mm、緯糸密度が７０本／２５mm
の平織スクリムクロスをその経糸方向が炭素繊維の引き
揃え方向になるように貼り合わせ、スクリムクロス貼り
合せプリプレグを得た。Example Toray Co., Ltd. carbon fibers “Torayca” T300-6K (average single yarn diameter: 7 μm) parallel to each other and aligned in a sheet form
m, number of single yarns: 6,000), unidirectional prepreg (Basis weight: 224) impregnated with B-stage epoxy resin
g / m 2 ) is made of glass fiber having a count of D900,
Warp density is 39 threads / 25 mm, weft density is 70 threads / 25 mm
The plain woven scrim cloth of No. 1 was laminated so that the warp direction was the direction in which the carbon fibers were aligned and aligned to obtain a scrim cloth laminated prepreg.
次に、上記スクリムクロス貼り合せプリプレグを内径２
０mmのマンドレルに２回巻き付け、１３０℃で９０分加
熱して内径２０mm、外径２０．６５mm、長さ８００mm、
重さ２６ｇのＣＦＲＰ管を成形した。Next, use the above scrim cloth bonded prepreg with an inner diameter of 2
Wrap it around a 0 mm mandrel twice and heat it at 130 ° C for 90 minutes to get an inner diameter of 20 mm, an outer diameter of 20.65 mm, and a length of 800 mm.
A CFRP tube weighing 26 g was molded.
次に、上記ＣＦＲＰ管について、ＪＩＳ Ｋ７０７４に
準じて曲げ試験をしたところ、曲げ強度は７０kgf ／mm
2であった。Next, when a bending test was performed on the CFRP pipe according to JIS K7074, the bending strength was 70 kgf / mm.
Was 2 .
また、ＣＦＲＰ管を長さ１５mmに切断し、直径５０mmの
圧子で側面から圧縮して圧縮破壊強度を測定したとこ
ろ、圧縮破壊強度は１．５２kgf で、破壊に至るまでの
変形量は５．８mmであった。Also, the CFRP pipe was cut into a length of 15 mm, and the compressive fracture strength was measured by compressing it from the side with an indenter having a diameter of 50 mm. The compressive fracture strength was 1.52 kgf, and the amount of deformation until fracture was 5.8 mm. Met.
比較例 実施例で使用した一方向性プリプレグに、番手がＤ９０
０のガラス繊維からなる、経糸密度が６０本／２５mm、
緯糸密度が５１本／２５mmの平織スクリムクロスをその
経糸方向が炭素繊維の引き揃え方向になるように貼り合
わせ、スクリムクロス貼り合せプリプレグを得た。Comparative Example The unidirectional prepreg used in the examples had a count of D90.
Made of 0 glass fiber, the warp density is 60 threads / 25 mm,
A plain weave scrim cloth having a weft density of 51 yarns / 25 mm was attached so that the warp direction was the carbon fiber aligning direction to obtain a scrim cloth-attached prepreg.
次に、実施例と同様にして内径２０mm、外径２０．６５
mm、長さ８００mm、重さ２６ｇのＣＦＲＰ管を成形し
た。Next, as in the example, the inner diameter is 20 mm and the outer diameter is 20.65.
A CFRP tube having a length of 800 mm and a weight of 26 g was molded.
このＣＦＲＰ管について、実施例と同様に曲げ試験をし
たところ、曲げ強度は６６kgf ／mm2で、実施例のもの
の約９４％であった。また、圧縮破壊強度は１．３９kg
f で約９１％であり、破壊に至るまでの変形量も６．１
mmと大きかった。When this CFRP pipe was subjected to a bending test in the same manner as in the example, the bending strength was 66 kgf / mm 2 , which was about 94% of that of the example. The compressive breaking strength is 1.39 kg.
It is about 91% at f, and the amount of deformation until failure is 6.1.
It was as large as mm.
発明の効果 この発明のスクリムクロス貼り合せプリプレグは、炭素
繊維を使用した一方向性プリプレグの一面に、ガラス繊
維または有機高弾性率繊維からなる、経方向と緯方向と
で織糸密度が異なるスクリムクロスをその織糸密度の小
なる方向が炭素繊維の引き揃え方向になるように、換言
すれば、織糸密度の大なる方向が炭素繊維の引き揃え方
向と直交する方向になるように貼り合わせてなるもので
あるから、経方向と緯方向との織糸密度比が適当なスク
リムクロスを選択、使用することで長手方向強度と周方
向強度においてバランスがとれ、しかも、軽量なＣＦＲ
Ｐ管を容易に成形することができる。すなわち、成形に
際して、マンドレルに、この発明のスクリムクロス貼り
合せプリプレグを一方向性プリプレグの炭素繊維の方向
が長手方向になるように巻き付ければ、マンドレルの長
手方向に所望量の補強繊維を配置したときに周方向に所
望量の補強繊維が向くようになり、長手方向強度と周方
向強度とをバランスよく備え、しかも、軽量な管を得る
ことができる。そのため、この発明のスクリムクロス貼
り合せプリプレグは、極端に軽量で、しかも、長手方向
にも周方向にも高強度であることが要求される釣竿を成
形するようなときに特に好適である。EFFECT OF THE INVENTION The scrim cloth-bonded prepreg of the present invention is a unidirectional prepreg that uses carbon fibers, and is composed of glass fibers or organic high elastic modulus fibers, and the scrim has different weaving yarn densities in the warp and weft directions. Laminating the cloth so that the direction in which the weaving yarn density is smaller is the direction in which the carbon fibers are aligned, in other words, the direction in which the weaving yarn density is greater is the direction that is orthogonal to the direction in which the carbon fibers are aligned. Therefore, by selecting and using a scrim cloth with an appropriate weaving yarn density ratio in the warp direction and the weft direction, the longitudinal strength and the circumferential strength are balanced and a lightweight CFR is used.
The P tube can be easily molded. That is, at the time of molding, by winding the scrim cloth-bonded prepreg of the present invention around the mandrel so that the direction of the carbon fibers of the unidirectional prepreg becomes the longitudinal direction, a desired amount of reinforcing fibers is arranged in the longitudinal direction of the mandrel. At this time, a desired amount of reinforcing fibers are oriented in the circumferential direction, and it is possible to obtain a lightweight pipe having a good balance of longitudinal strength and circumferential strength. Therefore, the scrim cloth-bonded prepreg of the present invention is particularly suitable for forming a fishing rod which is required to be extremely lightweight and have high strength in both the longitudinal direction and the circumferential direction.
図面は、この発明のスクリムクロス貼り合せプリプレグ
の一実施態様を示す、一部破壊した概略斜視図である。 １：一方向性プリプレグ ２：一方向性プリプレグの炭素繊維 ３：スクリムクロス ４：離型紙The drawing is a partially broken schematic perspective view showing one embodiment of the scrim cloth-bonded prepreg of the present invention. 1: Unidirectional prepreg 2: Carbon fiber of unidirectional prepreg 3: Scrim cloth 4: Release paper
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭55−162924（ＪＰ，Ａ) 特公 昭52−43409（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-55-162924 (JP, A) JP-B-52-43409 (JP, B2)
Claims (1)
繊維にＢステージの熱硬化性樹脂が含浸されている一方
向性プリプレグの一面にガラス繊維または有機高弾性率
繊維からなるスクリムクロスが貼り合わされており、上
記スクリムクロスは経方向と緯方向とで織糸密度が異な
っており、かつ、織糸密度の小なる方向が上記一方向性
プリプレグの炭素繊維の引き揃え方向であるように貼り
合わされていることを特徴とするスクリムクロス貼り合
せプリプレグ。1. A scrim cloth made of glass fiber or organic high modulus fiber is attached to one surface of a unidirectional prepreg in which carbon fibers aligned in parallel with each other in a sheet shape are impregnated with a B-stage thermosetting resin. The scrim cloth has different weaving yarn densities in the warp direction and the weft direction, and is applied so that the direction in which the weaving yarn density decreases is the direction in which the carbon fibers of the unidirectional prepreg are aligned. A scrim cloth pasted prepreg characterized by being combined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59017538A JPH0618905B2 (en) | 1984-02-02 | 1984-02-02 | Scrim cloth pasted prepreg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59017538A JPH0618905B2 (en) | 1984-02-02 | 1984-02-02 | Scrim cloth pasted prepreg |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60163936A JPS60163936A (en) | 1985-08-26 |
| JPH0618905B2 true JPH0618905B2 (en) | 1994-03-16 |
Family
ID=11946692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59017538A Expired - Lifetime JPH0618905B2 (en) | 1984-02-02 | 1984-02-02 | Scrim cloth pasted prepreg |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0618905B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK1595689T3 (en) | 2004-05-11 | 2007-05-14 | Hexcel Holding Gmbh | Prepregs for use in building structures of composite materials and methods for their manufacture |
| US7790637B2 (en) | 2007-10-31 | 2010-09-07 | Apple Inc. | Composite laminate having an improved cosmetic surface and method of making same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS582428B2 (en) * | 1975-10-02 | 1983-01-17 | 松下電器産業株式会社 | Kirokusaisei Souchi no Sou Satai Kudo Souchi |
| JPS55162924A (en) * | 1979-06-08 | 1980-12-18 | Ryobi Ltd | Production of fishing rod or the like |
-
1984
- 1984-02-02 JP JP59017538A patent/JPH0618905B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60163936A (en) | 1985-08-26 |
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