JPH05245835A - Base material for forming fiber-reinforced thermoplastic resin and manufacture thereof - Google Patents

Base material for forming fiber-reinforced thermoplastic resin and manufacture thereof

Info

Publication number
JPH05245835A
JPH05245835A JP27352991A JP27352991A JPH05245835A JP H05245835 A JPH05245835 A JP H05245835A JP 27352991 A JP27352991 A JP 27352991A JP 27352991 A JP27352991 A JP 27352991A JP H05245835 A JPH05245835 A JP H05245835A
Authority
JP
Japan
Prior art keywords
thermoplastic resin
fiber
molding
reinforcing
base material
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
JP27352991A
Other languages
Japanese (ja)
Inventor
Yutaka Kawaguchi
裕 川口
Naoya Akiyama
直也 秋山
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.)
Nitto Boseki Co Ltd
Original Assignee
Nitto Boseki 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 Nitto Boseki Co Ltd filed Critical Nitto Boseki Co Ltd
Priority to JP27352991A priority Critical patent/JPH05245835A/en
Publication of JPH05245835A publication Critical patent/JPH05245835A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To obtain an excellent molded article wherein reinforcing fibers exist entirely therein even if the article has a three dimensional shape by stacking mats comprising monofilaments of reinforcing fiber and thermoplastic resin fiber in layers on the opposite sides of a fabric comprising reinforcing fiber and thermally bonding said layered body by means of thermoplastic resin fiber to form a base material for molding. CONSTITUTION:Mats comprising monofilament of reinforcing fiber and thermoplastic resin fiber are stacked in layers on the opposite sides of a fabric comprising reinforcing fiber and thermally bonded by means of thermoplastic resin fiber to form a base material for molding. In manufacturing, chopped strands 5, which are prepared by cutting reinforcing fiber strands 1 and thermoplastic resin fiber strands 2 into pieces having certain length by means of a cutting device 3, are spread over a steel conveyor 9 driven by drive rollers 8, 8. And a fiber reinforced fabric 6 delivered from a cross roller 4 is layered and chopped strands 5 similar to those as mentioned above are spread to manufacture a layered body 7. Further, thermoplastic resin is melted by means of a pair of hot press rolls 10 to provide a base material for molding 11.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は繊維補強熱可塑性樹脂の
成形に関し、特に、成形サイクルの短いホットスタンピ
ング成形に適した成形用基材に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to molding of a fiber reinforced thermoplastic resin, and more particularly to a molding base material suitable for hot stamping molding having a short molding cycle.

【0002】[0002]

【従来の技術】繊維補強熱可塑性樹脂成形体の成形法と
しては多くの方法が提案されている。例えば、射出成形
や押出し成形による方法、溶剤を用いるウエットプリプ
レグ法、又、熱可塑性樹脂を繊維化し補強繊維と糸、又
は織物の状態で混合するドライプリプレグ法などがあ
る。特に、最近注目を浴びている方法として、ホツトス
タンピング法による成形法がある。この方法は、スタン
パブルシートと言われるものを基材として用い、成形サ
イクルが短く、比較的大型の成形品の成形に適してい
る。スタンパブルシートとしては、補強繊維からなるチ
ョップドストランドマットやコンティニュアスストラン
ドマットに熱可塑性樹脂のフィルムやシートを積層した
ものが使われている。また最近になって、補強繊維の短
繊維と熱可塑性樹脂の短繊維、又はパウダーを抄紙法に
よりシート状にしたものも使用されるようになってきて
いる。スタンパブルシートはあらかじめ加熱された状態
で成形機に供給され、型に合わせて高速でプレスされ成
形される。
2. Description of the Related Art As a molding method of a fiber-reinforced thermoplastic resin molding, many methods have been proposed. For example, there are a method by injection molding or extrusion molding, a wet prepreg method using a solvent, and a dry prepreg method in which a thermoplastic resin is made into fibers and mixed with reinforcing fibers and yarns or a woven state. In particular, as a method that has been recently receiving attention, there is a molding method using a hot stamping method. This method uses what is called a stampable sheet as a substrate, has a short molding cycle, and is suitable for molding a relatively large molded product. As a stampable sheet, a laminated layer of a thermoplastic resin film or sheet on a chopped strand mat or continuous strand mat made of reinforcing fibers is used. Recently, short fibers of reinforcing fibers and short fibers of thermoplastic resin, or powder made into a sheet by a papermaking method have been used. The stampable sheet is supplied to the molding machine in a preheated state, and is pressed and molded at high speed according to the mold.

【0003】しかし、スタンパブルシート内に於ける補
強繊維の状態は、前述したように、チョップドストラン
ドマットの状態であったり、コンティニュアスストラン
ドマットの状態であったり、又、短繊維の状態でランダ
ムに分散配列してる状態である。この事は、補強繊維同
志の絡み合いが弱いために、成形時に高速でプレスする
際に、樹脂の流れと一緒に補強繊維も流れやすく、成型
体中で補強繊維の分布が不均一になりやすいと言う問題
がある。特に、深絞りの形状を有する成形体の場合にこ
の傾向が現れやすい。
However, the state of the reinforcing fiber in the stampable sheet is, as described above, in the state of chopped strand mat, in the state of continuous strand mat, or in the state of short fiber. It is in a state of being randomly distributed. This is because the reinforcing fibers are weakly entangled with each other, and when pressing at high speed during molding, the reinforcing fibers easily flow together with the resin flow, and the distribution of the reinforcing fibers tends to become uneven in the molded body. I have a problem to say. In particular, this tendency is likely to appear in the case of a molded product having a deep-drawn shape.

【0004】[0004]

【発明が解決しようとする課題】繊維補強熱可塑性樹脂
成形体のホットスタンピング成形に於いて、成型体中に
於ける補強繊維の分布が不均一になりやすく、その結
果、成形体の強度が場所によって異なると言う事が起こ
りやすかった。特に、成形体の形状が深絞りの場合にそ
の現象が起こりやすいということがあった。
DISCLOSURE OF THE INVENTION In hot stamping molding of a fiber-reinforced thermoplastic resin molding, the distribution of reinforcing fibers in the molding tends to be uneven, and as a result, the strength of the molding varies depending on the location. It was easy to say that it was different depending on. Especially, when the shape of the molded product is deep drawing, the phenomenon is likely to occur.

【0005】[0005]

【課題を解決するための手段】本願発明者等は前記課題
の解決のためにスタンパブルシートの構成を変えること
により解決を図った。即ち、補強繊維からなる織物の両
側に、補強繊維、及び熱可塑性樹脂繊維の短繊維からな
るマットが、熱可塑性樹脂繊維によって、熱接着されて
いる繊維補強熱可塑性樹脂成形用基材を用いることによ
り、課題の解決が可能であることを見出だした。又、補
強繊維からなる織物の両側に、補強繊維の短繊維からな
るマットを補強材とする熱可塑性樹脂層があり、これら
各層が一体化している繊維補強熱可塑性樹脂成形用基材
を用いることにより、課題の解決が可能であることを見
出だした。 この繊維補強熱可塑性樹脂成形用基材の製
造は、コンベア上に、補強繊維と熱可塑性樹脂繊維の短
繊維からなるマット状物を形成し、該マット状物の上に
補強繊維からなる織物を供給し、更に該織物上に、補強
繊維と熱可塑性樹脂繊維の短繊維からなるマット状物を
形成し、その後、この積層体を熱プレスすることにより
シート状とすることにより得た。
In order to solve the above problems, the inventors of the present application tried to solve the problems by changing the structure of the stampable sheet. That is, using a fiber-reinforced thermoplastic resin molding substrate in which a mat made of reinforcing fibers and short fibers of thermoplastic resin fibers is thermally bonded by thermoplastic resin fibers on both sides of a woven fabric of reinforcing fibers. It was found that the solution of the problem is possible. Further, on both sides of the woven fabric made of reinforcing fibers, there is a thermoplastic resin layer having a mat made of short fibers of reinforcing fibers as a reinforcing material, and a fiber reinforced thermoplastic resin molding substrate in which these layers are integrated is used. It was found that the solution of the problem is possible. This fiber-reinforced thermoplastic resin molding substrate is produced by forming a mat-like material consisting of reinforcing fibers and thermoplastic resin fibers on a conveyor, and forming a woven fabric of reinforcing fibers on the mat-like material. It was supplied, and a mat-like material composed of reinforcing fibers and short fibers of thermoplastic resin fibers was formed on the woven fabric, and then the laminated body was hot pressed into a sheet-like form.

【0006】本願に使用される補強繊維としては、ガラ
ス繊維,炭素繊維,アラミド繊維,アルミナ繊維などが
使用できる。織物についてはガラス繊維の場合で言う
と、単重が50g/m2 〜300g/m2 のものが使用
できる。単重がこれより小さい場合は織物の絶対強度が
小さいため、プレス成形時に裂けるなどの現象が発生し
やすい。単重がこれより大きい場合は、熱可塑性樹脂の
含浸が十分に行われ難くなるため好ましくない。又、織
物は使用される樹脂に適した表面処理が施されている必
要がある。ガラス繊維織物の場合はアミノシラン処理,
エポキシシラン処理,メタクリルシラン処理,クロルシ
ラン処理などによる。マット層に使用される短繊維は、
ストランドの状態でもフィラメントの状態でもいずれも
使用できる。短繊維の長さは、0.5cm〜15cmの
範囲が適当である。マット層の単重は片側で100g/
2 〜400g/m2 の範囲が好ましい。成形体の補強
繊維の重量%はマット層の補強繊維と熱可塑性樹脂繊維
の比率により決まる。マット層における補強繊維の比率
は30%〜50%の範囲が望ましく、その結果、最終成
形体の補強繊維の比率は40%〜60%に調整され
る。。 又、成形体の単重は、300g/m2 〜100
0g/m2 の範囲となり、好ましくは400g/m2
600g/m2 の範囲が望ましい。この場合、成形体の
厚さは0.4mm〜0.7mmの物が得られる。
As the reinforcing fiber used in the present application, glass fiber, carbon fiber, aramid fiber, alumina fiber and the like can be used. In terms of the case of glass fibers for fabrics, those unit weight of 50g / m 2 ~300g / m 2 can be used. When the unit weight is smaller than this, the absolute strength of the woven fabric is small, so that a phenomenon such as tearing tends to occur during press molding. When the unit weight is larger than this, it is difficult to impregnate the thermoplastic resin sufficiently, which is not preferable. Further, the woven fabric needs to be subjected to a surface treatment suitable for the resin used. Aminosilane treatment for glass fiber fabric,
Epoxysilane treatment, methacrylsilane treatment, chlorosilane treatment, etc. The short fibers used in the mat layer are
Either a strand state or a filament state can be used. The length of the short fibers is suitably in the range of 0.5 cm to 15 cm. The unit weight of the matte layer is 100g / on one side
The range of m 2 to 400 g / m 2 is preferable. The weight% of the reinforcing fiber of the molded body is determined by the ratio of the reinforcing fiber of the mat layer and the thermoplastic resin fiber. The ratio of reinforcing fibers in the mat layer is preferably in the range of 30% to 50%, and as a result, the ratio of reinforcing fibers in the final molded product is adjusted to 40% to 60%. . Moreover, the unit weight of the molded product is 300 g / m 2 to 100.
The range is 0 g / m 2 , preferably 400 g / m 2 ~
A range of 600 g / m 2 is desirable. In this case, a molded product having a thickness of 0.4 mm to 0.7 mm is obtained.

【0007】本願に使用される熱可塑性樹脂繊維として
は、ポリアミド,ポリカーボネート,ポリブチレンテレ
フタレート,ポリ塩化ビニル,ポリフェニレンサルファ
イド,ポリエーテルエーテルケトン等繊維化が可能な樹
脂であれば使用可能である。本願発明の請求項1による
成形用基材は、マット層の樹脂繊維が完全に溶融してい
るのではなく、一部溶融することにより、マット層内の
ストランド、又は、フィラメント間の接着剤としての効
果と、マット層と織物との間の接着剤としての働きをし
ているのに止まっている。従って、この成形用基材を用
いて成形する場合には、さらに加熱プレスして樹脂繊維
を完全に溶融し、補強繊維に含浸させ脱泡し、一体化さ
せることが必要である。この含浸脱泡工程は、熱接着さ
せるための加熱プレス工程に続いて連続して行うことも
可能であるし、別工程にして、バッチ式のプレスにより
行うことも可能である。又、実際の成形の際に、溶融,
含浸,脱泡を行うこともできるがその場合は、通常のホ
ットスタンピング成形のように短時間のサイクルで成形
は出来ず、型を閉じてからのホールド時間を長くする必
要がある。
As the thermoplastic resin fibers used in the present application, any resin capable of being formed into fibers such as polyamide, polycarbonate, polybutylene terephthalate, polyvinyl chloride, polyphenylene sulfide and polyether ether ketone can be used. The molding substrate according to claim 1 of the present invention is used as an adhesive between strands or filaments in the mat layer by partially melting the resin fiber of the mat layer, not by completely melting it. And acts as an adhesive between the matte layer and the fabric. Therefore, when molding is performed using this molding substrate, it is necessary to further heat and press to completely melt the resin fibers, impregnate the reinforcing fibers, degas, and integrate them. This impregnation and defoaming step can be performed continuously after the hot pressing step for thermal bonding, or can be performed as a separate step by a batch type press. Also, during actual molding, melting,
Impregnation and defoaming can be performed, but in that case, molding cannot be performed in a short cycle like normal hot stamping molding, and it is necessary to lengthen the hold time after closing the mold.

【0008】本願発明の請求項2による成形用基材は、
マット層の樹脂繊維がほぼ完全に溶融し、補強繊維の短
繊維や織物にかなり含浸し、脱泡もかなり行われてお
り、マット層,織物,マット層がほぼ一体化されている
状態である。従って、この成形用基材はこのまま通常の
ホットスタンピング成形を行うことができる。本願発明
請求項3の成形用基材の製造法は、コンベア上に、補強
繊維と熱可塑性樹脂繊維の短繊維からなるマットを形成
し、該マットの上に補強繊維織物を供給し、更にその上
に、補強繊維と熱可塑性樹脂繊維の短繊維からなるマッ
トを形成し、この積層体を熱プレスするものである。コ
ンベア上へのマットの形成は短繊維を散布することによ
り形成しても良いし、既にマット状に形成されたものを
供給することによっても良い。積層体の熱プレスは樹脂
繊維が若干熱溶融し、補強繊維の短繊維や、織物を熱接
着する程度の熱プレスであっても良いし、又、樹脂繊維
が完全に溶融し、補強繊維にほぼ完全に含浸し、脱泡さ
れ、一体化された状態になるまでの熱プレスであっても
良い。熱可塑性樹脂繊維の熱溶融の程度は最終成形品の
形状や性能、又、成形装置の能力などにより選択するこ
とができる。
A molding substrate according to claim 2 of the present invention comprises:
The resin fibers in the matte layer are almost completely melted, the short fibers of the reinforcing fiber and the woven fabric are considerably impregnated, and the defoaming is also carried out. The matte layer, the woven fabric and the matte layer are almost integrated. . Therefore, ordinary hot stamping molding can be performed on this molding substrate as it is. According to the method for producing a molding base material of the present invention, the mat comprising the reinforcing fibers and the short fibers of the thermoplastic resin fiber is formed on the conveyor, and the reinforcing fiber woven fabric is supplied onto the mat, and further, A mat composed of reinforcing fibers and short fibers of thermoplastic resin fibers is formed on the top, and the laminate is hot pressed. The mat may be formed on the conveyor by sprinkling short fibers or by supplying a mat-shaped material. The hot pressing of the laminate may be such that the resin fibers are slightly heat-melted and the short fibers of the reinforcing fibers and the woven fabric are heat-bonded, or the resin fibers are completely melted to form the reinforcing fibers. It may be a hot press until it is almost completely impregnated, degassed, and brought into an integrated state. The degree of heat melting of the thermoplastic resin fiber can be selected depending on the shape and performance of the final molded product, the capacity of the molding device, and the like.

【0009】[0009]

【作用】本願の繊維補強熱可塑性樹脂成形用基材は補強
繊維からなる織物を中間層とし、その両側に補強繊維と
熱可塑性樹脂繊維からなるマット層を配したもの、又
は、その両側に補強繊維の短繊維を補強材とする熱可塑
性樹脂層を配したサンドイッチ構造を特徴とするもので
ある。従って、本願の成形用基材を用いて立体形状を有
する成形体を成形した場合、補強材がマット状のみの場
合と異なり、織物の層は樹脂の流れと一緒に流れると言
うことはない。又、織物の両側にあるマット層もマット
層のみの場合と比較して流れにくくなる。その結果、成
形体の全面にわたって補強材が存在することになり、従
って、成形体の場所による強度のバラツキを小さくする
ことができる。補強材が織物だけの場合は成形体の形状
によっては、織物に皺や折れ曲りが入りやすい。しか
し、本願の成形用基材のように織物の両側にマット層を
配することにより、織物の皺や折れ曲りの発生を抑制す
ることができる。又、少々の皺や折れ曲りの発生は織物
の両面にマット層があるため目立たない。
The fiber-reinforced thermoplastic resin molding base material of the present application has a woven fabric made of reinforcing fibers as an intermediate layer and mat layers made of reinforcing fibers and thermoplastic resin fibers on both sides thereof, or reinforced on both sides thereof. It is characterized by a sandwich structure in which a thermoplastic resin layer having short fibers as a reinforcing material is arranged. Therefore, when a molded product having a three-dimensional shape is molded using the molding base material of the present application, unlike the case where the reinforcing material is only in the mat shape, the woven fabric layer does not flow together with the resin flow. Also, the mat layers on both sides of the fabric are less likely to flow as compared with the case of only the mat layer. As a result, the reinforcing material is present over the entire surface of the molded body, and therefore variations in strength depending on the location of the molded body can be reduced. When the reinforcing material is only a woven fabric, the woven fabric is likely to be wrinkled or bent depending on the shape of the molded body. However, by arranging the mat layers on both sides of the fabric like the molding substrate of the present application, it is possible to suppress the occurrence of wrinkles and bending of the fabric. Also, the occurrence of some wrinkles and bending is not noticeable because there are mat layers on both sides of the fabric.

【0010】[0010]

【実施例】【Example】

(1)図1は本発明の成形用基材を作成するための装置
の概略図である。ローラ8,8´はスチールコンベア9
を駆動する駆動ローラである。このコンベア9上に、補
強繊維ストランド1、熱可塑性樹脂繊維ストランド2が
切断装置3により一定の長さに切断されチョップドスト
ランド5として散布される。続いてクロスローラ4から
繰り出された補強繊維織物6が供給重ねられ、更に、そ
の上に、補強繊維ストランド1´と熱可塑性樹脂繊維ス
トランド2´が切断装置3´により切断され、チョップ
ドストランド5´として散布される。その結果、織物を
中間層としてその上下にマット層を配した積層体7が形
成され、コンベアの進行方向に移動する。10は圧力P
の付加が可能な熱圧ロール対であり、これにより熱可塑
性樹脂繊維を溶融しつつ、含浸し、シート化して成形用
基材11とする。
(1) FIG. 1 is a schematic view of an apparatus for producing the molding base material of the present invention. Rollers 8 and 8'are steel conveyors 9
Is a drive roller for driving the. On the conveyor 9, the reinforcing fiber strands 1 and the thermoplastic resin fiber strands 2 are cut into a certain length by the cutting device 3 and scattered as chopped strands 5. Subsequently, the reinforcing fiber woven fabric 6 fed out from the cross roller 4 is supplied and piled up, and further, the reinforcing fiber strand 1 ′ and the thermoplastic resin fiber strand 2 ′ are cut by the cutting device 3 ′, and the chopped strand 5 ′. Is sprayed as. As a result, a laminate 7 is formed in which the woven fabric is used as the intermediate layer and the mat layers are arranged above and below the woven fabric, and the laminated body 7 moves in the traveling direction of the conveyor. 10 is the pressure P
Is a hot-press roll pair capable of being added, and is thereby impregnated while being melted with the thermoplastic resin fiber and formed into a sheet to form the molding base material 11.

【0011】(2)[成形用基材の実施例] 図1の装置を用い次のような仕様の成形用基材を作成。 補強繊維ストランド ガラス繊維ストランド (ECG75 1/0) 熱可塑性樹脂繊維ストランド ポリアミド繊維ストランド 補強繊維織物 ガラス繊維織物 使用糸 経 ECG75 1/0 緯 ECG75 1/0 密度 経 43本/25mm 緯 34本/25mm 織り組織 平 織 単 重 209g/m2 表面処理 アミノシラン処理 マット層 とのストランドをガラス繊維が重量%で40%に なるように引き揃えて、長さ25mmに切断し、コンベア上に 散布し、マットを形成する。 (マット層の単重 200g/m2 (2) [Example of molding base material] A molding base material having the following specifications was prepared using the apparatus shown in FIG. Reinforcing Fiber Strands Glass Fiber Strands (ECG75 1/0) Thermoplastic Resin Fiber Strands Polyamide Fiber Strands Reinforcing Fiber Woven Glass Fiber Woven Threads Warp ECG75 1/0 Weft ECG75 1/0 Density Warp 43 / 25mm Weft 34 / 25mm Weave Tissue Plain weave Single weight 209 g / m 2 Surface treatment Aminosilane treatment Strands with the mat layer are aligned so that the glass fiber is 40% by weight, cut to a length of 25 mm, and sprinkled on the conveyor to form a mat. Form. (Mat layer unit weight 200g / m 2 )

【0012】 で得たマット層の上にのガラス
繊維織物を重ねる。 のガラス繊維織物の上にと同じマット層を形
成する。 マット層−織物−マット層の3層積層体が得られる。 で得られた3層積層体を熱圧ロール対を通すこ
とにより加熱加圧し、樹脂繊維を部分的に溶融させ、マ
ット層内のストランド間、及びマット層と織物間の接着
を行わせ、シート状とし成形用基材を得た。(基材の単
重は610g/m2 で、基材中のガラス繊維の重量%は
60%であった) ここで得た基材は、本願発明の請求項1記載の成形用基
材に該当する。
A glass fiber woven fabric is overlaid on the mat layer obtained in the above. Form the same matte layer as above on the glass fiber fabric. A three-layer laminate of mat layer-fabric-mat layer is obtained. The three-layer laminate obtained in step 1 is heated and pressed by passing through a pair of hot-press rolls to partially melt the resin fibers, thereby adhering between the strands in the mat layer and between the mat layer and the woven fabric. Then, a base material for molding was obtained. (The unit weight of the base material was 610 g / m 2 , and the weight% of the glass fiber in the base material was 60%.) The base material obtained here was the molding base material according to claim 1 of the present invention. Applicable

【0013】(3)成形 (2)で得られた成形用基材を半径150mmの半球状
の成形型に合わせて裁断し、260℃で予備加熱後、次
ぎの条件で成形を行った。 圧 力 10kg/cm2 温 度 230℃ ホールド時間 10分 冷却時間 10分 その結果、中間層の織物の折れが若干あるが、マット層
で表面が覆われているため外観上の問題はなかった。
(3) Molding The molding base material obtained in (2) was cut along a hemispherical mold having a radius of 150 mm, preliminarily heated at 260 ° C., and then molded under the following conditions. Pressure: 10 kg / cm 2 Temperature: 230 ° C. Hold time: 10 minutes Cooling time: 10 minutes As a result, the fabric of the intermediate layer was slightly folded, but there was no problem in appearance because the surface was covered with the mat layer.

【0014】[0014]

【発明の効果】本願発明の成形用基材をホットスタンピ
ング成形に用いることにより、立体形状を有する成形体
についても成形体全体に補強繊維が存在し、強度のバラ
ツキが少なく、外観性の良い成形体が得られる。又、本
願発明の成形用基材を用いることにより、補強繊維の含
有率の大きい、立体形状を有する比較的大型の成形体を
容易に得ることができる。
EFFECTS OF THE INVENTION By using the molding base material of the present invention for hot stamping molding, a reinforcing fiber is present in the entire molded body even in a molded body having a three-dimensional shape, and there is little variation in strength and molding with good appearance is achieved. The body is obtained. Further, by using the molding base material of the present invention, it is possible to easily obtain a relatively large-sized molded body having a large reinforcing fiber content and having a three-dimensional shape.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の成形用基材の製造に用いられる装置の
概略側面図。
FIG. 1 is a schematic side view of an apparatus used for producing a molding base material of the present invention.

【符号の説明】[Explanation of symbols]

1,1´ 補強繊維ストランド 2,2´ 熱可塑性樹脂繊維ストランド 3,3´ 切断装置 4 クロスロール 5,5´ チョップドストランド 6 補強繊維織物 7 積層体 8,8´ 駆動ローラ 9 スチールコンベア 10 熱圧ロール 11 成形用基材 12 離型剤塗布装置 1,1 'Reinforcing fiber strand 2,2' Thermoplastic resin fiber strand 3,3 'Cutting device 4 Cross roll 5,5' Chopped strand 6 Reinforcing fiber fabric 7 Laminated body 8,8 'Drive roller 9 Steel conveyor 10 Heat pressure Roll 11 Base material 12 Mold release agent coating device

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 補強繊維からなる織物の両側に、補強繊
維、及び熱可塑性樹脂繊維の短繊維からなるマットが、
熱可塑性樹脂繊維により、熱接着していることを特徴と
する繊維補強熱可塑性樹脂成形用基材。
1. A mat composed of reinforcing fibers and short fibers of thermoplastic resin fibers is provided on both sides of a woven fabric of reinforcing fibers.
A fiber-reinforced thermoplastic resin molding base material, which is thermally bonded with a thermoplastic resin fiber.
【請求項2】 補強繊維からなる織物の両側に、補強繊
維の短繊維からなるマットを補強材とする熱可塑性樹脂
層があり、これら各層が一体化していることを特徴とす
る繊維補強熱可塑性樹脂成形用基材。
2. A fiber-reinforced thermoplastic resin characterized in that, on both sides of a woven fabric made of reinforcing fibers, there are thermoplastic resin layers having a mat made of short fibers of reinforcing fibers as a reinforcing material, and these layers are integrated. Base material for resin molding.
【請求項3】 コンベア上に、補強繊維と熱可塑性樹脂
繊維の短繊維からなるマット状物を形成し、該マット状
物の上に補強繊維からなる織物を供給し、更に該織物上
に、補強繊維と熱可塑性樹脂繊維の短繊維からなるマッ
ト状物を形成し、その後、この積層体を熱プレスするこ
とによりシート状とすることを特徴とする繊維補強熱可
塑性樹脂成形用基材の製造方法。
3. A mat-like material composed of reinforcing fibers and short fibers of thermoplastic resin fibers is formed on a conveyor, and a woven material of reinforcing fibers is supplied onto the mat-like material, and further, on the woven material, Manufacture of a base material for molding a fiber-reinforced thermoplastic resin characterized by forming a mat-like material composed of reinforcing fibers and short fibers of a thermoplastic resin fiber, and then heat-pressing this laminate to form a sheet. Method.
JP27352991A 1991-09-26 1991-09-26 Base material for forming fiber-reinforced thermoplastic resin and manufacture thereof Pending JPH05245835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27352991A JPH05245835A (en) 1991-09-26 1991-09-26 Base material for forming fiber-reinforced thermoplastic resin and manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27352991A JPH05245835A (en) 1991-09-26 1991-09-26 Base material for forming fiber-reinforced thermoplastic resin and manufacture thereof

Publications (1)

Publication Number Publication Date
JPH05245835A true JPH05245835A (en) 1993-09-24

Family

ID=17529120

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27352991A Pending JPH05245835A (en) 1991-09-26 1991-09-26 Base material for forming fiber-reinforced thermoplastic resin and manufacture thereof

Country Status (1)

Country Link
JP (1) JPH05245835A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003046057A1 (en) * 2001-11-28 2003-06-05 Maruhachi Co.,Ltd Fiber-reinforced thermoplastic resin sheet, structural material comprising the same, and process for producing fiber-reinforced thermoplastic resin sheet
JP2011208039A (en) * 2010-03-30 2011-10-20 Sanko Gosei Ltd Method for shape forming and fiber-reinforced resin molded article
JP2013203786A (en) * 2012-03-27 2013-10-07 Mitsubishi Rayon Co Ltd Methods for producing thermoplastic resin-impregnated fiber prepreg and fiber-reinforced thermoplastic resin sheet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003046057A1 (en) * 2001-11-28 2003-06-05 Maruhachi Co.,Ltd Fiber-reinforced thermoplastic resin sheet, structural material comprising the same, and process for producing fiber-reinforced thermoplastic resin sheet
JP2003165851A (en) * 2001-11-28 2003-06-10 Fukui Prefecture Fiber-reinforced thermoplastic resin sheet, structural material using the same and method for producing fiber- reinforced thermoplastic resin sheet
JP2011208039A (en) * 2010-03-30 2011-10-20 Sanko Gosei Ltd Method for shape forming and fiber-reinforced resin molded article
JP2013203786A (en) * 2012-03-27 2013-10-07 Mitsubishi Rayon Co Ltd Methods for producing thermoplastic resin-impregnated fiber prepreg and fiber-reinforced thermoplastic resin sheet

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