JPH05261849A - Forming material for composite - Google Patents
Forming material for compositeInfo
- Publication number
- JPH05261849A JPH05261849A JP9193792A JP9193792A JPH05261849A JP H05261849 A JPH05261849 A JP H05261849A JP 9193792 A JP9193792 A JP 9193792A JP 9193792 A JP9193792 A JP 9193792A JP H05261849 A JPH05261849 A JP H05261849A
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- molding material
- thermoplastic resin
- reinforcing fibers
- thermoplastic
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/543—Fixing the position or configuration of fibrous reinforcements before or during moulding
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、持ち運びなどの取扱い
性に優れ、成形の際の強化繊維のよれ、ずれなどのない
コンポジット用成形材料に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding material for composites which has excellent handleability such as portability and is free from twist and shift of reinforcing fibers during molding.
【０００２】[0002]
【従来の技術】コンポジット用成形材料は種々の状態で
存在するが、成形方法によって大きく二つに分類するこ
とができる。すなわち、予めマトリクスである熱可塑
性樹脂を強化繊維に含浸させ、テ−プ状やシ−ト状の成
形材料（以下、プリプレグと称する）として提供される
ものと強化繊維と熱可塑性樹脂繊維あるいは熱可塑性
粉末などから構成されて、成形と同時に熱可塑性繊維や
粉末を溶融し、これを強化繊維に含浸させるような成形
材料（以下、ノンプリプレグと称する）がある。前者
は、既に強化繊維が熱可塑性樹脂で含浸されているた
め、それ自身可撓性がとぼしい。従って、これを成形す
る際、成形型に沿いにくい、積層し難い等の問題を有し
ている。一方、後者は、成形前には熱可塑性樹脂が強化
繊維に含浸されていないため、それ自身は可撓性に富
み、成形型の馴染みは良好で、賦形性にも優れている。Molding materials for composites exist in various states, but they can be roughly classified into two according to the molding method. That is, a reinforcing resin is impregnated with a thermoplastic resin which is a matrix in advance, and the material is provided as a tape-shaped or sheet-shaped molding material (hereinafter referred to as prepreg), the reinforcing fiber and the thermoplastic resin fiber or There is a molding material (hereinafter referred to as a non-prepreg) which is composed of a plastic powder or the like and which melts thermoplastic fibers or powder at the same time as molding and impregnates this with reinforcing fibers. The former has poor flexibility by itself because the reinforcing fibers are already impregnated with the thermoplastic resin. Therefore, when this is molded, there are problems that it is difficult to follow the mold and that it is difficult to stack. On the other hand, in the latter, since the reinforcing resin is not impregnated with the thermoplastic resin before the molding, the latter itself is rich in flexibility, the conformability of the molding die is good, and the shapeability is also excellent.
【０００３】上述のノンプリプレグとしては、強化繊維
と熱可塑性樹脂繊維とを混繊あるいは交繊などさせた糸
状のものや、あるいは強化繊維に熱可塑性樹脂を被覆さ
せたテ−プ状のもの等から成る布帛が挙げられる。ま
た、強化繊維の布帛に熱可塑性樹脂繊維を付与させた布
帛や、強化繊維の布帛に熱可塑性樹脂の粉末やフィルム
を付与させた布帛等も挙げられる。そして、これをある
寸法、形状に切り出して成形し、コンポジットにする。
しかし、従来の材料では布帛を構成する繊維の端部が解
れてしまい、取り扱いが困難である。また、布帛が目合
の大きい織物や朱子織りのようなクリンプの間隔が大き
い織物の場合、特に、繊維のよれ、ずれなどが発生する
などの問題点があった。As the above-mentioned non-prepreg, thread-like ones obtained by mixing or intermingling reinforcing fibers and thermoplastic resin fibers, or tape-like ones obtained by coating reinforcing fibers with a thermoplastic resin, etc. A fabric made of Further, a cloth obtained by adding a thermoplastic resin fiber to a cloth made of a reinforcing fiber, a cloth made by adding a powder or a film of a thermoplastic resin to a cloth made of a reinforcing fiber, and the like can be given. Then, this is cut into a certain size and shape and molded into a composite.
However, with conventional materials, the ends of the fibers that make up the fabric are loosened, making handling difficult. Further, when the fabric is a fabric having a large mesh size or a fabric having a large crimp interval such as satin weave, there is a problem that the fibers are twisted or displaced.
【０００４】[0004]
【課題を解決するための手段】本発明のコンポジット用
成形材料は強化繊維と、熱可塑性樹脂および／または熱
可塑性繊維からなる布帛を一層以上積層した成形材料に
おいて、該熱可塑性樹脂および／または熱可塑性繊維の
一部分を溶融、固化することにより、該成形材料を構成
する強化繊維の一部分が固定されていることを特徴とす
る。The molding material for composites of the present invention is a molding material obtained by laminating one or more layers of reinforcing fibers and a fabric made of thermoplastic resin and / or thermoplastic fiber. It is characterized in that a part of the reinforcing fiber constituting the molding material is fixed by melting and solidifying a part of the plastic fiber.
【０００５】以下に、本発明を詳細に説明する。なお、
本発明における布帛とは織物をはじめ、多軸積層布、編
物、組物、不織布などを示す。本発明のコンポジット用
成形材料を構成する強化繊維は主にカ−ボン、ガラスに
代表される無機繊維、アルミ、ステンレス等の金属繊維
および該成形材料を構成する熱可塑性樹脂の融点かつ／
または軟化点より充分に高い融点かつ／または軟化点を
有する有機繊維を用いることができるが、特にこれらに
限定されるものではない。また、上記の繊維は一種類以
上を同時に用いても良い。The present invention will be described in detail below. In addition,
The cloth in the present invention includes a woven cloth, a multiaxial laminated cloth, a knit, a braid, a non-woven cloth and the like. The reinforcing fibers constituting the molding material for the composite of the present invention are mainly carbon, inorganic fibers typified by glass, metal fibers such as aluminum and stainless steel, and the melting point of the thermoplastic resin constituting the molding material and / or
Alternatively, an organic fiber having a melting point and / or a softening point sufficiently higher than the softening point can be used, but it is not particularly limited thereto. Further, the above fibers may be used alone or in combination.
【０００６】また、本発明のコンポジット用成形材料を
構成する熱可塑性樹脂および／または熱可塑性繊維は、
ポリエ−テルエ−テルケトン、ポリエ−テルイミド、ポ
リイミド、ポリフェニレンサルファイド、ポリアミド、
ポリエチレンテレフタレ−ト、ポリプロピレン、ポリカ
−ボネ−トなどの熱可塑性樹脂および／またはこれらの
繊維などを用いることができるが、特にこれらに限定さ
れるものではない。Further, the thermoplastic resin and / or the thermoplastic fiber constituting the composite molding material of the present invention is
Polyether ether ketone, Polyether imide, Polyimide, Polyphenylene sulfide, Polyamide,
Thermoplastic resins such as polyethylene terephthalate, polypropylene, polycarbonate, and / or fibers thereof can be used, but are not particularly limited thereto.
【０００７】本発明のコンポジット用成形材料の形態
は、強化繊維と熱可塑性樹脂繊維とを混繊あるいは交繊
などさせた糸状のものあるいは強化繊維に熱可塑性樹脂
を被覆させたテ−プ状のもの等から成る布帛、あるいは
強化繊維の布帛に熱可塑性樹脂繊維を付与させた布帛、
あるいは強化繊維の布帛に熱可塑性樹脂の粉末やフィル
ムを付与させた布帛等から構成されるものであるが、特
にこれらの布帛に限定されるものではない。The form of the molding material for composites of the present invention is a thread-like one in which reinforcing fibers and thermoplastic resin fibers are mixed or mixed, or a tape-like one in which reinforcing fibers are coated with a thermoplastic resin. A cloth made of things, or a cloth of reinforcing fibers to which thermoplastic resin fibers are added,
Alternatively, it is composed of a cloth of reinforcing fibers to which a powder of a thermoplastic resin or a film is applied, or the like, but is not particularly limited to these cloths.
【０００８】本発明のコンポジット用成形材料は、上述
の布帛を一層以上積層し、該成形材料を構成する熱可塑
性樹脂および／または熱可塑性繊維の一部分を溶融、固
化することにより、該成形材料を構成する強化繊維の一
部分が固定されたものである。The composite molding material of the present invention is obtained by laminating one or more layers of the above-mentioned cloth, and melting and solidifying a part of the thermoplastic resin and / or the thermoplastic fibers constituting the molding material. A part of the constituent reinforcing fibers is fixed.
【０００９】熱可塑性樹脂および／または熱可塑性繊維
を溶融、固化する部分としては、コンポジット用成形材
料の端部かつ／または中央部分が考えられるが特にこれ
に限定されるものではない。また、熱可塑性樹脂および
／または熱可塑性繊維を溶融、固化する部分の幅は２ｍ
ｍから５ｍｍ、長さは少なくとも４ｍｍ以上であること
が好ましいが、特にこれに限定されるものではない。す
なわち、該成形材料を構成する強化繊維の端部が解れる
ことがなく、かつ／または、該強化繊維のよれ、ずれな
どが発生しないような大きさであればよい。The portion for melting and solidifying the thermoplastic resin and / or the thermoplastic fiber may be the end portion and / or the central portion of the molding material for composite, but is not particularly limited thereto. Further, the width of the portion for melting and solidifying the thermoplastic resin and / or the thermoplastic fiber is 2 m.
It is preferable that the length is from m to 5 mm and the length is at least 4 mm or more, but it is not particularly limited thereto. That is, the size may be such that the end portions of the reinforcing fibers constituting the molding material are not loosened and / or the reinforcing fibers are not twisted or displaced.
【００１０】熱可塑性樹脂および／または熱可塑性繊維
を溶融、固化するための加熱方法としては、棒ヒ−タな
どの接触加熱が最も容易な加熱方法であるが、赤外線、
熱風などの非接触加熱、また、コンポジット用成形材料
を構成する強化繊維によっては電磁誘導、電磁誘電、抵
抗線などの自己発熱による加熱方法も使用することがで
き、特に、これらの手段に限定されるものではない。As a heating method for melting and solidifying a thermoplastic resin and / or a thermoplastic fiber, contact heating with a rod heater or the like is the easiest heating method.
Non-contact heating such as hot air, or a heating method by self-heating such as electromagnetic induction, electromagnetic dielectric, and resistance wire can be used depending on the reinforcing fiber constituting the molding material for composite, and is particularly limited to these means. Not something.
【００１１】接触加熱を行なう場合は、大凡、コンポジ
ット用成形材料を構成する熱可塑性樹脂および／または
熱可塑性繊維の融点、かつ／または軟化点より２０℃か
ら５０℃くらい高い温度に棒ヒ−タなどの表面温度を設
定し、熱可塑性樹脂および／または熱可塑性繊維を溶
融、固化することが好ましいが、該成形材料の構造、目
付け、嵩、該熱可塑性樹脂および／または熱可塑性繊維
の溶融時における性質などを充分に検討した上で行なう
ことが必要である。When contact heating is carried out, the rod heater is generally heated to a temperature about 20 to 50 ° C. higher than the melting point and / or the softening point of the thermoplastic resin and / or the thermoplastic fiber constituting the molding material for composites. It is preferable to set the surface temperature such as to melt and solidify the thermoplastic resin and / or the thermoplastic fiber, but the structure of the molding material, the basis weight, the bulk, the melting of the thermoplastic resin and / or the thermoplastic fiber It is necessary to fully study the properties of the above.
【００１２】[0012]
【作用】本発明のコンポジット用成形材料は、強化繊維
と熱可塑性樹脂および／または熱可塑性繊維からなる布
帛を一層以上積層し、該成形材料を構成する熱可塑性樹
脂および／または熱可塑性繊維の一部分を溶融、固化す
ることにより、該成形材料を構成する強化繊維の一部分
が固定されているため、該成形材料の端部および／また
は中央部においては、該成形材料を構成する強化繊維の
解れがなく、取扱いが容易になる。また、強化繊維を固
定するために熱可塑性樹脂および／または熱可塑性繊維
を用いているので、異物の混入がなく、容易に、かつ短
時間に該成形材料を得ることができる。しかも、該成形
材料を構成する強化繊維の一部分が固定されているだけ
なので、該成形材料自身はフレキシビリティに富み賦形
性に優れた状態を保っている。The composite molding material of the present invention has a structure in which a reinforcing fiber and a cloth comprising a thermoplastic resin and / or a thermoplastic fiber are laminated in one or more layers to form a part of the thermoplastic resin and / or the thermoplastic fiber constituting the molding material. Since a part of the reinforcing fibers constituting the molding material is fixed by melting and solidifying the, the unraveling of the reinforcing fibers constituting the molding material at the end portion and / or the central portion of the molding material. And easy to handle. Further, since the thermoplastic resin and / or the thermoplastic fiber is used to fix the reinforcing fiber, the molding material can be obtained easily and in a short time without mixing of foreign matter. In addition, since only a part of the reinforcing fibers constituting the molding material is fixed, the molding material itself is rich in flexibility and excellent in shapeability.
【００１３】[0013]
実施例１ ガラス繊維（６５重量％）とポリエチレンテレフタレ−
ト繊維（４５重量％）との混繊糸から成る幅が１ｍ、長
さが１０ｍの平織織物（目付け５３０ｇ／ｍ2）から、
一辺が５００ｍｍの正方形のコンポジット用成形材料を
１０枚得た。なお、その手順は以下の通りであった。ま
ず、半田こてを用いてこの先端表面温度を、ポリエチレ
ンテレフタレ−トの融点より約２０度だけ高い温度に設
定した。次に、平織織物を台上のテフロン・シ−トの上
に広げて、半田こての先端を該織物に軽く押し当て、該
織物を構成するポリエチレンテレフタレ−ト繊維を溶
融、固化させた。なお、その部分は、一辺が５００ｍｍ
の正方形の外周であった。そして、溶融、固化させた部
分の中央部を各種の鋏で切断し、コンポジット用成形材
料を得た。Example 1 Glass fiber (65% by weight) and polyethylene terephthalate
From a plain woven fabric (weight per unit area: 530 g / m 2 ) having a width of 1 m and a length of 10 m, which is composed of a mixed yarn with a fiber (45% by weight),
Ten pieces of square molding material having a side of 500 mm were obtained. The procedure was as follows. First, a soldering iron was used to set the tip surface temperature to a temperature higher than the melting point of polyethylene terephthalate by about 20 degrees. Then, the plain woven fabric was spread on a Teflon sheet on a table, and the tip of a soldering iron was lightly pressed against the fabric to melt and solidify the polyethylene terephthalate fibers constituting the fabric. . The side is 500 mm
It was the outer circumference of the square. Then, the central portion of the melted and solidified portion was cut with various scissors to obtain a molding material for composite.
【００１４】比較例１ 実施例１と同様に、ガラス繊維（６５重量％）とポリエ
チレンテレフタレ−ト繊維（４５重量％）との混繊糸か
ら成る幅が１ｍ、長さが１０ｍの平織織物（目付け５３
０ｇ／ｍ2 ）から、一辺が５００ｍｍの正方形のコンポ
ジット用成形材料を１０枚得た。なお、その手順は以下
の通りであった。平織織物を台上に広げて、粘着テ−プ
を一辺が５００ｍｍの正方形の外周に貼付けた。そし
て、粘着テ−プが貼付けられた部分を各部の鋏で切断
し、コンポジット用成形材料を得た。Comparative Example 1 Similar to Example 1, a plain woven fabric having a width of 1 m and a length of 10 m, which is composed of a mixed yarn of glass fiber (65% by weight) and polyethylene terephthalate fiber (45% by weight). (Unit weight 53
From 0 g / m 2 ), 10 pieces of a square molding material having a side of 500 mm were obtained. The procedure was as follows. The plain woven fabric was spread on a table, and an adhesive tape was attached to the outer periphery of a square having a side of 500 mm. Then, the portion to which the adhesive tape was attached was cut with scissors at each portion to obtain a molding material for composite.
【００１５】比較例２ 実施例１と同様に、ガラス繊維（６５重量％）とポリエ
チレンテレフタレ−ト繊維（４５重量％）との混繊糸か
ら成る幅が１ｍ、長さが１０ｍの平織織物（目付け５３
０ｇ／ｍ2 ）から、一辺が５００ｍｍの正方形のコンポ
ジット用成形材料を１０枚得た。なお、その手順は以下
の通りであった。平織織物を台上に広げて、市販のハン
ドミシンで、一辺が５００ｍｍの正方形の外周の内側の
約３ｍｍの部分を市販の木綿糸を用いて縫製した。そし
て縫製した部分の間を鋏で切断し、コンポジット用成形
材料を得た。Comparative Example 2 As in Example 1, a plain woven fabric having a width of 1 m and a length of 10 m made of a mixed yarn of glass fiber (65% by weight) and polyethylene terephthalate fiber (45% by weight). (Unit weight 53
From 0 g / m 2 ), 10 pieces of a square molding material having a side of 500 mm were obtained. The procedure was as follows. The plain woven fabric was spread on a table, and a commercially available hand sewing machine sewed a commercially available cotton thread to a portion of about 3 mm inside the outer periphery of a square having a side of 500 mm. Then, the sewn portions were cut with scissors to obtain a molding material for composite.
【００１６】実施例１ならびに比較例１、２の結果を比
較し、これを表１に示した。The results of Example 1 and Comparative Examples 1 and 2 were compared and shown in Table 1.
【００１７】[0017]
【表１】 [Table 1]
【００１８】[0018]
【発明の効果】本発明のコンポジット用成形材料は、強
化繊維と熱可塑性樹脂および／または熱可塑性繊維から
なる布帛の一部分を溶融、固化することにより、該成形
材料を構成する強化繊維の一部分が固定されるため、該
成形材料の端部においては、該成形材料を構成する繊維
の解れがなくなる。INDUSTRIAL APPLICABILITY The composite molding material of the present invention is such that a part of the reinforcing fiber constituting the molding material is obtained by melting and solidifying a part of the cloth composed of the reinforcing fiber and the thermoplastic resin and / or the thermoplastic fiber. Since it is fixed, the fibers constituting the molding material do not come loose at the ends of the molding material.
【００１９】また、解れが無いので取扱いが容易にな
る。また、該成形材料を構成する熱可塑性樹脂および／
または熱可塑性繊維の一部分を溶融、固化することによ
り、該成形材料を構成する強化繊維の一部分を固定する
ため、テープ使用の際の接着剤などの異物の混入がな
く、容易に、かつ、短時間に該成形材料が得ることがで
きる。Further, since there is no loosening, the handling becomes easy. In addition, the thermoplastic resin and // which constitutes the molding material
Alternatively, since a part of the reinforcing fiber constituting the molding material is fixed by melting and solidifying a part of the thermoplastic fiber, no foreign matter such as an adhesive is mixed when the tape is used, and it is easy and short. The molding material can be obtained in time.
【００２０】更に、該成形材料を構成する強化繊維の一
部分が固定されているだけなので、該成形材料自身は柔
らかく、賦形性に優れた状態が保たれている。Furthermore, since only a part of the reinforcing fibers constituting the molding material is fixed, the molding material itself is kept soft and excellent in shapeability.
【００２１】[0021]
【図１】本発明に従う一実施例の概略図であるFIG. 1 is a schematic diagram of one embodiment according to the present invention.
１．強化繊維と熱可塑性繊維からなる布帛 ２．熱可塑性繊維を溶融、固化した部分 1. Cloth composed of reinforcing fibers and thermoplastic fibers 1. Part where thermoplastic fiber is melted and solidified
Claims (1)
熱可塑性繊維からなる布帛を一層以上積層した成形材料
において、該熱可塑性樹脂および／または熱可塑性繊維
の一部分を溶融、固化することにより、該成形材料を構
成する強化繊維の一部分が固定されていることを特徴と
するコンポジット用成形材料。1. A molding material obtained by laminating one or more fabrics comprising reinforcing fibers and a thermoplastic resin and / or a thermoplastic fiber, by melting and solidifying a part of the thermoplastic resin and / or the thermoplastic fiber. A molding material for composites, wherein a part of the reinforcing fibers constituting the molding material is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9193792A JPH05261849A (en) | 1992-03-16 | 1992-03-16 | Forming material for composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9193792A JPH05261849A (en) | 1992-03-16 | 1992-03-16 | Forming material for composite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05261849A true JPH05261849A (en) | 1993-10-12 |
Family
ID=14040513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9193792A Pending JPH05261849A (en) | 1992-03-16 | 1992-03-16 | Forming material for composite |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05261849A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015086834A1 (en) * | 2013-12-13 | 2015-06-18 | Airbus Group Sas | Method for production of a part from thermoplastic composite material |
| JP2017014653A (en) * | 2015-06-30 | 2017-01-19 | 旭化成株式会社 | Fabric |
| JP2018511069A (en) * | 2015-02-10 | 2018-04-19 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Image recording system and automobile |
-
1992
- 1992-03-16 JP JP9193792A patent/JPH05261849A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015086834A1 (en) * | 2013-12-13 | 2015-06-18 | Airbus Group Sas | Method for production of a part from thermoplastic composite material |
| FR3014733A1 (en) * | 2013-12-13 | 2015-06-19 | Eads Europ Aeronautic Defence | PROCESS FOR MANUFACTURING A THERMOPLASTIC COMPOSITE MATERIAL PART |
| CN105848861A (en) * | 2013-12-13 | 2016-08-10 | 空客集团有限公司 | Method for production of a part from thermoplastic composite material |
| US10773475B2 (en) | 2013-12-13 | 2020-09-15 | Airbus Sas | Process for manufacturing a thermoplastic composite part |
| JP2018511069A (en) * | 2015-02-10 | 2018-04-19 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Image recording system and automobile |
| JP2017014653A (en) * | 2015-06-30 | 2017-01-19 | 旭化成株式会社 | Fabric |
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