JP3386158B2 - Molding materials and filament wound moldings - Google Patents
Molding materials and filament wound moldingsInfo
- Publication number
- JP3386158B2 JP3386158B2 JP30227892A JP30227892A JP3386158B2 JP 3386158 B2 JP3386158 B2 JP 3386158B2 JP 30227892 A JP30227892 A JP 30227892A JP 30227892 A JP30227892 A JP 30227892A JP 3386158 B2 JP3386158 B2 JP 3386158B2
- Authority
- JP
- Japan
- Prior art keywords
- tape
- shaped molding
- molding material
- reinforcing fiber
- thermoplastic resin
- 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 - Fee Related
Links
Landscapes
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は熱可塑性樹脂をマトリッ
クスとする繊維強化複合材料の成形材料およびフィラメ
ントワインディング成形品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 a fiber-reinforced composite material containing a thermoplastic resin as a matrix and a filament winding molding.
【０００２】[0002]
【従来技術】熱可塑性樹脂を強化繊維に含浸したテープ
状プリプレグが市販されているが、これらは剛直であ
り、織物、組み物あるいはシート状物を作ることは困難
であり、造形性に劣る。また、これらはフィラメントワ
インディング（以下ＦＷと略す）成形に用いる場合、そ
の剛直さのため、マンドレルの軸方向に対して寝かせた
ヘリカル巻が困難であり、巻くことができても層間にボ
イドが生じ易く、そのＦＷ成形品の軸方向の強度が足り
ないものしかできない等の問題がある。2. Description of the Related Art Tape-like prepregs in which a reinforcing fiber is impregnated with a thermoplastic resin are commercially available, but these are rigid and it is difficult to make a woven fabric, a braid or a sheet-like product, and the formability is poor. Also, when these are used for filament winding (hereinafter abbreviated as FW) forming, it is difficult to lay them helically in the axial direction of the mandrel due to their rigidity, and voids occur between layers even if they can be wound. However, there is a problem in that only the FW molded product having insufficient axial strength can be produced.
【０００３】一方、熱可塑性樹脂を繊維状あるいは粉体
等にして強化繊維と組合せたフレキシブルな材料も開発
されているが、組合せ段階で不均一を生じやすい。この
ため、マトリックスを補強繊維中に均一に含浸させ、ボ
イドのない成形品を確実に得るには、含浸成形工程にお
いて時間をかけた加圧が必要となり、工程コストが高く
なるという欠点がある。また、ＦＷに関しても圧力を高
くし、加圧時間を長くする必要があり成形サイクルが長
くなる等の問題がある。On the other hand, a flexible material in which a thermoplastic resin is made into a fibrous or powder form and combined with reinforcing fibers has been developed, but unevenness is likely to occur at the combining stage. Therefore, in order to uniformly impregnate the reinforcing fibers with the matrix and reliably obtain a void-free molded product, it is necessary to apply pressure over time in the impregnation molding process, which results in a high process cost. Further, with respect to FW as well, there is a problem in that it is necessary to increase the pressure and lengthen the pressurizing time, which lengthens the molding cycle.
【０００４】[0004]
【発明が解決しようとする課題】本発明は前記事情を考
慮してなされたもので、その目的は、ＦＷ成形ができる
ようなフレキシビリティを有する、繊維強化熱可塑性樹
脂のテープ状成形材料を提供し、優れた力学特性を有す
るＦＷ成形体の形成を可能にすることである。上記課題
を解決するため鋭意研究を行った結果本発明を完成する
に至った。The present invention has been made in view of the above circumstances, and an object thereof is to provide a tape-shaped molding material of a fiber-reinforced thermoplastic resin, which has flexibility so that FW molding is possible. However, it is possible to form a FW compact having excellent mechanical properties. As a result of intensive research to solve the above problems, the present invention has been completed.
【０００５】[0005]
【課題を解決するための手段】すなわち、本発明は、一
つのダイを用いて得られるテープ状成形材料であって、
Ｅ・Ｓ・ｍ・ａ2≦８０の条件式を満たし且つ空隙率が
８％以下であり、モノフィラメント数が１６００本以上
の強化繊維を熱可塑性樹脂で含浸して得られることを特
徴とするテープ状成形材料及び前記テープ状成形材料を
用いてＦＷ成形を行うことを特徴とするＦＷ成形品を提
供するものである。
但し、Ｅ：強化繊維モノフィラメントの伸長弾性率（ｋｇｆ／ｍｍ2）
Ｓ：強化繊維モノフィラメントの断面積（ｍｍ2）
ｍ：テープ状成形材料中の強化繊維モノフィラメントの本数（−）
ａ：テープ状成形材料断面の厚さの半分（ｍｍ）That SUMMARY OF THE INVENTION The present invention is one
A tape-shaped molding material obtained by using two dies,
The conditional expression of E · S · m · a 2 ≦ 80 is satisfied, the porosity is 8% or less, and the number of monofilaments is 1600 or more.
The present invention provides a tape-shaped molding material obtained by impregnating the reinforcing fiber of 1. with a thermoplastic resin, and an FW molded article characterized by performing FW molding using the tape-shaped molding material. However, E: Reinforcing fiber monofilament elongation elastic modulus (kgf / mm 2 ) S: Reinforcing fiber monofilament cross-sectional area (mm 2 ) m: Number of reinforcing fiber monofilaments in the tape-shaped molding material (-) a: Tape-shaped molding Half the thickness of material cross section (mm)
【０００６】以下、本発明を図面に基づいて具体的に説
明するが、本発明はこれらにより何ら限定されるもので
はない。Hereinafter, the present invention will be specifically described with reference to the drawings, but the present invention is not limited thereto.
【０００７】本発明に用いられる強化繊維としては、ガ
ラス繊維、炭素繊維、アラミド繊維、セラミックス繊
維、金属繊維等の連続繊維が挙げられ、これらを２種以
上併用して用いてもよい。但し、強化繊維は特にこれら
に限定されるわけではない。これらの強化繊維は熱可塑
性樹脂との接着を良くするために表面処理がなされてい
ることが好ましい。使用するモノフィラメント数は１６
００〜２４０００本、より好ましくは１６００〜１２０
００本であり、またモノフィラメントの直径は好ましく
は３〜５０μｍ、より好ましくは６〜２４μｍである
が、特にこの範囲に限定されるものではない。Examples of the reinforcing fiber used in the present invention include continuous fibers such as glass fiber, carbon fiber, aramid fiber, ceramic fiber and metal fiber, and two or more kinds of them may be used in combination. However, the reinforcing fiber is not particularly limited to these. These reinforcing fibers are preferably surface-treated in order to improve the adhesion with the thermoplastic resin. The number of monofilaments used is 16
00-24000 This, more preferably from 1600 to 120
The number of monofilaments is preferably 0 to 3, and the diameter of the monofilament is preferably 3 to 50 μm, more preferably 6 to 24 μm, but is not particularly limited to this range.
【０００８】一方、熱可塑性樹脂としてはポリエチレ
ン、ポリプロピレンおよびその共重合体や変性体を含む
ポリオレフィン系、ナイロン６、ナイロン６６、ナイロ
ン１２等のポリアミド系、ポリエチレンテレフタレー
ト、ポリブチレンテレフタレート等のポリエステル系、
ポリカーボネート、熱可塑性ポリウレタン、ポリエーテ
ルイミド、ポリフェニレンサルファイド、ポリエーテル
ケトン等が挙げられる。但し、熱可塑性樹脂は特にこれ
らに限定されるわけではない。On the other hand, examples of the thermoplastic resin include polyolefins including polyethylene, polypropylene and copolymers and modified products thereof, polyamides such as nylon 6, nylon 66 and nylon 12, polyesters such as polyethylene terephthalate and polybutylene terephthalate,
Examples thereof include polycarbonate, thermoplastic polyurethane, polyetherimide, polyphenylene sulfide, and polyether ketone. However, the thermoplastic resin is not particularly limited to these.
【０００９】図１に本発明におけるテープ状成形材料の
代表例の断面図を模式的に示した。テープ状成形材料
（１）はマトリックスとなる熱可塑性樹脂（２）中に強
化繊維（３）が含浸されたものである。Ｌ1 はテープ状
成形材料断面の幅であり、Ｌ2 はテープ状成形材料断面
の厚さである。テープ状成形材料の断面形状は必ずしも
長方形でなくてもよく、楕円形状であってもよいが、そ
の形状は本発明の趣旨内容から外れない範囲でとくに限
定されるものではない。惰円形状の場合、長径がＬ1 、
短径がＬ2 となる。FIG. 1 schematically shows a cross-sectional view of a typical example of the tape-shaped molding material according to the present invention. The tape-shaped molding material (1) is obtained by impregnating a reinforcing fiber (3) into a thermoplastic resin (2) serving as a matrix. L1 is the width of the tape-shaped molding material cross section, and L2 is the thickness of the tape-shaped molding material cross section. The cross-sectional shape of the tape-shaped molding material may not necessarily be rectangular or may be elliptical, but the shape is not particularly limited as long as it does not deviate from the gist of the present invention. In the case of the inertia circle shape, the major axis is L1,
The minor axis is L2.
【００１０】本発明においては、強化繊維のモノフィラ
メントの伸張弾性率をＥ（kgf ／mm 2 ）、強化繊維モノ
フィラメントの断面積をＳ（mm2 ）、テープ状成形材料
中の強化繊維モノフィラメントの本数をｍ（−）、テー
プ状成形材料断面の厚さ（すなわちＬ2 ）の半分をａ
（mm）としたときのＥ・Ｓ・ｍ・ａ2 で計算される値が
８０以下であることが必要であり、５０以下であればよ
り好ましい。Ｅ・Ｓ・ｍ・ａ2 が８０を超える場合に
は、生成したテープ状成形材料のフレキシビリティーが
損なわれ、ＦＷ成形においてヘリカル巻きが困難になる
ためである。In the present invention, a monofilament of reinforcing fibers
The elastic modulus of the ment is E (kgf / mm 2), Reinforced fiber mono
The cross-sectional area of the filament is S (mm2), Tape-shaped molding material
The number of reinforcing fiber monofilaments inside is m (-),
Half of the thickness of the cross section of the molding material (ie L2) is a
(Mm) E ・ S ・ m ・ a2The value calculated by
Must be 80 or less, 50 or less
More preferable. E ・ S ・ m ・ a2Is over 80
Has the flexibility of the tape-shaped molding material produced.
Damaged, making helical winding difficult in FW molding
This is because.
【００１１】テープ状成形材料中の強化繊維の含有率
は、２０〜８０体積％が好ましい。強化繊維が２０体積
％以下の場合には強化効果が有効に発揮できず、また８
０体積％以上になると含浸の際にボイドが発生しやすく
なるためである。The content of the reinforcing fibers in the tape-shaped molding material is preferably 20 to 80% by volume. If the reinforcing fiber content is 20% by volume or less, the reinforcing effect cannot be exerted effectively, and 8
This is because if it is 0% by volume or more, voids are likely to occur during impregnation.
【００１２】テープ状成形材料の製造方法、すなわち複
数の強化繊維モノフィラメントを熱可塑性樹脂で含浸被
覆する方法は特に規定されないが、例えば、図２に示す
ようにクロスヘッドダイを用いる方法が挙げられる。こ
こでテープ形状を一定に保つためや含浸をより向上させ
るために加圧賦形ロールを用いることが好ましい。The method for producing the tape-shaped molding material, that is, the method for impregnating and coating a plurality of reinforcing fiber monofilaments with a thermoplastic resin is not particularly specified, but for example, a method using a crosshead die as shown in FIG. 2 can be mentioned. Here, in order to keep the tape shape constant and to improve the impregnation, it is preferable to use a pressure shaping roll.
【００１３】本発明において、強化繊維モノフィラメン
トを熱可塑性樹脂で含浸する程度は完全でなくてもよ
い。後の成形過程に於いて、熱可塑性樹脂がさらに溶融
され、含浸の程度が向上するからである。In the present invention, the degree of impregnation of the reinforcing fiber monofilament with the thermoplastic resin does not have to be complete. This is because the thermoplastic resin is further melted and the degree of impregnation is improved in the subsequent molding process.
【００１４】しかしながら、テープ状成形材料の空隙率
が８％を越えると、後の成形過程においても完全に含浸
することができず、成形品にボイドが残り機械物性が低
下する。従って、空隙率は８％以下が必要であり、４％
以下であればより好ましい。ここで空隙率とは、テープ
状成形材料を長さ１０mmに切断し、それを約２ｇ程度集
め、水に浸漬後の重量増加分をもとのテープ状成形材料
の重量で除した値を百分率で表わしたものである。この
際、水に浸漬しやすくするために界面活性剤を少量加え
ることが好ましく、また秤量の誤差を除くため表面に付
着した水分は拭いて除去しなければならない。However, if the porosity of the tape-shaped molding material exceeds 8%, the tape cannot be completely impregnated in the subsequent molding process, leaving voids in the molded product and degrading mechanical properties. Therefore, the porosity must be 8% or less, and 4%
The following is more preferable. Here, the porosity is a value obtained by cutting the tape-shaped molding material to a length of 10 mm, collecting about 2 g of it, and dividing the weight increase after immersion in water by the weight of the original tape-shaped molding material as a percentage. It is represented by. At this time, it is preferable to add a small amount of a surfactant for facilitating the immersion in water, and the water adhering to the surface must be removed by wiping in order to eliminate an error in weighing.
【００１５】本発明のテープ状成形材料の幅は、成形品
の大きさに応じて決定されなければならない。しかしな
がら、あまり広すぎるとＦＷ成形のヘリカル巻が困難と
なる。よって、２０mm以下が好ましく、１０mm以下がよ
り好ましいが、これに限定されるものではない。The width of the tape-shaped molding material of the present invention must be determined according to the size of the molded product. However, if it is too wide, it becomes difficult to perform helical winding for FW molding. Therefore, it is preferably 20 mm or less, more preferably 10 mm or less, but not limited to this.
【００１６】一方、本発明のテープ状成形材料の厚さに
関しては、本発明のＥ・Ｓ・ｍ・ａ 2 ≦８０の条件式を
満たす範囲であればよい。例えば強化繊維に単糸径１３
μｍ、繊維本数１６００本、伸張弾性率７４００kgf/mm
2 のガラス繊維を用いた場合、そのテープの厚さは０．
４５mm以下であればよいこととなる。ただし、Ｅ・Ｓ・
ｍ・ａ2 ≦５０の場合、すなわちテープの厚さが０．３
５mm以下であればより好ましい。On the other hand, the thickness of the tape-shaped molding material of the present invention
As for the E.S.m.a of the present invention, 2Conditional expression of ≦ 80
The range may be satisfied. For example, for reinforcing fiber, single yarn diameter 13
μm, number of fibers 1600, elongation elastic modulus 7400 kgf / mm
2When the glass fiber of No. 1 is used, the thickness of the tape is 0.
It should be 45 mm or less. However, E ・ S ・
ma2When ≦ 50, that is, the tape thickness is 0.3
It is more preferably 5 mm or less.
【００１７】本発明のテープ状成形材料は、製織、製紐
等のテキスタイル加工を経て成形され、あるいは、プル
トルージョン成形またはＦＷ成形など種々の成形法に供
せられ、熱可塑性複合材料を得ることができる。その中
でも、本発明のテープ状成形材料はＦＷ成形に供される
ことが最も好ましく、本発明の効果が顕著に発揮される
こととなる。すなわち、熱硬化性ＦＷ成形品は、通常、
マンドレル回転軸に対して５４度近辺の巻き角のヘリカ
ル巻きを行い、軸方向の曲げ物性を確保しているが、熱
可塑性テープ状成形材料を用いた場合には、その剛直さ
のため、ヘリカル巻きが困難となる。また、ヘリカル巻
きの場合、巻いたテープ間の間隔が開き、上層と下層の
重なり部でテープ厚さに対応するボイドが生じ易くな
る。しかし、本発明によるテープ状成形材料を用いる
と、フレキシビリティーに富むため５４度近辺のヘリカ
ル巻にも対応でき、且つその薄さゆえにボイドが発生し
にくい。よって、得られる優れた物性のＦＷ成形品を得
ることが可能となる。さらに、本発明によるテープ状成
形材料は小型のＦＷ品や、複雑形状のＦＷ品にも充分対
応することが可能である。The tape-shaped molding material of the present invention is molded through textile processing such as weaving and stringing, or is subjected to various molding methods such as pultrusion molding or FW molding to obtain a thermoplastic composite material. You can Among them, the tape-shaped molding material of the present invention is most preferably used for FW molding, and the effect of the present invention is remarkably exhibited. That is, the thermosetting FW molded product is usually
Helical winding with a winding angle of around 54 degrees with respect to the mandrel rotation axis is performed to ensure bending properties in the axial direction. However, when a thermoplastic tape-shaped molding material is used, it is rigid and therefore helical. Winding becomes difficult. Further, in the case of helical winding, a gap between the wound tapes is increased, and a void corresponding to the tape thickness is likely to occur at the overlapping portion of the upper layer and the lower layer. However, when the tape-shaped molding material according to the present invention is used, since it is highly flexible, it can be used for helical winding around 54 degrees, and voids are less likely to occur due to its thinness. Therefore, it is possible to obtain an FW molded product having excellent physical properties. Furthermore, the tape-shaped molding material according to the present invention can be sufficiently applied to small FW products and FW products having complicated shapes.
【００１８】ＦＷ成形方法としては、特に限定されない
が、図３に示すような方法が好ましい。すなわち、クリ
ル（１３）から供給されるテープ状成形材料（９）に適
度なテンションを与えつつ、該テープ状成形材料を、赤
外線ヒーター、熱風、火炎等（１４）により予備加熱し
た後、同様の手段（１５）により溶融しながらマンドレ
ル（１６）に供給する。該マンドレルとの接触点におい
て、圧縮ロール（１７）で圧縮一体化し成形品を得るも
のである。ここで、ヒーター、熱風、火炎等はテープ及
び圧縮ロールと共にトラバースしなければならない。た
だし、圧縮ロール長が成形品長と同じであれば圧縮ロー
ルのトラバースの必要はない。また、溶融方法は、テー
プ状成形材料の熱可塑性樹脂の融点や、成形速度に応じ
て選択し、充分熱可塑性樹脂が溶融しなければならな
い。さらに、巻き初めに、マンドレルに接触した時にテ
ープ状成形材料がすぐに固化し、上層と一体化しにくく
なることを防ぐために、マンドレルをヒーター等で予熱
しておくのが好ましい。The FW molding method is not particularly limited, but the method shown in FIG. 3 is preferable. That is, while applying appropriate tension to the tape-shaped molding material (9) supplied from the krill (13), the tape-shaped molding material is preheated by an infrared heater, hot air, flame or the like (14), It is supplied to the mandrel (16) while being melted by the means (15). At the point of contact with the mandrel, a compression roll (17) is used to perform compression integration to obtain a molded product. Here, the heater, hot air, flame, etc. must be traversed with the tape and the compression roll. However, if the length of the compression roll is the same as the length of the molded product, it is not necessary to traverse the compression roll. The melting method is selected according to the melting point of the thermoplastic resin of the tape-shaped molding material and the molding speed, and the thermoplastic resin must be melted sufficiently. Further, at the beginning of winding, it is preferable to preheat the mandrel with a heater or the like in order to prevent the tape-shaped molding material from solidifying immediately when it comes into contact with the mandrel and becoming difficult to be integrated with the upper layer.
【００１９】[0019]
【実施例】以下に本発明の実施例を示すが、本発明はこ
れらに何ら限定されるものではない。EXAMPLES Examples of the present invention will be shown below, but the present invention is not limited thereto.
【００２０】[0020]
【実施例１】強化繊維にモノフィラメント径１３μｍ、
フィラメント本数１６００本、伸張弾性率７４００kgf/
mm2 のガラス繊維１ストランドを用いた。マトリックス
として、ＭＦＩ＝６０ｇ／１０分、０．１重量％のマレ
イン酸で変性したポリプロピレンを用いた。上記ガラス
繊維１ストランドを図２に示すダイに供給し、一方押出
機より上記ポリプロピレンを溶融して供給し、ガラス繊
維ストランドに含浸させ、さらにダイを出た後、２対の
圧縮ロールで圧縮含浸及び偏平化を行いテープ状成形材
料を得た。テープ状成形材料の製造速度は１０ｍ／分で
行った。得られたテープ状成形材料は、ガラス繊維含有
率４０体積％、幅３．２mm、厚さ０．１８mm、空隙率
２．５％であり、Ｅ・Ｓ・ｍ・ａ2 ＝１２．７であっ
た。得られたテープ状成形材料を図３に示すＦＷ成形工
程に供した。マンドレルの直径は３０mm、マンドレルを
予めドライヤーで１５０℃まで予熱しておいた。テープ
状成形材料を赤外線ヒーターで約１５０℃に予熱した
後、溶融は、３２０℃の熱風で行い、巻き角は５４度の
ヘリカル巻きとし、テープ速度は３ｍ／分で行った。圧
縮ロールの圧力は７kg／cmで行った。得られたパイプは
外径３５mm、内径３０mm、長さ２００mmで、断面を顕微
鏡で観察したところ、ボイドは見られなかった。Example 1 A reinforcing fiber having a monofilament diameter of 13 μm,
Number of filaments 1600, Elastic modulus of extension 7400kgf /
One strand of glass fiber of mm 2 was used. As the matrix, MFI = 60 g / 10 min, polypropylene modified with 0.1% by weight of maleic acid was used. One strand of the above glass fiber was fed to the die shown in FIG. 2, while the above polypropylene was melted and fed from the extruder to impregnate the glass fiber strand, and after leaving the die, compression impregnation was performed with two pairs of compression rolls. And flattened to obtain a tape-shaped molding material. The production speed of the tape-shaped molding material was 10 m / min. The obtained tape-shaped molding material had a glass fiber content of 40% by volume, a width of 3.2 mm, a thickness of 0.18 mm, and a porosity of 2.5%, and E · S · m · a 2 = 12.7. there were. The obtained tape-shaped molding material was subjected to the FW molding step shown in FIG. The mandrel had a diameter of 30 mm, and the mandrel was preheated to 150 ° C. with a dryer. The tape-shaped molding material was preheated to about 150 ° C. with an infrared heater, and then melted with hot air of 320 ° C., helical winding with a winding angle of 54 °, and tape speed of 3 m / min. The pressure of the compression roll was 7 kg / cm. The obtained pipe had an outer diameter of 35 mm, an inner diameter of 30 mm, and a length of 200 mm, and no cross section was observed with a microscope, and no void was found.
【００２１】[0021]
【比較例１】実施例１のテープ状成形材料製造時にガラ
ス繊維を２ストランド用い、あとは同じ条件でテープ状
成形材料を得た。得られたテープ状成形材料は、ガラス
繊維含有率３９体積％、幅２．９mm、厚さ０．４mm、空
隙率５．２％であり、Ｅ・Ｓ・ｍ・ａ2 ＝１２５．７で
あった。実施例１と同様にＦＷ成形に供したが、剛直す
ぎるため、巻き角５４度のヘリカル巻きを行うことは不
可能であった。COMPARATIVE EXAMPLE 1 Two strands of glass fiber were used during the production of the tape-shaped molding material of Example 1, and a tape-shaped molding material was obtained under the same conditions. The obtained tape-shaped molding material had a glass fiber content of 39% by volume, a width of 2.9 mm, a thickness of 0.4 mm and a porosity of 5.2%, and E · S · m · a 2 = 125.7. there were. Although it was subjected to FW molding in the same manner as in Example 1, it was impossible to perform helical winding with a winding angle of 54 degrees because it was too rigid.
【００２２】[0022]
【比較例２】実施例１のテープ状成形材料製造時に圧縮
ロールを用いず、あとは同じ条件でテープ状成形材料を
得た。得られたテープ状成形材料は、ガラス繊維含有率
４２体積％、幅２．８mm、厚さ０．２mm、空隙率１１．
２％であり、Ｅ・Ｓ・ｍ・ａ 2 ＝１５．７であった。実
施例１と同様にＦＷ成形に供した。得られた成形品の断
面を顕微鏡で観察したところ、多数のボイドが見られ
た。[Comparative Example 2] Compressed during production of the tape-shaped molding material of Example 1.
The tape-shaped molding material is then used under the same conditions without using rolls.
Obtained. The obtained tape-shaped molding material has a glass fiber content rate.
42% by volume, width 2.8 mm, thickness 0.2 mm, porosity 11.
2%, E ・ S ・ m ・ a 2Was = 15.7. Fruit
It was subjected to FW molding in the same manner as in Example 1. Cut of the obtained molded product
When observing the surface with a microscope, many voids were seen.
It was
【００２３】[0023]
【発明の効果】本発明は以上のように構成されており、
マトリックスとして熱可塑性樹脂を用いるため、繊維強
化熱硬化性樹脂の場合とは異なり、
キュアリング工程が不要である。
得られた成形物がより強靭である。
材料としてのシェルフライフが極めて長い。
硬化剤やマトリックス液の毒性がなく、さらにこうし
た液状物から来る汚れがない。
という長所を有する。また熱可塑性樹脂複合材料との比
較においては、通常のテープ状成形材料に対しては、優
れた可撓性を有しテキスタイル加工等の後加工も可能で
あり、しかも、型に沿い易いため成形性に優れる。特に
ＦＷ成形においては、そのフレキシビリティのため、ヘ
リカル巻きへの使用や、小型品や複雑形状品への適用が
良好であると同時に、成形品のボイドを低減でき、優れ
た物性のＦＷ成形品が得られる。また、熱可塑性繊維
や、粉体を用いた物と比較した場合は、予め補強繊維が
含浸されているため、比較的短時間、低圧力で、均一か
つ、ボイドのない成形品が得られる。The present invention is configured as described above,
Since a thermoplastic resin is used as the matrix, unlike the case of the fiber-reinforced thermosetting resin, a curing step is not necessary. The obtained molded product is tougher. The shelf life as a material is extremely long. There is no toxicity of the hardener or matrix liquid, and there is no contamination from these liquids. It has the advantage. Compared with thermoplastic resin composite materials, it has excellent flexibility compared to ordinary tape-shaped molding materials and can be post-processed such as textile processing, and moreover, it is easy to follow the mold, Excellent in performance. Especially in FW molding, because of its flexibility, it is suitable for use in helical winding and for small and complex shaped products, and at the same time, voids in molded products can be reduced, and FW molded products with excellent physical properties. Is obtained. Further, when compared with thermoplastic fibers or those using powder, since the reinforcing fibers are pre-impregnated, a uniform and void-free molded product can be obtained at a low pressure for a relatively short time.
【図１】代表的なテープ状成形材料の断面図である。FIG. 1 is a cross-sectional view of a typical tape-shaped molding material.
【図２】テープ状成形材料を得るための１例の工程模式
図である。FIG. 2 is a schematic process drawing of an example for obtaining a tape-shaped molding material.
【図３】ＦＷ成形品を得るための１例の工程模式図であ
る。FIG. 3 is a process schematic diagram of an example for obtaining an FW molded product.
１ テープ状成形材料 ２ 熱可塑性樹脂 ３ 強化繊維モノフィラメント Ｌ1 テープ状成形材料の幅 Ｌ2 テープ状成形材料の厚さ ４ 強化繊維クリル ５ 強化繊維 ６ 開繊装置 ７ ダイ ８ 圧縮ロール ９ テープ状成形材料 １０ 引き取り機 １１ 巻取り機 １２ 押出機 １３ テープ状成形材料クリル １４ 予熱ヒーター １５ 溶融加熱装置 １６ マンドレル １７ 圧縮ロール 1 Tape-shaped molding material 2 Thermoplastic resin 3 Reinforcing fiber monofilament Width of L1 tape-shaped molding material L2 tape-like molding material thickness 4 Reinforcing fiber krill 5 Reinforcing fiber 6 Opening device 7 die 8 compression rolls 9 Tape-shaped molding material 10 pick-up machine 11 winder 12 extruder 13 Tape-shaped molding material Krill 14 Preheating heater 15 Melt heating device 16 Mandrel 17 compression rolls
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平４−222243（ＪＰ，Ａ) 特開 昭53−138473（ＪＰ，Ａ) 特開 昭62−60609（ＪＰ，Ａ) 特開 平２−89626（ＪＰ，Ａ) 特開 平３−119034（ＪＰ，Ａ) 特開 平１−235603（ＪＰ，Ａ) 特開 平５−261831（ＪＰ，Ａ) 特開 平５−278031（ＪＰ，Ａ) 特開 平５−278126（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B29B 11/16 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-4-222243 (JP, A) JP-A-53-138473 (JP, A) JP-A-62-60609 (JP, A) JP-A-2- 89626 (JP, A) JP 3-1139034 (JP, A) JP 1-235603 (JP, A) JP 5-261831 (JP, A) JP 5-278031 (JP, A) JP-A-5-278126 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) B29B 11/16
Claims (2)
材料であって、Ｅ・Ｓ・ｍ・ａ2≦８０の条件式を満た
し且つ空隙率が８％以下であり、モノフィラメント数が
１６００本以上の強化繊維を熱可塑性樹脂で含浸して得
られることを特徴とするテープ状成形材料。 但し、Ｅ：強化繊維モノフィラメントの伸長弾性率（ｋｇｆ／ｍｍ2） S：強化繊維モノフィラメントの断面積（ｍｍ2） ｍ：テープ状成形材料中の強化繊維モノフィラメントの本数（−） ａ：テープ状成形材料断面の厚さの半分（ｍｍ）1. A tape-shaped molding obtained by using one die.
The material satisfies the conditional expression of E · S · m · a 2 ≦ 80, has a porosity of 8% or less, and has a monofilament number.
A tape-shaped molding material obtained by impregnating 1600 or more reinforcing fibers with a thermoplastic resin. However, E: Reinforcing fiber monofilament elongation elastic modulus (kgf / mm 2 ) S: Reinforcing fiber monofilament cross-sectional area (mm 2 ) m: Number of reinforcing fiber monofilaments in tape-shaped molding material (-) a: Tape-shaped molding Half the thickness of material cross section (mm)
て、フィラメントワインディング成形を行なうことを特
徴とするフィラメントワインディング成形品。2. A filament winding molded article, which is obtained by performing filament winding molding using the tape-shaped molding material according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30227892A JP3386158B2 (en) | 1992-11-12 | 1992-11-12 | Molding materials and filament wound moldings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30227892A JP3386158B2 (en) | 1992-11-12 | 1992-11-12 | Molding materials and filament wound moldings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06143273A JPH06143273A (en) | 1994-05-24 |
| JP3386158B2 true JP3386158B2 (en) | 2003-03-17 |
Family
ID=17907084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30227892A Expired - Fee Related JP3386158B2 (en) | 1992-11-12 | 1992-11-12 | Molding materials and filament wound moldings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3386158B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013022930A (en) * | 2011-07-26 | 2013-02-04 | Daicel Polymer Ltd | Seam member using fiber rolling tape and production method thereof |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007009124B4 (en) * | 2007-02-24 | 2011-11-03 | Evonik Degussa Gmbh | Induction-based manufacturing processes |
| JP5705650B2 (en) * | 2010-09-24 | 2015-04-22 | ダイセルポリマー株式会社 | Inorganic fiber wound tape and method for producing the same |
| JP2013104056A (en) * | 2011-11-17 | 2013-05-30 | Fukuvi Chemical Industry Co Ltd | Fiber-reinforced plastic tape |
| JP6535218B2 (en) | 2015-05-22 | 2019-06-26 | 株式会社神戸製鋼所 | Tape-like prepreg and fiber-reinforced molded article |
| US20220098387A1 (en) | 2019-04-25 | 2022-03-31 | Nitto Boseki Co., Ltd. | Fiber-reinforced resin hollow cylindrical body |
-
1992
- 1992-11-12 JP JP30227892A patent/JP3386158B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013022930A (en) * | 2011-07-26 | 2013-02-04 | Daicel Polymer Ltd | Seam member using fiber rolling tape and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06143273A (en) | 1994-05-24 |
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