JPS5829651A - Prepreg - Google Patents

Prepreg

Info

Publication number
JPS5829651A
JPS5829651A JP56127415A JP12741581A JPS5829651A JP S5829651 A JPS5829651 A JP S5829651A JP 56127415 A JP56127415 A JP 56127415A JP 12741581 A JP12741581 A JP 12741581A JP S5829651 A JPS5829651 A JP S5829651A
Authority
JP
Japan
Prior art keywords
resin
carbon fiber
sheet
weight
prepreg
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
JP56127415A
Other languages
Japanese (ja)
Inventor
雄介 松下
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.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon 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 Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP56127415A priority Critical patent/JPS5829651A/en
Publication of JPS5829651A publication Critical patent/JPS5829651A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10Coating or impregnating independently of the moulding or shaping step
    • B29B15/105Coating or impregnating independently of the moulding or shaping step of reinforcement of definite length with a matrix in solid form, e.g. powder, fibre or sheet form

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は熱可塑性樹脂なマ) IJラックスした炭素繊
維強化複合材料用の一方面プリプレグに関するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a one-sided prepreg for thermoplastic resin IJ-laxed carbon fiber reinforced composite materials.

従来のプリプレグに熱硬化性樹脂、なかでもエポキシ樹
脂を使用したものが主体である。プリプレグに用いられ
るエポキシ樹脂は低分子量の液状のものが多く、ケトン
類等の溶剤に易溶性であるため、低粘度の樹脂液が得ら
れる。従って炭素繊維への樹脂含浸が容易であるが、反
面一般に硬化時間が長いため生産性が低い欠点があると
共に経時変化性を有することが難点となっている。
Conventional prepregs are mainly made using thermosetting resins, especially epoxy resins. Most of the epoxy resins used in prepregs are liquid with low molecular weight and are easily soluble in solvents such as ketones, so that resin liquids with low viscosity can be obtained. Therefore, it is easy to impregnate carbon fibers with resin, but on the other hand, it generally has a long curing time, resulting in low productivity, and also has the disadvantage of being susceptible to changes over time.

これに対して複合材料のマ) IJラックス対象となる
熱可塑性樹脂は高重合度で、耐薬品性および耐熱性が強
いため、連続した炭素繊維集合体に対し、樹脂付着率を
任意に調節し、しかも均一に+I’5%fせしめること
は非常に難しい。
On the other hand, the thermoplastic resin that is used in composite material IJ Lux has a high degree of polymerization and strong chemical and heat resistance, so the resin adhesion rate can be arbitrarily adjusted to continuous carbon fiber aggregates. Moreover, it is extremely difficult to uniformly increase +I'5%f.

例えば、樹脂を溶剤に溶解して、炭素繊維に性の溶剤の
ある樹脂でも、浴解度が低く、任意の樹脂付着率が得ら
れにくい。
For example, even if the resin is dissolved in a solvent and the solvent is compatible with carbon fibers, the bath solubility is low and it is difficult to obtain a desired resin adhesion rate.

また、樹脂を加熱溶融して炭素繊維に含浸1−るには、
樹脂の物性を損失しない範囲では溶融粘度が非常に高い
ため生産性よく、しかも均一に+1着せしめることが難
しい。
In addition, in order to impregnate carbon fiber by heating and melting the resin,
Since the melt viscosity is extremely high within a range that does not cause loss of the physical properties of the resin, it is difficult to achieve uniform +1 coating with good productivity.

従って、従来熱可塑性樹脂をマ) IJラックスして用
いる方法としては、炭素繊維を短繊維状にカツトシ、こ
れを樹脂と加熱溶融混練して粒状物にしたものを複合材
料として用いているが、か〜る使い方では繊維の方向性
がランダムであるだめに炭素繊維の強度特性を有効に利
用しうるものとは言い難いものである。
Therefore, the conventional method of using thermoplastic resin as IJ lux is to cut carbon fiber into short fibers and heat-melt and knead them with resin to make granules, which are then used as a composite material. In such a usage, it is difficult to say that the strength characteristics of carbon fiber can be effectively utilized because the fiber orientation is random.

かかる問題点を解決するために、本発明者にはy一方向
に平行して拡開されたシート状炭素繊維集合体に対して
樹脂の付着率を任意に調節することが可能なプリプレグ
を得るべく鋭意研究の結果、生産性が高く、しかも上記
内容な満足しうる熱可塑性樹脂をマトリックスとしたシ
ート状一方向ブリプレグを完成した。該プリプレグを必
要枚数積層して加熱成型することにより短時間にして、
炭素繊維の強度特性を有効に利用した、軽量にして、高
強度、耐衝撃性、耐熱変形性を有する高性能の複合材料
を得ることが可能であり、車輌、航空機等の構造材、電
機電子部品、スポーツ用品、工作機械部品等多方面に亘
り適用しうる。
In order to solve this problem, the inventors of the present invention obtained a prepreg that allows the adhesion rate of resin to be arbitrarily adjusted to a sheet-like carbon fiber aggregate spread in parallel to the y direction. As a result of intensive research, we have completed a sheet-like unidirectional Bripreg with a thermoplastic resin matrix that is highly productive and satisfies the above requirements. By laminating the required number of prepregs and heat molding, it can be done in a short time.
By effectively utilizing the strength characteristics of carbon fiber, it is possible to obtain a lightweight, high-performance composite material that has high strength, impact resistance, and heat deformation resistance, and is used as structural materials for vehicles, aircraft, etc., and electrical and electronic equipment. It can be applied to many fields such as parts, sporting goods, machine tool parts, etc.

本発明のプリプレグは連続した、はy一方向に平行して
拡開されたシート状炭素繊維集合体を引き取りながら、
一方、同方向に走行する熱可塑性樹脂のフィルムもしく
はシート状物と連(3) 統帥に接着せしめることによりシート状に固着一体化さ
れた一方面プリプレグが得られる。
The prepreg of the present invention is a continuous sheet-like carbon fiber aggregate that is spread out in parallel to the y direction.
On the other hand, by adhering it to a thermoplastic resin film or sheet-like material running in the same direction and to the guide (3), a one-sided prepreg fixedly integrated into a sheet-like shape can be obtained.

本発明に用いられる熱可塑性マ) I)ックス樹脂とt
7て具体的にはポリエチレン、ポリプリピレン、ポリス
チレン、ポリメタクリレート、ポリ塩化ビニール、ポリ
塩化ビニリデン、ABS、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、ポリカーボネート、ポ
リアミド、ポリスルホン、ポリエーテルスルホン、ポリ
フェニレンサルファイド、ホリフエニレンオキシド、ポ
リアセタール、ポリエーテル、弗素樹脂等があげられる
Thermoplastic polymer used in the present invention I) Polyester resin and t
7. Specifically, polyethylene, polypropylene, polystyrene, polymethacrylate, polyvinyl chloride, polyvinylidene chloride, ABS, polyethylene terephthalate, polybutylene terephthalate, polycarbonate, polyamide, polysulfone, polyether sulfone, polyphenylene sulfide, polyphenylene oxide, Examples include polyacetal, polyether, and fluororesin.

マ) IJラックス脂の性能として高強度、高弾性率等
のほかに融点又はガラス転移点が高く温度上昇に対して
も性能を保持するように熱安定性であることが必要であ
り、特許請求の範囲に記馳の融点110℃以上又はガラ
ス転移点60℃以上が要求され、これらの温度以下では
耐熱性が不充分である。
M) In addition to high strength and high modulus of elasticity, IJ Lux resin must have a high melting point or glass transition point and be thermally stable so that it maintains its performance even when the temperature rises, and the patent claims A melting point of 110° C. or higher or a glass transition point of 60° C. or higher is required in the above range, and heat resistance is insufficient below these temperatures.

樹脂の重量割合はプリプレグの90〜15重(4) fi%でありシート状炭素繊維集合体と樹脂シート状物
との厚みをそれぞれ変え、これらの組合せによって重量
割合を調節することが可能である。この場合樹脂が90
重量%以上では強度特性が不充分であり、15重量%以
下ではマ) IJラックス脂と炭素繊維との界面接着が
不充分となる。
The weight ratio of the resin is 90 to 15 weight (4) fi% of the prepreg, and it is possible to adjust the weight ratio by changing the thickness of the sheet-like carbon fiber aggregate and the resin sheet, respectively, and by combining these. . In this case, the resin is 90
If it is more than 15% by weight, the strength properties will be insufficient, and if it is less than 15% by weight, the interfacial adhesion between the IJ lux resin and carbon fiber will be insufficient.

なお、炭素繊維との界面接着がよくない樹脂もしくは炭
素繊維との界面接着がはg良好な樹脂でも更に接着性を
向上せしめることによって強度特性を改良する場合には
カップリング剤を併用する。カップリング剤としてはポ
リエステル系、ポリアミド系、エポキシ系、アクリル系
、フェノール系等があげられる。
Note that a coupling agent is used in combination with a resin that has poor interfacial adhesion with carbon fibers or a resin that has good interfacial adhesion with carbon fibers in order to further improve adhesiveness and thereby improve strength properties. Examples of the coupling agent include polyester, polyamide, epoxy, acrylic, and phenol.

次に熱可塑性樹脂のシート状物としては、厚み0.05
〜0.6鴫のフィルムが主に用いられるが、炭素繊維と
の重量割合を調節する場合、0、05 tea以下又は
0.3 tva以上の厚みのフィルムを使用することも
可能である。
Next, as a sheet-like material of thermoplastic resin, the thickness is 0.05
A film with a thickness of ~0.6 tva is mainly used, but if the weight ratio with carbon fiber is adjusted, it is also possible to use a film with a thickness of 0.05 tva or less or 0.3 tva or more.

かkる樹脂シート状物と炭素繊維集合体な固着一体化す
る方法には下記の方法があげられる。
Examples of methods for fixing and integrating the resin sheet-like material and the carbon fiber aggregate include the following methods.

(1)熱可塑性樹脂と同質、同系あるいは異質の樹脂溶
液に含浸した炭素繊維を接着する方法。
(1) A method of bonding carbon fibers impregnated with a resin solution of the same type, type, or type different from a thermoplastic resin.

(2)溶剤単独液に含浸した炭素繊維を溶接着する方法
。。
(2) A method of welding carbon fibers impregnated with a solvent alone. .

(3)熱可塑性樹脂と同質、同系あるいは異質のホット
メルト樹脂液に含浸した炭素繊維を接着する方法。
(3) A method of bonding carbon fibers impregnated with a hot melt resin liquid of the same type, type, or type different from a thermoplastic resin.

(4)上記(1)〜(3)の含浸液の中に炭素繊維とマ
トリックス樹脂とのカップリング剤を混合した液に含浸
した炭素繊維を接着する方法。
(4) A method of adhering carbon fibers impregnated with a liquid in which a coupling agent for carbon fibers and a matrix resin is mixed in the impregnating liquid of (1) to (3) above.

(5)炭素繊維を加熱することによって、樹脂シート状
物表面に熱融着する方法。
(5) A method of heat-sealing carbon fibers to the surface of a resin sheet by heating them.

(6)樹脂シート状物表面を加熱溶融して炭素繊維を融
着する方法 などである。
(6) A method of heating and melting the surface of a resin sheet to fuse carbon fibers.

炭素繊維集合体と樹脂シート状物の固着一体化は第1図
に示すように樹脂シート状物の片面に炭素繊維集合体を
固着せしめるケースと策2図に示すように樹脂シート状
物の間に炭素繊維集合体を固着せしめるケースとがある
The bonding and integration of the carbon fiber aggregate and the resin sheet-like object is achieved by fixing the carbon fiber aggregate to one side of the resin sheet-like object as shown in Fig. 1, and by fixing the carbon fiber aggregate to one side of the resin sheet-like object as shown in Fig. 2. There is also a case in which carbon fiber aggregates are fixed.

いずれのケースも特許請求の範囲に記載した重量割合に
調整することが可能であるが、炭素繊維の割合が特に高
い場合は前者の方が、一方樹脂の割合が特に高い場合は
后者の方が調整が容易である。
In either case, it is possible to adjust the weight proportion as stated in the claims, but if the proportion of carbon fiber is particularly high, the former is preferable, while if the proportion of resin is particularly high, the latter is preferable. is easy to adjust.

実施例 ポリカーボネート樹脂を塩化メチレンに溶解して、樹脂
溶解度25重量係の溶液を調整した。
Example Polycarbonate resin was dissolved in methylene chloride to prepare a solution having a resin solubility of 25% by weight.

この樹脂液に、炭素繊維を30本平行にして、均一に配
列した状態に並べた。シート状炭素繊集合体を含浸せし
め、未乾燥のうちに、ポリカーボネートフィルム(厚み
o、 1m)に接着せしめ、乾燥して固着一体化された
一方向ゾリプレグを作製した。
Thirty carbon fibers were arranged in parallel and uniformly arranged in this resin liquid. A sheet-like carbon fiber aggregate was impregnated, adhered to a polycarbonate film (thickness o, 1 m) while still wet, and dried to produce a unidirectional ZOLIPREG that was fixed and integrated.

かくして得られたプリプレグ(厚みn、 5 tan 
s目付52of/m”)を縦110箇、横210mmに
カットしたものを8枚積層して金型に入れ、温度250
℃、圧カフ縁/Cm2で10分間プレスし、平板を得た
。か(して得られた平板の性質は、炭素繊維含有率67
重量係、引張強度130ic9/rtan2、引張弾性
率10300 Kg、7mn2、曲げ強度129 Kp
/、2、曲げ弾性率9700 K、17m2、層間剪断
強度8. I V4/1tan2であった。
The thus obtained prepreg (thickness n, 5 tan
8 pieces cut into 110 pieces vertically and 210 mm wide were stacked and placed in a mold, and heated to 250°C.
It was pressed for 10 minutes at ℃ and pressure cuff edge/Cm2 to obtain a flat plate. (The properties of the obtained flat plate are that the carbon fiber content is 67
Weight ratio, tensile strength 130ic9/rtan2, tensile modulus 10300 Kg, 7mn2, bending strength 129 Kp
/, 2, flexural modulus 9700 K, 17 m2, interlaminar shear strength 8. It was IV4/1tan2.

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

第1図は樹脂シート状物の片面に炭素繊維集合体が固着
した状態を示す断面図であり、(a)図は表面固着、(
b)図は内面に埋め込まれた状態を示す。 第2図は炭素繊維集合体が樹脂シート状物の間に固着さ
れた状態を示す略断面図であり、(C)図は表面固着、
(d)図は内面に埋め込まれた状態を示すか 1 炭素繊維群 2 樹脂シート状物 青 ((1)回 青 2 (C)図 (b)図 (d)図
FIG. 1 is a cross-sectional view showing a state in which carbon fiber aggregates are fixed to one side of a resin sheet, and (a) shows surface fixation, (
b) The figure shows the state embedded in the inner surface. FIG. 2 is a schematic cross-sectional view showing a state in which carbon fiber aggregates are fixed between resin sheet-like materials, and (C) shows surface fixation,
(d) Figure shows the state embedded in the inner surface 1 Carbon fiber group 2 Resin sheet-like material blue ((1) Blue 2 (C) Figure (b) Figure (d) Figure

Claims (1)

【特許請求の範囲】[Claims] 10〜85重量%のはy一方向に平行して拡開されたシ
ート状炭素繊維集合体と、90〜15重量%の融点が1
10℃以上又はガラス転移点が60℃以上の熱可塑性樹
脂を主体とするシート状物とを固着一体化されてなるプ
リプレグ。
10 to 85% by weight is a sheet-like carbon fiber aggregate expanded parallel to one direction, and 90 to 15% by weight is a sheet-like carbon fiber aggregate with a melting point of 1.
A prepreg formed by bonding and integrating a sheet material mainly made of a thermoplastic resin having a glass transition temperature of 10°C or higher or a glass transition point of 60°C or higher.
JP56127415A 1981-08-14 1981-08-14 Prepreg Pending JPS5829651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56127415A JPS5829651A (en) 1981-08-14 1981-08-14 Prepreg

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56127415A JPS5829651A (en) 1981-08-14 1981-08-14 Prepreg

Publications (1)

Publication Number Publication Date
JPS5829651A true JPS5829651A (en) 1983-02-21

Family

ID=14959393

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56127415A Pending JPS5829651A (en) 1981-08-14 1981-08-14 Prepreg

Country Status (1)

Country Link
JP (1) JPS5829651A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61106634A (en) * 1984-10-29 1986-05-24 Nikkiso Co Ltd Unidirectional prepreg and its production
JPS63212517A (en) * 1987-03-02 1988-09-05 Teijin Ltd Manufacture of composite material
WO1996015900A1 (en) * 1994-11-22 1996-05-30 Dow-United Technologies Composite Products, Inc. Low resin content unidirectional fiber tape
JP2011073436A (en) * 2009-09-29 2011-04-14 Karl Mayer Malimo Textilmaschinenfabrik Gmbh Intermediate product and intermediate-product composite
JP2016503090A (en) * 2012-12-27 2016-02-01 ポスコ Process for producing continuous carbon fiber reinforced thermoplastic prepreg
WO2018168554A1 (en) 2017-03-16 2018-09-20 株式会社カネカ Bonded composite of thermoplastic-resin-based fiber-reinforced composite material and metal member, and method for producing bonded composite

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61106634A (en) * 1984-10-29 1986-05-24 Nikkiso Co Ltd Unidirectional prepreg and its production
JPS63212517A (en) * 1987-03-02 1988-09-05 Teijin Ltd Manufacture of composite material
JPH0523568B2 (en) * 1987-03-02 1993-04-05 Teijin Ltd
WO1996015900A1 (en) * 1994-11-22 1996-05-30 Dow-United Technologies Composite Products, Inc. Low resin content unidirectional fiber tape
JP2011073436A (en) * 2009-09-29 2011-04-14 Karl Mayer Malimo Textilmaschinenfabrik Gmbh Intermediate product and intermediate-product composite
JP2016503090A (en) * 2012-12-27 2016-02-01 ポスコ Process for producing continuous carbon fiber reinforced thermoplastic prepreg
EP2939832A4 (en) * 2012-12-27 2016-02-17 Posco Method for preparing continuous carbon fiber-reinforced thermoplastic prepreg
US9873242B2 (en) 2012-12-27 2018-01-23 Posco Method for preparing continuous carbon fiber-reinforced thermoplastic prepreg
WO2018168554A1 (en) 2017-03-16 2018-09-20 株式会社カネカ Bonded composite of thermoplastic-resin-based fiber-reinforced composite material and metal member, and method for producing bonded composite

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