JPH08216268A - Manufacture of fiber-reinforced phenol resin molding - Google Patents

Manufacture of fiber-reinforced phenol resin molding

Info

Publication number
JPH08216268A
JPH08216268A JP7020750A JP2075095A JPH08216268A JP H08216268 A JPH08216268 A JP H08216268A JP 7020750 A JP7020750 A JP 7020750A JP 2075095 A JP2075095 A JP 2075095A JP H08216268 A JPH08216268 A JP H08216268A
Authority
JP
Japan
Prior art keywords
resin
fiber
phenol resin
molding
curing
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.)
Withdrawn
Application number
JP7020750A
Other languages
Japanese (ja)
Inventor
Koji Yamamoto
浩司 山本
Takayasu Fujiura
貴保 藤浦
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP7020750A priority Critical patent/JPH08216268A/en
Publication of JPH08216268A publication Critical patent/JPH08216268A/en
Withdrawn legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To manufacture fiber-reinforced resin molding having excellent strength characteristics with excellent productivity by pultrusion molding phenol resin containing xylene modified phenol resin as a main ingredient as impregnating resin. CONSTITUTION: Reinforcing fiber roving 1 and reinforcing fiber mat 2 are continuously passed through an impregnating tank 3 in which xylene modified phenol resin is filled, and cured while continuously pultrusion molding by a puller 6 via a forming unit 2 and a heating mold 5. The resin at the time of the pultrusion molding can be cured only by heating, but when a suitable quantity of calcium oxide is added as curing catalyst, the impregnation to the reinforcing fiber can be reduced, the curing reaction velocity and the crosslinking point density at the time of curing can be enhanced, and fiber-reinforced resin molding having further excellent strength characteristics can be efficiently obtained. Void defect can be further eliminated.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は引抜成形法を利用して強
度特性に優れた繊維強化フェノール系樹脂成形体を製造
する方法の改良に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a method for producing a fiber-reinforced phenolic resin molding having excellent strength characteristics by utilizing a pultrusion molding method.

【0002】[0002]

【従来の技術】引抜成形法とは、強化繊維を樹脂に含浸
させた後、加熱機構を備えた成形型に通して硬化・成形
しながら連続的に引抜いていく成形法であり、ガラス繊
維や炭素繊維をはじめとする種々の強化繊維と、不飽和
ポリエステル樹脂やエポキシ樹脂等の樹脂とを複合して
なる繊維強化樹脂成形体の連続成形法として汎用されて
いる。
2. Description of the Related Art The pultrusion molding method is a molding method in which a reinforcing fiber is impregnated in a resin and then continuously drawn while being cured and molded through a molding die having a heating mechanism. It is widely used as a continuous molding method of a fiber-reinforced resin molded product obtained by compounding various reinforcing fibers such as carbon fiber and a resin such as an unsaturated polyester resin or an epoxy resin.

【0003】一方フェノール系樹脂は耐熱性、耐燃焼
性、電気的特性等に優れ且つ比較的安価であるところか
ら、強化繊維との複合用樹脂として古くから利用されて
いる。しかしながらフェノール樹脂は、不飽和ポリエス
テル樹脂やエポキシ樹脂に比べると、含浸に適した粘度
を確保するための溶媒使用量が多く且つ縮重合反応時に
大量の水が生成するので硬化所要時間が長く、且つ強化
繊維との接着性も低く、引抜成形法では満足な強度特性
の繊維強化樹脂が得られない(引抜成形体としての強度
は、含浸樹脂として不飽和ポリエステル樹脂を用いたも
ののせいぜい80%程度)ので、含浸樹脂としてフェノ
ール系樹脂を使用する場合は、十分な含浸状態と硬化時
間が得られ易いハンドレイアップ法、プリプレグ・コン
パウンド成形法、反応型射出成形法等が採用されてき
た。
On the other hand, a phenolic resin has been used for a long time as a composite resin with a reinforcing fiber since it is excellent in heat resistance, combustion resistance, electrical characteristics and the like and is relatively inexpensive. However, compared with unsaturated polyester resin and epoxy resin, phenol resin has a large amount of solvent used to secure a viscosity suitable for impregnation and a large amount of water is generated during the polycondensation reaction, so that the curing time is long, and Adhesion to reinforcing fibers is also low, and fiber-reinforced resin with satisfactory strength characteristics cannot be obtained by the pultrusion molding method (strength as pultrusion molded article is at most about 80% when unsaturated polyester resin is used as impregnating resin). Therefore, when a phenolic resin is used as the impregnating resin, a hand layup method, a prepreg compound molding method, a reaction type injection molding method, etc., which can easily obtain a sufficient impregnation state and a curing time, have been adopted.

【0004】しかしながらこれらの方法はいずれもバッ
チ方式であるため生産性が悪く、量産に不向きであるた
め、フェノール系樹脂を含浸樹脂として用いた引抜成形
法も提案されている(たとえば特開平2−182437
号、同2−235726号等)が、これらの方法でも硬
化不足や含浸不良等による強度不足は避けられない。
However, since all of these methods are batch systems, they have poor productivity and are not suitable for mass production. Therefore, a pultrusion method using a phenolic resin as an impregnating resin has also been proposed (for example, JP-A-2- 182437
No. 2-235726, etc.), these methods cannot avoid insufficient strength due to insufficient curing or impregnation.

【0005】[0005]

【発明が解決しようとする課題】本発明は上記の様な事
情に着目してなされたものであって、その目的は、フェ
ノール系樹脂を含浸樹脂として使用し、強度特性の優れ
た繊維強化樹脂成形体を引抜成形法によって生産性良く
製造することのできる技術を確立しようとするものであ
る。
DISCLOSURE OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to use a phenol resin as an impregnating resin and to obtain a fiber reinforced resin excellent in strength characteristics. It is intended to establish a technique capable of producing a molded body with a high productivity by a pultrusion molding method.

【0006】[0006]

【課題を解決するための手段】上記課題を解決すること
のできた本発明の構成は、引抜成形法によって繊維強化
フェノール系樹脂成形体を製造するに当たり、含浸樹脂
としてキシレン変性フェノール樹脂を主成分とするフェ
ノール系樹脂を使用するところに要旨を有するものであ
る。尚上記引抜成形時における樹脂の硬化は加熱のみに
よって行なうことも可能であるが、硬化触媒として適量
の酸化カルシウムを添加すると、強化繊維への含浸性を
低下させることなく硬化反応速度や硬化時の架橋点密度
を高めることができ、強度特性の一段と優れた繊維強化
樹脂成形体を効率良く得ることができる。
Means for Solving the Problems The constitution of the present invention which was able to solve the above-mentioned problems is that when a fiber-reinforced phenolic resin molding is produced by a pultrusion molding method, a xylene-modified phenol resin is used as a main component as an impregnating resin. The main point is to use the phenolic resin. Although it is possible to cure the resin at the time of the above-mentioned pultrusion molding only by heating, if an appropriate amount of calcium oxide is added as a curing catalyst, the curing reaction rate and the curing reaction rate at the time of curing without deteriorating the impregnability to the reinforcing fiber can be achieved. The density of cross-linking points can be increased, and a fiber-reinforced resin molded product having more excellent strength characteristics can be efficiently obtained.

【0007】[0007]

【作用】含浸樹脂としてフェノール系樹脂を用いた繊維
強化樹脂成形体の製造に引抜成形法が利用し難い最大の
原因は、フェノール系樹脂自体の特性によるものと思わ
れる。即ちフェノール樹脂(特にレゾール型フェノール
系樹脂)は多数の官能基を有しているため水溶液粘度が
高く、含浸に適した粘性(通常8000cps程度以
下)を得るには水溶液濃度をかなり下げなければなら
ず、しかも硬化時の縮重合反応によって大量の水が生成
する。そして含浸されたフェノール系樹脂が完全硬化す
るには、その前に大量の溶媒と生成する水分の揮発除去
が行なわれなければならず、それらの除去に大量の熱が
消費されるため、完全硬化に長時間を要したり硬化不足
となり、更には揮発水分が気泡状となって成形体内部に
取り残されてボイド欠陥となり、それらが悪影響を及ぼ
して強度劣化を引き起こしているものと思われる。
The most important reason why the pultrusion molding method is difficult to use in the production of the fiber-reinforced resin molded product using the phenolic resin as the impregnating resin seems to be the characteristics of the phenolic resin itself. That is, since the phenol resin (particularly the resol type phenol resin) has a large number of functional groups, the viscosity of the aqueous solution is high, and in order to obtain a viscosity suitable for impregnation (usually about 8000 cps or less), the concentration of the aqueous solution must be lowered considerably. In addition, a large amount of water is generated by the polycondensation reaction during curing. In order for the impregnated phenolic resin to be completely cured, a large amount of solvent and generated water must be volatilized and removed, and a large amount of heat is consumed to remove them, resulting in a complete cure. It takes a long time or insufficient curing, and further, the volatile moisture becomes bubbles and is left inside the molded body to form void defects, which adversely affect the strength deterioration.

【0008】こうした問題を回避するため、フェノール
系樹脂を予め濃縮し、更には予備縮合させておくことに
より、含浸後の揮発水分量を低減することも考えられる
が、この方法を採用すると濃縮樹脂が高粘性となって強
化繊維への含浸が不十分になり、ボイド欠陥はかえって
増大する。また濃縮樹脂を含浸槽中で加熱することによ
り粘性を下げて含浸を促進させる方法も考えられるが、
濃縮されたフェノール系樹脂の加熱条件下でのポットラ
イフは非常に短く、短時間のうちに増粘してゲル状に固
まるため、工業的規模での実用化は期し難い。
In order to avoid such problems, it is possible to reduce the amount of volatile water content after impregnation by concentrating the phenolic resin in advance and further precondensing it. Becomes highly viscous and impregnation into the reinforcing fibers becomes insufficient, and void defects increase on the contrary. It is also conceivable to heat the concentrated resin in the impregnation tank to reduce the viscosity and promote impregnation.
The pot life of the concentrated phenolic resin under heating conditions is very short, and it thickens and solidifies into a gel in a short time, making it difficult to put it to practical use on an industrial scale.

【0009】即ち一般のフェノール系樹脂は含浸に必要
な粘性を確保しようとすると低濃度にしなければなら
ず、高濃度にして硬化時の揮発水分量を低減しようとす
ると含浸不良になるという二律背反の問題点を有してお
り、これが繊維強化樹脂成形体としての強度特性を低下
させる原因の1つになっているものと思われる。
That is, a general phenolic resin must be made to have a low concentration in order to secure the viscosity necessary for impregnation, and impregnation becomes poor when it is attempted to increase the concentration to reduce the amount of volatile water at the time of curing. There is a problem, and it is considered that this is one of the causes for lowering the strength characteristics of the fiber-reinforced resin molded product.

【0010】そこで本発明者らは、樹脂溶液としての粘
性が低く、高濃度で優れた含浸性を発揮し得る様なフェ
ノール系樹脂を使用すれば、上記の問題が一挙に解決さ
れるのではないかと考え、その線に沿って様々のフェノ
ール系樹脂について濃度と粘性の関係および含浸用樹脂
としての適性を検討した。
Therefore, the inventors of the present invention may solve the above problems at once by using a phenolic resin having a low viscosity as a resin solution and capable of exhibiting an excellent impregnating property at a high concentration. Therefore, we investigated the relationship between concentration and viscosity of various phenolic resins and their suitability as impregnating resins along the line.

【0011】その結果、多数存在するフェノール系樹脂
のうちキシレン変性フェノール樹脂はそれ自身低粘性の
溶液として調整することができ、一般のフェノール系樹
脂に比べて高濃度でも低粘性で優れた含浸性を示し、且
つ縮重合反応により架橋点密度の高い硬化物を与えるこ
とを知った。
As a result, xylene-modified phenol resin can be prepared as a low-viscosity solution by itself among a large number of phenol-based resins, and it has a low viscosity even at a high concentration and an excellent impregnation property as compared with general phenol-based resins. , And it was found that a polycondensation reaction gives a cured product having a high crosslinking point density.

【0012】本発明はこうした知見に基づいてなされた
ものであって、含浸用樹脂としてキシレン変性フェノー
ル樹脂を主成分とするフェノール系樹脂を使用し、これ
を強化繊維と複合して引抜成形法によって繊維強化樹脂
成形体を製造するものであり、従来のフェノール系樹脂
を含浸樹脂として用いた場合に指摘される、硬化時の揮
発溶剤過多による硬化不良やボイド欠陥、あるいは含浸
不良によるボイド欠陥等を生じることなく、しかも強化
繊維間において樹脂が高度に架橋一体化して、強度およ
び耐熱性の優れた引抜成形体を得ることができる。
The present invention has been made on the basis of these findings, and a phenolic resin containing a xylene-modified phenolic resin as a main component is used as an impregnating resin, which is combined with a reinforcing fiber by a pultrusion molding method. Fiber reinforced resin moldings are manufactured, and when the conventional phenolic resin is used as the impregnating resin, the curing defects and void defects due to the excess volatile solvent at the time of curing, or the void defects due to the impregnation defect are caused. It is possible to obtain a pultruded molded article which is excellent in strength and heat resistance, because the resin is highly cross-linked and integrated between the reinforcing fibers without any occurrence.

【0013】本発明で使用されるキシレン変性フェノー
ル樹脂とは、レゾール型のフェノールとホルムアルデヒ
ドとの縮重合反応系に、フェノールに対して0.5〜1
0倍モル程度のキシレンを含有させて塩基性条件下で反
応させる方法、あるいはレゾール型フェノール・ホルム
アルデヒド初期縮合物とメタキシレン・ホルムアルデヒ
ド付加縮合オリゴマーを反応させる方法等によって得る
ことができ、従って本発明で使用するキシレン変性フェ
ノール樹脂とは、フェノール変性キシレンホルムアルデ
ヒド樹脂ということもできる。いずれにしても、縮重合
成分としてフェノールと共にキシレンを存在させること
によって、溶液粘度が著しく低下すると共に架橋反応性
が著しく高められたものである。
The xylene-modified phenol resin used in the present invention is a polycondensation reaction system of resol type phenol and formaldehyde, and is 0.5 to 1 relative to phenol.
It can be obtained by a method in which xylene is contained in an amount of about 0 times mol and reacted under basic conditions, or a method in which a resol-type phenol / formaldehyde initial condensate and a metaxylene / formaldehyde addition condensation oligomer are reacted, and the like. The xylene-modified phenol resin used in 1. can also be referred to as a phenol-modified xylene formaldehyde resin. In any case, the presence of xylene together with phenol as the polycondensation component markedly reduced the solution viscosity and significantly increased the crosslinking reactivity.

【0014】この様なキシレン変性フェノール樹脂は、
たとえば三菱ガス化学社製商品名「Nikanol P
R−1540M」や「Nikanol PR−1440
M」等として入手することができる。
Such a xylene-modified phenolic resin is
For example, the product name "Nikanol P" manufactured by Mitsubishi Gas Chemical Co., Inc.
R-1540M "and" Nikanol PR-1440
M ”or the like.

【0015】本発明においては、上記の様なキシレン変
性フェノール樹脂を単独で使用してもよく、あるいは他
のフェノール系樹脂と混合して使用してもよい。しかし
混合使用する場合、本発明の特徴を有効に発揮させるに
はキシレン変性フェノール樹脂の配合比率を50重量%
以上、より好ましくは70重量%以上にすることが望ま
れる。
In the present invention, the xylene-modified phenol resin as described above may be used alone, or may be used as a mixture with another phenol resin. However, when mixed and used, in order to effectively exhibit the characteristics of the present invention, the mixing ratio of the xylene-modified phenol resin is 50% by weight.
As described above, more preferably 70% by weight or more is desired.

【0016】上記のキシレン変性フェノール樹脂は、強
化繊維への含浸が十分に行なわれる様25℃における粘
度が3〜80ポイズ、より好ましくは5〜50ポイズと
なる様に濃度調整して使用するのがよい。そしてこのキ
シレン変性フェノール樹脂は、120〜200℃に加熱
することにより縮重合反応を起こして硬化するが、樹脂
中に硬化触媒として1〜5重量%程度の酸化カルシウム
を添加すれば、含浸時の溶液粘度を高めることなく縮重
合反応速度が一層高められるので好ましい。
The above xylene-modified phenolic resin is used by adjusting the concentration so that the viscosity at 25 ° C. is 3 to 80 poises, more preferably 5 to 50 poises so that the reinforcing fibers can be sufficiently impregnated. Is good. This xylene-modified phenolic resin causes a polycondensation reaction to be cured by heating at 120 to 200 ° C., but if about 1 to 5% by weight of calcium oxide is added to the resin as a curing catalyst, it will be It is preferable because the polycondensation reaction rate can be further increased without increasing the solution viscosity.

【0017】次に本発明で使用される強化繊維は、硬化
物の強度、特に引張強度、耐衝撃強度等を高める作用を
有するものであり、その種類は特に限定されないが、好
ましいのは炭素繊維、ガラス繊維、金属繊維、アラミド
繊維等であり、これらはロービング、クロス、マットあ
るいはこれらを適当に組合せたものとして使用するのが
よい。
Next, the reinforcing fiber used in the present invention has an action of enhancing the strength of the cured product, particularly the tensile strength, the impact strength and the like, and the kind thereof is not particularly limited, but carbon fiber is preferred. , Glass fiber, metal fiber, aramid fiber and the like, which are preferably used as roving, cloth, mat or a combination thereof.

【0018】本発明においては、引抜成形材料としての
特性や硬化物の特性を阻害しない範囲で、更に他の配合
原料として、水酸化アルミニウム、石こう、タルク等の
無機フィラーあるいは難撚剤、紫外線劣化防止剤、顔
料、低収縮剤等を適量配合することも可能である。また
引抜成形性を高めるため、適量の内部離型剤を配合する
ことも有効である。
In the present invention, inorganic fillers such as aluminum hydroxide, gypsum, talc, etc., or anti-twisting agents, and ultraviolet light deterioration may be used as other compounding raw materials as long as they do not impair the properties as a pultrusion molding material or the properties of a cured product. It is also possible to mix an appropriate amount of an inhibitor, a pigment, a low-shrinking agent and the like. Further, in order to enhance the pultrudability, it is also effective to add an appropriate amount of an internal release agent.

【0019】本発明においては、上記の配合原料を使用
し従来公知の引抜成形たとえばプルトルージョン成形を
行ない、引抜成形と並行してあるいは引抜成形後に加熱
硬化させて硬化成形体を得る。たとえば図1は引抜成形
法を例示する説明図であり、強化繊維ロービング1と強
化繊維マット2をキシレン変形フェノール樹脂(あるい
はこれと硬化剤の混合物)が装入された含浸槽3に連続
的に通し、フォーミング装置4及び加熱金型5を通して
引張機6によって連続的に引抜成形しつつ硬化させる。
図中7は切断装置を示す。尚図1は引抜成形法の一例を
示しただけのものであって、もとより本発明に制限を加
えるものではない。
In the present invention, the above-mentioned blended raw materials are used to perform conventionally known pultrusion molding, for example, pultrusion molding, and heat-cured in parallel with the pultrusion molding or after the pultrusion molding to obtain a cured molded article. For example, FIG. 1 is an explanatory view illustrating a pultrusion molding method, in which a reinforcing fiber roving 1 and a reinforcing fiber mat 2 are continuously placed in an impregnation tank 3 charged with a xylene-modified phenolic resin (or a mixture of this and a curing agent). Through the forming device 4 and the heating die 5, the resin is continuously drawn and cured by the tensile machine 6.
In the figure, 7 indicates a cutting device. It should be noted that FIG. 1 shows only an example of the pultrusion molding method, and does not limit the present invention.

【0020】[0020]

【実施例】【Example】

実施例1 キシレン変性フェノール樹脂(三菱ガス化学社製商品名
「Nikanol PR−1540M」)100重量部
と、内部離型剤(Axel社製商品名「Mold Wi
z INT−1850」)2重量部を含浸用樹脂槽内へ
装入して均一に混合し、これにガラスロービング(日本
硝子繊維社製商品名「PER231−FW22」を31
本束ねたものを引き通して含浸し、Pultrex社製
の引抜成形機を用いて、金型加熱温度200℃、引抜速
度0.2m/minで直径10mmのロッド状成形体を
引抜成形した。得られた成形体の強度を3点曲げ試験に
よって測定したところ、590MPaであった。
Example 1 100 parts by weight of a xylene-modified phenol resin (trade name "Nikanol PR-1540M" manufactured by Mitsubishi Gas Chemical Co., Inc.) and an internal mold release agent (trade name "Mold Wi" manufactured by Axel Co.).
z INT-1850 ") 2 parts by weight are charged into a resin tank for impregnation and mixed uniformly, and glass roving (trade name" PER231-FW22 "manufactured by Nippon Glass Fiber Co., Ltd.) is added thereto.
The bundled pieces were passed through and impregnated, and a rod-shaped molded body having a diameter of 10 mm was pultrusion-molded at a mold heating temperature of 200 ° C. at a pultrusion speed of 0.2 m / min using a Pultrex pultrusion molding machine. When the strength of the obtained molded body was measured by a three-point bending test, it was 590 MPa.

【0021】実施例2 上記実施例1において、含浸用樹脂に硬化触媒として酸
化カルシウムを2重量部追加し、引抜速度を0.5m/
minに高めた以外は実施例1と同様にしてロッド状成
形体の引抜成形を行なった。得られた引抜成形体の3点
曲げ強度は620MPaであった。
Example 2 In the above Example 1, 2 parts by weight of calcium oxide was added to the impregnating resin as a curing catalyst, and the drawing speed was 0.5 m / m.
The rod-shaped molded body was subjected to pultrusion molding in the same manner as in Example 1 except that it was increased to min. The three-point bending strength of the obtained pultrusion molding was 620 MPa.

【0022】実施例3 上記実施例1において「Nikanol PR−154
0M」50重量部とフェノール樹脂(大日本インキ化学
社製商品名「Dislic−300X」)50重量部及
び酸化カルシウム2重量部を使用し、引抜速度を0.3
m/minとした以外は実施例1と同様にして引抜成形
を行なった。得られたロッド状引抜成形体の3点曲げ強
度は583MPaであった。
Example 3 In the above Example 1, "Nikanol PR-154" was used.
50 parts by weight of 0M, 50 parts by weight of a phenol resin (trade name "Dislic-300X" manufactured by Dainippon Ink and Chemicals, Inc.) and 2 parts by weight of calcium oxide are used, and a drawing speed is 0.3.
Pultrusion molding was performed in the same manner as in Example 1 except that m / min was set. The three-dimensional bending strength of the obtained rod-shaped pultrusion molding was 583 MPa.

【0023】比較例1 前記実施例1において、「Nikanol PR−15
40M」に代えてBPChemical社製のフェノー
ル樹脂「Cellobond J2040L」を使用し
た以外は全く同様にしてロッド状引抜成形体を得た。こ
の成形体の3点曲げ強度は315MPaであり、実施例
1で得た成形体に比べて強度に劣るものであった。
Comparative Example 1 In the above-mentioned Example 1, "Nikanol PR-15" was used.
A rod-shaped pultrusion molded article was obtained in exactly the same manner except that a phenol resin "Cellobond J2040L" manufactured by BP Chemical Co. was used instead of "40M". The three-point bending strength of this molded product was 315 MPa, which was inferior to the molded product obtained in Example 1 in strength.

【0024】比較例2 前記実施例3において、フェノール樹脂「Dislic
−300X」を単独で使用した以外は全く同様にしてロ
ッド状成形体を得た。該成形体の3点曲げ強度は400
MPaであり、実施例3で得た成形体に比べて強度に劣
るものであった。
Comparative Example 2 In Example 3, the phenol resin "Dislic" was used.
A rod-shaped molded body was obtained in exactly the same manner except that "-300X" was used alone. The three-point bending strength of the molded body is 400
It was MPa, and was inferior in strength to the molded body obtained in Example 3.

【0025】[0025]

【発明の効果】本発明は以上の様に構成されており、含
浸樹脂としてキシレン変性フェノール樹脂を主成分とす
るフェノール系樹脂を使用することによって、含浸時の
低粘度化と高濃度化を同時に達成することができ、それ
によりボイド欠陥等がなく優れた強度特性の引抜成形体
を生産性良く製造し得ることになった。
EFFECTS OF THE INVENTION The present invention is configured as described above, and by using a phenolic resin containing a xylene-modified phenolic resin as a main component as an impregnating resin, it is possible to simultaneously reduce the viscosity during impregnation and increase the concentration. Therefore, it is possible to manufacture a pultrusion molded article having excellent strength characteristics without void defects and the like with high productivity.

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

【図1】図1は本発明を実施する際に使用される引抜成
形状況を例示する概略説明図である。
FIG. 1 is a schematic explanatory view illustrating a pultrusion molding condition used when carrying out the present invention.

【符号の説明】[Explanation of symbols]

1 強化繊維ロービング 2 強化繊維マット 3 含浸樹脂槽 4 フォーミング装置 5 加熱金型 6 引抜機 7 カッター 1 Reinforcing fiber roving 2 Reinforcing fiber mat 3 Impregnated resin tank 4 Forming device 5 Heating die 6 Drawer 7 Cutter

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 引抜成形法によって繊維強化フェノール
系樹脂成形体を製造するに当たり、含浸樹脂としてキシ
レン変性フェノール樹脂を主成分とするフェノール系樹
脂を使用することを特徴とする繊維強化フェノール系樹
脂成形体の製法。
1. A fiber-reinforced phenolic resin molding characterized by using a phenolic resin containing a xylene-modified phenolic resin as a main component as an impregnating resin when producing a fiber-reinforced phenolic resin molded product by a pultrusion molding method. How to make a body.
【請求項2】 フェノール系樹脂の硬化触媒として酸化
カルシウムを使用する請求項1記載の製法。
2. The method according to claim 1, wherein calcium oxide is used as a curing catalyst for the phenolic resin.
JP7020750A 1995-02-08 1995-02-08 Manufacture of fiber-reinforced phenol resin molding Withdrawn JPH08216268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7020750A JPH08216268A (en) 1995-02-08 1995-02-08 Manufacture of fiber-reinforced phenol resin molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7020750A JPH08216268A (en) 1995-02-08 1995-02-08 Manufacture of fiber-reinforced phenol resin molding

Publications (1)

Publication Number Publication Date
JPH08216268A true JPH08216268A (en) 1996-08-27

Family

ID=12035874

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7020750A Withdrawn JPH08216268A (en) 1995-02-08 1995-02-08 Manufacture of fiber-reinforced phenol resin molding

Country Status (1)

Country Link
JP (1) JPH08216268A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980070843A (en) * 1997-01-27 1998-10-26 카이쟈키요이치로 Wood finish
WO1999028101A1 (en) * 1997-11-28 1999-06-10 Bridgestone Corporation Ligneous finishing material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980070843A (en) * 1997-01-27 1998-10-26 카이쟈키요이치로 Wood finish
WO1999028101A1 (en) * 1997-11-28 1999-06-10 Bridgestone Corporation Ligneous finishing material

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