JPH03140332A - Production of fiber-reinforced phenolic resin molded article - Google Patents
Production of fiber-reinforced phenolic resin molded articleInfo
- Publication number
- JPH03140332A JPH03140332A JP28040089A JP28040089A JPH03140332A JP H03140332 A JPH03140332 A JP H03140332A JP 28040089 A JP28040089 A JP 28040089A JP 28040089 A JP28040089 A JP 28040089A JP H03140332 A JPH03140332 A JP H03140332A
- Authority
- JP
- Japan
- Prior art keywords
- phenolic resin
- fiber
- molded article
- resin molded
- 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.)
- Granted
Links
- 239000005011 phenolic resin Substances 0.000 title claims abstract description 24
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229920001568 phenolic resin Polymers 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 10
- 230000002378 acidificating effect Effects 0.000 claims abstract description 5
- 239000011134 resol-type phenolic resin Substances 0.000 claims description 6
- 238000007731 hot pressing Methods 0.000 claims description 2
- 229920003987 resole Polymers 0.000 abstract description 9
- 229920005989 resin Polymers 0.000 abstract description 5
- 239000011347 resin Substances 0.000 abstract description 5
- 238000004898 kneading Methods 0.000 abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 7
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 2
- 229940100630 metacresol Drugs 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- QPVRKFOKCKORDP-UHFFFAOYSA-N 1,3-dimethylcyclohexa-2,4-dien-1-ol Chemical compound CC1=CC(C)(O)CC=C1 QPVRKFOKCKORDP-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 210000000329 smooth muscle myocyte Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は１作業性、硬化性に優れ、腐食性のない熱硬化
型繊維強化フェノール樹脂成形物の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for producing a thermosetting fiber-reinforced phenolic resin molded product that has excellent workability, curability, and is non-corrosive.
［従来の技術］
フェノール樹脂は、不飽和ポリエステルに比べ耐熱性、
耐燃性に優れでおり、近年不飽和ポリエステルに代わり
繊維強化マトリクスに使用する試みがなされている。常
温・中温硬化型繊維強化フェノール樹脂成形物は、通常
液状レゾール型フェノール樹脂に酸硬化剤を添加し、必
要に応じ充填剤５着色剤などを配合して繊維に含浸し、
水分等の揮発成分を含有したまま硬化させることにより
製造させる。[Conventional technology] Phenol resin has higher heat resistance and better heat resistance than unsaturated polyester.
It has excellent flame resistance, and in recent years attempts have been made to use it in fiber-reinforced matrices instead of unsaturated polyester. Room-temperature/medium-temperature curing fiber-reinforced phenolic resin moldings are usually made by adding an acid curing agent to liquid resol type phenolic resin, blending fillers, coloring agents, etc. as necessary, and impregnating it into fibers.
It is manufactured by curing while containing volatile components such as moisture.
しかしながら、こうした酸硬化剤の使用は、シート状樹
脂組成物（以下、ＳＭＣという、）もしくはブロック状
樹脂組成物（以下、ＢＭＣという、）のごとき中間的組
成物を製造し、ある期間の製品ライフを持たせようとし
た場合、低温領域においても速やかに反応が進み可使時
間が極めて短いという欠点を有する。また、硬化触媒と
して用いる強酸性物質が最終製品の中に残存するため金
属類等と接触する場所では、その腐食をするという問題
が発生する。However, the use of such acid curing agents can lead to the production of intermediate compositions such as sheet-shaped resin compositions (hereinafter referred to as SMC) or block-shaped resin compositions (hereinafter referred to as BMC), and the product life for a certain period of time. If it is attempted to have this, the reaction proceeds rapidly even in low temperature ranges, resulting in an extremely short pot life. Furthermore, since the strongly acidic substance used as a curing catalyst remains in the final product, there is a problem in that it corrodes where it comes into contact with metals and the like.
［発明が解決しようとする課ｍ］
本発明は、上記事情に鑑み、硬化性が早く、かつ安定性
に優れ、更に最終製品中に強酸成分を残存させることの
ない繊維強化フェノール樹脂成形物を提供するものであ
る。[Issues to be solved by the invention] In view of the above circumstances, the present invention provides a fiber-reinforced phenolic resin molded product that is quick to cure, has excellent stability, and does not leave a strong acid component in the final product. This is what we provide.
１課題を解決するための手段１
本発明は、硬化速度及び樹脂ｐ Ｈにおいて特定された
液状レゾールをフェノール樹脂を用い繊維とあらかじめ
混練し、ＳＭＣもしくはＢＭＣを製造することにより、
安定性に優れ、かつ硬化性の速い組成物が１７られるこ
とを見出し、上記目的を達成した。1 Means for Solving the Problem 1 The present invention produces SMC or BMC by kneading in advance a liquid resol with a specified curing speed and resin pH with fibers using a phenolic resin.
It has been discovered that a composition with excellent stability and quick curability can be prepared, and the above object has been achieved.
すなわち本発明は、１５０℃における硬化速度が１０〜
６０秒の範囲であり、 Ｌｌつｐ １１３〜７の弱酸性
である液状レゾール型フェノール樹脂と繊維とをあらか
じめＲＭし、シート状もしくはブロック状の組成物を製
造し、しかるのち熱プレスにより硬化を行なうことを特
徴とする繊維強化フェノール樹脂成形物の製造方法に関
する。That is, in the present invention, the curing rate at 150°C is 10 to
A weakly acidic liquid resol type phenolic resin with a Llp of 113 to 7 is RMed in advance for 60 seconds to produce a sheet-like or block-like composition, and then hardened by hot pressing. The present invention relates to a method for producing a fiber-reinforced phenolic resin molded article.
［作 用Ｊ
繊維の結合を行なうフェノール樹脂において、その硬化
時間を極めて短くすることにより、フェノール樹脂がそ
の反応時に放出する縮合水を包含したまま三次元化硬化
反応が起こり、その結果寸法安定性、均一な強度が（１
られるものと推定されろ、また、液状フェノール樹脂の
ｐＨを３〜７の弱酸性に請撃しておくことにより、特に
ｊａ維としてガラス繊維を用いた場合、溶出するアルカ
リ成分をキャッチし、安定した硬化速度が（ｌられるも
のと推定される。[Function J] By extremely shortening the curing time of the phenol resin that binds fibers, a three-dimensional curing reaction occurs while the phenol resin still contains the condensation water released during the reaction, resulting in improved dimensional stability. , the uniform intensity is (1
In addition, by adjusting the pH of the liquid phenol resin to a weak acidity of 3 to 7, especially when glass fiber is used as the JA fiber, the alkaline component eluted can be caught and stabilized. It is estimated that the curing rate is (1).
本発明において用いられる液状レゾール型フェノール尉
脂は、フェノールＩＯ１モルに対しアルデヒド頚１〜４
モル、好ましくは１〜２．５モルをアルカリ性触媒の存
在下で反応せしめ、しかる後中和を行ない、ｐＨを３〜
７に調整し−Ｃ得られる液状レゾールをフェノール樹脂
初期縮合物であり１且つその硬化速度は１５０℃におい
て１０〜６０秒という極めて短い範囲になるよう、３！
整させなければならない。The liquid resol type phenol resin used in the present invention has an aldehyde content of 1 to 4% per mole of phenol IO.
mol, preferably 1 to 2.5 mol, are reacted in the presence of an alkaline catalyst, followed by neutralization to a pH of 3 to 2.5 mol.
7 and -C so that the obtained liquid resol is a phenolic resin initial condensate and its curing speed is within an extremely short range of 10 to 60 seconds at 150°C.
I have to get it in order.
この硬化速度を速める方法としでは、用いるフェノール
類としてメタクレゾール、３．５キシレノール、レゾル
シンのごとき極めて反応性に富むモノマーを併用する、
あるいは塩化カルシューム、硝酸ニッケルのごときレゾ
ール型フェノール樹脂初ｗ４縮合物の硬化を速める酸性
金属塩類を添加する方法とが挙げられる。As a method of accelerating this curing speed, highly reactive monomers such as metacresol, 3.5 xylenol, and resorcinol are used in combination with the phenols used.
Alternatively, there is a method of adding acidic metal salts such as calcium chloride or nickel nitrate to accelerate the curing of the resol type phenolic resin initial W4 condensate.
また、液状レゾール型フェノール樹脂初期縮合物のｐ
Ｈを３以下にすると可使時間が極めて短くなり、ｐｆｌ
が７以上の場合には特にガラス繊維を用いた場合、経口
によりアルカリの溶出の影響を受け、硬化速度が遅くな
る等の弊害を生ずる。In addition, p of the liquid resol type phenolic resin initial condensate
If H is 3 or less, the pot life will be extremely short, and pfl
If it is 7 or more, especially when glass fiber is used, it will be affected by the elution of alkali orally, causing problems such as slow curing speed.
本発明におけるＳＭＣもしくはＩ３ＭＣの製造方法とし
ては、従来より用いられている方法を使用することが出
来る１例えば、ＳＭＣの製造方法においては、液状レゾ
ール型フェノール崩脂をフィラー類と充分に混合し１次
に雌型性を有するフィルムの上にこれらの組成物と繊維
とを交互にのせながらシート状に引き抜いてい（ことに
より製造される。As the method for producing SMC or I3MC in the present invention, conventionally used methods can be used. For example, in the method for producing SMC, liquid resol type phenol crumble is thoroughly mixed with fillers. Next, these compositions and fibers are placed alternately on a female-type film and drawn out into a sheet (this is how the film is manufactured).
これらのＳＭＣやＢＭＣを所定の金型に入れ、１１０〜
２００℃、好ましくは１２０〜１８０℃の温度ａｉｆｉ
囲にて加熱プレス成形を行なうことにより繊維強化フェ
ノール樹脂成形物か得られる。These SMCs and BMCs are put into a specified mold and heated at 110~
Temperature aifi of 200℃, preferably 120-180℃
A fiber-reinforced phenol resin molded product can be obtained by performing hot press molding in a surrounding environment.
［天施例］ 以下、実施例により本発明を更に詳しく説明する。[Heavenly example] Hereinafter, the present invention will be explained in more detail with reference to Examples.
（実施例１）
（液状レゾール撃フェノール樹脂の製造）四ツ目フラス
コにフェノール１００重量部、３７％ホルムアルデヒド
水溶液！４５１ＬＲ部。(Example 1) (Production of liquid resol permeable phenolic resin) 100 parts by weight of phenol and 37% formaldehyde aqueous solution in a four-eye flask! 451LR section.
２０％水酸化ナトリウム水溶液６重量部を仕込み、８０
℃−３時間反応させた０次に冷却し。Prepare 6 parts by weight of 20% aqueous sodium hydroxide solution,
The mixture was allowed to react for 3 hours at -0°C and then cooled.
１５％硫酸水溶液を用いてｐＨ７，５に調整し、その後
減圧下で樹脂中の水分が１０％以下になるまで系内の水
を除去した。更に、硝酸ニッケル５重量部を添加瀉解し
、液状レゾール型フェノール樹脂を得た。この物性は粘
度７０００ｃｐｓ。The pH was adjusted to 7.5 using a 15% aqueous sulfuric acid solution, and then water in the system was removed under reduced pressure until the water content in the resin became 10% or less. Furthermore, 5 parts by weight of nickel nitrate was added and dissolved to obtain a liquid resol type phenol resin. This physical property has a viscosity of 7000 cps.
不揮発分７５％、１５０℃、硬化速度２８秒、ｐＨ５，
８であった。Nonvolatile content 75%, 150°C, curing speed 28 seconds, pH 5,
It was 8.
なお、硬化速度は以下の方法により測定した。In addition, the curing speed was measured by the following method.
あらかじめホットプレートを１５０±０５℃に調整し、
その上に測定試料１．０ｇを乗せ、ストップウォッチを
スタートする。その試料を長さ２００ｍｍ、幅２０ｍｍ
、厚さ０．６ｍｍのスバチュラを用い、約５ｃｍ角に広
げる。その後、スパチュラの先端部より３ｃｍ程度ホッ
トプレートに押し付け２次に手前に約２ｃｍ程度ストロ
ークする。このストロークを毎秒１回の割合で横方向に
３回繰返す、このとき、試料の広がりは出来るだけ５ｃ
ｍ角に入るようにする。試料の硬化が進行すると、徐々
に糸を引くようになり、更に硬化が進むと試料が非粘着
状態になり、ついには糸を引かなくなる。このとき、ス
トップウォッチを止め、この時間を１５０℃硬化速度と
した。Adjust the hot plate to 150±05℃ in advance,
Place 1.0 g of the sample to be measured on top of it and start the stopwatch. The sample is 200mm long and 20mm wide.
Using a 0.6mm thick sbatula, spread it out to about 5cm square. Then, press the tip of the spatula about 3 cm against the hot plate and then stroke it about 2 cm towards you. Repeat this stroke 3 times in the lateral direction at a rate of once per second. At this time, the spread of the sample should be as much as 5 cm.
Make sure it fits into the m-square. As the sample hardens, it gradually becomes stringy, and as the curing progresses further, the sample becomes non-adhesive and eventually stops stringing. At this time, the stopwatch was stopped, and this time was defined as the 150° C. curing speed.
（ＢＭＣの製造）
得られた液状レゾール型フェノール樹脂１００ｆｆｔ量
部に対し−、クレイ５０重量部、タルクツ０１ｎ玉部を
添加し、ニーダ−で充分に混練し、ついでガラス繊維チ
ョップ（繊維長３ｍｍ１５０重量部を入れ手早く混練し
た後、ブロック状にして取り出しＩ３ＭＣを得た。(Manufacture of BMC) 50 parts by weight of clay and 1 part by weight of Talkutu were added to 100 fft of the obtained liquid resol type phenolic resin, thoroughly kneaded in a kneader, and then chopped glass fibers (150 parts by weight with a fiber length of 3 mm) were added. After quickly kneading the mixture, it was made into a block and taken out to obtain I3MC.
（成形品の製造）
製造したＢＭＣを２００ｍｍＸ２００ｍｍＸ３ｍｍの金
型に入れ、１５０℃、３分、５０Ｋ ｇ ｆ ／ ｃ
ｍ ”の条件でプレス成形を行ない、目的の繊維強化フ
ェノール樹脂成形物を得た。特性は第１表に示す。(Manufacture of molded product) The manufactured BMC was placed in a mold of 200 mm x 200 mm x 3 mm, and heated at 150°C for 3 minutes at 50K g f/c.
Press molding was carried out under the conditions of ``m'' to obtain the desired fiber-reinforced phenol resin molded product.The properties are shown in Table 1.
また、上記により得られたＢＭＣ組成物を５℃で２ケ月
間保存した後成形品を製造したが、強度特性、硬化性等
に変化は認められなかった。Further, the BMC composition obtained above was stored at 5° C. for 2 months and then a molded article was produced, but no change was observed in the strength characteristics, curability, etc.
（実施例２） 実施例１にて製造したＢＭＣを１２０℃。(Example 2) The BMC produced in Example 1 was heated to 120°C.
１０分、５０Ｋｇｆ／ｃｍ”の条件でプレス成形を行な
い、目的の繊維強化フェノール樹脂成形物を得た。特性
は第１表に示す。Press molding was carried out for 10 minutes at 50 Kgf/cm" to obtain the desired fiber-reinforced phenol resin molded product. The properties are shown in Table 1.
（実施例３）
フェノール８０重量部、メタクレゾール２０重量部、３
７％ホルムアルデヒド水溶液１３（ｉｔ量部、２０％水
酸化ナトリウム水溶液４重砥部をフラスコに仕込み、４
０℃−２時間反応したｖｔ湿温度７０℃に上げ、更に３
時間反応させた０反応路Ｙ後、２０％燐酸水溶液をゆっ
くり添加し。(Example 3) 80 parts by weight of phenol, 20 parts by weight of metacresol, 3
Charge 13 parts of 7% formaldehyde aqueous solution and 4 parts of 20% sodium hydroxide aqueous solution into a flask,
After reacting at 0°C for 2 hours, the humidity temperature was increased to 70°C, and the temperature was further increased for 3 hours.
After 0 reaction time Y, 20% phosphoric acid aqueous solution was slowly added.
ｐ Ｈを６５に調整し、その後減圧下で樹脂不揮発分が
７５％になるまで系内の水分を除去した。The pH was adjusted to 65, and then water in the system was removed under reduced pressure until the resin nonvolatile content was 75%.
この物性は粘度８５００ｃｐｓ、１５０’ｃ硬化速度５
６秒であった。以下、実施例１と同様の方法に従い、Ｂ
ＭＣ，［４を強化フェノール樹脂成形物を製造した。そ
の特性値は第１：ｋに示す。This physical property has a viscosity of 8500 cps and a curing rate of 150'c of 5.
It was 6 seconds. Hereinafter, according to the same method as in Example 1, B
A reinforced phenolic resin molded product was produced using MC, [4. Its characteristic values are shown in 1st:k.
（実施例４）
フェノール８０！［１！Ｌ部、レゾルシン２０屯砥部、
３７％ホルムアルデヒド
部，２０％水酸化ナトリウム水溶液４重Ｔ部を仕込み、
以ド実施例３と同様の方法に従いＢＭＣ及び＃Ｉ維強化
フェノール樹脂成形物を製造した．その特性値は第１表
に示す。(Example 4) Phenol 80! [1! L part, 20 tons of resorcinol,
Prepare 37% formaldehyde part and 20% sodium hydroxide aqueous solution 4 parts T,
Following the same method as in Example 3, BMC and #I fiber reinforced phenolic resin molded articles were manufactured. Its characteristic values are shown in Table 1.
（比較例１）
実施例１ （液状レゾール〜！フェノール樹脂の製造）
において、その配合より硝酸ニッケルを削除し，それ以
外は同様に実施した．その特性は第１表に示す。(Comparative Example 1) Example 1 (Liquid resol! Manufacture of phenolic resin)
The same procedure was used except that nickel nitrate was removed from the formulation. Its properties are shown in Table 1.
（比較例２，３）
比較例１と同様の方法に従い，但し第１表２赦の処方で
実施した．その特性は第１ａに示す。(Comparative Examples 2 and 3) The same method as in Comparative Example 1 was followed, except that the formulation in Table 1, Section 2 was used. Its properties are shown in section 1a.
（以下余白）
［！明の効果Ｊ
本発明は、第１表の特性値より明らかな如く、極めて安
定性に冨み、且つ硬化性、成形性に優れており、しかも
繊維強化フェノール樹脂成形物の特徴である良好な耐燃
焼性を合わせ持ち、繊維強化樹脂成形物として極めて有
用なものである。(Left below) [! As is clear from the characteristic values in Table 1, the present invention has extremely high stability, excellent curability and moldability, and also has excellent properties that are characteristic of fiber-reinforced phenolic resin moldings. It also has flame resistance and is extremely useful as a fiber-reinforced resin molded product.
Claims (1)
、且つｐＨ３〜７の弱酸性である液状レゾール型フェノ
ール樹脂と繊維とをあらかじめ混練し、シート状もしく
はブロック状の組成物を製造し、しかるのち熱プレスに
より硬化を行なうことを特徴とする繊維強化フェノール
樹脂成形物の製造方法。A liquid resol-type phenolic resin having a curing rate of 10 to 60 seconds at 150°C and a weakly acidic pH of 3 to 7 is kneaded with fibers in advance to produce a sheet-like or block-like composition, and then A method for producing a fiber-reinforced phenolic resin molded article, which is characterized in that it is subsequently cured by hot pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28040089A JPH03140332A (en) | 1989-10-27 | 1989-10-27 | Production of fiber-reinforced phenolic resin molded article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28040089A JPH03140332A (en) | 1989-10-27 | 1989-10-27 | Production of fiber-reinforced phenolic resin molded article |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03140332A true JPH03140332A (en) | 1991-06-14 |
| JPH0559128B2 JPH0559128B2 (en) | 1993-08-30 |
Family
ID=17624502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28040089A Granted JPH03140332A (en) | 1989-10-27 | 1989-10-27 | Production of fiber-reinforced phenolic resin molded article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03140332A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999028383A1 (en) * | 1997-12-03 | 1999-06-10 | Toray Industries, Inc. | Phenolic resin composition for fiber-reinforced composite material, prepreg for fiber-reinforced composite material, and process for producing prepreg for fiber-reinforced composite material |
-
1989
- 1989-10-27 JP JP28040089A patent/JPH03140332A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999028383A1 (en) * | 1997-12-03 | 1999-06-10 | Toray Industries, Inc. | Phenolic resin composition for fiber-reinforced composite material, prepreg for fiber-reinforced composite material, and process for producing prepreg for fiber-reinforced composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0559128B2 (en) | 1993-08-30 |
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