JPS6049211B2 - Carbon fiber prepreg and its manufacturing method - Google Patents
Carbon fiber prepreg and its manufacturing methodInfo
- Publication number
- JPS6049211B2 JPS6049211B2 JP960878A JP960878A JPS6049211B2 JP S6049211 B2 JPS6049211 B2 JP S6049211B2 JP 960878 A JP960878 A JP 960878A JP 960878 A JP960878 A JP 960878A JP S6049211 B2 JPS6049211 B2 JP S6049211B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon fiber
- unsaturated polyester
- mol
- parts
- 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.)
- Expired
Links
- 229920000049 Carbon (fiber) Polymers 0.000 title claims description 35
- 239000004917 carbon fiber Substances 0.000 title claims description 35
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 21
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims description 18
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 17
- 229920006305 unsaturated polyester Polymers 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 239000011342 resin composition Substances 0.000 claims description 12
- 239000001530 fumaric acid Substances 0.000 claims description 9
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 8
- 239000004641 Diallyl-phthalate Substances 0.000 claims description 7
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 7
- OMNKZBIFPJNNIO-UHFFFAOYSA-N n-(2-methyl-4-oxopentan-2-yl)prop-2-enamide Chemical compound CC(=O)CC(C)(C)NC(=O)C=C OMNKZBIFPJNNIO-UHFFFAOYSA-N 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 4
- 239000012943 hotmelt Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229920005989 resin Polymers 0.000 description 13
- 239000011347 resin Substances 0.000 description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 7
- 239000002131 composite material Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 5
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 239000001361 adipic acid Substances 0.000 description 2
- 235000011037 adipic acid Nutrition 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- QEQBMZQFDDDTPN-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy benzenecarboperoxoate Chemical compound CC(C)(C)OOOC(=O)C1=CC=CC=C1 QEQBMZQFDDDTPN-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- ZHJAJTDVKRRACB-WLHGVMLRSA-N benzene-1,3-dicarboxylic acid;(e)-but-2-enedioic acid Chemical compound OC(=O)\C=C\C(O)=O.OC(=O)C1=CC=CC(C(O)=O)=C1 ZHJAJTDVKRRACB-WLHGVMLRSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Description
【発明の詳細な説明】
本発明は不飽和ポリエステルをマトリックスとする炭素
繊維プリプレグ及びその製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a carbon fiber prepreg having an unsaturated polyester as a matrix and a method for producing the same.
炭素嵐維は、合成樹脂との複合材料用強化材として優れ
たものであることが知られ、その一成形方法として未硬
化樹脂を含浸させたいわゆるプリプレグを経て成形硬化
し、製品とする方法が採用されている。この炭素繊維の
プリプレグは、炭素繊維との親和性及びマトリックスの
安定性からくるプリプレグの保存性の面から主としてエ
ポキシ系樹脂を主体とするものが使用されてきた。Carbon Arashi fiber is known to be an excellent reinforcing material for composite materials with synthetic resins, and one method for forming it is to form a so-called prepreg impregnated with uncured resin and then mold and harden it into a product. It has been adopted. This carbon fiber prepreg has been mainly made of epoxy resin from the viewpoint of pre-preg storage stability due to its affinity with carbon fibers and stability of the matrix.
しかし、エポキシ系樹脂は、成形硬化に時間がかゝり生
産性が低いという問題を含んでいる。一方、不飽和ポリ
エステル系樹脂は、硬化時間が短く、高い生産性が期待
でき不飽和ポリエステルをマトリックスとしたガラス繊
維複合材料とのハイブリットとしての用途面においても
期待できる反面、炭素繊維との親和性が悪く、得られた
複合材料の層間せん断強度が低く、比較的親和性が高い
といわれるイソフタル酸系の不飽和ポリエステルにおい
ても、例えばエポキシ樹脂をマトリックスとした場合の
９に９／一に匹敵する充分な層間せん断強度を有してい
るとは言えず、炭素繊維とＪの親和性の高い不飽和ポリ
エステルがあればこの点の改善が期待される。However, epoxy resins have the problem of slow molding and curing and low productivity. On the other hand, unsaturated polyester resins have a short curing time, can be expected to have high productivity, and can be used as a hybrid with glass fiber composite materials using unsaturated polyester as a matrix. Even with isophthalic acid-based unsaturated polyester, which is said to have a relatively high affinity, the interlaminar shear strength of the resulting composite material is low, and it is comparable to 9/1 when using an epoxy resin as a matrix, for example. It cannot be said that it has sufficient interlaminar shear strength, and an unsaturated polyester that has a high affinity for carbon fiber and J is expected to improve this point.
更に、プリプレグの製造法として溶剤法とホットメルト
法があるが、溶剤法は、残留溶媒による複合材料の強度
低下、製造工程中溶剤の蒸発によする作業環境及び防災
上の問題、溶剤回収に伴う設備費の上昇等の問題点を含
んでいる。Furthermore, there are two methods for manufacturing prepreg: the solvent method and the hot melt method, but the solvent method has problems such as a decrease in the strength of the composite material due to residual solvent, problems with the working environment and disaster prevention due to evaporation of the solvent during the manufacturing process, and problems with solvent recovery. This includes problems such as increased equipment costs.
このため、ホットメルト法が容易ではあるが熱による樹
脂の架橋化、変質等の問題がある。従つて不飽和ポリエ
ステルにおいて、炭素繊維との親和性が高くしかも熱に
対し比較的安定な不飽和ポリエステルがあれば作業性の
良い、有用な炭素繊維プリプレグが得られる。Therefore, although the hot melt method is easy, there are problems such as crosslinking and deterioration of the resin due to heat. Therefore, among the unsaturated polyesters, if there is an unsaturated polyester that has a high affinity with carbon fibers and is relatively stable against heat, a useful carbon fiber prepreg with good workability can be obtained.
本発明者等は、このような問題について研究の結果イソ
フタル酸−フマル酸を二塩基酸成分とし、プロピレング
リコールをグリコール成分とする成分系不飽和ポリエス
テルを使用し、その成分組成比の選択によつて上述の如
き問題点を解決し得ることを見出した。As a result of research into this problem, the present inventors used an unsaturated polyester containing isophthalic acid-fumaric acid as the dibasic acid component and propylene glycol as the glycol component, and found that by selecting the component composition ratio, We have found that the above-mentioned problems can be solved.
すなわち本発明は、その構成単位がイソフタール酸２０
〜６０部（モル）、フマール酸８０〜功部（モル）、プ
ロピレングリコール１０娼（モル）とからなる不飽和ポ
リエステルプレポリマーとジアリルフタレート又はジア
セトンアクリルアミド１０〜５０％（重量）及び硬化触
媒を含む不飽和ポリエステル樹脂組成物をホットメルト
法により炭素繊維集合体に含浸させた不飽和ポリエステ
ル樹脂をマトリックスとする炭素繊維プリプレグである
。That is, in the present invention, the structural unit is isophthalic acid 20
An unsaturated polyester prepolymer consisting of ~60 parts (mol) of fumaric acid, 80~90 parts (mol) of fumaric acid, 10 parts (mol) of propylene glycol, 10~50% (weight) of diallyl phthalate or diacetone acrylamide, and a curing catalyst. This is a carbon fiber prepreg whose matrix is an unsaturated polyester resin in which a carbon fiber aggregate is impregnated with an unsaturated polyester resin composition containing the above-mentioned unsaturated polyester resin composition by a hot melt method.
更に本発明はかかる炭素繊維プリプレグの製造方法であ
り、不飽和ポリエステル樹脂組成物を離型紙上に展延し
てフィルム状となし、この上に炭素繊維集合体を配し、
４０〜１５０℃で加熱圧縮して炭素繊維集合体に当該樹
脂組成物を含浸させる方法である。このようにして得た
プリプレグは炭素繊維集合体として優れたものてあり特
に複合材料とした場合の層間せん断力の高いものが得ら
れる。Furthermore, the present invention is a method for manufacturing such a carbon fiber prepreg, in which an unsaturated polyester resin composition is spread on a release paper to form a film, a carbon fiber aggregate is arranged on this,
This is a method in which carbon fiber aggregates are impregnated with the resin composition by heating and compressing at 40 to 150°C. The prepreg thus obtained is excellent as a carbon fiber aggregate, and in particular can have a high interlaminar shear force when used as a composite material.
又ここに用いられた樹脂組成物は、プリプレグ製造工程
．中に受ける熱履歴に耐えて極めて良好な樹脂状態とシ
ート性を有する炭素繊維プリプレグとなる。ここで用い
られる炭素繊維集合体とは炭素繊維フィラメント、チヨ
ツプドストランドあるいは分繊マット等てあり、この離
型紙上に展延された樹ｊ脂組成物上に配され押圧によつ
て樹脂組成物が含浸される。この樹脂組成物は、前述の
範囲内において８０℃における粘度が３０〜３００ポイ
ズになる如く調整することが好ましい。この樹脂組成物
を炭素繊維集Ｚ合体に含浸させる際８０〜１５０℃好ま
しくは１１０〜１３０゜Ｃに加熱された加熱板上を５〜
１２叱′通し、樹脂の粘度を下げた後４０〜１５０′Ｃ
好ましくは８０〜１２０℃に加熱されたブレスローラー
で線圧０．１〜１０ｋ９／ｄ好ましくは３〜６ｋ９／Ｇ
にて押圧し、炭素繊維集合体に樹脂を含浸させ、又平行
に並べられた炭素繊維フィラメントは押し拡げられ、均
一に配列されたプリプレグとすることができる。本発明
に用いられる樹脂組成物において、イソフタール酸とフ
マール酸の比が２０〜（１）部（モル）対８０−菊部（
モル）の範囲を外れると炭素繊維との親和性が低くなり
複合材料としたときの層間せん断力が低くなる。フ又ジ
アリルフタレート又はジアセトンアクリルアミドがプレ
ポリマー１００部（重量）に対し５０％（重量）を越え
ると樹脂の溶融粘度が低下し、プリプレグのタンクが過
度に強くなる。In addition, the resin composition used here is used in the prepreg manufacturing process. The result is a carbon fiber prepreg that can withstand the heat history experienced inside and has extremely good resin condition and sheet properties. The carbon fiber aggregates used here are carbon fiber filaments, chopped strands, split mats, etc., and are placed on the resin composition spread on the release paper and pressed to release the resin. The composition is impregnated. This resin composition is preferably adjusted to have a viscosity of 30 to 300 poise at 80°C within the above-mentioned range. When this resin composition is impregnated into the carbon fiber aggregate Z, it is heated on a heating plate heated to 80 to 150°C, preferably 110 to 130°C.
12' to lower the viscosity of the resin and then 40 to 150'C.
Linear pressure of 0.1 to 10 k9/d, preferably 3 to 6 k9/G, preferably with a press roller heated to 80 to 120°C
The carbon fiber aggregate is impregnated with resin, and the carbon fiber filaments arranged in parallel are pressed and spread to form a uniformly arranged prepreg. In the resin composition used in the present invention, the ratio of isophthalic acid to fumaric acid is 20 to (1) part (mol) to 80 - Kiku part (mol).
If the amount is outside the range (mole), the affinity with carbon fibers will be low and the interlayer shear force will be low when used as a composite material. If diallyl phthalate or diacetone acrylamide exceeds 50% (by weight) based on 100 parts (by weight) of the prepolymer, the melt viscosity of the resin decreases and the prepreg tank becomes excessively strong.
一方１０％（重量）未満のように少くなると層間せん断
力が門低下する。架橋用ジアリルフタレート又はジアセ
トンアクリルアミドの量は１０〜５０％（重量）特に好
ましくは１５〜３５％（重量）が好ましい。不飽和ポリ
エステルプレポリマーの構成単位として、プロピレング
リコール１８％（重量）、ジエ〔チレングリコール２７
％、フマール酸３４％、アジピン酸７％、イソフタール
酸１４％よりなるプレポリマーあるいは、プロピレング
リコール３２％（重量）、エチレングリコール６％、フ
マール酸２７％、アジピン酸１４％、イソフタール酸１
３％を構成単位とする不飽和ポリエステルプレポリマー
を使用したとき、何れの場合も層間せん断力は低く、前
者は７．１ｋ９／Ｔｌｒｌｔｌ後者は６．４ｋ９／Ｔｎ
ｌＬ程度である。又、プリプレグ製造工程上及び製造さ
れたプリプレグの粘着性の点から樹脂組成物の８０℃に
おける粘度が３０〜２００ポイズとなるように不飽和ポ
リエステルプレポリマー及び架橋用モノマーの配合量を
調整するのがよい。このときの粘度が３０ポイズ以下で
は製造したプリプレグの粘着性が強すぎ使用上困難があ
る。又２００ポイズ以上では粘度が高すぎ樹脂の混練、
展延炭素繊維への含浸、炭素繊維の押し拡げができない
。硬化触媒は、ｔーブチルパーオキシベンゾエート、過
ラウリン酸−ｔ−ブチル、過クロトン酸一ｔ−ブチル等
の常温安定性に優れたしかも８０℃におけるゲルタイム
が２吟以上のものが適している。On the other hand, when the amount decreases to less than 10% (weight), the interlaminar shear force decreases. The amount of diallyl phthalate or diacetone acrylamide for crosslinking is preferably 10 to 50% (by weight), particularly preferably 15 to 35% (by weight). As structural units of the unsaturated polyester prepolymer, propylene glycol 18% (weight), diene [tylene glycol 27%]
%, a prepolymer consisting of 34% fumaric acid, 7% adipic acid, and 14% isophthalic acid, or 32% (by weight) propylene glycol, 6% ethylene glycol, 27% fumaric acid, 14% adipic acid, and 1 isophthalic acid.
When using an unsaturated polyester prepolymer containing 3% as a constituent unit, the interlaminar shear force was low in both cases: 7.1k9/Tlrltl for the former and 6.4k9/Tn for the latter.
It is about 1L. In addition, from the standpoint of the prepreg manufacturing process and the adhesiveness of the manufactured prepreg, the blending amounts of the unsaturated polyester prepolymer and the crosslinking monomer are adjusted so that the viscosity of the resin composition at 80°C is 30 to 200 poise. Good. If the viscosity at this time is less than 30 poise, the produced prepreg will be too sticky and difficult to use. Also, if the viscosity exceeds 200 poise, the viscosity will be too high and the kneading of the resin will be difficult.
It is not possible to impregnate spread carbon fibers or push and spread carbon fibers. Suitable curing catalysts are those that have excellent stability at room temperature and have a gel time of 2 min or more at 80 DEG C., such as t-butyl peroxybenzoate, t-butyl perlaurate, and t-butyl percrotonate.
本発明によると、従来溶剤法の問題点を解決し、しかも
、無方向性分繊マットの如き炭素繊維集合体を用いたプ
リプレグも利用することができる。According to the present invention, the problems of conventional solvent methods can be solved, and prepregs using carbon fiber aggregates such as non-directional fiber mats can also be used.
又、一方向プリプレグの場合にも適度の粘着性と含浸性
のためにたて割のないプリプレグとなる、場合によりガ
ラス繊維等の極薄の織物と積層したプリプレグとして応
用することもできる。実施例１イソフタール酸功部（モ
ル）、フマール酸６０部（モル）、プロピレングリコー
ル１００部（モル）を構成単位とするプレポリマー１０
ＣＨ，（重量）にジアリルフタレート四部を加え８０′
Ｃ二ーダーにて混練しさらにロールミル上に移し、ｔー
ブチルパーベンゾエート６部を加え更に混練する。In addition, even in the case of unidirectional prepreg, it becomes a prepreg with no vertical splits due to its appropriate adhesiveness and impregnability, and in some cases, it can also be applied as a prepreg laminated with an extremely thin fabric such as glass fiber. Example 1 Prepolymer 10 having constitutional units of isophthalic acid (mol), fumaric acid 60 parts (mol), and propylene glycol 100 parts (mol)
Add 4 parts of diallyl phthalate to CH, (weight) and add 80'
The mixture was kneaded in a C kneader, transferred to a roll mill, added with 6 parts of t-butyl perbenzoate, and further kneaded.
粘度は８０ポイズ（８０′Ｃ）であつた。この樹脂組成
物をフィルムコーターにて離型紙上に展延し、この上に
等間隔且つ平行に炭素繊維フィラメント（６０００４（
構成繊維束）を配列し、更にその上に離型紙を配し１２
０℃加熱された加熱板上にローラーで軽く押圧し３囲ノ
間通して樹脂の粘度を下げた後、１１０℃に加熱された
ブレスローラーにより４ｋ９／ＣＴｔの線圧でブレスし
シート状プリプレグを製造した。得られた一方向炭素繊
維プリプレグは、炭素繊維フィラメントが均一にかつ間
隙なく展開され樹脂が均一に含浸されたものであつた。
ゲルタイムは１００にＣ１２分であつた。このプリプレ
グを１５００Ｃ１１紛間７ｋ９／ｄの硬化条件て成形し
た成形物の物性は、曲げ強度１７２ｋ９／ｉ１曲げ弾性
率１２．８ｔ０ｎ／Ｔｌ７ｌｔｌ層間せん断強度９．４
ｋｇ／ｍｌであつた。The viscosity was 80 poise (80'C). This resin composition was spread on release paper using a film coater, and carbon fiber filaments (60004 (
12
After lowering the viscosity of the resin by lightly pressing it with a roller on a heated plate heated to 0°C for 3 cycles, it was pressed with a linear pressure of 4k9/CTt using a press roller heated to 110°C to form a sheet prepreg. Manufactured. The obtained unidirectional carbon fiber prepreg had carbon fiber filaments spread out uniformly and without gaps, and was uniformly impregnated with resin.
Gel time was 12 minutes at 100C. The physical properties of a molded product obtained by molding this prepreg under the curing conditions of 1500C11 powder and 7k9/d are as follows: bending strength: 172k9/i1 bending modulus: 12.8t0n/Tl: 7ltl interlaminar shear strength: 9.4
kg/ml.
（比較例）
実施例１で使用したプレポリマーａ部（重量）とイソフ
タール酸印部（モル）、フマール酸４０部（モル）、ジ
エチレングリコール１００部（モル）よりなるプレポリ
マー２喝（重量）、ジアリルフタレート（イ）部（重量
）ｔーブチルパーベンゾエート６部よりなる樹脂組成物
を使用し、実施例１と同様にして炭素繊維プリプレグを
製造した。(Comparative Example) Prepolymer 2 parts (weight) consisting of part a (weight) of the prepolymer used in Example 1, isophthalic acid part (mol), 40 parts (mol) of fumaric acid, and 100 parts (mol) of diethylene glycol, A carbon fiber prepreg was produced in the same manner as in Example 1 using a resin composition consisting of 6 parts of diallyl phthalate (a) parts (by weight) t-butyl perbenzoate.
このものを同様にして複合材料となし層間せん断強度を
測定したところ７．８ｋｇ／ＶｆＬであつた。When this material was made into a composite material in the same manner and the interlaminar shear strength was measured, it was 7.8 kg/VfL.
実施例２実施例１で用いた樹脂組成物を同法に準じて離
型紙上に展延し、この上に炭素繊維マットを配し、さら
にこの上に離型紙を置き、１２０℃に加熱された加熱板
上にローラーで軽く押圧し、樹脂粘度を低げ１２００Ｃ
に加熱されたブレスローラーで５ｋｇ／Ｃ７ｌの線圧で
ブレスして炭素繊維マットに樹脂を含浸させた。得られ
たプリプレグは、繊維間に均一に樹脂を含浸した炭素繊
維マットプリプレグであつた。Example 2 The resin composition used in Example 1 was spread on a release paper according to the same method, a carbon fiber mat was placed on top of this, a release paper was placed on top of this, and the resin composition was heated to 120°C. Press lightly with a roller onto a hot plate heated to 1200C to lower the resin viscosity.
The carbon fiber mat was impregnated with resin by pressing at a linear pressure of 5 kg/C7 liters using a press roller heated to 100 mL. The obtained prepreg was a carbon fiber mat prepreg in which the resin was uniformly impregnated between the fibers.
Claims (1)
フマール酸８０〜４０部（モル）、プロピレングリコー
ル１００部（モル）とからなる不飽和ポリエステルプレ
ポリマーとジアリルフタレート又はジアセトンアクリル
アミド１０〜５０％（重量）及び硬化触媒を含む不飽和
ポリエステル樹脂組成物をホットメルト法により炭素繊
維集合体に含浸させた不飽和ポリエステル樹脂をマトリ
ックスとする炭素繊維プリプレグ。 ２ 構成単位がイソフタール酸２０〜６０部（モル）、
フマール酸８０〜４０部（モル）、プロピレングリコー
ル１００部（モル）とからなる不飽和ポリエステルプレ
ポリマーとジアリルフタレート又はジアセトンアクリル
アミド１０〜５０％（重量）及び硬化触媒を含む不飽和
ポリエステル樹脂組成物を離型紙上に展延してフィルム
状となしこの上に炭素繊維集合体を配し４０〜１５０℃
で加熱圧縮して炭素繊維集合体に当該樹脂組成物を含浸
させることを特徴とする不飽和ポリエステルをマトリッ
クスとする炭素繊維プリプレグの製造方法。[Scope of Claims] 1 The structural unit is 20 to 60 parts (mol) of isophthalic acid,
An unsaturated polyester resin composition comprising an unsaturated polyester prepolymer consisting of 80 to 40 parts (mol) of fumaric acid and 100 parts (mol) of propylene glycol, 10 to 50% (by weight) of diallyl phthalate or diacetone acrylamide, and a curing catalyst. A carbon fiber prepreg whose matrix is an unsaturated polyester resin impregnated into a carbon fiber aggregate using the hot melt method. 2 The structural unit is 20 to 60 parts (mol) of isophthalic acid,
An unsaturated polyester resin composition comprising an unsaturated polyester prepolymer consisting of 80 to 40 parts (mol) of fumaric acid and 100 parts (mol) of propylene glycol, 10 to 50% (by weight) of diallyl phthalate or diacetone acrylamide, and a curing catalyst. Spread it on release paper to form a film, and place the carbon fiber aggregate on top of it at 40 to 150°C.
A method for producing a carbon fiber prepreg having an unsaturated polyester as a matrix, the method comprising heating and compressing the carbon fiber aggregate to impregnate the resin composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP960878A JPS6049211B2 (en) | 1978-01-31 | 1978-01-31 | Carbon fiber prepreg and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP960878A JPS6049211B2 (en) | 1978-01-31 | 1978-01-31 | Carbon fiber prepreg and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54102369A JPS54102369A (en) | 1979-08-11 |
| JPS6049211B2 true JPS6049211B2 (en) | 1985-10-31 |
Family
ID=11725004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP960878A Expired JPS6049211B2 (en) | 1978-01-31 | 1978-01-31 | Carbon fiber prepreg and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6049211B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5582112A (en) * | 1978-12-19 | 1980-06-20 | Toray Ind Inc | Resin composition for fiber-reinforcing |
-
1978
- 1978-01-31 JP JP960878A patent/JPS6049211B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54102369A (en) | 1979-08-11 |
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