JPS6129265B2 - - Google Patents
Info
- Publication number
- JPS6129265B2 JPS6129265B2 JP5782879A JP5782879A JPS6129265B2 JP S6129265 B2 JPS6129265 B2 JP S6129265B2 JP 5782879 A JP5782879 A JP 5782879A JP 5782879 A JP5782879 A JP 5782879A JP S6129265 B2 JPS6129265 B2 JP S6129265B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet material
- fiber
- resin
- sheet
- weight
- 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
- 239000000463 material Substances 0.000 claims description 109
- 229920005989 resin Polymers 0.000 claims description 32
- 239000011347 resin Substances 0.000 claims description 32
- 239000012783 reinforcing fiber Substances 0.000 claims description 21
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 16
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 9
- 239000004917 carbon fiber Substances 0.000 claims description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 229920001187 thermosetting polymer Polymers 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 5
- 239000011342 resin composition Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 description 18
- 238000000465 moulding Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 10
- 238000005452 bending Methods 0.000 description 7
- 239000002131 composite material Substances 0.000 description 6
- 239000003822 epoxy resin Substances 0.000 description 5
- 239000012778 molding material Substances 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 239000004641 Diallyl-phthalate Substances 0.000 description 3
- 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 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000012784 inorganic fiber Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000003677 Sheet moulding compound Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 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
- 238000013007 heat curing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012260 resinous material Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
Landscapes
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
本発明は熱及び圧力を加えることにより目的と
する形状の成形体を容易に作ることができ、その
強度に優れており、その重量も従来法に比べ軽減
し得ており、かつ仕上り外観が特に良好な成形体
を作り得る繊維強化複合シート材料に関するもの
である。[Detailed Description of the Invention] The present invention can easily produce a molded product in a desired shape by applying heat and pressure, has excellent strength, and can be reduced in weight compared to conventional methods. The present invention relates to a fiber-reinforced composite sheet material that can be used to produce a molded product with a particularly good finished appearance.
繊維強化複合シート材料よりなる成形材は、そ
の取扱い性が極めて優れている利点が認められ
種々の分野で広く利用されているが、このような
シート材料を用いて成形体を作るには、多くの場
合加圧，加熱法が利用される。このため、得られ
た成形品の表面に補強用繊維材料が滲出してくる
現象が認められ、その外観が悪いばかりでなく、
その取扱い性にも不都合を生ずるため、このよう
な成形品はその表面を更に研摩加工し、塗装仕上
げを施して利用に供されてきている。そこで、従
来よりこのような不都合のないシート状成形材料
の検討もなされてきている。例えば、複合材料中
の繊維対樹脂の混合比率を改良する方法、シート
材料の成形時に於ける流れ特性を改善するための
添加剤を加える方法、或いは成形時に起る成形物
の収縮により生ずる上記不都合を防止するための
添加剤を用いる方法である。このような方法によ
つて成形品の外観上の問題は可成りの満足度で改
良されFRP成形品として高い強度を要求されな
い分野に於ては十分に利用してゆけるのである
が、高い曲げ弾性や強度を要求される分野に於て
は、やはり成形品の強度が低下してくる点が大き
な問題となつてきた。 Molded materials made from fiber-reinforced composite sheet materials are widely used in a variety of fields due to their excellent handling properties, but there are many steps required to make molded products using such sheet materials. In this case, pressurization and heating methods are used. As a result, the reinforcing fiber material oozes out onto the surface of the molded product, which not only looks bad but also
Since this also causes problems in handling, the surface of such molded products has been further polished and finished with paint before being put to use. Therefore, sheet-shaped molding materials that do not have these disadvantages have been studied. For example, methods for improving the fiber-to-resin mixing ratio in composite materials, adding additives to improve the flow properties during molding of sheet materials, or solving the above-mentioned disadvantages caused by shrinkage of molded materials during molding. This method uses additives to prevent this. With this method, problems with the appearance of molded products can be solved to a high degree of satisfaction, and FRP molded products can be fully used in fields where high strength is not required, but high bending elasticity is In fields where molding and strength are required, a major problem has become that the strength of molded products decreases.
そこで、本発明者等は、上記目的を達成し得る
シート状成形材料を得ることを目的として検討し
た結果本発明を完成した。 Therefore, the present inventors completed the present invention as a result of studies aimed at obtaining a sheet-like molding material that can achieve the above-mentioned objects.
本発明の要旨とするところは補強用繊維30〜80
重量％及びマトリツクス樹脂20〜70重量％とより
なる樹脂組成物より作られたシート材Ａの片面若
しくは両面に、補強用繊維含有率が30重量％未満
の樹脂よりなるシート材であつて、シート材Ａの
厚みよりも薄い厚みであるシート材Ｂを密着一体
化せしめた繊維強化複合シート材料にある。 The gist of the present invention is that reinforcing fibers of 30 to 80
A sheet material made of a resin composition having a reinforcing fiber content of less than 30% by weight and a reinforcing fiber content of less than 30% by weight on one or both sides of a sheet material A made of a resin composition consisting of a matrix resin of 20 to 70% by weight, This is a fiber-reinforced composite sheet material in which sheet material B, which is thinner than material A, is closely integrated.
本発明の繊維強化複合シート材料は、補強用繊
維を一方向に引揃え、樹脂含浸した一方向プリプ
レグシート材、補強用繊維を織り、又は編み或い
は不織布状としたマツト状物に樹脂含浸し、シー
ト状材料としたシート状材料、或いは一方向引揃
えプリプレクシート材を短く裁断したものをラン
ダム方向に積層しシート状に成形したシートモー
ルデイング材などを含むものである。 The fiber-reinforced composite sheet material of the present invention is a unidirectional prepreg sheet material in which reinforcing fibers are aligned in one direction and impregnated with resin, or a mat-like material in which the reinforcing fibers are woven, knitted, or non-woven fabric is impregnated with resin, It includes a sheet material made into a sheet material, or a sheet molding material made by cutting short pieces of unidirectionally aligned pre-plex sheet material and laminating them in a random direction and forming them into a sheet shape.
本発明を実施するに際して用いる補強用繊維と
してはポリエステル繊維、ポリアミド繊維、ポリ
アミドイミド繊維などの有機繊維類又はガラス繊
維、鋼繊維、炭素繊維、シリコンカーバイド繊維
などの無機繊維類を挙げることができる。とくに
本発明のシート材料を成形することにより得られ
る成形体であつて、強度が高く、軽く、かつ外観
良好な成形体とする際には繊維補強材として炭素
繊維、黒鉛繊維を主体とする補強用繊維を用いる
のが好ましい。 Examples of reinforcing fibers used in carrying out the present invention include organic fibers such as polyester fibers, polyamide fibers, and polyamideimide fibers, and inorganic fibers such as glass fibers, steel fibers, carbon fibers, and silicon carbide fibers. In particular, when forming a molded article obtained by molding the sheet material of the present invention, which is high in strength, lightweight, and has a good appearance, reinforcement mainly made of carbon fiber or graphite fiber is used as a fiber reinforcing material. It is preferable to use commercially available fibers.
本発明を実施するに際し、シート材Ａ又はＢを
構成する樹脂成分としてはPPS，PBT，ポリアミ
ド，ポリエステルなどの熱可塑性樹脂、熱硬化性
樹脂を用い得るが、特に熱硬化性樹脂例えば不飽
和ポリエステル樹脂、ジアリルフタレート、エポ
キシ樹脂、フエノール樹脂、ポリイミド樹脂など
を挙げることができる。とくに本発明の複合シー
ト材料に於ては、半硬化状態を呈した樹脂状物で
あるときに、その取扱い性並びに成形特性が優れ
たものとなる。 In carrying out the present invention, thermoplastic resins and thermosetting resins such as PPS, PBT, polyamide, and polyester can be used as the resin component constituting the sheet material A or B, but in particular thermosetting resins such as unsaturated polyesters can be used. Examples include resins, diallyl phthalate, epoxy resins, phenolic resins, polyimide resins, and the like. In particular, when the composite sheet material of the present invention is a resinous material in a semi-cured state, its handling properties and molding properties are excellent.
本発明のシート材料は第１図に示す如く、繊維
補強シート材Ａに、このシート材Ａの厚みよりも
厚さの薄いシート材Ｂをシート材Ａの片面又は両
面に密接に接合せしめた複合シート材であり、こ
の形態は本発明のシート材料の成形直前に於ける
形態が上記条件を満足していれば足りるが、シー
ト材料の取扱い性、或いはその均一性などを考慮
すると予めシート材Ａとシート材Ｂとは一体化さ
れていることが好ましい。 The sheet material of the present invention is a composite material, as shown in FIG. It is a sheet material, and it is sufficient that the form of the sheet material of the present invention satisfies the above conditions immediately before molding. and sheet material B are preferably integrated.
シート材Ａは補強用繊維30〜80重量％とマトリ
ツクスとなる樹脂70〜20重量％よりなる樹脂組成
物より成立つている。補強用繊維の量が30重量％
未満のものでは、このようなシート材料を成形し
て得た成形体の強度を十分なものとすることが難
しく、一方補強用繊維が多量に含まれたシート材
料はその成形性が不足する傾向が強くなる。しか
し、シート材Ａの中の補強用繊維の含有量が高い
程性能の優れた成形品が得られるのであり、本発
明においては得られる成形体の諸性能及びシート
材料の成形性などを考慮する際には補強用繊維の
含量が特に50〜80重量％のシート材Ａを用いるの
がよい。また補強用繊維の形態としてはマツト状
の補強用繊維を用いた場合に均一な特性を有する
成形物が得られる。 Sheet material A is made of a resin composition consisting of 30 to 80% by weight of reinforcing fibers and 70 to 20% by weight of resin serving as a matrix. The amount of reinforcing fiber is 30% by weight
If the sheet material is less than becomes stronger. However, the higher the content of reinforcing fibers in the sheet material A, the better the performance of the molded product can be obtained, and in the present invention, various performances of the resulting molded product and moldability of the sheet material are taken into consideration. In particular, it is preferable to use sheet material A having a reinforcing fiber content of 50 to 80% by weight. Furthermore, when reinforcing fibers are used in the form of pine, a molded product having uniform properties can be obtained.
シート材料Ｂは補強用繊維含有率30重量％以下
なる樹脂組成物より形成されたものであることが
必要である。シート材Ｂ中に含まれる補強用繊維
の量が30重量％を越えて多くなると当該シート材
の成形時に於ける流動性が低下し、外観の良好な
成形体を作ることができなくなる。また、シート
材Ｂ中に含ませる繊維補強材の形態は短繊維状
物、ストランド状物等種々の形態のものを用い得
る。 The sheet material B must be formed from a resin composition having a reinforcing fiber content of 30% by weight or less. If the amount of reinforcing fibers contained in the sheet material B exceeds 30% by weight, the fluidity during molding of the sheet material decreases, making it impossible to produce a molded product with a good appearance. Furthermore, the fiber reinforcing material contained in the sheet material B can be in various forms such as short fibers and strands.
シート材Ｂの厚みはシート材Ａの厚みよりも厚
くなつてはならない。シート材Ｂの厚みがシート
材Ａの厚みよりも厚い場合には、当該複合シート
の成形時に於いて当該層の樹脂の流動性が過大と
なり、均一な形状及び特性を有する成形体を作る
ことが難しく、また得られる成形体の外観も低下
するようになるので好ましくない。 The thickness of sheet material B must not be thicker than the thickness of sheet material A. If the thickness of sheet material B is thicker than the thickness of sheet material A, the fluidity of the resin in the layer will be excessive during molding of the composite sheet, making it impossible to produce a molded product with uniform shape and properties. This is not preferable because it is difficult and the appearance of the obtained molded product also deteriorates.
シート材Ａの少なくとも片面にシート材Ｂを密
着せしめておくことが必要であるが、シート材Ｂ
はシート材Ａの両側に密着せしめた場合、その取
扱い性を更に良好とすることができると共に本発
明のシート材料を用い、加圧加熱成形法にて作成
した成形品の仕上り外観を良好にすることができ
る。 Although it is necessary to keep sheet material B in close contact with at least one side of sheet material A, sheet material B
When the sheet material A is brought into close contact with both sides of the sheet material A, its handling properties can be further improved, and the finished appearance of molded products made by the pressure and heat molding method using the sheet material of the present invention can be improved. be able to.
またシート材Ｂは樹脂成分、とくに半硬化状態
の熱硬化性樹脂が70重量％以上のフイルム状又は
シート状物で構成されていることが必要である。
樹脂成分が70重量％未満のシート状物を用いる際
には繊維強化複合シート材料の加圧加熱硬化法に
より成形材料の成形時に於ける成形材料表面層の
樹脂成分の流れ特性が低下し、樹脂の流れが不均
一になると共に仕上り外観が良好で、均一な特性
を有する成形品を作り得なくなるので好ましくな
い。 Further, the sheet material B must be composed of a film or sheet material containing 70% by weight or more of a resin component, particularly a thermosetting resin in a semi-cured state.
When using a sheet material with a resin component of less than 70% by weight, the flow characteristics of the resin component in the surface layer of the molding material during molding of the molding material will deteriorate due to the pressure and heat curing method of the fiber reinforced composite sheet material. This is undesirable because the flow of the resin becomes uneven and it becomes impossible to produce a molded product with a good finished appearance and uniform properties.
シート材Ｂ中に30重量％以下なる割合で繊維補
強材を充填したものは、本発明のシート材料の成
形時に於ける樹脂の流れ特性は良好となり、均一
で表面状態の良好な成形品とすることができると
共に、更に成形品の強度を高めることができるよ
うになる。シート材Ｂに混入せしめる補強繊維は
シート材Ａを作成した際に用いた有機、無機繊維
を同様に用いることができ、また、その形態は短
繊維状、マツト状、引揃えシート状のもののいず
れをも用いることができる。 When the sheet material B is filled with fiber reinforcing material at a ratio of 30% by weight or less, the flow characteristics of the resin during molding of the sheet material of the present invention are good, resulting in a molded product with a uniform and good surface condition. This makes it possible to further increase the strength of the molded product. The reinforcing fibers to be mixed into the sheet material B can be the same organic or inorganic fibers used when creating the sheet material A, and the reinforcing fibers can be in the form of short fibers, mats, or aligned sheets. can also be used.
本発明の繊維強化複合シート材料は、シート材
Ａ及びシート材Ｂを別々に調製し、これらのシー
ト材をシート材Ａの片面又は両面に重ね、シート
モールデイングコンパウンド製造機により、この
重ね合せたシート材の両側より圧着することによ
つて作り得るが、シート材Ａ及びＢを製造しなが
ら両者の接合をも実施する方法なども取り得る。 The fiber-reinforced composite sheet material of the present invention is produced by separately preparing sheet material A and sheet material B, stacking these sheet materials on one or both sides of sheet material A, and using a sheet molding compound manufacturing machine to produce the superposed sheet material. It can be made by crimping the sheet materials from both sides, but it is also possible to join the sheet materials A and B while manufacturing them.
本発明の繊維強化複合材シート材料は従来開発
されてきた同種のシート材料に比べ、その成形性
が良好であり、得られる成形品表面に於ける補強
用繊維の突出による外観の低下やその物理的特性
の低下がない。とくに補強用繊維として炭素繊維
を用いた場合にはその得られる効果は大きいもの
である。 The fiber-reinforced composite sheet material of the present invention has better moldability than conventionally developed sheet materials of the same type, and the resulting molded product has poor appearance due to protrusion of reinforcing fibers and its physical properties. There is no deterioration in physical characteristics. In particular, when carbon fiber is used as the reinforcing fiber, the effect obtained is great.
以下実施例により本発明を更に詳細に説明す
る。 The present invention will be explained in more detail with reference to Examples below.
実施例 １
炭素繊維一方向引揃えシートにエポキシ樹脂を
含浸し、ダイにてその厚みを調整し、加熱するこ
とによつて半硬化状態の熱硬化性樹脂を37.5重量
％を含むプリプレグシートを作成した。このプリ
プレグシートを巾５mm、長さ６mmの矩形状の細片
に切断したものを無秩序に積層し、プレス処理す
ることによつて樹脂含有率37.5重量％、厚さ0.16
mmのシート材Ａを作成した。Example 1 A prepreg sheet containing 37.5% by weight of thermosetting resin in a semi-cured state was created by impregnating a carbon fiber unidirectionally aligned sheet with epoxy resin, adjusting its thickness with a die, and heating it. did. This prepreg sheet was cut into rectangular strips with a width of 5 mm and a length of 6 mm, which were randomly laminated and pressed, resulting in a resin content of 37.5% by weight and a thickness of 0.16 mm.
A sheet material A of mm was created.
一方、シート材Ａの作成に際し使用したエポキ
シ樹脂を離型テープ上でシート化すると共に熱処
理し、半硬化状熱硬化性樹脂よりなる厚さ0.03mm
のシート材Ｂを作成した。 On the other hand, the epoxy resin used to create sheet material A was made into a sheet on a release tape and heat-treated to form a semi-cured thermosetting resin with a thickness of 0.03 mm.
Sheet material B was created.
シート材Ｂの上にシート材Ａを重ね、更にこの
上にシート材Ｂを重ねニツプローラーで圧着する
ことによつて本発明の繊維強化複合シート材料
〔〕を作成し、これを金型に充填し130℃で70
Kg/cm2の圧力下に１時間保持し成形体を作成し
た。得られた成形体の表面は平滑であつた。この
成形体より厚さ２mm、巾10mm、長さ100mmの試験
片を５ケ切出し、東洋ボールドウイン社製テンシ
ロンUTM―型を用いてスパン80mm、クロスヘ
ツド速度２mm／分で曲げ試験を行つた結果、平均
の曲げ弾性率2.5t/mm2，曲げ強度20Kg/mm2と良好な
特性を有する成形品を作ることができた。 The fiber-reinforced composite sheet material of the present invention [ ] is created by layering sheet material A on sheet material B, and then layering sheet material B on top of this and pressing it with a nip roller, and filling this into a mold. 70 at 130℃
A molded article was prepared by holding the mixture under a pressure of Kg/cm 2 for 1 hour. The surface of the obtained molded product was smooth. Five test pieces with a thickness of 2 mm, a width of 10 mm, and a length of 100 mm were cut out from this molded body, and a bending test was performed using a Tensilon UTM mold manufactured by Toyo Baldwin Co., Ltd. at a span of 80 mm and a crosshead speed of 2 mm/min. We were able to produce a molded product with good properties, with an average bending modulus of 2.5t/mm 2 and bending strength of 20Kg/mm 2 .
一方、シート材Ａのみを用いて上記方法と同様
にして成形体を作成したところ、成形体の表面に
は空隙が数多く発生し、外観は不良で、性能にも
バラツキが生じた。 On the other hand, when a molded body was produced in the same manner as above using only sheet material A, many voids were generated on the surface of the molded body, the appearance was poor, and the performance also varied.
また、シート材Ａとシート材Ｂの代りに同種の
材料よりなり厚さのみ0.17mmとしたシート材を用
いる他は、上記本発明と同様にして複合繊維シー
ト材料Ｃを作成し、上述した方法と同様にして成
形体を作成したところ、成形中に成形体の表面流
動が起り、良好な外観を有する成形品とすること
ができず、また補強繊維シートＡ層中にも乱れが
生じ、均一な特性を有する製品とするには多くの
困難を要した。 Further, a composite fiber sheet material C was prepared in the same manner as in the present invention, except that sheet materials made of the same type of material and having a thickness of 0.17 mm were used in place of sheet material A and sheet material B, and the composite fiber sheet material C was prepared using the method described above. When a molded product was prepared in the same manner as above, surface flow of the molded product occurred during molding, making it impossible to obtain a molded product with a good appearance. Also, turbulence occurred in the reinforcing fiber sheet A layer, making it difficult to maintain uniformity. Many difficulties were encountered in creating a product with such characteristics.
また、本発明の上記繊維強化複合シート材料
〔〕を、深さ20mm、広さ100mm角の蓋のない箱状
成形体製造用金型に入れ、上記と同一の条件にて
成形を行つたところ、表面平滑性に富み、適切な
剛性を備えた成形品が得られていることを認め
た。 In addition, the above-mentioned fiber reinforced composite sheet material of the present invention [] was placed in a mold for producing a box-shaped molded article with a depth of 20 mm and a width of 100 mm without a lid, and molding was performed under the same conditions as above. It was confirmed that a molded product with excellent surface smoothness and appropriate rigidity was obtained.
実施例 ２
実施例１に於て、シート材Ｂを作成するに際
し、炭素繊維短繊維を樹脂に対し10重量％混入せ
しめてシート化し、0.035mmのシート材を作り、
このシート材を実施例１のシート材Ｂに代えて用
いる他は全く同様の方法により繊維強化複合材シ
ート材料〔〕を作成した。このシート材料
〔〕を実施例１と同様にして成形したところ、
その成形性は良好であり、表面平滑性、剛性に優
れた成形体を作ることができた。Example 2 In Example 1, when creating sheet material B, 10% by weight of carbon fiber short fibers were mixed into the resin and formed into a sheet to make a 0.035 mm sheet material.
A fiber-reinforced composite sheet material [] was produced in exactly the same manner except that this sheet material was used in place of sheet material B of Example 1. When this sheet material [] was molded in the same manner as in Example 1,
The moldability was good, and a molded article with excellent surface smoothness and rigidity could be produced.
実施例 ３
実施例１に於て、シート材Ａを作成するに際
し、炭素繊維引揃えシートの代りにガラス繊維ス
トランド（旭フアイバーグラス社製、グラスロン
R730）を用いて、樹脂含有率35重量％のプリプ
レグシートを作り、このプリプレグシートを用い
てシート材を作成し、このものをシート材Ａに代
えて用いる他は全く同様の方法により繊維強化複
合材シート材料〔〕を作り、実施例１と同様に
して成形することによつて得られた成形体は曲げ
弾性率1.3t/mm2であり、その表面は平滑なもので
あつた。Example 3 In Example 1, when creating sheet material A, glass fiber strands (manufactured by Asahi Fiber Glass Co., Ltd., Glasslon) were used instead of the carbon fiber aligned sheet.
R730) to make a prepreg sheet with a resin content of 35% by weight, and use this prepreg sheet to make a sheet material, and use the same method in place of sheet material A. A molded product obtained by preparing a sheet material [] and molding it in the same manner as in Example 1 had a flexural modulus of elasticity of 1.3 t/mm 2 and a smooth surface.
実施例 ４
エポキシ樹脂に３重量％のBF3―MEAを混入
したものをシリコン樹脂を塗布した離形紙上に流
延しながらシートを形成し、この上に25mm長炭素
繊維と同長のガラス繊維を２対１の重量割合で分
散せしめたものを加え、この上にさらに離形紙を
あてたものを対になつたローラ群にくり返し数回
はさんで移動せしめることにより最終的に厚さ
1.2mm、樹脂含有率45重量％のシート材Ａを作成
した。Example 4 An epoxy resin mixed with 3% by weight of BF 3 -MEA was cast onto release paper coated with silicone resin to form a sheet, and on top of this was a 25 mm long carbon fiber and a glass fiber of the same length. A material dispersed in a weight ratio of 2:1 is added, and a release paper is placed on top of this, and the material is repeatedly moved between a pair of rollers several times to achieve the final thickness.
A sheet material A having a diameter of 1.2 mm and a resin content of 45% by weight was prepared.
別に上記硬化促進剤を含むエポキシ樹脂からな
る厚さ0.05mmのシート材Ｂを準備し、シート材Ａ
及びＢを用い実施例１と同様にして繊維強化複合
シート材料〔〕を作成した。 Separately, prepare sheet material B with a thickness of 0.05 mm made of epoxy resin containing the above-mentioned curing accelerator, and
A fiber-reinforced composite sheet material [] was prepared in the same manner as in Example 1 using and B.
この繊維強化複合シート材料〔〕を加熱温度
として170℃を用いる他は実施例１と同様に成形
したところ、表面の平滑な成形体を得た。 This fiber-reinforced composite sheet material [] was molded in the same manner as in Example 1, except that the heating temperature was 170°C, to obtain a molded product with a smooth surface.
一方、上記方法に於て、シート材Ａの代りに繊
維含有率85重量％としたシート材を用いる他は上
記方法と同様にして繊維強化複合材シートを作成
し、上記方法と同様にして成形体を作成したとこ
ろ、成形体の表面には凹凸が認められ、成形品の
外観が著しく損われたものしか作ることができな
かつた。 On the other hand, in the above method, a fiber reinforced composite sheet was prepared in the same manner as above except that a sheet material with a fiber content of 85% by weight was used instead of sheet material A, and molded in the same manner as in the above method. When a molded product was produced, unevenness was observed on the surface of the molded product, and the appearance of the molded product was significantly impaired.
実施例 ５
ジアリルフタレートプレポリマー（軟化点80
℃、ヨウ素価60）75部に対しジアリルフタレート
モノマー25部、ターシヤリブチルパーベンゾエー
ト1.5部、離形剤１部を混合したものを樹脂とし
て用いた。同樹脂を33％含浸し巾10mmに拡げた炭
素繊維10000フイラメントトウを25mm長に切断
し、平面ランダムに配向させた後圧着し、0.2mm
のシートとした。次いで上下より上記樹脂の離形
紙上に広げた厚み0.1mmの上記樹脂のフイルムで
はさみ、ゴムローラで加圧することにより繊維強
化複合シート材料〔〕を得た。Example 5 Diallyl phthalate prepolymer (softening point 80
A mixture of 75 parts of diallyl phthalate monomer, 1.5 parts of tertiary butyl perbenzoate, and 1 part of a mold release agent was used as the resin. Carbon fiber 10,000 filament tow impregnated with 33% of the same resin and spread to a width of 10 mm was cut into 25 mm lengths, oriented randomly on a plane, and then crimped to 0.2 mm.
It was made into a sheet. Next, it was sandwiched from above and below between films of the above resin with a thickness of 0.1 mm spread on release paper made of the above resin, and pressed with a rubber roller to obtain a fiber-reinforced composite sheet material.
該シートを金型に充填して150℃に加熱し70Kg/
cm2の圧力下で10分保持した。得られた成形体の面
は平滑であり、２mm厚の成形体から巾10mm、長さ
100mmの試験片をとり、実施例１と同様にして曲
げ試験に供したところ平均値として曲げ弾性率２
ton/mm2、曲げ強度20Kg/mm2の結果を得た。 Fill the sheet into a mold and heat it to 150℃ to produce 70Kg/
Hold for 10 minutes under a pressure of cm 2 . The surface of the obtained compact was smooth, and the width was 10 mm and the length was 2 mm.
A 100 mm test piece was taken and subjected to a bending test in the same manner as in Example 1, and the average bending modulus was 2.
ton/mm 2 and bending strength of 20Kg/mm 2 .
第１図は本発明の繊維強化複合シート材料の斜
視図を示したものである。
Ａ：繊維含有率30〜80重量％のシート材Ａ、
Ｂ：樹脂含有率70重量％以上のシート材Ｂ。
FIG. 1 shows a perspective view of the fiber-reinforced composite sheet material of the present invention. A: Sheet material A with a fiber content of 30 to 80% by weight,
B: Sheet material B with a resin content of 70% by weight or more.
Claims (1)
70〜20重量％よりなる樹脂組成物より作られたシ
ート材Ａの片面若しくは両面に、マトリツクス樹
脂70重量％以上よりなるシート材であつて、シー
ト材Ａよりも薄い厚さのシート材Ｂを密着一体化
せしめた繊維強化複合シート材料。 ２ マトリツクス樹脂として熱硬化性樹脂を用い
たことを特徴とする特許請求の範囲第１項記載の
シート材料。 ３ シート材Ａ及びシート材Ｂ中の熱硬化性樹脂
が半硬化した樹脂状物で構成されたものであるこ
とを特徴とする特許請求の範囲第２項記載のシー
ト材料。 ４ 補強用繊維として炭素繊維を用いたことを特
徴とする特許請求の範囲第１項，第２項又は第３
項記載のシート材料。[Claims] 1. 30 to 80% by weight of reinforcing fibers, matrix resin
Sheet material B, which is made of a matrix resin of 70% by weight or more and is thinner than sheet material A, is placed on one or both sides of sheet material A made of a resin composition of 70 to 20% by weight. A fiber-reinforced composite sheet material that is tightly integrated. 2. The sheet material according to claim 1, characterized in that a thermosetting resin is used as the matrix resin. 3. The sheet material according to claim 2, wherein the thermosetting resin in sheet material A and sheet material B is composed of a semi-cured resin-like material. 4 Claims 1, 2, or 3 characterized in that carbon fiber is used as the reinforcing fiber.
Sheet materials listed in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5782879A JPS55150361A (en) | 1979-05-11 | 1979-05-11 | Fiber reinforcing compound sheet material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5782879A JPS55150361A (en) | 1979-05-11 | 1979-05-11 | Fiber reinforcing compound sheet material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55150361A JPS55150361A (en) | 1980-11-22 |
| JPS6129265B2 true JPS6129265B2 (en) | 1986-07-05 |
Family
ID=13066783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5782879A Granted JPS55150361A (en) | 1979-05-11 | 1979-05-11 | Fiber reinforcing compound sheet material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55150361A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59101359A (en) * | 1982-12-02 | 1984-06-11 | 日本発条株式会社 | Fiber reinforced plastic board and its manufacture |
| JPS612554A (en) * | 1983-12-12 | 1986-01-08 | イビデン株式会社 | Decorative member and manufacture thereof |
-
1979
- 1979-05-11 JP JP5782879A patent/JPS55150361A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55150361A (en) | 1980-11-22 |
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