JPH04179521A - Manufacture of composite molded form - Google Patents
Manufacture of composite molded formInfo
- Publication number
- JPH04179521A JPH04179521A JP2307216A JP30721690A JPH04179521A JP H04179521 A JPH04179521 A JP H04179521A JP 2307216 A JP2307216 A JP 2307216A JP 30721690 A JP30721690 A JP 30721690A JP H04179521 A JPH04179521 A JP H04179521A
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- fiber
- foamable
- mold
- reinforced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- 239000002131 composite material Substances 0.000 title claims description 4
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 38
- 238000000465 moulding Methods 0.000 claims abstract description 29
- 238000005187 foaming Methods 0.000 claims abstract description 16
- 238000010030 laminating Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 25
- 239000000463 material Substances 0.000 abstract description 14
- 229920005989 resin Polymers 0.000 description 48
- 239000011347 resin Substances 0.000 description 48
- 239000004743 Polypropylene Substances 0.000 description 9
- -1 polypropylene Polymers 0.000 description 9
- 229920001155 polypropylene Polymers 0.000 description 9
- 239000004744 fabric Substances 0.000 description 8
- 239000000835 fiber Substances 0.000 description 8
- 238000003825 pressing Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 229920000049 Carbon (fiber) Polymers 0.000 description 5
- 239000004917 carbon fiber Substances 0.000 description 5
- 239000003365 glass fiber Substances 0.000 description 5
- 229920000515 polycarbonate Polymers 0.000 description 5
- 239000004417 polycarbonate Substances 0.000 description 5
- 239000012783 reinforcing fiber Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
- 229920000098 polyolefin Polymers 0.000 description 4
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 3
- 239000004088 foaming agent Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229920006122 polyamide resin Polymers 0.000 description 2
- 229920005668 polycarbonate resin Polymers 0.000 description 2
- 239000004431 polycarbonate resin Substances 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- 239000004156 Azodicarbonamide Substances 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 1
- 235000019399 azodicarbonamide Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野コ 本発明は、自動車、建造物、航空宇宙用材料。[Detailed description of the invention] [Industrial application fields] The present invention relates to materials for automobiles, buildings, and aerospace.
スポーツ用品、その他の分野で用いられる、″ヒケ”の
ない繊維補強熱可塑性樹脂複合成形品の製造方法に関す
る。This invention relates to a method for manufacturing fiber-reinforced thermoplastic resin composite molded products that are free from sink marks and are used in sporting goods and other fields.
［従来の技術］
従来、多孔質コア層を有するサンドイツチ材は発泡成形
したコアと繊維補強プラスチック（以下ＦＲＰと略称）
を接着する方法で製造されている。[Conventional technology] Conventionally, Sanderutsch materials with a porous core layer are made of a foam-molded core and fiber reinforced plastic (hereinafter abbreviated as FRP).
Manufactured by gluing.
その後、発泡成形したコアの表面にＦＲＰ等の表皮を成
形する方法、予め外殻のＦＲＰ等の表皮を成形してこの
中に発泡性の樹脂を注入する方法、補強繊維を金型に添
わせ、発泡性樹脂を注入して表皮ＦＲＰとを同時に成形
する方法等が提案されている。これらは、通常、熱硬化
性の樹脂を用いて行われるため高速成形には向いていな
いばかりでなく、工程が複雑で生産性に劣るという問題
がある。After that, there are two methods: molding a skin such as FRP on the surface of the foam-molded core, molding a skin such as FRP for the outer shell in advance and injecting foamable resin into it, and adding reinforcing fibers to the mold. , a method of injecting foamable resin and molding the skin FRP at the same time has been proposed. Since these are usually carried out using thermosetting resin, they are not only unsuitable for high-speed molding, but also have the problem that the process is complicated and productivity is poor.
他方、スタンピング成形と総称される成形方法があり、
この方法は熱可塑性樹脂シートを流動点付近まで昇温し
、プレス成形する方法であるが、発泡成形物を得る方法
としては認識されておらず、また、−船釣に、樹脂の流
動性、成形時の樹脂収縮（所謂“′ヒケ”）の問題等が
あり、成形仕上がりに難点が生じ易い。On the other hand, there is a molding method collectively called stamping molding.
This method involves raising the temperature of a thermoplastic resin sheet to near its pour point and press-molding it, but it is not recognized as a method for obtaining foam molded products. There are problems with resin shrinkage (so-called "sink marks") during molding, which tends to cause problems in the finished molding.
［発明が解決しようとする課題］
本発明において解決しようとする課題は、安価に、高速
でサンドイツチ材を提供したり、スタンピング成形の“
ヒゲ”の問題を解決することができる共通の手段を提供
することである。[Problems to be Solved by the Invention] The problems to be solved by the present invention are to provide sandwiched cheese material at low cost and at high speed, and to improve stamping molding.
The goal is to provide a common means that can solve the problem of "beards."
［課題を解決するための手段］
本発明者らは、上述の課題を解決すべく鋭意研究の結果
、発泡性のシート例えば発泡性のポリオレフィンシート
、ポリカーボネートのシート等を利用することを考え、
本発明に到達した。本発明によれば、発泡性の熱可塑性
樹脂シートと非発泡性の繊維補強熱可塑性樹脂のシート
とを積層して金型に収め、加圧・加熱し、又は非発泡性
の繊維補強熱可塑性樹脂のシートを加熱溶融して金型に
収め金型内で同様に溶融して発泡している熱可塑性樹脂
と積層成形する方法が提供される。[Means for Solving the Problems] As a result of intensive research in order to solve the above-mentioned problems, the present inventors have considered the use of foamable sheets such as foamable polyolefin sheets, polycarbonate sheets, etc.
We have arrived at the present invention. According to the present invention, a foamable thermoplastic resin sheet and a non-foamable fiber-reinforced thermoplastic resin sheet are laminated, placed in a mold, pressurized and heated, or non-foamable fiber-reinforced thermoplastic A method is provided in which a sheet of resin is heated and melted, placed in a mold, and laminated with a thermoplastic resin that is similarly melted and foamed within the mold.
すなわち、本発明の方法は、繊維補強熱可塑性樹脂シー
トと発泡性熱可塑性樹脂シートを積層してスタンピング
成形することを特徴とする複合成形品の製造方法である
。That is, the method of the present invention is a method for producing a composite molded article, which is characterized in that a fiber-reinforced thermoplastic resin sheet and a foamable thermoplastic resin sheet are laminated and stamp-molded.
本発明方法において、発泡性樹脂シートは市販のものを
用いることも可能であるが、発泡剤や発泡性粒子を含有
する熱可塑性樹脂をシート化したものや、シート化され
た樹脂に発泡剤を加えたものを用いる方法もある。熱可
塑性樹脂の素材は特に限定はなく、ポリ塩化ビニル、ポ
リオレフィン等の発泡性フィルムを前者の方法で、ポリ
カーボネート、ポリオレフィン等を後者の方法で得るこ
となどが考えられる。この他、ＡＢＳ樹脂、ボリエスル
樹脂、ポリアミド樹脂、その他液晶樹脂なども用いられ
る。゛この発泡性シートには必要に応じ安定剤１着色剤
、充填材などを含んでもよい。In the method of the present invention, it is possible to use a commercially available foamable resin sheet, but it is also possible to use a sheet of thermoplastic resin containing a foaming agent or foamable particles, or a sheet of resin containing a foaming agent. There is also a method of using something added. The material of the thermoplastic resin is not particularly limited, and it is conceivable to obtain a foamable film of polyvinyl chloride, polyolefin, etc. by the former method, and to obtain polycarbonate, polyolefin, etc. by the latter method. In addition, ABS resin, polyester resin, polyamide resin, and other liquid crystal resins can also be used. ``This foamable sheet may contain a stabilizer, a coloring agent, a filler, etc., if necessary.
一方、繊維補強樹脂シートのマトリックスとなる非発泡
性の熱可塑性樹脂としては、ポリオレフィン樹脂、ポリ
エステル樹脂、ポリアミド樹脂。On the other hand, non-foamable thermoplastic resins that form the matrix of fiber-reinforced resin sheets include polyolefin resins, polyester resins, and polyamide resins.
ポリ塩化ビニル樹脂、ポリカーボネート樹脂等の汎用の
熱可塑性樹脂が好ましい。ＰＥＥＫ、ＰＥＫ、ＰＳ、ボ
リアリレート等、最近「高性能樹脂」と称されるものも
用いられる。なお、発泡シートと非発泡シートが同一の
素材ないしは回続の素材であることが好ましいが、本発
明ではこれに限定されない。このような場合には組み合
わせに好ましいものがあり、例えばＡＢＳ樹脂や発泡性
シートとポリカーボネート非発泡シートの組み合わせが
好ましいものとして挙げられる。General-purpose thermoplastic resins such as polyvinyl chloride resin and polycarbonate resin are preferred. What are recently called "high performance resins" such as PEEK, PEK, PS, and polyarylate are also used. Although it is preferable that the foamed sheet and the non-foamed sheet are made of the same material or a recycled material, the present invention is not limited thereto. In such a case, there are some preferred combinations, such as combinations of ABS resin or foamed sheets and polycarbonate non-foamed sheets.
繊維補強熱可塑性樹脂シートの補強繊維は、ガラス繊維
、炭素繊維等の無機繊維、アラミド繊維。The reinforcing fibers of fiber-reinforced thermoplastic resin sheets are inorganic fibers such as glass fibers and carbon fibers, and aramid fibers.
ポリエステル繊維、ポリオレフィン繊維等の有機工業用
繊維が用いられ、特にガラス繊維が好ましい。高級品に
は炭素繊維等を用いられる。繊維は、ウェブ、不織布、
織物もしくは編み物などの形態で用い、通常はｉｌｉ物
が用いられる。Organic industrial fibers such as polyester fibers and polyolefin fibers are used, and glass fibers are particularly preferred. Carbon fiber etc. are used for high-end products. Fibers include webs, non-woven fabrics,
It is used in the form of woven or knitted fabrics, and iris are usually used.
本発明方法では、繊維補強熱可塑性樹脂シート−として
、そのマトリックスになる熱可塑性樹脂の繊維と補強用
繊維との交織物、例えばＰＥＥＫ繊維と炭素繊維との交
織物を用いることもできる。In the method of the present invention, as the fiber-reinforced thermoplastic resin sheet, a mixed fabric of thermoplastic resin fibers serving as a matrix and reinforcing fibers, such as a mixed fabric of PEEK fibers and carbon fibers, can also be used.
これは、予熱又はスタンピング（プレス）成形時の昇温
により、熱可塑性樹脂繊維が溶融して繊維補強熱可塑性
樹脂シートとなるので、本発明方法で使用可能である。This can be used in the method of the present invention because the thermoplastic resin fibers are melted by the temperature increase during preheating or stamping (press) molding to form a fiber-reinforced thermoplastic resin sheet.
本発明方法において、発泡性の熱可塑性樹脂シートを非
発泡性の繊維補強熱可塑性樹脂シートで覆い、これを金
型にいれて前者を発泡させ、後者と一体化させればサン
ドイツチ材となり、この際の発泡量を抑えればパヒケ”
を防止した繊維補強樹脂成形品を得ることができる。本
発明者の検討結果に基づけば、この方法の一つの実施態
様として発泡性の熱可塑性樹脂シートを繊維補強シート
で挟み、これを予熱して、予め加熱しである金型でスタ
ンピング成形、つまり、高速プレス成形することができ
る。また、他の方法の一つとして、繊維補強熱可塑性樹
脂シート及び発泡性熱可塑性樹脂シートを予熱して積層
してスタンピング成形することがあげられる。この方法
では、繊維補強熱可塑性樹脂シートをその熱可塑性樹脂
の流動点以上の温度に、発泡性熱可塑性樹脂シートを発
泡温度以下の温度に予熱して積層してスタンピング成形
することが好ましい。更に具体的に例を述べれば、溶融
流動化した樹脂の繊維補強シートを２枚作り、この２枚
の間に発泡温度以下であるが僅かな温度上昇で発泡する
発泡性樹脂のシートを挟み、金型でプレスすれば実施で
きる。特に高速であることを望まなければ金型に収めて
から加熱溶融及び加熱発泡させればよいが、高速で成形
する場合には流動化した樹脂の繊維補強シートを比較的
低温（樹脂のＴｇ；ガラス転位点以下等）の金型でプレ
スする方法が好ましい。従って、この際に発泡性シート
の発泡がおきるように調整すればよいことになる。In the method of the present invention, a foamable thermoplastic resin sheet is covered with a non-foamable fiber-reinforced thermoplastic resin sheet, this is placed in a mold, the former is foamed, and the latter is integrated with the latter to form a sandwich material. If you reduce the amount of foaming during
It is possible to obtain a fiber-reinforced resin molded product that prevents this. Based on the study results of the present inventor, one embodiment of this method is to sandwich a foamable thermoplastic resin sheet between fiber-reinforced sheets, preheat it, and stamp-mold it in a preheated mold. , capable of high-speed press molding. Another method is to preheat a fiber-reinforced thermoplastic resin sheet and a foamable thermoplastic resin sheet, laminate them, and perform stamping molding. In this method, it is preferable to preheat the fiber-reinforced thermoplastic resin sheet to a temperature above the pouring point of the thermoplastic resin and the foamable thermoplastic resin sheet to a temperature below the foaming temperature, and then stack them and stamp mold them. To give a more specific example, two fiber-reinforced sheets of melted and fluidized resin are made, and a sheet of foamable resin that is below the foaming temperature but foams with a slight temperature rise is sandwiched between the two sheets. This can be done by pressing with a mold. If high speed is not desired, heat melting and foaming can be carried out after placing the mold in a mold, but when molding at high speed, the fiber reinforced sheet of fluidized resin is heated at a relatively low temperature (resin Tg; A method of pressing with a mold having a temperature of (below the glass transition point, etc.) is preferred. Therefore, it is only necessary to adjust the foaming sheet so that foaming occurs at this time.
本発明では、熱可塑性樹脂をスタンピング成形くプレス
成形）可能な粘度でかつ発泡させるのに適した粘度にす
るとともに、発泡剤を発泡させるに必要な温度に上げて
スタンピング（プレス）成形するが、この温度に上述し
た２種の素材（シート）を加熱するに際して、金型を通
して加熱し成形することもできるが、２種の素材を予熱
しておいて、これらを積層したときに発泡又は発泡温度
近傍まで昇温する方法が一層好ましい。特に多くのスタ
ンピング成形の場合のように、繊維補強樹脂シートをそ
のマトリックス樹脂の融点以上にまで昇温し、低温の金
型でスタンピング（プレス）成形することが、高速成形
においては特に好ましい。この場合には、例えば繊維補
強樹脂シートをそのマトリックス樹脂が溶融しても形を
保つことができるものとして、樹脂が溶融するところま
で加熱し、溶融発泡していない発泡性の樹脂シートと積
層して、低温の金型でスタンピング（プレス）する。よ
り具体的に説明すれば、例えばプレス機にセットした金
型の近くで２枚の繊維補強シートを融点以上まで昇温し
、一方、金型の近傍の他の位置で発泡性の樹脂シートを
発泡温度以下に加熱昇温し、また金型を樹脂の流動点く
又はＴｇニガラス転位点）以下に加熱し、上下の金型の
間で繊維補強樹脂シートと発泡性の樹脂シートとを間隔
をおいて層状に並べ、しかる後これらを密着積層すると
共に金型に挟んでスタンピング（プレス）成形する方法
が好ましく採用される。In the present invention, the thermoplastic resin is made to have a viscosity that allows stamping molding (press molding) and a viscosity suitable for foaming, and the temperature of the foaming agent is raised to a temperature necessary for foaming, and stamping (press molding) is performed. When heating the above-mentioned two types of materials (sheets) to this temperature, it is also possible to heat and mold them through a mold, but if the two types of materials are preheated and then laminated together, foaming or foaming temperature A method in which the temperature is raised to a temperature close to that level is more preferable. In particular, in high-speed molding, it is particularly preferable to heat the fiber-reinforced resin sheet to a temperature higher than the melting point of its matrix resin and stamp (press) mold it in a low-temperature mold, as is the case with many stamping moldings. In this case, for example, a fiber-reinforced resin sheet that can maintain its shape even if its matrix resin melts is heated to the point where the resin melts, and then laminated with a foamable resin sheet that has not been melted and foamed. stamping (pressing) using a low-temperature mold. More specifically, for example, two fiber-reinforced sheets are heated to above their melting point near a mold set in a press machine, while a foamable resin sheet is placed at another position near the mold. The temperature is raised to below the foaming temperature, and the mold is heated to below the resin's pour point (or Tg), and the fiber-reinforced resin sheet and the foamable resin sheet are spaced between the upper and lower molds. Preferably, a method is employed in which the materials are arranged in layers, and then these are closely laminated and sandwiched between molds for stamping (press) molding.
上述の繊維補強樹脂シートは必要に応じ複数枚を積層し
てもよい。発泡性樹脂シートとしても１枚のシートを用
いることでもよいが、複数のシートを重ねることもでき
、特にシート間に非発泡性樹脂シート（例えば熱可塑性
樹脂フィルム）を介在させることも好ましい。この際、
発泡性シート間に補強繊維・織物等を挟むことも好まし
い。この方法はコア部の補強にもなり得るので有用であ
る。A plurality of the above-mentioned fiber-reinforced resin sheets may be laminated as necessary. Although a single sheet may be used as the foamable resin sheet, a plurality of sheets may be stacked, and it is particularly preferable to interpose a non-foamable resin sheet (for example, a thermoplastic resin film) between the sheets. On this occasion,
It is also preferable to sandwich reinforcing fibers, fabrics, etc. between the foamable sheets. This method is useful because it can also strengthen the core.
本発明の実施に際して、発泡性の樹脂シート及び繊維補
強樹脂シートの柔軟性を利用して、平板ではなく曲げて
金型に収め、樹脂を流動させて成形することも材料の選
択次第で可能であり、更に他の補強材料と積層結合して
金型に収めることもまたバリエーションとして可能であ
る。When carrying out the present invention, it is also possible to take advantage of the flexibility of foamable resin sheets and fiber-reinforced resin sheets to bend the sheet into a mold instead of using a flat plate, and to mold the resin by flowing the resin, depending on the material selection. However, as a variation, it is also possible to stack and bond with other reinforcing materials and place it in a mold.
［発明の効果］
以上の如き本発明方法によれば、スタンピング成形時に
金型の間隔を拡げずに発泡量を抑えれば、″ヒケ”のな
い良好なスタンピング成形物が得られる。また、成形時
に金型の間隔を拡げて発泡を生じさせれば、サンドイツ
チ材を安価にかつ高速にて製造することができる。[Effects of the Invention] According to the method of the present invention as described above, if the amount of foaming is suppressed without increasing the gap between the molds during stamping molding, a good stamped molded product without "sink marks" can be obtained. Moreover, if foaming is caused by widening the interval between the molds during molding, Sanderutschich material can be manufactured at low cost and at high speed.
「実施例］
次に、本発明の実施例及び比較例を詳述するが、本発明
はこれにより限定されるものではない。なお、特に断り
のないかぎり各例中の「部」は重量部である。"Examples" Next, Examples and Comparative Examples of the present invention will be described in detail, but the present invention is not limited thereto.Unless otherwise specified, "parts" in each example refers to parts by weight. It is.
実施例１
ａ）発泡性樹脂シートの作成；
市販の発泡性ＡＢＳ性樹脂［ポリスレンＪ （共和化成
製）を入手した。これを１５０℃、 ２００ ｋｇ／−
で溶融製膜し、厚さ０．５ｎｗｎのシート状発泡性ＡＲ
３樹脂とした。Example 1 a) Preparation of foamable resin sheet; A commercially available foamable ABS resin [Polysrene J (manufactured by Kyowa Kasei) was obtained. This was heated to 150℃ and 200 kg/-
A sheet-like foamable AR with a thickness of 0.5nwn is melt-formed using
3 resins.
ｂ）繊維補強樹脂シートの作成；
ポリカーボネートシート（余人化成製）を入手した。厚
さＯｊｍｍであった。炭素繊維織物（東し製） Ｃ０６
３４３を入手しな。これらの炭素繊維織物とポリカーボ
ネートシートを積層し、２００ ｋｇ／ａＡ／ｄ、 ２
８０℃でプレスして繊維補強ポリカーボネート樹脂シー
トを得た。b) Preparation of fiber-reinforced resin sheet; A polycarbonate sheet (manufactured by Yojin Kasei) was obtained. The thickness was Ojmm. Carbon fiber fabric (manufactured by Toshi) C06
Get the 343. These carbon fiber fabrics and polycarbonate sheets are laminated to produce 200 kg/aA/d, 2
A fiber-reinforced polycarbonate resin sheet was obtained by pressing at 80°C.
Ｃ）繊維補強樹脂シート及び発泡性樹脂シートの予熱；
遠赤外線ヒーターを用いて上記ｂ）により得な２枚の繊
維補強シートをそれぞれ３６０℃まで昇温した。これと
同様にして上記ａ）の発泡性樹脂シートを１５０°Ｃま
で昇温しな。C) Preheating of the fiber-reinforced resin sheet and the foamable resin sheet; The two fiber-reinforced sheets obtained in b) above were each heated to 360° C. using a far-infrared heater. In the same manner, heat the foamable resin sheet of a) above to 150°C.
ｄ）スタンピング成形；
予めプレス機にセットした金型を８０°Ｃに予熱してお
いた。この金型を上下に開いておいて、予熱した繊維補
強樹脂シート２枚と発泡性樹脂シートを金型の間に素早
く引き込んだ。繊維補強樹脂シート／発泡性樹脂シート
／繊維補強シートの順に積層した。d) Stamping molding: A mold set in a press was preheated to 80°C. This mold was opened vertically, and two preheated fiber-reinforced resin sheets and a foamable resin sheet were quickly drawn between the molds. The fiber-reinforced resin sheet/foamable resin sheet/fiber-reinforced sheet were laminated in this order.
そのまま高速でプレスし、金型を閉じ、１分後に金型間
隔をｌｎｗｎに広げた。冷却しながら７分間保持し金型
温度的１００℃でプレス機から外し、再冷却して５０℃
まで金型を冷やして開いた。Pressing was continued at high speed, the mold was closed, and after 1 minute, the mold interval was widened to lnwn. Hold the mold for 7 minutes while cooling, remove from the press at a mold temperature of 100°C, and re-cool to 50°C.
Let the mold cool until opened.
得られたサンプルはサンドイツチ材になっており、その
曲げ試験結果は強度７．２ ｋｇ／ｍｍ２．弾性率４６
２ｋｇ／陶２であった。The obtained sample was made of Sandergerch wood, and the bending test results showed that the strength was 7.2 kg/mm2. Elastic modulus 46
It was 2 kg/2 ceramics.
実施例２及び比較例１
実施例１と全く同様にして繊維補強樹脂シート２枚と発
泡性樹脂シート１枚を得、同様な操作で予熱し、予熱し
である金型で同様な条件でプレスし、スタンピング成形
した。プレスした際、金型を開かなかったことを除いて
、操作は全く同様である。得られた成形物は、厚さ０．
８部ｗｎで、°′ヒケ°゛がなく、表面性が良好であっ
た。Example 2 and Comparative Example 1 Two fiber-reinforced resin sheets and one foamable resin sheet were obtained in exactly the same manner as in Example 1, preheated in the same manner, and pressed under the same conditions in a preheated mold. Then, it was stamped and molded. The operation was exactly the same except that the mold was not opened during pressing. The obtained molded product has a thickness of 0.
At 8 parts wn, there were no sink marks and the surface properties were good.
比較のため、発泡性樹脂シートを用いず、代わりに繊維
補強シートを３枚にして成形した。実施例１と同様にし
て作って３６０℃まで昇温しな３枚の繊維補強シートを
積層してプレスして得られたものは、周辺部く縁が曲げ
である〉の部分と、平面である中心部の一部に補強繊維
が浮きだしていた。実施例３
ポリプロピレン樹脂８０部、ポリブテン樹脂２０部。For comparison, three fiber-reinforced sheets were used instead of a foamable resin sheet. The product obtained by laminating and pressing three fiber-reinforced sheets made in the same manner as in Example 1 and heated to 360°C has a curved edge at the periphery and a flat surface. Reinforcing fibers were visible in a part of the center. Example 3 80 parts of polypropylene resin, 20 parts of polybutene resin.
トリアリルイソシアヌレート（架橋助剤）１部２アゾジ
カルボンアミド〈発泡剤）３部、ジクミルペルオキシド
（有機過酸化物）０．１部を十分に混合し、１７０℃で
フィルムを溶融製膜した。得られたフィルムは厚さ約１
００μｍであった。これを発泡性ポリプロピレンシート
とする。1 part of triallylisocyanurate (crosslinking aid), 3 parts of azodicarbonamide (blowing agent), and 0.1 part of dicumyl peroxide (organic peroxide) were thoroughly mixed, and a film was melt-formed at 170°C. . The resulting film has a thickness of approximately 1
It was 00 μm. This is used as a foamable polypropylene sheet.
ガラス繊維クロスＷＦ−１８１−１００ＢＶ （日東紡
製で綾織り）を準備した。厚さ１００μｍのポリプロピ
レンフィルム２枚の間にガラス繊維クロスを挟み、２６
０℃、 ２００ ｋｇ／−でプレスし、ガラス繊維補強
ポリプロピレンシートを得た。Glass fiber cloth WF-181-100BV (manufactured by Nittobo, twill weave) was prepared. A glass fiber cloth was sandwiched between two polypropylene films with a thickness of 100 μm, and
It was pressed at 0°C and 200 kg/- to obtain a glass fiber reinforced polypropylene sheet.
ガラス補強ポリプロピレンシート２枚を赤外線加熱で２
２０℃まで昇温し、発泡性ポリプロピレンシートを同様
に赤外線加熱で１７０℃まで昇温しな。Two glass-reinforced polypropylene sheets heated by infrared rays.
The temperature was raised to 20°C, and the foamable polypropylene sheet was similarly heated to 170°C using infrared heating.
この予熱したシートを繊維補強ポリプロピレンシート／
発泡性ポリプロピレンシート／繊維補強ポリプロピレン
シートの原に、予め６０℃に加熱しておいな金型に積層
、挿入してスタンピング成形した。金型閉鎖後、３０秒
経過後に金型間隔を１ｒｒｒｍに拡げた。金型のプレス
開閉は油圧プレスで実施した。This preheated sheet is made into a fiber-reinforced polypropylene sheet/
The original foamable polypropylene sheet/fiber-reinforced polypropylene sheet was laminated and inserted into a mold that had been heated to 60° C. for stamping molding. After 30 seconds had passed after the mold was closed, the mold interval was increased to 1 rrrm. The mold was opened and closed using a hydraulic press.
Claims (2)
脂シートとを積層してスタンピング成形することを特徴
とする複合成形品の製造方法。(1) A method for producing a composite molded article, which comprises laminating a fiber-reinforced thermoplastic resin sheet and a foamable thermoplastic resin sheet and stamping-molding them.
流動点以上の温度に、発泡性熱可塑性樹脂シートを発泡
性熱可塑性樹脂の発泡温度以下の温度に予熱して積層し
、スタンピング成形することを特徴とする請求項（１）
に記載の複合成形品の製造方法。(2) The fiber-reinforced thermoplastic resin sheet is preheated to a temperature above the pour point of the thermoplastic resin, and the foamable thermoplastic resin sheet is preheated to a temperature below the foaming temperature of the foamable thermoplastic resin, then laminated and stamped. Claim (1) characterized in that
The method for manufacturing a composite molded article described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2307216A JPH04179521A (en) | 1990-11-15 | 1990-11-15 | Manufacture of composite molded form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2307216A JPH04179521A (en) | 1990-11-15 | 1990-11-15 | Manufacture of composite molded form |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04179521A true JPH04179521A (en) | 1992-06-26 |
Family
ID=17966445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2307216A Pending JPH04179521A (en) | 1990-11-15 | 1990-11-15 | Manufacture of composite molded form |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04179521A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011224968A (en) * | 2010-04-02 | 2011-11-10 | Hirotani:Kk | Method for manufacturing of interior member for vehicle |
| JP2014208420A (en) * | 2013-03-29 | 2014-11-06 | 積水化成品工業株式会社 | Method for producing fiber reinforced composite and fiber reinforced composite |
-
1990
- 1990-11-15 JP JP2307216A patent/JPH04179521A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011224968A (en) * | 2010-04-02 | 2011-11-10 | Hirotani:Kk | Method for manufacturing of interior member for vehicle |
| JP2014208420A (en) * | 2013-03-29 | 2014-11-06 | 積水化成品工業株式会社 | Method for producing fiber reinforced composite and fiber reinforced composite |
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