JPH0651303B2 - Manufacturing method of fiber-reinforced resin foam thin plate - Google Patents
Manufacturing method of fiber-reinforced resin foam thin plateInfo
- Publication number
- JPH0651303B2 JPH0651303B2 JP1223406A JP22340689A JPH0651303B2 JP H0651303 B2 JPH0651303 B2 JP H0651303B2 JP 1223406 A JP1223406 A JP 1223406A JP 22340689 A JP22340689 A JP 22340689A JP H0651303 B2 JPH0651303 B2 JP H0651303B2
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- resin
- manufacturing
- thin plate
- reinforced resin
- 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 - Fee Related
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は繊維強化樹脂発泡薄板の製造方法に関する。TECHNICAL FIELD The present invention relates to a method for producing a fiber-reinforced resin foam thin plate.
従来、ガラス繊維マット等に発泡樹脂を含浸させてたも
のより繊維強化発泡板を製造する場合、第３図に示すよ
うに発泡樹脂原料Ｃ，Ｃ′，Ｃ″を供給した移送コンベ
ヤＧ上にガラス繊維等からなる補強芯材Ｂ〜Ｂ″を供給
しその上面に発泡樹脂原料Ｃ，Ｃ′，Ｃ″を供給し、さ
らに前記の補強芯材を供給することを繰り返してして積
層体を成形し、これらを発泡炉Ｅを有するダブルコンベ
ヤＤへ供給し一定厚に規制しつつ発泡硬化する方法が知
られている。Conventionally, when a fiber reinforced foam plate is manufactured from a glass fiber mat impregnated with a foam resin, as shown in FIG. 3, it is placed on a transfer conveyor G to which foam resin raw materials C, C ′, C ″ are supplied. A reinforcing core material B to B ″ made of glass fiber or the like is supplied, foamed resin raw materials C, C ′, and C ″ are supplied to the upper surface thereof, and further the above-mentioned reinforcing core material is supplied repeatedly to form a laminated body. There is known a method of molding, supplying these to a double conveyor D having a foaming furnace E, and foaming and curing them while controlling the thickness to a constant value.
しかしながら、上記製造方法で薄物の繊維強化発泡体を
製造する場合、成形板厚にあわせ薄い強化繊維マットを
使用する必要があり、このような繊維マットに粘度の高
い樹脂含浸を均一に行うのは非常に困難であり、また発
泡のコントロールも非常に困難となって均一な品質のも
のが得難く、同時に生産能率も低下するという問題があ
った。However, when manufacturing a thin fiber-reinforced foam by the above-mentioned manufacturing method, it is necessary to use a thin reinforcing fiber mat according to the molding plate thickness, and it is necessary to uniformly impregnate such a fiber mat with a highly viscous resin. There is a problem that it is very difficult to control foaming and it is difficult to obtain a uniform quality, and at the same time, the production efficiency is lowered.
この発明は上記問題に鑑み、薄物の繊維強化発泡板のよ
り高品質のものを、より高効率生産可能な製造方法を提
供することを目的としてなされたものである。The present invention has been made in view of the above problems, and an object thereof is to provide a manufacturing method capable of producing a high-quality thin fiber-reinforced foam plate with higher efficiency.
即ち、この発明の繊維強化樹脂発泡薄板の製造方法は、
発泡用樹脂を含浸させた不織布等のマット状シートを離
型シートを介して複数枚積層し、該積層体をダブルコン
ベヤへ移送し、加熱することにより発泡硬化させ次いで
前記離型シートにて発泡板を分離させることを特徴とす
るものである。That is, the manufacturing method of the fiber-reinforced resin foam thin plate of the present invention,
A plurality of mat-like sheets such as non-woven fabric impregnated with a foaming resin are laminated through a release sheet, and the laminated body is transferred to a double conveyor and heated to foam and cure, and then foamed by the release sheet. It is characterized in that the plates are separated.
この発明に用いる発泡用樹脂とは酸硬化型液状フェノー
ル樹脂である。The foaming resin used in this invention is an acid-curable liquid phenol resin.
離型シートとしては耐熱性、耐水性、耐溶剤性およびガ
ス透過性を有し、かつ硬化フェノール樹脂層との離型性
の良いフィルムが使用される。As the release sheet, a film having heat resistance, water resistance, solvent resistance and gas permeability and having good release properties from the cured phenolic resin layer is used.
また上記フィルムのガス透過性は、樹脂から出る揮発分
は透過させるものが良く、さらに離型硬化を得るため官
能基を持たない成分からなるものが良い。この条件に合
うものとしてポリプロピレンのシートなどがある。Further, the gas permeability of the above film is preferably such that volatile components emitted from the resin are permeable, and further, it is composed of a component having no functional group in order to obtain release curing. There is a polypropylene sheet or the like that meets this condition.
この発明において、上記強化繊維マットと樹脂とを相互
にサンドイッチ状に積層し、かつその積層体の界面に上
述の離型シートを介挿していく。In the present invention, the reinforcing fiber mat and the resin are laminated in a sandwich form, and the release sheet is inserted at the interface of the laminated body.
従って、ダブルコンベヤでの加熱による発泡硬化時積層
体全体が均一に発泡し、かつ一定厚さに規制されて成形
される。Therefore, when foaming and hardening by heating with a double conveyor, the entire laminate is uniformly foamed and regulated to a constant thickness for molding.
しかる後、発泡成形体を離型シートにより各層に分離さ
れ薄いシート体とされる。Then, the foamed molded product is separated into layers by a release sheet to form a thin sheet.
このシート体は発泡硬化時は全体が一体となって発泡硬
化しているため発泡圧が均一化されしたがって各層の密
度も均一化される。When the sheet is foamed and cured, the entire sheet is integrally foamed and cured, so that the foaming pressure is made uniform and therefore the density of each layer is also made uniform.
さらに、離型シートにより剥離も容易となる。Further, the release sheet facilitates peeling.
次に、この発明を実施例により説明する。 Next, the present invention will be described with reference to examples.
第１図はこの発明の実施例の側面図である。この発明の
繊維強化樹脂発泡体の製造方法１は、移送コンベヤ１Ｇ
上で厚さ2.5mmのガラス繊維マット１Ｂの表裏に発泡剤
配合のフェノール樹脂１Ｃ，２Ｃをドクターナイフ１
Ｊ，２Ｊで所定塗布量を圧入塗布後、供給ロール２より
厚さ３０μのポリプロピレン樹脂製離型シート３を発泡
用樹脂を含浸した繊維マット上に押圧ロールＲを介して
載置し、更に発泡用樹脂原料３Ｃ、繊維マット２Ｂ、発
泡用樹脂４Ｃを第１層と同様の操作で積層後ダブルコン
ベヤ１０に供給し挟持、加熱炉１Ｅで加熱発泡させた。FIG. 1 is a side view of an embodiment of the present invention. The manufacturing method 1 of the fiber-reinforced resin foam of the present invention is a transfer conveyor 1G.
Doctor knife 1 with phenolic resin 1C and 2C containing foaming agent on the front and back of glass fiber mat 1B with a thickness of 2.5 mm.
After press-fitting a predetermined amount of coating with J and 2J, a polypropylene resin release sheet 3 having a thickness of 30 μm from the supply roll 2 is placed on the fiber mat impregnated with the foaming resin through the pressing roll R, and further foamed. The resin raw material 3C, the fiber mat 2B, and the foaming resin 4C were stacked in the same manner as in the first layer, then supplied to the double conveyor 10, sandwiched, and heated and foamed in the heating furnace 1E.
硬化後前記成形体を離型シートより分割し、厚さ６mm、
密度５００kg/m3の繊維強化樹脂発泡薄板を２枚得た。After curing, the molded body is divided from the release sheet to have a thickness of 6 mm,
Two thin fiber-reinforced resin foam plates having a density of 500 kg / m 3 were obtained.
これらの薄板は表裏状態が均一な平滑面となっており、
任意断面における内部マトリックスの状態も非常に均一
となっていた。These thin plates have a smooth surface with uniform front and back conditions.
The state of the internal matrix in any cross section was also very uniform.
第２図は補強芯３枚から成る場合を示すもので上記実施
例と同様離型シートを介して発泡硬化後、この離型シー
トで分離したところ上記実施例と同様きわめて品質良好
な発泡樹脂薄板を得ることが出来た。FIG. 2 shows a case where three reinforcing cores are used, and after foaming and curing via a release sheet as in the above-mentioned embodiment, it was separated by this release sheet, and a foamed resin thin plate of extremely good quality as in the above-mentioned embodiment. I was able to get
この発明は以上説明したように、繊維強化樹脂発泡板間
に離型シートを挟持して発泡硬化させその後離型シート
部分で分離するから、各層に対する影響圧力の均等化が
良く達成され、発泡率、発泡状態も極めて均一にでき、
さらに層間の剥離が容易で生産能率の向上だけでなく製
品の剥離後の表面も美しく、発泡効率が良いから製品の
厚みも確保される。また実施に際しても各装置は同一ラ
イン上に設置可能であるから作業性も簡単であるなど種
々の効果がある。As described above, according to the present invention, since the release sheet is sandwiched between the fiber-reinforced resin foam plates, foamed and cured, and then separated at the release sheet portion, equalization of the influence pressure on each layer is well achieved, and the foaming rate is improved. , The foaming state can also be made extremely uniform,
Further, the peeling between the layers is easy and not only the production efficiency is improved, but also the surface of the product after peeling is beautiful and the foaming efficiency is good, so that the thickness of the product can be secured. In addition, since each device can be installed on the same line when it is implemented, there are various effects such as easy workability.
第１図，第２図はこの発明の実施例の側面図、第３図は
従来の説明図である。1 and 2 are side views of an embodiment of the present invention, and FIG. 3 is a conventional explanatory view.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｋ 105:06 Ｂ２９Ｌ 7:00 4Ｆ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI Technical display area B29K 105: 06 B29L 7:00 4F
Claims (1)
状シートを離型シートを介して複数枚積層し、該積層体
をダブルコンベヤへ移送し、加熱することにより発泡硬
化させ次いで前記離型シートにて発泡板を分離させるこ
とを特徴とする繊維強化樹脂発泡薄板の製造方法。1. A plurality of mat-like sheets such as a non-woven fabric impregnated with a foaming resin are laminated via a release sheet, and the laminated body is transferred to a double conveyor and heated to foam and cure, and then the release is performed. A method for producing a fiber-reinforced resin foam thin plate, which comprises separating the foam plate with a mold sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1223406A JPH0651303B2 (en) | 1989-08-30 | 1989-08-30 | Manufacturing method of fiber-reinforced resin foam thin plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1223406A JPH0651303B2 (en) | 1989-08-30 | 1989-08-30 | Manufacturing method of fiber-reinforced resin foam thin plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0386506A JPH0386506A (en) | 1991-04-11 |
| JPH0651303B2 true JPH0651303B2 (en) | 1994-07-06 |
Family
ID=16797645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1223406A Expired - Fee Related JPH0651303B2 (en) | 1989-08-30 | 1989-08-30 | Manufacturing method of fiber-reinforced resin foam thin plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0651303B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATA142496A (en) * | 1996-08-07 | 2000-10-15 | Danubia Petrochem Polymere | DEVICE FOR HEATING FIBER REINFORCED THERMOPLASTICS BY MEANS OF HEAT CONTACT |
| WO2003080719A1 (en) | 2002-03-18 | 2003-10-02 | University Of Southern California | Reinforced phenolic foam |
| US6864297B2 (en) | 2002-07-22 | 2005-03-08 | University Of Southern California | Composite foam made from polymer microspheres reinforced with long fibers |
| CA2587903A1 (en) | 2004-11-17 | 2006-05-26 | Amgen Fremont Inc. | Fully human monoclonal antibodies to il-13 |
| CN108357157A (en) * | 2018-04-02 | 2018-08-03 | 江苏美龙航空部件有限公司 | A kind of high intensity Phonelic foam sandwich board that resistance to compression is anti-shearing and its manufacturing method |
-
1989
- 1989-08-30 JP JP1223406A patent/JPH0651303B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0386506A (en) | 1991-04-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |