JPH03120035A - Manufacture of fiber-reinforced composite material - Google Patents
Manufacture of fiber-reinforced composite materialInfo
- Publication number
- JPH03120035A JPH03120035A JP1259129A JP25912989A JPH03120035A JP H03120035 A JPH03120035 A JP H03120035A JP 1259129 A JP1259129 A JP 1259129A JP 25912989 A JP25912989 A JP 25912989A JP H03120035 A JPH03120035 A JP H03120035A
- Authority
- JP
- Japan
- Prior art keywords
- composite material
- sheet
- fiber
- reinforced composite
- laminated
- 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
- 239000000463 material Substances 0.000 title claims description 20
- 239000003733 fiber-reinforced composite Substances 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000011347 resin Substances 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 239000003190 viscoelastic substance Substances 0.000 claims abstract description 10
- 239000003677 Sheet moulding compound Substances 0.000 claims abstract description 8
- 239000011159 matrix material Substances 0.000 claims abstract description 5
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 5
- 238000010030 laminating Methods 0.000 claims abstract 3
- 239000002131 composite material Substances 0.000 abstract description 15
- 229920000098 polyolefin Polymers 0.000 abstract description 5
- 239000000835 fiber Substances 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 229920001225 polyester resin Polymers 0.000 abstract description 4
- 239000004645 polyester resin Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 229940125782 compound 2 Drugs 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 15
- 239000003365 glass fiber Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Moulding By Coating Moulds (AREA)
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、人工衛星等宇宙構造物、ＯＡ機器、自動車・
レジャー用品などの構造体に用いて振動、騒音の低減を
実現する繊維強化複合材料の作製方法に関するものであ
る。[Detailed Description of the Invention] (Industrial Application Field) The present invention is applicable to space structures such as artificial satellites, OA equipment, automobiles, etc.
The present invention relates to a method for producing a fiber-reinforced composite material that can be used in structures such as leisure goods to reduce vibration and noise.
（従来の技術）
ＣＦＲＰなとの繊維強化複合材料は、カーボンやガラス
繊維などの無機繊維又はアラミド繊維などの有機繊維を
エポキシ樹脂、ポリイミド樹脂、ポリエーテルエーテル
ケトン樹脂などの樹脂で固型化したものである。(Prior technology) Fiber-reinforced composite materials such as CFRP are made by solidifying inorganic fibers such as carbon and glass fibers or organic fibers such as aramid fibers with resins such as epoxy resin, polyimide resin, and polyether ether ketone resin. It is something.
繊維強化複合材料は、従来の金属系構造材料に比較して
軽量・高強度である、繊維配向角を制御することにより
所望の機械特性を実現できる点で優れている。このため
、強く軽量化が要求される宇宙構造物・航空機・自動車
ルジャー用品などの構造材料に巾広く用いられるように
なった。Fiber-reinforced composite materials are superior in that they are lighter and stronger than conventional metal-based structural materials, and desired mechanical properties can be achieved by controlling the fiber orientation angle. For this reason, it has come to be widely used as a structural material for space structures, aircraft, automobile Luger parts, etc., which strongly require weight reduction.
（発明が解決しようとする課題）
この種の複合材料で作製した構造体の用途の拡大に伴い
、構造体の振動が問題となっている。(Problems to be Solved by the Invention) As the uses of structures made of this type of composite material expand, vibration of the structures has become a problem.
繊維強化複合材料は１．軽量であり、従来の金属構造材
料と同程度の小さな振動減衰特性（損失係数ｒｌ＝０．
００１〜０．０１）をもつため、振動を生じ易い。また
、構造物を一体成型で作製することが多く、従来の金属
構造材料とは異なり、接続部での摩擦による振動減衰（
構造減衰）を期待できない。このため、人工衛星などの
宇宙構造物では、構造体の振動による搭載機器の故障、
アンテナの位置精度の低下などが生じている。このため
、繊維強化複合材料の振動減衰特性の増加は、重要な課
題となっている。Fiber reinforced composite materials are 1. It is lightweight and has small vibration damping properties (loss coefficient rl=0.
001 to 0.01), vibrations are likely to occur. In addition, structures are often manufactured by integral molding, and unlike conventional metal structural materials, vibration damping due to friction at connections (
structural damping) cannot be expected. For this reason, in space structures such as artificial satellites, onboard equipment may malfunction due to vibration of the structure.
This causes a decrease in antenna position accuracy. Therefore, increasing the vibration damping properties of fiber-reinforced composite materials has become an important issue.
これらの問題を解決する目的で、マトリックス樹脂の振
動減衰を増加させて複合材料の振動減衰を増加させる手
法が検討されている。これは、マトリックス樹脂にポリ
エチレングリコール・ポリプロピレングリコール・液状
ゴムなどの可どう仕付与剤を添加し、振動減衰特性を増
加させた樹脂を用いて複合材料を作製する手法である。In order to solve these problems, methods are being considered to increase the vibration damping of composite materials by increasing the vibration damping of matrix resins. This is a method of manufacturing a composite material using a resin that has increased vibration damping properties by adding a modifier such as polyethylene glycol, polypropylene glycol, or liquid rubber to a matrix resin.
しかし可どう仕付与剤の添加により樹脂の振動減衰特性
を数十倍程度に改善できるものの、複合材料の振動減衰
特性は数倍程度の増加しか得られず、また大きな剛性の
低下をともなうので効果的ではない。本発明は前記問題
点を解決するものであり、その目的とするところは大き
な振動減衰特性を有する繊維強化複合材料を提供するこ
とにある。However, although the vibration damping properties of the resin can be improved several tens of times by adding a stiffening agent, the vibration damping properties of the composite material can only be increased by several times, and this is accompanied by a large decrease in rigidity. Not the point. The present invention is intended to solve the above-mentioned problems, and its purpose is to provide a fiber-reinforced composite material with high vibration damping properties.
（課題を解決するための手段）
本発明は、カーボンやガラス繊維などの強化繊維とマト
リックス樹脂からなるシートモールディングコンパウン
ドと粘弾性材料シートとを積層し、加圧加熱により硬化
させることを特徴とする繊維強化複合材料の作製方法を
提供することにある。(Means for Solving the Problems) The present invention is characterized in that a sheet molding compound made of reinforcing fibers such as carbon or glass fibers and a matrix resin and a viscoelastic material sheet are laminated and cured by pressure heating. An object of the present invention is to provide a method for producing a fiber-reinforced composite material.
（作用）
本発明の作製方法では、樹脂と強化繊維からなるシート
モールディングコンパウンドを粘弾性材料シートと積層
し硬化させるため、カーボンやガラス繊維などの強化繊
維と樹脂からなる複合材料層と粘弾性層が積層一体化し
た繊維強化複合材料を実現できる。前記複合材料は、層
間の粘弾性材料の振動減衰効果により大きな振動減衰特
性を有する。(Function) In the production method of the present invention, a sheet molding compound made of resin and reinforcing fibers is laminated with a viscoelastic material sheet and cured, so a composite material layer made of reinforcing fibers such as carbon or glass fiber and resin and a viscoelastic layer It is possible to create a fiber-reinforced composite material in which the layers are integrated. The composite material has great vibration damping properties due to the vibration damping effect of the viscoelastic material between the layers.
粘弾性材料シートとしては、半硬化物（Ｂステージ状）
および硬化物シート、ポリオレフィンやポリエーテルな
どの熱可塑性エラストマーシート、ジノコーンゴムシー
トなど公知ものが使用できる。As a viscoelastic material sheet, semi-cured material (B stage shape)
Also, known materials such as cured material sheets, thermoplastic elastomer sheets such as polyolefin and polyether sheets, and dinocone rubber sheets can be used.
（実施例） 以下に本発明の実施例を図によって説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.
第１図に本発明繊維強化複合材料の作製方法のフローを
示す。実施例は、シートモールディングコンパウンドを
型に合わせて裁断し、粘弾性材料シートとシートモール
ディングコンパウンドを要求される積層順序に従い型の
中に積層する。前記積層物をオートクレーブやプレスで
加圧・加熱により成形硬化させる。FIG. 1 shows the flow of the method for producing the fiber-reinforced composite material of the present invention. In an embodiment, a sheet molding compound is cut to fit a mold, and the viscoelastic material sheet and the sheet molding compound are laminated into the mold according to the required stacking order. The laminate is molded and hardened by pressure and heating in an autoclave or press.
第２図に、第１図実施例の作製方法を用いて作製した複
合材料の断面図を示す。シートモールディングコンパウ
ンド２には、ガラスの短繊維とポリエステル樹脂からな
るものを用いた。また、粘弾性材料シート１には熱接着
性をもつポリオレフィンシート使用した。図より明らか
な様に、ガラスの短繊維とポリエステル樹脂からなる複
合材料層とポリオレフィンシートが積層一体化した構造
をもつ。FIG. 2 shows a cross-sectional view of a composite material manufactured using the manufacturing method of the example shown in FIG. The sheet molding compound 2 was made of short glass fibers and polyester resin. Further, as the viscoelastic material sheet 1, a polyolefin sheet having thermal adhesive properties was used. As is clear from the figure, it has a structure in which a composite material layer made of short glass fibers and polyester resin and a polyolefin sheet are laminated and integrated.
第３図に、第２図実施例の複合材料の損失係数と周波数
の関係を示す。複合材料試験片に曲げ振動を加え測定し
た。図中実線は第２図実施例の複合材料の特性、破線は
、従来の作製方法で作製した繊維強化複合材料の特性で
ある。いずれも固有振動数での自由減衰カーブより損失
係数を求めた。図により明らかな通り、本発明の作製方
法による複合材料は、従来のものに比較して、大きな振
動減衰特性が得られている。FIG. 3 shows the relationship between the loss coefficient and frequency of the composite material of the example in FIG. 2. Bending vibration was applied to the composite material test piece and measured. The solid line in the figure is the characteristic of the composite material of the example in FIG. 2, and the broken line is the characteristic of the fiber-reinforced composite material produced by the conventional production method. In both cases, the loss coefficient was determined from the free damping curve at the natural frequency. As is clear from the figure, the composite material produced by the manufacturing method of the present invention has greater vibration damping characteristics than the conventional material.
（発明の効果）
以上のように本発明によれば、振動減衰特性の大きな繊
維強化複合材料を実現することが可能となり、人工衛星
などの宇宙構造物における搭載機器の故障やアンテナの
位置精度の低下、自動車などの騒音問題を解決できる効
果を有するものである。(Effects of the Invention) As described above, according to the present invention, it is possible to realize a fiber-reinforced composite material with high vibration damping characteristics, which can prevent failures of on-board equipment in space structures such as artificial satellites, and reduce antenna position accuracy. It has the effect of solving noise problems caused by automobiles, etc.
第１図は本発明の実施例を作製方法のフロー図、第２図
は実施例の作製方法を用いて作製した複合材料の断面図
、第３図は複合材料の損失係数を示す図である。
１・・・粘弾性材料シート、Figure 1 is a flow diagram of a method for manufacturing an example of the present invention, Figure 2 is a cross-sectional view of a composite material manufactured using the manufacturing method of the example, and Figure 3 is a diagram showing the loss factor of the composite material. . 1... Viscoelastic material sheet,
Claims (1)
ングコンパウンドと粘弾性材料シートとを積層し、加圧
加熱により硬化させることを特徴とする繊維強化複合材
料の作製方法。A method for producing a fiber-reinforced composite material, which comprises laminating a sheet molding compound made of reinforcing fibers and a matrix resin and a viscoelastic material sheet, and curing the laminated sheet by applying heat and pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1259129A JPH0712643B2 (en) | 1989-10-03 | 1989-10-03 | Method for producing fiber-reinforced composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1259129A JPH0712643B2 (en) | 1989-10-03 | 1989-10-03 | Method for producing fiber-reinforced composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03120035A true JPH03120035A (en) | 1991-05-22 |
| JPH0712643B2 JPH0712643B2 (en) | 1995-02-15 |
Family
ID=17329721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1259129A Expired - Fee Related JPH0712643B2 (en) | 1989-10-03 | 1989-10-03 | Method for producing fiber-reinforced composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0712643B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786293B (en) * | 2014-01-22 | 2016-07-06 | 南京理工大学 | A kind of fusion forming method of large scale bulk composite material of thermoplastic macromolecule |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4927576A (en) * | 1972-07-10 | 1974-03-12 | ||
| JPS6194726A (en) * | 1984-10-16 | 1986-05-13 | Mitsubishi Motors Corp | Fiber reinforced plastic molding material |
-
1989
- 1989-10-03 JP JP1259129A patent/JPH0712643B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4927576A (en) * | 1972-07-10 | 1974-03-12 | ||
| JPS6194726A (en) * | 1984-10-16 | 1986-05-13 | Mitsubishi Motors Corp | Fiber reinforced plastic molding material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0712643B2 (en) | 1995-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |