JPH044233A - Fiber-reinforced composite material prepreg sheet - Google Patents
Fiber-reinforced composite material prepreg sheetInfo
- Publication number
- JPH044233A JPH044233A JP2106868A JP10686890A JPH044233A JP H044233 A JPH044233 A JP H044233A JP 2106868 A JP2106868 A JP 2106868A JP 10686890 A JP10686890 A JP 10686890A JP H044233 A JPH044233 A JP H044233A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- vibration damping
- resin
- composite material
- prepreg sheet
- 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
- 239000000463 material Substances 0.000 title claims abstract description 38
- 239000003733 fiber-reinforced composite Substances 0.000 title claims description 18
- 238000013016 damping Methods 0.000 claims abstract description 28
- 239000011347 resin Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000004917 carbon fiber Substances 0.000 claims abstract description 9
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 8
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 5
- 239000003365 glass fiber Substances 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000004760 aramid Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 abstract description 10
- 229920000647 polyepoxide Polymers 0.000 abstract description 10
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 5
- 239000011342 resin composition Substances 0.000 abstract description 4
- 125000003700 epoxy group Chemical group 0.000 abstract description 2
- 125000000524 functional group Chemical group 0.000 abstract description 2
- 230000009477 glass transition Effects 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 14
- 239000000835 fiber Substances 0.000 description 8
- 239000004744 fabric Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000012784 inorganic fiber Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 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
- 125000004018 acid anhydride group Chemical group 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000011074 autoclave method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 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
- 238000007731 hot pressing Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000203 mixture Substances 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
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、割振構造体の素材として用いられる繊維強化
複合材料プリプレグシートに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fiber-reinforced composite material prepreg sheet used as a material for an allocation structure.
ＣＦＲＰなど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。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 resins, polyimide resins, and polyether ether ketone resins.
繊維強化複合材料は、従来の金属構造材料に比較して軽
量・高強度であり、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人工衛星等宇宙構造物・航空機
・自動車・ＯＡ機器・レジャー用品などの構造体に幅広
く用いられ、構造物、機器類の振動・騒音の低減が図ら
れている。Fiber-reinforced composite materials are lighter and stronger than conventional metal structural materials, and are superior in that desired mechanical properties can be achieved by controlling the fiber orientation angle. For this reason,
It is widely used in the structures of space structures such as artificial satellites, aircraft, automobiles, OA equipment, leisure goods, etc. that require strong weight reduction, and is used to reduce vibration and noise in structures and equipment.
この種の複合材料で作製した横遺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。As the use of horizontal corpses made of this type of composite material expands, vibration of the structure has become a problem.
すなわち、繊維強化複合材料は軽量であり、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η＝
ｏ、 ｏｏｉ〜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、接続部での牽擦による振
動減衰（梢造減表）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、横遺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。In other words, fiber-reinforced composite materials are lightweight and have small vibration damping properties (loss coefficient η =
o, ooi ~ 0.01), it is easy to generate vibrations, and structures are often made by integral molding, and unlike conventional metal structural materials, vibration damping ( We cannot expect Kozuzo reduction table). For this reason, in space structures such as artificial satellites, on-board equipment may malfunction due to vibrations of the lateral bodies, and antenna position accuracy may deteriorate.
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。Therefore, the increase in vibration damping properties of fiber-reinforced composites is
This 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
ゴムなどの可撓性付与剤を添加し、振動′＄Ｌ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
。しかし可撓性付与剤の添加により樹脂の振動減衰特性
を数十的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。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 producing a composite material by adding a flexibility imparting agent such as polyethylene glycol, polypropylene glycol, or liquid rubber to a matrix resin to increase the vibration '$L damping characteristics. However, although the vibration damping properties of the resin can be improved by several tens of times by adding a flexibility imparting 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 effective.
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
材料プリプレグシートを提供することにある。The present invention is intended to solve the above-mentioned problems, and its purpose is to provide a fiber-reinforced composite material prepreg sheet having high vibration damping properties.
前記目的を達成するため、本発明に係る繊維強化複合材
料プリプレグシートにおいては、拘束型制振材料樹脂に
、カーボン、カラス繊維なとの無機強化繊維又はアラミ
ド繊維などの有機強化＃１１維を含む繊維強化複合材料
プリプレグシートであって、
拘束型制振材料樹脂は半硬化状態であるものである。In order to achieve the above object, in the fiber-reinforced composite material prepreg sheet according to the present invention, the constrained vibration damping material resin contains inorganic reinforcing fibers such as carbon and glass fibers, or organic reinforcing #11 fibers such as aramid fibers. This is a fiber-reinforced composite material prepreg sheet, in which the constrained vibration damping material resin is in a semi-cured state.
本発明の繊維強化複合材料プリプレグシートにおいては
、マトリックス樹脂に拘束型制振材料を用いている。こ
のため、本発明の複合材料プリプレグシートを用いて、
オートクレーブ法や加熱プレス法などの成形方法で試作
した繊維強化複合材料は、拘束型制振材料樹脂のもつ振
動減衰降下により、大きな振動減衰特性を有する。また
、エポキシ樹脂などのマトリックス樹脂と強化繊維とか
らなる従来の複合材料プリプレグシートに組み合わせて
成形しても良い。In the fiber-reinforced composite material prepreg sheet of the present invention, a constrained vibration damping material is used for the matrix resin. Therefore, using the composite material prepreg sheet of the present invention,
Fiber-reinforced composite materials prototyped using molding methods such as autoclaving and hot pressing have great vibration damping properties due to the vibration damping drop of the constrained vibration damping material resin. Further, it may be molded in combination with a conventional composite material prepreg sheet made of a matrix resin such as an epoxy resin and reinforcing fibers.
拘束型制振材料樹脂としては、エポキシ樹脂を基材とす
る制振材用組成物を用いる。具体的には、ｉａ）エポキ
シ系樹脂と、（ｂ）硬化剤と、ｆｃ）エポキシ系樹脂の
エポキシ基と反応しうる、カルボキシル基、酸無水物基
、アミノ基、アミド基、メルカプト基から選ばれる少な
くとも１種以上の官能基を１分子中に平均１．６個以上
有し、かつカラス転移温度か０℃以下の液状重合体とを
含む樹脂組成物（特願昭６２−１８９１２号）や、ｆａ
）ポリオールまたはその重合体のポリグリシジルエーテ
ルであるエポキシ樹脂と、（１））硬化剤と、ｆｃ）芳
香族炭化水素類、フェノール類またはこれらの内の少な
くとも１種類を主成分とする重合体であって、がつ軟化
点か２５°Ｃ以下の化合物とからなる樹脂組成物（特願
昭６２−９２６８９号）その他の樹脂組成物を用いる（
特願昭６２−１８９１３号、６２−０５９８６６号、６
２−９２６８８号、６３−３１４１５号参照）また、こ
れらの材料としては、弾性＄１０ｋｇ／關 以下、好ま
しくは１に「／１ｌ１１２以下のもの、力学的損失ｔａ
ｎδは、０．１以上のもの、好ましくは０．５以上のも
のか使用できる。As the constraint type vibration damping material resin, a vibration damping material composition having an epoxy resin as a base material is used. Specifically, it is selected from ia) an epoxy resin, (b) a curing agent, and fc) a carboxyl group, an acid anhydride group, an amino group, an amide group, and a mercapto group that can react with the epoxy group of the epoxy resin. A resin composition containing a liquid polymer having an average of 1.6 or more functional groups in one molecule and having a glass transition temperature of 0°C or lower (Japanese Patent Application No. 18912/1982); ,fa
) an epoxy resin which is a polyglycidyl ether of a polyol or its polymer; (1) a curing agent; and fc) an aromatic hydrocarbon, a phenol, or a polymer containing at least one of these as a main component. A resin composition consisting of a compound having a softening point of 25°C or less (Japanese Patent Application No. 62-92689) and other resin compositions (
Patent application No. 62-18913, No. 62-059866, 6
(Refer to Nos. 2-92688 and 63-31415) In addition, these materials have an elasticity of less than $10 kg/kg, preferably less than 1/1l112, and a mechanical loss of ta
nδ can be 0.1 or more, preferably 0.5 or more.
強化繊維は、公知のものが使用でき、炭素繊維、アルミ
ナ繊維、炭素ゲイ素繊維、ガラス繊維などの無機１１１
Ｍ、アラミド繊維、テクミロンなどの有機１ａＮか使用
できる。これら繊維の形態としては一方向に引きそろえ
たもの、側ｅＩ（平織、あや織、しゅす織など）や切断
した短繊維、繊維かがらみあったマット状の織物が使用
できる。Known reinforcing fibers can be used, including inorganic fibers such as carbon fibers, alumina fibers, carbon-gay fibers, and glass fibers.
Organic 1aN such as M, aramid fiber, and Techmilon can be used. These fibers may be arranged in one direction, side eI (plain weave, twill weave, satin weave, etc.), cut short fibers, or mat-like woven fabrics in which the fibers are intertwined.
以下、本発明の実施例を図により説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例を示す断面図である。FIG. 1 is a sectional view showing one embodiment of the present invention.
図において、実施例は、ポリエーテル型エポキシ樹脂を
基材とした拘束型制振材料樹脂３に、カーボン繊維の平
織りクロス材２を浸し、これを半硬化処理してシート状
に加工したものである。In the example shown in the figure, a carbon fiber plain weave cloth material 2 is soaked in a restraining type vibration damping material resin 3 based on a polyether type epoxy resin, and this is semi-cured and processed into a sheet shape. be.
得られたプリプレグシート１は、硬化した状態で、室温
において ｔａｎδ＝１．５をもつ。The obtained prepreg sheet 1 has tan δ=1.5 at room temperature in the cured state.
次に、上記プリプレグシートを用いて繊維強化複合材料
を構成した実施例を第２図、第３図に基いて説明する。Next, an example in which a fiber-reinforced composite material is constructed using the above prepreg sheet will be described with reference to FIGS. 2 and 3.
第２図、第３図において、４は、カーボン繊維の平織り
クロス材とエポキシ樹脂からなる従来のプリプレグシー
トて゛あって、５は、カーボン繊維の平織りクロス材を
半硬化の拘束型制振材料樹脂中に含む本発明のプリプレ
グシートである。In FIGS. 2 and 3, 4 is a conventional prepreg sheet made of carbon fiber plain weave cloth material and epoxy resin, and 5 is a semi-cured restraint-type vibration damping material resin made of carbon fiber plain weave cloth material. This is the prepreg sheet of the present invention contained therein.
第２図に示す実施例は、本発明のプリプレグシート５を
上下に２層積層し、その上下に従来のプリプレグシート
４を３層ずつ積層して繊維強化複合材料積層体Ｃ１を形
成し、オートクレーブ法により硬化して一体成型したも
のである。In the embodiment shown in FIG. 2, two prepreg sheets 5 of the present invention are stacked one above the other, three layers of conventional prepreg sheets 4 are stacked on top and bottom of this to form a fiber-reinforced composite material laminate C1. It is cured and molded in one piece using a method.
また、第３図に示す実施例は、従来のプリプレグシート
６を６層積層して、その上下に本発明のプリプレグシー
ト５を１層ずつ積層して繊維強化複合材料積層体Ｃ２を
形成し、オートクレーブ法により硬化して一体成型した
ものである。Further, in the embodiment shown in FIG. 3, six layers of conventional prepreg sheets 6 are laminated, and one layer of the prepreg sheet 5 of the present invention is laminated on top and bottom of the six layers to form a fiber-reinforced composite material laminate C2, It is cured and integrally molded using an autoclave method.
第４図は、第２図および第３図に示す実施例の複合材料
積層体ＣＩ、 Ｃｘの損失係数と周波数の関係を示す、
複合材料積層体Ｃ＋ 、 Ｃ２の試験片に曲げ振動を加
え測定した０図中、実１１６は第２図に示す実施例の複
合材料積層体Ｃ１の特性、破線７は第３図に示す実施例
の複合材料積層体Ｃ２の特性、−点破線８は従来の繊維
強化複合材料積層体の特性である。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、本発明のプリプレグシートを用いた複合材
料積層体は、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. 4 shows the relationship between the loss coefficient and frequency of the composite material laminates CI and Cx of the embodiment shown in FIGS. 2 and 3.
In Figure 0, the test pieces of the composite material laminates C+ and C2 were subjected to bending vibration and measured. In Figure 0, the actual 116 indicates the characteristics of the composite material laminate C1 of the example shown in Figure 2, and the broken line 7 represents the example shown in Figure 3. Characteristics of the composite material laminate C2, - dotted line 8 are characteristics of the conventional fiber-reinforced composite material laminate. 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 laminate using the prepreg sheet of the present invention has greater vibration damping characteristics than the conventional one.
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か可能となり、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。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 the failure of onboard equipment in space structures such as artificial satellites, reduce the positional accuracy of antennas, etc. This has the effect of solving noise problems.
第１図は本発明の一実施例を示す断面図、第２図および
第３図は第１図に示す実施例のプリプレグシートを用い
て作製した複合材料積層体を示す断面図、第４図は第２
図および第３図に示す実施例の複合材料積層体と従来の
複合材料積層体の損失係数の比較を示す図である。
１・・・プリプレグシート
２・・・カーボン繊維の乎織りクロス材３・・・拘束型
制振材料樹脂
／ブリプ１グンーと
？FIG. 1 is a sectional view showing one embodiment of the present invention, FIGS. 2 and 3 are sectional views showing a composite material laminate made using the prepreg sheet of the embodiment shown in FIG. 1, and FIG. is the second
FIG. 4 is a diagram showing a comparison of the loss coefficients of the composite material laminate of the example shown in FIGS. and 3 and the conventional composite material laminate. 1... Prepreg sheet 2... Carbon fiber woven cloth material 3... Restraint type vibration damping material resin/Blip 1 Gunto?
Claims (1)
どの無機強化繊維又はアラミド繊維などの有機強化繊維
を含む繊維強化複合材料プリプレグシートであつて、 拘束型制振材料樹脂は半硬化状態であることを特徴とす
る繊維強化複合材料プリプレグシート。(1) A fiber-reinforced composite prepreg sheet containing inorganic reinforcing fibers such as carbon and glass fibers or organic reinforcing fibers such as aramid fibers in a restrained vibration damping material resin, where the restrained vibration damping material resin is in a semi-cured state. A fiber-reinforced composite prepreg sheet characterized by:
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2106868A JPH044233A (en) | 1990-04-23 | 1990-04-23 | Fiber-reinforced composite material prepreg sheet |
| EP91101000A EP0439197B1 (en) | 1990-01-26 | 1991-01-25 | A fiber reinforced composite material |
| DE69131081T DE69131081T2 (en) | 1990-01-26 | 1991-01-25 | Fiber reinforced composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2106868A JPH044233A (en) | 1990-04-23 | 1990-04-23 | Fiber-reinforced composite material prepreg sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH044233A true JPH044233A (en) | 1992-01-08 |
Family
ID=14444524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2106868A Pending JPH044233A (en) | 1990-01-26 | 1990-04-23 | Fiber-reinforced composite material prepreg sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH044233A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009160685A (en) * | 2008-01-04 | 2009-07-23 | Nippon Oil Corp | CFRP conveyance member and robot hand using the same |
-
1990
- 1990-04-23 JP JP2106868A patent/JPH044233A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009160685A (en) * | 2008-01-04 | 2009-07-23 | Nippon Oil Corp | CFRP conveyance member and robot hand using the same |
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