JPS6320449B2 - - Google Patents
Info
- Publication number
- JPS6320449B2 JPS6320449B2 JP59051165A JP5116584A JPS6320449B2 JP S6320449 B2 JPS6320449 B2 JP S6320449B2 JP 59051165 A JP59051165 A JP 59051165A JP 5116584 A JP5116584 A JP 5116584A JP S6320449 B2 JPS6320449 B2 JP S6320449B2
- Authority
- JP
- Japan
- Prior art keywords
- composite material
- vibration damping
- epoxy resin
- peg
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B17/00—Chain saws; Equipment therefor
- B27B17/0033—Devices for attenuation of vibrations
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Epoxy Resins (AREA)
Description
【発明の詳細な説明】
(イ) この発明の技術分野
この発明は複合材料に関し、さらに詳しくは、
補強繊維と樹脂との複合材料に関する。[Detailed Description of the Invention] (a) Technical Field of the Invention The present invention relates to composite materials, and more specifically,
Related to composite materials of reinforcing fibers and resin.
(ロ) 従来技術とその欠点
補強繊維と樹脂との複合材料は、近年、たとえ
ばゴルフシヤフト、テニスラケツトなどのスポー
ツ用途、スピーカコーンやスピーカボツクスなど
の音響用途、ギターやバイオリンの裏甲板や響板
などの楽器用途といつたように、極めて広範な分
野で使用されている。しかして、そのような用途
においては、ほとんど例外なく高い振動減衰性が
要求されている。(b) Prior art and its disadvantages Composite materials of reinforcing fibers and resins have recently been used for sports applications such as golf shafts and tennis rackets, for acoustic applications such as speaker cones and speaker boxes, and for back decks and soundboards of guitars and violins. It is used in an extremely wide range of fields, such as musical instruments. However, in such applications, almost without exception, high vibration damping properties are required.
そのような高振動減衰性複合材料としては、た
とえば特開昭54−113299号公報に記載されている
ようなものが知られている。この従来の複合材料
は、その、いわゆるマトリクス樹脂に、それ自体
高い振動減衰性を有するポリエチレングリコール
を混入し、もつて複合材料の振動減衰性を向上せ
んとするものである。しかしながら、かかる従来
の複合材料は、室温程度の温度ではそれほど問題
ないものの、高温になるとポリエチレングリコー
ルが流れ出てくる、つまり振動減衰性が低下して
くるという欠点があり、せいぜい40℃程度までの
領域において使用し得るにすぎない。 As such a high vibration damping composite material, the one described in, for example, Japanese Patent Laid-Open No. 113299/1983 is known. This conventional composite material is intended to improve the vibration damping properties of the composite material by mixing polyethylene glycol, which itself has high vibration damping properties, into the so-called matrix resin. However, although such conventional composite materials do not have much of a problem at temperatures around room temperature, they have the disadvantage that polyethylene glycol flows out at high temperatures, in other words, the vibration damping properties decrease, and at most the temperature range up to about 40 degrees Celsius It can only be used in
(ハ) この発明の目的
この発明の目的は、従来の複合材料の上記欠点
を解決し、高い振動減衰性をもち、かつより高温
でも使用することができる複合材料を提供するに
ある。(C) Purpose of the Invention The purpose of the present invention is to provide a composite material that solves the above-mentioned drawbacks of conventional composite materials, has high vibration damping properties, and can be used even at higher temperatures.
(ニ) この発明の構成
上記目的を達成するために、この発明において
は、末端基としてアミノ基またはカルボキシル基
をもつポリエチレングリコールを10〜40重量％含
むエポキシ樹脂と補強繊維からなることを特徴と
する振動減衰性複合材料が提供される。(d) Structure of the Invention In order to achieve the above object, the present invention is characterized by being made of an epoxy resin containing 10 to 40% by weight of polyethylene glycol having an amino group or a carboxyl group as a terminal group, and reinforcing fibers. A vibration damping composite material is provided.
この発明をさらに詳細に説明するに、この発明
の複合材料は、補強繊維と樹脂とを複合してな
る。 To explain this invention in more detail, the composite material of this invention is made by combining reinforcing fibers and resin.
上記補強繊維は、繊維強化プラスチツクの補強
繊維として通常用いられている炭素繊維、ガラス
繊維、有機高弾性繊維（たとえば、ポリアラミド
繊維）などの高強度、高弾性繊維である。なかで
も、炭素繊維が最も好ましく使用される。もつと
も、これらの補強繊維は異なる２種以上の繊維が
併用されてもよいものである。 The reinforcing fibers are high-strength, high-modulus fibers such as carbon fibers, glass fibers, and organic high-modulus fibers (eg, polyaramid fibers), which are commonly used as reinforcing fibers for fiber-reinforced plastics. Among them, carbon fiber is most preferably used. However, two or more different types of these reinforcing fibers may be used in combination.
また上記樹脂は、エポキシ樹脂と、末端基とし
てアミノ基またはカルボキシル基をもつポリエチ
レングリコール（以下、変性PEGという）から
なる。エポキシ樹脂は、ビスフエノールＡ型、脂
肪族型、フエノールノボラツク型など、いずれで
あつてもよい。また、変性PEGは、複合材料に
高い振動減衰性を与えるもので、エポキシ樹脂と
の相溶性が高い、分子量400〜10000程度のものが
好ましく使用される。さらに好ましくは、分子量
400〜6000のものが使用される。そのような変性
PEGの代表的例としては、アミノ基をもつもの
では三洋化成工業株式会社製“PEG4000DCA”
がカルボキシル基をもつものでは同社製“イオネ
ツトYB―400”などがある。 Further, the resin is composed of an epoxy resin and polyethylene glycol (hereinafter referred to as modified PEG) having an amino group or a carboxyl group as a terminal group. The epoxy resin may be of any type, such as bisphenol A type, aliphatic type, or phenol novolak type. Further, the modified PEG imparts high vibration damping properties to the composite material, and those having a molecular weight of about 400 to 10,000 and having high compatibility with the epoxy resin are preferably used. More preferably, the molecular weight
400 to 6000 are used. such degeneration
A typical example of PEG with an amino group is “PEG4000DCA” manufactured by Sanyo Chemical Industries, Ltd.
Among those with a carboxyl group, there is the company's "Ionet YB-400".
エポキシ樹脂に対する変性PEGの混入量は10
〜40重量％である。すなわち、10重量％未満では
高い振動減衰性を有する複合材料が得られない。
また、40重量％を越えると複合材料の剛性が著し
く低下し、使用に耐えなくなる。より好ましい混
入量は10〜25重量％である。 The amount of modified PEG mixed into the epoxy resin is 10
~40% by weight. That is, if it is less than 10% by weight, a composite material with high vibration damping properties cannot be obtained.
Moreover, if it exceeds 40% by weight, the rigidity of the composite material will decrease significantly, making it unusable. A more preferable amount is 10 to 25% by weight.
この発明の複合材料は、補強繊維と、所望量の
変性PEGを混入したエポキシ樹脂とを複合し、
次いでその複合体を100〜120℃に加熱して変性
PEGをエポキシ樹脂と結合し、以下、常法にし
たがつてエポキシ樹脂を硬化させることによつて
製造する。エポキシ樹脂の硬化温度は130〜180℃
である。もつとも、この発明においては、変性
PEGをエポキシ樹脂と結合した後に補強繊維と
複合してもよい。 The composite material of this invention combines reinforcing fibers and an epoxy resin mixed with a desired amount of modified PEG,
The complex is then heated to 100-120°C to denature it.
It is produced by bonding PEG with an epoxy resin and then curing the epoxy resin in a conventional manner. The curing temperature of epoxy resin is 130~180℃
It is. However, in this invention, denaturation
PEG may be combined with an epoxy resin and then composited with reinforcing fibers.
(ホ) この発明の効果
この発明の複合材料は、いわゆるマトリクス樹
脂として、変性PEG、つまり末端基としてアミ
ノ基またはカルボキシル基をもつポリエチレング
リコールを10〜40重量％含むエポキシ樹脂を使用
しているからして、高温で使用しても変性PEG
が流れ出ることがなく、高い振動減衰性を維持で
きる。しかも、強度や弾性率も従来の複合材料に
くらべて優るとも劣らない。そのため、この発明
の複合材料は、使用中に高温になる可能性があ
り、しかも高い振動減衰性が要求される用途に特
に適している。たとえば、カーステレオのスピー
カーボツクスの構成材料として使用すれば、炎天
下の高温の車内においても共振のない明瞭な音が
楽しめる。また、たとえばチエーンソーや電動ド
リルの柄に使用すると、モーターの加熱によつて
高温になつても振動が抑制され、振動による職業
病の防止に役立つ。さらに、人工衛星の部品に使
用すると、摩擦熱などが加わつても振動が抑制さ
れ、姿勢制御を正確に行えるようになる。さら
に、自動車や船舶などの構造材料として使用する
こともできる。もちろん、上述したスポーツ用途
や楽器用途に使用しても何ら差し支えない。(e) Effects of the invention The composite material of the invention uses an epoxy resin containing 10 to 40% by weight of modified PEG, that is, polyethylene glycol having an amino group or a carboxyl group as a terminal group, as a so-called matrix resin. Modified PEG even when used at high temperatures
There is no flow out, and high vibration damping performance can be maintained. Moreover, its strength and elastic modulus are comparable to those of conventional composite materials. Therefore, the composite material of the present invention is particularly suitable for applications that may reach high temperatures during use and require high vibration damping properties. For example, if it is used as a component of a car stereo speaker box, you can enjoy clear sound without resonance even in the hot car interior under the scorching sun. Furthermore, when used in the handles of chainsaws and electric drills, for example, vibrations are suppressed even when the motor heats up to high temperatures, helping to prevent occupational diseases caused by vibrations. Furthermore, when used in parts of artificial satellites, vibrations are suppressed even when frictional heat is applied, allowing for accurate attitude control. Furthermore, it can also be used as a structural material for automobiles, ships, etc. Of course, there is no problem in using it for sports or musical instruments as described above.
実施例 １
100ｇのエポキシ樹脂“エピコート”828（油化
シエルエポキシ株式会社製）に20ｇの変性PEG
“PEG4000DCA”（三洋化成工業株式会社製）を
加え、約120℃で約２時間加熱して変性PEGをエ
ポキシ樹脂と結合した後約70℃まで降温し、硬化
剤として３ｇのジシアンジアミド／Ｎ―３，４ジ
クロロフエニレンN′―ジメチルウレアを加え、
マトリクス樹脂を得た。Example 1 20g of modified PEG was added to 100g of epoxy resin “Epikoat” 828 (manufactured by Yuka Ciel Epoxy Co., Ltd.)
"PEG4000DCA" (manufactured by Sanyo Chemical Industries, Ltd.) was added and heated at about 120℃ for about 2 hours to bond the modified PEG with the epoxy resin, then the temperature was lowered to about 70℃, and 3g of dicyandiamide/N-3 was added as a curing agent. ,4 dichlorophenylene N'-dimethylurea was added,
A matrix resin was obtained.
次に、東レ株式会社製炭素繊維“トレカ”Ｔ―
300（ストランド数：3000本）を一方向に互に並行
かつシート状に引き揃えたものに上記マトリクス
樹脂を含浸した後、炭素繊維の方向を揃えて300
mm角に裁断した。 Next, Toray Industries, Inc.'s carbon fiber "Trading Card" T-
300 carbon fibers (number of strands: 3000) are arranged parallel to each other in one direction in a sheet shape, and then impregnated with the above matrix resin, the direction of the carbon fibers is aligned and 300
Cut into mm squares.
次に、上記裁断片を炭素繊維の方向を揃えて金
型内に３枚積層し、約10Kg/cm2の圧力を加えなが
ら約140℃で約２時間加熱してマトリクス樹脂を
硬化させ、炭素繊維の体積含有率が約60％であ
り、かつ厚みが２mmであるこの発明の複合材料を
得た。 Next, three of the above-mentioned cut pieces were stacked in a mold with the carbon fibers aligned in the same direction, and heated at about 140°C for about 2 hours while applying a pressure of about 10 kg/cm 2 to harden the matrix resin. A composite material of the present invention was obtained in which the volume content of fibers was approximately 60% and the thickness was 2 mm.
上記複合材料について、引張弾性率と、20℃、
440Hzにおける振動減衰係数と、変性PEGの流出
量を測定したところ、引張弾性率は約13000Kg/mm2
であり、振動減衰係数は約0.45×10-2であり、変
性PEGの流出量はほとんど零であつた。なお、
振動減衰係数は振動リード法によつて測定した。
また、変性PEGの流出量は、複合材料を沸騰水
に約20時間浸漬し、浸漬する前の重量Ｗと、浸漬
した後の重量Ｗから、式（Ｗ−ｗ）×100／Ｗによ
り求めた。つまり、変性PEGの流出量は、複合
材料を約100℃で使用した場合に相当する。 Regarding the above composite material, the tensile modulus and 20℃,
When we measured the vibration damping coefficient at 440Hz and the outflow amount of modified PEG, the tensile modulus was approximately 13000Kg/mm 2
The vibration damping coefficient was approximately 0.45×10 −2 , and the amount of denatured PEG leaked out was almost zero. In addition,
The vibration damping coefficient was measured by the vibration reed method.
In addition, the amount of outflow of modified PEG was determined by immersing the composite material in boiling water for about 20 hours and using the weight W before immersion and the weight W after immersion using the formula (W-w) x 100/W. . In other words, the amount of modified PEG flowing out corresponds to when the composite material is used at approximately 100°C.
実施例 ２
上記実施例１で使用したエポキシ樹脂100ｇに、
末端基としてカルボキシル基をもつ変性PEG（分
子量：約400）を20ｇ混入したほかは実施例１と
全く同様にしてこの発明の複合材料を得た。Example 2 To 100g of the epoxy resin used in Example 1 above,
A composite material of the present invention was obtained in exactly the same manner as in Example 1, except that 20 g of modified PEG (molecular weight: about 400) having a carboxyl group as a terminal group was mixed.
次に、上記各複合材料について、実施例１と同
様に引張弾性率、振動減衰係数、変性PEGの流
出量を測定したところ、引張弾性率は約13000Kg/
mm2であり、振動減衰係数は約0.40×10-2であり、
変性PEGの流出量はほとんど零であつた。 Next, for each of the above composite materials, the tensile modulus, vibration damping coefficient, and outflow amount of modified PEG were measured in the same manner as in Example 1, and the tensile modulus was approximately 13000 kg/
mm 2 and the vibration damping coefficient is approximately 0.40 × 10 -2 ,
The amount of denatured PEG leaked out was almost zero.
比較例
変性PEGの代わりに三洋化成工業株式会社製
ポリエチレングリコール“PEG4000”（分子量：
約4000）を使用したほかは実施例１と全く同様に
して、複合材料を得た。Comparative example Instead of modified PEG, polyethylene glycol “PEG4000” manufactured by Sanyo Chemical Industries, Ltd. (molecular weight:
A composite material was obtained in exactly the same manner as in Example 1, except that approximately 4000) was used.
この複合材料について実施例１と同様の試験を
したところ、引張弾性率は約13100Kg/mm2であり、
また振動減衰係数は約0.46×10-2で実施例１、２
のそれとそれほど変わらなかつた。しかし、ポリ
エチレングリコールの流出量は約５重量％もあつ
た。このことは、この複合材料を高温で使用する
とポリエチレングリコールが流出し、その分だけ
振動減衰性が低下してくることを示している。 When this composite material was tested in the same manner as in Example 1, the tensile modulus was approximately 13100 Kg/mm 2 ,
In addition, the vibration damping coefficient was approximately 0.46×10 -2 in Examples 1 and 2.
It wasn't that different from that. However, the amount of polyethylene glycol flowing out was about 5% by weight. This indicates that when this composite material is used at high temperatures, polyethylene glycol flows out, and the vibration damping properties decrease accordingly.
Claims (1)
をもつポリエチレングリコールを10〜40重量％含
むエポキシ樹脂と補強繊維からなることを特徴と
する振動減衰性複合材料。1. A vibration damping composite material comprising an epoxy resin containing 10 to 40% by weight of polyethylene glycol having an amino group or carboxyl group as a terminal group and reinforcing fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5116584A JPS60197723A (en) | 1984-03-19 | 1984-03-19 | Composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5116584A JPS60197723A (en) | 1984-03-19 | 1984-03-19 | Composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60197723A JPS60197723A (en) | 1985-10-07 |
| JPS6320449B2 true JPS6320449B2 (en) | 1988-04-27 |
Family
ID=12879207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5116584A Granted JPS60197723A (en) | 1984-03-19 | 1984-03-19 | Composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60197723A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0468546U (en) * | 1990-10-25 | 1992-06-17 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0333297A (en) * | 1988-04-01 | 1991-02-13 | Sanyo Kokusaku Pulp Co Ltd | Primarily treated base paper for electrical insulating laminated board, production thereof and electrical insulating laminated board using the same |
| CN115010904B (en) * | 2022-07-04 | 2023-12-19 | 青岛爱尔家佳新材料股份有限公司 | Organosilicon modified aqueous epoxy emulsion, aqueous epoxy primer and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3639928A (en) * | 1970-11-27 | 1972-02-08 | Jefferson Chem Co Inc | Accelerator combination for epoxy curing |
| GB1577093A (en) * | 1977-06-30 | 1980-10-15 | Texaco Development Corp | Bis ureide of a polyoxyalkylene polyamine as an epoxy additive |
| JPS5491598A (en) * | 1977-12-27 | 1979-07-20 | Texaco Development Corp | Hardener for epoxy resin and rapidly hardening method of said epoxy resin |
-
1984
- 1984-03-19 JP JP5116584A patent/JPS60197723A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0468546U (en) * | 1990-10-25 | 1992-06-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60197723A (en) | 1985-10-07 |
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