JPS61287935A - Vibration-damping material - Google Patents
Vibration-damping materialInfo
- Publication number
- JPS61287935A JPS61287935A JP12945885A JP12945885A JPS61287935A JP S61287935 A JPS61287935 A JP S61287935A JP 12945885 A JP12945885 A JP 12945885A JP 12945885 A JP12945885 A JP 12945885A JP S61287935 A JPS61287935 A JP S61287935A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- fiber
- parts
- liquid composition
- mold
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/3605—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by their material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Reinforced Plastic Materials (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、動力機器の騒音を低減し、あるいは精密機器
を外部の振動から保護する制振材料に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vibration damping material that reduces the noise of power equipment or protects precision equipment from external vibrations.
動力機器の騒音の低減に加え、近年、精密加工、精密測
定等の要求が高まり１種々の制振材料が提案されている
０例えば（イ）構造材料に、ゴムシート、軟質プラスチ
ックシート等を接着剤により貼りつける方法、（ロ）溶
状又は溶液状のエポキシ樹脂、ポリウレタン樹脂、不飽
和ポリエステル樹脂等の樹脂とマイカ粉、ガラスフレー
ク等の鱗片状フィラーを配合してなる塗料を構造材料に
塗布する方法、（ハ）金属繊維を不・飽和ポリエステル
樹脂、エポキシ樹脂等に混合し成形する方法等が提案さ
れている。In addition to reducing noise from power equipment, demands for precision machining and precision measurement have increased in recent years.1 Various damping materials have been proposed.0 For example, (a) bonding rubber sheets, soft plastic sheets, etc. to structural materials. (b) Applying a paint made by blending resin such as dissolved or liquid epoxy resin, polyurethane resin, or unsaturated polyester resin with scaly filler such as mica powder or glass flake to the structural material. (c) A method of mixing metal fibers with unsaturated polyester resin, epoxy resin, etc. and molding them has been proposed.
しかしくイ）の方法においては複雑な面形状を有する成
形体への適用は困難であり、（ロ）の方法においては塗
装の厚みムラ、特に垂直面の塗料タレによる厚みムラの
発生による制振性能のバラつきが大きく、又（ハ）の方
法は曲面の形成は容易であるが、成形体の重量が増大す
るという欠点を有し、又、低温時の制振性が不十分であ
る。However, method (a) is difficult to apply to molded bodies with complex surface shapes, and method (b) is difficult to apply to molded bodies with complex surface shapes, and method (b) damps vibrations due to uneven coating thickness, especially due to paint dripping on vertical surfaces. There is a large variation in performance, and although method (c) allows easy formation of curved surfaces, it has the drawback of increasing the weight of the molded product and has insufficient vibration damping properties at low temperatures.
このように従来技術は一長一短があり、いかなる形状に
おいても制振性を安定して発現し、かつ経済的で生産性
にすぐれ、又、低温域を含めた広い温度範囲において良
好な制振性を有する制振材料の開発が望まれている。In this way, the conventional technology has advantages and disadvantages; it stably exhibits damping properties in any shape, is economical and has excellent productivity, and also exhibits good damping properties over a wide temperature range including low temperatures. It is desired to develop vibration damping materials that have the same characteristics.
本発明は例えば０〜１２０℃の広い温度領域においてす
ぐれた制振性を有し、又いかなる形状においても制振性
を安定して発現しうる、成形加工性にすぐれた制振材料
を提供することを目的とする。The present invention provides a vibration damping material that has excellent damping properties over a wide temperature range of, for example, 0 to 120°C, can stably exhibit damping properties in any shape, and has excellent moldability. The purpose is to
本発明の構成は、（Ａ）一分子中に２個以上のラジカル
重合性不飽和基を有し、且つ炭素数４以上のアルキレン
基又はアルキレンエーテル基を含有する不飽和樹脂３０
〜１００重量％、（Ｂ）ラジカル重合性単量体０〜７０
重量％及び（Ｃ）ラジカル重合開始剤を（Ａ）＋（Ｂ）
１００重量部に対し０．３〜３．０重量部を加えてな
る液状組成物を、長さ５〜６０ｍｍの無機又は有機の繊
維状強化材に含浸・増粘して繊維含有コンパウンドを形
成せしめ、該コンパウンドを金型内で加熱、加圧、成形
硬化してなる、該硬化物のガラス移転温度が３０℃以下
であることを特徴とする制振材料である。The structure of the present invention includes (A) an unsaturated resin 30 having two or more radically polymerizable unsaturated groups in one molecule and containing an alkylene group or an alkylene ether group having 4 or more carbon atoms;
~100% by weight, (B) radically polymerizable monomer 0-70
Weight% and (C) radical polymerization initiator (A) + (B)
A liquid composition prepared by adding 0.3 to 3.0 parts by weight to 100 parts by weight is impregnated and thickened into an inorganic or organic fibrous reinforcing material having a length of 5 to 60 mm to form a fiber-containing compound. , a vibration damping material obtained by heating, pressurizing, molding and curing the compound in a mold, and having a glass transition temperature of the cured product of 30° C. or less.
上記（Ａ）の不飽和樹脂は、ラジカル重合性不飽和基を
有する不飽和二塩基酸、アクロイル基、メタクリロイル
基、アリル基を有する化合物及び炭素数４以上のアルキ
レン基又はアルキレンエーテル基を含有するアルコール
、グリコール、カルボン酸、インシアネート化合物等を
原料とすることにより、公知の方法によって製造する巳
とが出来る。例えば
（イ）無水マレイン酸、フマール酸、イタコン酸の如き
不飽和二塩基酸類または該不飽和二塩基酸類とアジピン
酸、セバシン酸、アゼライン酸、ドデカンニ酸、ヘキサ
デカンニ酸、アイコサツニ醜の如き脂肪族二塩基酸類と
の混合物と、ブタンジオール、ベンタンジオール、ヘキ
サンジオール、ジエチレングリコール、ジプロピレング
リコール、ポリエチレングリコール、ポリプロピレング
リコール、ポリテトラメチレンクリコールの如き多価ア
ルコール類とのエステル化反応によって得る方法（この
場合硬化物のガラス転移点が３０℃をこえない範囲にお
いてフタル酸の如き芳香族二塩基酸或いはエチレングリ
コール、プロピレングリコール、グリセリン、トリメチ
ロールプロパンの如き上記以外の多価アルコール等を併
用してもよい、）（ロ）上記ニのべた炭素数４以上のア
ルキレン基又はアルキレンエーテル基を含有する多価ア
ルコール化合物又はこれ等を原料としたヒドロキシ末端
の飽和又は不飽和ポリエステル樹脂とアクリル酸、メタ
クリル酸とのエステル化反応、又はアクリル酸、メタク
リル酸エステルとのエステル交換反応によって分子末端
にアクリロイル基又はメタクリロイル基を導入して得る
方法（ハ）上記の炭素数４以上のアルキレン基又はアル
キレンエーテル基を有する多価カルボン酸化合物、又は
これらを原料としたカルボキシル末端の飽和又は不飽和
ポリエステル樹脂とアクリル酸、メタクリル酸のヒドロ
キシアルキルエステル或いはアリルアルコールのエステ
ル化によって分子末端にアクリロイル基、メタクリロイ
ル基又はアリル基を導入して得る方法（ニ）（ロ）と同
様な末端ヒドロキシ化合物とアクリル酸、メタクリル酸
のヒドロキシアルキルエステル及びジイソシアネート化
合物を重付加反応して得る方法
（ホ）炭素数４以上のアルキル基又はアルキレン基を含
有するジエボキシド化合物にアクリル酸、メタクリル酸
の如き不飽和モノカルボン酸又は、上記した不飽和二塩
基酸を付加反応して得る方法
等がある。The unsaturated resin (A) above contains an unsaturated dibasic acid having a radically polymerizable unsaturated group, a compound having an acroyl group, a methacryloyl group, an allyl group, and an alkylene group or alkylene ether group having 4 or more carbon atoms. By using alcohols, glycols, carboxylic acids, incyanate compounds, etc. as raw materials, it can be produced by known methods. For example, (a) unsaturated dibasic acids such as maleic anhydride, fumaric acid, and itaconic acid, or unsaturated dibasic acids such as maleic anhydride, fumaric acid, and itaconic acid, and aliphatic acids such as adipic acid, sebacic acid, azelaic acid, dodecanedioic acid, hexadecanedioic acid, and icosaconic acid; A method of obtaining by esterification reaction of a mixture with dibasic acids and polyhydric alcohols such as butanediol, bentanediol, hexanediol, diethylene glycol, dipropylene glycol, polyethylene glycol, polypropylene glycol, polytetramethylene glycol (this method) In this case, an aromatic dibasic acid such as phthalic acid or a polyhydric alcohol other than the above such as ethylene glycol, propylene glycol, glycerin, trimethylolpropane, etc. may be used in combination within the range where the glass transition point of the cured product does not exceed 30°C. (b) A polyhydric alcohol compound containing an alkylene group or an alkylene ether group having 4 or more carbon atoms as mentioned above, or a hydroxy-terminated saturated or unsaturated polyester resin made from these, and acrylic acid or methacrylic acid. A method in which an acryloyl group or a methacryloyl group is introduced at the end of the molecule by an esterification reaction with acrylic acid or a methacrylic acid ester (c) The above-mentioned alkylene group or alkylene ether group having 4 or more carbon atoms acryloyl group, methacryloyl group, or allyl group at the molecular end by esterifying a polyhydric carboxylic acid compound having a polyhydric carboxylic acid compound, or a carboxyl-terminated saturated or unsaturated polyester resin made from these as a raw material, and a hydroxyalkyl ester or allyl alcohol of acrylic acid or methacrylic acid. (d) A method obtained by polyaddition reaction of a terminal hydroxy compound similar to (b) with a hydroxyalkyl ester of acrylic acid or methacrylic acid and a diisocyanate compound (e) An alkyl group having 4 or more carbon atoms or There is a method of obtaining it by adding an unsaturated monocarboxylic acid such as acrylic acid or methacrylic acid or the above-mentioned unsaturated dibasic acid to a dieboxide compound containing an alkylene group.
これ等の方法は併用すること・も可能であり、別々の方
法によって得られた不飽和樹脂を混合使用することも可
能である。These methods can be used in combination, and unsaturated resins obtained by different methods can also be used in combination.
上記の不飽和樹脂における炭素数４以上のアルキレン基
又はアルキレンエーテル基の含有は、広い温度範囲にお
ける制振性の付与に必須であり、液状組成物中の該構造
の含有が２０重量％以上が好ましく、特に２５〜７０重
量％が好ましい。The content of an alkylene group or alkylene ether group having 4 or more carbon atoms in the above unsaturated resin is essential for imparting vibration damping properties in a wide temperature range, and the content of this structure in the liquid composition is 20% by weight or more. Preferably, 25 to 70% by weight is particularly preferred.
本発明に用いられるラジカル重合性単量体は上記不飽和
樹脂が、ｔａ維状状強化剤十分に含浸するための希釈剤
であると共に不飽和樹脂とラジカル的に反応し、硬化物
を形成するいわゆる反応性希釈剤である０例えばスチレ
ン、ビニトルエン、パラメチルスチレン等の芳香族単量
体、メタクリル酸メチル、メタクリル酸ブチル等のメタ
クリル酸エステル類が好んで用いられる。ラジカル重合
性単量体は前記した不飽和樹脂の粘度が十分低い場合に
は用いなくてもよいが通常５重量％以上さらに好ましく
は１０重量％以上が使用される。使用量が７０重量部を
こえる場合には硬化物がガラス転移温度を３０℃以下に
制御することが困難である。The radically polymerizable monomer used in the present invention serves as a diluent for the unsaturated resin to sufficiently impregnate the TA fibrous reinforcing agent, and also reacts radically with the unsaturated resin to form a cured product. So-called reactive diluents, such as aromatic monomers such as styrene, vinyltoluene and paramethylstyrene, and methacrylic acid esters such as methyl methacrylate and butyl methacrylate are preferably used. The radically polymerizable monomer may not be used if the viscosity of the unsaturated resin described above is sufficiently low, but it is usually used in an amount of 5% by weight or more, more preferably 10% by weight or more. When the amount used exceeds 70 parts by weight, it is difficult to control the glass transition temperature of the cured product to 30° C. or lower.
本発明に用いるラジカル重合開始剤は成形条件、貯蔵安
定性等により適宜選択される０例えばベンゾイルパーオ
キサイド、ラウロイルパーオキサイド、ターシャリブチ
ルパーオクトエート、ターシャリープチルパーペンソエ
ート、ジクミルパーオキサイド、 ｉｌビス（ターシャ
リ−ブチルパーオキシ）３，５，５）リメチルシクロヘ
ギサノン等がある。ラジカル重合開始剤の使用量は前述
の不飽和樹脂と、ラジカル重合性単量体との合計量１０
０重量部に対し０．３〜３．０重量部が好ましい。The radical polymerization initiator used in the present invention is appropriately selected depending on molding conditions, storage stability, etc. For example, benzoyl peroxide, lauroyl peroxide, tert-butyl peroctoate, tert-butyl perpensoate, dicumyl peroxide, Examples include ilbis(tert-butylperoxy)3,5,5)limethylcyclohegisanone. The amount of radical polymerization initiator used is the total amount of the above-mentioned unsaturated resin and radically polymerizable monomer: 10
It is preferably 0.3 to 3.0 parts by weight relative to 0 parts by weight.
０．３重量部未満では、重合開始剤としての機能が発揮
されず、３．０重量部をこえると１重合開始剤としての
効果は飽和する。If the amount is less than 0.3 parts by weight, the function as a polymerization initiator will not be exhibited, and if it exceeds 3.0 parts by weight, the effect as a polymerization initiator will be saturated.
本発明の液状組成物を調製するには、前記した方法によ
って得られた不飽和樹脂３０〜１００重量％に重合禁止
剤を不飽和樹脂とラジカル重合単量体の合計量１００重
量部当り ０．００５〜０．１重量部加え、前記したラ
ジカル重合性単量体０〜７．０重量％を加え、必要によ
り加熱して混合溶解する。冷却後、不飽和樹脂とラジカ
ル重合性単量体の合計量１００重量部に対しラジカル重
合開始剤を０．３〜３．０重量部加え液状組成物とする
。To prepare the liquid composition of the present invention, a polymerization inhibitor is added to 30 to 100% by weight of the unsaturated resin obtained by the method described above, per 100 parts by weight of the total amount of the unsaturated resin and the radically polymerized monomer. 0.005 to 0.1 part by weight, and 0 to 7.0 weight % of the radically polymerizable monomer described above are added, and if necessary, the mixture is mixed and dissolved by heating. After cooling, 0.3 to 3.0 parts by weight of a radical polymerization initiator is added to 100 parts by weight of the total amount of the unsaturated resin and radically polymerizable monomer to form a liquid composition.
ここに用いる重合禁止剤は、液状組成物を調製する間、
さらには得られた液状組成物を繊維状強化材に含浸させ
るまでの間に、好ましくない重合が起ることを防止する
ためのもので、公知のメチルパラキノンが例としてあげ
られる。The polymerization inhibitor used here is used during the preparation of the liquid composition.
Furthermore, it is used to prevent undesirable polymerization from occurring before the obtained liquid composition is impregnated into the fibrous reinforcing material, and the well-known methyl paraquinone can be cited as an example.
本発明覧ユ用いる繊維状強化材としては例えば、ガラス
繊維、炭素繊維、アルミナ繊維、ロックウール、ポリエ
ステルｍａｎ、レーヨン繊維、ナイロン繊維、芳香族ポ
リアミド繊維等が用いられる。これら、繊維状強化材は
繊維の太さが０．０Ｏ２ｍｕｍ〜０．５ ＋ｓ膳好まし
くは ０．００５■ｍ〜０．１鵬■の長さ５〜８０ｍｍ
の短繊維で用いられる。繊維の長さが５ｆｆ１ｍ以下で
は強化効果が希小であり又６０鳳■以上では成形時のコ
ンパウンド流動が均一に行われず均質な成形物が得難い
。Examples of the fibrous reinforcing material used in the present invention include glass fiber, carbon fiber, alumina fiber, rock wool, polyester fiber, rayon fiber, nylon fiber, and aromatic polyamide fiber. These fibrous reinforcing materials have a fiber thickness of 0.00mm to 0.5 mm, preferably a length of 0.005 mm to 0.1 mm, and a length of 5 to 80 mm.
It is used in short fibers. If the length of the fiber is less than 5 mm, the reinforcing effect will be small, and if it is greater than 60 mm, the compound will not flow uniformly during molding, making it difficult to obtain a homogeneous molded product.
本発ＦＩＡノ繊維含有コンパウンドは、前記の粘度が通
常２００ポアズ以下の液状組成物中に、前記の繊維状強
化材を混入混合し、ついで増粘剤を添加混合しで得られ
る。しかして該コンパウンド中の繊維状強化材の含有量
は１０〜５０重量％が好ましい。The FIA fiber-containing compound of the present invention is obtained by mixing the above-mentioned fibrous reinforcing material into the above-mentioned liquid composition having a viscosity of usually 200 poise or less, and then adding and mixing a thickener. Therefore, the content of fibrous reinforcing material in the compound is preferably 10 to 50% by weight.
本発明の繊維含有コンパウンドは５００００〜１５００
０００ポアズ／２５℃の粘度であることが好ましい、粘
度が５００００ポアズ／２５℃以下では取扱い作業性が
悪く又１５０００００ポアズ／２５℃以上では成形時金
型内でのコンパウンド流動が悪くなり安定した賦形が出
来ないからである。コンパウンド粘度を上記範囲に調整
するためには通常、酸化マグネシウム、水酸化マグネシ
ウム、アルミニウムアルコラード、トリレンジインシア
ネート、ジフェニルメタン４．４°ジインシアネート等
の増粘剤を用いることで容易に実現することが出来る。The fiber-containing compound of the present invention has a fiber content of 50,000 to 1,500
A viscosity of 000 poise/25°C is preferable. If the viscosity is less than 50,000 poise/25°C, the handling efficiency will be poor, and if it is more than 1,500,000 poise/25°C, the fluidity of the compound in the mold during molding will be poor, making it difficult to form a stable product. This is because it cannot be shaped. Adjustment of the compound viscosity within the above range is usually easily achieved by using a thickener such as magnesium oxide, magnesium hydroxide, aluminum alcolade, tolylene diincyanate, diphenylmethane 4.4° diincyanate, etc. I can do it.
なお本発明の繊維含有コンパウンドには炭酸カルシウム
、水酸化アルミニウム、硫酸バリウム、タルク等の充填
材、ポリエチレン、ポリスチレン、ポリ酢酸ビニル等の
熱可塑性低収縮添加剤、着色剤、ｆｌｌＩ型剤等を添加
してもよい。The fiber-containing compound of the present invention may contain fillers such as calcium carbonate, aluminum hydroxide, barium sulfate, and talc, thermoplastic low-shrinkage additives such as polyethylene, polystyrene, and polyvinyl acetate, colorants, flI type agents, and the like. You may.
上記の粘度を有するコンパウンドは通常８０℃〜１６０
℃に加熱された金型を用い１０〜２００Ｋｇ／ｃｍ２の
圧力で成形されることにより本発明の制振材が得られる
。この際、上記のコンパウンドと同時に織布又は不織布
に（Ａ）、（Ｂ）、（Ｃ）よりなる液状組成物を含浸せ
しめた材料を積層、成形して用いてもよい。Compounds with the above viscosity are usually 80°C to 160°C.
The damping material of the present invention is obtained by molding at a pressure of 10 to 200 kg/cm2 using a mold heated to .degree. At this time, a material obtained by impregnating a woven or nonwoven fabric with a liquid composition consisting of (A), (B), and (C) may be laminated and molded simultaneously with the above-mentioned compound.
上記のごとくして得られた制振材料のガラス転移温度は
３０℃以下であることが必要である。３０℃を超えると
低温領域の制振性が不充分となって適当でなく、特に−
１０℃〜２５℃の範囲にあることがこ好ましい。かかる
転移温度は（Ａ）、（Ｂ）の重量割合の選択によって得
られる。It is necessary that the glass transition temperature of the damping material obtained as described above is 30° C. or lower. If the temperature exceeds 30°C, the vibration damping properties in the low temperature region will be insufficient, making it unsuitable.
Preferably, the temperature is in the range of 10°C to 25°C. Such a transition temperature can be obtained by selecting the weight proportions of (A) and (B).
以下実施例によってされに詳細に述べる。Examples will be described in detail below.
実施例−１
無水マレイン酸１モル、アジピン酸１モル、１．８ヘキ
サンジオール２．２モルを反応して得られた不飽和ポリ
エステル７０重量部に重合禁止剤メチルパラキノン０．
０２重量部、スチレン３０重量部およびラジカル重合開
始剤としてターシャリブチルパーベンゾエート１．０重
量部を加え、混合溶解して本発明の液状組成物ｌを得た
。Example-1 70 parts by weight of an unsaturated polyester obtained by reacting 1 mole of maleic anhydride, 1 mole of adipic acid, and 2.2 moles of 1.8 hexanediol was added with 0.0 parts by weight of a polymerization inhibitor, methyl paraquinone.
02 parts by weight, 30 parts by weight of styrene, and 1.0 parts by weight of tert-butyl perbenzoate as a radical polymerization initiator were added and mixed and dissolved to obtain a liquid composition 1 of the present invention.
本組成物中のアルキレン基の含有量は表−１に示す、さ
らに本組成物を１４０℃で硬化せしめ、硬化物のガラス
転移温度をＴＭＡ法で測定し、同じく表−１に示した。The content of alkylene groups in this composition is shown in Table 1. Furthermore, this composition was cured at 140°C, and the glass transition temperature of the cured product was measured by the TMA method, and the results are also shown in Table 1.
次に液状組成物ｌを用い、表−２に示す諸材料および重
量割合で繊維含浸コンパウンドを調製し２５℃における
その粘度を測定し５００，０００ポアズの値を得た。Next, using liquid composition 1, a fiber-impregnated compound was prepared using the various materials and weight ratios shown in Table 2, and its viscosity at 25°C was measured to obtain a value of 500,000 poise.
さらに該コンパウンドを、金型を用い成形圧力１００Ｋ
ｇ／ａｍ” 、金型温度１４０℃、成形時間５分の条件
にて成形を行い、厚み３厘層の板状の本発明の制振材料
を得た。この成形板を巾１０ｍｍ、長さ２５０１■に切
断し、制振特性測定用サンプルとした。Furthermore, the compound was molded using a mold at a pressure of 100K.
g/am", mold temperature 140°C, and molding time 5 minutes to obtain a plate-shaped vibration damping material of the present invention with a thickness of 3 layers. This molded plate was 10 mm wide and 5 minutes long. It was cut to a size of 2501 cm and used as a sample for measuring vibration damping characteristics.
制振特性は、ドイツ国プリニルケアー社製Ｂ＆に複素粘
弾性測定装置にて測定した０周波数５００Ｈｚで温度を
変えて得た損失係数（ηｃｏｍｂ）の値を表−３および
第１図に示した。As for the vibration damping properties, the values of loss coefficient (ηcomb) obtained by changing the temperature at a zero frequency of 500 Hz are shown in Table 3 and FIG.
実施例−２
無水マレイン酸１モル、アジピン酸１モル、ジエチレン
グリコール２．２モルを反応して得られた不飽和ポリエ
ステルに更にヘキサメチレンジイソネート０．２モルを
反応したウレタン化不飽和ポリエステル６５重量部に重
合禁止剤メチルパラキノン０．０２重量部、スチレン３
５重量部およびラジカル重合開始剤としてターシャリブ
チルパーベンゾエート１．０重量部を加え、混合溶解し
て本発明の液状組成物２を得た。Example-2 Urethane unsaturated polyester 65 obtained by reacting 1 mol of maleic anhydride, 1 mol of adipic acid, and 2.2 mol of diethylene glycol to an unsaturated polyester obtained by further reacting 0.2 mol of hexamethylene diisonate. 0.02 parts by weight of polymerization inhibitor methyl paraquinone, 3 parts by weight of styrene
5 parts by weight and 1.0 parts by weight of tert-butyl perbenzoate as a radical polymerization initiator were added and mixed and dissolved to obtain a liquid composition 2 of the present invention.
本組成物中のアルキレン基およびアルキレンエーテル基
の含有量は表−１に示す、さらに本組成物を １００℃
で硬化せしめ、硬化物のガラス転移温度をＴＭＡ法で測
定し、同じく表−１に示した。The contents of alkylene groups and alkylene ether groups in this composition are shown in Table 1.
The glass transition temperature of the cured product was measured by the TMA method and is also shown in Table 1.
次に液状組成物２を用い１表−２に示す諸材料および重
量割合で繊維含浸コンパウンドを調製し２５℃における
その粘度を測定し４５０，０００ポアズの値を得た。Next, a fiber-impregnated compound was prepared using liquid composition 2 using the materials and weight ratios shown in Table 1-2, and its viscosity at 25°C was measured to obtain a value of 450,000 poise.
さらに該コンパウンドを、金型を用い成形圧力１００Ｋ
ｇ／ａｍ２．金型温度１４０℃、成形時間５分の条件に
て成形を行い、厚み３ｍｍの成形板状の本発明の制振材
料を得た。この成形板を巾１０腸層、長さ２５０■に切
断し、制振特性測定用サンプルとし実施例１と同様に損
失係数を測定して表−３および第１図に示した。Furthermore, the compound was molded using a mold at a pressure of 100K.
g/am2. Molding was performed under the conditions of a mold temperature of 140° C. and a molding time of 5 minutes to obtain a vibration damping material of the present invention in the form of a molded plate with a thickness of 3 mm. This molded plate was cut into a piece with a width of 10 layers and a length of 250 cm, and was used as a sample for measuring vibration damping characteristics.The loss coefficient was measured in the same manner as in Example 1, and the results are shown in Table 3 and FIG.
実施例−３
三官能ポリプロピレングリコール（分子量７００）１モ
ル、ヒドロキシエチルメタクリレート３モル、ヘキサメ
チレンジイソネート３モルを反応して得られた不飽和ポ
リウシタフ６０重量部Ｃ二重合禁止剤メチルパラキノン
０．０２重量部、スーＦ−ルン２０重量部、メタクリル
醸ブチル２０重量部およびラジカル重合開始剤としてタ
ーシャリブチルパーベンゾエートｉ、ｏ重量部を加え、
混合溶解して本発明の液状組成物３を得た。Example-3 60 parts by weight of unsaturated polyurethane obtained by reacting 1 mole of trifunctional polypropylene glycol (molecular weight 700), 3 moles of hydroxyethyl methacrylate, and 3 moles of hexamethylene diisonate C polymerization inhibitor methyl paraquinone 0 02 parts by weight, 20 parts by weight of Sue F-run, 20 parts by weight of methacrylic butyl and tert-butyl perbenzoate i, o parts by weight as a radical polymerization initiator,
The liquid composition 3 of the present invention was obtained by mixing and dissolving.
本組成物中のアルキレン基の含有量は表−１に示す、さ
らに本組成物を１４０”Ｏで硬化せしめ、硬化物のガラ
ス転移温度をＴＭＡ法で測定し、同じく表−１に示した
。The content of alkylene groups in this composition is shown in Table 1. Furthermore, this composition was cured at 140"O, and the glass transition temperature of the cured product was measured by the TMA method, which is also shown in Table 1.
次に液状組成物３を用い、表−２に示す諸材料および重
量割合で繊維含浸コンパウンドを調製し２５℃における
その粘度を測定し４００，０００ポアズの値を得た。Next, using liquid composition 3, a fiber-impregnated compound was prepared using the various materials and weight ratios shown in Table 2, and its viscosity at 25°C was measured to obtain a value of 400,000 poise.
さらに該コンパウンドを、金型を用い成形圧力１００Ｋ
ｇ／ｃｍ１．金型温度１４０℃、成形時間５分の条件に
て成形を行い、厚み３■の板状の本発明の制振材料を得
た。この成形板を巾１０■層、長さ２５０℃腸に切断し
、制振特性測定用サンプルとし実施例１と同様に損失係
数を測定して表−３および第１図に示した。Furthermore, the compound was molded using a mold at a pressure of 100K.
g/cm1. Molding was carried out under the conditions of a mold temperature of 140° C. and a molding time of 5 minutes to obtain a plate-shaped vibration damping material of the present invention with a thickness of 3 cm. This molded plate was cut into pieces having a width of 10 cm and a length of 250 DEG C., and used as samples for measuring damping characteristics.The loss coefficient was measured in the same manner as in Example 1, and the results are shown in Table 3 and FIG.
比較例−１
無水マレイン酸１．２モル、無水フタル９９０．８モル
、プロピレングリコール１．０３モル、ジエチレングリ
コール１．０３モルを反応して得られた不飽和ポリエス
テル６０重量部に重合禁止剤メチルパラキノン０．０２
重量部、スチレン４０重量部およびラジカル重合開始剤
としてターシャリブチルパーベンゾニー） １．０重
量部を加え、混合溶解して液状組成物４を得た。Comparative Example-1 60 parts by weight of an unsaturated polyester obtained by reacting 1.2 mol of maleic anhydride, 990.8 mol of phthalic anhydride, 1.03 mol of propylene glycol, and 1.03 mol of diethylene glycol was added with the polymerization inhibitor methyl para Quinone 0.02
40 parts by weight of styrene and 1.0 parts by weight of tert-butylperbenzony as a radical polymerization initiator were added and mixed and dissolved to obtain Liquid Composition 4.
本組成物中のアルキレンエーテル基の含有量は表−１に
示す。さらに本組成物を１４０℃で硬化せしめ、硬化物
のガラス転移温度をＴＭＡ法で測定し、同じく表−１に
示した。The content of alkylene ether groups in this composition is shown in Table-1. Furthermore, this composition was cured at 140°C, and the glass transition temperature of the cured product was measured by the TMA method, which is also shown in Table 1.
次に液状組成物４を用い、表−２に示す諸材料および重
量割合で繊維含浸コンパウンドを調製し２５℃における
その粘度を測定し７００，０００ポアズの値を得た。Next, using liquid composition 4, a fiber-impregnated compound was prepared using the various materials and weight ratios shown in Table 2, and its viscosity at 25°C was measured to obtain a value of 700,000 poise.
さらに該コンパウンドを、金型を用い成形圧力１００Ｋ
ｇ／ｃｍ１．金型温度１４０℃、成形時間５分の条件に
て成形を行い、厚み３■■の成形板を作成した。この成
形板を巾１０■■、長さ２５０鵬腸に切断し、制振特性
測定用サンプルとし実施例１と同様に損失係数を測定し
て表−３および第１図に示した。Furthermore, the compound was molded using a mold at a pressure of 100K.
g/cm1. Molding was carried out under the conditions of a mold temperature of 140° C. and a molding time of 5 minutes to produce a molded plate with a thickness of 3 mm. This molded plate was cut into pieces of 10 mm wide and 250 mm long, and used as samples for measuring damping characteristics.The loss coefficient was measured in the same manner as in Example 1, and the results are shown in Table 3 and FIG.
比較例−２
無水マレイン酸１．６モル、イソフタルｆｉ ０．４モ
ル、プロピレンゲルコール１．０４モル、ネオペンチル
グリコール１．０４モルを反応して得られた不飽和ポリ
エステル６５重量部に重合禁止剤メチルパラギノン０．
０１重量部、スチレン４５重量部およびラジカル重合開
始剤としてターシャリブチルパーベンゾエート１．０重
量部を加え、混合溶解して液状組成物５を得た。Comparative Example-2 65 parts by weight of an unsaturated polyester obtained by reacting 1.6 mol of maleic anhydride, 0.4 mol of isophthalic fi, 1.04 mol of propylene gelcol, and 1.04 mol of neopentyl glycol was polymerized. agent methyl paraginone 0.
01 parts by weight, 45 parts by weight of styrene, and 1.0 parts by weight of tert-butyl perbenzoate as a radical polymerization initiator were added and mixed and dissolved to obtain Liquid Composition 5.
本組成物中にはアルキレン基又はアルキレンエーテル基
は含有しない、さらに本組成物を １４０℃で硬化せし
め、硬化物のガラス転移温度をＴＭＡ法で測定し、同じ
く表−１に示した。This composition does not contain any alkylene group or alkylene ether group. Furthermore, this composition was cured at 140°C, and the glass transition temperature of the cured product was measured by the TMA method and is also shown in Table 1.
次に液状組成物５を用い、表−２に示す諸材料および重
量割合で繊維含浸コンパウンドを調製し２５℃における
その粘度を測定し８５０．０００ポアズの値を得た。Next, using liquid composition 5, a fiber-impregnated compound was prepared using the various materials and weight ratios shown in Table 2, and its viscosity at 25°C was measured to obtain a value of 850.000 poise.
さらに該コンパウンドを、金型を用い成形圧力１００Ｋ
ｇ／ｃｍ” 、金型温度１４０℃、成形時間５分の条件
にて成形を行い、厚み３層冒の成形板を作成した。この
成形板を巾１０層鵬、長さ２５０■■に切断し、制振特
性測定用サンプルとし実施例１と同様に損失係数を測定
して表−３および第１図に示した。Furthermore, the compound was molded using a mold at a pressure of 100K.
A molded plate with a thickness of 3 layers was created by molding at a mold temperature of 140°C and a molding time of 5 minutes. This molded plate was cut into a width of 10 layers and a length of 250 mm. The loss coefficient was measured as a sample for measuring damping characteristics in the same manner as in Example 1, and the results are shown in Table 3 and FIG.
以上のように実施例に示した本発明の制振材料は０〜１
２０℃の温度領域で十分制振効果が有ることが確認され
た。As mentioned above, the vibration damping material of the present invention shown in the examples is 0 to 1
It was confirmed that there is a sufficient vibration damping effect in the temperature range of 20°C.
以上詳細に説明したように、本発明により０〜１２０℃
の広い温度領域においてすぐれた制振性を有し、かつ任
意の曲面を宥する形状の制振材料を容易にうることがで
きる。As explained in detail above, according to the present invention, the
It is possible to easily obtain a damping material that has excellent damping properties over a wide temperature range and has a shape that accommodates any curved surface.
第１図は本発明の制振材料３種および比較成形品２種の
制振特性を損失係数と温度との関係として示した図であ
る。
特許出願人 三井東圧化学株式会社
横浜ゴム株式会社FIG. 1 is a diagram showing the damping characteristics of three kinds of damping materials of the present invention and two comparative molded products as a relationship between loss coefficient and temperature. Patent applicant Mitsui Toatsu Chemical Co., Ltd. Yokohama Rubber Co., Ltd.
Claims (1)
基を有し、且つ炭素数４以上のアルキレン基又はアルキ
レンエーテル基を含有する不飽和樹脂３０〜１００重量
％ （Ｂ）ラジカル重合性単量体０〜７０重量％及び（Ｃ）
ラジカル重合開始剤を（Ａ）＋（Ｂ）１００重量部に対
し０．３〜３．０重量部 を加えてなる液状組成物を、長さ５〜６０ｍｍの無機又
は有機の繊維状強化材に含浸・増粘して繊維含有コンパ
ウンドを形成せしめ、該コンパウンドを金型内で加熱、
加圧、成形硬化してなる、該硬化物のガラス移転温度が
３０℃以下であることを特徴とする制振材料。 ２、液状組成物を繊維状強化材に含浸・増粘して形成せ
しめられた繊維含有コンパウンドの粘度が２５℃におい
て５０，０００ポアズ〜１，５００，０００ポアズであ
る特許請求の範囲第１項記載の制振材料。[Scope of Claims] 1. (A) Unsaturated resin having two or more radically polymerizable unsaturated groups in one molecule and containing an alkylene group or alkylene ether group having 4 or more carbon atoms 30 to 100 Weight% (B) 0 to 70% by weight of radically polymerizable monomer and (C)
A liquid composition prepared by adding 0.3 to 3.0 parts by weight of a radical polymerization initiator to 100 parts by weight of (A) + (B) is added to an inorganic or organic fibrous reinforcement with a length of 5 to 60 mm. Impregnating and thickening to form a fiber-containing compound, heating the compound in a mold,
A damping material obtained by pressurizing, molding and curing and having a glass transition temperature of the cured product of 30°C or less. 2. Claim 1, wherein the viscosity of the fiber-containing compound formed by impregnating and thickening a fibrous reinforcing material with a liquid composition is 50,000 poise to 1,500,000 poise at 25°C. Damping material listed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12945885A JPS61287935A (en) | 1985-06-14 | 1985-06-14 | Vibration-damping material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12945885A JPS61287935A (en) | 1985-06-14 | 1985-06-14 | Vibration-damping material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61287935A true JPS61287935A (en) | 1986-12-18 |
Family
ID=15009987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12945885A Pending JPS61287935A (en) | 1985-06-14 | 1985-06-14 | Vibration-damping material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61287935A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63183444U (en) * | 1987-05-20 | 1988-11-25 | ||
| FR2630796A1 (en) * | 1988-05-02 | 1989-11-03 | Bridgestone Corp | Rubber-based vibration absorber and antiearthquake absorber structure |
| JP2008291859A (en) * | 2007-05-22 | 2008-12-04 | Ps Mitsubishi Construction Co Ltd | External temporary structure for seismically-isolated structure |
-
1985
- 1985-06-14 JP JP12945885A patent/JPS61287935A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63183444U (en) * | 1987-05-20 | 1988-11-25 | ||
| FR2630796A1 (en) * | 1988-05-02 | 1989-11-03 | Bridgestone Corp | Rubber-based vibration absorber and antiearthquake absorber structure |
| JP2008291859A (en) * | 2007-05-22 | 2008-12-04 | Ps Mitsubishi Construction Co Ltd | External temporary structure for seismically-isolated structure |
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