JPH0665423A - Vibration damping material - Google Patents
Vibration damping materialInfo
- Publication number
- JPH0665423A JPH0665423A JP22565292A JP22565292A JPH0665423A JP H0665423 A JPH0665423 A JP H0665423A JP 22565292 A JP22565292 A JP 22565292A JP 22565292 A JP22565292 A JP 22565292A JP H0665423 A JPH0665423 A JP H0665423A
- Authority
- JP
- Japan
- Prior art keywords
- vibration damping
- rubber
- damping material
- elasticity
- polyamide
- 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.)
- Withdrawn
Links
- 238000013016 damping Methods 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 title claims abstract description 17
- 229920001971 elastomer Polymers 0.000 claims abstract description 34
- 239000000806 elastomer Substances 0.000 claims abstract description 11
- 229920002647 polyamide Polymers 0.000 claims abstract description 11
- 239000004952 Polyamide Substances 0.000 claims abstract description 9
- 239000005060 rubber Substances 0.000 claims description 23
- 244000043261 Hevea brasiliensis Species 0.000 abstract description 6
- 229920003052 natural elastomer Polymers 0.000 abstract description 6
- 229920001194 natural rubber Polymers 0.000 abstract description 6
- 229920003051 synthetic elastomer Polymers 0.000 abstract description 5
- 239000005061 synthetic rubber Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000004721 Polyphenylene oxide Substances 0.000 abstract description 2
- 239000004902 Softening Agent Substances 0.000 abstract description 2
- 239000006229 carbon black Substances 0.000 abstract description 2
- 239000000945 filler Substances 0.000 abstract description 2
- 229920003049 isoprene rubber Polymers 0.000 abstract description 2
- 239000004014 plasticizer Substances 0.000 abstract description 2
- 229920000728 polyester Polymers 0.000 abstract description 2
- 229920000570 polyether Polymers 0.000 abstract description 2
- 239000010734 process oil Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract 2
- 239000003963 antioxidant agent Substances 0.000 abstract 1
- 230000003078 antioxidant effect Effects 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 238000002955 isolation Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229920002614 Polyether block amide Polymers 0.000 description 1
- 229920006099 Vestamid® Polymers 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建築物などの免震など
に利用される振動減衰材料に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration damping material used for seismic isolation of buildings and the like.
【０００２】[0002]
【従来の技術】従来より、建築物、構造物、床、各種設
備などの免震対策として、基礎材に鋼板とゴム板を交互
に積層してバネ機能を持たせた積層ゴムを用いるととも
に、振動エネルギーを吸収する鋼材ダンパーを設置する
ことが一般に行われている。2. Description of the Related Art Conventionally, as a seismic isolation measure for buildings, structures, floors, various equipment, etc., a laminated rubber having a spring function by alternately laminating a steel plate and a rubber plate on a base material has been used. It is common practice to install a steel damper that absorbs vibration energy.
【０００３】しかしながら、このような積層ゴムと鋼材
ダンパーとの併用は、施工やメンテナンスに多大な時間
や費用を要するだけでなく、地下空間の有効利用が妨げ
られるという難点があった。However, the combined use of such a laminated rubber and a steel damper not only takes a lot of time and money for construction and maintenance, but also has a drawback that the effective use of the underground space is hindered.
【０００４】そこで、積層ゴム自身に上記ダンパー機能
を付与した一体型免震アイソレータの要求が高まってお
り、これに用いる新規な振動減衰材料の開発が求められ
ている。Therefore, there is an increasing demand for an integrated seismic isolation isolator in which the above-mentioned damper function is added to the laminated rubber itself, and the development of a new vibration damping material used for this is required.
【０００５】すなわち、積層ゴムにダンパー機能を付与
するためには、機械特性やクリープ特性に優れ、大変形
に追随可能な伸びを有するとともに、良好かつ安定した
弾性および振動減衰特性を具備した振動減衰材料が要求
される。That is, in order to impart a damper function to the laminated rubber, the vibration damping is excellent in mechanical properties and creep properties, has an elongation capable of following large deformation, and has good and stable elasticity and vibration damping properties. Materials are required.
【０００６】ところで、従来、積層ゴムには、機械特性
やクリープ特性の良好な天然ゴムが一般に使用されてい
る。しかしながら、天然ゴムは、弾性が非常に強く、振
動減衰機能をほとんど有さない。一方、防振ゴムとして
汎用されているクロロプレンゴムやブチルゴムなどの合
成ゴムは、免震アイソレータに要求される大変形に追随
できるだけの伸びがないうえ、使用温度範囲（ -10〜40
℃）における弾性特性や減衰特性などの安定性、大変形
領域における減衰性能などが不十分である。By the way, conventionally, natural rubber having good mechanical properties and creep properties has been generally used for the laminated rubber. However, natural rubber is very elastic and has almost no vibration damping function. On the other hand, synthetic rubbers such as chloroprene rubber and butyl rubber, which are widely used as anti-vibration rubbers, do not have enough elongation to follow the large deformations required for seismic isolation isolators, and the operating temperature range (-10 to 40
Stability such as elastic properties and damping properties at ℃), damping performance in the large deformation region, etc. are insufficient.
【０００７】[0007]
【発明が解決しようとする課題】このように、近時、積
層ゴムとダンパーの機能を併せ持つ一体型免震アイソレ
ータに適する、機械特性やクリープ特性に優れる一方、
弾性および振動減衰特性が良好かつ安定している新規な
振動減衰材料の要求がある。As described above, the mechanical characteristics and the creep characteristics, which are suitable for the integrated seismic isolation isolator having the functions of the laminated rubber and the damper as described above, are excellent.
There is a need for new vibration damping materials that have good and stable elasticity and vibration damping properties.
【０００８】本発明はこのような要求に応えるべくなさ
れたもので、機械特性やクリープ特性に優れ、しかも、
良好かつ安定した弾性および振動減衰特性を有する振動
減衰材料を提供することを目的とする。The present invention has been made in order to meet such requirements, and has excellent mechanical properties and creep properties, and
An object is to provide a vibration damping material having good and stable elasticity and vibration damping characteristics.
【０００９】[0009]
【課題を解決するための手段】本発明の振動減衰材料
は、ゴム 100重量部あたり、 5〜100 重量部のポリアミ
ド系エラストマを含有することを特徴としている。The vibration damping material of the present invention is characterized by containing 5 to 100 parts by weight of polyamide elastomer per 100 parts by weight of rubber.
【００１０】本発明において使用されるゴムとしては、
天然ゴムのほか、補強繊維を配合して強化した各種繊維
強化合成ゴム、たとえば FRR（宇部興産社製 商品名）
などや、液状イソブチレンゴム、液状イソプレンゴム、
各種（液状、高ニトリル、あるいはカルボキシル変性な
ど）アクリロニトリルブタジエンゴム、クロロプレンゴ
ムなどが好適に使用される。これらは、 1種を単独で使
用してもよく、 2種以上を混合して使用するようにして
もよい。The rubber used in the present invention includes:
In addition to natural rubber, various fiber-reinforced synthetic rubbers reinforced with reinforcing fibers, such as FRR (trade name of Ube Industries)
Etc., liquid isobutylene rubber, liquid isoprene rubber,
Various (liquid, high nitrile, carboxyl modified, etc.) acrylonitrile butadiene rubber, chloroprene rubber and the like are preferably used. These may be used alone or in combination of two or more.
【００１１】また、本発明において使用されるポリアミ
ド系エラストマは、ゴムとプラスチックの中間的物性を
有する熱可塑性エラストマの 1種で、ポリアミドをハー
ドセグメントとし、ポリエーテルもしくはポリエステル
をソフトセグメントとする共重合体エラストマである。
市販品を例示すると、 ATOCHEM社製の Pebax、ヒュルス
社製のVestamid、 Ems社製のグリラックスＡ、宇部興産
社製の UBE-PAE（以上、いずれも商品名）などがある。
このようなポリアミド系エラストマは、ゴムに対する分
散性に優れ、その優れた機械特性、弾性特性を損なうこ
となく、優れた振動減衰特性を付与することができる。The polyamide elastomer used in the present invention is one of thermoplastic elastomers having intermediate physical properties of rubber and plastic, and is composed of polyamide, which is a hard segment, and polyether or polyester, which is a soft segment. It is a combined elastomer.
Examples of commercially available products include Pebax manufactured by ATOCHEM, Vestamid manufactured by Huls, Grelax A manufactured by Ems, and UBE-PAE manufactured by Ube Industries (all of which are trade names).
Such a polyamide elastomer has excellent dispersibility in rubber, and can impart excellent vibration damping characteristics without impairing its excellent mechanical properties and elastic properties.
【００１２】本発明において、このようなポリアミド系
エラストマの含有量を、ゴム分 100重量部あたり 5〜10
0 重量部に限定したのは、 5重量部未満では振動減衰付
与効果が十分得られず、逆に 100重量部を越えると伸び
特性が低下し、また弾性も著しく低下するようになるか
らである。In the present invention, the content of such a polyamide elastomer is 5 to 10 per 100 parts by weight of the rubber content.
The reason why the amount is limited to 0 parts by weight is that if it is less than 5 parts by weight, the effect of imparting vibration damping cannot be sufficiently obtained, and if it exceeds 100 parts by weight, the elongation property deteriorates and the elasticity also remarkably decreases. .
【００１３】なお、本発明の振動減衰材料には、上記成
分の他、カーボンブラックなどの充填剤、プロセスオイ
ルなどの軟化剤、可塑剤、老化防止剤などを、本発明の
効果を阻害しない範囲で配合することができる。In the vibration damping material of the present invention, in addition to the above components, a filler such as carbon black, a softening agent such as process oil, a plasticizer, an antiaging agent, etc. are used within a range that does not impair the effects of the present invention. Can be compounded.
【００１４】[0014]
【作用】本発明の振動減衰材料では、ゴムに、熱可塑性
エラストマの 1種であるポリアミド系エラストマを特定
の割合で併用するようにしたので、積層ゴムのゴム材に
本来要求される優れた機械特性、クリープ特性を有する
うえに、良好かつ安定した弾性および振動減衰特性を有
したものとなる。したがって、これを用いてダンパー機
能を備えた積層ゴムの製造が可能になり、建築物などに
対する優れた免震システムを確立することができる。In the vibration damping material of the present invention, the polyamide-based elastomer, which is one of the thermoplastic elastomers, is used together with the rubber in a specific ratio. Therefore, the excellent mechanical properties originally required for the rubber material of the laminated rubber are obtained. In addition to the characteristics and creep characteristics, it has good and stable elasticity and vibration damping characteristics. Therefore, it is possible to manufacture a laminated rubber having a damper function by using this, and it is possible to establish an excellent seismic isolation system for buildings and the like.
【００１５】[0015]
【実施例】次に本発明の実施例を記載する。EXAMPLES Examples of the present invention will be described below.
【００１６】実施例１〜３ 表１に示した配合で、各成分をニーダーを用いて均一に
混合した。得られた混合物を 150℃、30分間の熱処理を
施して加硫させ、 5.0mm厚のシートとした。Examples 1 to 3 With the formulations shown in Table 1, the components were uniformly mixed using a kneader. The obtained mixture was heat-treated at 150 ° C. for 30 minutes to be vulcanized to obtain a 5.0 mm thick sheet.
【００１７】このようにして得た各シートについて、硬
さ（JIS A による）、引張強さ、および伸びを測定する
とともに、周波数 0.3Hz、変形量がシート厚みに対して
約10％、曲げモードで動的機械試験を行ったときの -10
℃および40℃における弾性率の比を求め、弾性の温度安
定性を評価した。また、振動減衰特性を調べるために、
上記シートと 2.3mm厚の鋼板とを交互に積層して直径 3
00mmの円筒状の積層ゴム（ゴム層数 24)を製造し、これ
に面圧60kgf/cm2 の鉛直荷重下で、周波数 0.5Hzのサイ
ン波をせん断方向に加え、せん断歪がシートの厚さに対
して 100％の動的加振により得られたヒステリシス曲線
より、等価減衰定数（h eq）を求めた。The hardness (according to JIS A), the tensile strength, and the elongation of each sheet thus obtained were measured, and the frequency was 0.3 Hz, the amount of deformation was about 10% with respect to the sheet thickness, and the bending mode was measured. -10 when a dynamic mechanical test was conducted at
The temperature stability of elasticity was evaluated by calculating the ratio of elastic moduli at ℃ and 40 ℃. Also, in order to investigate the vibration damping characteristics,
The above sheets and 2.3 mm thick steel plates are alternately laminated to form a diameter of 3
A cylindrical laminated rubber of 00 mm (24 rubber layers) was manufactured, and a sine wave with a frequency of 0.5 Hz was applied in the shear direction under a vertical load with a surface pressure of 60 kgf / cm 2 , and shear strain caused the thickness of the sheet. The equivalent damping constant (h eq ) was obtained from the hysteresis curve obtained by 100% dynamic excitation.
【００１８】以上の結果を表１下欄に示す。The above results are shown in the lower column of Table 1.
【００１９】なお、比較のために、ポリアミド系エラス
トマを未配合とした例（比較例１）、およびポリアミド
系エラストマを過剰に配合した例（比較例２）を表１に
併せ示した。For comparison, Table 1 also shows an example in which the polyamide elastomer was not compounded (Comparative Example 1) and an example in which the polyamide elastomer was excessively compounded (Comparative Example 2).
【００２０】[0020]
【表１】 表１からも明らかなように、本発明にかかる振動減衰材
料は、伸びも大きく十分な機械特性を有していた。ま
た、積層ゴムの使用環境温度 -10〜40℃の範囲で安定し
た弾性を有し、かつ優れた振動減衰特性を有していた。[Table 1] As is clear from Table 1, the vibration damping material according to the present invention has a large elongation and sufficient mechanical properties. In addition, the laminated rubber had stable elasticity in the operating environment temperature range of -10 to 40 ° C and had excellent vibration damping characteristics.
【００２１】[0021]
【発明の効果】以上の実施例からも明らかなように、本
発明の振動減衰材料は、天然ゴムに匹敵する伸び、機械
強度を有し、かつ、優れた振動減衰特性を有しているの
で、これを用いて、ダンパー機能を有する積層ゴムの製
造が可能になり、建築物などに対し、経済的でむだのな
い免震システムを確立するすることができる。As is clear from the above examples, the vibration damping material of the present invention has elongation and mechanical strength comparable to natural rubber and has excellent vibration damping characteristics. By using this, it becomes possible to manufacture laminated rubber having a damper function, and it is possible to establish an economical and waste-free seismic isolation system for buildings and the like.
【００２２】[0022]
Claims (1)
のポリアミド系エラストマを含有することを特徴とする
振動減衰材料。1. A vibration damping material comprising 5 to 100 parts by weight of polyamide elastomer per 100 parts by weight of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22565292A JPH0665423A (en) | 1992-08-25 | 1992-08-25 | Vibration damping material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22565292A JPH0665423A (en) | 1992-08-25 | 1992-08-25 | Vibration damping material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0665423A true JPH0665423A (en) | 1994-03-08 |
Family
ID=16832654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22565292A Withdrawn JPH0665423A (en) | 1992-08-25 | 1992-08-25 | Vibration damping material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0665423A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6257036B1 (en) | 1998-07-09 | 2001-07-10 | Tadashi Iura | Metallic shaft material diameter increasing device |
| US6568233B2 (en) | 1999-01-20 | 2003-05-27 | Iura Co., Ltd. | Method and apparatus of diametrically expanding metal shafts |
| KR20040024212A (en) * | 2002-09-13 | 2004-03-20 | 이응길 | Buffering composition |
| WO2006076958A1 (en) * | 2005-01-22 | 2006-07-27 | Henkel Kommanditgesellschaft Auf Aktien | Injectable, low-viscosity rubber damping compounds |
-
1992
- 1992-08-25 JP JP22565292A patent/JPH0665423A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6257036B1 (en) | 1998-07-09 | 2001-07-10 | Tadashi Iura | Metallic shaft material diameter increasing device |
| US6568233B2 (en) | 1999-01-20 | 2003-05-27 | Iura Co., Ltd. | Method and apparatus of diametrically expanding metal shafts |
| KR20040024212A (en) * | 2002-09-13 | 2004-03-20 | 이응길 | Buffering composition |
| WO2006076958A1 (en) * | 2005-01-22 | 2006-07-27 | Henkel Kommanditgesellschaft Auf Aktien | Injectable, low-viscosity rubber damping compounds |
| US8137500B2 (en) | 2005-01-22 | 2012-03-20 | Henkel Kgaa | Sprayable low-viscosity rubber damping compounds |
| DE202005022067U1 (en) | 2005-01-22 | 2013-03-27 | Henkel Ag & Co. Kgaa | Injectable, low viscosity rubber damping compounds |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19991102 |