JPH04202333A - Vibration-damping sheet - Google Patents
Vibration-damping sheetInfo
- Publication number
- JPH04202333A JPH04202333A JP33588490A JP33588490A JPH04202333A JP H04202333 A JPH04202333 A JP H04202333A JP 33588490 A JP33588490 A JP 33588490A JP 33588490 A JP33588490 A JP 33588490A JP H04202333 A JPH04202333 A JP H04202333A
- Authority
- JP
- Japan
- Prior art keywords
- filler
- damping sheet
- vibration damping
- sheet
- powder
- 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
- 238000013016 damping Methods 0.000 title claims description 21
- 239000000945 filler Substances 0.000 claims abstract description 14
- 238000004132 cross linking Methods 0.000 claims abstract description 10
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 7
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000011120 plywood Substances 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 238000010348 incorporation Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005187 foaming Methods 0.000 description 3
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- IMUDHTPIFIBORV-UHFFFAOYSA-N aminoethylpiperazine Chemical compound NCCN1CCNCC1 IMUDHTPIFIBORV-UHFFFAOYSA-N 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000009774 resonance method Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、鋼板や合板等にサンドイッチし、あるいはそ
の表面に貼着して使用する制振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 vibration damping sheet that is used by being sandwiched between steel plates, plywood, etc., or by being attached to the surface thereof.
自動車等の振動発生機関があるものでは、その機関によ
り発生する振動が、電子制御機器にノイズを与えたり、
その機関に係わる人間に対して悪影響を及ぼしたりする
。In vehicles that have vibration-generating engines, such as automobiles, the vibrations generated by the engine can cause noise to electronic control equipment,
It may have a negative impact on the people involved in the organization.
その振動を緩和するために、合成樹脂等からなる制振シ
ートを用いるが、一般に増量化や高比重化のために充填
材を添加するものである。しかし充填材を混入すること
により、従来の制振シートでは振動減衰性能が大幅に低
下するため、さらに高性能の制振シートが必要とされて
いる。In order to alleviate the vibrations, a damping sheet made of synthetic resin or the like is used, but fillers are generally added to increase the weight or increase the specific gravity. However, when a filler is mixed in, the vibration damping performance of conventional vibration damping sheets is significantly reduced, so there is a need for vibration damping sheets with even higher performance.
［発明が解決しようとする課題］
本発明は、上記欠点に鑑みなされたもので、鋼板や合板
等にサンドインチし、あるいはその表面に貼着すること
によって、振動を抑えることができる制振シートを提供
するものである。[Problems to be Solved by the Invention] The present invention was made in view of the above-mentioned drawbacks, and provides a vibration damping sheet that can suppress vibration by sandwiching it into a steel plate, plywood, etc., or sticking it to the surface thereof. It provides:
本発明は、鋼板や合板等にサンドイッチし、あるいはそ
の表面に貼着して使用する、アクリル系樹脂に充填材を
充填してなる制振シートにおいて、充填材を硫酸バリウ
ム粉体とし、さらに架橋促進材を添加してなる制振シー
トである。The present invention relates to a vibration damping sheet made of acrylic resin filled with a filler, which is sandwiched between steel plates, plywood, etc., or adhered to the surface thereof. This is a vibration damping sheet made by adding a promoting material.
（実施例１）
本実施例は、アクリル系樹脂に充填材として粒径が数十
μｍ以下の硫酸バリウム粉体を、樹脂１００重量部に対
して敷部〜数十重量部混入し、架橋促進剤を数部〜十数
重量部添加してなるものである。(Example 1) In this example, barium sulfate powder with a particle size of several tens of micrometers or less was mixed into an acrylic resin as a filler to promote crosslinking. It is made by adding several parts to more than ten parts by weight of the agent.
本実施例において、アクリル系樹脂として、アクリル酸
エチル、アクリル酸ブチルおよびアクリロニトリルを１
：８：１の割合で共重合させたものとし、充填材として
、粒径０．８０μｍの硫酸バリウム粉体を５０重量部混
入し、さらに架橋促進剤として、ピペラジンエタンアミ
ンを５重量部添加してシート状に成形した制振シートの
損失係数の温度特性を、粘弾性スペクトロメータで測定
した結果を第１図ａに示す。In this example, ethyl acrylate, butyl acrylate, and acrylonitrile were used as the acrylic resin.
: Copolymerized at a ratio of 8:1, 50 parts by weight of barium sulfate powder with a particle size of 0.80 μm was mixed as a filler, and 5 parts by weight of piperazine ethanamine was added as a crosslinking accelerator. Figure 1a shows the results of measuring the temperature characteristics of the loss coefficient of the damping sheet formed into a sheet using a viscoelastic spectrometer.
比較例として本実施例の配合において、架橋促進剤を添
加しないシートについても同様に第１図すに示した。As a comparative example, a sheet in which no crosslinking accelerator was added in the formulation of this example is also shown in FIG.
温度１０°Ｃ付近に見られる損失係数のピーク値は、本
実施例の制振シートでは約１．８であるのに対し、比較
例では約１．０である。これらのデータより、当該シー
トは、従来の制振シートと比べて非常に高い制振性能を
もつことがわかる。The peak value of the loss coefficient observed at a temperature of around 10° C. is approximately 1.8 in the damping sheet of this example, while it is approximately 1.0 in the comparative example. From these data, it can be seen that the sheet has extremely high vibration damping performance compared to conventional vibration damping sheets.
（実施例２）
本実施例は、実施例１に加えて、フレーク状粉体を敷部
〜数十重量部混入し、発泡倍率を数倍に発泡して成形し
たものである。(Example 2) In this example, in addition to Example 1, flake-like powder was mixed in the base portion to several tens of parts by weight, and the foam was foamed and molded at several times the expansion ratio.
本実施例では、フレーク状粉体を混入することによる発
泡成形性の向上により、発泡制振シートの製造が可能と
なる。従って、充填材の増量化および発泡化が、使用す
る樹脂の体積分率の低下につながり、低コスト化がはか
れる。In this example, the foaming moldability is improved by mixing the flaky powder, making it possible to manufacture a foamed vibration damping sheet. Therefore, increasing the amount of the filler and foaming it leads to a decrease in the volume fraction of the resin used, resulting in cost reduction.
本実施例（前述のように架橋促進剤の添加量は５重量部
）において、フレーク状粉体としてフレーク径６５０μ
ｍの金マイカを５０重量部混入し、発泡倍率を２．５〜
３．０倍とした制振シートの損失係数を、ゴムの動的試
験法である共振法（ＪＩＳＫ６３９４）により計測した
ところ、２．０３であった（第２図参照）。In this example (as mentioned above, the amount of crosslinking accelerator added was 5 parts by weight), the flake-like powder had a flake diameter of 650 μm.
50 parts by weight of mica gold mica is mixed in, and the foaming ratio is set to 2.5~
The loss coefficient of the damping sheet multiplied by 3.0 was measured by the resonance method (JISK6394), which is a dynamic testing method for rubber, and was found to be 2.03 (see Figure 2).
比較例として架橋促進剤の添加量を０．１および３Ｎ量
部とした場合の損失係数を第２図に示す。As a comparative example, loss coefficients are shown in FIG. 2 when the amount of crosslinking accelerator added was 0.1 and 3 N parts.
架橋促進剤を添加しないものと比べて、添加したものの
方が、高い損失係数をもつ。これらのデータより、当該
シートは、低コストで製造が可能で、しかも従来の制振
シートと比べて、非常に高い制振性能をもつことがわか
る。The crosslinking accelerator added has a higher loss factor than the one without the addition. These data show that the sheet can be manufactured at low cost and has extremely high damping performance compared to conventional damping sheets.
本発明は、以上のように、アクリル系樹脂に充填材を充
填させてなる制振シートにおいて、充填材を硫酸バリウ
ム粉体とし、さらに架橋促進剤を添加した制振シート、
またはさらに充填材として、フレーク状粉体を混入し、
発泡させてなる制振シートであるので、鋼板や合板等に
サンドインチし、あるいはその表面に貼着して使用する
ことにより、その板に加わる振動を効果的に抑えること
が出来る。As described above, the present invention provides a vibration damping sheet formed by filling an acrylic resin with a filler.
Or further mix flaky powder as a filler,
Since it is a foamed vibration damping sheet, by sandwiching it into a steel plate, plywood, etc., or attaching it to the surface thereof, it can effectively suppress the vibrations applied to the plate.
第１図は、本発明の実施例１の損失係数の温度特性を示
すグラフ図である。
ａは本発明の実施例１、ｂは比較例である。
第２図は、本発明の実施例２における架橋促進剤の添加
量と損失係数の関係を示すグラフ図である。FIG. 1 is a graph showing the temperature characteristics of the loss coefficient in Example 1 of the present invention. A is Example 1 of the present invention, and b is a comparative example. FIG. 2 is a graph showing the relationship between the amount of crosslinking accelerator added and the loss factor in Example 2 of the present invention.
Claims (2)
トにおいて、充填材を硫酸バリウム粉体とし、さらに架
橋促進剤を添加することを特徴とする制振シート。(1) A vibration damping sheet formed by filling an acrylic resin with a filler, characterized in that the filler is barium sulfate powder and further a crosslinking accelerator is added.
填材に加えて、フレーク状粉体を混入し、さらに発泡さ
せてなることを特徴とする制振シート。(2) A vibration damping sheet according to claim 1, characterized in that, in addition to the filler described in claim 1, flake-like powder is mixed and foamed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33588490A JPH04202333A (en) | 1990-11-29 | 1990-11-29 | Vibration-damping sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33588490A JPH04202333A (en) | 1990-11-29 | 1990-11-29 | Vibration-damping sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04202333A true JPH04202333A (en) | 1992-07-23 |
Family
ID=18293456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33588490A Pending JPH04202333A (en) | 1990-11-29 | 1990-11-29 | Vibration-damping sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04202333A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015527412A (en) * | 2012-05-22 | 2015-09-17 | ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ | Non-aqueous damping material with solvent-free polyacrylate binder |
-
1990
- 1990-11-29 JP JP33588490A patent/JPH04202333A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015527412A (en) * | 2012-05-22 | 2015-09-17 | ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ | Non-aqueous damping material with solvent-free polyacrylate binder |
| US9969860B2 (en) | 2012-05-22 | 2018-05-15 | Basf Se | Non-aqueous sound-absorbing compound with a solvent-free polyacrylate binder |
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