JPH034843Y2 - - Google Patents
Info
- Publication number
- JPH034843Y2 JPH034843Y2 JP1982163165U JP16316582U JPH034843Y2 JP H034843 Y2 JPH034843 Y2 JP H034843Y2 JP 1982163165 U JP1982163165 U JP 1982163165U JP 16316582 U JP16316582 U JP 16316582U JP H034843 Y2 JPH034843 Y2 JP H034843Y2
- Authority
- JP
- Japan
- Prior art keywords
- vibration damping
- damping material
- protective layer
- oil
- epoxy resin
- 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
- 238000013016 damping Methods 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 29
- 239000011241 protective layer Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims description 11
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000005060 rubber Substances 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 description 8
- 229920000647 polyepoxide Polymers 0.000 description 8
- 239000003973 paint Substances 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
- Laminated Bodies (AREA)
Description
本考案は振動減衰材の構造に関し、特に耐油性
および耐水性にすぐれ、かつ表面塗装によるクラ
ツクの発生を防止した振動減衰材の構造に関する
ものである。
一般にソナ−を搭載した船舶ではソナ−室近傍
に熱料タンク、バラストタンクがある場合が多
く、主機振動に起因する振動がタンク壁を伝播
し、ソナ−性能に悪影響を与える。そのため熱料
タンク、バラストタンク等はエポキシ樹脂タイル
からなる振動減衰材を壁に貼付けたり、タンクの
これで区画したりして振動を抑制している。とこ
ろが、このエポキシ樹脂タイルは防振効果を向上
させる目的で柔軟な組成のものが選ばれており、
防振効果は良いが耐油性および耐水性に欠けるの
である。そのため、この柔軟なエポキシ樹脂タイ
ルからなる振動減衰材の表面に耐油性、耐水性に
すぐれたエポキシ樹脂塗料を塗装する方法が一般
的にとられている。
ところが、この耐油性、耐水性のエポキシ樹脂
塗料は硬化被膜が極めて硬く、また溶剤に溶かし
た溶液型塗料であるため収縮率も大きく、塗装・
硬化後、振動減衰材と塗料の伸び率の差により、
塗膜にクラツクが生じたり、場合によつては振動
減衰材の方にクラツクが生じるなど不都合な点が
多かつた。
本考案は上述の振動減衰材の欠点を改善すべく
検討を重ねた結果、本考案に至つたものである。
したがつて、本考案の目的は耐油性、耐水性は
勿論、耐クラツク性にもすぐれた振動減衰材の構
造を提供することにある。
すなわち、本発明は振動減衰材層の外側表面部
に非ハロゲン含有ゴムまたはプラスチツクを主体
とする弾性体からなる耐油、耐水性を有する保護
層を一体的に設けたことを特徴とする振動減衰材
の構造をその要旨とするものである。
本考案において振動減衰材層としてはエポキシ
樹脂等、公知の材料を選ぶことができ。特に
MIL−22581−Ｂに規定されたタイル状の振動減
衰材が好ましい。
また、非ハロゲン含有ゴムまたはプラスチツク
を主体とする弾性体からなる耐油、耐水性の保護
層としては、アクリロニトリル・ブタジエン共重
合体、ポリサルフアイドゴム、ポリプロピレン等
が挙げられる。また、耐油、耐水性を別個に考え
れば、耐水用としては上記のゴムまたはプラスチ
ツクの他に、NR、SBR、EPT等が挙げられ、耐
油用としてはアクリルゴム、ウレタンゴム等が挙
げられ、これらを適宜混合して使用することがで
きる。
しかしながら、ネオプレン、ハイパロン、フツ
素ゴム、ポリ塩化ビニル等のハロゲン含有ゴムま
たはプラスチツクは、燃焼時に有毒ガスを発生す
るため、前述した船舶等の火災時の安全上、保護
層として使用するのは避けることが必要である。
本考案においては上記振動減衰材層の表面に上
記保護層を一体的に設ける必要があり、この一体
的に設けた構造について、以下図面を参照して説
明する。
第１図は本考案の第１の実施例を示す断面図で
あり、１は耐油性、耐水性にすぐれた保護層であ
り、２はエポキシ樹脂系の振動減衰材層である。
第２図は保護層１の斜視図であり、保護層１は山
部４と谷部５が交互に表面に刻設され、振動減衰
材層２の表面にもこれと対応する山部と谷部が刻
設され、これらが歯合して一体的に成形されてい
る。
第３図は本考案の振動減衰材を成型している様
子を示す断面図であり、予めプレス成型又は押出
し成型した保護層１を型枠３の底に入れ、その上
にエポキシ樹脂を流し込み振動減衰材層２を成型
する。すると同時に保護層１が振動減衰材層２の
一面に一体的に接着固定される。離型の際は、元
来、保護層１が予め成型されていたものであるた
め、離型塗布などの離型処置をする必要もなく容
易に型から離すことができる。
第４、５図は他の実施例を示す断面図であり、
第４図は保護層１の表面に凹部６と凸部７を刻設
した構造をしており、第５図は単なる板状の保護
層１を一体成型したものである。
次に実験例を挙げ本考案の効果を具体的に説明
する。
実験例 １
表１に示す組成からなる保護層および表２に示
す組成からなる振動減衰材層を第３図に示す成型
方法で成型し、第１図に示すような振動減衰材を
得た。
The present invention relates to the structure of a vibration damping material, and more particularly to the structure of a vibration damping material that has excellent oil and water resistance and prevents cracks from occurring due to surface coating. In general, ships equipped with sonar often have heating tanks and ballast tanks near the sonar room, and vibrations caused by main engine vibration propagate through the tank walls, adversely affecting sonar performance. For this reason, vibrations are suppressed in heating tanks, ballast tanks, etc. by attaching vibration damping materials made of epoxy resin tiles to the walls or dividing the tanks with these. However, this epoxy resin tile is selected to have a flexible composition in order to improve its anti-vibration effect.
Although it has good anti-vibration effects, it lacks oil and water resistance. Therefore, a method is generally used in which the surface of the vibration damping material made of flexible epoxy resin tiles is coated with an epoxy resin paint having excellent oil resistance and water resistance. However, the cured film of this oil- and water-resistant epoxy resin paint is extremely hard, and since it is a solution-based paint dissolved in a solvent, the shrinkage rate is high, making it difficult to paint and paint.
After curing, due to the difference in elongation rate between the vibration damping material and the paint,
There were many disadvantages such as cracks occurring in the coating film and, in some cases, cracks occurring in the vibration damping material. The present invention was developed as a result of repeated studies to improve the drawbacks of the above-mentioned vibration damping materials. Therefore, an object of the present invention is to provide a structure of a vibration damping material that is excellent in oil resistance, water resistance, and crack resistance. That is, the present invention provides a vibration damping material characterized in that an oil- and water-resistant protective layer made of an elastic material mainly made of non-halogen-containing rubber or plastic is integrally provided on the outer surface of the vibration damping material layer. Its gist is the structure of In the present invention, known materials such as epoxy resin can be selected as the vibration damping material layer. especially
A tile-shaped vibration damping material specified by MIL-22581-B is preferred. Further, examples of the oil- and water-resistant protective layer made of an elastic body mainly composed of non-halogen-containing rubber or plastic include acrylonitrile-butadiene copolymer, polysulfide rubber, polypropylene, and the like. Furthermore, if we consider oil resistance and water resistance separately, in addition to the above-mentioned rubbers and plastics, examples of water resistance include NR, SBR, EPT, etc., and examples of oil resistance include acrylic rubber, urethane rubber, etc. They can be mixed and used as appropriate. However, halogen-containing rubbers or plastics such as neoprene, Hypalon, fluorocarbon rubber, and polyvinyl chloride emit toxic gases when burned, so their use as a protective layer in the event of a fire on ships, etc., as mentioned above is avoided. It is necessary. In the present invention, it is necessary to integrally provide the protective layer on the surface of the vibration damping material layer, and the structure of this integrally provided structure will be described below with reference to the drawings. FIG. 1 is a sectional view showing a first embodiment of the present invention, where 1 is a protective layer with excellent oil resistance and water resistance, and 2 is an epoxy resin-based vibration damping material layer.
FIG. 2 is a perspective view of the protective layer 1. The protective layer 1 has peaks 4 and valleys 5 alternately engraved on its surface, and the surface of the vibration damping material layer 2 also has corresponding peaks and valleys. The parts are engraved and are integrally formed by meshing with each other. FIG. 3 is a cross-sectional view showing how the vibration damping material of the present invention is molded. The protective layer 1, which has been press-molded or extruded in advance, is placed in the bottom of the mold 3, and the epoxy resin is poured on top of it. The damping material layer 2 is molded. At the same time, the protective layer 1 is integrally adhesively fixed to one surface of the vibration damping material layer 2. At the time of mold release, since the protective layer 1 was originally molded in advance, it can be easily released from the mold without the need for mold release treatment such as mold release coating. 4 and 5 are cross-sectional views showing other embodiments,
4 shows a structure in which concave portions 6 and convex portions 7 are carved on the surface of the protective layer 1, and FIG. 5 shows a structure in which a simple plate-shaped protective layer 1 is integrally molded. Next, the effects of the present invention will be specifically explained using experimental examples. Experimental Example 1 A protective layer having a composition shown in Table 1 and a vibration damping material layer having a composition shown in Table 2 were molded by the molding method shown in FIG. 3 to obtain a vibration damping material as shown in FIG.
【表】【table】
【表】
得られた振動減衰材のタイルから25mm×125mm
×16tのサンプルを切り出し、表面保護層のつい
ていない他の５面にも同質の保護層のみを接着剤
で貼りつけ、これを軽油２号および海水中に浸漬
し、浸漬時間と重量変化率の関係を調べ、それぞ
れ第６図および第７図の結果を得た。また、別の
サンプルについて円盤法によつて振動減衰性能を
測定し、周波数と減衰係数との関係を第８図に示
した。
比較のために、保護層を全く設けないものと、
それにエポキシ塗料を塗装したものとを用意し、
同じ実験を行なつた。
第６〜８図において、線ａは本実験例、線ｂは
保護層なし、線ｃはエポキシ塗装を示している。
第６、７図の結果から本実験例の振動減衰材は
従来の比較品に比べ耐油性、耐水性にすぐれてい
ることがわかる。また、第８図の結果から、本実
験例のものは保護層を設けているにもかかわらず
減衰性能は保護層なしのものと変わらないことが
わかる。
実験例 ２
表３に示す組成からなる保護層および表４に示
す組成からなる振動減衰材層を実験例１と同様の
方法で成型し、同様の実験を行なつた。
その結果、実験例１による第６〜８図とほとん
ど同じ結果を得た。[Table] 25mm x 125mm from the obtained vibration damping material tile
A 16 ton sample was cut out, a protective layer of the same quality was affixed with adhesive to the other five sides that did not have a surface protective layer, and this was immersed in light oil No. 2 and seawater, and the immersion time and weight change rate were determined. The relationship was investigated and the results shown in Figures 6 and 7 were obtained, respectively. Further, the vibration damping performance of another sample was measured by the disk method, and the relationship between frequency and damping coefficient is shown in FIG. For comparison, one without any protective layer and one without any protective layer.
Prepare one coated with epoxy paint,
I conducted the same experiment. In Figures 6 to 8, line a shows this experimental example, line b shows no protective layer, and line c shows epoxy coating. From the results shown in FIGS. 6 and 7, it can be seen that the vibration damping material of this experimental example has superior oil resistance and water resistance compared to conventional comparative products. Moreover, from the results shown in FIG. 8, it can be seen that the attenuation performance of this experimental example is the same as that without the protective layer, even though the protective layer is provided. Experimental Example 2 A protective layer having the composition shown in Table 3 and a vibration damping material layer having the composition shown in Table 4 were molded in the same manner as in Experimental Example 1, and the same experiment was conducted. As a result, almost the same results as those shown in FIGS. 6 to 8 according to Experimental Example 1 were obtained.
【表】【table】
【表】【table】
第１〜３図は本考案の第１の実施例を示し、第
１図は振動減衰材の断面図、第２図は保護層の斜
視図、第３図は成型中の振動減衰材の断面図であ
り、第４図は第２の実施例の断面図、第５図は第
３の実施例の断面図、第６図は軽油への浸漬期間
と重量変化との関係を示すグラフ、第７図は海水
への浸漬期間と重量変化との関係を示すグラフ、
第８図は周波数と減衰係数との関係を示すグラフ
である。
１……保護層、２……振動減衰材層。
1 to 3 show a first embodiment of the present invention, FIG. 1 is a cross-sectional view of the vibration damping material, FIG. 2 is a perspective view of the protective layer, and FIG. 3 is a cross-section of the vibration damping material during molding. 4 is a sectional view of the second embodiment, FIG. 5 is a sectional view of the third embodiment, FIG. 6 is a graph showing the relationship between the immersion period in light oil and weight change, and FIG. Figure 7 is a graph showing the relationship between the period of immersion in seawater and weight change.
FIG. 8 is a graph showing the relationship between frequency and damping coefficient. 1... Protective layer, 2... Vibration damping material layer.
Claims (1)
ムまたはプラスチツクを主体とする弾性体からな
る耐油、耐水性を有する保護層を一体的に設けた
ことを特徴とする振動減衰材の構造。 A structure of a vibration damping material characterized in that an oil- and water-resistant protective layer made of an elastic body mainly made of non-halogen-containing rubber or plastic is integrally provided on the outer surface of the vibration damping material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16316582U JPS5967652U (en) | 1982-10-29 | 1982-10-29 | Structure of vibration damping material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16316582U JPS5967652U (en) | 1982-10-29 | 1982-10-29 | Structure of vibration damping material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5967652U JPS5967652U (en) | 1984-05-08 |
| JPH034843Y2 true JPH034843Y2 (en) | 1991-02-07 |
Family
ID=30358097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16316582U Granted JPS5967652U (en) | 1982-10-29 | 1982-10-29 | Structure of vibration damping material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5967652U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS521423A (en) * | 1975-06-24 | 1977-01-07 | Tamura Electric Works Ltd | Battery checker |
| JPS55231A (en) * | 1978-06-16 | 1980-01-05 | Dainippon Printing Co Ltd | Device for preventing wrinkling of printed pattern carrier sheet in curved surface printer |
-
1982
- 1982-10-29 JP JP16316582U patent/JPS5967652U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS521423A (en) * | 1975-06-24 | 1977-01-07 | Tamura Electric Works Ltd | Battery checker |
| JPS55231A (en) * | 1978-06-16 | 1980-01-05 | Dainippon Printing Co Ltd | Device for preventing wrinkling of printed pattern carrier sheet in curved surface printer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5967652U (en) | 1984-05-08 |
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