Kevlar纖維強化Silicone Rubber/Polyurethane/Epoxy三相摻合高分子材料之動態性質防振及防振性能之研究

The Dynamic Properties of Rubber Vibration Isolators and anti-vibration Performance of Kevlar Fiber Reinforced Silicone Rubber/Polyurethane/Epoxy Blends

邱顯堂(H. T. Chiu) ； 邱士軒(S. H. Chiu) ； 吳志宏(J. H. Wu) ； 葛光祥(G. S. Ger)

《材料科學與工程》 33卷4期 (2001/12) Pp. 200-208

https://doi.org/10.6409/JMSE.200112.0200

摘要

本研究主要探討克維拉纖維(Kevlar 49 fiber)強化矽橡膠(Liquid silicone rubber; SI)、聚胺酯(Polyurethane; PU)與環氧樹脂(Epoxy; EP)，在固定纖維含有率(fiber concent: 20%)及固定纖維排列角度(0/90/45/-45/90/0)下之遲滯效應、動態性質防振及振動傳達率試驗，做一系列之探討。
實驗結果顯示，由壓縮及剪切振動遲滯效應得知，當克維拉纖維導入摻合膠之後可明顯的提高摻合膠之制振性能。在動態性質防振試驗得知，隨著克維拉纖維強化摻合膠後，其動態倍率(Dynamic ratio)降低，損失係數提高，因此在防振與抑制噪音上，有明顯提升的效果。且由振動傳達率評估發現，防振區域明顯的由低頻往高頻方向移動，且制振效果提高，使得振幅不致因共振而產生放大效應。

關鍵字

矽橡膠 ； 聚胺基甲酸乙脂 ； 環氣樹脂 ； 克維拉纖維 ； 動態倍率 ； 傳輸率

並列摘要

In this study, the hysteresis effect, dynamic properties, anti-vibration performance and transmissibility ratio of Kevlar fiber Reinforced Silicone Rubber Polyurethane Epoxy Blends were discussed. The experimental results show that Kevlar fiber obviously improved the anti-vibration performance through increased hysteresis of compression and shear performance on the other hand, the dynamic ratio (k(subscript d)/k(subscript s)) decreased and loss modulus with Kevlar fiber inserted. The transmissibility ratio (Tr) were observed shifted to high frequency region due to Kevlar fiber contained. Through these results we conclude that Kevlar fiber reinforced Silicone rubber PU/Epoxy blends possess good anti-vibration and anti-noise performance.

並列關鍵字

Silicone Rubber ； Polyurethane ； Epoxy ； Kevlar fiber ； Dynamic ratio ； Transmissibility ratio