| PU/PMMA IPN的阻尼行为研究 |
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| 引用本文： | 秦东奇,王静媛,于小强,李峰,汤心颐.PU/PMMA IPN的阻尼行为研究[J].高分子材料科学与工程,2000,16(5):95-98. |
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| 作者姓名： | 秦东奇 王静媛 于小强 李峰 汤心颐 |
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| 作者单位： | 吉林大学化学系,吉林,长春,130023 |
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| 摘 要： | 采用全自动扭辫仪和驻波管对ＰＵ＝ＰＭＭＡ ＩＰＮ体系的阻尼行为进行了研究，ＴＢＡ结果表明，填料的最佳填加量为１０％，吸音系数测试表明，常温时该种结构的ＩＰＮ材料的吸音系数与频率近似成峰形，最大吸收在３０００Ｈｚ左右。最好的吸音材料的吸音系数峰值为５０％以上。
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| 关 键 词： | 吸音系数 填料 阻尼行为 高聚物 PU PMMA IPN |
| 修稿时间： | 1998-10-04 |
STUDIES OF THE DAMPING PROPERTIES OF PU/PMMA IPNs |
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| QIN Dong-qi,WANG Jing-yuan,YU Xiao-qiang,LI Feng,TANG Xin-yi.STUDIES OF THE DAMPING PROPERTIES OF PU/PMMA IPNs[J].Polymer Materials Science & Engineering,2000,16(5):95-98. |
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| Authors: | QIN Dong-qi WANG Jing-yuan YU Xiao-qiang LI Feng TANG Xin-yi |
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| Abstract: | In the present paper, investigation on the damping properties of PU/PMMA IPN system were performed using constrain cube method and dynamic mechanic spectroscopy as tools. The results of TBA show that the most preferable content of fillers are 10%. The experiment of sound absorption coefficient(SAC) showes that the SAC of polymer materials is lower both at low frequency and at high frequency and reaches the maximum at special frequency region which is determined by the properties of the polymer materials. For PU/PMMA IPN systems the sound absorption coefficient reaches the peak at about 3000 Hz and the value of that is above 50%. |
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| Keywords: | damping factor SAC fillers damping properties |
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