针对CIIR/PVC共混体系损耗因子在中常温较低的缺陷,分别采用添加NBR共混、DBP溶胀的方式改性.DMA测试表明,前者在O～lOO℃的温域内出现了一个很宽的平台,tanδ>O.15;后者使得阻尼曲线向低温移动,在40～90℃中常温度段,损耗因子大大提高.SEM分析表明,添加NBR共混导致了微相分离.静态力学性能测试表明,DBP溶胀改性使得阻尼材料在室温下的模量变大.NBR共混改性和DBP溶胀改性提高了组分间的相容性、改善了阻尼材料的阻尼温域,得到阻尼性能良好的阻尼材料.
参考文献
| [1] | Nourski K V et al.[J].Hearing Research,2005,202(01):141-153. |
| [2] | Bergomi M et al.[J].Health and Pollution Control,1993,30(06):277. |
| [3] | Rao MD. .Recent applications of viscoelastic damping for noise control in automobiles and commercial airplanes[J].Journal of Sound and Vibration,2003(3):457-474. |
| [4] | Garibaldi L;Onah H N.Viscoelastic Material Damping Technologyl[M].Torino:Beechis Osiride,1996 |
| [5] | Chi-fei Wu,Saburo Akiyama.ENHANCEMENT OF DAMPING PERFORMANCE OF POLYMERS BY FUNCTIONAL SMALL MOLECULES[J].高分子科学(英文版),2002(02):119-127. |
| [6] | Li Cong;Xu Shiai.[J].European Polymer Journal,2006(42):2507-2514. |
| [7] | Li Jinjiang.[J].International Journal of Pharmaceutics,1999(350):212-219. |
| [8] | Singh K;Pandey K N;Debnath K K et al.[J].Defence Materials and Stores Research and Development Estab-lishment,1996,19(03):587-600. |
| [9] | Rader C P.Handbook of Thermoplastic Elastomers[M].New York:Van Nostrand Reinhold Company Inc,1988 |
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