Improved high-temperature damping performance of nitrile-butadiene rubber/phenolic resin composites by introducing different hindered amine molecules
Improved high-temperature damping performance of nitrile-butadiene rubber/phenolic resin composites by introducing different hindered amine molecules
复制标题
DOI：
10.1515/epoly-2020-0054
复制
发表时间：
2020-01-01
期刊：
影响因子：
3.7
通讯作者：
Qin, Qi
中科院分区：
文献类型：
--
作者：
Song, Meng;Yue, Xiulin;Qin, Qi
通过在丁腈橡胶/酚醛树脂（NBR/PR，简称NBPR）基体中引入受阻胺GW-622或GW-944，分别制备了具有高温阻尼性能的受阻胺/NBR/PR三元杂化阻尼材料。采用傅里叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）、差示扫描量热仪（DSC）和动态热机械分析（DMA）研究了受阻胺/NBPR复合材料的微观结构、相容性和阻尼性能。FTIR结果表明，受阻胺与NBPR基体之间形成了氢键。DSC和SEM结果表明，受阻胺与NBPR基体具有部分相容性。DMA结果表明，受阻胺/NBPR复合材料中出现了两个损耗峰。因此，复合材料在较高温度下表现出较好的阻尼性能，且随着受阻胺添加量的增加，高温阻尼温域变宽。该研究为高温阻尼材料的制备提供了理论支持。
By introducing hindered amine GW-622 or GW-944 into nitrile-butadiene rubber/phenolic resin (NBR/PR, abbreviated as NBPR) matrix, we have prepared different hindered amine/NBR/PR ternary hybrid damping materials with high-temperature damping performance, respectively. Fourier transform infrared (FTIR) spectroscopy, scanning electron microscope (SEM), differential scanning calorimetry (DSC), and dynamic thermomechanical analysis (DMA) were used to research the microstructure, compatibility, and damping properties of the hindered amine/NBPR composites. FTIR results indicate that hydrogen bonds are formed between the hindered amine and the NBPR matrix. Both DSC and SEM results show that hindered amine has partial compatibility with the NBPR matrix. DMA results show that two loss peaks appear in the hindered amine/NBPR composite. Thereby, the composites show better damping performance at a higher temperature, and the temperature domain of high-temperature damping becomes wider with the increase in the addition of hindered amine. This study provides a theoretical support for the preparation of high-temperature damping materials.