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介绍了液体核磁共振波谱法(NMR)、傅里叶变换红外光谱法(FT-IR)、扫描电镜(SEM)和热失重分析(TGA)4种现代分析方法在橡胶光氧老化分析中的应用。NMR法能分析橡胶链中单元链节的组成、FTIR法能表征镍系胶在光氧老化过程中分子结构的动态变化结果,SEM能研究样品的聚集状态及低温下的结晶行为,TG研究样品的热稳定性等。
The application of four modern analytical methods including liquid nuclear magnetic resonance spectroscopy (NMR), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA) . NMR method can analyze the composition of the unit chain in the rubber chain. The FTIR method can characterize the dynamic change of the molecular structure of the nickel-based rubber during photooxidation. The SEM can study the aggregation state of the sample and the crystallization behavior at low temperature. The TG study sample Thermal stability and so on.