In the manuscript, the quaternization method followed by anion exchange reaction was used to prepare 1-dodecyl-3-methylimidazolium tetrafluoroborate [C12MIM]BF 4 − ionic liquid (IL). The prepared IL was verified through Fourier transform infrared and 1 H-nuclear magnetic resonance spectroscopy. The IL, as a novel plasticizer, is incorporated into the acrylonitrile butadiene rubber (NBR) composite with different contents from 1 to 5 phr in comparison with dioctyl phthalate (DOP) as a traditional plasticizer. The IL effect on the rheology, mechanical, electrical properties of the vulcanizates and their resistance to thermal ageing were investigated. The morphology of NBR composites was investigated by a scanning electron microscope. The results show that adding IL to the NBR vulcanizates improves both mechanical and electrical properties of composites more than traditional DOP.

中文翻译：

---

丙烯腈丁二烯橡胶 (NBR) 的新型增塑剂及其对硫化胶物理机械和电气性能的影响

在手稿中，季铵化方法和阴离子交换反应用于制备 1-dodecyl-3-methylimidazolium 四氟硼酸盐 [C12MIM]BF 4 - 离子液体 (IL)。通过傅里叶变换红外光谱和 1 H-核磁共振光谱验证制备的IL。与作为传统增塑剂的邻苯二甲酸二辛酯 (DOP) 相比，IL 作为一种新型增塑剂以 1 至 5 phr 的不同含量掺入丁腈橡胶 (NBR) 复合材料中。研究了 IL 对硫化橡胶的流变学、机械、电学性能及其耐热老化性的影响。通过扫描电子显微镜研究了 NBR 复合材料的形貌。