In the present study, epoxidized polybutadiene rubber (EBR; 30 mol% epoxidation) was synthesized using commercial-grade cis-polybutadiene rubber (BR). The EBR was successfully utilized as an effective compatibilizer between two incompatible elastomers, namely polar acrylonitrile butadiene rubber (NBR) and non-polar polybutadiene rubber (BR). The NBR and BR were blended in varied formulations and studied for morphological and mechanical properties. The observed properties of the blends containing EBR, as a compatibilizer, were compared with analogous blends without EBR. The optimum loading of EBR in NBR/BR formulations was found to be 5 phr (parts per hundred gram of rubber). The significant improvement in various mechanical properties such as tensile strength, tensile modulus, elongation at break and hardness were observed in presence of optimum loading of EBR in NBR/BR blends. Atomic Force Microscopy (AFM), Differential Scanning Calorimetry (DSC) and Dynamic Mechanical Analyser (DMA) studies revealed that the compatibility between two incompatible rubbers improved in the presence of EBR. The results observed with EBR-compatibilized blends revealed that EBR can be used as an effective compatibilizer between two incompatible rubbers (NBR and BR).

在本研究中，使用商业级顺式聚丁二烯橡胶（BR）合成了环氧化聚丁二烯橡胶（EBR; 30 mol％环氧化）。EBR已成功用作两种不相容弹性体（极性丙烯腈丁二烯橡胶（NBR）和非极性聚丁二烯橡胶（BR））之间的有效增容剂。将NBR和BR混合成各种配方，并研究其形态和机械性能。将含有EBR作为增容剂的共混物的观察到的性能与不含EBR的类似共混物进行了比较。发现NBR / BR配方中EBR的最佳负载量为5 phr（每100克橡胶中的份数）。各种机械性能（例如拉伸强度，拉伸模量，在NBR / BR共混物中EBR的最佳负载下，观察到断裂伸长率和硬度。原子力显微镜（AFM），差示扫描量热法（DSC）和动态力学分析仪（DMA）研究表明，在存在EBR的情况下，两种不相容橡胶之间的相容性得到了改善。用EBR相容的共混物观察到的结果表明，EBR可以用作两种不相容橡胶（NBR和BR）之间的有效相容剂。