The thermaloxydative aging properties were determined on the NR vulcanizates filled with 3 types of clays which were treated by reductant and strong acid and different metal compounds were added in.

• 通过还原剂、强酸及添加金属化合物的方法处理3种粘土，并制备相应的粘土填充NR硫化胶（简称粘土填充胶）进行热氧老化性能测试。