采用胶乳共沉法和直接共混法制备了丁腈橡胶/聚氯乙稀/有机蒙脱土(NBR/PVC/OMMT)纳米复合材料.通过X射线衍射和透射电子显微镜对NBR/PVC/OMMT纳米复合材料的结构进行了表征,并研究其力学性能、耐油性能、耐热老化性能、硫化特性和动态力学性能.结果表明,所获得的复合材料是插层纳米复合材料;有机蒙脱土能够明显地促进NBR的硫化反应,使焦烧时间和硫化时间明显缩短;胶乳共沉法制备的纳米复合材料中的蒙脱土的分散更为均匀,其力学性能、耐油性能和耐老化性能明显优于直接共混法.
Butadiene - acrylonitrile rubber (NBR)/polyvinyl chloride (PVC)/organomontmorillonite (OMMT) nanomposites were prepared by using latex co-precipitation technique and direct mixing technique. The structure of the composites was characterized by transmission electronic microscopy (TEM) and X-ray diffraction (XRD). The mechanical properties, oil resistance, aging resistance, vulcanization behavior and dynamic mechanical properties of the composites were investigated. The results of XRD and TEM showed that the ...