【摘要】 通过二次插层取代法 ,以二甲基亚砜为前驱体 ,羧甲基淀粉二次插层取代制备了高岭土 羧甲基淀粉纳米复合材料 .结合XRD ,FTIR ,SEM和EDS等测试手段对复合材料的结构进行了表征 .研究结果发现 ,羧甲基淀粉经过二次插层取代引起了高岭土片层之间的剥离 ,形成剥离型纳米复合材料 .该复合材料制备成电流变液出现了较大的协同效应 ,具有很好的电流变行为 ,并发现电流变性能与复合物中羧甲基淀粉的含量有密切关系更多还原

【Abstract】 In this paper, kaolinite/DMSO intercalate was used as precursor, and then carboxymethyl starch (CMS) was introduced by two-step intercalation to prepare kaolinite/CMS nanocomposite. According to the analysis of XRD, FTIR, SEM and EDS, it can be seen that the layers of kaolinite were exfoliated by the intercalation of carboxymethyl starch and the layers dispersed into the carboxymethyl starch. Kaolinite/CMS exfoliated nanocomposite obviously improves its electrorheological activity at direct current electric field. With the component ratio of the nanocomposite closing to 1∶1, a strong synergetic effect occurs and the optimum electrorheological effect can be attained. Furthermore, we also find that the electrorheological effect is associated with the content of CMS.更多还原