聚苯乙烯/聚邻甲基苯胺核-壳结构微球的制备及其电流变性能的分析  

Preparation of PS/PMANI core-shell microspheres and their electroreological performances

作　　者：陈盼盼 刘曌 郝博男 刘迎丹 CHEN Panpan;LIU Zhao;HAO Bonan;LIU Yingdan(State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao,Hebei 066004,China)

机构地区：[1]燕山大学亚稳材料制备技术与科学国家重点实验室,河北秦皇岛066004

出　　处：《燕山大学学报》2019年第2期124-132,共9页Journal of Yanshan University

基　　金：国家自然科学基金资助项目(21403186;21872118);河北省自然科学基金资助项目(E2015203257)

摘　　要：通过种子溶胀-释放法制备了聚苯乙烯/聚邻甲基苯胺(PS/PMANI)核-壳结构微球,并且通过采用不同粒径的PS种子微球实现了对核-壳结构粒径的调控。用扫描电子显微镜(SEM)和傅里叶红外光谱(FT-IR)测试对其形貌和化学结构分别进行了表征。将制备的核-壳结构微球作为电流变响应材料,研究了粒径变化对其电流变性能的影响。结果表明,成功制备了单分散核-壳结构微球,相同投料比(PS∶MANI=3∶1)条件下,随PS种子微球粒径增加,PMANI壳层的厚度也逐渐增加。不同粒径微球的电流变液均能表现出良好的电流变效应,且随着微球粒径及壳层厚度的增加,其电流变液在相同电场下具有更高的电流变效率。Polystyrene/poly(2-methylaniline)(PS/PMANI)core-shell microspheres were prepared by seeded swelling-releasing method and the size of the core-shell particle was controlled by using PS seeds with difference diameters.The morphology and chemical structure were characterized by scanning electron microscopy(SEM)and Fourier transform infrared spectroscopy(FT-IR).The core-shell microspheres were used as electrorheological materials and the effect of particle size and shell thickness on electrorheological properties was studied.The results showed that monodisperse core-shell microspheres were successfully prepared and the thickness of PMANI shell gradually increases with the increase of particle size of PS seeds at the same feed ratio.The PS/PMANI core-shell microspheres with different particle sizes all exhibited good electrorheological effect.With the increase of the particle size and the thickness of the PMANI shell,the electrorheological fluid has higher ER efficiency under the same electric field.

关 键 词：电流变液 核-壳结构微球 电流变效率 介电常数 

分 类 号：TB381[一般工业技术—材料科学与工程]