智能磁性水凝胶的动态黏弹性行为  

Dynamic Viscoelastic Behavior of Intelligent Magnetic Hydrogels

作　　者：田晓莉[1,2,3] 宋现芬[1] 王宝祥[1,2,3] 郝春成[1,2] 陈克正[1] 

机构地区：[1]青岛科技大学材料科学与工程学院,山东青岛266042 [2]西安交通大学电力设备电气绝缘国家重点实验室,陕西西安710049 [3]四川大学高分子材料工程国家重点实验室,四川成都610065

出　　处：《青岛科技大学学报（自然科学版）》2015年第3期302-307,共6页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：山东省优秀中青年科学家科研奖励基金项目(BS2011CL016);高分子材料工程国家重点实验室开放课题基金资助项目(KF201303);电力设备绝缘国家重点实验室资助项目(EIPE13210)

摘　　要：先采用溶剂热法制备两种Fe3O4纳米颗粒,再将Fe3O4纳米颗粒分散在甲醛交联壳聚糖水凝胶中以获得Fe3O4智能凝胶,制备出一种新型、绿色的智能水凝胶。采用X射线衍射仪、扫描电镜、流变仪等对产物的形貌结构和性能等进行分析表征。通过采用不同原料配比制备得到了一系列交联的水凝胶,通过施加和不施加磁场,分别获得取向和未取向型磁性水凝胶。重点研究了磁性水凝胶的动态黏弹性行为。磁性粒子的加入提高了体系的储能模量。Two kinds of Fe304 nanoparticles were produced by solvothermal method. Then the Fe304 nanoparticles were dispersed in formaldehyde crosslinking chitosan hy- drogel in order tO obtain Fe3O4 smart gel, which prepared a green new type of intelligent hydrogels. It was investigated the morphology, structure and viscoelastic properties of the experimentally obtained product by XRD, SEM and rheometer. A series of crosslinked hydrogels were obtained in this experiment by different materials ratios. We respectively gain orientation type and non orientation type magnetic hydrogels with and without applying the magnetic field. This paper studies the dynamic viscoelastic mainly and concluded that magnetic particles can improve the storage modulus.

关 键 词：磁性水凝胶 智能材料 溶剂热法 纳米FE3O4颗粒 

分 类 号：TB383[一般工业技术—材料科学与工程]