【作者】 卢秀首； 乔秀颖； 龚兴龙； 杨涛； 李伟； 孙康； 李盟； 杨康； 谢宏恩； 殷奇； 王东； 陈晓东；

【Author】 LU Xiushou~1,QIAO Xiuying~(1*),GONG Xinglong~2,YANG Tao~3,LI Wei~1,SUN Kang~1,LI Meng~1, YANG Kang~1,XIE Hongen~1,YIN Qi~1,WANG Dong~1,CHEN Xiaodong~3 (1.State Key Laboratory of Metal Matrix Composites,Shanghai Jiaotong University,Shanghai 200240,China; 2.Department of Modern Mechanics,University of Science and Technology of China(USTC),Hefei 230027,China; 3.Shanghai Sunny New Technology Development Co.,Ltd.,Shanghai 201108,China)

【机构】 上海交通大学金属基复合材料国家重点实验室； 中国科学技术大学近代力学系； 上海日之升新技术发展有限公司；

【摘要】 用聚苯乙烯-乙烯-丁烯-苯乙烯(SEBS)三嵌段热塑性弹性体替代传统橡胶作为基体制备得到新型热塑性磁流变弹性体(MRE),具有机械性能优良、耐候性好、加工简单、可回收利用、便于规模化制备等优点。磁性颗粒羰基铁粉在基体中均匀分布,没有发生团聚现象。各向异性SEBS基MRE具有比各向同性SEBS基MRE更高的储能模量和磁流变效应,各向异性材料制备时加载的磁场强度越高,得到的MRE材料的储能模量越高,相对磁流变效应越大,但制备时加载的磁场强度达到饱和后,MRE材料的储能模量和磁流变效应不再发生变化。更多还原

【Abstract】 In this paper thermoplastic elastomer poly(styrene-emylene-butylene-styrene)(SEBS) triblock copolymer was utilized to substitute the conventional rubber as matrix to prepare the novel thermoplastic magnetorheological elastomer(MRE) materials,which exhibits the advantages of excellent mechanical and climate-proof properties—simple processing,easy recycling and convenient large-scale preparation. Magnetic carbonyl iron particles are even dispersed randomly in the SEBS matrix without aggregation. Anisotropic SEBS MRE composite shows greater storage modulus and magnetorheological effect(MR effect) than isotropic SEBS MRE composite does.The increase of the magnetic field intensity during fabrication of anisotropic SEBS MRE composite helps to increase the shear storage modulus and MR effect of the MRE materials,but when the saturation magnetization is attained in preparation,the equilibrium storage modulus and the MR effect will not be further increased.更多还原