超声分散法制备聚酰亚胺/碳纳米管复合材料  

Preparation Polyimide/Carbon Nanotube Composites by Ultrasonic Dispersion Method

作　　者：罗冬冬[1] 马春龙[1] 闭其达[1] 曾小金[1] 刘洋[1] 

机构地区：[1]中南民族大学化学与材料科学学院催化材料科学湖北省暨国家民委-教育部共建重点实验室,武汉430074

出　　处：《中南民族大学学报（自然科学版）》2009年第2期27-30,共4页Journal of South-Central University for Nationalities：Natural Science Edition

基　　金：国家自然科学基金资助项目(2077410);中南民族大学大学生科研创新基金资助项目(Cxcy2008107)

摘　　要：以3,3′4,4′-二苯甲酮四羧酸二酐(BTDA)及4,4′-二氨基二苯基醚(ODA)为基本原料,采用超声分散法,掺入碳纳米管,制备了聚酰亚胺/碳纳米管复合材料.在不同超声时间、不同超声频率下对纳米粒子进行了分散研究,并对聚酰亚胺/碳纳米管复合材料结构表征,从力学性能,导电性能等方面进行了研究.研究表明:超声频率325Hz,超声时间90 min时,碳纳米管在聚酰亚胺膜中得到很好分散,聚酰亚胺/碳纳米管复合材料的力学性能和导电性能优于聚酰亚胺膜.Using 3,3＇4,4＇-benzophenonetetracarboxylicdianhydride （BTDA） and 4,4＇-diaminodiphenylether （ODA） as the basic raw materials and ultrasonic dispersion method as the main reaction tools, polyimide/carbon nanotube composites was prepared in the presence of carbon nanotubes, The ultrasonic dispersion reaction at different time and different frequency were studied. The mechanical and conductive properties of the composite materials were also studied. The results show that with ultrasound frequency of 325 Hz and ultrasonication time of 90 min, the carbon nanotubes were well dispersed in the polyimide film and the polyimide/carbon nanotube hybrid film has better mechanical and electrical properties than polyimide film.

关 键 词：聚酰亚胺 碳纳米管 超声分散 杂化膜 

分 类 号：O657.5[理学—分析化学] TB33[理学—化学]