纳米导电不对称粒子的制备与表征

发布时间：2019-03-12 11:55

【摘要】：采用细乳液聚合的方法制备不对称粒子,并以聚苯胺乳液进行杂化,形成纳米导电不对称粒子。研究了引发剂种类和第二单体投料方式对不对称粒子的形貌和粒径的影响,并使用透射电子显微镜和粒径分析仪等对粒子进行表征。结果表明,当使用水溶性引发剂,第二单体以20 g×h~(-1)恒速滴加时,不对称粒子特征明显。使用聚苯胺乳液对不对称粒子进行改性,从而获得导电纳米材料。不对称粒子乳液中杂化聚苯胺乳液会使得粒子粒径变大;当不对称粒子和聚苯胺质量用量比例1:1,不对称粒子压片后电导率会阶段性升高。至此,由杂化方法成功制备了纳米导电不对称粒子。
[Abstract]:Asymmetric particles were prepared by microemulsion polymerization and were hybridized with Polyaniline emulsion to form nanometer conductive asymmetrical particles. The effects of initiator type and second monomer feeding mode on the morphology and particle size of asymmetric particles were studied. The particles were characterized by transmission electron microscopy (TEM) and particle size analyzer. The results show that when the water-soluble initiator is used and the second monomer is added at a constant rate of 20 g 脳 h ~ (- 1), the characteristic of the asymmetric particles is obvious. Conductive nano-materials were obtained by modifying asymmetric particles with Polyaniline emulsion. The hybrid Polyaniline emulsion in asymmetric particle emulsion can increase the particle size, and when the mass ratio of asymmetric particle to Polyaniline is 1? 1, the conductivity of asymmetric particle will increase step by step when the mass ratio of asymmetric particle to Polyaniline is 1? So far, nano-conductive asymmetric particles have been successfully prepared by hybrid method.
【作者单位】：常州大学材料科学与工程学院江苏省光伏科学与工程协同创新中心;
【基金】：国家自然科学基金(51577015) 江苏省产学研前瞻性联合研究项目(BY2014037-06)
【分类号】：TB383.1;TQ316.334

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