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聚苯乙烯/丙烯酸丁酯/纳米碳酸钙复合微粒的制备与表征
引用本文:张雪琴,毋伟,曾晓飞,陈建峰.聚苯乙烯/丙烯酸丁酯/纳米碳酸钙复合微粒的制备与表征[J].北京化工大学学报(自然科学版),2005,32(1):1-4.
作者姓名:张雪琴  毋伟  曾晓飞  陈建峰
作者单位:北京化工大学纳米材料先进制备技术与应用科学教育部重点实验室;教育部超重力工程研究中心, 北京 100029
基金项目:国家自然科学基金 , 教育部科学技术研究项目
摘    要:将苯乙烯(St)、丙烯酸丁酯(BA)在纳米碳酸钙粒子存在下的水相悬浮液中进行无皂乳液聚合,制备纳米碳酸钙聚合物复合微粒。通过透射电镜(TEM)、红外光谱(IR)、热重(TG)等手段对其进行表征,证明通过该工艺可以实现聚合物在纳米碳酸钙表面的包覆。复合微粒与纳米碳酸钙相比,耐酸性明显增强;ξ电位发生了变化,复合粒子表面的电性发生了很大的变化

关 键 词:纳米碳酸钙  无皂乳液聚合  包覆  表征  纳米碳酸钙  无皂乳液聚合  包覆  表征
收稿时间:2004-04-16
修稿时间:2004年4月16日

Preparation and characterization of polystyrene/butyl acrylate/nano-CaCO3 composites
ZHANG Xue,qin WU Wei ZENG Xiao,fei CHEN Jian,feng.Preparation and characterization of polystyrene/butyl acrylate/nano-CaCO3 composites[J].Journal of Beijing University of Chemical Technology,2005,32(1):1-4.
Authors:ZHANG Xue  qin WU Wei ZENG Xiao  fei CHEN Jian  feng
Affiliation:Key Lab for Nanomaterials, Ministry of Education; Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
Abstract:By means of a soapless emulsion polymerization method, the polymerization of styrene(St) and butyl acrylate (BA) on the surface of nano CaCO3 in an aqueous phase was carried out.The interactions between the nanoparticles and the polymer were studied by thermogravimetric(TG) measurement, Fourier transform infrared spectrograph (FTIR) and transmission electron microscopy (TEM). It is found that there is an interfacial interaction between the polymer and the nano CaCO3 by this process. By comparison of the nano CaCO3 and the composites, the acid resistance of the composites is increased to some extent, Zeta potentials (ζ) and the surface electricity of the particles are greatly changed after encapsulation.
Keywords:nano  CaCO_3  soapless  emulsion  polymerization  encapsulation  characterization
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