Effect of silane-coupling agents on synthesis and character of core-shell SiO2 magnetic microspheres

被引：26
作者：
Lou, Min-yi
Wang, De-ping
Huang, Wen-hai
Chen, Dong
Liu, Bing
机构：
[1] Tongji Univ, Sch Mat Sci & Engn, Shanghai 200092, Peoples R China
[2] Shanghai Key Lab Met Mat, Shanghai 200092, Peoples R China
[3] SE Univ, Sch Architecture, Nanjing 210096, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2006年 / 305卷 / 01期
基金：
中国国家自然科学基金;
关键词：
silane-coupling agents; magnetic microspheres (MMS); sol-gel method;
D O I：
10.1016/j.jmmm.2005.11.038
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The core-shell SiO2 magnetic microspheres (MMS) were prepared through sol-gel method. The transmission electron microscope (TEM), X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR) and vibrating sample magnetometer (VSM) were used to characterize the appearance, phase, functional groups on the surface and the magnetic character of the SiO2 MMS. The influence of silane-coupling agents on the preparation of SiO2 MMS was studied and the results show that the selection of silane-coupling agents and the coupling process are important to the preparation Of SiO2 MMS. The SiO2 MMS obtained exhibit the excellent super-paramagnetism behavior and keep the good magnetic response. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：83 / 90
页数：8
相关论文
共 14 条
[1]  
ARKLES B, 1977, CHEMTECH, V7, P766
[2]   Manipulation of the magnetic properties of magnetite-silica nanocomposite materials by controlled Stober synthesis [J].
Barnakov, YA ;
Yu, MH ;
Rosenzweig, Z .
LANGMUIR, 2005, 21 (16) :7524-7527
[3]   Nanoengineering of inorganic and hybrid hollow spheres by colloidal templating [J].
Caruso, F ;
Caruso, RA ;
Möhwald, H .
SCIENCE, 1998, 282 (5391) :1111-1114
[4]   Synthesis of macroporous minerals with highly ordered three-dimensional arrays of spheroidal voids [J].
Holland, BT ;
Blanford, CF ;
Stein, A .
SCIENCE, 1998, 281 (5376) :538-540
[5]  
Lou M., 2004, SHANGHAI J BIOMED EN, V25, P14
[6]  
[娄敏毅 Lou Minyi], 2005, [建筑材料学报, Journal of building materials], V8, P169
[7]  
MIG D, 2001, J MAGN MAT DEV, V32, P1
[8]   Composition effects on the mechanical properties of microemulsion-made core/shell polymers [J].
Rabelero, M ;
López-Cuenca, S ;
Puca, M ;
Mendizábal, E ;
Esquena, J ;
Solans, C ;
López, RG ;
Puig, JE .
POLYMER, 2005, 46 (16) :6182-6191
[9]   Use of magnetic techniques for the isolation of cells [J].
Safarik, I ;
Safaríková, M .
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES, 1999, 722 (1-2) :33-53
[10]   SWELLING OF OLIGOMER-POLYMER PARTICLES - NEW METHODS OF PREPARATION OF EMULSIONS AND POLYMER DISPERSIONS [J].
UGELSTAD, J ;
MORK, PC .
ADVANCES IN COLLOID AND INTERFACE SCIENCE, 1980, 13 (1-2) :101-140
12