二氧化硅溶胶及其自组装薄膜的制备  

Preparation of Silica Sois and Self-assembled Thin Films

作　　者：许标[1] 许丕池[2] 何林[1] 何方方[2] 

机构地区：[1]四川师范大学物理系,成都610066 [2]西南科技大学材料学院,绵阳621010

出　　处：《材料导报》2005年第11期131-132,135,共3页Materials Reports

基　　金：国防基础科学研究项目(K12030611091);西南科技大学青年预研基金项目(200500109)

摘　　要：以氨水为催化剂,通过水解正硅酸乙酯制备了乳白色二氧化硅溶胶,采用静电自组装薄膜技术制备了聚电解质/二氧化硅复合薄膜,并通过热处理制备了二氧化硅薄膜。采用透射电镜、红外光谱仪、721分光光度计对二氧化硅溶胶和薄膜进行了分析。Translucent SiO2 sols are prepared from TEOS using NH3 · H2O as catalyzer, polyelectrolyte/ SiO2 composite films are fabricated via electrostatic self-assembly multilayer method, and SiO2 thin films are formed by heat-treating the polyelectrolyte/SiO2 composite films to eliminate the polyelectrolyte and other components in compos ite films. The prepared SiO2 sols, polyelectrolyte/SiO2 composite films and SiO2 thin films are investigated with transmission electron microscope, fourier transform infrared spectrophotometer and 721 spectrophotometer.

关 键 词：二氧化硅 溶胶 静电自组装 薄膜 

分 类 号：O484.4[理学—固体物理]