纳米SiO_2粒子表面修饰研究

Study on Surface Modification of Nano-SiO_2

本文对纳米SiO2粒子表面采用偶联剂和甲基丙烯酸丁酯(BMA)进行修饰,使纳米SiO2表面形成化学键合的聚合物层,达到对纳米SiO2粒子表面修饰的目的。并通过FTIR、TEM和TG-DTA等分析手段,研究聚合改性物质的结构和改性后纳米SiO2粒子的分散稳定性。

Nano- SiO2 particles were modified by silane coupling agent and butyl methacrylate monomer under the action of initiating agent to accomplish the surface modification of nano - SiO2. FTIR, TEM and TG - DTA are used to show that new organic chains were introduced onto the surface of nano - SiO2 , then the structure and the dispersion stability of nano - SiO2 that was modified or not were discussed.