低温等离子体对纳米材料表面引发接枝聚合方法

A new technology for surface modification of nanosized powder material

简单介绍了传统的对纳米粉体表面改性的方法,同时在实验的基础上自行发展的一种新的利用低温等离子体对纳米材料表面引发接枝聚合改性的方法,通过红外(FT-IR)、X射线光电子能谱(XPS)以及热失重分析(TGA)测试表明该聚合膜是通过化学键连接在纳米粉体表面的,X射线衍射光谱(XRD)表明经等离子体处理改性的纳米粉体只是其表面性质发生了改变,其晶体结构并没有发生任何变化。

The traditional methods about surface modification of nanoparticles were summarized.And a new method,low-temperature plasma induced grafting polymerization onto nanosized powder for surface modification of nanoparticles,which was developed by the authors,was also depicted.FT-IR,XPS and TGA results reveal that the polymer is grafted onto the surfaces of nanosized powder,and the crystal structure of the silicon nanosized powder observed with XRD spectra was unchanged before and after plasma graft polymerization.