纳米SiO_2的两种氨基化改性方法效果比较

Comparison of Two Different Methods of Producing Aminated Nano-silica

利用微乳液法制得的纳米SiO2粉体,尝试了两种不同的氨基化改性方式,利用傅立叶红外和酸碱滴定仪检测比较了两种改性手段的效果。结果表明,这两种方法都可以使纳米SiO2上导入氨基,在微乳液体系内直接导入氨基化试剂效果较好,它的氨基导入量约为在成品纳米SiO2表面上导入氨基的量的3倍。

Nano- silica particles was abtained in W/O microemulsion system. And two different method were used to prove the character of aminated nano - silica, and their effects were compared by the way of IR spectra and titration modified. It showed that both methods worked successfully. While the effect of modified nano - silica in the microemulsion did well than the modified nano-silica 3 times than the latter. by dry products, and its content of amidocyanogens was nearly