The modification of nano-TiO_2with silane coupling agent KH-570,octanol and octanoyl was investigated。 According to the analysis of FT-IR,TG-DTA and XRD,the modifiers were bound on the surface of nano-TiO_2by chemical reactions,but did not alter the crystalline structure of nano-TiO_2。The results indicated that the modified nano-TiO_2exhibited better dispersion and stability in organic solvent,especially for the one modified by KH-570,which showed much higher hydrophobicity。The nano-TiO_2modified by KH-570could be uniformly dispersed in the acrylic resin without agglomeration。
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