In this paper, first, the organically modified nano-silica was prepared by sol - gel method, and then as-prepared nano-silica was used to modify WRP.

• 本文首先采用溶胶-凝胶法制备有机改性纳米二氧化硅，然后利用制备好的纳米二氧化硅改性废胶粉（WRP）。