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本文采用无皂乳液聚合法，使甲基丙烯酸甲酯（ＭＭＡ）在ＴｉＯ２粒子表面进行聚合，得到了以ＴｉＯ２粒子为核，聚甲基丙烯酸甲酯（ＰＭＭＡ）为壳的复合粒子，ＴｉＯ２粒子表面由此得到改性研究了ＴｉＯ２表面聚合物成膜的条件，用ＴＥＭ证实了表面聚合物膜的存在，运用ＩＲ和ＤＴＡ对复合粒子进行了表征，并利用Ｚｅｔａ电位，接触角的测定及分散性试验对改性前后ＴｉＯ２的表面性质进行了研究。
In this paper, soap-free emulsion polymerization was used to polymerize methyl methacrylate (MMA) on the surface of TiO2 particles. The composite particles with TiO2 particles as core and PMMA as shell were obtained. The surface of TiO2 particles The conditions for the film formation of the polymer on the TiO2 surface were studied. The existence of the polymer film was confirmed by TEM. The composite particles were characterized by IR and DTA. The Zeta potential, the contact angle and the dispersibility The surface properties of TiO2 before and after modification were studied.