在碱性条件下制备的ＳｉＯ２溶胶，经旋转法镀膜，得到具有增透效果的膜层。结果表明随着与陈化温度和陈化时间密切相关的溶胶族团的粒度分布及交联行为直接影响膜层的增透效果，膜层增透效果与溶胶族团的特性间存在一定的内在规律。 The SiO2 sol prepared under alkaline conditions is coated by a rotating method to obtain a film with antireflective effect. The results show that there is a certain intrinsic relationship between the enhancement effect of the film and the characteristics of the sol-gel groups as the particle size distribution and cross-linking behavior of the sol groups closely related to the aging temperature and the aging time directly affect the antireflection properties of the film. law.