Abstract: Acrylate modified silicone resin was synthesized by modification of silicone prepolymer that contained polymerizable double bond with acrylic monomers. The coating surface could exhibit microtopographies after cured by triethylenetetramine. The exist of microtopographies caused the increase of static contact angle and the increase of hydrophobicity of coating film, compared with the pure silicone resin coating. When the proportion of silicone prepolymer and acrylic monomers was 1: 1 and the content of acrylonitrile in the acrylate monomers was 15%~25%, the surface microtopographic showed more regularity than others. And the seawater immersion tests showed a stable surface microtopographies of the acrylate modified silicone and good adhesion, which could be used in long-term seawater immersion entironment.

Key words: acrylate-modified, silicone resin, surface microtopography, preparation

摘要： 采用丙烯酸类单体对含可聚合双键的有机硅预聚物进行改性，合成丙烯酸改性有机硅树脂。 使用三乙烯四胺固化后，涂层表面形成规律性的微结构形貌，微结构的存在使得改性树脂涂层表面的静态水接触角比纯硅树脂的大，疏水性增强。 当有机硅预聚物与丙烯酸类单体含量比为 1 ∶1、丙烯酸类单体中丙烯腈含量为15%~25%时，改性树脂涂层表面微结构形貌规律性较好。 海水浸泡实验表明，丙烯酸改性有机硅树脂涂层表面微结构形貌较稳定，且附着力较好，可适应长期海水浸泡环境。

关键词: 丙烯酸改性, 有机硅树脂;表 面微结构, 制备