Fluorine-containing silane coupling agent compound as well as preparation method and application thereof

The invention discloses a fluorine-containing silane coupling agent compound as well as a preparation method and application thereof. Firstly, epoxy siloxane and fluorine-containing carboxylic acid are subjected to an epoxy ring-opening reaction to generate a hydroxyl fluorine-containing intermediate, and then the hydroxyl fluorine-containing intermediate reacts with isocyanate siloxane to prepare the silane coupling agent with high siloxane content. The silane coupling agent is used in the UV low-refractive-index optical fiber coating and has excellent adhesion and water resistance. 本发明公开了一种含氟硅烷偶联剂化合物及其制备方法、应用；首先是环氧基硅氧烷与含氟羧酸发生环氧基开环反应生成羟基含氟中间体，然后再与异氰酸酯基硅氧烷反应，制备出含有较高硅氧烷含量的硅烷偶联剂。该硅烷偶联剂用在UV低折光纤涂料中，具有较优异的附着和抗水性能。