Hyperbranched polyurethane acrylate taking isocyanuric acid as core and preparation method thereof

The invention discloses hyperbranched polyurethane acrylate with isocyanuric acid as a core and a preparation method of the hyperbranched polyurethane acrylate. The hyperbranched polyurethane acrylate is prepared from the following substances through reaction: polyhydric alcohol taking isocyanuric acid as a core, at least one diisocyanate and at least one acrylic acid hydroxyl ester. Wherein the polyhydric alcohol taking the isocyanuric acid as the core is prepared by taking triglycidyl isocyanurate and diethanol amine as raw materials and carrying out reaction. The polyurethane acrylate oligomer not only inherits the high hardness, high wear resistance and high temperature resistance of an isocyanuric acid structure, but also improves the flexibility, water resistance and corrosion resistance, and is lower in viscosity and lower in production cost. 本发明公开了一种以异氰脲酸为核心的超支化聚氨酯丙烯酸酯及其制备方法；该超支化聚氨酯丙烯酸酯是利用以下物质反应制得：以异氰脲酸为核心的多元醇，至少一种二异氰酸酯，以及至少一种丙烯酸羟基酯。其中的以异氰脲酸为核心的多元醇是以异氰脲酸三缩水甘油酯和二乙醇胺为原料经反应制得。该聚氨酯丙烯酸酯低聚物不仅继承了异氰脲酸结构所具有的高硬