Silicon-containing polyurethane oligomer and preparation method thereof

The invention relates to the field of high polymer materials, and more particularly to a silicon-containing polyurethane oligomer and a preparation method thereof. The silicon-containing polyurethane oligomer described by the invention contains isophorone diisocyanate, polypropylene oxide glycol and hydroxyl end capping silicone oil; and the silicon-containing polyurethane oligomer has the characteristics of better glossiness, low surface tension, good abrasive resistance, hydrophobicity, oleophobicity and the like. The silicon-containing polyurethane oligomer is used for a moisture cured PU (polyurethane) synthetic leather coating material, a PU synthetic leather modified and moisture cured polyurethane waterproofing paint and a polyurethane elastomer prepolymer; and another aim of the invention is to provide a preparation method of the silicon-containing polyurethane oligomer, which is convenient for industrial production. 本发明涉及高分子材料领域，更具体的说涉及种含硅聚氨酯低聚物及其制备方法，本发明所述的含硅聚氨酯低聚物，包括：异佛尔酮二异氰酸酯、聚氧化丙烯二醇、羟基封端硅油；该含硅聚氨酯