Single-component high-elasticity high-strength polyurethane coating and preparation method thereof

The invention belongs to the technical field of coatings, and discloses a single-component high-elasticity high-strength polyurethane coating and a preparation method thereof. The invention discloses a single-component polyurethane coating with high elasticity and high strength, which is prepared from soybean oil-based polybasic and polyisocyanate monomers, a latent curing agent, filler, polytetrahydrofuran, 2, 2-bis (hydroxymethyl) propionic acid, a thixotropic agent and a chain extender. The polyurethane coating prepared by the invention does not need to be mixed and prepared on site during construction, and can be brushed and sprayed; a coating film formed by the coating is good in flexibility, high in strength and excellent in wear resistance, weather resistance and flame retardance, and almost has no bubbles during film forming; meanwhile, the coating also has excellent storage stability. 本发明属于涂料技术领域，本发明公开了一种单组分高弹性高强度聚氨酯涂料及其制备方法。本发明公开的单组分高弹性高强度聚氨酯涂料，由大豆油基多元、多异氰酸酯单体、潜固化剂、填料、聚四氢呋喃、2,2-双(羟甲基)丙酸、触变剂和扩链剂组成。本发