Preparation and Properties of Polyurethane Nano - inorganic Composite Environmentally Friendly Building Materials

Abstract

Waterborne polyurethane is a polyurethane binary collagen system with water as the dispersion medium. It has the advantages of environmental protection, strong adhesion, high hardness, good flexibility, good air permeability and non-flammable. Therefore, waterborne polyurethanes can be used in the fields of coatings, leather, ink, textile, adhesives and building materials. In addition, it can also be used for special functional materials. However, compared with solvent-based polyurethane, water-based polyurethane has many shortcomings, such as water resistance, mechanical properties and heat resistance are not very good. Therefore, in order to improve the overall performance of waterborne polyurethane, we synthesized new water-based polyurethane.