Study on Castor Oil-based Cationic Waterborne Polyurethane and Its Application

Abstract The raw material for polyurethane synthesis is mainly polyols, while traditional polyols come from fossil resources. With the decrease of fossil resources, the synthesis of polyurethane by vegetable oil-based polyols has gradually gained more attention. Castor oil is a kind of plant oil-based polyols, which are the most suitable plant oil polyols because of its non-toxic, biodegradable and trihydroxy structure. Polyurethane synthesized with castor oil as a polyol has many special properties, such as good antibacterial properties, anti-UV properties, good biocompatibility and biodegradable properties. This paper explores the performance and application of castor oil-based cationic waterbased polyurethane (CWPU), which is helpful to promote its performance research and wider application.