news Tris(dimethylaminopropyl)hexahydrotriazine wear resistance index enhancement scheme for polyurethane rollers in food packaging machinery 1. Introduction: Stage and Challenges of Polyurethane Roller In the field of food packaging machiner... 03/1944Tris(dimethylaminopropyl)hexahydrotriazine wear resistance index enhancement scheme for polyurethane rollers in food packaging machinery