| abstract |
The invention discloses a method for modifying waterborne polyurethane by using an antibacterial agent PHMG, which belongs to the field of green functional polymer materials. The waterborne polyurethane includes an anionic waterborne polyurethane system, a cationic waterborne polyurethane system and a non-ionic waterborne polyurethane system; Modification of anionic waterborne polyurethane system by using antibacterial agent PHMG by pre-emulsification method or phase inversion method; using antimicrobial agent PHMG by pre-emulsification method, phase inversion method or post-dropping method Modification of waterborne polyurethane systems. The invention adopts the antibacterial agent PHMG to modify the water-based polyurethane, the process is simple, green and environmentally friendly, and the obtained modified product has excellent antibacterial performance; compared with other inorganic and organic synthetic antibacterial agents, PHMG is simple to prepare, low in cost, low in dosage, and antibacterial. Good performance; by introducing PHMG, the antibacterial and mechanical properties of waterborne polyurethane are improved. |