The role of varios ultrasonic welding horns on the adhesion strength ofthermoplastic polyurethane

Thermoplastic polyurethane (TPU) is versatile recyclable polymer and widely used in enourmousindustries. Ultrasonic welding, a type of friction welding, joins materials through high-frequencyultrasonic vibrations, creating strong bonds due to intermolecular and surface friction. TPU weldingwere achieved by energy directors or horns. Horns focus on ultrasonic vibrations and normal pressurein the localized area of the weld. The weld strength of TPU created using various horn designs. Thegrooved horn shows higher weld strength and energy efficiency against other horn types. It isattributed to its superior penetration depth, which reveals deeper penetration depth of TPU chains atinterface. This finding underscores the importance of horn design and normal pressure on weldingarea to optimiz the welding strength of TPU for diverse industrial applications.

کلیدواژه ها:

Processing ، welding ، ultrasonic ، thermoplastic polyurethane