Effects of ferromagnetic particle on heating behavior of thermoplastic polyurethane adhesive film by induction heating

​The heating behavior of micrometer-sized Fe ferromagnetic particle-embedded thermoplastic polyurethane adhesive (TPU) under induction heating is examined in this study. The effects of particle size and content, TPU film thickness, and output power of the induction heater were considered. According to this study, heat generation, including the heating rate and maximum temperature, is proportional to the size and content of Fe particles. Greater film thickness and output power also led to higher heat generation. The permeability of the micrometer-sized Fe particles is the most important parameter for higher heat generation of TPU films with larger Fe particles.

Keywords: Induction heating, Thermoplastic Polyurethane, Curie temperature, Susceptor, Fe