Pullulan Films with PCMs: Recyclable Bio-Based Films with Thermal Management Functionality

The use of phase-changing materials (PCMs) is a practical and powerful way buffering thermal fluctuations maintaining the isothermal nature storage process. In this study, melamine formaldehyde microcapsules with paraffin cores were used as PCMs; pullulan films PCMs prepared by film-casting method; composite analysed regard to their chemical structure, properties, stability, recyclability. Uniform displaying management functionality prepared. amount 75 wt.% PCM added film structure which enabled preparation that displayed 104.85 J g−1 heat during heating 103.58 release cooling. Multiple cooling cycles showed maintained after multiple heating-cooling cycles. could be recovered yield approximately 95% application simple dissolution filtration morphology, properties recovery bio-based recyclability are proposed an innovative, practical, effective system for thermoactive packaging applications.