The effect of magnetic field-induced orientation of fillers on the performance of starch composite films.

The novel starch-based film with superior gas barrier properties was developed for food packaging applications. Magnetic montmorillonite (MMT) was successfully prepared and achieved an oriented arrangement within the starch composite matrix, creating a highly oriented structure. The addition of MMT led to higher molecular chain entanglement in the starch composite system during the hot process, resulting in increased viscosity.