Repairing polymers using oscillating magnetic field

Adv Mater. 2009 Dec 28;21(48):5011-5015. doi: 10.1002/adma.200901940. Epub 2009 Oct 1.


Repair of physically separated thermoplastic polymers containing γ-Fe2 O3 nanoparticles without sacrificing their mechanical properties is achieved by applying an oscillating magnetic field. As γ-Fe2 O3 nanoparticles oscillate at the frequency of the magnetic field, localized amorphous flow occur, and a permanent repair of physically separated polymeric films is achieved.

Keywords: magnetic nanoparticles; polymeric materials; self-repairing materials; thermoplastic polymers.