A polymer foam is produced comprising a polymer and nanoparticles having a maximum dimensionof 750 nm, which foam has cells with an average cell size of at most 1 µm and a cell density of at least 1012 cells/ml, wherein polymeric grafts have been attached to the nanoparticles. The nanoparticles may be particles with a solid core or porous hollow core-shell particles. The foam can be manufactured by dispersing the nanoparticles in a polymer to yield a dispersion; by adding a blowing agent to the dispersion to obtain an expandable mixture; and by foaming the expandable mixture to obtain the polymer foam.
|Patent number||WO2014073960 A1|
|Publication status||Submitted - 15 May 2014|
Vancso, G. J., Duvigneau, J., Nederkoorn, P. H. J., & Wassing, T. (2014). Polymer foam comprising a polymer and nanoparticles, and nanoparticles for the manufacture of such foam.. Manuscript submitted for publication. (Patent No. WO2014073960 A1).