Silver nanoparticles in blends of polyethylene and a superabsorbent polymer: morphology and silver ion release

0359411 - ÚMCH 2012 RIV DE eng J - Journal Article
Stará, Hana - Starý, Z. - Münstedt, H.
Silver nanoparticles in blends of polyethylene and a superabsorbent polymer: morphology and silver ion release.
Macromolecular Materials and Engineering. Roč. 296, č. 5 (2011), s. 423-427. ISSN 1438-7492. E-ISSN 1439-2054
Institutional research plan: CEZ:AV0Z40500505
Keywords : electron microscopy * morphology * nanoparticles
Subject RIV: CD - Macromolecular Chemistry
Impact factor: 1.986, year: 2011

Antimicrobial properties of polymer materials are required in many applications. The polyethylene/superabsorbent polymer (PE/SAP) blends containing silver nanoparticles were successfully prepared via thermal reduction during melt mixing. It was found that in situ formed silver nanoparticles are preferentially located at the interface between PE matrix and SAP particles. The expectation was that the low water uptake of the PE will be enhanced by blending with a SAP and thus the silver ion release from the material will increase. Surprisingly, the silver ion release was markedly suppressed by the addition of SAP. This finding is explained by the preferential sorption of silver ions by the SAP particles.
Permanent Link: http://hdl.handle.net/11104/0197207