Dresden 2014 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 41: Nanoparticles and Composite Materials
CPP 41.12: Vortrag
Donnerstag, 3. April 2014, 12:30–12:45, ZEU 222
Method for quantitative and qualitative detection of nanosized particles emitted from paper and packaging materials — •Volker Uhl1, Ricardo Vizcaya1, and Andreas Kornherr2 — 1Austrian Research Institute for Chemistry and Technology (OFI), Vienna, Austria — 2Mondi Uncoated Fine & Kraft Paper GmbH, Austria
Paper is a complex material which consists of an organic fiber matrix with embedded inorganic filler particles and various different additives. Such a compound material tends to the emission of various fiber fragments, filler particles, and additive residues when being exposed to mechanical stress. We present the acoustic dust tester - a new method to qualitatively and quantitatively determine particulate matter emissions in the nanosized range from paper surfaces: In a measuring chamber the paper is exposed to a well defined mechanical stress induced via acoustic waves. The exit air from the chamber is led to aerosol characterizing and sampling instruments, e.g. a condensation particle counter and an electro-mobility spectrometer. We present the concentration and particle size distribution of emitted nanoparticles from a number of different paper and packaging materials determined via this method. The detection of nanoparticles is of increasing importance both because a very low level of paper dusting is a quality characteristic for high grade papers and also to ensure that any possible health risks arising from small respirable dust particles due to the handling of paper can be completely excluded.