08/20/2010

Characterization of Nanoparticle Release from Surface Coatings by the Simulation of a Sanding Process

Nanoparticles are used in industrial and domestic applications to control
customized product properties. But there are several uncertainties concerning
possible hazard to health safety and environment. Hence, it is necessary to
search for methods to analyze the particle release from typical application
processes. Based on a survey of commercial sanding machines, the relevant
sanding process parameters were employed for the design of a miniature sanding
test setup in a particle-free environment for the quantification of the
nanoparticle release into air from surface coatings. The released particles
were moved by a defined airflow to a fast mobility particle sizer and other
aerosol measurement equipment to enable the determination of released particle
numbers additionally to the particle size distribution. First, results revealed
a strong impact of the coating material on the swarf mass and the number of
released particles.


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AplusA-online.de - Source: Annals of Occupational Hygiene