In JoVE (2)
Articles by Martin Morgeneyer in JoVE
Desenvolvimento de uma instalação experimental para a medição do coeficiente de restituição sob condições de vácuo Sven Drücker1, Isabell Krautstrunk2, Maria Paulick2, Khashayar Saleh1, Martin Morgeneyer1, Arno Kwade2 1Industrial Process Engineering, University of Technology of Compiègne, 2Institute for Particle Technology, Technische Universität Braunschweig O coeficiente de restituição é um parâmetro que descreve a perda de energia cinética durante a colisão. Aqui, uma configuração de queda livre sob condições de vácuo é desenvolvido para ser capaz de determinar o coeficiente de restituição parâmetro para partículas na gama do micrómetro com altas velocidades de impacto.
Protocolo Experimental para investigar Particle aerossolização de um produto Segundo abrasão e Sub Weathering Ambiental Neeraj Shandilya1,2, Olivier Louis Le Bihan1, Christophe Bressot1, Martin Morgeneyer2 1 Neste artigo, um protocolo experimental para investigar aerossolização de partículas de um produto sob a abrasão e sob intemperismo ambiental é apresentada. Resultados sobre a emissão de nanomateriais, sob a forma de aerossóis são apresentados. O específica experimental set-up é descrito em detalhes.
Other articles by Martin Morgeneyer on PubMed
Emission of Titanium Dioxide Nanoparticles from Building Materials to the Environment by Wear and Weather Environmental Science & Technology. Feb, 2015 | Pubmed ID: 25590625 In the present work, we investigate the effect of weathering duration on a commercial photocatalytic nanocoating on the basis of its nanoparticle emission tendency into two media, air and water. It is found that increased weathering duration results in stepwise structural deterioration of the nanocoating, which in turn decreases the nanocoating life, changes the nanocoating removal mechanism, and increases the particle emission concentration. Emission of free TiO2 nanoparticles is found to be weathering duration dependent. Three quantities are introduced: emission transition pace (ETP), stable emission level (SEL), and stable emission duration (SED). By linear extrapolation of these quantities from short weathering durations, complete failure of the nanocoatings can be predicted and, moreover, the potential increase of nanoparticles release into the air.
Environmental Release of Engineered Nanomaterials from Commercial Tiles Under Standardized Abrasion Conditions Journal of Hazardous Materials. May, 2016 | Pubmed ID: 27321746 The study presented here focuses on commercial antibacterial tiles whose emissivity of (nano) particles due to abrasion has yet barely been investigated. The tiles have been characterized regarding their surface properties and composition throughout their chain-of-use, i.e. from their state of commercialization until the experimental end-of-service life. In contrast to plane standard tiles, their surfaces form hilly surfaces. In the depressions, titanium dioxide is found at the surface, thus theoretically protected by the hilly areas against abrasion on the tile's surface. Furthermore, a deposition technique has been put in place by producers allowing for coating the before mentioned commercial tiles with titanium dioxide, thus being similar to those commercially available. It consists in depositing titanium dioxide on the surface, latter one allowing fixing the first. This development allows for better understanding the future options for product formulation and thus improvement with respect to particle release. The tests reveal the aerosolization from commercial antibacterial tiles of micronic and submicronic particles in the inhalable region or particles that can subjected to be released in the environment (