Release-ability of nano fillers from different nanomaterials

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The nanoparticles are finding new industrial applications every day in fields as diverse as electronics, biomedicine, pharmaceutics, cosmetology, chemical catalysis, new materials, and others. We are about to witness the advent of a new era in the industrial history of nanoparticles. Nevertheless, this new industry can develop dynamically only if the safety issues are solved during all the life cycle long of the nano products: from fabrication to the end of life through usage. Due to the complexity of the nano toxicology, it will probably take decades to identify the dangerous nanoparticles and even a longer time to declare some of the nanoparticles as benign. One of the pragmatic ways to secure the nanomaterials today consists in reducing the exposure to nanoparticles of the potentially exposed workers, the consumers and the Environment close to zero. During the last years, CEA developed different methods to evaluate the release ability of nanoparticles from nano products by wet and dry abrasions in order to mimic realistic solicitations in use. The objective of developing such measurement techniques is double: optimization of the “hooking” of the nanoparticles in the matrix and perhaps one day, qualifying the nano products before market introduction. This paper summer up the different steps which were necessary to setup the methods to evaluate the release ability of nanomaterials and discuss the results obtained on fabrics, paints and polymers containing nano fillers.

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Journal: TechConnect Briefs
Volume: 1, Nanotechnology 2011: Advanced Materials, CNTs, Particles, Films and Composites
Published: June 13, 2011
Pages: 495 - 498
Industry sector: Advanced Materials & Manufacturing
Topics: Advanced Materials for Engineering Applications, Composite Materials
ISBN: 978-1-4398-7142-3