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Materiale Plastice
https://doi.org/10.37358/Mat.Plast.1964

Impact factor: 1.393

OSIM Nr. R102356
ISSN 0025-5289
ISSN 2668-8220 (online)
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Materiale Plastice, Volume 50, Issue 1, pp. (2013)




Gabriel Vasilievici, Dorin BomboS, Mihaela BomboS, Traian Juganaru Nanoparticule pentru composite asfaltice obtinute prin macinare


Abstract:
Multitude of methods for the synthesis of nanoparticles express interest and importance of this field. In the present study, are addressed the aspects of obtaining nanoparticles by milling, in order to be used at nanostructured coatings in asphalt. Materials used for obtaining nanoparticles were powdery volcanic tuff with 0.4-1.6 mm grain and calcium carbonate. Stearic acid, sodium lauryl ether sulphate, a mixture of fatty acid imidazoline, a block copolymer polyethylene oxide- polipropilenoxid -polyethylene oxide and polyethylene glycol were used as additives. For grinding of inorganic particles was used a laboratory planetary mill Fritsch Pulverisette 6, equipped with a stainless steel grinding bowl. Grinding dry powdered volcanic tuff in the presence of additives influences particle size distribution. Wet milling of powdered volcanic tuff in the presence of ROT favours getting a bimodal distribution and decreasing the average particle size. Keywords: nanoparticles, grinding, additives, particle size distribution



Issue: 2013 Volume 50, Number 1
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