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New modified filler obtained by silica formed by sol–gel method
José A. F., Gamelas; Lourenço, Ana F.; Ferreira, Paulo J.This study focus on the modification of the particles of precipitated calcium carbonate (PCC) with silica formed in situ by sol–gel method. The new materials were characterized by several spectroscopic, analytical and microscopic techniques. A dense film of highly branched silica was formed at the surface of the scalenohedral PCC crystals. The amount of silica deposited at the PCC surface, as determined by ther...
Data: 2011
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Origem: Estudo Geral - Universidade de Coimbra
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