Počet záznamů: 1
Composite pigments based on surface coated kaolin and metakaolin
- 1.
SYSNO ASEP 0438732 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Composite pigments based on surface coated kaolin and metakaolin Tvůrce(i) Štengl, Václav (UACH-T) RID, ORCID, SAI
Popelková, Daniela (UACH-T) SAI
Matys Grygar, Tomáš (UACH-T) RID, SAI, ORCIDZdroj.dok. Applied Clay Science. - : Elsevier - ISSN 0169-1317
Roč. 101, NOV (2014), s. 149-158Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Kaolin ; Homogeneous hydrolysis ; Thioacetamide ; Urea ; Mullite ; Metakaolin Vědní obor RIV CA - Anorganická chemie CEP FR-TI1/006 GA MPO - Ministerstvo průmyslu a obchodu Institucionální podpora UACH-T - RVO:61388980 UT WOS 000345807700021 EID SCOPUS 84908371073 DOI 10.1016/j.clay.2014.07.030 Anotace Synthesis: The method of homogeneous hydrolysis of Fe, Co, Cr, Ni, Mn,Ti, Al, and Zn salts with urea in aqueous solutions in the presence of substrates (kaolin, metakaolin and mullite) was used for the preparation of composite pigments. In these composites individual kaolinite platelets were covered by a thin layer of hydroxide or oxy-hydroxides of selected metals, which were transformed into a metal oxide layer strongly bond to the aluminosilicate surface by heat treatment. An analogous method, homogeneous hydrolysis of thioacetamide in the presence of Cd and Zn salts was used for pigments based on sulphides. Characterization: The mineralogical composition of the pigments was identified by X-ray powder diffraction (XRD), the particle morphology was studied by transmission electron microscopy (TEM) and the color was characterized in CIEL*a*b colours coordinates. Results: The kaolin and metakaolin coated with layer of metal oxides are interesting new composite materials, obtained by a very simple preparation process at a low cost. (C) 2014 Elsevier B.V. All rights reserved. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2015
Počet záznamů: 1