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Anticorrosion properties of inorganic pigments surface-modified with a polyaniline phosphate layer
Authors: Kalendová Andréa | Veselý David | Stejskal Jaroslav | Trchová Miroslava
Year: 2008
Type of publication: článek v odborném periodiku
Name of source: Progress in Organic Coatings
Publisher name: Elsevier Science BV
Place: Amsterdam
Page from-to: 209-221
Titles:
Language Name Abstract Keywords
cze Antikorozní vlastnosti anorganických pigmentů povrchově upravené vrstvou polyanilinfosfátu Práce se zabývá studiem vlivu povrchové úpravy částic pigmentů vrstvami polyanilinu (PANI) v antikorozních nátěrových hmotách. Pigmenty byly testovány ve formě pokryté vrstvou PANI a ve formě nepokryté. Pro studium antikorozních vlastností byly syntetizovány směsné oxidy se strukturou spinelu a perovskitu, které byly následně pokryty vrstvou polyanilinu. Polyanilinem byly pokryty i pigmenty na bázi oxidu železitého, křemičitanů, grafitu a fosfokřemičitanu. Byly připraveny nátěrové hmoty na bázi vodouředitelné epoxidové pryskyřice obsahující povrchově upravené i neupravené pigmenty. Povlaky byly testovány pomocí laboratorních korozních zkoušek. Antikorozní pigment, Polyanilin, Povrchově upravený pigment, Urychlená korozní zkouška, Antikorozní účinnost.
eng Anticorrosion properties of inorganic pigments surface-modified with a polyaniline phosphate layer The paper deals with research into the effects of treating the surface of the pigment particles with polyaniline layers in anticorrosion paints. The pigments involved were tested in a form coated with a polyaniline layer and in an uncoated form. To study anticorrosion properties, mixed metal oxides with the structure of spinel and perovskite were synthesized to be later coated with polyaniline. Polyaniline was also used to coat the pigments based on iron trioxide, silicates and graphite. Water-borne, epoxy resin-based paints containing the pigments with and without the surface layer of polyaniline were formulated. The coatings were tested by means of laboratory corrosion tests. These involved corrosion tests accelerated with an increased temperature, with high atmospheric humidity, and with the presence of corroding substances such as SO2 and NaCl. Polyaniline; Conducting polymer; Coating; Graphite; Perovskite; Talc; Spinel; Wollastonite; Anticorrosion efficiency

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