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×î½üдÁËһƪÎÄÕ£¬ÀÏʦÈÃÎÒͶµ½ACS NanoÈ¥£¬½á¹¹±»¾ÜÁË£¬ËùÒÔÏëÇëÄÇλ¸ßÊÖ°ïÎÒÍÆ¼öÒ»¸öÆÚ¿¯£¬IF<3.0µÄ£¬ÕªÒªÈçÏ£ºThe nano-Fe3O4/polythiophene composite pigments, possessing a core-shell structure, were prepared in a two-step method. The nano-Fe3O4 was synthesized via co-precipitation of Fe2+ and Fe3+ with NH3•H2O (precipitant) and N2H4•H2O (reductant), then the thiophene was adsorbed and polymerized on the surface of the nano-Fe3O4 in the solvent of chloroform. FTIR, EDS, XRD, TEM, Zeta potential measurement and TG-SDTA were employed to characterize the composition and structure of the products. The results showed that the nano-Fe3O4/polythiophene composite pigments had good dispersion and stable core-shell structure with the average particle size of approximately 20nm. From the salt spray test and paraffin control test, it was found that the coating with nano-Fe3O4/polythiophene pigments had good performances of anticorrosion and paraffin control when the mass fraction of the composite pigments was 0.8¡«1% (w/w) in alkyd varnish.

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