SiO2 encapsulated aluminum pigment(Al@SiO2)is the most widely used waterborne metal pigment. However, Al@SiO2 is still silvery and the anti-corrosion property in strong alkalinity and acidity media are limited. According to the characteristics of SnO2, if SnO2 is encapsulated on aluminum pigment, the waterborne aluminum pigment with superior corrosion resistance and photocatalytic activity would be obtained. Here, SnCl4/isopropyl as precursor in isopropyl/H2O at weak acidity media, the preparation principle of SnO2 encapsulated aluminum pigment(Al@SnO2)that used aluminum as core, SnO2 as shell and Al(OH)3 or Sn(OH)2 as bridge were studied. The effect of preparation conditions on the anti-corrosion resistance, hue and photocatalytic activity of Al@SnO2 were studied using optical microscopy, X-ray diffraction, anti-corrosion resistance and photocatalytic degradation efficiency test.
TAO Chang
,
MA Zhiling
,
LIU Yuanbo
,
ZHANG Chunyan
,
XIE Fei
. Preparation and application of multifunctional waterborne aluminum pigment[J]. Journal of Hebei University(Natural Science Edition), 2019
, 39(2)
: 159
-165
.
DOI: 10.3969/j.issn.1000-1565.2019.02.008
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