Encapsulation of Organic Pigments Yellow with Nanosilica Particles

Abstract

Abstract: The organic pigment was successfully coated with colloidal silica particles by using layer-by-layer assembly technique.It was found that the nano-silica content adsorbed onto organic pigments could be modulated by the numbers of both polyelectrolyte layers and silica layers.TEM, TGA analysis and XPS data illustrated that the nano-silica could not cover the organic pigment surface completely,however,the coverage ratio of nano-silica on the organic pigment increased with increasing the layers.The nano-silica particles coated onto the surfaces of organic particles could obviously improve the wettability of the organic pigment,as well as weatherability through scattering of UV ray.

Key words: Organic Pigment, Nano-silica particle, Wettability, Weatherabilty

CLC Number:

O612

TrendMD:

YUAN Jun-Jie, ZHOU Shu-Xue, YOU Bo, WU Li-Min. Encapsulation of Organic Pigments Yellow with Nanosilica Particles[J]. Chem. J. Chinese Universities, 2005, 26(11): 1998.

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Encapsulation of Organic Pigments Yellow with Nanosilica Particles

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