Preparation of Sliver Nanoparticles by Liquid Chemical Reduction Method
Abstract:The development of printing electronics technology promotes the application of conductive ink, and nano-silver conductive ink is a hot research. Sliver particles are the main conductive component in conductive ink, so nano-silver particles are very important for the ink conductivity. In this paper, silver nanoparticles were reduced from silver nitrate solution by liquid chemical reduction method, with Sodium hypophosphite as reductant, PVP as surface-protection reagent, and sodium hexametaphosphate as dispersant. Orthogonal test with 4 factors and 3 levels is designed in which the effect of reducing agent dosage, protective agent dosage, dispersant content and reaction temperature on the nano-particle size and morphology of silver is investigated. The size distribution of nano-silver powder is measured by nano-size potential analyzer, and the morphology of silver particles is characterized with the SEM. The experiment results showed that the minimum average size of sliver particles can reach 23.87nm, and the dispersed spherical nano-particles with the average size is about 60nm can be obtained.
Document Type: Research Article
Publication date: 2011-01-01
For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.
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