Preparation, Structure and Properties of High Performance Silver-Filled UV-Curable Polyurethane Acrylate Conductive Inks

Abstract:

In this paper, polyethylene glycol thioglycolate was prepared by esterfication. Spherical silver nanoparticles were formed from silver nitrate solution by liquid chemical reduction method with hydrazine hydrate as reducant. Based on the previous two steps, the nanoAg was absorbed by the polyethylene glycol thioglycolate trough the deposition. Metal nanoparticles were absorbed by polyethylene glycol thioglycolate with M-S bond to form polymer modified nanoparticle powder. The conductive inks were prepared using modified nanoparticles, other filler and laborator self-made water-borne polyurethane resin as the bonding material. Then the ink was coated on the PET film surface to mold. Catalyst, temperature and time effected esterfication. The esterfication rate was about 55% at 110°C for 3 hours. XRD indicated that the nanoAg prepared were cubic crystals, TEM showed that the size of modified nanoAg was less than 10nm. Metal nanoparticles with M-S bond effectively reduced the surface energy and had better compatibility with organic materials. Cross-cutting tests showed that adhesion between the ink and PET films was well and the conductive inks also showed good wet resistance and thermostability.

• Periodical: Applied Mechanics and Materials (Volume 469)
• Pages: 59-63
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.469.59
• Online since: November 2013
• Authors: Guang Xue Chen*, Yan Yan Cui, Yu Yang, Qing Wang
• Keywords: Conductive Ink, Silver, UV-Curable Polyurethane

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