A green method of reducing silver nanoparticles based on bagasse pulp extract for preparing ultraviolet (UV)-curable conductive ink

作者：Chen, Qifeng^*; Du, Xinya; Chen, Guangxue

来源：JOURNAL OF VINYL & ADDITIVE TECHNOLOGY, 2020, 26(1): 90-96.

DOI：10.1002/vnl.21718

• GOLD

The silver nanoparticles are gaining extensive attention due to their tremendous applications in conductive field. In this article, we reported a green method of preparing silver nanoparticles (AgNPs) with bagasse pulp extract acting as reducing agents. In this article, ultrasonic extraction method was adopted. This extraction method has the advantages of simple operation and less impurity content in the extract. Silver nitrate (AgNO3) solution, bagasse extract, and polyvinyl pyrrolidone (PVP) were used as the silver precursor, reducing agent, and protection agent, respectively. Next, hyperbranched polyurethane acrylate (HPUA) as waterborne resin was mixed with AgNPs to prepare UV-curable conductive ink. The UV-curable conductive ink synthesized by the AgNPs showed high conductivity, and the obtained conductive ink had very low resistance (1.06 omega) and resistivity (2.6 x 10(-5) omega center dot m), good electronic stability, showing the great advantage in the field of UV-curable conductive ink. In addition, we tested the AgNPs conductive ink of tearing resistance, rubbing fastness, and bending strength. The results showed the nanosilver conductive ink had good mechanical properties. J. VINYL ADDIT. TECHNOL., 26:90-96, 2020.