Nanosilver Conductive Ink Inkjet Printing RFID Tag Antenna

The Internet of Things technology used in agricultural products, such as food safety traceability management is taking the technological advantages of the Internet of Things RFID (Radio Frequency IDentification) is non-contact automatic fast read and write data encryption, in order to achieve a unified management and efficient flow of work in coordination.This thesis reports a production method of conductive nanosilver jet ink. The ink can be used to directly print RFID antenna coil. In the method using silver nitrate as silver source, hydrazine hydrate as a reducing agent, polyvinyl pyrrolidone as a protective agent. Obtain the dispersion of silver nanoparticles through chemical reduction reaction. The dispersion was purified and used inkjet printer into a graphic on glossy photo paper, after 180 °C sintered for 15 minutes with good conductivity, RFID antennas to meet requirements.