Research on the Conductivity of UV-Curable Conductive Ink

In order to fulfill the demand of fine circuit board, a UV-curable conductive ink was prepared, and the factors affect conductivity of ink was studied. Different UV conductive paste was prepared with different kinds of conductive material to research the influence of conductive material on the conductivity of paste. Change the variety of photoinitiator to prepare UV-curable conductive ink, and the effect of photoinitiator on the conductivity of ink was also studied. The results indicated that the variety of conductive material has a great influence on the conductivity of UV-curable ink. The ink, which prepared with flaky and spherical silver powder, has the best conductive property. Whats more, the conductivity of UV-curable ink is different with the change of photoinitiator, which would lead different cross-linking reaction after curing.