Abstract:In this paper, large-scale silver nanowires with a lenghth of 30-90 μm were successfully synthesized by a polyol process. Electronically conductive adhesives (ECAs) were made by adding micro-sized silver flakes and silver nanowires to the polymer composites consisted mainly of epoxy resin, cure agent and catalyst. The volume resistivity of the ECAs was researched as a function of silver filling loading and sintering temperature. The results indicated that the volume resistivity of ECAs first decreased and then increased with the increase of fractions of silver nanowires when curing temperature at 180 0C. With the increase of curing temperature, the volume resistivity of ECAs increased. In the condition of the ECAs filled 65% silver fillers (the ratio of silver micro-sized silver flakes and silver nanowires is 55:10), the volume resistivity of ECAs reached 6.5?0-4 Ω?cm and 1.3?0-4 Ω?cm cured at 180 0C and 300 0C, respectively. The dramatic improvement in the conductivity of the ECAs is due to the low-temperature sintering of the silver nanowires at 300 0C. Effect of silver nanowires on the resistivity of ECAs was discussed in terms of the distribution and sintering behavior of silver nanowires and interaction relationship between silver nanowires and micro-sized silver flakes.