热烧结工艺对打印柔性银导线电-力综合性能的影响

Effect of Hot Sintering Process on Electrical and Mechanical ComprehensiveProperties of Printed Flexible Silver Wire

摘要: 对直写打印柔性电子银导线进行热烧结处理，通过自主搭建的柔性电子力学可靠性测试平台，研究了不同烧结温度（120，140，160，180，200 ℃）和时间（2，4，6，8，10 h）对打印银导线导电性、延展性和耐弯曲疲劳性能的影响。结果表明：随着烧结温度的升高和烧结时间的延长，银导线的导电性先提高后逐渐趋于稳定，延展性亦得到提升，但弯曲疲劳寿命明显下降；烧结温度高于160 ℃、烧结时间大于8 min时，打印银导线导电性能较好。

Abstract: The direct coriting printed flexible electronic silver wire was hot sintered. The effects of sintering temperatures (120,140,160,180, 200 ℃) and times (2,4,6,8,10 h) on conductivity, ductility and resistance to bending fatigue were studied with the self-made flexible electronic mechanics reliability test platform. The results show that with the increase of sintering temperature and time, the conductivity of the silver wire was improved first and gradually stabilized, the ductility was also improved, but the bending fatigue life was significantly reduced. The printed silver wire could obtain good conductivity when the sintering temperature was above 160 ℃ and the sintering time was more than 8 min.