Rheo-SAXS of graphene inks

Graphene has the potential to revolutionize the field of printed electronics thanks to its high conductivity, flexibility, chemical stability and natural abundance. We have previously developed conductive screen printing inks through the gelation of graphene-polymer dispersions. The gelation mechanism of these inks and the role of polymeric stabilizers therein is still poorly understood. The structure of such inks under shear will be studied with rheo-SAXS.

石墨烯凭借其高导电性、柔韧性、化学稳定性及天然丰度，具备推动印刷电子领域实现革命性变革的巨大潜力。此前我们通过石墨烯-聚合物分散体的凝胶化工艺，开发出了导电丝网印刷油墨。然而，这类油墨的凝胶化机制以及其中聚合物稳定剂所起到的作用，目前仍尚未被充分阐明。本研究将借助流变小角X射线散射（rheo-SAXS）技术，对该类油墨在剪切作用下的微观结构展开研究。