3D printing of graphene oxide/carbon nanotubes hydrogel circuits for multifunctional fire alarm and protection

• DOI: 10.1016/j.polymertesting.2022.107905
• Publication Date: 2023-01-12T07:14:57Z
• Authors: Xiaohu Chen; Yanen Wang; Shan Zhang; Jiashu Cui; Xinyu Ma; Lidong Tian; Mingyang Li; Chengwei Bao; Qinghua Wei; Bing Du
• Keywords: Flexible Electronics

Hydrogel circuit materials have a wide range of applications, especially in the field flexible electronics. However, developing smart hydrogel with remarkable properties remains difficult problem. Based on design structure and direct inkjet 3D printing technology, we designed printable conductive sodium alginate/graphene/carbon nanotube (SGC) ink achieved three-dimensional graphene-based circuits high resolution multifunction. Compared previous work, addition GO, SWCNT Ca2+ make SGC excellent conductivity flame retardancy. The reaches 24.11S/m, which is 3 times higher than SA hydrogel. And LOI above 99.7%, far most polymer. We conducted preliminary explorations provided theoretical basis for multifunctional hydrogels complex structures, are expected to be applied circuits, fire protection artificial electronic skin.