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

Xiaohu Chen; Yanen Wang; Shan Zhang; Jiashu Cui; Xinyu Ma; Lidong Tian; Mingyang Li; Chengwei Bao; Qinghua Wei; Bing Du

Polymer Testing (Feb 2023)

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

Xiaohu Chen,
Yanen Wang,
Shan Zhang,
Jiashu Cui,
Xinyu Ma,
Lidong Tian,
Mingyang Li,
Chengwei Bao,
Qinghua Wei,
Bing Du

Affiliations

Xiaohu Chen: Department of Industry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, PR China
Yanen Wang: Department of Industry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, PR China; Corresponding author.
Shan Zhang: Department of Industry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, PR China; Corresponding author.
Jiashu Cui: Department of Industry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, PR China
Xinyu Ma: Department of Industry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, PR China
Lidong Tian: College of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an, Shaanxi, 710054, PR China
Mingyang Li: Department of Industry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, PR China
Chengwei Bao: Department of Industry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, PR China
Qinghua Wei: Department of Industry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, PR China
Bing Du: Center of Stomatology, The Second People's Hospital of Foshan, Foshan, Guangdong, People's 528000, PR China

Journal volume & issue: Vol. 119
p. 107905

Abstract

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

Published in Polymer Testing

ISSN: 0142-9418 (Print); 1873-2348 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Chemical technology: Polymers and polymer manufacture
Website: https://www.journals.elsevier.com/polymer-testing

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