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| Preparation of Graphene Conductive Ink and Conductive Properties of Paper Base Circuit |
| Received:November 19, 2020 |
| DOI：10.11980/j.issn.0254-508X.2021.03.003 |
| Key Words:graphene conductive ink paper base circuit flexible electronic |
| Fund Project:广州市珠江科技新星专项（201806010141）。 |
| Author Name | Affiliation | Postcode | | ZHANG Hongwei | State Key Lab of Pulp and Paper Engineering,South China University of Technology, Guangzhou,Guangdong Province,510640 | 510640 | | XIE Hong | State Key Lab of Pulp and Paper Engineering,South China University of Technology, Guangzhou,Guangdong Province,510640 | 510640 | | FANG Zhiqiang | State Key Lab of Pulp and Paper Engineering,South China University of Technology, Guangzhou,Guangdong Province,510640 | 510640 | | LIU Yingyao | State Key Lab of Pulp and Paper Engineering,South China University of Technology, Guangzhou,Guangdong Province,510640 | 510640 |
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| Abstract:Graphene conductive ink was prepared with graphene as conductive filler and sodium dodecyl sulfonate （SDS） as adjusting agent. Based on studying the performance of the ink， a paper-based flexible circuit was prepared by the scribing method， the behavior of the ink on the paper-based surface and the conductivity of paper-based circuit were studied. The results showed that SDS could effectively adjust the surface tension and viscosity of the graphene conductive ink. When the dosage of SDS was 0.2 mg/mL， graphene conductive ink had a surface tension of 39.89 mN/m， a viscosity of 9.03 mPa·s， and a square resistance of 179.81 Ω/sq. The paper-based circuit prepared from graphene conductive ink had excellent conductivity， flexibility and stable electrical conductivity. When the length of circuit was 5 cm， its conductivity was 2.81×102 S/m. Moreover， the paper-based circuit could still make a diode bright in the conductive path after bending 180° or kneading. |
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