Li, Jinhui Liu, Qiang Ho, Derek Zhao, Songfang Wu, Shuwen Ling, Lei Han, Fei Wu, Xinxiu Zhang, Guoping Sun, Rong Wong, Ching-Ping Three-Dimensional Graphene Structure for Healable Flexible Electronics Based on Diels–Alder Chemistry Wearable electronics with excellent stretchability and sensitivity have emerged as a very promising field with wide applications such as e-skin and human motion detection. Although three-dimensional (3D) graphene structures (GS) have been reported for high-performance strain sensors, challenges still remain such as the high cost of GS preparation, low stretchability, and the lack of ability to heal itself. In this paper, we reported a novel self-healing flexible electronics with 3D GS based on Diels–Alder (DA) chemistry. Furfurylamine (FA) was employed as a reducing as well as a modifying agent, forming GS by FA (FAGS)/DA bonds contained polyurethane with the “infiltrate-gel-dry” process. The as-prepared composite exhibited excellent stretchability (200%) and intrinsic conductivity with low incorporation of graphene (about 2 wt %), which could be directly employed for flexible electronics to detect human motions. Besides, the FAGS/DAPU composite exhibited lower temperature retro-DA response for the continuous graphene networks. Highly effective healing of the composites by heat and microwave has been demonstrated successfully. Three-Dimensional Graphene Structure;motion detection;electronic;strain sensors;Diel;graphene networks;GS preparation;3 D GS;novel self-healing;FA;FAGS;graphene structures;stretchability;temperature retro-DA response 2018-02-13
    https://acs.figshare.com/articles/journal_contribution/Three-Dimensional_Graphene_Structure_for_Healable_Flexible_Electronics_Based_on_Diels_Alder_Chemistry/5962120
10.1021/acsami.7b19649.s001