Tough and adhesive conductive hydrogels with fast gelation from a polyphenol–aluminium ion dual self-catalysis system for wearable strain sensors and triboelectric nanogenerators
Maolin Yu, Yuecong Luo, Qiannian Yang, Tengfei Duan, Zengmin Tang, Lijian Xu, Na Li, Jianxiong Xu
Abstract
A tough and adhesive conductive double network hydrogel (PVA/PHEAA–TA–Al 3+ gel) was prepared via rapid in situ room temperature gelation processes (25 °C, 215 s) in a tannic acid–aluminium ion (TA–Al 3+ ) dual self-catalysis system.
Topics & Concepts
Triboelectric effectMaterials scienceAluminiumSelf-healing hydrogelsCatalysisSelf-healingElectrical conductorWearable computerStrain (injury)AdhesiveComposite materialDual (grammatical number)NanotechnologyChemical engineeringPolymer chemistryOrganic chemistryMedicineInternal medicineArtEmbedded systemLayer (electronics)Alternative medicineComputer sciencePathologyChemistryLiteratureEngineeringAdvanced Sensor and Energy Harvesting MaterialsConducting polymers and applicationsSupercapacitor Materials and Fabrication