Preparation And Application Of Bionic Reversible Adhesive Hydrogel

In the recent years,more and more materials and equipments based on bionic inspiration have been developed with the emergence and rapid development of bionics,and lots of breakthroughs have been made in related fields.Hydrogels shows broad application prospects due to their biological properties,but the low mechanical properties and poor reusability limit their applications.Therefore,the preparation of hydrogels with excellent recyclability,excellent additive properties and great mechanical properties has always been a challenge.Gecko-inspired super-controllable adhesion ability and mussel adhesion protein can promote the adhesion performance of composite materials by combining with the enhancement mechanism of hydrogel.Herein,the hydrogel with excellent mechanical performance,environmental stability,recovery,excellent adhesion ability and self-healing properties has been fabricated by adding polydopamine.Based on the multiple network structure,the hydrogel exhibits excellent electrical conductivity and mechanical properties.In addition,a fluorescent hydrogel material with a triple network structure has been designed and prepared.The fluorescent hydrogel exhibits excellent self-healing,fluorescent stability and responsiveness,which is expected to be applied to remote force measurement and healing process detection.This essay has studied the relationship between the bionic structure and properties of the hydrogel,clarified the internal strengthening mechanism and explored the effects of various raw material components on the corresponding properties of the hydrogel.Furthermore,the research revealed the mechanism of the hydrogel adhesion and fluorescence.Last but not least,these hydrogels were successfully applied to practical fields such as smart wearable devices,adhesive tapes,bio-patches and remote stress monitoring.