摘要
Natural adhesives have been widely replaced by industrial adhesives made from petroleum-based products.Compared with that of traditional natural adhesives,modern industrial adhesives show improved adhesion performance.However,the drawbacks of modern adhesives,including toxicity and nonbiodegradability,drive the need for new and high-performance adhesive materials from renewable and biocompatible natural feedstock.In this study,a new family of acid-sugar adhesive materials exhibiting excellent and long-term adhesion effects was developed inspired by the concept of deep eutectic solvents(DESs).The supramolecular polymerization between natural sugars and acids gave rise to both strong cohesion and adhesion properties.Moreover,high resistance to organic solvents is an advantage of acid-sugar supramolecular adhesive materials.This study not only dramatically expands the applications of DESs but also sheds light on the development of supramolecular adhesive materials as promising alternatives to polymeric adhesives.
基金
The authors gratefully acknowledge the National Natural Science Foundation of China(nos.21704024 and 21878326)
the Huxiang Young Talent Program from Hunan Province(no.2018RS3036)
the Fundamental Research Funds for the Central Universities from Hunan University,and the Training Program for Excellent Young Innovators of Changsha(no.kq1905049)for financial support.
