化工进展2024，Vol.43Issue(2)：1022-1032,11.DOI:10.16085/j.issn.1000-6613.2023-0323
氧化石墨烯/聚丙烯酸基导电黏附凝胶的制备与性能
Preparation and properties of graphene oxide/polyacrylic acid conductive and adhesive hydrogels
摘要
Abstract
Current conductive hydrogel materials have many shortcomings in practical application,and thus it is of great significance to design and prepare a hydrogel with high strength,high adhesion and high conductivity.Graphene oxide(GO)was used as synergistic component and introduced into the hydrogel matrix fabricated by N-hydroxysuccinimide(NHS)grafted polyacrylic acid(PAA).Subsequently,PAA-NHS/GO composite hydrogels were prepared by a photoinitiated one-step polymerization method.The introduction of GO improved the crosslinking degree of the hydrogel system,increased the stability of the hydrogel and endowed it with high conductivity.The tensile strength,elongation at break and conductivity of PAA-NHS/GO could reach 0.336MPa,302.6%and 0.93S/m,respectively.The functional groups of the composite hydrogel could generate strong adhesion effect with the tissue surface,and the adhesion strength could reach to more than 40kPa.Additionally,PAA-NHS/GO possessed high biosafety and excellent biocompatibility.The composite hydrogel exhibited the ability of stable deformation sensing under external force.When used for electrocardiosignal(ECG)signal monitoring,the composite hydrogel showed high sensitivity and could achieve stable and clear signal transmission.As a novel conductive and adhesive hydrogel,PAA-NHS/GO was expected to be used in the fields of flexible wearable devices,biosensor and electronic skin.关键词
氧化石墨烯/聚丙烯酸/凝胶/导电/黏附Key words
graphene oxide/polyacrylic acid/hydrogel/conductive/adhesive分类
通用工业技术引用本文复制引用
王岩森,侯丹丹,李长金,祁丽亚,王春堯,郭敏,王颖..氧化石墨烯/聚丙烯酸基导电黏附凝胶的制备与性能[J].化工进展,2024,43(2):1022-1032,11.基金项目
国家自然科学基金(52273119,81571410). （52273119,81571410）
