基于两性高分子化合物/还原氧化石墨烯的离子传感器  

Ion Sensors Based on Amphoteric Polymer/Reduced Graphene Oxide

作　　者：林洋 冯俊玮 张焕侠[1] 张剑 LIN Yang;FENG Jun-wei;ZHANG Huan-xia;ZHANG Jian(College of Material and Textile Engineering,Jiaxing University,Jiaxing 314001)

机构地区：[1]嘉兴学院材料与纺织工程学院,浙江嘉兴314001

出　　处：《纺织科学与工程学报》2021年第4期7-10,16,共5页Journal of Textile Science & Engineering

基　　金：国家自然科学基金项目(61704068);嘉兴学院重点大学生研究训练(SRT)计划项目(8517203301)。

摘　　要：将氧化石墨烯(GO)按照特定的质量分数加入去离子水中,将一定比例的两性高分子加入氧化石墨烯溶液中,然后通过涂敷的方式整理到纯棉织物上,还原后得到具有良好柔性的还原氧化石墨烯/两性高分子(amphoteric polymer)棉织物离子传感器(RGO/AP)。两性化合物与石墨烯纳米片充分混合以后,聚均匀的分散到石墨烯片层之间,当不同性质的离子在织物表面传输时,其与两性物质的相互作用强度不同,从而表现出不同的离子传输能力,使石墨烯/两性聚合物改性的织物对不同特性的离子表现出特定的响应能力,并且织物的表面电阻率随离子性质差异而表现出显著的不同。此外,此柔性可穿戴基离子传感器的表面形貌还表现出明显的差异性。RGO/AP为柔性可穿戴离子传感器的应用提供了实验依据,为开发高灵活性的智能离子传感器的设计提供理论基础。A certain amount of graphene oxide(GO)was put into the deionized water,a proportional amphoteric polymer(AP)was mixed into the graphene oxide solution and then coated on the cotton fabric.After reducing,flexible reduced graphene oxide/amphoteric polymer cotton fabric ion sensors(RGO/AP)were obtained.Amphoteric polymer were embedded in RGO nanosheets and distributed evenly on different layers,and the various ions could show different ion transmission capacities due to different interaction strengths with amphoteric polymer when they were transmitted on the surface of the fabrics,which made RGO/AP modified fabrics show different responses to various ions,and the surface resistivities of the fabrics showed great differences with the ion properties differences.In addition,the surface morphologies of the flexible wearable ion sensors also showed distinguished differences.As an application example for flexible wearable ion sensor,RGO/AP provided an experiment and theory basis for designing smart ion sensor with high flexibility.

关 键 词：两性高分子 石墨烯 涂敷 棉织物 离子响应性 

分 类 号：TS106[轻工技术与工程—纺织工程] TP212[轻工技术与工程—纺织科学与工程]