基于环氧树脂的水凝胶涂层及其制备的压电传感器性能研究  

Performance Study of ER-based Hydrogel Coatings and their Prepared Piezoelectric Sensors

作　　者：王耀 卿宁[1] 汤柳燕 Wang Yao;Qing Ning;Tang Liuyan(Wuyi University,Jiangmen 529020,China)

机构地区：[1]五邑大学,广东江门529020

出　　处：《广东化工》2025年第4期7-9,56,共4页Guangdong Chemical Industry

摘　　要：在当代先进的压阻传感器的开发过程中,为提高灵敏度,传统上依赖于砂纸等表面不光滑材质作为关键材料,这一做法存在显著的局限性。为了克服这一缺陷,本研究采用了一种新的方法,即利用环氧树脂(ER),将甘氨酸亚铁(Fe[Gly]_(2))稳定地固定于基底材料上。随后,通过APS/Fe^(2+)引发剂体系在材料表面进行原位凝胶聚合反应,形成水凝胶涂层。研究成果显示,这一策略展现了较高的通用性,并且适用于多种的单体聚合。通过精细调控实验条件,如单体浓度、温度等参数,可以实现对水凝胶涂层厚度的精确控制;同时,通过调整Fe[Gly]_(2)的浓度以及反应时间,可以有效操控涂层表面的粗糙度,进而精准调节所得压阻传感器的性能特性。在此基础上,采用水凝胶涂层方法制备的压阻传感器在输出信号方面表现出了卓越的稳定性,这为传感器的实际应用提供了可靠的物理性能保证。此外,该方法的发展开辟了新的途径,为传感技术的进步贡献了一项创新的材料制备技术。In the development of contemporary advanced piezoresistive sensors,in order to improve sensitivity,it has traditionally relied on non-smooth surface materials such as sandpaper as the key material,a practice that has significant limitations.In order to overcome this shortcoming,this study employs a novel approach that utilizes an epoxy resin(ER)to stably immobilize ferrous glycinate(Fe[Gly]_(2))onto the substrate material.Subsequently,an in situ gel polymerization reaction was carried out on the surface of the material by an APS/Fe^(2+)initiator system to form a hydrogel coating.The research results show that this strategy exhibits high versatility and is applicable to a wide range of monomer polymerizations.The thickness of the hydrogel coating can be precisely controlled by finely tuning the experimental conditions,such as monomer concentration and temperature,and the roughness of the coating surface can be effectively manipulated by adjusting the concentration of Fe[Gly]_(2) and the reaction time to precisely adjust the performance characteristics of the resulting piezoresistive sensors.On this basis,the piezoresistive sensors prepared by the hydrogel coating method exhibit excellent stability in terms of output signals,which provides a reliable physical performance guarantee for the practical application of the sensors.In addition,the development of this method opens up new avenues and contributes an innovative material preparation technique to the advancement of sensing technology.

关 键 词：环氧 水凝胶涂层 APS Fe[Gly]_(2) 压阻传感 

分 类 号：TQ[化学工程]