聚苯胺/MXene@聚丙烯复合非织造柔性pH值传感器的制备及其传感性能
Preparation and sensing performance of a PANI/MXene@PP complex nonwoven flexible pH sensor
朱祥祥 1孙辉 1于斌1
作者信息
- 1. 浙江理工大学纺织科学与工程学院(国际丝绸学院),杭州 310018;浙江省现代纺织技术创新中心,浙江绍兴 312000
- 折叠
摘要
为制备基于聚丙烯纺黏非织造材料(Polypropylene spunbonded nonwoven fabric,PP SF)的双电极柔性pH值传感器,在PP SF表面涂覆油性聚氨酯(Oil-based polyurethane,OPU),制备得到OPU/PP SF,采用丝网印刷技术将作为参比电极的银/氯化银(Ag/AgCl)浆料和导电碳浆料分别移印至OPU/PP SF表面;利用化学氧化聚合法制备了酸掺杂聚苯胺(Polyaniline,PANI),将其与经超疏水改性的F-Ti3C2Tx MXene结合,再涂覆在C层表面,形成 PANI/F-Ti3C2Tx MXene@PP SF 柔性 pH 值传感器.结果表明:PANI/F-Ti3C2Tx MXene@PP SF 柔性 pH 值传感器表面呈现珊瑚状结构,在pH值为2～10时,PANI/F-Ti3C2Tx MXene@PP SF柔性pH值传感器表现出良好的力学性能,其拉伸强度和断裂伸长率均比PPSF有所提高,灵敏度(-37.07 mV/pH)高,线性度(R2=0.98)好,具有低电位变化率(0.092 mV/h)和良好的重现性(灵敏度标准偏差为0.36％).该研究可为基于聚丙烯纺黏非织造材料基材的柔性pH值传感器的研究提供参考.
Abstract
To prepare a dual-electrode flexible pH sensor based on polypropylene spunbonded nonwoven fabric(PP SF),an oil-based polyurethane(OPU)coating was initially applied to the surface of PP SF,and the OPU/PP SF was fabricated.Subsequently,screen printing technology was employed to transfer the reference electrode of silver/silver chloride paste(Ag/AgCl),and conductive carbon paste(C),respectively onto the OPU/PP SF surface.Next,acid-doped polyaniline(PANI)prepared via chemical oxidative polymerization and the superhydrophobically modified F-Ti3C2Tx MXene were coated on the carbon layer to form the PANI/F-Ti3C2Tx MXene@PP SF flexible pH sensor.The results indicate that the surface of the obtained PANI/F-Ti3C2Tx MXene@PP SF flexible pH sensor exhibits a coral-like structure.Within the pH range of 2 to 10,the PANI/F-Ti3C2Tx MXene@PP SF flexible pH sensor demonstrates excellent mechanical properties(with higher tensile strength and elongation at break than those of PP SF),high sensitivity(-37.07 mV/pH),and good linearity(R2=0.98).Furthermore,this flexible pH sensor has low potential change rate(0.092 mV/h)and excellent reproducibility(with a sensitivity standard deviation of 0.36％).This study might serve as reference for the research of flexible pH sensors based on PP SF substrate.
关键词
聚丙烯纺黏非织造材料/柔性pH值传感器/聚苯胺/MXene/银/氯化银/丝网印刷Key words
polypropylene spunbonded nonwoven fabric(PP SF)/flexible pH sensor/polyaniline/MXene/silver/silver chloride/screen printing引用本文复制引用
基金项目
浙江省自然科学基金项目(LTGS23E030005)
浙江省高层次特殊人才支持计划科技创新领军人才项目(2021R52031)
出版年
2024
NETL
NSTL
万方数据