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基于PAM/CS/MoS2复合水凝胶的QCM湿度传感器制备及应用

罗自力 黄蓓 曹峥 范黎琳 成骏峰 吴盾 陶国良 刘春林

罗自力, 黄 蓓, 曹 峥, 范黎琳, 成骏峰, 吴 盾, 陶国良, 刘春林. 基于PAM/CS/MoS2复合水凝胶的QCM湿度传感器制备及应用[J]. 功能高分子学报,2023,36(1):1-8 doi: 10.14133/j.cnki.1008-9357.20220421001
引用本文: 罗自力, 黄 蓓, 曹 峥, 范黎琳, 成骏峰, 吴 盾, 陶国良, 刘春林. 基于PAM/CS/MoS2复合水凝胶的QCM湿度传感器制备及应用[J]. 功能高分子学报,2023,36(1):1-8 doi: 10.14133/j.cnki.1008-9357.20220421001
LUO Zili, HUANG Bei, CAO Zheng, FAN Lilin, CHENG Junfeng, WU Dun, TAO Guoliang, LIU Chunlin. Preparation and Application of QCM Humidity Sensor Based on PAM/CS/MoS2 Composite Hydrogel[J]. Journal of Functional Polymers. doi: 10.14133/j.cnki.1008-9357.20220421001
Citation: LUO Zili, HUANG Bei, CAO Zheng, FAN Lilin, CHENG Junfeng, WU Dun, TAO Guoliang, LIU Chunlin. Preparation and Application of QCM Humidity Sensor Based on PAM/CS/MoS2 Composite Hydrogel[J]. Journal of Functional Polymers. doi: 10.14133/j.cnki.1008-9357.20220421001

基于PAM/CS/MoS2复合水凝胶的QCM湿度传感器制备及应用

doi: 10.14133/j.cnki.1008-9357.20220421001
基金项目: 国家自然科学基金(21704008);江苏省自然科学基金面上项目(BK20201449);江苏省研究生实践创新计划(SJCX22_1326);江苏高校品牌专业、江苏高校优势学科建设建设工程资助项目
详细信息
    作者简介:

    罗自力(1998—),男,四川达州人,硕士生,主要研究方向为功能高分子材料。E-mail:zands_xl@163.com

    通讯作者:

    曹 峥, E-mail:zcao@cczu.edu.cn

  • 中图分类号: O63

Preparation and Application of QCM Humidity Sensor Based on PAM/CS/MoS2 Composite Hydrogel

  • 摘要: 通过自由基聚合的方法,将二硫化钼(MoS2)引入聚丙烯酰胺/壳聚糖(PAM/CS)水凝胶体系,制得互穿网络结构的PAM/CS/MoS2复合高分子水凝胶。利用傅里叶变换红外光谱、拉曼光谱、扫描电子显微镜、激光扫描共聚焦显微镜对水凝胶的组分和形貌进行分析。利用万能试验机和接触角测量仪对水凝胶的力学性能和亲水性能进行测试,最后用石英晶体微天平(QCM)探究了该复合水凝胶薄膜在湿度传感领域的应用。结果表明, PAM/CS/MoS2-0.4(MoS2在体系中的质量为0.4 mg)复合水凝胶具有最大的压缩应力(584.6 kPa)与最大的压缩应变(83.8%);MoS2的引入,增强了复合水凝胶的亲水性;随着环境相对湿度从11%增加到95%,基于PAM/CS/MoS2复合水凝胶的QCM湿度传感器响应频率最大可达2642 Hz,相对湿度变化1%的灵敏度为31.45 Hz,有望应用于湿度传感领域。

     

  • 图  1  样品的(a)FT-IR光谱与(b)拉曼光谱

    Figure  1.  (a) FT-IR and (b) Raman spectra of samples

    图  2  MoS2的(a)TEM图与(b)Zeta电位图

    Figure  2.  (a) TEM image and (b) Zeta potential image of MoS2

    图  3  复合水凝胶的(a)均方根粗糙度;(b)PAM/CS与(c)PAM/CS/MoS2的激光共聚焦显微镜图(单位:μm)

    Figure  3.  (a) Root mean square roughness of composite hydrogels; Confocal microscopy images of (b) PAM/CS and (c) PAM/CS/MoS2 (Unit: μm)

    图  4  (a)PAM/CS水凝胶与(b)PAM/CS/ MoS2-0.4水凝胶的扫描电镜图

    Figure  4.  SEM images of (a) PAM/CS hydrogel and (b) PAM/CS/MoS2-0.4 hydrogel

    图  5  水凝胶的水接触角

    Figure  5.  Water contact angle of hydrogels

    图  6  复合水凝胶压缩应力-应变曲线

    Figure  6.  Compressive stress-strain curves of composite hydrogels

    图  7  PAM/CS/ MoS2-0.4复合水凝胶修饰的QCM湿度传感器(a)在相对湿度11%~95%下的动态响应曲线;(b)不同相对湿度下频率和质量的变化;(c)在相对湿度11%~86%下的响应-恢复时间;(d)不同湿度下传感器的半峰宽信号(ΔΓ)变化

    Figure  7.  (a) Dynamic response curves at 11%~95% relative humidity; (b) Frequency and mass change under different humidity; (c) Response-recovery time at 11%~86% relative humidity; (d) Variation of sensor half-peak width (ΔΓ) under different humidity of PAM/CS/MoS2-0.4 composite hydrogel-based QCM humidity sensor

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出版历程
  • 收稿日期:  2022-04-21
  • 录用日期:  2022-06-15
  • 网络出版日期:  2022-09-23

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