盐酸掺杂聚苯胺基PVA/Paam多网络水凝胶的制备及性能  

Preparation and properties of polyaniline-based PVA/Paammulti-network hydrogel doped with hydrochloric acid

作　　者：吴远楠 李大为 刘鑫 陈辰 邱海芳 朱贵生 陶玉仑[1] WU Yuannan;LI Dawei;LIU Xin;CHEN Chen;QIU Haifen;ZHU Guisheng;TAO Yulun(School ofMaterials Sience and Technology,College of Material Anhui University of Scienceand Technology,Huainan 232000,China;Shandong Institute of Industry and Research,Qingdao 266000,China;Thorpe Group Co.,Ltd.,Zhenjiang 212000,China)

机构地区：[1]安徽理工大学材料科学与工程学院,安徽淮南232000 [2]山东产研院,山东青岛266000 [3]索普集团有限公司,江苏镇江212000

出　　处：《功能材料》2023年第2期2182-2188,共7页Journal of Functional Materials

基　　金：安徽省高校优秀青年人项目(gxyqZD2019026);广西糖资源加工重点实验室开放基金项目(GXTZY201907)。

摘　　要：采用不同浓度的盐酸掺杂聚苯胺,采用原位聚合的方法让聚苯胺生长在PVA/Paam复合的多网络水凝胶上,探究最佳掺杂浓度下复合多网络水凝胶的电化学性能,压敏性能和光敏性能。通过红外吸收光谱,紫外吸收光谱,扫描电镜和X射线衍射对聚苯胺粉体进行表征;通过充放电测试,循环伏安法测试,计时电流法,电位溶出分析法,不同波长单色光照射对复合多网络水凝胶进行性能测试。在电化学测试中,确定了在盐酸掺杂浓度为0.5 mol/L时,多网络水凝胶超级电容器的电化学性能最好,充放电时间最长,面积比电容为412.5 mF/cm^(2)。在压力敏感性能测试中,得到具有明显峰性的I-T,V-T曲线,且峰型的振幅和周期与运动强度和频率一一对应。在光敏感性测试中,确定了掺杂盐酸0.35 mol/L时多网络水凝胶具有最佳的光敏感性。说明试验制备的水凝胶同时具有很好的电化学性能、压敏性能和光敏性能,在超级电容器,光敏材料和传感器领域的应用上具有广大的前景。In this experiment,polyaniline was doped with different concentrations of hydrochloric acid,and polyaniline was grown on the PVA/Paam composite multi-network hydrogel by in-situ polymerization.Chemical properties,pressure sensitive properties and photosensitive properties of the composite multi-network hydrogel at the optimal doping concentration were investigated.The polyaniline powder was characterized by FT-IR spectrum,UV spectrum,SEM and XRD.The performance of the composite multi-network hydrogel was tested by charge-discharge test,cyclic voltammetry test,chronoamperometry,potentiometric dissolution analysis method,and different wavelengths of monochromatic light irradiation.In the electrochemical test,it was determined that when the doping concentration of hydrochloric acid was 0.5 mol/L,the electrochemical performance of the multi-network hydrogel supercapacitor was the best,the charging and discharging time was the longest,and the area specific capacitance was 412.5 mF/cm ^(2).In the pressure sensitive performance test,I-T and V-T curves with obvious peaks were obtained,and the amplitude and period of the peak shape corresponded to the exercise intensity and frequency one-to-one.In the photosensitivity test,it was determined that the multi-network hydrogel had the best photosensitivity when doped with 0.35 mol/L hydrochloric acid.It shows that the prepared hydrogel has good electrochemical properties,pressure-sensitive properties and photosensitivity properties at the same time,and has broad prospects in the application of supercapacitors,photosensitive materials and sensors.

关 键 词：多网络水凝胶 聚苯胺 超级电容器 传感器 光敏材料 

分 类 号：TQ317.3[化学工程—高聚物工业]