采用沉淀聚合法,在聚乙二醇的乙醇溶液中制备了钒钛酸掺杂的聚苯胺,并对其进行红外表征和灵敏度、湿滞、电阻特性、电容特性和响应-恢复等湿敏特性研究。结果表明,钒钛酸已掺杂到聚苯胺中,且钒钛酸掺杂聚苯胺的湿敏性能明显优于聚苯胺。当频率为1kHz时该湿敏元件的线性度较好。在11%~97%相对湿度（RH）范围内,电阻变化了3个数量级、灵敏度较高、湿滞回差为5%RH,响应时间为5s,恢复时间为19s,是一种良好的湿敏材料。
The polyaniline composite doped with vanadium-titanium acid was prepared by precipitation polymerization method in the ethanol solution of polyethylene glycol.The FT-IR investigations indicate that the vanadium-titanium acid is inserted into the polyaniline.The humidity sensing properties such as sensitivity,hysteresis loops,resistance,capacitance and response-recovery have been studied.The results show that the humidity sensing properties of vanadium-titanium acid doped polyaniline are superior to of polyaniline.When the frequency is 1kHz,it has high sensitivity,better linear,3 orders of magnitude of resistance changed,5% relative humidity(RH) hysteresis,quick response recovery time(5s,19s) with RH in the range of 11%~97%.
参考文献
| [1] | 张东华,王杨勇,井新利,石玉.聚苯胺的酶促合成[J].高分子材料科学与工程,2004(06):11-14. |
| [2] | Shuangxi Xing;Chun Zhao;Li Niu;Yan Wu;Jinming Wang;Zichen Wang .Diode-like behavior based on polyaniline and Pt[J].Solid-State Electronics,2006(9/10):1629-1633. |
| [3] | Lj. Duic;M. Kraljic Rokovic;Z. Mandic .Composite Layers Consisting of Polyaniline and Poly(o-phenylenediamine): Electrochemical Deposition, Electrochromic and Electrocatalytic Properties[J].Polymer science, Series B. Rapid communications reviews,2010(7/8):431-437. |
| [4] | 冯真真,努丽燕娜,杨军.导电含硫材料/聚苯胺复合物作为镁二次电池的正极材料[J].物理化学学报,2007(03):327-331. |
| [5] | 马利,陈超,甘孟瑜,卢苇,陈奉强.磁场（0.8T）环境中聚苯胺宏观掺杂动力学行为探讨[J].功能材料,2008(04):540-543. |
| [6] | CUI Kun,DING Guang-zhu,CHEN Shi-fu,LIU Jie-ping.Synthesis, Characterization and Electrochemical Behavior of p-NiO/n-TiO2/Polyaniline Composites[J].高等学校化学研究（英文版）,2011(05):870-874. |
| [7] | 於黄中,刘少琼,黄河,熊子莹,任斌.樟脑磺酸原位聚合聚苯胺的性性能研究[J].功能材料,2002(06):626-627,630. |
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