| 钒钛酸掺杂聚苯胺的制备与湿敏性能 |
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| 引用本文： | 李莉,张赛,王思,韩冰冰,高泽宇. 钒钛酸掺杂聚苯胺的制备与湿敏性能[J]. 高分子材料科学与工程, 2012, 0(10): 158-161 |
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| 作者姓名： | 李莉 张赛 王思 韩冰冰 高泽宇 |
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| 作者单位： | 东北石油大学化学化工学院;中海田安全技术服务有限公司 |
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| 摘 要： | 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。
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| 关 键 词： | 钒钛酸 聚苯胺 湿敏特性 |
Preparation and Humidity Sensing Properties of Vanadium-Titanium Acid Doped Polyaniline |
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| Li Li,Sai Zhang,Si Wang,Bingbing Han,Zeyu Gao. Preparation and Humidity Sensing Properties of Vanadium-Titanium Acid Doped Polyaniline[J]. Polymer Materials Science & Engineering, 2012, 0(10): 158-161 |
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| Authors: | Li Li Sai Zhang Si Wang Bingbing Han Zeyu Gao |
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| Affiliation: | 1(1.School of Chemistry and Chemical Engineering,Northeast Petroleum University, Daqing 163318,China;2.China National Offshore Oil Corporation(CNOOC) Safety & Technology Services Co.,Ltd,Tianjin 300456,China) |
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| Abstract: | 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%. |
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| Keywords: | vanadium-titanium acid polyaniline humidity sensing property |
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