| 液隔电极式压电传感器测定聚苯乙烯膜的吸附特性 |
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| 引用本文： | 亓永.液隔电极式压电传感器测定聚苯乙烯膜的吸附特性[J].皖西学院学报,2008,24(5). |
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| 作者姓名： | 亓永 |
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| 作者单位： | 莱芜职业技术学院信息工程系,山东莱芜,271100 |
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| 摘 要： | 液隔电极式压电传感器（ESPS）对表面质量负载变化有灵敏的频率响应。在ESPS表面浇铸聚苯乙烯（PS）薄膜,实时监测十二烷基苯磺酸钠在PS膜表面吸附过程中的质量变化,结果表明其吸附过程呈现可逆吸附特征,并可以用Langmuir等温线和动力学模型进行回归分析,获得吸附/脱附速率常数、平衡常数、饱和吸附量等参数,并讨论盐浓度的影响。
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| 关 键 词： | 液隔电极式压电传感器 聚苯乙烯膜 吸附 十二烷基苯磺酸钠 |
Monitor Adsorption of Surfactant on Polystyrene Pilm by Electrode-separated Piezoelectric Sensor |
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| QI Yong.Monitor Adsorption of Surfactant on Polystyrene Pilm by Electrode-separated Piezoelectric Sensor[J].Journal of Wanxi University,2008,24(5). |
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| Authors: | QI Yong |
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| Abstract: | A electrode-separated piezoelectric sensor(ESPS) was fabricated by using quartz crystal as the piezoelectric material.The ESPS has a sensitive frequency response to the change in surface mass loading.A polystyrene film was cast on the surface of the ESPS.The adsorbed mass of sodium dodecyl benzene sulfonate on polystyrene surface was monitored real time by the ESPS sensor.It is shown that the adsorption is reversible and the isotherm is in Langmuir type.The rate constants for adsorption and desorption,equilibrium constant of adsorption and saturation adsorbed mass were obtained.The influence of salt concentration was tested. |
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| Keywords: | lectrode-separated piezoelectric sensor polystyrene film adsorption sodium dodecyl benzene sulfonate |
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