外加磁场与表面活性剂对水表面张力影响程度对比

发布时间：2018-05-27 00:00

本文选题：外加磁场 + 表面张力　；参考：《煤炭科学技术》2015年04期

【摘要】：为了增强井下防尘管路中水的润湿性,利用磁化仪和高斯计对不同水样进行了磁处理,研究分析了不同场强及磁化时间下外加磁场对水样表面张力的影响程度及特征,并与表面活性剂的试验情况进行了比较。结果表明:一定磁场参数下,外加磁场能够降低水的表面张力,但对其影响程度相对较小。具有较高初始表面张力的水样被磁处理后,平均表面张力一般为50~60 m N/m,降低了7.2%~27.1%,且随磁场参数的改变有一定的波动;而使用表面活性剂在较低浓度下就可使水的表面张力降低至50 m N/m以下,最佳表面活性剂可使其进一步降低至30~40 m N/m,降低幅度可为外加磁场的1.5~4.0倍以上。外加磁场可以作为一种改变水润湿性的绿色方法,但应根据现场具体条件及需求,并结合磁化水其他特性的研究进行选择应用。
[Abstract]:In order to enhance the wettability of water in the dust-proof pipe, different water samples were treated with magnetizer and Gao Si meter. The influence degree and characteristics of applied magnetic field on surface tension of water samples under different field intensity and magnetization time were studied and analyzed. The experimental results were compared with those of surfactants. The results show that the external magnetic field can reduce the surface tension of water under certain magnetic field parameters, but the influence degree is relatively small. The average surface tension of the water sample with high initial surface tension is generally 50 ~ 60 m / m, which decreases the value of 7.2m ~ 27.1and fluctuates with the change of magnetic field parameters. The surface tension of water can be reduced to less than 50 mn / m when the surfactant is used at a lower concentration, and the optimum surfactant can further reduce the surface tension to 30 ~ 40 mn / m, and the decreasing range can be more than 1.5 ~ 4.0 times of the applied magnetic field. The applied magnetic field can be used as a green method to change the wettability of water, but it should be selected and applied according to the specific conditions and requirements in the field and combined with the study of other characteristics of magnetized water.
【作者单位】：中国矿业大学(北京)资源与安全工程学院;中国矿业大学(北京)煤炭资源与安全开采国家重点实验室;
【基金】：中央高校基本科研业务费专项基金资助项目(2009KZ03)
【分类号】：TD714.4

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