水处理滤料表面润湿性及表面自由能与其亲油亲水性关系的研究  

Water Treatment Filter Material Surface Wettability and Surface Free Energy and Its Research of Oil-Wet Hydrophilic Relationship

作　　者：胡丹 未碧贵[2] 郭小龙[2] 

机构地区：[1]甘肃省兰州市榆中县一中高三补习一班,甘肃兰州730100 [2]兰州交通大学环境与市政工程学院,甘肃兰州730070

出　　处：《广东化工》2017年第3期68-70,共3页Guangdong Chemical Industry

基　　金：甘肃省自然科学基金项目(1014RJZA041)

摘　　要：本实验首先利用钛酸酯DN-101和铝酸酯DL-411对石英砂滤料进行改性,然后选择未改性石英砂、DN-101改性石英砂和DL-411改性石英砂滤料作为研究对象来研究其润湿性和表面自由能同亲油亲水性之间的关系;同时以正己烷和去离子水作为探针液。用毛细重力法对水相去离子水及油相环己烷进行润湿,来探究各种滤料的亲油亲水性。结果表明未改性石英砂亲油亲水比(LHR)仅为0.823,亲油性较差,DN-101改性石英砂亲油亲水比(LHR)高达46.58,具有较强的亲油性,而DL-411改性石英砂亲油亲水比(LHR)为4.95,表现出一定的亲油性。并且通过XPS图谱分析了各滤料表面化学成分,结果表明DN-101改性石英砂表面自由能较弱,对油相有较好的润湿,表现出较好的亲油性,而未改性石英砂表面自由能较强,亲油性较差。DL-411改性石英砂趋于两者之间。the first experiment using titanate and aluminate ester DN - 101 DL - 411 to modification of quartz sand filter material, and then select the unmodified modified quartz sand and quartz sand, DN - 101 DL - 411 modified quartz sand filter material as the research object to study its wettability and surface free energy and the relationship between the oil-wet hydrophilic; At the same time, with n-hexane and deionized water as a probe. With capillary method of gravity and water outburst ionized water and oil phase cyclohexane wetting, to explore various kinds of filter material oil-wet hydrophilic. Results showed that the unmodified quartz sand oil water ratio （LHR） is 0.823, poor lipophilicity, DN - 101 modified quartz sand oil-wet hydrophilic （LHR） up to 46.58, with strong lipophilicity, and DL - 411 modified quartz sand oil water ratio （LHR） is 4.95, show some lipophilicity. And analyzed by XPS spectrtnn filter material surface chemical composition, the results show that the DN - 101 modified quartz sand surface free energy is weak, has a better wetting to the oil phase, showed good lipophilicity, modified quartz sand surface free energy is stronger, not poor lipophilicity. DL - 411 modified quartz sand between the two.

关 键 词：石英砂 水处理滤料 润湿性 亲油亲水比 表面自由能 

分 类 号：TQ[化学工程]