三聚氰胺基疏水海绵的制备及其吸油性能  

Preparation of Melamine Based Hydrophobic Sponge and Its Oil Absorption Performance

作　　者：张静静 李艳香[2,3] 李望良 王文辰[4] 闻明科 ZHANG Jingjing;LI Yanxiang;LI Wangliang;WANG Wenchen;WEN Mingke(College of Chemical Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China;Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;CNOOC ZhongJie Petrochemical Co.,Ltd.,Cangzhou 061101,China)

机构地区：[1]沈阳化工大学化学工程学院,辽宁沈阳110142 [2]中国科学院过程工程研究所,北京100190 [3]中国科学院大学,北京100049 [4]中海石油中捷石化有限公司,河北沧州061101

出　　处：《石油学报（石油加工）》2024年第2期534-545,共12页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金项目(21978307,22078347);河北省重点研发计划项目(21373303D);河南省特聘研究员(220508001)资助。

摘　　要：采用单宁酸(TA)/Fe^(3+)复合物(TA/Fe^(3+))对三聚氰胺海绵(MS)进行预处理,然后通过生物蜡乳液浸渍法对三聚氰胺海绵进行疏水改性,制备了高吸油倍率的疏水三聚氰胺海绵(MS-TA/Fe^(3+)-Wax)。采用扫描电子显微镜、傅里叶变换红外光谱和接触角测试等手段对三聚氰胺海绵改性前后样品进行微观形貌、结构组成和表面润湿性表征,并考察其对不同油品的吸油性能。结果表明:MS-TA/Fe^(3+)-Wax具有高度疏水性,水接触角可达141.5°;在常温常压条件下,MS-TA/Fe^(3+)-Wax对正辛烷、二氯甲烷、甲苯、柴油、泵油和菜籽油的吸油量为54.91~97.46 g/g,吸油过程符合拟二级动力学。疏水改性的三聚氰胺海绵材料通过挤压解吸附可实现循环使用,在处理油-水污染物方面具有潜在的应用前景。After being pretreated with tannic acid(TA)/Fe^(3+)compound(TA/Fe^(3+)),the melamine sponge(MS)was modified by the biowax emulsions to prepare the hydrophobic MS(MS-TA/Fe^(3+)-Wax)with high oil absorption capacity.The microscopic morphology,structural composition and surface wettability of the original and modified MS samples were characterized by scanning electron microscopy,Fourier transform infrared spectroscopy and contact angle measurement,and the oil absorption properties of the sponges were investigated.The results shows that the MS-TA/Fe^(3+)-Wax exhibit high hydrophobicity with the water contact angle of 141.5°.At room temperature and normal pressure,the absorption capacity of MS-TA/Fe^(3+)-Wax for various oils and organics including n-octane,dichloromethane,toluene,diesel,pump oil and rapeseed oil can reach 54.91—97.46 g/g.The oil absorption process of the modified sponge is in accordance with the proposed secondary kinetics.The hydrophobically modified MS materials can realize recycling through squeezing desorption,and have a promising application prospect in the treatment of oil-water contaminants.

关 键 词：三聚氰胺海绵 疏水改性 生物蜡 油-水混合物 吸附 吸油性能 水接触角 

分 类 号：TB34[一般工业技术—材料科学与工程]