改性三聚氰胺海绵的制备及吸油性能研究

Preparation and oil absorption properties of modified melamine sponge

利用正辛基三氯硅烷对三聚氰胺海绵疏水改性得到吸油材料。考察不同溶剂、硅烷溶液浓度和浸渍时间对于样品性能的影响。采用傅里叶变换红外光谱、扫描电子显微镜和接触角测试对改性前后样品微观形态、结构组成及水湿润性进行表征。重点研究材料的吸油性能,结果表明,对原油、润滑油、大豆油和柴油的吸附倍率可达74~95 g/g,可用准一级吸附模型描述材料对于4种油品的吸附动力学过程;样品在重复使用、油水分离和动态吸油测试中表现优异。改性三聚氰胺海绵制备简单、操作方便,是一种有潜力的吸油材料。

The oil absorption material melamine sponge modified via n-octyltrichlorosilane. The effects of different solvents,silane solution concentration and immersion time on the performance of the samples were investigated. The morphology,structure and water wettability of the raw and modified melamine resin foam samples were characterized by Fourier transform infrared spectroscopy,scanning electron microscopy and contact angle test. The most important was research oil absorption of the material and the samples adsorption capacity of crude oil,lubricating oil,soybean oil and diesel oil could reached 74 ~ 95 g/g,the adsorption kinetic process of four kinds of oil can be described by quasi-first-order adsorption model. It shown excellent performance in recycle using,oil/water separated and dynamic oil absorption process.Modified melamine sponge was a potential oil absorption material with easy operating and fabrication.