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改性聚氨酯海绵的合成及其油水分离性能

徐从斌 马乐宽 赵越 杨文杰

徐从斌, 马乐宽, 赵越, 杨文杰. 改性聚氨酯海绵的合成及其油水分离性能[J]. 环境科学研究, 2016, 29(7): 1083-1088.
引用本文: 徐从斌, 马乐宽, 赵越, 杨文杰. 改性聚氨酯海绵的合成及其油水分离性能[J]. 环境科学研究, 2016, 29(7): 1083-1088.
XU Congbin, MA Lekuan, ZHAO Yue, YANG Wenjie. Performance of a Modified Polyurethane Foam on Oil-Water Separation[J]. Research of Environmental Sciences, 2016, 29(7): 1083-1088.
Citation: XU Congbin, MA Lekuan, ZHAO Yue, YANG Wenjie. Performance of a Modified Polyurethane Foam on Oil-Water Separation[J]. Research of Environmental Sciences, 2016, 29(7): 1083-1088.

改性聚氨酯海绵的合成及其油水分离性能

基金项目: 国家水体污染治理与控制科技重大专项(2012ZX0760100)

Performance of a Modified Polyurethane Foam on Oil-Water Separation

  • 摘要: 以膨胀石墨与氧化锌为原料,采用复合改性法改性聚氨酯海绵,在硅烷偶联剂的作用下,用月桂酸的醇溶液表面修饰后制备出改性聚氨酯海绵. 通过扫描电子显微镜(SEM)与接触角测定仪进行表征,对改性聚氨酯海绵的吸油、吸水及循环使用性能进行了测定,并试验获得了最佳的油水分离条件. 结果表明:改性聚氨酯海绵具有良好的疏水超亲油性,在膨胀石墨分散液与氧化锌胶体溶液体积比为1∶1时,对于质量浓度为20 g/L的机油水溶液,饱和单位吸油量最高可达17.7 g/g,对机油的选择性吸附系数为10.41,油水分离效果最佳;在选择吸附过程中,15 min以内油水分离效率就能达到78.41%;改性聚氨酯海绵每次循环利用后,单位吸油量的减幅均低于7.3%,循环使用性能良好. 研究显示,该种改性聚氨酯海绵对油水体系中的油类具有很好的选择性,吸附完成后,经过简单的挤压将油回收后即可循环利用,具有便捷、高效、循环、无二次污染的特性.

     

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出版历程
  • 收稿日期:  2015-10-09
  • 修回日期:  2016-03-05
  • 刊出日期:  2016-07-25

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