用于溢油清理的聚氨酯泡沫的疏水性改性。
Hydrophobic modification of polyurethane foam for oil spill cleanup.
机构信息
MOE, Key Lab of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, China.
出版信息
Mar Pollut Bull. 2012 Aug;64(8):1648-53. doi: 10.1016/j.marpolbul.2012.05.039. Epub 2012 Jun 27.
To improve the oleophilic/hydrophobic properties of polyurethane (PU) foams for oil spill cleanup, PU samples were modified by grafting with oleophilic monomer Lauryl methacrylate (LMA) in solvent and/or coating with LMA microspheres through heating and curing. Modified PU cubes were characterized by field emission scanning electron microscopy (FE-SEM) and Fourier transform infrared spectroscopy (FTIR). The water sorption of modified PU cubes was decreased by 24-50%, while the diesel or kerosene sorption of modified PU cubes was increased by 18-27%. In water-oil system, compared with blank PU cubes, the sorption capacity of PU cubes grafted with LMA was increased by 44% for diesel and 100% for kerosene. The sorption capacity of PU cubes coated with LMA microspheres was increased by 20% for diesel and 7% for kerosene. The solvent sorption of modified PU cubes could reach 50-69 g/g. The modified PU cubes can be effectively used in oil/solvent spill cleanup.
为改善用于溢油清理的聚氨酯（PU）泡沫的亲油/疏水性能，通过溶剂接枝亲油单体月桂基甲基丙烯酸酯（LMA）和/或通过加热固化涂覆 LMA 微球对 PU 进行改性。采用场发射扫描电子显微镜（FE-SEM）和傅里叶变换红外光谱（FTIR）对改性 PU 立方体进行了表征。改性 PU 立方体的吸水率降低了 24-50%，而对柴油或煤油的吸附率增加了 18-27%。在油水体系中，与空白 PU 立方体相比，接枝 LMA 的 PU 立方体对柴油的吸附率增加了 44%，对煤油的吸附率增加了 100%。涂覆 LMA 微球的 PU 立方体对柴油的吸附率增加了 20%，对煤油的吸附率增加了 7%。改性 PU 立方体的溶剂吸附率可达 50-69 g/g。改性 PU 立方体可有效用于油/溶剂溢油清理。
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