Author(s): Li H, Liu L, Yang F
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Abstract 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. Copyright © 2012 Elsevier Ltd. All rights reserved.
This article was published in Mar Pollut Bull
and referenced in Journal of Chemical Engineering & Process Technology