title: Hydrophobic modification of polyurethane foam for oil spill cleanup.
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.
authors: MOE, Key Lab of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, China.
authors: Hua
authors: H
authors: Li
authors: Lifen
authors: L
authors: Liu
authors: Fenglin
authors: F
authors: Yang
mesh_terms: D000327:Adsorption; D052918:Environmental Restoration and Remediation / Q000379:methods*; D057927:Hydrophobic and Hydrophilic Interactions; D008689:Methacrylates / Q000737:chemistry; D010578:Petroleum / Q000032:analysis*; D059392:Petroleum Pollution / Q000032:analysis*; D011140:Polyurethanes / Q000737:chemistry*; D012623:Seawater / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000737:chemistry*
chemical_list: D008689:Methacrylates; D010578:Petroleum; D011140:Polyurethanes; D014874:Water Pollutants, Chemical; C115846:dodecyl methacrylate; C028279:polyurethane foam