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Indexed by:期刊论文

Date of Publication:2012-08-01

Journal:MARINE POLLUTION BULLETIN

Included Journals:PubMed、SCIE、EI、Scopus

Volume:64

Issue:8

Page Number:1648-1653

ISSN No.:0025-326X

Key Words:Oil pollution; Oil sorbent; Polyurethane foams; Oleophilic

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. (C) 2012 Elsevier Ltd. All rights reserved.