Polypropylene (PP) fibers are commonly used as an oil remediation sorbent. The hydrophobic nature of PP as well as its density (0.90-0.91 g/cc) makes it an excellent candidate for oil sorption of spills on bodies of water. Although conventional PP sorbents already adsorb more oil than other materials, the sorption ratio of grams of oil to grams of material could be increased by replacing the round PP fibers with shaped PP fibers. The increased surface area of shaped fibers as well as the presence of channels with the individual filament structures would lead to a higher oil sorption as compared to round fibers of the same denier.
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