Evaluation of crude oil and vegetable oil sorption by polyrethane composities with different concentrations of Imperata Brasiliensis fiber

Abstract: This study proposes the development of sustainable polyurethane (PU) composites based on castor oil, reinforced with Brazilian satintail fibers (Imperata brasiliensis), aiming at their application as sorbent materials for the removal of oils in contaminated environments. Formulations with different fiber contents were prepared to investigate the impact on the

Abstract: Toxic elements (arsenic,cadmium,lead,andmercury) are public health concerns and listed as priority pollutants for their severe toxic effects, especially in children, whose biological systems are developing. The aim of this study was to determine the concentrations of toxic elements (As,Cd,Pb,andHg) in plastic utensils using x-ray fluorescence and pecific migration tests.