Sorbent system based on organosilane‑coated polyurethane foam for oil spill clean up

• Autor(a) principal: Zimmermann, Matheus Vinicius Gregory
• Data de Publicação: 2021
• Outros Autores: Zattera, Ademir José, Fenner, Bruna Rossi, Santana, Ruth Marlene Campomanes
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFRGS
• Texto Completo: http://hdl.handle.net/10183/219761
• topic: Espuma de poliuretano; Sorção; Remoção de poluentes; PU foams; Sorbents; Organosilane; Oil spill

In this study, fexible and open cell polyurethane foams were formulated and chemically modifed with organosilane to be used as a sorbent system for oil spill cleanup. Six polyurethane foams with diferent densities and three oil types with diferent viscosities were investigated. Moreover, sorbents were characterized based on their surface modifcation and sorption capacities. The main results indicated that the surface treatment on the solid fraction of the foam was efective, observing by the contact angle, thereby increasing the hydrophobicity of the samples. Cell morphology and foam density directly afect the sorption capacity of foams. Foams with high densities are indicated for oils with low viscosity, and foams with low densities are indicated for viscous oils. The oil sorption capacity also depends on oil viscosity (and temperature).