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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Eco-friendly foams of castor oil based-polyurethane with Artemisia residue fillers for discarded vegetable oil sorption

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Author(s):
Maia, Lana S. [1] ; Zanini, Noelle C. [1] ; Claro, Amanda Maria [2] ; do Amaral, Nayara Cavichiolli [2] ; Barud, Hernane S. [2] ; Mulinari, Daniella R. [1]
Total Authors: 6
Affiliation:
[1] Univ Estado Rio De Janeiro UERJ, Dept Mecan & Energia, Resende - Brazil
[2] Univ Araraquara, Programa Posgrad Biotecnol, Araraquara UNIARA, Araraquara, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of Applied Polymer Science; v. 138, n. 43 NOV 15 2021.
Web of Science Citations: 0
Abstract

In this article, a new approach is applied to reuse Artemisia residue (AR) as filler in polyurethane (PU) foam for vegetable oil sorption for discarded cooking oil applications. The pristine PU and PU/X%AR foams (X stands for AR content of 5-20%wt/wt) were characterized by SEM, density, contact angle (CA), thermogravimetric analysis, and Fourier transform infrared spectroscopy. The influence of two experimental factors, such as contact time (30-180 s) and initial vegetable oil concentration (20-200 g/L), was investigated in vegetable oil and vegetable oil/mineral water systems. The AR loading of the foams increased the foams' density and influenced the morphological, physical, thermal, and sorption properties. The PU/20%AR sample presented the highest CA (122.5 degrees) and the best sorption capacity and efficiency in both systems due to the small pores size and higher frequency of pores. Langmuir and Freundlich isotherm models well defined the sorption mechanisms. The Langmuir model represented the best fit of experimental data for PU/20%AR with a maximum adsorption capacity of 16.86 g/g. The PU/20%AR presented reusability of 7 cycles, conserving their hydrophobicity after the process. Therefore, AR is an innovative route as fillers in PU foams for discarded vegetable oil sorption, and the circular economy can benefit from the reuse of discarded vegetable cooking oil. (AU)

FAPESP's process: 18/25512-8 - Biocelulose-based Cell Culture Platform
Grantee:Hernane da Silva Barud
Support Opportunities: Regular Research Grants
FAPESP's process: 13/07276-1 - CEPOF - Optics and Photonic Research Center
Grantee:Vanderlei Salvador Bagnato
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC