Open Access

ARTICLE

Analysis of Compression Resistance and Oil Adsorption Capacity of Cellulose/NaOH Cryogels

by Lídia K. Lazzari^*, Vitória B. Zampieri, Ademir J. Zattera, Camila Baldasso

Center for Exact Sciences and Technologies - University of Caxias do Sul. 1130, Francisco Getúlio Vargas Street Caxias do Sul, 95070-560, Brazil.

* Corresponding Author: Lídia Kunz Lazzari. Email: .

Journal of Renewable Materials 2019, 7(3), 227-234. https://doi.org/10.32604/jrm.2019.00024

Abstract

This work aimed at analyzing the petroleum adsorption capacity and the compressive strength of cellulose cryogels produced with the addition of 4 and 8% (w/w) sodium hydroxide (NaOH). Cryogels were produced from a 1.5% (m/m) suspension of cellulose microfibers, which originated from Pinus elliotti, in distilled water. The addition of NaOH increased the compression strength of cryogel by 30% when compared to cryogel without the reagent. Due to the 50% decrease in volume, the cryogel FLNB-8h (8% NaOH) has its petroleum adsorption capacity decreased in average by 58%, whereas the FLNB-4 (4% NaOH) cryogel had it only by 14%. The cellulose suspension which provided the best results for the properties of the cryogels tested had a 4% concentration of NaOH.

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Keywords

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