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

• 作者: Ademir J.Zattera Camila Baldasso Lídia K.Lazzari Vitória B.Zampieri
• 来源期刊: 可再生材料杂志(英文)
• 学科: 化学
• 关键词: CRYOGEL CELLULOSE NAOH ADSORPTION compression RESISTANCE
• 年，卷（期）: kzsclzzyw_2019,（3）
• 页码范围: 227-234
• 页数: 8页
• 分类号: O64

摘要

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.