Preparation of cellulose sponge from waste newspaper

2019 5th International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Jiang, M.M.^1 ; Mei, C.T.^1 ; Jiang, L.Y.^1 ; Zhou, X.L.^2 ; Huang, H.^1

School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo

315211, China^1

School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan

430070, China^2

关键词: Anhydrous sodium sulfate;    Freezing methods;    Micro-crystalline cellulose;    Naoh/urea aqueous solutions;    Oil absorption;    Pore-forming agents;    Super absorbent;    Trimethoxysilane;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/295/3/032006/pdf
DOI  :  10.1088/1755-1315/295/3/032006

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Using cellulose extracted from waste newspaper as raw material, NaOH/urea aqueous solution as solvent, anhydrous sodium sulfate as pore-forming agent, cellulose sponge with super absorbent capacity was prepared by freezing method, and hydrophobic cellulose sponge was prepared by immersing cellulose sponge into hydrolysate of cetyltrimethoxysilane with different composition. The water absorption and oil absorption of water-absorbent and hydrophobic cellulose sponge samples were tested and characterized by infrared and X-ray diffraction. The results showed that the water absorption of water-absorbent cellulose sponge could reach 560 wt% under the conditions of 3 g of microcrystalline cellulose, 15 g of pore-forming agent and 50 g of NaOH/urea solution. Hydrophobic cellulose sponge was prepared by hydrolysis of hexadecyl trimethoxysilane/SiO2, and the best oil rate was 157 wt%.