Open AccessPreparation of cellulose sponge from waste newspaper
Author(s) -
Minwen Jiang,
Carmen Mei,
Luyao Jiang,
Xiaowen Zhou,
Hong Hai Huang
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/295/3/032006
Subject(s) - cellulose , microcrystalline cellulose , absorption of water , aqueous solution , urea , sponge , chemistry , nuclear chemistry , solvent , anhydrous , hydrolysis , materials science , chemical engineering , organic chemistry , botany , engineering , composite material , biology
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/SiO 2 , and the best oil rate was 157 wt%.