Possible Interaction: Cellulose and Urea

“Kt/V and urea reduction ratio were higher when cellulose or modified cellulose membranes were used in the few studies that measured these outcomes.”

“ Urea encouraged the digestibility of pentosanes, glucose and cellulose , but reduced the energetic efficiency of the VFA produced.”

“The NaOH, urea and H2O molecules surrounding the cellulose chain within radial distance 0.35 nm have smaller diffusion coefficients than those in bulk state.”

“These results are consistent with PTssNMR data, which show the reduction and in some cases the absence of crystalline portions of cellulose in solution, suggesting a pronounced positive effect of the urea on the dissolution efficiency of cellulose.”

“Further investigation was carried out for the amount of nitrogen yielded in CC as different urea concentrations were applied to react with cellulose.”

“By direct treatment with TiCl4 under anhydrous conditions, the urea impregnation of cellulose impacts both the TiO2 morphology and the carbon left by cellulose after pyrolysis.”

“Besides, urea addition reduced degradation of cellulose and hemicellulose, and increased degradation of lignin in giant reed during ensilage.”

“The ability of cellulose I, II, III, and IV to form hydrogen bonds with sodium hydroxides was nearly the same, while gradually increased when cellulose preparations were associated with urea.”

“Storage … urea treatment was adverse to biogas production … wheat straw and the contents of cellulose and hemicellulose of wheat straw were decreased by 18.25%-27.22% and 5.31%-16.15% and the TS biogas yield was decreased by 2.80%-7.71% after 120 day's storage.”

“The result indicates that CC was generated as the cellulose reacted with urea , and the crystalline form of cellulose has changed after the esterification reaction.”