Approaching a Low-Cost Production of Cellulose Nanofibers for Papermaking Applications

摘要: The use of cellulose nanofibers (CNF) as an additive in papermaking is attractive alternative to improve paper’s strength. However, the costs CNF production need be competitive compared other approaches aimed at reducing mechanical beating. Five different types CNFs were prepared following pretreatments: TEMPO-mediated oxidation basic and neutral conditions, soft acid hydrolysis, enzymatic treatment, All pretreated fibers later passed through a high-pressure homogenizer. resulting each applied pulp investigate their reinforcing ability. Results indicated that TEMPO-oxidized offered highest increase same nanofiber content CNFs. analysis cost increasing breaking length by 75% more expensive than grades, whereas from pre-treatment similar increases lower prices. results high fibrillation degree not necessary induce dramatic paper This finding offers new possibility for escalation industrial levels with