1. Comparison of Effects of Sodium Chloride and Potassium Chloride on Spray Drying and Redispersion of Cellulose Nanofibrils Suspension
- Author
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Xingxiang Ji, Jiachuan Chen, Li Weidong, Ming He, Guihua Yang, Ma Guangrui, Hye Jung Youn, and Hak Lae Lee
- Subjects
redispersion ,Aqueous solution ,Materials science ,dpray drying ,General Chemical Engineering ,Potassium ,Sodium ,cellulose nanofibrils ,chemistry.chemical_element ,potassium chloride ,Article ,Suspension (chemistry) ,lcsh:Chemistry ,chemistry.chemical_compound ,lcsh:QD1-999 ,Chemical engineering ,chemistry ,Spray drying ,Dispersion stability ,Particle-size distribution ,sodium chloride ,General Materials Science ,Cellulose - Abstract
Cellulose nanofibrils (CNFs) were exposed to the same levels of potassium chloride (KCl) and sodium chloride (NaCl) before being subjected to spray drying. The effect of NaCl and KCl on the size of atomized droplets and the hydrogen bond retardation between CNFs was investigated by characterizing product morphology, particle size distribution, dispersion stability in aqueous system, and surface chemistry. The results showed that the CNF suspensions treated with KCl could be atomized into smaller droplets during spray drying, and then CNF powder with smaller sizes could be obtained. As the agglomeration was less, and the CNF with KCl addition had good dispersion stability after redispersion compared with CNF treated by NaCl. Therefore, KCl treatment was an effective method to reduce the agglomeration of CNF during spray drying.
- Published
- 2021