纳米纤维素
纤维素
皮克林乳液
化学工程
水溶液
两亲性
乳状液
材料科学
溶剂
高分子化学
化学
有机化学
复合材料
聚合物
共聚物
工程类
作者
Shingo Yokota,K. Kamada,Aki Sugiyama,Tetsuo Kondo
标识
DOI:10.1016/j.carbpol.2019.115293
摘要
Cellulose nanofibrils prepared by aqueous counter collision (ACC-nanocelluloses) have specific properties. In this study, the use of ACC-nanocelluloses as emulsifiers and stabilizers was investigated. Oil-in-water Pickering emulsions with long-term stabilities were easily prepared by ultrasonically mixing aqueous ACC-nanocellulose dispersions with non-polar solvents. Stable Pickering emulsions were obtained because the emulsification abilities of the ACC-nanocelluloses were significantly higher than those of cellulose nanofibrils prepared by high-pressure homogenization or other chemical preparation methods. This might be due to exposure of inherently hydrophobic surface planes of cellulose nanofibrils by ACC. The emulsification and stability of the Pickering emulsions were sensitive to the solvent properties such as permittivity, density and viscosity.
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