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- W77864613 abstract "Nanocellulose has attracted attention from academic researchers and industrial corporations worldwide. It is a sustainable raw material with remarkable strength and rheological properties. The industrial production of nanocellulose is an aqueous process; however, many of its valuable properties are lost upon water removal. Indeed, once dried, nanocellulose irreversibly assembles into a plastic-like material. Currently it can be too expensive to transport the aqueous suspensions. In order to mitigate high transportation costs, a method must be developed to dry and rehydrate nanocellulose whilst maintaining its nano-morphology. The current work demonstrates that the introduction of a cationic surfactant into the aqueous nanocellulose suspension yields a chemical dewatering effect similar to that observed in papermaking, weakening the intercellulosic hydrogen bonds and allowing for reduced energy requirements during redispersion. Specifically, the current study employs cetyltrimethylammonium bromide (CTAB), a cationic surfactant in an effort to rehydrate nanocellulose whilst maintaining the desired nano-scale morphology. Fiber size has been characterized in both the liquid and solid phases using laser diffraction and scanning electron microscopy (SEM), respectively. In addition, it has been demonstrated that recovery of CTAB from dried nanocellulose pads may be achieved by soaking dried pads in an organic solvent. The recovery of CTAB will allow for a recycling step after the proposed drying process." @default.
- W77864613 created "2016-06-24" @default.
- W77864613 creator A5005575689 @default.
- W77864613 date "2014-01-01" @default.
- W77864613 modified "2023-09-27" @default.
- W77864613 title "Avoiding Aggregation During Drying and Rehydration of Nanocellulose" @default.
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