Cellulose aero-, cryo- and xerogels: towards understanding of morphology control

Nela Buchtová, Tatiana Budtova*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

55 Citations (Scopus)

Abstract

Highly porous, lightweight versatile cellulose materials were prepared via dissolution–coagulation and subsequent various drying routes. Cellulose was dissolved in ionic liquid/DMSO mixture and coagulation was performed in ethanol. The as prepared wet precursors were used to make materials with three different drying methods: supercritical CO2 drying, freeze-drying and vacuum drying. The influence of cellulose concentration and drying method on the density, porosity, specific surface area and morphology of cellulose materials is presented and discussed. We provide the understanding of morphology development as a function of processing conditions and give the “recipes” for porosity control.

Original languageEnglish
Pages (from-to)2585-2595
Number of pages11
JournalCellulose
Volume23
Issue number4
DOIs
Publication statusPublished - 1 Aug 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • Cellulose
  • Freeze-drying
  • Morphology
  • Porosity
  • Specific surface area
  • Supercritical CO drying

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