The only difference of the fibers is their mantlecore
structure, which originates from the evaporation of the
coagulation liquid and its permeation into the fiber surface while
the hot salt melt solutions is submerged into the regeneration bath.
There is a linear correlation between extrusion temperature and
the surface area of the supercritically dried cellulose fibers. The
special morphology of the fibers with a meso and macro porous
structure built upon a nano-porous network opens new fields of
applications. One drawback of the cellulose aerogel fibers is their
low tensile strength compared to compact technical fibers, but our
preliminary test showed that using another type of salt hydrate
melts such as ZnCl2 and different methods of filament production
can solve the problems