Chitosan based nanocomposite membranes with cellulose nanowhisker as nanoadditive [Elektronisk resurs]

• Biobased nanocomposite membranes were prepared using chitosan as te matrix and cellulose nano whisker as the reinforcing phase. Cellulosee production. Atomic force microscopy of the nanowhiskers showed diameters of 10 -20nm and lengths of 250 - 350nm. Nanocomposites were prepared in 1:1, 1:2 and 1:3 ratios to investigate the effect of nanoadditive concentration on the membrane properties. The nanocomposites were prepared by solution mixing followed by freeze-drying, to obtain porous structures with high degree of internal surface area. These nanocomposites were further treated with ammonia vapours to prepare the crosslinked nanocomposites and thereby stabilize it towards moisture and pH variations. The morphology, surface area, crystallinity, porosity, and mechanical properties of prepared membranes were studied. The effect of the nanocomposite composition, crosslinking and the pore size distribution on the water transport through the membranes was also evaluated. 

Ämnesord

Engineering and Technology  (hsv)

Industrial Biotechnology  (hsv)

Bio Materials  (hsv)

Teknik och teknologier  (hsv)

Industriell bioteknik  (hsv)

Biomaterial  (hsv)

Engineering and Technology  (hsv)

Chemical Engineering  (hsv)

Chemical Process Engineering  (hsv)

Teknik och teknologier  (hsv)

Kemiteknik  (hsv)

Kemiska processer  (hsv)

Trä och bionanokompositer  (ltu)

Wood and Bionanocomposites  (ltu)

Chemical Technology  (ltu)

Kemisk teknologi  (ltu)