17 research outputs found
Novel transparent nanocomposite films based on chitosan and bacterial cellulose
Get PDFNew nanocomposite films based on different chitosan matrices (two chitosans with different DPs and one water soluble derivative) and bacterial cellulose were prepared by a fully green procedure by casting a water based suspension of chitosan and bacterial cellulose nanofibrils. The films were characterized by several techniques, namely SEM, AFM, X-ray diffraction, TGA, tensile assays and visible spectroscopy. They were highly transparent, flexible and displayed better mechanical properties than the corresponding unfilled chitosan films. These new renewable nanocomposite materials also presented reasonable thermal stability and low O(2) permeability.FCT - SFRH/BD/41388/ 2007FCT - SFRH/BPD/38515/200
Investigation of Lightweight and Flexible Carbon Nanofiber/Poly Dimethylsiloxane Nanocomposite Sponge for Piezoresistive Sensor Application
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Verfahren zur Verbesserung der Reaktionsaktivitaet von Cellulose zur Herstellung von Celluloseacetat
No full textMethod for improving the reactivity of cellulose for cellulose acetate production comprises treating pulp or linters dispersed in water with cellulytic enzymes. ADVANTAGE - The reactivity for acetylation can be nearly optimised and the process can be integrated with production of the pulp or purification of the linters
Bacterial cellulose/hyaluronic acid composite hydrogels with improved viscoelastic properties and good thermodynamic stability
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Effect of coagulation agents on morphology and structure of cellulose/silk fibroin films with 1-butyl-3-ethylimidazolium chloride as solvent
No full textCrystalline Structure of Microbial Cellulose Compared with Native and Regenerated Cellulose
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