The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Cellulose nanocrystals (CNCs) have attracted considerable attention as nanofillers to enhance the crystallization of poly(lactic acid) (PLA) and to improve the mechanical properties of the composites. There are two challenges: the inferior thermostability of CNCs and the compatibility of CNCs and polymeric matrix. Poly(ethylene glycol) epoxide, a compatibilizer and carrier, was grafted on CNC surfaces...
Cationic cellulose nanocrystals (CCNCs) with more cationic groups were yielded when dialdehyde cellulose nanocrystals with more aldehyde groups were reacted with (2-hydrazinyl-2-oxoethyl)-trimethylazanium chloride (GT reagent), keeping the other conditions constant. CCNCs were proved to possess high adsorption capacity toward reactive blue 19 (RB 19). To make nanocrystals more easily separated from...
In order to improve the thermal stability of cellulose nanocrystals (CNCs) and to weaken their hydrophilicity, extensive research has been conducted to graft hydrophobic molecular chains on CNC surfaces to cover and/or replace hydroxyl and sulfate ester groups. According to our previous research, it was proposed that triazine derivative is an ideal candidate to modify CNCs. In this study, triazine...
Dialdehyde celluloses (DACs) with smaller nanocrystals were prepared during the oxidization of nanocrystalline cellulose (NCC) using increased NaIO4. When NCC from the hydrolysis of microcrystalline cellulose (64 wt% H2SO4, 45 °C, 1 h) was periodate oxidized at NaIO4/anhydroglucose unit mole ratio of 5 and pH 6.5 for 5 h, the product of DAC5 can easily dissolve in water at ambient temperature. It...
This work investigates reinforcing poly(lactic acid) (PLA) nanocomposites using triazine derivative-grafted cellulose nanocrystals (CNCs). A hydrophobic triazine derivative was synthesized and applied to modify CNCs to improve their thermal stability and diminish the hydrophilicity of the nanoparticles. CNCs before and after modification were used to reinforce PLA nanocomposites by a hot compression...
Nanocrystalline cellulose (NCC) is a promising nanofiller for reinforcing chitosan (CTS) film. The flocculation of the NCC suspension in acidic CTS solution is the key problem that makes many properties such as the tensile strength bad. A derivative of nanocellulose, namely cationic dialdehyde cellulose (CDAC), is synthesized in the current study to avoid the flocculation. A CDAC suspension is prepared...
We report a study on the synthesis of a nanocomposite that contains anatase titania (TiO2) particles, organo-montmorillonite (OMMT) and cellulose-g-poly(methyl methacrylate) (cellulose-g-PMMA), and the application of the nanocomposite as a photocatalyst in degradation of 2,4-dichlorophenol (2,4-DCP). The nanocomposite was characterized by Fourier-transform infrared spectra, X-ray diffraction, transmission...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.