This cellulose nanocrystal (CNC), also called nanocrystalline or crystalline nanocellulose, is supplied as a white to off-white spray-dried powder with moisture below 6.0%. The crystals measure 10-20 nm in width and 300-900 nm in length, and XRD shows a cellulose crystallinity of 92%.
The material is extracted from cellulose, the main structural component of trees and plants, by sulfuric acid hydrolysis without any binders. The resulting powder redisperses into uniform nanometric crystals. Their surfaces carry primary and secondary hydroxyl groups together with sulphate half-ester groups introduced during hydrolysis, giving a chemically reactive surface that can be tailored to different uses.
Deionized water is the usual dispersion medium; tap water also works but increases particle association. Aprotic solvents such as DMSO, DMF and ethylene glycol, as well as water-alcohol mixtures, are also suitable. The crystals are heat stable for applications up to 280°C, with a decomposition temperature of 349 °C (TGA in N2).
- Reinforcing lightweight composites, such as those studied for vehicle interior components.
- Research into thin, flexible battery separators in combination with graphene.
- Development of bendable, transparent materials for flexible screen studies.
- Filtration and purification of liquids.
- Preparation of porous, absorbent aerogels for materials such as wound dressings.
- Body armor materials research based on the high strength of the crystal structure.
| Brand | Nanografi |
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- Product code: NG01NC0101
- Appearance (Color): White/off white
- Appearance (Form): Spray Dried powder (<6.0% moisture)
- Average Particle Size: 10-20 nm wide, 300-900 nm length
- Cellulose Crystallinity (XRD): 92%
- Decomposition Temperature (TGA in N2): 349 °C
- Density: 1.49 g/cm3
- Bulk Density: 0.5-0.8 g/cm3
- Particle Size, dispersed powder at 2% (w/w): <150 nm
- pH, dispersed powder at 2% (w/w): 5.0-8.0
- Conductivity, dispersed powder at 2% (w/w): <350 µS/cm
- Viscosity, dispersed powder at 2% (w/w): >5 cP
- Production Method: Sulfuric acid hydrolysis
- Shelf Life: 4 year
The powder has a stated shelf life of 4 year. For best dispersion, use deionized water rather than tap water.
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