- Original material: Bleached softwood kraft pulp, Bleached hardwood kraft pulp, Kenaf pulp, and dissolving grade cotton pulp,
- Preparation: Nanofibrillated the cellulose with a high-pressure homogenizer (HPH) or supermass colloider (SMC).
- Macro morphology: aqueous gels (solid content:0.5-5%), white powder or flexible aerogels.
- Types: un-modified CNF, Cationically modified CNF, Carboxymethylated CNF, TEMPO-ed CNF.
- Dispersion: no hard agglomeration for CNF aqueous gels, can be re-dispersed in water after fried-drying or spray-drying with a high-speed homogenizer or supermass colloider.
The price depends on the quantity. For more information on product specification and price, please check the price.
We are glad to provide a FREE CNF sample (CNF-Slurry-SMC, 100 grams slurry, 1-3% solids, prepared by a supermass colloider) to universities and research institutes for preliminary research.
Customer is responsible for the shipping cost and customs clearance.
The free CNF sample is NOT available for commercial reselling.
Please send your inquiry to firstname.lastname@example.org.
The introduction of CNF
Cellulose Nanofibrils (CNF), also called Nanofibrillated cellulose (NFC), Microfibrillated cellulose (MFC), or cellulose microfibril, microfibrillar cellulose, can be viewed as a cellulosic material, composed of expanded high-volume cellulose, moderately degraded and greatly expanded in surface area, and obtained by a homogenization. Its diameter is in the range of 20–60 nm and it has a length of several micrometers. Unlike CNC, CNF exhibits both amorphous and crystalline parts and presents a web-like structure. CNF normally is a viscous and shear-thinning aqueous gel at a very low concentration (between 2 and 7%, w/w). This is one of the two main characteristics of such a nanomaterial, and the other is its ability to form a transparent film once it is dried.
Both these key properties are linked to its high specific area (at least ten times larger than that of cellulose fibers) and its extensive hydrogen-bonding ability.
Because CNF is more flexible, longer, and has a larger surface area than any other fibers, it is being developed for use in many scales, ranging from addition in food, biodegradable food packaging, pigment, selective delivery/separation, nanocomposites upon impregnation by polymers, and other medical and pharmaceutical applications.
Pictures of CNF
Fig. 1 The picture of different types of CNF (A) TEMPO-ed CNF, concentration: 0.51% (B) Cationically modified CNF, DS=0.717, concentration: 0.93%; (C) Carboxymethylated CNF, DS=0.835, left concentration: 0.7% and right concentration: 0.29% (D) un-modified CNF, concentration: 1.34%
Fig.2 The picture of the freeze-dried CNF (A) un-modified CNF (B) Cationically modified CNF (C) Carboxymethylated CNF (D) TEMPO-ed CNF
Fig. 3 The TEM of CNF
Fig. 4 The picture of TEMPO-CNF freeze-dried powder