- Original material: Dissolving cotton pulp, Bleached sulfate soft-wood pulp, Bleached sulfate hard-wood pulp
- Preparation: Nanofibrillat the cellulose with high pressure homogenizer or super micro-grinder.
- Macro morphology: aqueous gels(soild content:0.5-5%), white powder or flexible aerogels.
- Types: un-modified NFC, Cationically modified NFC, Carboxymethylated NFC, TEMPO-ed NFC. ( We can supply different size , electric charge and functionization according your need.)
- Dispersion: no hard agglomeration for NFC aqueous gels, can be redispersed in water after fried-drying or spray-drying.
Price depends on the quantity. Please check the price.
New!! we are glad to provide FREE NFC sample (100 gram slurry, 3% solids) to universities and research institutes for preliminary research. Customer is responsible for the shipping cost.
The NFC free sample is NOT available for commercial reselling.
Please send your inquiry to firstname.lastname@example.org .
The introduction of NFC
Nanofibrillated cellulose (NFC), also called 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 20–60 nm and it has a length of several micrometers. Unlike NCC, NFC exhibits both amorphous and crystalline parts and presents a web-like structure. NFC 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 NFC is more flexibl, longern and has larger surface area than any other fibres, it is being developed for use in many scales, ranging from addition in food, biodegradable food packaging, pigment, selective delivery/separation, tissue-engineering, nanocomposites upon impregnation by polymers, and other medical and pharmaceutical applications.
Pictures of NFC
Fig. 1 The picture of different types of NFC (A) TEMPO-ed NFC, concentration: 0.51% (B) Cationically modified NFC , DS=0.717, concentration: 0.93%; (C) Carboxymethylated NFC, DS=0.835, left concentration: 0.7% and right concentration: 0.29% (D) un-modified NFC, concentration: 1.34%
Fig.2 The picture of the freeze dried NFC (A) un-modified NFC (B) Cationically modified NFC (C) Carboxymethylated NFC (D) TEMPO-ed NFC
Fig. 3 The TEM of NFC
Fig. 4 The picture of TEMPO-CNF freeze-dried powder