Cellulose Nanofiber (Cellulose Nanofibril, Nanofibrillated Cellulose, CNFs)
Width: 4–10 nm, Length: 1–3 µm, Dry Powder
Cellulose nanofibrils are originally derived from wood-based fibrils with micrometer-scale lengths and nanometer-scale widths formed during cellulose biosynthesis. Today, cellulose nanofibrils (CNFs) attract significant scientific and commercial interest, with applications in foods, cosmetics, pharmaceuticals, paints, drilling muds, paper additives, barrier coatings, medical products, and more. Our Nanofibrillated Cellulose offers competitive performance and pricing compared to alternatives.
Technical Properties
| Appearance (Color) | White |
|---|---|
| Appearance (Form) | Dry powder (~4 wt.% moisture) |
| Average Particle Size | 4–10 nm wide, 1–3 µm length |
| Cellulose Crystallinity (XRD) | 92% |
| Decomposition Temperature (TGA in N₂) | 329 °C |
| Density | 1.50 g/cm³ |
Frequently Asked Questions About CNF
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What is the source of the Nano Fibrillated Cellulose?
The raw material is cotton. -
What is the surface charge of the NFC?
The surface is carboxymethylated. CNF is modified by carboxymethylation and then mechanically processed. -
Is the CNF hydrophilic?
Yes. Using a high-pressure homogenizer at 40 MPa for 2–3 passes, it can disperse in water. -
Is the CNF freeze-dried/spray-dried/TEMPO-oxidized?
It is produced by a normal drying process. -
Are there any surface groups on CNF?
The surface contains both hydroxyl and carboxyl groups, with a carboxyl content of 2.5 mmol/g (determined by conductivity titration). The carboxyl groups are stable and resistant to environmental changes. -
What is the main functional group of CNF?
The primary functional group is –OH.
Applications
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Body Armor Applications
The crystal structure of nanocellulose consists of a tightly packed array of needle-like crystals with extremely high toughness—nearly eight times stronger than stainless steel—making nanocellulose a promising material for future body armor development. -
Flexible Batteries
Traditional battery separators are thick and rigid, limiting use in flexible designs. Thin, flexible nanocellulose combined with graphene can enable the creation of bendable batteries. -
Flexible Screens
Nanocellulose is bendable, transparent, lightweight, and strong, making it a suitable replacement for plastic or glass in next-generation flexible display technologies. -
Filters
Nanocellulose can filter and purify various liquids, including desalinating seawater, trapping harmful chemicals in cigarettes, and filtering blood cells during transfusion. -
Absorbent Aerogels
When blended with aerogel foam, nanocellulose forms ultra-porous and highly absorbent materials suitable for lightweight wound dressings and tampons. -
Fuel-Efficient Cars
Nanocellulose produced from algae offers a low-cost method suitable for bulk manufacturing. Automotive components—from interior trim to structural parts—can be made from lightweight nanocellulose composites, reducing component weight and lowering fuel consumption. -
Biofuel
During algae-based nanocellulose production, biofuel can be co-generated by genetically modifying beneficial microorganisms. Although this process does not produce pure nanocellulose, it yields a valuable byproduct.
