Technical FAQ About Cellulose Nanofiber (CNF), 4-10 nm Wide, 1-3 µm Length

1) What are the dimensions of this Cellulose Nanofiber (CNF) grade?

This Cellulose Nanofiber (CNF) grade has an average width of 4-10 nm and a length of 1-3 µm. The material therefore combines nanometer-scale fibril width with micrometer-scale fibril length and is supplied as a dry powder.

2) What is the crystallinity of this Cellulose Nanofiber according to XRD analysis?

The cellulose crystallinity of this CNF grade is 92% as determined by X-ray diffraction (XRD). This value is a product-specific parameter that should be considered when comparing this material with other cellulose nanofiber or nanofibrillated cellulose grades.

3) What is the decomposition temperature of this CNF grade?

The reported decomposition temperature of this Cellulose Nanofiber is 329°C based on thermogravimetric analysis (TGA) under nitrogen. This value should be considered when designing processing conditions involving elevated temperatures.

4) Is this Cellulose Nanofiber supplied as a suspension or as a dry powder?

This CNF product is supplied as a white dry powder containing approximately 4 wt.% moisture. It is not supplied as a ready-to-use aqueous suspension, so dispersion preparation is required before use in liquid formulations.

5) What is the density of this Cellulose Nanofiber powder?

The reported density of this Cellulose Nanofiber grade is 1.50 g/cm³. This specification can be useful when calculating material loading and formulation ratios for composites, coatings and other CNF-containing systems.

6) What is the raw material source of this Cellulose Nanofiber?

The raw material used for this Cellulose Nanofiber grade is cotton. This is an important product-specific distinction for researchers evaluating CNF materials according to cellulose source and processing route.

7) Is the surface of this Cellulose Nanofiber chemically modified?

Yes. The surface of this CNF grade is carboxymethylated. The cellulose nanofiber is modified by carboxymethylation and subsequently mechanically processed, making surface chemistry an important characteristic of this specific grade.

8) Is this carboxymethylated Cellulose Nanofiber hydrophilic?

Yes. This Cellulose Nanofiber grade is hydrophilic. Its hydrophilic character should be considered when preparing water-based formulations, dispersions and composite systems.

9) How can this dry Cellulose Nanofiber powder be dispersed in water?

According to the product specifications, this CNF can be dispersed in water using a high-pressure homogenizer at approximately 40 MPa for 2-3 passes. Dispersion conditions may require further optimization depending on CNF concentration and the composition of the final formulation.

10) Is this CNF freeze-dried, spray-dried or TEMPO-oxidized?

This Cellulose Nanofiber grade is described as normally dried rather than freeze-dried or spray-dried. The specified surface modification for this product is carboxymethylation rather than TEMPO oxidation.

11) Which specifications are most important when selecting this CNF for a formulation?

The key specifications of this grade are its 4-10 nm fibril width, 1-3 µm fibril length, 92% cellulose crystallinity, approximately 4 wt.% moisture content, 1.50 g/cm³ density, carboxymethylated surface and hydrophilic character. These parameters should be evaluated together when determining compatibility with a specific formulation or processing route.

12) What distinguishes this Cellulose Nanofiber grade from a generic CNF specification?

This product is defined by a specific combination of 4-10 nm width, 1-3 µm length, 92% crystallinity, carboxymethylated surface chemistry, cotton-derived raw material and dry-powder form. These specifications provide a more precise basis for material selection than the general term "cellulose nanofiber" alone.

13) What is the main functional group of CNF?

The main functional group is -OH.

 TEM Image of NG01NC0201(CNFs)