Overview
Combining the high-aspect-ratio network structure of CNF with a sulfate ester anionic surface, this material is suitable for research on aqueous dispersion, rheology, functional films, and interfacial composites.
General information
| Product Name | Sulfated Cellulose Nanofibrils |
|---|---|
| Abbreviation | S-CNF |
| Surface Functional Groups | –OH、–OSO₃H |
| Product Form | hydrogel |
| Raw Material Source | Plant-Derived Cellulose |
| Surface Charge | Anionic |
Specifications
| Appearance | Transparent, paste-like gel |
|---|---|
| Solid Content | 1wt% |
| Diameter | 10-30nm |
| Length | ≥5μm |
| Crystallinity | ≥70% |
| Functional Group Content | 0.04mmol/g |
| pH | 6-8 |
| Dispersion Medium | Deionized Water |
Product details
Product Appearance
Product Characterization
Recommended Applications
Functional Films; Hydrogels; Coatings; Rheology Modification; Composite Materials; Interfacial Research
Application Guidelines
Recommended Dosage
Begin screening at 0.1–1 wt%.
Addition Method
Disperse uniformly in the aqueous phase first, then gradually incorporate into the polymer, coating, or gel system.
Dispersion Method
Mechanical stirring is recommended as the primary method. High-speed shear mixing may be used for high-viscosity systems.
Precautions
The sulfate ester groups impart an anionic character to the material. Attention should be paid to the potential risk of flocculation caused by salt concentration, pH, and cationic components.
Small-Scale Trial Recommendations
It is recommended to evaluate the effects of different addition levels on viscosity, network structure, film formation, and system stability.
Packaging and Transportation
Available in gram-scale samples, kilogram-scale trial quantities, and bulk orders of one metric ton or more, meeting procurement needs at different stages, including research and testing, pilot-scale validation, and industrial-scale applications.
Samples are supplied in sealed packaging and are preferably shipped via international express delivery. Please contact our customer service team for an international shipping quotation when placing an order.
For kilogram-scale and larger quantities, packaging options such as drums, large drums, or IBC totes are selected according to the product form and order volume, with an appropriate logistics and transportation method arranged accordingly.
FAQ
Q: How does CNF differ from other types of nanocellulose in terms of structure and applications?
A: CNF differs from other types of nanocellulose in morphology, aspect ratio, and network-forming ability. Material selection should be based on factors such as dimensions, surface functional groups, dispersion medium, and target performance.
Q: Why does CNF tend to agglomerate, and how should it be dispersed?
A: Nanocellulose has a high specific surface area and strong surface interactions, making it prone to agglomeration when the local concentration is too high or the ionic environment changes. Pre-dilution and gradual addition are recommended, with stirring, shear mixing, or moderate ultrasonication selected according to the specific system.
Q: Is a higher CNF loading always better for reinforcement in composite materials?
A: No. Excessive loading may result in agglomeration, excessively high viscosity, and interfacial defects. It is recommended to first establish an effective loading range using a blank control and low-, medium-, and high-loading gradients.
Q: What parameters should be confirmed when purchasing CNF for the first time?
A: It is recommended to confirm the product form, solids content, dimensions, surface functional groups and their content, pH/dispersion medium, surface charge, and the corresponding COA. The recommended small-scale trial method should also be confirmed based on the target application system.
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