Overview
Aldehyde-functionalized CNC containing reactive aldehyde groups, capable of undergoing further reactions with nucleophilic groups such as amino groups, thereby providing active sites for crosslinking, coupling, and interfacial reinforcement. CelluBio provides material selection guidance and preliminary trial recommendations for academic research and industrial R&D applications.
General information
| Product Name | Dialdehyde Cellulose Nanocrystal |
|---|---|
| Abbreviation | DACNC |
| Surface Functional Groups | –OH、–CHO |
| Product Form | Aqueous Dispersion / Powder |
| Raw Material Source | Plant-Derived Cellulose |
| Surface Charge | Typically Nonionic / Weak Surface Charge |
Specifications
| Appearance | Pure White Liquid |
|---|---|
| Solid Content | 2-4wt%（Available upon request） |
| Diameter | 10-30nm |
| Length | 200-500nm |
| Crystallinity | ≥50% |
| Surface Functional Group Content | 2.6mmol/g |
| pH | 6-8 |
| Dispersion Medium | Deionized Water |
Product details
Product Appearance
Product Characterization
Recommended Application Areas
Reinforcement of Amino-Containing Systems, such as Gelatin；Hydrogels；Crosslinked Materials；Functional Films；Grafting and Functionalization；Biomaterials Research
Application Guidelines
Recommended Dosage
For composite reinforcement, an initial dosage of 0.1–2 wt% is recommended. For crosslinking applications, the dosage should be designed based on the aldehyde group content and the concentration of reactive groups such as amino groups.
Addition Method
First disperse DACNC uniformly, then add it to gelatin, chitosan, or other polymer systems containing reactive functional groups.
Dispersion Method
Mechanical stirring is generally recommended, with short-duration ultrasonication as an auxiliary method when necessary.
Precautions
Dialdehyde CNC exhibits relatively high reactivity. Its actual performance is influenced by the aldehyde group content, pH, reaction time, and functional groups present in the matrix.
Preliminary Trial Recommendation
It is recommended to evaluate different DACNC loading levels and compare their effects on strength, toughness, degree of crosslinking, and film-forming performance.
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: Which functional groups can the aldehyde groups in dialdehyde CNC react with?
A: The aldehyde groups can undergo further reactions with nucleophilic groups such as amino groups. Therefore, DACNC is commonly evaluated for crosslinking, coupling, and interfacial functionalization in amino-containing systems such as gelatin and chitosan.
Q: Is a higher aldehyde group content always better for dialdehyde CNC?
A: Not necessarily. A higher aldehyde group content can provide more reactive sites, but excessive oxidation may also affect the crystal structure, dispersion stability, and final material properties. The appropriate level should be selected according to the target degree of reaction and application requirements.
Q: Can dialdehyde CNC be used in hydrogels and adhesives?
A: Yes. It can be evaluated in amino-containing polymer hydrogels, reactive adhesives, and functional film systems. The formulation ratio should be designed based on the aldehyde group content, pH, reaction time, and functional groups present in the matrix.
Q: How is dialdehyde CNC typically incorporated into amino-containing polymer systems?
A: First, uniformly pre-disperse DACNC, then add it to the main polymer matrix, such as gelatin or chitosan. For crosslinking applications, a dosage gradient should be designed based on the relative amounts of aldehyde groups and reactive functional groups, rather than relying solely on a fixed mass percentage.