Overview
A continuous membrane material obtained by dehydration and drying of a wet BC/BNC nanofibrous network, offering improved convenience for storage and transportation. The dried membrane can be further processed through composite formation, coating, and surface modification.
General information
| Product Name | Bacterial Cellulose Dry Membrane |
|---|---|
| Abbreviation | BC Dry Membrane / BNC Dry Film |
| Surface Functional Groups | –OH |
| Product Form | Dry Membrane |
| Raw Material Source | Microbial Fermentation-Derived |
| Surface Charge | Typically Nonionic / Weakly Anionic |
Specifications
| Appearance | White Dry Membrane |
|---|---|
| Diameter | 10-100nm |
| Length | ≥1μm |
| Crystallinity | ≥70% |
| pH | 6-8 |
Product details
Product Appearance
Product Characterization
Recommended Applications
Functional Membranes；Composite Membranes；Packaging Materials；Coatings；Sensors；Electronic Materials；Biodegradable Materials Research
Application Guidelines
Recommended Dosage
Dosage is typically defined based on membrane thickness, basis weight, and the number of composite layers, rather than conventional weight-based percentages.
Application Method
The membrane can be used directly as a standalone film or further processed through wetting, coating, lamination, composite formation, or surface functionalization.
Pre-Treatment
Depending on the intended application, the membrane may be pre-wetted or surface-treated before being combined with resins, polymers, or other functional materials.
Precautions
Drying of BC membranes may alter the nanofibrous network structure and rehydration performance. The appropriate drying state and post-treatment process should therefore be selected according to the intended end use.
Small-Scale Trial Recommendations
It is recommended to focus on evaluating membrane thickness, tensile properties, optical transparency, water absorption/rehydration, barrier properties, and interfacial performance in composite systems.
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: Can a bacterial cellulose dry membrane fully recover its original wet-state network after rehydration?
A: Not necessarily. Drying can induce hydrogen-bond rearrangement and network shrinkage between nanofibers. As a result, the thickness, flexibility, pore structure, and water-absorption properties after rehydration may not fully recover to their original wet-state characteristics.
Q: Why can nanocellulose membranes combine relatively high optical transparency with good mechanical strength?
A: Nanoscale fibers can help reduce visible-light scattering, while extensive interfiber hydrogen bonding and the formation of a dense nanofibrous network contribute to mechanical strength. The actual performance depends on factors such as membrane thickness, porosity, and drying structure.
Q: Can BC dry membranes be used for packaging, coatings, or composite membranes?
A: Yes. BC dry membranes can be used as base membranes for impregnation, coating, lamination, and surface functionalization research. Particular attention should be paid to interfacial adhesion with coatings or resins and water resistance.
Q: Which parameters should be considered when purchasing and applying BC dry membranes?
A: Key parameters include membrane thickness, basis weight, tensile properties, optical transmittance, water absorption/rehydration, surface morphology, and barrier properties. Additional performance tests should be selected according to the specific intended application.