Technical Description
This invention details a chemical method for converting industrial waste cotton microdust into functional cellulose membranes via sequential low-concentration alkali-acid soaking and zinc chloride solubilization. By utilizing spin-coating with a sodium chloride mediator, the process drives the simultaneous structural cross-linking of cellulose chains and the automatic separation of UV-filtering lignin.
Problems Addressed
- Entangled Lignin Impurities
- Air, Water and Noise Pollution
- Prohibitive Cost of Ionic Solvents
- Economic And Environmental Concern
- Inefficient Aqueous Dispersion (Clumping)
- Massive Spinning Mill Waste Accumulation
Tech Features
- Sequential Low-Concentration Chemical Conditioning
- 22% Sodium Chloride active chemical mediator
- Fluffy-to-Powder Morphological Phase Transition
- Cost-effective zinc chloride solubilization
- Mediated Spin-Coating Layering
- Shear-Induced Ion Cross-Linking
- Cellulose-Based Membrane Solidification
- UV-Filtering Cellulose-Lignin Synthesis
Target Audience
- Specialized Chemical & Filter Suppliers
- Textile & Cotton Spinning Mill Operators
- Biomaterial & Membrane Manufacturing Plants
Tech ID: P19-2097 TRL 4 Patent Status: Granted Available For Exclusive and Non-exclusive License
