MSK-AFA-C300-CHGD Roll-to-Roll Membrane Coating System with Phase-Inversion Water Baths for Hydrophilic Surface Treatment and Membrane Fabrication
The MSK-AFA-C300-CHGD is engineered for precise roll-to-roll coating of membranes, particularly suited for applications such as hydrogen electrolysis and seawater desalination. This system facilitates continuous substrate processing, enabling the transformation of raw materials into functional membranes with hydrophilic surfaces and hydrophobic coatings through a controlled phase-inversion process.
The substrate unwinds from a roller and passes through a blade film applicator or optional slot-die coater to achieve a hydrophilic surface. Subsequently, it undergoes dip coating in multiple temperature-controlled water baths containing hydrophobic repellents at room temperature. The coated membrane is then dried in a convection or infrared heated chamber with a maximum temperature of 150°C before entering a washing bath at ambient conditions to complete the fabrication cycle.
Key Features
- Roll-to-roll coating with adjustable substrate width up to 280 mm and coating width from 50 to 260 mm (expandable to 1000 mm on request).
- Phase-inversion process utilizing up to four temperature-controlled water baths (up to 90°C) for dip coating with hydrophobic repellents.
- Blade film applicator standard; slot-die coating available as an option for precise film application.
- Drying chamber capable of convection or infrared heating up to 150°C for membrane curing.
- Integrated tension and alignment control ensures consistent substrate handling and coating uniformity.
- Electrostatic dust removal and air-drying functions available to maintain membrane cleanliness.
- Adjustable coating speed up to 0.3 meters per minute for process flexibility.
Technical Specifications
| Parameter | Specification |
|---|---|
| Power Supply | 208 – 240 VAC, 50/60 Hz, Single Phase |
| Power Consumption | 6 kW |
| Circuit Breaker Requirement | ≥ 30 A |
| Coating Head Type | Standard blade film applicator; optional slot-die coating |
| Coating Width | Adjustable 50 – 260 mm (up to 1000 mm available on request) |
| Maximum Substrate Width | 280 mm |
| Water Baths | Up to 4 baths, temperature controllable up to 90°C |
| Coating Speed | Maximum 0.3 m/min, adjustable |
| Drying Chamber Temperature | Up to 150°C (convection or infrared heating) |
| Tension and Alignment Control | Built-in for consistent substrate handling |
| Electrostatic Dust Removal | Available with air-drying function |
Typical Applications
This system is ideal for fabricating membranes used in hydrogen electrolysis cells and seawater desalination membranes, where precise control of hydrophilic and hydrophobic surface properties is critical. It supports research and production environments requiring continuous membrane coating with phase-inversion techniques.
Configuration & Operating Notes
The system includes a standard blade film applicator; slot-die coating is available as an optional upgrade for enhanced coating precision. Operators should ensure proper tension and alignment settings to maintain uniform coating quality. The drying chamber temperature should not exceed 150°C to avoid substrate damage. Electrostatic dust removal and air-drying functions help maintain membrane cleanliness during processing. Multiple water baths can be configured based on process requirements, with temperature control up to 90°C for phase inversion.
