Introduction

Polyethersulfone (PES) membranes are widely recognized for their excellent thermal stability, low protein binding, and chemical resistance. The asymmetric PES membrane, designed for liquid filtration, features a gradated pore structure that enhances flow rates while maintaining high filtration precision.

Material Structure Analysis

• Asymmetric design — larger pores on the upstream side transition to smaller pores downstream.
• Microporous structure formed via phase inversion manufacturing for optimized fluid dynamics.
• Hydrophilic surface ensures easy wetting and rapid start-up in aqueous filtration processes.

Uses and Advantages

1. Pre-filtration in multistage liquid filtration systems.
2. High flow rate compared to symmetric structures, reducing processing time.
3. Excellent particle retention while minimizing membrane fouling.
4. Low protein binding to preserve biological activity.

Application Industries

• Pharmaceuticals: filtration of oral liquids, injectables, and culture media.
• Food & Beverage: clarification of drinks, dairy product filtration.
• Biotechnology: sterile filtration of buffers and reagents.
• Water treatment: point-of-use purification, lab grade water.

Key Features

1. High mechanical strength — withstands repeated sterilization cycles.
2. Consistent pore gradient — ensures reliable contaminant removal.
3. Low extractables — maintains purity in critical liquid applications.
4. Excellent flow performance — reduces energy and time costs.

Conclusion

Asymmetric PES membranes combine high throughput with precise particle retention, making them ideal for liquid filtration in pharmaceutical, food, and biotechnology industries. Their hydrophilic surface ensures rapid start-up, and the graded pore design optimizes both speed and efficiency.

Purchase Suggestion

Contact our team for high-quality asymmetric PES membranes tailored to your specific liquid filtration requirements.