Kynar^® PVDF Water Filtration Membranes

High Performance Kynar^® PVDF for High Performance Membrances

• Easy processing (both NIPS and TIPS) of hollow fibers


• Consistent macro-void free structure


• Tremendous strength, ductility, resilience


• High gel strength, good spinning stability


• Uniform pore size and high permeability/throughput


• Suitable pH range: 1-13


• Radiation resistance: e-beam, gamma radiation, steam, chemical methods

Extreme Chemical Resistance & Toughness

• Tremendous resistance to harsh halogenated chemicals (Chlorine, NaOCl bleach, Chlorine dioxide, Chloramines) and acids, peroxides, aromatics, ozone and other oxidants

• Improved toughness and ductility

• Less cracking/breaking during turbulent water flow (both outside-in and inside-out/backflush flow conditions) and air-scouring operations

• The result is a membrane that is more durable, requires less maintenance (less down-time) and is tougher than PSU and PESU alternatives.

Let us save you years of R&D. Allow us to help you optimize your fibers :

• Model formulation

• Membrane spinning conditions

• On-site lab trials, training

• Field technical support

• Characterization - physical & chemical

• Regional support across the globe

This graph demonstrates the truly exceptional chlorine and bromine resistance of Kynar® PVDF grades. As more and more pressure is placed on municipal and industrial treatment facilities to "do more, with less", there is a greater need for extreme materials that can resist extreme conditions.

AN EXTREME WORLD
NEEDS EXTREME MATERIALS

High Throughput After Repeated Cleaning Cycles

This graph demonstrates the retention of high throughput (flux) of Kynar^® resin after repeated washing/backflush cycles compared to two other commercial PVDF membranes. 

View the Kynar® Product Family Page for More Grade Information

Select the Right Grade of Kynar® PVDF for NIPS or TIPS

Depending on the filtration process and specific formulation space, Arkema can recommend several grades.

Each of these grades is completely soluble at 5-20% solids in each of the following solvents at ambient temperature:

• Dimethyl Acetamide

• N-Methyl-2-Pyrrolidone (NMP)

• Dimethyl Formamide

• Dimethyl Sulfoxide

• Triethyl Phosphate

• Tetramethyl Urea

A Viscosity to Match Your Process

The Challenge for Global Water Supply

Globally, there is an enormous demand for superior / higher efficiency water purification processes. Almost a billion people on the planet do not have easy access to clean drinking water or basic hygiene. The continued drive toward urbanization puts more and more pressure on our ability to make dirty water clean. Simultaneously, agricultural water is being recycled more and more without adequate retreatment – a vicious cycle that puts even more pressure on the filtration challenge.

Municipal treatment facilities are forced to do more – often, without the ability to expand their operation. Consequently, they must achieve higher throughput rates – with less down-time and must use harsher and stronger cleaning agents to rehabilitate their fouled membranes.

This extreme challenge makes Kynar® PVDF an obvious choice. For decades, Kynar® PVDF has proven itself as a world leading technology in chemical resistance and durability – while being easy to process and install. Engineers all over the world know that Kynar® is a trademark for reliability and peace of mind.

Speak to the Right Person

We understand your challenges and we’re here to help. No matter where on the planet you are, we’ve got resources to help you. Our global Membrane Innovation Center is located in King of Prussia, USA – and we have regional relay technical facilities in France, China, Korea and Japan. Let us help you today with:

• Model formulation
• Process optimization
• Membrane spinning conditions
• Field technical support
• Physical characterization
• Co-development
• On-site lab trials and training

Contact Us.