SOLEF® PVDF as membrane Resin

a) In general

• More than 10 years of successful use in the membrane industry.
• Extremely pure polymer which contains no stabilizers, plasticizers, lubricants, or flame-retardant additives.
• FDA and other agency approvals (like NSF 61,…).
• Large choice of grades (homopolymers, copolymers, new copolymers…).
• Research and Development team at your service to answer your questions, and, if needed, develop new grades to answer your specific needs.
• Available in powder or pellet forms.

b) Chemical Resistance

• Stable to wide pH levels (from 1 to 11).
• Excellent resistance to oxidizing agents such as aqueous chlorine, and ozone under certain conditions.
• Fairly good chemical resistance allowing feeds containing various contaminants.
• Soluble in industrial solvents that are suitable for membrane manufacturing.
• Good hydrolytic stability allowing long term use of the membranes.
• Excellent oxidative stability allowing long term use of the membranes.

c) Mechanical properties

• Chemical structure provides very good fiber robustness.

d) Thermal properties

• High temperature capabilities (continuous use temperature up to 150°C) and excellent ageing resistance.

e) Membrane Manufacturing

• Allows reproducible formation of good quality membranes with sufficient flux and fiber strength.
• Forms membranes with different pore sizes, with proper choice of pore formers, viscosity and gelation conditions.
• Soluble in several industrial solvents that are suitable for membrane manufacturing. Good stability of the solutions.
• Wide range of molecular weights available allows to reach the right solution viscosity for the different manufacturing processes.
• Powder easy to handle in a safely way as it is not volatile.