Learning the Types of Membrane Materials
It's important to know the way to choose the right syringe filter for filtration. And the membrane materials used for manufacturing syringe filters often determine your choices. Let's learn the different types of membrane materials for filtering in the lab.
As the most popular membrane used for the laboratory filtration, Cellulose Nitrate (CN) membrane has perfect wetting properties which can give the fastest rate of flowing with aqueous solutions.
Mixed with cellulose triacetate and diacetate, Cellulose Acetate membrane is strong enough in different directions, lateral and longitudinal. This types of the membrane also have a low static charge and a very low aqueous extractability. Its also has excellent solvent resistance to low molecular weight s.
Compared to pure nitrocellulose membrane, Mixed Cellulose Ester membrane is good at providing a more uniform and smoother surface. This membrane can be used to count and analyze particles which contain in liquids.
With the strong and inherently hydrophilic character, Nylon membrane has good compatibility with a wide range of aqueous solutions, especially the s and solvents we use in HPLC process.
Polyethersulfone membrane offers a fast flow rate and better chemical resistance, due to the good hydrophilic and low protein binding.
PTFE membrane can inert to most chemically aggressive solvents, strong acids, and other bases, which provides strong and highly porous.
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