What is polyethersulfone used for?
Polyethersulfone (PES), as shown in Figure 1, is considered one of the well-known polymeric material to be used to make ultrafiltration (UF), microfiltration (MF), and gas separation membranes since it provides unique properties such as outstanding thermal, mechanical, hydrolytic strength in both hot and wet …
How do you prepare PES membrane?
Membrane preparation. Membranes were prepared by phase inversion induced by immersion precipitation technique. PES was dissolved in DMAc with magnetic stirring at room temperature, and NPhthCs was added to the homogeneous solution and stirred overnight.
Is polyethersulfone hydrophobic?
Polyethersulfone membrane are generally hydrophilic.
Is polyethersulfone hydrophilic?
PES is an inherently hydrophilic membrane that wets out quickly and completely resulting in fast filtration with superior flow rates and high throughputs. PES membrane is also extremely low protein binding minimizing the likelihood of target analyte binding.
What is the difference between polyethersulfone and polysulfone?
is that polyethersulfone is (chemistry) polyethersulfone describes a family of thermoplastic polymers that are known for their toughness and stability at high temperatures they contain the subunit aryl-so2-aryl, the defining feature of which is the sulfone group while polysulfone is (chemistry) any of a several classes …
How do you dry polyethersulfone?
The maximum recommended drying temperature is 163 °C (325 °F) for Udel® polysulfone (PSU) and 177 °C (350 °F) for Radel® polyphenylsulfone (PPSU), Veradel® polyethersulfone (PESU), and Acudel® modified PPSU. Sulfone polymers must be dried for optimum molding results.
What is nylon filter?
Product Description. MS® Nylon membrane filter is a supported, naturally hydrophilic membrane designed to wet out evenly and retain its superior strength during use in general filtration or medical assays, eliminating the need for wetting agents that could be extracted when filtering aqueous solutions.
What is a hydrophobic filter?
Hydrophobic filters are commonly used in gas vent functions within medical devices. These filters allow you to vent out air or other gases while retaining the water based fluids that will be used to aid in the treatment of patients.
Is polyethersulfone biodegradable?
This material used for the first generation of Polymem hollow fibers, is resistant to chemicals (chlorine at high pH, soda, acids and other common washing agents), non-biodegradable and has excellent mechanical and thermal resistance.
What is polyethersulfone material?
Polyethersulfone (PES) is a transparent, high-performance polymer known for its dimensional stability at high temperatures in both air and water. At room temperature, PES is strong, rigid and ductile with excellent creep resistance.
What is PES membrane filter?
PES is an inherently hydrophilic membrane that wets out quickly and completely resulting in fast filtration with superior flow rates and high throughputs. Polyethersulfone membrane is compatible with EtO, gamma irradiation, and autoclave methods of sterilization.
Are nylon filters hydrophilic?
Nylon membrane filter options Nylon membrane filters are hydrophilic, flexible, tear-resistant, and autoclavable. They are resistant to a range of organic solvents and suitable for use with high pH samples.
What is the pore structure of polyethersulfone membrane filters?
The polyethersulfone (PES) membrane filters have asymmetrical pore structure. The pore structure varies within the thickness of the membrane such that the largest openings occur on one side and the smallest openings occur on the opposite side.
What are PES membrane filters?
These hydrophilic, low protein binding, PES membrane filters are ideal for tissue culture media sterilization, life science and microbiology fluid applications, clinical, and general filtration.
What is the pore structure of the sterlitech membrane filters?
The polyethersulfone (PES) membranes used in the Sterlitech membrane filters have asymmetric pore structure. The pore structure varies within the thickness of the membrane such that the largest openings occur on one side and the smallest openings occur on the opposite side.
What is a hydrophilic membrane filter?
Hydrophilic membrane filters are typically used with water and aqueous solutions. They can also be used with compatible non-aqueous fluids. Hydrophilic membrane filters are typically not used for air, gas or vent filtration since the filters would block flow if inadvertently wetted, by condensation for example.