15/6/2001 · During TIPS, the latent solvent (occasionally referred to as the diluent) plays an important role in membrane formation. At elevated temperatures, the polymer can be dissolved to form a homogeneous solution, while with decreasing temperature the polymer’s solubility decreases.
Although PTFE is a difficult polymer to work with and has little compatibility with other polymers, PVA from previous studies has worked satisfactorily with PTFE electrospun membranes [40,41,42,43,44].
NWF series cartridges filter media is a hydrophobic PTFE membrane, applicable to the pre-filtering and sterilization of gas and solvent. PTFE membrane has the strong hydrophobicity, its water erosion resistance capacity is 3.75 times stronger than the ordinary
Nylon filter membrane, 47 mm diameter, 0.20 µm pore size, 100/pk 5191-4341 Description Part Number PTFE filter membrane, 47 mm diameter, 0.45 µm pore size, 100/pk 5191-4336 PTFE filter membrane, 47 mm diameter, 0.20 µm pore size, 100/pk 5191-4339
Choose a filter or membrane based on: 1) Chemical compatibility of the membrane and housing with your sample matrix. 2) Size and amount of particulates in the sample. 3) Potential interactions (binding) between the membrane and sample components. 4) Special considerations such as requirement for prefilter or inorganic ion certification.
PTFE Unlaminated Membrane Filters, Hydrophobic, 3 Micron, 47mm, 100/Pk Product code T300A047A Q. What is the difference between nominal and absolute pore size ratings? Nominal pore size ratings are provided as a general indication of filter retention.
This general liquid medicine filter is usually used with infusion apparatus, anesthesia set, inject syringe. They ensure the increased level of patient safety and protection required in liquid medicine filtration. Membrane Solutions affords all kinds of general liquid medicine filters including photophobic precision liquid medicine filters.
20/10/2012 · Hydrophilic PTFE-reinforced Nafion membranes were prepared by the following procedure. 12 g of Nafion resin (Ion Power, 5 wt% EW Nafion in a solvent mixture) was dried at 60 C for 12 hours to obtain 0.6 g of Nafion. 12 g of co-solvents (N-Methyl-2
PTFE membrane filters have an excellent chemical compatibility (pH 1 to 14), so that they are also used for the filtration of solvents and acids, to which other filter types are not resistant. Moreover they can be used to filter aqueous solutions as well, but because of their hydrophobic characteristics, they must be pre-wetted with ethanol or methanol before the filtration of aqueous media
The membrane or housing is basically unstable and is not recommended for use. - = Insufficient Data Information is not available. Trial testing is recommended. *Chemical compatibility refers to the base membrane. The effect of various chemicals on the surface
addition, solvent-membrane compatibility requires additional consideration of filtration-specific factors. None of these published compatibility guides, for example, monitors the solvent’s ability to wet a membrane or increase extractables. 4. This table does not
membranes require dissolving the polymer in a solvent. Because Solef® PVDF, Udel® PSU, Veradel® PESU and Radel® PPSU are soluble in conventional solvents, they can be solvent cast by the Diffusion Induced Phase Separation (DIPS) process. Thisto as
The main application of these membrane filters ist the filtration of air, gases and chemicals. PTFE membrane filters have an excellent chemical compatibility (pH 1 to 14), so that they are also used for the filtration of solvents and acids, to which other filter types are
