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Ensinger SPI
Syensqo (Solvay Specialty Polymers) Udel® P-1700 LCD PSU, Low viscosity for MF and UF membranes and microporous RO and NF substrates
Categories: Polymer; Thermoplastic; Polysulfone (PSU)

Material Notes: Udel® P-1700 LCD polysulfone is especially well suited for the fabrication of porous membranes for filtration applications. The membranes are usually in the form of hollow fibers, but tube, plate or spiral wound forms are also used. The membranes are used in a variety of applications, such as potable water treatment, waste water treatment, blood processing, pharmaceutical purification, gas separation, dairy product processing and for processing a variety of food products.

This resin offers the membrane producer good solubility in commercially available dipolar aprotic solvents, such as dimethylacetamide (DMAC), dimethylformamide, (DMF) and N-methyl pyrrolidone (NMP), which are completely miscible in water, very good control of pore size and pore size distribution, high membrane strength and good film-forming properties.

Typical grades of polysulfone contain a cyclic dimer that can precipitate from solution, plugging the process filters and limiting the life of the dope solutions. Udel® P-1700 NT LCD is specially manufactured to have a lower amount of cyclic dimer. It also has a higher number average molecular weight (Mn) for a given weight average molecular weight (Mw) leading to higher fiber strength, which means fewer fiber breakages, fewer surface defects and fewer rejects.

The resultant membranes have excellent hydrolytic stability and are compatible with pHs ranging from 2 to 13. They tolerate a variety of cleaning methods, including hydrochloric acid or sodium hydroxide. The resin has a Tg of 185°C indicating high thermal resistance.

- Transparent: Udel P-1700 NT LCD

Markets/Uses: Membranes / Membranes / Biomedical; Membranes / Membranes / Bioprocessing; Membranes / Membranes / Food and Beverage Processing; Membranes / Membranes / Gas Separation; Membranes / Membranes / Hemodialysis; Membranes / Membranes / Industrial Process Separations; Membranes / Membranes / RO/NF Composite Membrane Support Layer; Membranes / Membranes / UF/MF Low Pressure Water Filtration; Membranes / Membranes / Waste Treatment; Membranes / Membranes / Water Purification

Applications: Membranes

Features: Acid Resistant; Alcohol Resistant; Alkali Resistant; Chemical Resistant; Good Toughness; High Heat Resistance; Hydrocarbon Resistant; Hydrolytically Stable

Information provided by Solvay Specialty Polymers.

Available Properties
  • Density, ASTM D792
  • Water Absorption, ASTM D570
  • Linear Mold Shrinkage, Flow, ASTM D955
  • Melt Flow, ASTM D1238
  • Tensile Strength, ASTM D638
  • Elongation at Break, ASTM D638
  • Tensile Modulus, ASTM D638
  • Flexural Strength, ASTM D790
  • Flexural Modulus, ASTM D790
  • Izod Impact, Notched, ASTM D256
  • Tensile Impact Strength, ASTM D1822
  • Volume Resistivity, ASTM D257
  • Dielectric Constant, ASTM D150
  • Dielectric Constant, ASTM D150
  • Dielectric Constant, ASTM D150
  • Dielectric Strength, ASTM D149
  • Dissipation Factor, ASTM D150
  • Dissipation Factor, ASTM D150
  • Dissipation Factor, ASTM D150
  • CTE, linear, Parallel to Flow, ASTM D696
  • Deflection Temperature at 1.8 MPa (264 psi), ASTM D648, Unannealed
Property Data

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Manufacturer Notes:
Solvay Specialty Polymers (includes former Solexis)

Category Notes

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