PPSU Properties

PPSU is the acronym for Polyphenylsulfone. Also known as PPSF, PPSU is part of Sulfone polymers, which are high performance polymer exhibiting very attractive properties such as high temperature performance, good chemical resistance, outstanding toughness, excellent colorability and very good dimensional stability. As the other sulfone polymers, PPSU is an amorphous polymer and displays therefore very good creep resistance, isotropic thermal and mechanical properties (if non reinforced) and transparency properties. PPSU is used in various applications including plumbing, food services, medical, aerospace, wire & cable, etc.

DYCO use Radel grade PPSU manufacture the industrial leading brand Solvay, most of Radel® PPSU compounds comply with U.S. FDA and European Union (EU 10/2011 and 1183/2012) regulations for use as components of articles intended for repeat use in contact with all types of foods.

DYCO use Radel® PPSU displays a very good chemical resistance to many chemicals including: aqueous systems, caustics, inorganic acids, aliphatic hydrocarbons, detergents and soaps and certain alcohols.

Radel®R-5100 is an opaque, general purpose polyphenylsulfone (PPSU) for injection molding, that offers exceptional hydrolytic stability, and toughness superior to other commercially-available, high-temperature engineering resins. This resin also offers a high deflection temperature and outstanding resistance to environmental stress cracking. Radel®polymers are inherently flame retardant, provide excellent thermal stability and possess good electrical properties.

  • Acid Resistant
  • Autoclave Sterilizable
  • Base Resistant
  • Biocompatible
  • Chemical Resistant
  • E-beam Sterilizable
  • Ethylene Oxide Sterilizable
  • Flame Retardant
  • General Purpose
  • Good Sterilizability
  • Good Thermal Stability
  • Heat Sterilizable
  • High ESCR (Stress Crack Resist.)
  • High Heat Resistance
  • Hydrolytically Stable
  • Radiation (Gamma) Resistant
  • Radiation Sterilizable
  • Steam Resistant
  • Steam Sterilizable
  • Ultra High Toughness

Physical Typical Value UnitTest Method
Density/ Specific Gravity            1.30AS1M0792
Melt Mass-Flow Rate (MFR)  14 to 20 g/10 minAS1MD1238
Molding Shrinkage – Flow          0.70%AS1MD955
Water Absorption (24 hr)          0.37%AS1M0570

MechanicalTypical Value UnitTest Method
Tensile Modulus       2340 MPaAS1MD638
Tensile Strength
Yield       69.7  MPaASTMD639
Break       69.6  MPa
Tensile Elongation
Yield           7.20%AS1MD638
Break             60%
Flexural Modulus         2410 MPaASTMD790
Flexural Strength (Yield)         91.0  MPaASTMD790
Compressive Modulus        1730  MPaASTMD695
Compressive Strength        98.9  MPaAS1MD695
Shear Strength         62.7 MPaAS1MD732
Poisson’s Ratio             0.42ASTM E132

ThermalTypical Value UnitTest Method
Deflection Temperature Under Load
0.45 MPa, Unannealed214 °cAS1MD648
1.8 MPa, Unanneaeld207°c
Glass Transition Temperature220°cASTM E1356
CLTE – Flow5.6E-5 cm/cm/°cAS1MD696
Thermal Conductivity0.35 W/m/KASTMC177