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Ensinger PEI
Dow Surlyn® 8320 Ionomer Resin, Sodium
Categories: Polymer; Thermoplastic; Ionomer; Ionomer, Molded

Material Notes: Surlyn® 8320 thermoplastic resin is an advanced ethylene/methacrylic acid (E/MAA) copolymer, in which the MAA acid groups have been partially neutralized with sodium ions. This very low modulus sodium grade has low hardness and very low stiffness. Increased flexibility is achieved by incorporating a third co-monomer into the resin during polymerization. It is used alone or in combination with other ionomer resins or other polymers as a way to tailor flexibility for specific applications. In golf ball covers, for example, it provides a softer feel and imparts greater spin when the ball is in contact with the club face. Surlyn® 8320 is normally processed in a polymer blend by injection molding.

Data provided by the manufacturer.

This former DuPont product line is now a Dow product line.

Key Words: Ethylene/Methacrylic Acid (E/MAA) Copolymer
Vendors:
Available Properties
  • Density, ASTM D792
  • Melt Flow, ASTM D1238, condition E
  • Hardness, Shore D, ASTM D2240
  • Tensile Strength, Ultimate, ASTM D638
  • Tensile Strength, Yield, 50 mm/min cross speed, ASTM D638
  • Elongation at Break, ASTM D638
  • Flexural Modulus, ASTM D790
  • Izod Impact, Notched, ASTM D256
  • Tensile Impact Strength, ASTM D1822S
  • Abrasion, NBS Index; ASTM D1630
  • Melting Point, DSC
  • Vicat Softening Point, Rate B, ASTM D1525-70
  
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Manufacturer Notes:
Dow Chemical (former DuPont)

Category Notes
Plastic

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