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Glossary » Materials » Polymers » Ionomer » Glass and Rubber Modified » Molding and Extrusion

Glass and Rubber Modified Molding and Extrusion Ionomer is a subcategory of Ionomer. The additative is added during the manufacturing process. Its flexural modulus ranges from 8 to 700 MPa. Its tensile strength ranges from 3500 to 7900 MPa at break. Its Izod Impact strength ranges from 1.8 to 2.5 J/cm. Its elongation at break ranges from 5 to 200 %. Its hardness ranges from 43 to 70 Shore D. Its specific gravity ranges from 0.95 to 1.2. Its coefficient of thermal expansion ranges from 50 to 100 x 10^-6/°C. Its melting temperature ranges from 81 to 220 °C. Its molding pressure ranges from 2 to 20 MPa.

Ionomer is a thermoplastic polymer. Common trade names include Aclyn, Himiran, Coathylene, Surlyn, and Escor. It has high impact strength (low temperatures), puncture and abrasion resistance, high melt elasticity, and good thermoforming properties. It also has low sealing temperatures and high sealing seam strength. It is resistant to grease, oil, and solvents. Applications of Ionomer range from tough, scratch-resistant golf balls and bowling pin covers to footwear components, glass coatings, abrasion resistant surfaces and buoys. It can be used to replace glass or crystal, and it can also be used as packaging films and sealants.