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    Industries

    By enhancing the strength, decreasing the weight, or improving the temperature resistance of your polymers, you can increase the number of markets into which you sell your polymers, like medical, automotive, aerospace, semiconductor, and more.

    Applications for polymer modification

    Formed parts

    Injection-molded, blow-molded, or extruded parts made from a range of polymer materials (including PE, PVC, EVA, EPDM, SBR, natural rubber, and other polymers) may be cross-linked with radiation to improve such properties as their temperature rating, mechanical properties, ESCR and solvent resistance, or other properties. Gaskets, seals, PPTC devices, tubing, and film sheets are examples of parts made from the above materials that may be improved with radiation processing.

    Engineering polymers

    New radiation cross-linkable formulations of polyamide (PA), i.e., nylon, and polybutyleneterephthalate (PBT), are now available for high-temperature polymer modification applications, such as under-hood automotive components and electrical connectors, and high dielectric strength applications, such as components in high-voltage breakers. The base materials are enabled by cross-linking promoters, and this technique can be used with other engineering polymers.

    Bulk polymers

    Irradiation of bulk polymer resins and powders can be used to modify their molecular weights and consequently their properties. For example, irradiation of cellulose derivatives will lower their molecular weight and can be used to tailor viscosity. Irradiation of selected polyethylenes will increase their molecular weights and enhance melt strength properties during forming.

    Pipe and tubing

    Radiation cross-linking of polyethylene water or natural gas supply piping allows increased operating temperature and enhances mechanical properties.

    Heat-shrinkable products

    Two entire industries have benefited from polymer modification using E-Beam technology: heat shrinkable films for packaging and heat-shrinkable connectors for electrical connections. Both are produced by taking advantage of a “memory effect” imparted through the use of E-Beam processing.

    Radiation-based modalities for polymer modification

    • Gamma offers a wide range of polymer compatibility with some limitations due to oxidation effects. Product can be shipped to the final user as soon as it exits the Gamma irradiation facility.
    • Electron Beam (E-Beam) offers a wide range of polymer compatibility with some limitations due to oxidation effects.

    Use radiation-based modalities to achieve feature improvements

    • Strength
    • Elongation
    • Memory
    • Weight
    • Water resistance
    • Chemical resistance
    • Temperature resistance
    • Environmental stress crack resistance (ESCR)
    How can Sterigenics’ expertise help you?
    • Customized solutions to ensure secure, safe, and effective processing
    • A global integrated network of facilities located near your manufacturing or distribution hubs
    • High-quality and consistent processes that exceed safety standards
    • Industry Expert Advisors to assist in solution development, validation, and testing
    • Expedited product processing services
    • One partner for all your sterilization modality requirements and access to Sotera Health’s leading portfolio of best-in-class products and services from sister companies Nelson Labs and Nordion

    Call Us for More Information 
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    Contact Us To Get Your Project Started