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
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.
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.
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.
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.