Effect of Gamma Sterilization on Select TPE Materials
It is widely known and published that modern sterilizationtechniques used in the healthcare industry can have a detrimental effect onthermoplastic polymers. In particular, gamma sterilization, which is the mostcommon ionization method, can cause substantial changes to occur in polymericmaterials. Polymer chain scission and cross linking can both occur, alteringthe physical properties and appearance of materials and ultimately affectingthe functionality of a device utilizing these materials.
RTP Company’s TPE (Thermoplastic Elastomer) Division hasinitiated a series of projects to measure the effect different sterilizationmethods have on RTP Company’s standard TPE products used in medical devices.This paper discusses the effect gamma sterilization has on these various TPEcompounds produced by RTP Company for the healthcare industry.