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PubMed · 8986353

Radiation effects on polypropylene for sterilization.

G Khang·H B Lee·J B Park
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Abstract

In order to improve the resistance of gamma-radiation sterilization of polypropylene (PP), the formulations of the additives such as antioxidants, crosslinking agent, and trans-stilbene oxide (StO) have been carried out. The irradiated PP and ethylene-propylene copolymer samples with control and additives were characterized by mechanical tester, colorimetry, and Fourier transform infrared spectroscopy with total attenuated reflectance mode (FTIR-ATR). Crosslinking agent and StO formulated PP showed remarkable radiation resistance and minimum discoloration. Also, radiation resistance of ethylene-propylene copolymers with 3% of ethylene contents was better than that of PP homopolymers in the case of no additives. The proposed mechanisms of radiation stabilization with additives are also discussed.

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AntioxidantsCross-Linking ReagentsGamma RaysMaterials TestingPolypropylenesRadiation DosageSpectroscopy, Fourier Transform InfraredSterilizationStilbenesJournal Article

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G Khang, H B Lee, J B Park. 1996. Radiation effects on polypropylene for sterilization.. https://pubmed.ncbi.nlm.nih.gov/8986353/

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