Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)
- Volume 1995 Issue 11
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- Pages.134-137
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- 1995
Radiation Effects on Polypropylene for Biomedical Application
Polypropylene의 방사선멸균에있어 제 첨가제들에 의한 영향
- Khang, Gil-Son (Biomaterials Lab., KRICT) ;
- Lee, Hai-Bang (Biomaterials Lab., KRICT)
- Published : 1995.11.17
Abstract
Studies on the formulations of the additives such as antioxidants, crosslinking agent, and trans-stilbeneoxide (StO) with polypropylene (PP) have been carried out to improve the resistance of gamma radiation sterilization. The irradiated PP and ethylene-propylene copolymers 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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