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Jeun J.-P.,Radiation Research Division for Industry and Environment | Seo D.-K.,Radiation Research Division for Industry and Environment | Kim H.-B.,Radiation Research Division for Industry and Environment | Kang P.-H.,Radiation Research Division for Industry and Environment
AIP Conference Proceedings | Year: 2010

Polyacrylonitrile/titania (PAN/TiO2) nanofibrous mats were prepared by an electrospinning method and silver nanoparticles were deposited by electron beam (e-beam) irradiation of silver ions in aqueous solutions. The morphology of the electrospun fibers was characterized by SEM analysis. The deposition of silver particles was not of a uniform coverage on the PAN/TiO 2 surface, but of a heterogeneous growth of the silver particles on the PAN/TiO2 surface. The photocatalytic efficiency of the composites against methylene blue dye in an aqueous solution improved and the actibacterial activity against E. coli and S. aureus was found to increase with the silver nanoparticles being induced. © 2010 American Institute of Physics. Source


Jeun J.-P.,Radiation Research Division for Industry and Environment | Shin B.-S.,Radiation Research Division for Industry and Environment | Kim H.-B.,Radiation Research Division for Industry and Environment | Nho Y.-C.,Radiation Research Division for Industry and Environment | Kang P.-H.,Radiation Research Division for Industry and Environment
AIP Conference Proceedings | Year: 2010

In the present study, the effects of electron beam irradiation of polyamide 12 (PA12) with fiberglass reinforcement on the thermal and wear properties were investigated. Electron beam irradiation of PA 12 was carried out over a range of irradiation doses (100-600 kGy) in air. The gel formation in the presence of a curing agent was dependent on the radiation doses. The thermal properties of irradiated PA 12 were studied in the temperature region 50-250 oC to observe the changes in the melting point with radiation dose. The dimensional stability was significantly increased by electron beam irradiation and the related crosslinking of the PA 12. © 2010 American Institute of Physics. Source

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