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Characteristics of X-Ray Attenuation in Electrospun Bismuth Oxide/Poly-lactic Acid Nanofibre Mats

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Polymer Composites and Nanocomposites for X-Rays Shielding

Part of the book series: Composites Science and Technology ((CST))

Abstract

The characteristics of X-ray transmission in electrospun nano(n)- and micro(m)-Bi2O3/poly lactic acid (PLA) nanofibre mats with different Bi2O3 loadings were compared using mammography (22–49 kV) and X-ray absorption spectroscopy (XAS) (7–20 keV). Results indicate that X-ray transmissions by electrospun m-Bi2O3/PLA nanofibre mats are distinctly higher than those of n-Bi2O3/PLA nanofibre mats at all energies investigated. In addition, with increasing the filler loading (n-Bi2O3 or m-Bi2O3), the porosity of electrospun Bi2O3/PLA nanofibre mats decreased thus decreasing the X-ray transmission except for the nanofibre mat containing 38 wt% of Bi2O3 (the highest loading in the present study). The latter showed higher porosity with some beads formed thus resulting in a sudden increase in X-ray transmission.

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Acknowledgements

The collection of X-ray absorption spectroscopy (XAS) data was funded by the Australian Synchrotron (AS123/XAS5341). We thank our colleagues Dr. C. Ng and A/Prof. Z. Sun for assistance with XAS data collection. Also, we would like to thank Carolyn Madeley of Breast Assessment Centre, Royal Perth Hospital, Western Australia for giving us the opportunity to use the mammography unit.

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Authors and Affiliations

  1. Department of Applied Physics, Curtin University, Perth, WA, Australia

    It Meng Low

  2. School of Physics, Universiti Sains Malaysia, Gelugor, Pulau Pinang, Malaysia

    Nurul Zahirah Noor Azman

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  1. It Meng Low
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  2. Nurul Zahirah Noor Azman
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Correspondence to It Meng Low .

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Low, I.M., Noor Azman, N.Z. (2020). Characteristics of X-Ray Attenuation in Electrospun Bismuth Oxide/Poly-lactic Acid Nanofibre Mats. In: Polymer Composites and Nanocomposites for X-Rays Shielding. Composites Science and Technology . Springer, Singapore. https://doi.org/10.1007/978-981-13-9810-0_9

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