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http://dx.doi.org/10.7742/jksr.2022.16.3.233

Evaluation of 3D Printing Filaments for Radiation Shielding using High Density Polyethylene and Bismuth  

Park, Ki-Seok (Department of Radiological Science, Busan Haeundae PAIK Hospital)
Kim, Dong-Hyun (Department of Radiological Science, Catholic University of Pusan)
Publication Information
Journal of the Korean Society of Radiology / v.16, no.3, 2022 , pp. 233-240 More about this Journal
Abstract
Research on the presence or absence of radiation shielding for FDM-type filaments has recently begun to be studied, but filaments with shielding capabilities are not sold in Korea, and not studies yet. Therefore, in this research, we will use HDPE (High Density Polyethylene) as a base material, select bismuth as a reinforcing material to manufacture a composite filament, evaluate the shielding ability, and provide basic data for the development of a radiation shielding composite material using 3D printing.A filament is produced by mixing Bismuth with an effective atomic number 83 with HDPE of PE series and adjusting the content of Bismuth to 20% wt, 30% wt, 40% wt. Compounded filaments were evaluated for their physical properties and shielding capabilities by ASTM evaluation methods. As the bismuth content increases, the density, weight, and tensile strength increase, and the shielding capacity is confirmed to be excellent. As a result of the radiation shielding capacity evaluation, it was confirmed that HDPE (80%) + Bi (20%) showed a shielding rate of 82% at 60 kV and a shielding rate of up to 94% or more at 40% bismuth content. In this study, we confirmed that it was possible to produce a radiation shield that is lighter than the metal particle-containing filaments. Furthermore, that have been shield radiation by using HDPE + Bi filaments, and radiation in the medical and radiation industries. The possibility of using it as a shielding complex was confirmed.
Keywords
3D Printing; Fused Deposition Modeling; Radiation Shielding; HDPE; Bismuth;
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Times Cited By KSCI : 9  (Citation Analysis)
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