Academic Journal
Fabrication, Structural Characterization, and Photon Attenuation Efficiency Investigation of Polymer-Based Composites
| العنوان: | Fabrication, Structural Characterization, and Photon Attenuation Efficiency Investigation of Polymer-Based Composites |
|---|---|
| المؤلفون: | Sitah F. Alanazi, Norah M. Alotaibi, Mohammed Alsuhybani, Nassar Alnassar, Fahad I. Almasoud, Mansour Almurayshid |
| المصدر: | Polymers, Vol 16, Iss 9, p 1212 (2024) |
| بيانات النشر: | MDPI AG |
| سنة النشر: | 2024 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | polymers, HDPE, X-ray shielding, silicon nanoparticles, radiation protection, Organic chemistry, QD241-441 |
| الوصف: | Experiments have assessed various polymer composites for radiation shielding in diverse applications. These composites are lighter and non-toxic when compared to lead (Pb), making them particularly effective in diagnostic imaging for shielding against low-energy photons. This study demonstrates the fabrication of four composites by combining a base material, specifically a high-density polyethylene (HDPE) polymer, with 10% and 20% silicon (Si) and silicon carbide (SiC), respectively. Additionally, 5% molybdenum (Mo) was incorporated into the composites as a heavy metal element. The composites obtained were fabricated into 20 disks with a uniform thickness of 2 mm each. Discs were exposed to radiation from a low-energy X-ray source (32.5–64.5 keV). The chemical and physical properties of composites were assessed. The shielding ability of samples was evaluated by determining the linear and mass attenuation coefficients (μ and μ m ), radiation protection efficiency (RPE), half-value layer (HVL), and mean free path (MFP). According to our findings, supplementing HDPE with additives improved the attenuation of beams. The μ m values showed that composite X-ray shielding characteristics were enhanced with filler concentration for both Si and SiC. Polymer composites with micro-molecule fillers shelter X-rays better than polymers, especially at low energy. The HVL and MFB values of the filler are lower than those of the pure HDPE sample, indicating that less thickness is needed to shield at the appropriate energy. HC-20 blocked 92% of the incident beam at 32.5 keV. This study found that increasing the composite sample thickness or polymer filler percentage could shield against low-energy radiation. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2073-4360 |
| Relation: | https://www.mdpi.com/2073-4360/16/9/1212; https://doaj.org/toc/2073-4360; https://doaj.org/article/ab1cb9b89e10454bb825bbb32be3e277 |
| DOI: | 10.3390/polym16091212 |
| الاتاحة: | https://doi.org/10.3390/polym16091212 https://doaj.org/article/ab1cb9b89e10454bb825bbb32be3e277 |
| رقم الانضمام: | edsbas.51A1E461 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 20734360 |
|---|---|
| DOI: | 10.3390/polym16091212 |