Valorization of silicone waste powder as industrial-waste-derived fillers in Bi2O3/EPDM nanocomposites for potential use in diagnostic X-ray protection
Rattachement africain : th, Cameroun. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
This study valorized silicone waste powder (SWP) reclaimed from discarded silicone molds as a silica-rich secondary filler in ethylene–propylene–diene monomer (EPDM) composites containing nano-sized bismuth oxide (nano-Bi 2 O 3 ) for lead-free diagnostic X-ray shielding applications. To enhance filler–matrix compatibility, SWP was surface-treated with silane coupling agent (Bis-[3-(triethoxysilyl)propyl]tetrasulfide; TESPT), and the optimum treatment condition was determined through mechanical-property evaluation. Subsequently, nano-Bi 2 O 3 /SWP/EPDM composites containing 0 – 500 parts per hundred rubbers by weight (phr) nano-Bi 2 O 3 were fabricated and systematically characterized for their morphology, density, thermal stability, mechanical properties, and X-ray attenuation abilities at tube voltages of 60, 100, and 150 kVp. The results revealed that TESPT treatment improved interfacial adhesion between SWP and EPDM, with 1 g TESPT per 100 g SWP providing the highest tensile strength. Incorporation of nano-Bi 2 O 3 was found to substantially enhance the X-ray shielding properties of the composites, as evidenced by progressive increases in attenuation capability with increasing filler content. Particularly, a nano-Bi 2 O 3 content of 425 phr was sufficient to achieve the commonly required shielding level of 0.35 mmPb for diagnostic X-ray protection. In addition to improved shielding properties, increasing nano-Bi 2 O 3 content also enhanced thermal stability, tensile modulus, tensile strength, and hardness, while reducing solvent swelling. Based on the overall findings, the nano-Bi 2 O 3 /SWP/EPDM composites demonstrated a practical approach for converting SWP into value-added products while providing flexible and lead-free radiation-shielding materials suitable for diagnostic X-ray applications, including wearable protective devices, protective garments, and other radiation-shielding components for medical imaging facilities.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Valorization of silicone waste powder as industrial-waste-derived fillers in Bi2O3/EPDM nanocomposites for potential use in diagnostic X-ray protection
- Date Crossref
- 01/09/2026
- Éditeur
- Elsevier BV
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Kasetsart University pays non établi dans la noticeUniversité ou école supérieure
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Joint Graduate School of Energy and Environment Materials Technology Program pays non établi dans la noticeUniversité ou école supérieure
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King Mongkut's University of Technology Thonburi pays non établi dans la noticeUniversité ou école supérieure
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Chiang Mai University pays non établi dans la noticeUniversité ou école supérieure
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Thailand Center of Excellence in Physics pays non établi dans la noticeStructure de recherche
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Ministry of Higher Education Center of Excellence for Innovation in Chemistry (PERCH-CIC) Cameroun (code pays fourni par la source)Organisme public
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Ministry of Higher Education pays non établi dans la noticeOrganisme public
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Thailand Institute of Nuclear Technology Nuclear Technology Research and Development Center pays non établi dans la noticeStructure de recherche
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Faculty of Science Department of Applied Radiation and Isotopes pays non établi dans la noticeUniversité ou école supérieure
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Faculty of Associated Medical Sciences Department of Radiologic Technology pays non établi dans la noticeUniversité ou école supérieure
Kasetsart University, Materials Technology Program — Joint Graduate School of Energy and Environment et King Mongkut's University of Technology Thonburi, avec 7 autres affiliations. Pays d’affiliation : Cameroun.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.