ArticlePolymers2026
Lignin-Assisted Dispersion and Iohexol Retention in Lead-Free Bi
Article in Polymers, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Conventional lead-based protective materials used in diagnostic radiology involve some notable limitations in terms of high weight, toxicity, and environmental concerns associated with their disposal. Lead-free polymer shielding materials incorporating high-atomic-number fillers and iodine-containing components have therefore attracted increasing attention. However, high filler loading can induce particle agglomeration, localized iodine-rich regions, interfacial defects, and nonuniform X-ray attenuation. Accordingly, improving filler dispersion and structural stability is essential to maintain effective shielding performance. In this study, the effects of lignin-assisted interfacial stabilization on filler dispersion, iodine retention, structural properties, and X-ray shielding performance in highly filled polyurethane (PU) composites were investigated. At 80 kVp, a 3 wt% lignin sheet exhibited a radiation protection efficiency of 77.4%, a linear attenuation coefficient of 48.52 cm
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