Micro‐tomographic characterization of composite recycled glass‐silicone foams for applications in civil engineering

Luigi Calabrese, Tommaso Scalici, Amani Khaskhoussi, Edoardo Proverbio, Antonino Valenza

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Abstract

Noninvasive X‐ray micro‐computed tomography was applied for a complete quantitative and qualitative analysis of the cellular structure of composite foams constituted by a silicone matrix and a glass production waste filler. Composite foams with different glass filler weight content in the range 0–80% were synthesized and characterized. The tomographic analysis was employed in order to assess the structural heterogeneities, void fraction values, and bubble size distribution for all composite foams. The 3D micro‐CT images analysis, performed at different cross‐sections, highlighted heterogeneous cell growth or more elongated cells in the case of low and high filler content foams, respectively. Batch with 60% of glass filler was identified as a composite foam with effective void fraction values and relatively uniform spheroidal cellular structure (average sphericity 0.723 and diameter 0.107 mm)
Original languageEnglish
JournalJournal of Applied Polymer Science
Early online date13 Nov 2019
DOIs
Publication statusEarly online date - 13 Nov 2019

Keywords

  • Composites
  • Foam
  • Morphology
  • Silicone
  • Micro-CT

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