Effect of tyre-derived rubber particle size on the mechanical properties of rubberised syntactic foam

Nathaphon Buddhacosa , Joel Galos , Akbar Khatibi , Raj Das , Everson Kandare
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Abstract

This paper presents research findings on the influence of tyre-derived rubber particle size on the mechanical properties of rubberised syntactic foam manufactured through stir casting. The study examined how the rubber particle size affected the shear, in-plane compression, and through-thickness compression properties, as well as the flexural properties of sandwich composites with rubberised syntactic foam core. Rubber particles of various sizes (<150 µm, 150–250 µm, 250–425 µm, and >425 µm) were integrated into the syntactic foam at both low (9 wt%) and high (23 wt%) concentrations. Rubber particles measuring less than 150 µm, promoted agglomeration and increased void volume due to elevated viscosity, leading to a reduction in the mechanical properties of the rubberised foam. Conversely, larger rubber particles exceeding 425 µm reduced the mechanical properties of the syntactic foam due to debonding at the matrix/rubber interface. This study identified the optimal rubber particle size for achieving the highest mechanical properties in rubberised foam, which falls within the range of 150–425 µm. This research demonstrates the sustainable development of multifunctional composites from recovered waste tyres.

轮胎衍生橡胶颗粒大小对橡胶合成泡沫机械性能的影响
本文介绍了轮胎衍生橡胶粒度对搅拌铸造橡胶合成泡沫机械性能影响的研究成果。该研究探讨了橡胶颗粒大小如何影响带有橡胶合成泡沫芯材的夹层复合材料的剪切、平面内压缩和厚度压缩性能以及弯曲性能。不同尺寸(150 微米、150-250 微米、250-425 微米和 425 微米)的橡胶颗粒分别以低浓度(9 wt%)和高浓度(23 wt%)加入合成泡沫中。小于 150 µm 的橡胶颗粒会促进结块,并由于粘度升高而增加空隙体积,导致橡胶泡沫的机械性能降低。相反,超过 425 微米的较大橡胶颗粒则会因基体/橡胶界面的脱粘而降低合成泡沫的机械性能。这项研究确定了实现橡胶泡沫最高机械性能的最佳橡胶颗粒尺寸,即 150-425 微米范围内的橡胶颗粒。这项研究证明了利用回收废轮胎制造多功能复合材料的可持续发展性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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CiteScore
9.20
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