Investigation on CT characterization of pore structure in nylon-uncured rubber composite from a microscopic view.
Investigation on CT characterization of pore structure in nylon-uncured rubber composite from a microscopic view.
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DOI：
10.1038/s41598-021-95178-1
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发表时间：
2021-08-03
影响因子：
4.6
通讯作者：
Chen L
中科院分区：
文献类型：
--
作者：
Li Y;Chi Y;Han S;Miao Y;Chen L
为了建立表征尼龙-未硫化橡胶复合材料真实的微观孔-缝结构的几何模型，并进一步比较固体（尼龙）-气体（孔）两相与固体（尼龙）-粘弹性体（橡胶）-气体（孔）三相复合材料孔-缝中的分布规律，本文对尼龙材料和尼龙-橡胶复合材料分别应用X射线三维（3D）显微镜。利用三维可视化软件（Avizo），实现了三维重建和孔隙裂隙网络模型，并进行了定量统计和对比分析。结果表明，孔喉半径为3-4 μm/1-2 μm的尼龙材料孔喉数最大，分别占20.8%/33.9%，而孔喉半径为3-4 μm/1-2 μm的尼龙橡胶复合材料孔喉数仅占5.49%/11.3%。基于孔网络模型，认为尼龙材料的平均孔半径大于尼龙-橡胶复合材料的平均孔半径，孔/喉比表面积和孔/喉体积与孔半径具有完全一致的规律。研究结果为研究固体（尼龙）单相和固体（尼龙）-粘弹性体（橡胶）两相气体渗流能力的差异提供了理论依据。
In order to construct the geometric models characterizing the real micro pore-fracture structures of nylon-uncured rubber composite, and further compare the distribution law in the pore-fracture of solid (nylon)-gas (pore) two-phases with that of solid (nylon)-viscoelastic body (rubber)-gas (pore) three-phases composite, in this paper, the X-ray three-dimensional (3D) microscope is applied for the nylon material and nylon-rubber composite respectively. By employing the 3D visualization software (Avizo), three-dimensional reconstruction and pore-fracture network model is realized, where the quantitative statistics and comparative analysis are carried out. The results demonstrate that the pore/throat number of nylon material accounting for 20.8%/33.9% are the largest when the pore/throat radius is in the range of 3–4 μm/1–2 μm, respectively, however, the pore/throat number of nylon-rubber composite with the radius 3–4 μm/1–2 μm occupies merely 5.49%/11.3%. Furthermore, the average pore radius of nylon material is believed as larger than that of nylon-rubber composite based on the pore network model, where the pore/throat surface area and pore/throat volume have perfect consistent patterns with that of pore radius. This work will offer a theoretical basis for the investigation of gas seepage capability discrepancy between the solid (nylon) one-phase and solid (nylon)-viscoelastic body (rubber) two-phases.
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影响因子：
5.3
作者：
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通讯作者：
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DOI：
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发表时间：
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发表时间：
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影响因子：
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作者：
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影响因子：
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作者：
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通讯作者：
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