Scholarlink

In this paper, we investigate ultra-high-molecular-weight-polyethylene (UHWMPE) doped with carbon black (CB) nanoinclusions. Two manufacturing procedures, compression molding (CM) and equal channel angular extrusion (ECAE), are considered. Micro-computed tomography (μCT) and scanning electron microscopy (SEM) studies, conducted for specimens with up to 10 wt% weight fractions of CB, show that for the considered carbon inclusion types, the nanoinclusions are arranged as layers of carbon-containing mixture around UHMWPE granules. The thickness of the layers depends on the type of inclusions, volume fraction, and the manufacturing process. To investigate how the effective material properties of the composite depend on the thickness of the carbon-containing layer, we use mesoscale numerical simulations combined with analytical micromechanical modeling approaches. A methodology to determine the thickness of the CB-containing layer based on the analysis of the SEM images was developed. The results were compared with the (μCT)-based evaluations and used to quantify the microstructures generated by CM and ECAE. In addition, numerical models of CB/UHMWPE nanocomposites were developed, and the simulation results were compared with the experimental measurements.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Microstructure and Manufacturing Process Impact on Effective Material Properties in Carbon/Ultra-High-Molecular-Weight-Polyethylene Nanocomposites

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Stanislav Buklovskyi,
  • Kateryna Miroshnichenko,
  • Igor Tsukrov,
  • Rebecca J. Thomson,
  • Peder C. Solberg,
  • Douglas W. Van Citters

摘要

In this paper, we investigate ultra-high-molecular-weight-polyethylene (UHWMPE) doped with carbon black (CB) nanoinclusions. Two manufacturing procedures, compression molding (CM) and equal channel angular extrusion (ECAE), are considered. Micro-computed tomography (μCT) and scanning electron microscopy (SEM) studies, conducted for specimens with up to 10 wt% weight fractions of CB, show that for the considered carbon inclusion types, the nanoinclusions are arranged as layers of carbon-containing mixture around UHMWPE granules. The thickness of the layers depends on the type of inclusions, volume fraction, and the manufacturing process. To investigate how the effective material properties of the composite depend on the thickness of the carbon-containing layer, we use mesoscale numerical simulations combined with analytical micromechanical modeling approaches. A methodology to determine the thickness of the CB-containing layer based on the analysis of the SEM images was developed. The results were compared with the (μCT)-based evaluations and used to quantify the microstructures generated by CM and ECAE. In addition, numerical models of CB/UHMWPE nanocomposites were developed, and the simulation results were compared with the experimental measurements.