Scholarlink

<p>Despite many experimented works on the conductivity of carbon black (CB)-polymer nanocomposites (PCBs), the modeling methodology in this field is imperfect requiring more development. The current article suggests a simple and accurate equation for the electrical conductivity of PCBs by CB radius, interphase depth, tunneling characteristics (<i>λ</i>), percolation onset, network percentage and interfacial tension. At the first step, the impact of model’s parameters on the PCB conductivity is designed and justified. Then, the offered model is validated by the real data of numerous samples with dissimilar polymer media and CB nanoparticles. Bigger tunnels with the smaller widest weaken the conductivity, however the peak conductivity of 11.5&#xa0;S/m is attained at tunneling distance (<i>λ</i>) of 2&#xa0;nm and contact diameter (<i>d</i>) of 45&#xa0;nm, while <i>λ</i> &gt; 5&#xa0;nm or <i>d</i> &lt; 20&#xa0;nm produce an insulating sample. Also, higher polymer surface energy (<i>γ</i><sub><i>p</i></sub>) and poorer CB surface tension (<i>γ</i><sub><i>f</i></sub>) reduce the conductivity and an insulated sample is detected at <i>γ</i><sub><i>p</i></sub> &gt; 30 mN/m and <i>γ</i><sub><i>f</i></sub> &lt; 45 mN/m. Nevertheless, the supreme conductivity of 1.6&#xa0;S/m is gained by the lowest <i>γ</i><sub><i>p</i></sub> = 20 mN/m and the top <i>γ</i><sub><i>f</i></sub> = 60 mN/m. Hence, both tunneling dimensions and surface tensions of components manipulate the conductivity of PCBs.</p>

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

Estimation of electrical conductivity for polymer composites with carbon black nanoparticles by interphase depth, tunneling characteristics and network percentage

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月25日

查看全文
  • Yasser Zare,
  • Muhammad Tajammal Munir,
  • Jin-Hwan Choi,
  • Kyong Yop Rhee

摘要

Despite many experimented works on the conductivity of carbon black (CB)-polymer nanocomposites (PCBs), the modeling methodology in this field is imperfect requiring more development. The current article suggests a simple and accurate equation for the electrical conductivity of PCBs by CB radius, interphase depth, tunneling characteristics (λ), percolation onset, network percentage and interfacial tension. At the first step, the impact of model’s parameters on the PCB conductivity is designed and justified. Then, the offered model is validated by the real data of numerous samples with dissimilar polymer media and CB nanoparticles. Bigger tunnels with the smaller widest weaken the conductivity, however the peak conductivity of 11.5 S/m is attained at tunneling distance (λ) of 2 nm and contact diameter (d) of 45 nm, while λ > 5 nm or d < 20 nm produce an insulating sample. Also, higher polymer surface energy (γp) and poorer CB surface tension (γf) reduce the conductivity and an insulated sample is detected at γp > 30 mN/m and γf < 45 mN/m. Nevertheless, the supreme conductivity of 1.6 S/m is gained by the lowest γp = 20 mN/m and the top γf = 60 mN/m. Hence, both tunneling dimensions and surface tensions of components manipulate the conductivity of PCBs.