聚合物炭黑纳米复合材料导电预测给出简明路径：隧穿长度1纳米与电阻率50欧姆米时导电率达3.4西门子每米，《科学报告》11月13日刊出
《科学报告》于 2026 年 11 月 13 日刊出一项理论研究，为聚合物炭黑纳米复合材料的导电性能提出一条简明预测路径，论文数字对象标识为 10.1038/s41598-026-78696-8。
研究团队改进并推进了 Hui-Shia 模型，用以估算以炭黑为纳米填料的复合材料导电率。改进模型把炭黑与界面相网络的浓度以及隧穿电阻视为影响电子转移的关键项，并分析了炭黑尺寸、隧穿特性、界面相深度、网络浓度与渗流起点等因素的作用。
模型显示，隧穿长度与聚合物电阻率反向支配导电：隧穿长度为 1、聚合物电阻率为 50 欧姆米时，导电率可升至 3.4 西门子每米；而隧穿长度大于 7 纳米时，导电率只有 0.08 西门子每米。
较小的炭黑半径与较大的界面相深度同样有利：半径 15 纳米、界面相深度 25 纳米时导电率达 2 西门子每米；半径大于 27 纳米或界面相深度小于 11 纳米时，样品趋于绝缘。网络量与接触直径则正向支配电子转移，网络量 0.15、接触直径 60 纳米时导电率达 1 西门子每米，而网络量小于 0.01 或接触直径小于 20 纳米时仅为 0.002 西门子每米。
论文作者来自土耳其盖布泽技术大学、科威特中东美国大学、格鲁吉亚大学与伊朗国家癌症研究所等机构，通讯作者为 Yasser Zare。研究以数个实测导电率实例评估了改进模型的预测，未获外部资助。
（来源：《科学报告》）
A Simple Pathway Predicts the Electrical Performance of Polymer Carbon Black Nanocomposites: Conductivity Reaches 3.4 Siemens per Meter at a Tunneling Length of 1 and Resistivity of 50 Ohm-Meters, Published in Scientific Reports on November 13
Scientific Reports published a theoretical study on November 13, 2026 offering a simple pathway for predicting the electrical performance of polymer carbon black nanoparticle systems, under DOI 10.1038/s41598-026-78696-8. The team modified and advanced the Hui-Shia model to estimate the conduction of nanocomposites with carbon black nanofiller. The advanced model treats the concentration of carbon black and interphase networks, together with the tunneling resistance, as the key terms influencing electron transfer, and analyzes the effects of carbon black size, tunneling characteristics, interphase depth, network concentration and percolation onset. Both tunneling length and polymer resistivity inversely govern conduction. A tunneling length of 1 and a polymer resistivity of 50 ohm-meters boost conduction to 3.4 siemens per meter, while a tunneling length above 7 nanometers produces a poor conductivity of 0.08 siemens per meter. A smaller carbon black radius and a higher interphase depth also help. A radius of 15 nanometers and an interphase depth of 25 nanometers grow the conductivity to 2 siemens per meter, while a radius above 27 nanometers or an interphase depth below 11 nanometers produces an insulated sample. A network amount of 0.15 and a contact diameter of 60 nanometers give 1 siemens per meter, against only 0.002 siemens per meter when the network amount falls below 0.01 or the contact diameter below 20 nanometers. The authors are based at Gebze Technical University in Türkiye, the American University of the Middle East in Kuwait, the University of Georgia and Iran's National Cancer Institute, with correspondence to Yasser Zare. The measured conductivity of several examples was provided to evaluate the model's predictions, and no funding was received for the work.
(Source: Scientific)
来源：《科学报告》
发布：GSM·美国（发布链接）
图片来源：图：实验室内的医学成像设备。National Institute of Allergy and Infectious Diseases，公共领域，经 Wikimedia Commons。 / Photo: National Institute of Allergy and Infectious Diseases, public domain, via Wikimedia Commons.
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