The electrical resistivity of CB–polymer piezoelectric nanocomposites

The electrical resistivity of CB–polymer piezoelectric nanocomposites | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article The electrical resistivity of CB–polymer piezoelectric nanocomposites Masoumeh Khamehchi, Ziwen Zhao, Mohammad J. Mahmoodi, Zhenjin Wang, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7128793/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Piezoelectric polymer nanocomposites reinforced with conductive particles, such as carbon black (CB), have gained significant attention for their unique combination of mechanical strength and tunable electrical properties. However, accurately predicting the overall electrical conductivity of these materials remains challenging due to the complex interactions between the polymer matrix and conductive nanoparticles, as well as the critical role of interphase regions and tunneling effects. In this study, a modified unit cell model is developed to incorporate interphase conductivity and tunneling resistance, enhancing the accuracy of conductivity predictions. A hierarchical modeling strategy is introduced to capture the synergistic effects of nano- and micro-scale fillers, providing a comprehensive framework for complex composite analysis. The model is validated using CB–KNN–epoxy nanocomposite films, demonstrating strong agreement between numerical predictions and experimental measurements. This work provides valuable insights into the design and optimization of high-performance piezoelectric composites for advanced energy harvesting and flexible electronics. Physical sciences/Engineering Physical sciences/Materials science Physical sciences/Nanoscience and technology Physical sciences/Physics Piezo-polymeric multi-scale nanocomposites Simplified unit cell (SUC) model Nanoparticle reinforcement Interphase conductivity Experimental validation Full Text Additional Declarations No competing interests reported. Supplementary Information is not available with this version. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7128793","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":496900320,"identity":"6db39b85-3b53-4005-b0a8-ab20e6db16dc","order_by":0,"name":"Masoumeh Khamehchi","email":"","orcid":"","institution":"Shahid Beheshti University","correspondingAuthor":false,"prefix":"","firstName":"Masoumeh","middleName":"","lastName":"Khamehchi","suffix":""},{"id":496900321,"identity":"087fc56a-4d30-44d2-9ba7-bdf92011f499","order_by":1,"name":"Ziwen Zhao","email":"","orcid":"","institution":"Tohoku University","correspondingAuthor":false,"prefix":"","firstName":"Ziwen","middleName":"","lastName":"Zhao","suffix":""},{"id":496900322,"identity":"79cce6ac-5048-417f-a1b4-f487a2ad9e69","order_by":2,"name":"Mohammad J. 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