Microstructural Origin of Nonmonotonic Piezoresistivity in Polymer Nanocomposites.

ABSTRACT: Incorporating conductive nanomaterials into polymers yields a new class of piezoresistive strain-sensing materials. While possessing monotonic resistance-strain behavior is a fundamental requirement for any material used for strain sensing, polymer nanocomposites frequently exhibit nonmonotonic resistance responses under strain, which limits their application prospects. In this study, physical experiments and molecular dynamics simulations are performed to determine a feasible solution to overcome this limitation. The corresponding results demonstrate that regulating the initial inter-nanofiller junction geometry imparts complete control over the monotonic piezoresistive behavior of polymer nanocomposites. Mechanistically, monotonically increasing resistance responses under tension can be

SUBMITTER: Wong TY 

PROVIDER: S-EPMC12463059 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature