Percolation threshold

{
  "id": "MLC-T-CHM-008627",
  "term": "Percolation threshold",
  "field": "Chemistry",
  "definition": "The specific concentration or volume fraction of a dispersed phase within a composite material at which a continuous network or pathway first forms throughout the entire matrix. Below this point, the dispersed particles are isolated, but once the threshold is reached, they connect to create a macroscopic pathway. For electrically conductive composites, exceeding this threshold results in a dramatic increase in the material's electrical conductivity.",
  "subject": "Polymer",
  "see_also": [
    "electrically conducting polymer composite"
  ],
  "references": [
    "PAC, 2022, 94, 15. 'Glossary of terms relating to electronic, photonic and magnetic properties of polymers (IUPAC Recommendations 2021)' on page 40 (https://doi.org/10.1515/pac-2020-0501)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/percolation-threshold/"
}