{
  "title": "Binder Viscosity Profiler",
  "author": "adalberto-tolosa",
  "version": "1.0.0",
  "description": "Temperature-dependent viscosity predictor for gum arabic binder solutions using Arrhenius equation",
  "wikidata_grounding": {
    "arrhenius_equation": "Q507505",
    "gum_arabic": "Q535814",
    "viscosity": "Q128709"
  },
  "constants": {
    "activation_energy_J_per_mol": 45000,
    "gas_constant_J_per_mol_K": 8.314,
    "calibration_note": "Activation energy tuned to polysaccharide hydrogel behavior in acacia sap derivatives"
  },
  "formula": {
    "latex": "\\eta(T) = \\eta_0 \\times \\exp\\left[\\frac{E_a}{R} \\times \\left(\\frac{1}{T} - \\frac{1}{T_0}\\right)\\right]",
    "plain_text": "eta(T) = eta_0 * exp[(E_a / R) * (1/T - 1/T_0)]",
    "variables": {
      "eta_T": "target viscosity (Pa·s)",
      "eta_0": "reference viscosity at T_0 (Pa·s)",
      "E_a": "activation energy (J/mol)",
      "R": "universal gas constant (J·mol^-1·K^-1)",
      "T": "target absolute temperature (K)",
      "T_0": "reference absolute temperature (K)"
    }
  },
  "interpretation_thresholds": {
    "moderate_thinning": { "ratio_min": 0.85, "ratio_max": 0.95, "action": "adjust_pigment_load" },
    "significant_thinning": { "ratio_min": 0.70, "ratio_max": 0.85, "action": "reduce_water_ratio" },
    "critical_thinning": { "ratio_max": 0.70, "action": "reformulate_or_cool" },
    "thickening": { "ratio_min": 1.0, "action": "expect_slower_flow" }
  },
  "measurement_protocol": {
    "step_1": "Measure reference temperature T_0 in Celsius, convert to Kelvin",
    "step_2": "Measure reference viscosity eta_0 at T_0 using viscometer or calibrated flow test",
    "step_3": "Define target temperature T for studio or field condition",
    "step_4": "Execute Arrhenius transform to compute eta(T)",
    "step_5": "Compare ratio eta(T)/eta_0 against interpretation thresholds"
  },
  "sources": [
    "https://4ort.xyz/entity/arrhenius-equation",
    "https://4ort.xyz/entity/gum-arabic",
    "https://4ort.xyz/entity/viscosity"
  ],
  "homepage": "https://adalberto-tolosa.4ort.net/binder-viscosity-profiler.html",
  "published": "2026-07-18T08:00:00Z"
}