Journal Article Research Support, Non-U.S. Gov't high‐toughness materials Hydrogels Machine learning Model interpretability Model prediction Municipal sludge Polymers Predictive software Sewage aqueous batteries chemical oxidation effects design‐structure‐performance relationship electrochemistry healable materials mismatched supramolecular interactions precipitated iodine electrodes recyclable polymers scalable production line shore hardness thermoplastic elastomer thermoset elastomers