Optimization of Exothermic, Foaming, and Mechanical Properties of Modified Polyurethane as Filling Material for Goaf Sealing Wall

<div>The stress-strain curves of PCS under uniaxial compression.</div>

Advances in Materials Science and Engineering

Figure 5: Optimization of Exothermic, Foaming, and Mechanical Properties of Modified Polyurethane as Filling Material for Goaf Sealing Wall 