ABSTRACT Fireproof glass, a critical material for fire protection, has attracted sustained research interest to enhance its fire resistance and durability. A ternary interpenetrating polymer network (IPN) hydrogel composed of polyacrylamide (PAM), polyethylene glycol (PEG), and polyvinyl alcohol (PVA) was constructed and applied to grouting fireproof glass. The fire resistance of fireproof glass was investigated by various analytical methods. Results show that the ternary IPN hydrogel endows the fireproof glass with high fire resistance and optical transparency. When the mass ratio of acrylamide, PEG, and PVA is 5: 0.5: 0.5 in the hydrogel, the obtained fireproof glass named L3 demonstrates a light transmittance exceeding 80%, a residual weight of 37.6% at 800°C, and an equilibrium backside temperature of 130.6°C at 3600 s. In the accelerated aging test, L3 sample exhibits a favorable anti‐aging performance after 7 aging cycles, which retains 94.9% and 79.9% of its original light transmission and heat insulation performance. The enhanced anti‐aging properties of the fireproof glass can be attributed to the improvement of hydrolysis and ultraviolet resistance conferred by the ternary IPN structure. This research provides valuable insights for enhancing the fire resistance and anti‐aging properties of grouting fireproof glass.
Wu et al. (Sat,) studied this question.