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, respectively. Remarkably, after 14 days of storage under extreme conditions of high-pressure saline environment (20 MPa hydrostatic pressure, 35‰ salinity), the hydrogel retained over 100% of its initial mechanical properties and structural integrity, demonstrating excellent environmental stability. Such superior performance enables their application as load-bearing components in diverse extreme environments. The design and fabrication strategy of PVA-based hydrogels reported in this study provides a groundbreaking solution for hydrogel applications under extreme conditions, overcoming the inherent limitations of conventional hydrogels and paving a new avenue for expanding their engineering applications in demanding scenarios.
Liu et al. (Fri,) studied this question.