This research examines how swelling and crosslinking affect the mechanical properties of hydrogel fibers, suggesting pathways for enhanced biobased materials.
Key Points
The study aims to understand the mechanisms by which swelling and crosslinking influence the microstructural and mechanical properties of SA/PAAS hydrogel fibers.
Created SA/PAAS composite hydrogel fibers using wet-spinning technique.
Investigated the competition between swelling and crosslinking mechanisms.
Analyzed the evolution of microstructure and mechanical properties throughout the process.
Fibers underwent a three-phase evolution from a heterogeneous structure to a uniform, dense dual-network.
Achieved maximum strength of 3.48 MPa and toughness of 1.83 MJ/m3.
Demonstrated a notable increase in strength and toughness, along with high energy dissipation above 66%.