Dynamic Forming of Calcium Alginate/Golyethylene Glycol Acrylate Dual Network Fibers Enhanced by Polyvinyl Alcohol Microcrystalline Cross-linking

In this experiment, Calcium alginate (CA)/polyethylene glycol diacrylate (PEGDA)/polyvinyl alcohol(PVA) composite fiber containing PVA microcrystalline cross-linking point and PEGDA/CA double network structure was prepared by 'one pot method', freeze-thaw cycle and dynamic molding method. PEGDA was used as the chemical crosslinking component, sodium alginate (SA) was the ionic crosslinking component, and PVA was the microcrystalline crosslinking component. The breaking strength and breaking elongation of the microcrystalline cross-linking synergistically with double network composite fiber are 3.18cN/dtex and 11.75% respectively, which are 30.33% and 74.07% higher than that of regenerated CA fiber. The rheological properties of SA/PEGDA/PVA solution, the mechanical properties and morphology of CA/PEGDA/PVA fiber were also studied. And this experiment was also focused on analyzing the mechanism and influencing factors of improving the mechanical properties of composite fibers.