Hydrophilic Finishing of Polyester Fiber with Finishing Agents Based on Poly(γ-glutamic acid)

Abstract

The work is aimed to investigate the suitability of poly (γ-glutamic acid) (γ-PGA) for the hydrophilic finishing of polyester fiber. γ-PGA hydrogel was successfully synthesized by a simple mixture process in the aqueous solution. A novel hydrophilic finishing agent was prepared by γ-PGA hydrogel. The rheology behavior study indicated that γ-PGA solution and hydrophilic finishing agent performed pseudoplastic fluid and approximately Newtonian behavior, respectively. The particle diameter determined that particles in hydrophilic finishing agent reached micro-nanograde. Furthermore, polyester fiber was treated with γ-PGA solution and hydrophilic finishing agent. Moisture regain was evaluated as a key performance, results shown the hydrophilicity of polyester fiber was greatly enhanced by γ-PGA finishing.

High‐strength hydrogels: Microstructure design, characterization and applications

“…Besides cations‐polysaccharides networks, polyelectrolyte networks are always prepared by opposite charged polymers. In particular, some natural polymers are negatively charged (e.g., poly(glutamic acid), poly(aspartic acid) and alginate) or positively charged (e.g., chitosan, polylysine) at neutral pH. Hydrogels prepared based on these natural polyelectrolytes are always biocompatible and pH‐responsive.…”