Sodium-Alginate-Doped Lignin Nanoparticles for PBAT Composite Films to Dually Enhance Tensile Strength and Elongation Performance with Functionality

Polymers, Journal Year: 2024, Volume and Issue: 16(16), P. 2312 - 2312

Published: Aug. 15, 2024

It is a formidable challenge in thermoplastic/lignin composites to simultaneously boost tensile strength and elongation performance due the rigidity of lignin. To address this issue, sodium-alginate-doped lignin nanoparticles (SLNPs) were prepared by combining solvent exchange coprecipitation method used as an eco-friendly filler for poly(butylene adipate-co-terephthalate) (PBAT). The results indicated that 1% polyanionic sodium alginate solution contributed formation SLNP lignin/THF solution. with mean hydrodynamic diameter ~500 nm Zeta potential value -19.2 mV was obtained, indicating more hydrophobic smaller number agglomerates suspension. Only 0.5 wt% addition improved yield strength, at break 32.4%, 31.8%, 35.1% PBAT/SLNP composite films, respectively. reinforcing effect resulted from rigid aromatic structure SLNP, whereas enhanced attributed nanostructural feature which may promote boundary cracking. Additionally, films displayed excellent ultraviolet (UV) resistance UV shielding percentage near 100% UVB than 75% UVA, hindered water vapor, enhancing moisture barrier properties. Overall, study provides effective strategy eliminate decrement PBAT/lignin suggest they are good candidates be extensively utilized.

Language: Английский

Effect of titanate coupling agent on antioxidant property and UV blocking property of PBAT/lignin composite films

Polymer Testing, Journal Year: 2024, Volume and Issue: unknown, P. 108613 - 108613

Published: Oct. 1, 2024

Language: Английский