[O1-25]
Uniform Synthesis of Lignin Nanoparticles and the Effects of its Content on Microstructure and Properties of Polymer Nanocomposites
발표자이인준 (서울대학교)
연구책임자김소연 (서울대학교)
Abstract
Lignin, the second most abundant biopolymer after cellulose, is gaining attention in academia and industry as a promising material for eco-friendly process. Recent studies have focused on employing lignin in the form of lignin nanoparticles (LNPs) in polymer nanocomposites (PNCs) to enhance material properties.
In this study, LNPs (~tens of nm) were readily produced via anti-solvent precipitation. Polyvinyl alcohol (PVA) was used as the matrix polymer, and then PNCs were fabricated by solution casting method. We investigated the effects of LNP content and PVA molecular weight on PNC’s microstructure and properties. Small-Angle X-ray Scattering (SAXS) and rheometer were employed to analyze LNP dispersion and microstructure. Structural variation in the solution state were found to influence crystallinity and properties of PNCs.
Through these findings, we aim to understand the role of LNPs and contribute to the growing knowledge of lignin-based nanocomposites and their potential applications in sustainable materials science.