Dual-functionalized lignin as a sustainable modifier for high-performance phenol-formaldehyde adhesives in plywood production.

ABSTRACT: Biopolymers derived from natural sources are sustainable, non-toxic, and biodegradable, making them attractive alternatives to fossil-based polymers. Among these, lignin has garnered significant attention due to its potential in adhesive applications. In this study, lignin was extracted from redwood (Pinus sylvestris L.) sawdust using an alkaline delignification process and subsequently modified through propargylation and silanization. Comprehensive characterization using FTIR, solubility tests, TGA/DTG, ¹H NMR, SEM-EDX, and contact angle measurements confirmed significant improvements in physicochemical properties. Notably, silylated lignins exhibited enhanced solubility in low-polarity solvents and a marked increase in hydrophobicity, with water contact angles reaching

SUBMITTER: Anter N 

PROVIDER: S-EPMC12412671 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature