Effects of Lignin Fractionation on the Mechanical and Thermo-Oxidation Properties of SSBR/Silica Composites.

ABSTRACT: Lignin is a polyphenolic compound extracted from plant pulps in the paper industry. It has attracted significant interest for the rubber industry due to its inherent antioxidant function and reinforcement effect. However, the structural heterogeneity and poor solubility of lignin have limited its applications. This study systematically investigated the chemical composition, molecular weight, and radical scavenging capability of four commercial lignin products and their fractionated portions, derived through sequential fractionation processes. The first fraction (F1) of hardwood lignin (UPM) has the lowest molecular weight (M _w = 2700) and yield (6%) but the highest radical scavenging activity (RSA = 38.45%). In contrast, F1 of enzymatic hydrolysis lignin (EHL) obtained th

SUBMITTER: Arslan ON 

PROVIDER: S-EPMC12746543 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature