Jute felt composite from lignin modified phenolic resin

Raw and dewaxed Jute felt composites were prepared with resol and lignin mo dified phenol formaldehyde resin. Four different types of lignin modified r esins were used by replacing phenol with lignin. The lignin modified resins were prepared from purified lignin obtained from paper industry waste blac k liquor. To investigate bonding between Jute and resin, IR spectroscopy of Jute felts and composites was carried out. The thermal stability of the co mposites was assessed by DSC and TGA. It was found that the lignin resin Ju te composite is thermally more stable than resol composite. XRD of Jute fel t and composite shows that the crystallinity of the Jute fiber increases af ter composite preparation. The lignin resin composites were tested for wate r absorption and thickness swelling, and it was found that the results are comparable with those of resol jute composite. Composites prepared from lig nin phenol formaldehyde resin with 50% phenol replacement has shown 75% ten sile strength retention to that of pure resol jute composite.