...Kaiyan Yang; Xiaowu Gong; Lanli Bai; Yun Zhang; Na Zhou Purpose This study aims to prepare a low-formaldehyde and environmentally friendly glucose-lignin-based phenolic resin. Design/methodology/approach The authors directly used lignin to substitute formaldehyde to prepare lignin-based...

...Rahul Patil; Lina Jadhav; Nikhil Borane; Satyendra Mishra; Vikas Patil Purpose Here, diazo coupling reaction was imparted on chemically inert lignin isolated from natural resources. Activated lignin was coupled with the diazotised aniline, m-nitroaniline, p-nitroaniline-, and p-anisidine gives...

... and enhancing its resistance to degradation. One such additive is lignin, which is the primary component of lignocellulosic biomass. Lignin is a low-cost polymer with great promise as a natural antioxidant, as it is biodegradable and does not form hazardous compounds during vulcanization (Abdel Zaher et al...

..., vessels, and tracheid, have lignin as an important constituent. It constitutes 20‐30 per cent of the weight of wood. Originality/value Lignosulphonate modified ketonic resins have been synthesized in the presence of a base catalyst. These resins have higher Tg or Tm values and molecular weight than...

...A.M.A. Nada; M.A. Yousef; K.A. Shaffei; A. Salah Bagasse and rice straw lignins undergo different treatments, e.g. acid hydrolysis, oxidation with hydrogen peroxide and thermal treatment, before being used as a partial replacement for phenol in phenol formaldehyde resin. These treatments improved...

...A.M.A. Nada; M.A. Yousef; K.A. Shaffei; A.M. Salah Lignin precipitated from different black liquors wasted from the cooking of rice straw, bagasse and cotton stalks, to produce pulp and paper, can replace phenol by up to 40 per cent in phenol formaldehyde resin. The properties of the resin produced...