| abstract |
The invention relates to a lignin-based nitrogen and phosphorus-containing flame retardant, and a preparation method and application thereof. The flame retardant is prepared by reacting lignin containing hydroxyl, triglycidyl isocyanurate, aminotrimethylene phosphonic acid and benzoic acid. The flame retardant contains a phosphate ester structure and has an excellent flame retardant effect; and contains N element, which can provide nitrogen source in the flame retardant; and the lignin is used as a carbon forming agent to form the high-efficiency flame retardant with a synergistic effect. The utilization rate of the lignin is increased, and meanwhile, the benzene ring contained in the lignin can enhance the mechanical property of the material. |