Preparation method of lignin-accelerator CZ/NR/ESBR composite material

The invention relates to the technical field of production of rubber composite materials, in particular to a preparation method of a lignin-accelerator CZ/NR/ESBR composite material, a coupling agent reacts with hydrophilic hydroxyl on the surface of lignin to generate hydrophobic siloxy and provide an organophilic epoxy group, an accelerator CZ is loaded on the surface of the lignin, and the lignin-accelerator CZ/NR/ESBR composite material is obtained. According to the present invention, the lignin-accelerator CZ rubber auxiliary agent is prepared by carrying out a reaction on the secondary amine on the molecular chain of the accelerator CZ and the epoxy group of the coupling agent, and grafting the accelerator CZ to the surface of the lignin through the covalent bond, and the lignin-accelerator CZ rubber auxiliary agent has the following beneficial effects that the accelerator CZ loaded on the lignin is the high-activity and after-effect sulfenamide accelerator, and has characteristics of strong scorching r