Liquid isoprene rubber containing bead filler composition of tire as well as preparation method and application thereof

The invention relates to the field of manufacture of tires, in particular to a liquid isoprene rubber containing bead filler composition of a tire as well as a preparation method and application thereof. The liquid isoprene rubber containing bead filler composition of the tire is formed by mixing the following components in parts by weight: 85-97 parts of natural rubber, 3-15 parts of liquid isoprene rubber, 65-75 parts of carbon black, 4-8 parts of vulcanizing agent and vulcanization accelerator and the balance of processing assistants. In the invention, the stiffness of parts can be sufficiently ensured, and the deformation of the parts in the processing process can be prevented; and moreover, the higher processing safety of rubber materials can be ensured due to longer scorching time. When an all-steel radial truck tire provided by the invention is adopted, the high extrusion temperature rise is reduced, the production efficiency is increased, the technical loss is reduced and the like on the premise that the structure is unchanged, and the main physical mechanical properties of hard bead filler materials, the dimension stability of the parts, and the technical viscidity is notunreduced.