Method for modifying polytetrafluoroethylene by using basalt chopped fibers

The invention discloses a method for modifying polytetrafluoroethylene by using basalt chopped fibers, relates to the technical field of polytetrafluoroethylene modification, and solves the problems of very low tensile strength and compressive strength of a polytetrafluoroethylene plate in the prior art. The specific method comprises the following steps: putting basalt chopped fibers and polytetrafluoroethylene into a stirrer according to a mass ratio of 3: 7, stirring, and uniformly mixing to obtain a blended material; then putting the blended material into a mold pressing mold for mold pressing forming, firstly performing pre-pressing forming, and then performing pressure maintaining treatment; putting the formed material into a sintering furnace, annealing, sintering, taking out the material, and cooling to room temperature to obtain the modified polytetrafluoroethylene. and performing blending modification on polytetrafluoroethylene by using basalt chopped fibers. The tensile strength of the modified poly