Reinforced HNBR material and preparation method and application thereof

The invention belongs to the technical field of rubber, and particularly relates to a reinforced HNBR material and a preparation method and application thereof. The preparation method of the reinforced HNBR material comprises the following steps: A) mixing a nano aramid fiber filter cake with water, emulsifying and dispersing into a suspension, and adjusting the difference between the pH value of the suspension and the pH value of HNBR latex to be not more than 0.5; b) stirring and mixing the HNBR latex and the suspension, emulsifying and dispersing to obtain a mixed system; and C) adding a CaCl2 solution into the mixed system, demulsifying and settling while stirring, and drying an obtained solid compound to obtain the reinforced HNBR material. In the reinforced HNBR material prepared by the method, the nano aramid fiber plays a role in skeleton reinforcement in an HNBR matrix, and vulcanized rubber prepared from the reinforced HNBR material prepared by the method has better tensile strength and stress at de