Formula of medical butyl rubber material and preparation technology

The invention discloses a formula of a medical butyl rubber material and a preparation technology. The medical butyl rubber material is prepared from the following raw materials in parts by weight: 15to 20 parts of pentamethylenethiuram tetrasulfide, 5 to 20 parts of butyl rubber, 5 to 15 parts of high styrene resin, 3 to 5 parts of phenolic resin, 4 to 5 parts of inorganic reinforcing filler, 5to 8 parts of silicon dioxide, 3 to 5 parts of sulfur donor, 1 to 2 parts of stearic acid, 2 to 3 parts of zinc oxide, 2 to 3 parts of coumarone resin and 8 to 10 parts of tetramethylenethiuram disulfide. The preparation technology comprises the following steps: firstly, drying a reaction still and ensuring no moisture in the still; then taking 50g of the butyl rubber for mincing and putting intothe reaction still; carrying out post-treatment such as separating and drying on the minced butyl rubber to obtain a product. By selecting the pentamethylenethiuram tetrasulfide and the butyl rubber as main raw materials and us