Radiation-resistant sterilized silica gel dressing as well as preparation method and application thereof

The invention belongs to the technical field of medical dressings, and relates to an irradiation-resistant sterilized silica gel dressing which is widely applied to the aspects of wound self-repairing, scar inhibition, pressure reduction, antibiosis, deodorization, hemostasis, foam dressings, eye pads, scar patches, fixing bands and the like. Comprising a release layer, a porous silica gel layer, an absorption layer and a waterproof layer which are compounded into a whole through bonding and heat sealing processes and are prepared through die cutting and slitting. Wherein the porous silica gel layer has irradiation resistance, by controlling the ratio of a silicon hydrogen group to a silicon vinyl group in a system to be 0.35-0.85, firstly, methyl phenyl vinyl silicone oil, vinyl-terminated silicone oil, MDTQ methyl phenyl vinyl silicone resin and a catalyst are used as main raw materials to prepare a component A; then preparing a component B by taking methyl phenyl vinyl silicone oil, vinyl-terminated silico