Medium-refractive-index vulcanization-resistant LED packaging silica gel

The invention relates to medium-refractive-index LED packaging silica gel. The medium-refractive-index LED packaging silica gel comprises a component A and a component B; the weight ratio of the component A to the component B is 1:1, wherein the component A is prepared from, by weight, 20-30 parts of vinyl silicone resin, 64-78 parts of dimethyl diphenyl vinyl silicone oil, 0.1-0.2 part of a pt-xcatalyst and 2-6 parts of an adhesive; the component B is prepared from, by weight, 50-70 parts of vinyl silicone resin, 29-50 parts of methyl phenyl hydrogen-containing silicone oil and 0.04-0.2 partof an inhibitor. The medium-refractive-index LED packaging silica gel has the advantages that the addition of medium-refractive-index LED packaging silica gel resin and the special adhesive improvesthe crosslinking density after curing and improves the bonding adhesive force of the packaging gel to a base material, thereby improving the vulcanization resistance of the product. 本发明涉及种中折射率LED封装硅胶，包括组分A和组分B，所述组分A与组分B的重量比为1:1