Hydrogen-containing methyl phenyl silicone resin for LED packaging adhesive, and preparation method and application thereof

The invention belongs to the technical field of LED packaging adhesives, and particularly discloses hydrogen-containing methyl phenyl silicone resin for an LED packaging adhesive and a preparation method and an application thereof. The alkaline anion exchange resin is adopted for catalytic hydrolysis to synthesize hydroxyl-terminated phenyl silicone resin, condensation of alkoxy silane is facilitated under the alkaline condition, the condensation degree of the silicone resin is increased, a crosslinking structure of the final hydrogen-containing silicone resin is increased, and the crosslinking density of a cured product of the hydrogen-containing silicone resin is increased. The prepared hydrogen-containing methyl phenyl silicone resin is colorless transparent viscous liquid, and has characteristics of high light transmittance and good thermal stability, by adjusting the reaction conditions and the raw material ratio to a certain extent, the viscosity of the product can be controlledat 1500-2800 mps.s, the r