High-thermal-conductivity double-sided tape for LED bonding and preparation method of high-thermal-conductivity double-sided tape

The invention discloses a high-thermal-conductivity double-sided adhesive tape for LED bonding and a preparation method thereof, the double-sided adhesive tape sequentially comprises a release layer, an acrylic heat-conducting adhesive layer, a polyester film and an acrylic heat-conducting adhesive layer, and the acrylic heat-conducting adhesive layer comprises an acrylate adhesive solution, a curing agent and modified AlN heat-conducting powder. Acrylic acid and a monomer with an epoxy group are added to modify a traditional acrylic pressure-sensitive adhesive, so that the flexibility of a polymer chain and the affinity of the polymer chain with inorganic particles are improved; the traditional epoxy group-containing acrylic curing agent is matched with the epoxy curing agent, so that the heat resistance is improved through thermocuring, and the temperature use range of the double-sided adhesive tape is expanded; traditional AlN is sequentially subjected to high-temperature hydrolysis and Ti hydrolysis, an i