Method for preparing radiating coating of light-emitting diode (LED) lamp

Abstract

The invention relates to a method for preparing a radiating coating of a light-emitting diode (LED) lamp. The radiating coating is prepared from the following components in percentage by weight: 30 to 60 percent of water-base resin, 20 percent of low-molecular polyamide, 10 to 20 percent of carbon nano tube, 1 to 5 percent of silicane coupling agent KH550, 5 to 40 percent of aluminum powder, 10 percent of rare-earth element oxide, 13 percent of silicon nitride, 15 to 20 percent of acetone, 1 to 2 percent of curing agent, 2 to 5 percent of mixture of dust preventive and smoothing agent and 3 to 5 percent of phenol. The radiating coating has high-radiation cooling performance, is used for reducing the surface temperature of a radiating cup, an aluminum substrate, a lampshade and the like in the LED lamp, and has excellent protective and decorative functions; due to the addition of a nano material unit, the contact area of a radiating device and the outside is increased, and a radiating effect is improved obviously; and due to the addition of the rare-earth element oxide, the activity of the radiating coating composition can be improved, and the radiating coating is also an optimal material for doping and stabilizing a coating structure.