Corrosion-resistant and heat-dissipating coating for LED lamps and preparation method thereof

Abstract

A corrosion resistant heat radiation paint for an LED lamp is prepared by the raw materials by weight: 40-45 parts of aniline formaldehyde resin, 12-15 parts of terpolycyantoamino-formaldehyde resin, 3-4 parts of Dipropylenetriamine, 4-6 parts of double benzylamine ether, 4-4 parts of silane coupling agent KH550, 30-35 parts of aluminium nitride powder, 4-6 parts of beryllia, 8-10 parts of polyvinyl butyral, 2-3 parts of ethylene terephthalate, 4-9 parts of dimethicone, 2-3 parts of titanium dioxide, 1-2 parts of sodium sulfocyanate, 1-2 parts of hexabromocyclododecane, 8-10 parts of ethyl methyl ketone, 18-22 parts of ethyl acetate, and 4-5 parts of film forming auxiliary agent. Aluminium nitride powder and beryllia is added, so as that the paint has good heat conduction rate and good heat radiation effect, without changing mechanical properties; titanium dioxide is added, so as that the paint has a ultraviolet ray shielding function; aniline formaldehyde resin is added, so as that the paint has corrosion inhibition effect in an acidic medium; and the paint has weatherability, without color change and brightness reversion under high temperature baking.

Description

technical field [0001] The invention belongs to the technical field of coatings, and relates to a heat-dissipating coating, in particular to a corrosion-resistant and heat-dissipating coating for LED lamps and a preparation method thereof. Background technique [0002] As LED technology has received widespread attention as a new generation of lighting technology in recent years, the power of LED has increased, and the heat dissipation problem has also attracted more and more attention. At present, most of the thermal conductive adhesives are used to solve the heat dissipation problem of LED lamps, but the materials used have technical problems such as poor temperature resistance and aging resistance, low adhesion to the substrate, poor heat dissipation effect and inconvenient operation, which are difficult to meet people's expectations. Requirements for heat dissipation of LED lamps. Some manufacturers also start to select materials with higher thermal conductivity, but thi...

AI Technical Summary

Problems solved by technology

At present, most of the thermal conductive adhesives are used to solve the heat dissipation problem of LED lamps, but the materials used have technical problems such as poor temperature resistance and aging resistance, low adhesion to the substrate, poor heat dissipation effect and inconvenient operation, which are difficult to meet people's expectations. Requirements for heat dissipation of LED lamps

Some manufacturers are also starting to choose materials with higher thermal conductivity, but this will increase the production cost of LEDs.