High-temperature-resisting diffuse reflection paint for LED (light emitting diode)

Abstract

The invention relates to high-temperature-resisting diffuse reflection paint for an LED (light emitting diode). The high-temperature-resisting diffuse reflection paint comprises the following raw materials by weight percent: 55 to 82 percent of high-temperature-resisting organic silicon resin, 16 to 25 percent of titanium dioxide, 6 to 12percent of nano diatomite powder, 6 to 12 percent of rare-earth element oxide, 1.5 to 5 percent of a dispersant, 0.5 to 1 percent of a flattening agent, 0.5 to 1 percent of an antifoaming agent, 5 to 15 percent of a light dispersant and 5 to 15 percent of butyl acetate and a mixed solvent. The preparation process is simple and easy to realize and high in production efficiency; by adding the nano material, the heat radiating effect is remarkably improved; by adding the rare-earth element oxide, the activity of the paint composition is improved, the paint can work normally under the high-temperature situation, the diffuse reflection effect is good, the light is soft and uniform, the utilization rate of the light energy is high, the light intensity is greatly enhanced, the cost of a light source can be greatly saved, and the power consumption of the product can be reduced.

Description

Technical field: [0001] The invention relates to the field of coating production, in particular to a high temperature resistant diffuse reflection coating for LEDs. Background technique: [0002] LED is a new generation of solid cold light source. With its unparalleled technical advantages such as energy saving, environmental protection, long life and high controllability, it can be widely used in various indications, displays, decorations, backlights, general lighting and urban night scenes. my country released the national semiconductor lighting plan in 2003, and wrote it into the national medium and long-term scientific and technological development plan. LED semiconductor energy-saving lighting technology will become one of the mainstream directions of the lighting industry in the future. With the continuous advancement of the technology of LED semiconductor particles in recent years, their functions have expanded from display to lighting. LED semiconductors have gradua...

AI Technical Summary

Problems solved by technology

[0005] (2) The light of each LED bulb is too bright, which will strongly irritate the eyes, and it is not allowed to look directly, even for a short time, while ordinary energy-saving lamps are relatively softer

[0006] (3) The irradiation angle is limited, generally only 120° can be irradiated, while ordinary energy-saving lamps can almost irradiate 360°

[0009] Existing diffuse reflection coatings have low diffuse reflection efficiency of visible light and poor high temperature stability. In addition, in order to ensure high reflectivity of the coating, the content of reflective particles is generally high, which often results in poor adhesion between the coating and the substrate. question

At present, the diffuse reflective coating 6080 of Lanfei Optical is more successfully applied. It adopts the formula containing barium and sulfur, and the reflectivity value in the visible wavelength range can reach 95%. However, this coating can only be used in the environment below 80 ℃ If it is higher than this temperature, the diffuse reflective coating will be obviously yellowed or even burnt, and the reflectivity will be seriously reduced or even have no reflective effect.