Method for preparing fluorescent powder colloid
A phosphor, yellow phosphor technology, applied in chemical instruments and methods, luminescent materials, semiconductor devices, etc., can solve the problems of non-luminescent chip adjustment lamps, single function, etc., achieve good consistency, uniform light, and improve luminous quality Effect
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[0033] Concrete processing steps of the present invention are:
[0034] 1) Preheat epoxy resin A at 55-65°C for 1-1.5 hours;
[0035] 2) Put the fluorescent powder, epoxy resin agent A and curing agent B agent in a mass-number ratio of 10:100:100 into a mixer, and mix them uniformly at a stirring rate of 30 rpm for 10 minutes;
[0036] 3) Vacuumize the mixture of fluorescent powder, epoxy resin agent A and curing agent B at a temperature of 80°C for 10 minutes at 100-110 Pa to remove bubbles in the melted mixture to obtain a finished product.
[0037] The above-mentioned epoxy resin A agent and curing agent B agent are composed of epoxy resin A and curing agent B agent in a mass ratio of 1:1.
[0038]The above-mentioned phosphor is yellow phosphor, its excited peak wavelength is between 455-465nm, and the light-emitting peak wavelength of the blue LED chip is 460-462.5nm. According to the international standard 1931CIE color map, the best range for generating white light is, ...
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