The invention relates to lamp heat dissipation materials, in particular to an LED aluminum-base composite heat dissipation material containing modified powdered
pumice and a production method of the material. The heat dissipation material comprises, by weight, five to eight parts of
zirconium silicate, seven to nine parts of
silicon carbide, 70 to 72 parts of aluminum, three to five parts of
pentaerythritol, 13 parts to 15 parts of aluminum
nitride, 10 parts to 12 parts of
magnesium, five parts to eight parts of
copper nanoparticles, eight parts to ten parts of the powdered
pumice, seven parts to eight parts of aluminum
oxide, three parts to five parts of
silicone oil, six parts to eight parts of
potassium titanate whisker, two parts to four parts of
etidronic acid and four parts to five parts of auxiliaries. According to the heat dissipation material, advantages of the aluminum, the
magnesium, the
zirconium silicate, the
silicon carbide and other components are integrated, the good heat conduction and insulation performance can be both considered, the modified powdered
pumice formed by mixing of
etidronic acid dilute solutions, the
silicone oil and the
pentaerythritol and the
potassium titanate whisker are more compatible with other
metal powder, heat
conductivity coefficients are improved, the heat dissipation material is compact in structure, light, safe and durable in use, an LEDF
chip can be effectively protected due to the rapid heat dissipation capability, and the service life of a lamp is prolonged.