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High-strength sheet aluminum oxide porous ceramic used for LED lamp heat dissipation and preparation method thereof
High-strength sheet aluminum oxide porous ceramic used for LED lamp heat dissipation comprises, by weight, 34-36 parts of alpha-Al2O3 (the particle size is 2 micrometers-8 micrometers), 100-105 parts of deionized water, 0.2-0.3 part of sodium polyacrylate, 2-2.3 parts of methylcellulose, 1.6-1.8 parts of glycerin, 1.3-1.6 parts of tetrapod-like zinc oxide whiskers, 0.6-0.8 part of submicron silica particles, 0.8-1 part of zirconium hydrogen phosphate, 0.4-0.6 part of nanometer pearl powder, 4-5 parts of nano-aluminium hydroxide, 1.2-1.5 parts of nano-copper and 0.9-1.1 parts of PVA adhesion agents. Through using the tetrapod-like zinc oxide whiskers, the properties of strength, abrasion resistance and wave absorption and antistatic and antibacterial properties of the sheet aluminum oxide porous ceramics are improved; through using the submicron silica particles, the zirconium hydrogen phosphate and the nanometer pearl powder, the pore connectivity of the ceramic is improved, heat conduction is improved, and the binding force with metal is increased.
High-strength sheet aluminum oxide porous ceramic used for LED lamp heat dissipation and preparation method thereof
High-strength sheet aluminum oxide porous ceramic used for LED lamp heat dissipation comprises, by weight, 34-36 parts of alpha-Al2O3 (the particle size is 2 micrometers-8 micrometers), 100-105 parts of deionized water, 0.2-0.3 part of sodium polyacrylate, 2-2.3 parts of methylcellulose, 1.6-1.8 parts of glycerin, 1.3-1.6 parts of tetrapod-like zinc oxide whiskers, 0.6-0.8 part of submicron silica particles, 0.8-1 part of zirconium hydrogen phosphate, 0.4-0.6 part of nanometer pearl powder, 4-5 parts of nano-aluminium hydroxide, 1.2-1.5 parts of nano-copper and 0.9-1.1 parts of PVA adhesion agents. Through using the tetrapod-like zinc oxide whiskers, the properties of strength, abrasion resistance and wave absorption and antistatic and antibacterial properties of the sheet aluminum oxide porous ceramics are improved; through using the submicron silica particles, the zirconium hydrogen phosphate and the nanometer pearl powder, the pore connectivity of the ceramic is improved, heat conduction is improved, and the binding force with metal is increased.
High-strength sheet aluminum oxide porous ceramic used for LED lamp heat dissipation and preparation method thereof
DONG ZHAOHAI (author)
2015-10-28
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2015
Sheet alumina porous ceramic for LED lamp heat dissipation and preparation method thereof
| European Patent Office | 2015
| European Patent Office | 2015
| European Patent Office | 2015
| European Patent Office | 2015