Boron nitride powder, heat dissipation sheet, and method for producing heat dissipation sheet

This boron nitride powder contains at least agglomerated boron nitride particles in which hexagonal boron nitride primary particles are agglomerated, and the particle size distribution of the boron nitride powder has at least a first maximum point (MAX1), a second maximum point (MAX2) having a parti...

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Bibliographic Details
Main Authors WADA KOSUKE, FUJI KIYOTAKA
Format Patent
LanguageChinese
English
Published 29.08.2023
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:This boron nitride powder contains at least agglomerated boron nitride particles in which hexagonal boron nitride primary particles are agglomerated, and the particle size distribution of the boron nitride powder has at least a first maximum point (MAX1), a second maximum point (MAX2) having a particle size larger than the first maximum point, and a third maximum point (MAX3) having a particle size larger than the second maximum point. The particle diameter of the first maximum point is 0.4 [mu] m or more and less than 10 [mu] m, the particle diameter of the second maximum point is 10 [mu] m or more and less than 40 [mu] m, and the particle diameter of the third maximum point is 40 [mu] m or more and 110 [mu] m or less. A heat dissipation sheet according to the present invention is obtained by molding a thermally conductive resin composition containing a resin and the boron nitride powder according to the present invention. A method for producing a heat dissipation sheet according to the present invention com
Bibliography:Application Number: CN202180088577