METHOD FOR PRODUCING HEAT-CONDUCTIVE RESIN COMPOSITION

PROBLEM TO BE SOLVED: To provide a heat-conductive resin composition having high thermal conductivity obtained by controlling fracture loss of carbon fibers in the kneading process.SOLUTION: This method for producing the heat-conductive resin composition includes kneading a carbon fiber with a matri...

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Bibliographische Detailangaben
Hauptverfasser:	ONOE SHUHEI, SANO HIROKI, HARA HIROSHI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a heat-conductive resin composition having high thermal conductivity obtained by controlling fracture loss of carbon fibers in the kneading process.SOLUTION: This method for producing the heat-conductive resin composition includes kneading a carbon fiber with a matrix resin under maximum shear stress of 0.1-2 MPa and at melt viscosity 100-2,000 Pa s of the resin at kneading, wherein the carbon fiber satisfies following conditions: the average fiber diameter of 5-20 μm and the average fiber length of 20-500 μm observed by an optical microscope; the aspect ratio of 4-50; and the tensile strength in the fiber axis direction of 1,000 MPa or more.