Title:
CARBON MATERIAL FILLER FOR ELECTROMAGNETIC SHIELD, ELECTROMAGNETIC SHIELD MATERIAL, AND CARBON-MATERIAL-CONTAINING MOLDED BODY FOR ELECTROMAGNETIC SHIELD
Document Type and Number:
Japanese Patent JP2021161020
Kind Code:
A
Abstract:
To provide a carbon material filler for an electromagnetic shield which relates to a graphitizable carbon material having an electromagnetic shield property, and which has a lightness that could not be realized with a conventional material for an electromagnetic shield, and which enables expression of a high electromagnetic shield property.SOLUTION: There is provided a filler which is composed of a graphitizable carbon material to be mixed into a molding material in order to absorb electromagnetic waves, the carbon material filler for an electromagnetic shield satisfying (1) to (3). (1) A surface separation d002 in a "002 plane" of the graphitizable carbon material measured through X-ray diffraction measurement (XRD) is 0.338 nm or more. (2) A relative intensity ratio (A/B) value between a peak intensity (A) of the "002 plane" detected when the graphitizable carbon material is measured through X-ray diffraction measurement (XRD) and a higher peak intensity (B) that is selected from a "100 plane" and a "004 plane" is 2.5 or more and less than 27. (3) The filler is in powder form and the average particle diameter D50 is 1 μm or more and 5 mm or less.SELECTED DRAWING: None
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Inventors:
MIYANAGA TOSHIAKI
FUJI KAZUHISA
KAJIOKA NOBUYOSHI
OGAWA JUNICHI
HIRAMOTO KENJI
FUJI KAZUHISA
KAJIOKA NOBUYOSHI
OGAWA JUNICHI
HIRAMOTO KENJI
Application Number:
JP2021057699A
Publication Date:
October 11, 2021
Filing Date:
March 30, 2021
Export Citation:
Assignee:
NIPPON STEEL CHEMICAL & MAT CO LTD
MAZDA MOTOR
MAZDA MOTOR
International Classes:
C01B32/00; H05K9/00
Attorney, Agent or Firm:
Kazuya Sasaki
Eiichi Sano
Katsumi Hara
Shuji Hisamoto
Eiichi Sano
Katsumi Hara
Shuji Hisamoto