Kohlenstofffasern und Verfahren zur Herstellung davon

Details

Veröffentlichungs-Nr.

EP4060101

Aktenzeichen

EP22154787

Anmeldetag

2. Februar 2022

Veröffentlichung

18. Februar 2026

Erteilung

18. Februar 2026

Rechtsraum

EP

IPC

D01F9/24

Abstract

A carbon fiber wherein an average fiber diameter of a single fiber is in a range of 3 to 10 µm, and an average value of an intensity ratio (D/G) of a D peak to a G peak in a Raman spectrum in a cross section perpendicular to a fiber axis direction of the single fiber is 0.90 or less in a region inside a circle having a diameter of 1 µm and centered at a center of gravity of the cross section of the single fiber, and is 0.90 or less in a region up to 1 µm inside from an outer periphery of the cross section of the single fiber, wherein the D peak is observed at around 1360 cm<-1> and derived from a defect in a graphite structure and the G peak is observed at around 1590 cm<-1> and derived from the graphite structure.

Anmelder

Firmen

Kabushiki Kaisha Toyota Chuo Kenkyusho
TOYOTA JIDOSHA KABUSHIKI KAISHA

Land

🇯🇵 Japan

Fachgebiete