Composite reinforcing material and molding material

摘要

Provided is a composite reinforcing material excellent in mechanical strength. The composite reinforcing material comprises at least graphene-like exfoliated from a graphite-based carbon material and a reinforcing material dispersed in a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H) , based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3R) = P3/(P3+P4)xlOO - (Equation 1) wherein P3 is apeak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method. Fig. 20 80 - : C'+ 3-0; 4 -- 5D 20 Tensi. Strength .40 end-ng~ Modu us 0 t - -- r - -r - - -- - - SD 0 10 20 30 40 50 Rate(SR)