**5. Conclusions**

In this work, significant improvements to both the elastic modulus and the tensile strength of CFRP were achieved through high ERFG particle loadings in the polymer matrix of CFRP. The low surface tension of C-F groups in the fluorographite precursor material, the epoxy monomer functionalization, and the small size, collectively result in high loading of well-dispersed exfoliated ERFG in epoxy resin. Furthermore, the loading of ERFG is high enough to enhance other properties of CFRP composite. The through-plane thermal conductivity of CFRP was increased by ~60% and the hydrogen permeability of CFRP was decreased by a factor of ~81. This work provides a universal method to reduce the cost of CFRPs by 1) decreasing the weight of CFRP parts through improved mechanical properties, and by 2) reducing system complexity by having CFRP parts multiple desirable properties which would ordinarily require separate parts made from different materials. The approach reported in our work represents a viable strategy for low cost parts made with CFRP for applications in automotive, sporting goods and energy sectors.

*Mechanically Improved and Multifunctional CFRP Enabled by Resins with High Concentrations… DOI: http://dx.doi.org/10.5772/intechopen.100141*
