Realization of the strength of carbon fibres in microplastics

Based on the model of fracture of carbon-filled plastics by breakage of fibres in stretching, the strength of CF realized in a microplastic was examined as part of the strength of fibres at their critical length. Based on an analysis of the experimental and calculated data for ENFB epoxy—phenol binders, the empirical dependence of the coefficient of realization of the strength of CF in a microplastic on the modulus of elasticity of the fibres and parameter B of the scale effect of the strength of CF was established. It was shown that the parameters of the strength scale effect and modulus of elasticity of CF have the determining effect on the strength of the microplastic.Translated from Khimicheskie Volokna, No. 1, pp. 42–45, January–February, 1995.