When they were exposed to compost degradation However,less reduction in these properties was found when they were subject to UV irradiation. Uv-Vis spectrometer analysis supported the results of UV irradiation.Fracture surfaces of tensile test samples with and without compost degradation or UV irradiation were analysed by using scanning electron microscopy (SEM). SEM images revealed that there was a good BC particle dispersion in the composites through extrusion and injection moulding processes if the particle content was below 7.5 wt%