Biodegradable composites made from bagasse fiber and biodegradable resin were prepared
and the biodegradation were investigated by the soil burial test in terms of the effects of fiber content,
alkali treatment to bagasse fiber and different soil. The biodegradable resin showed some extent
biodegradation. The addition of bagasse fiber caused the acceleration of weight loss of the fiber
reinforced composites in comparison with the neat biodegradable resin. The weight loss of the
composites increased with the increase in the fiber content, which could attribute to the preferential
degradation of bagasse fiber and the resin around the fiber. However there was no significant
difference in weight loss between untreated and alkali treated fiber composites. Furthermore, it is
noted that the weight loss drastically increased in the case of the composites buried in the
microorganism enriched soil. This results from the increase of bacteria and fungi in soil. The
photographs and SEM micrographs showed the degradation of the resin and the composites.