Starch has been a major source for preparing biodegradable plastics because of its inherent biodegradability

ready availability and relatively low cost. The research and application of starch plastics have been developed rapidly in recent years. The research interest is focused on improving the performance (mechanical and water resistance etc). Nowadays

inorganic or mineral fillers are widely used in composite materials to improve its performance. In this paper

the progress of the effects of inorganic substances on mechanical properties of starch plastics is reviewed in recent years. According to their different categories

we mainly reviewed the effect of inorganic substances on the mechanical properties of starch plastics

including oxide

hydroxide carbonate

silicate and phosphate salt etc. At last

the latest research progress

problems

and the trend in the future are also proposed.