Preparation and Performance of A Starch/Straw Fiber Cushioning Packing Material

A starch/straw fiber cushioning packing material substituting for EPS were prepared by compression molding.The density and mechanical properties of the new material were influenced by different mixture ratios of raw materials,which were researched by orthogonal experiment method,moreover,the main factors and optimization of mixture ratios were obtained.The results showed that the density of the new material was minimum with addition of 60% by weight of water;the compression resistance was best with addition of 25% by weight of straw fibers.The mechanical property of the new material in contrast with EPS was shown by way of static compression experiment,furthermore,the difference of microstructure between them was observed and compared by microscope.Bring forward the causations arising the differences and improved methods.