material with straw fiber and starch as the main raw materials had been synthesized. The orthogonal experiment was used to study
the impact of mass ratio of fiber to starch, content of plasticizer, active agent, and foaming agent on the compressive strength of
cushion material. Infrared spectrometer and theory of water’s bridge-connection were used to study the hydroxyl groups among
the fiber and starch.The results were demonstrated as follows: the mass ratio of fiber to starch had the most significant impact on
compressive strength. When the contents of the plasticizer, the foaming agent, and the active agent were, respectively, 12%, 0.1%,
and 0.3% and the mass ratio of fiber to starch was 2 : 5, the compressive strength was the best up to 0.94MPa.Meanwhile, with the
plasticizer content and themass ratio of fiber to starch increasing, the cushioning coefficient of thematerial decreased first and then
increased. Comparing the cushion and rebound performance of this material with others, the biomass cushion packaging material
could be an ideal substitute of plastic packagingmaterials