| Abstract:As a new type of cushioning foam which can be completely degraded, plant fibers based foam material has great prospects in replacing foam plastics. In this study, fully degradable plant fibers based foam material was prepared by hot air drying with plant fiber as substrate and amylopectin as structural intensifier. It is of great significance to study influence of amylopectin on the structure and properties of the new foam material.The effect of amylopectin dosage on its microstructure and compression properties was studied. The results showed that by regulating the dosage of amylopectin，the pore structure of plant fibers based foam material could be controlled to achieve the requirement of its compression properties. When the dosage of amylopectin was 8%, a plant fiber-based foam material with better structure and performance could be obtained. At this time, the pore diameter of the foam material was reduced to 70.38 μm, the distribution was relatively uniform, and the anisotropy ratio was reduced to 1.26, the shape of pore was close to circle, the pore density increased to 1.47×105 pores/cm3, and the apparent density was 44.45 kg/m3, the porosity was 95.57%, the static compression performance improved, and the yield strength was about 2 times than that of the blank sample. |
