| Abstract:Biomass plastic materials are prepared from plants or other biological materials as the main matrix, such as polylactic acid, starch, polyhydroxyalkanoate, polycaprolactone, etc. They have the advantages of being environmentally friendly, resource-saving, and degradable, and can be applied in the research fields of medicine, microelectronics, and agriculture, making them one of the potential materials to replace petroleum-based plastic materials. At present, as the performance of biomass plastic materials, such as mechanical strength or water resistance, still has a large gap with petroleum-based plastics, they are usually doped or modified with composite materials to improve their overall performance. However, it will have a certain impact on its degradation process. This paper summarizes the different raw material compositions of biomass plastic materials based on their soil-embedded degradation, photocatalytic degradation, marine condition degradation and enzyme degradation tests, to elaborate the degradation effect of the materials and evaluate their degradation performance. The degradation pathways of biomass plastic materials are also summarized to provide experimental support for the environmental characteristics of biomass plastic materials. |