Testing methods, principles, cycles, and scope of application for the degradation performance of different degradable plastics
2023-06-07
The recycling and treatment of plastic waste has become a hot topic, but it is difficult to completely recycle plastic. How to manage and dispose of waste plastic is a global concern. Plastic recycling technology includes material recovery (mechanical recovery, chemical or monomer recovery, biological or organic recovery) and energy recovery (thermal energy, steam energy or electric energy as alternatives to fossil fuels and other fuel resources). In addition, some plastics that are difficult to recycle, such as fishing gear, agricultural covers, and water-soluble polymers, often leak into the environment from closed garbage disposal recycling systems; Some products used in the ocean are made of plastic (such as fishing gear), which can sometimes be lost or intentionally placed in the marine environment; Products or packaging materials sent to composting equipment should be biodegradable as much as possible. The use of biodegradable plastics is a valuable option for recycling (biological or organic recycling). Therefore, using biodegradable materials is one of the effective ways to solve such environmental problems. It is important to determine the potential biodegradability of these materials and obtain indicators of their biodegradability in the natural environment.
