There are currently three so-called environmentally friendly plastic bags: degradable plastic bags, Biodegradable Plastic Bags, and compostable plastic bags.
Everyone thinks that biodegradability means biodegradation. In fact, it is not. Only if it can be decomposed into carbon dioxide and water can it protect the environment. Degradable plastic bag: The polymer in the plastic bag is partially or completely damaged due to ultraviolet radiation, oxidation corrosion, and biological corrosion, which means performance changes, fading, cracking and fragmentation. Biodegradable plastic bag: The biochemical process in which the organic matter in the plastic bag is completely or partially converted into water, carbon dioxide/methane, energy and new biomass under the action of microorganisms.