The biodegradable function of plastics products is one of the important and indispensable means to control “white pollution”. The main application direction of biodegradable plastics products is to replace the traditional plastics products that are lightweight and not easy to recycle. For a long time, the industry has focused on the “biodegradation” ability of biodegradable plastics products, expecting it to biodegrade in compost and soil to achieve green environmental protection in the true sense.