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1.Degradable plastics are generally divided into four categories: photodegradable plastics, biodegradable plastics, light and biodegradable plastics, and water-degradable plastics. Among them, biodegradable plastics have received more and more attention with the development of modern biotechnology, and have become a hot spot in international research and development. Traditional plastics such as polyethylene have poor degradation properties and poor biocompatibility, causing serious "white pollution". Carbonyl biodegradable plastics can be defined as petroleum-based plastics containing degradable additives. Currently, among bio-based materials, the fastest growing is bio-based plastics. This material with great development potential is expected to replace traditional polymers in many application fields. In recent years, the increasing shortage of petroleum resources has caused the price of plastic raw materials to soar. Especially as the sustainable development strategy is deeply rooted in the hearts of the people, it has become more prominent to solve the coordinated development of plastic materials and environmental protection.
2.Biodegradable plastics can only be used to make some sporting goods (fishing thread, golf tees, etc.), materials for agriculture, forestry, and fisheries (films, moisturizing materials, seedbed materials, etc.), garbage bags, and sanitary products (disposable diapers, etc.). Its new uses are very broad, such as making cosmetic containers, toothbrushes, cushioning materials, packaging materials, shopping bags, disposable gloves, etc. If the safety problem is solved, it can also be used to make food containers. As a new polymer functional material, biodegradable plastics can also be applied to the fields of free-radical packaging materials for fertilizers and pesticides, and packaging for medical supplies. In the future, it can also be used in non-plastic fields such as adhesives and printing inks.