In the past ten years, plastics have penetrated into all walks of life with their convenience and entered millions of households. At the same time, they have brought huge environmental pollution. Various international and domestic environmental protection policies, laws and regulations, and bills to protect the environment have been introduced one after another, proving that the demand for biodegradable plastics is gradually entering formalization and industrialization, and the development of fully biodegradable plastics is entering a golden period of vigorous development.
Completely biodegradable plastics: Completely biodegradable plastics are mainly made of natural polymers (such as starch, cellulose, chitin) or agricultural and sideline products fermented by microorganisms or synthesized into biodegradable polymers, such as thermoplastic starch plastics, aliphatic polyesters, polylactic acid, starch/polyvinyl alcohol, etc. Are all of these types of plastics.
The plastics industry is a large industry. In 2003, the national output of plastic products reached 16.5053 million tons, including 811,000 tons of agricultural film, 3.2697 million tons of packaging film, and 3.12 million tons of catering utensils. The plastic particle market is about 11 million tons, with an output value of about 192 billion yuan/year, and an annual profit of more than 38 billion yuan.With the continuous enhancement of environmental awareness in our country and the improvement of environmental protection laws, fully biodegradable plastics will gradually replace ordinary plastic products.