In recent ten years, plastic has penetrated into all walks of life with its convenience and entered millions of households, while bringing huge environmental pollution. Various international and domestic environmental protection policies copyright, laws and regulations, and bills to protect the environment have been introduced one after another, proving that the demand for biodegradable plastic is gradually going into formalization and industrialization, and the development of completely biodegradable plastic is entering a golden period of vigorous development.
Completely biodegradable plastics: Completely biodegradable plastics are mainly made from natural polymers (such as starch, cellulose, chitin) or agricultural by-products through microbial fermentation or synthesis of biodegradable polymers, such as thermoplastic starch plastics, aliphatic polyesters, polylactic acid, starch/polyvinyl alcohol, etc. are all such plastics.
Plastic industry is a big industry, in 2003 the national output of plastic products reached 16,505,300 tons, including 811,000 tons of agricultural film, 3,269,700 tons of packaging film, 3,120,000 tons of food and beverage utensils, the plastic pellet market is about 11 million tons, the output value is about 192 billion yuan / year, the annual profit is more than 38 billion yuan. With the increasing awareness of environmental protection in China and the increasing improvement of environmental protection laws, completely biodegradable plastics will gradually replace ordinary plastic products.