Biodegradable films, also known as green plastics, can be decomposed by natural microorganisms and finally converted into water and carbon dioxide. Japan, the United States and Europe are strengthening the research and development of biodegradable plastics. According to the statistics of European Biodegradable Plastics Association, the global production capacity of biodegradable plastics was about 300000 tons in 2005. According to the expansion or new construction plans announced by manufacturers, it is estimated that the global production capacity will be expanded to 500000 tons in 2006-2008, and 850000 tons in 2010. IPTS (Institute forProspectiveTechnological  In the absence of government policy support, it is estimated that the production capacity in Europe will be 500000 tons in 2010, 875000 tons in 2020, 1275000 tons in 2010 and 2.2 million tons in 2020. With the support of government policies, the production capacity of biodegradable plastics can be doubled, and it is estimated that the capacity in Europe will reach 1.75 million tons in 2020, and even more in the world Up to 4.175 million tons.
 

        In terms of market demand, in 2005, the European market was about 40000-50000 metric tons, Asia was about 10000-20000 tons, and the United States was about 10000-20000 tons, with an annual growth rate of about 20-30%. At present, the market is mainly used in packaging and film, and its future application in automobile, electronics and consumer goods is expected.