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Degradable plastics product makers in Europe and America, Ningbo tianan biologic material limited company is a wonderful company. A common enterprise, can produce biodegradable plastics producers are an indispensable raw material —— PHBV (polyhydroxy butyric acid — valproate ester), and such businesses in China, it really surprise them."From the perspective of national, not only of biodegradable plastic production technology has reached the international level, and some products have been successful trend of domestic enterprises in the international market," Weng Yunxuan informed the Secretary-General of the China plastics processing industry association degradable plastics specialized Committee of the China investment."White pollution"Birth of the "green revolution"Discarded plastic "white pollution" problem is becoming increasingly serious, has time to non-solution is not available. All countries, especially Western Europe, United States, and Japan and other developed countries, restrictions on the use of disposable plastic foam packaging, the EU in recent years has been the introduction of relevant laws and regulations restricting or prohibiting the use of non-biodegradable plastic packaging.Most of the fundamental differences from the traditional petroleum-based synthetic resins, bio-degradable plastics to sunlight and carbon dioxide is the main source of raw materials for energy and carbon sources of renewable resources, such as starch and cellulose, is a means of biotechnology into a polymer of high-tech materials, its products after the drop is completely broken down into carbon dioxide and water. If the centralized recovery for composting, can also produce organic fertilizer.With its emphasis on environmental protection, many countries embarked on the research and development of biodegradable materials. Similarly, as the consumption of disposable plastic products power, since the beginning of the 80 's of the last century in China, paving the way for the research and development of biodegradable materials.Biodegradable plastics are divided into natural biodegradation biodegradation of plastics, plastics chemical synthesis of biodegradable plastic and a few broad categories.Refers to the natural polymer natural biodegradable plastics as raw materials, through a variety of molding a biodegradable plastic products made from materials, including starch, natural polymers such as cellulose, chitin, soy protein and its various derivatives and mixtures. Thermoplastic starch has been industrialization, other natural materials are still in the basic research stage. At present, realization of industrialization by Wuhan huali environment protection science and technology limited company, has an annual production capacity of 230,000 tons of production capacity.Microbial synthesis of biodegradable plastic polylactic acid (PLA), the application of polyhydroxyalkanoates (PHA). PLA is a lactic acid produced from molasses fermentation as raw material, or its Dimer by direct condensation polymerization of lactide ring-opening polymerization method and other methods of chemical synthesis. At present, Changchun Institute of applied chemistry, Chinese Academy of Sciences and Zhejiang marine joint pilot study on biodegradable plastics company limited is, product performance levels reached Cargill Dow products, now largely complete the model construction of production line of 5,000 tons.Synthesis microbiological methods such as bio-higher prices of polyester, is the difficulty in the main obstacles to widespread use of. Development of chemical synthesis method of biodegradable plastics are mainly aliphatic polyesters, former main varieties including polycaprolactone (PCL), aliphatic polycarbonate (or carbon dioxide carbon dioxide and epoxide copolymer copolymer). Used in Inner Mongolia mengxi high-tech group, is the production of biodegradable plastics by chemical synthesis. In addition, Henan tianguan group will also arise during the production of by-product carbon dioxide is also used in the production of biodegradable plastics. In addition, the Institute of physical and chemical synthesis of n-butanol ester of succinic acid is also in the process of industrialization.