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Xue-Jun Chen
Tianan Biologic Material Co., Ltd. Ningbo

　As a kind of biopolyester, PHBV is made by bacteria and can be biodegraded by bacteria and utterly decompose to carbon dioxide, water and biomass in soil or under composting condition. PHBV is also a kind of material with high biological compatibility and is a great barrier to water, gas and aroma. So there are possibilities of a wide range of applications with PHBV such as medical materials (suture, bone-nail),
films products (mulch films, shopping bags, compost bags), disposable items (pens,tableware), packaging materials (especially for food packaging), and so on.

    PHBV is made from corn, a kind of annually renewable resources. It is one of the world recognized not only bio-based but also biodegradable material. The utilization ofPHBV will help reducing the dependency on mineral resources; checking white pollution; bringing greenhouse effect under control and make a contribution to sustainable development of social economy.
　Tianan Biologic Material Co., Ltd. Ningbo is a high-tech enterprise that is the first to have accomplished the industrialization of totally biodegradable material employing biological fermentation engineering technology in China. The annual output of PHBV of our plant is 1,000 tons. Our company has been devoted to the processing techniques of PHBV. The injection molding technique is fully developed at the moment and such
products have gone into mass production. Our injection molded products include bio golf tees and disposable utensils which can be heated in a microwave oven. Blowing  molding, sheet extruding and coating techniques are ripe on the whole and we are perfecting the mass production processes. Other techniques such as film forming are being under development.

　論文來(lái)源：1st International Conference on Technology and Application of Biodegradable Polymers and Plastics,October,2004