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发明公开
CN101353400A 高淀粉含量的可生物降解热塑性淀粉塑料的制备 无效 - 撤回

高淀粉含量的可生物降解热塑性淀粉塑料的制备
摘要：
本发明涉及一种高淀粉含量的可完全生物降解塑料的生产技术，该技术是先将天然淀粉、增塑剂和其它助剂共混，经双螺杆挤出机挤出制成热塑性淀粉颗粒。将热塑性淀粉颗粒与共混树脂、增容剂、化学引发剂和其它助剂混合，在双螺杆挤出机中，通过反应性挤出，制成高淀粉含量的可完全生物降解塑料；本发明生产设备及工艺流程简单，反应速度快，生产效率高；所制备的可完全生物降解塑料中热塑性淀粉含量可达80％，材料成本低、加工性能好，机械性能优良、具备完全可生物降解性，可直接用于制造各种包装材料、薄膜、购物袋、餐具等。
摘要（英）：

The invention relates to a production technology of a completely bio-degradable plastic with high starch content. In the technology, natural starch, a plasticizer and other addition agents are blended together, squeezed by a double-screw squeezing machine and manufactured into thermoplastic starch particles. The thermoplastic starch particles are mixed with a blended resin, a compatibilizer, a chemical initiation agent and other addition agents. In the double-screw squeezing machine, the completely bio-degradable plastic with high starch content is manufactured by reactive squeezing. The content of the thermoplastic starch in the prepared completely bio-degradable plastic can achieve 80 percent; the material cost is low; the processing performance is good; the mechanical performance is excellent; in addition, the invention is provided with the completely bio-degradable performance and can be directly used for manufacturing various packaging materials, films, shopping bags and tableware, etc.

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