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Study of Starch based Thermoplastic Biodegradable Plastics

Xie Bi

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Abstract

Biodegradable plastic was prepared with dry process modified starch,the reinforcer PX and solubilizing agent EAA.The modified starch was plasticized by compound plasticizer 〔 V (glycerol)∶ V (ethylene glycol)=1∶2〕.The result shows that the amount of starch in the plastic can reach 50%～70%,and other ingredients are all biodegradable.It has excellent mechanical property,and its biodegradation ratio can exceed 50% in the soil after 90 days.

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What this paper is about

Biodegradable plastic was prepared with dry process modified starch,the reinforcer PX and solubilizing agent EAA.The modified starch was plasticized by compound plasticizer 〔 V (glycerol)∶ V (ethylene glycol)=1∶2〕.The result shows that the amount of starch in the plastic can reach 50%～70%,and other ingredients are all biodegradable.It has excellent mechanical property,and its biodegradation ratio can exceed 50% in the soil after 90 days.

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Available abstract

Biodegradable plastic was prepared with dry process modified starch,the reinforcer PX and solubilizing agent EAA.The modified starch was plasticized by compound plasticizer 〔 V (glycerol)∶ V (ethylene glycol)=1∶2〕.The result shows that the amount of starch in the plastic can reach 50%～70%,and other ingredients are all biodegradable.It has excellent mechanical property,and its biodegradation ratio can exceed 50% in the soil after 90 days.

Key concepts: Plasticizer, Starch, Biodegradation, Biodegradable plastic, Thermoplastic, Glycerol, Ethylene glycol, Biodegradable polymer

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