Biodegradation Studies of Attapulgite Clay filled Polyvinyl Alcohol/Modified Corn Starch Blend Films: Microbial and Enzymatic

摘要

Attapulgite clay filled polyvinyl alcohol/modified corn starch (PVOH/OCS/AT) blend films were prepared by solution casting technique. Biodegradability of the blend films were determined by the biodegradation in microbial and enzymatic degradation. The obtained results showed that the addition of attapulgite in polyvinyl alcohol/modified corn starch (PVOH/OCS) blend film has changed the biodegradability of the film in both microbial, enzymatic media. Among all the attapulgite-filled blends, PVOH/OCS/AT2 blend film shows the optimum biodegradability behavior because this blend system shows highest DED and DMD values.