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首页> 外文期刊>Journal of polymers and the environment >Bio-Based Plastic Based on Ozonated Cassava Starch Produced by Extrusion
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Bio-Based Plastic Based on Ozonated Cassava Starch Produced by Extrusion

机译：Bio-Based Plastic Based on Ozonated Cassava Starch Produced by Extrusion

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Abstract Green methods of modification, such as ozone, can bring new functionalities to starch. In this study, starch-based plastics were produced by extrusion, using cassava starch ozonated with a gas flow of 1?L?min?1 at a concentration of 41?mg O3?L?1 resulting in doses of 78.9 and 145.3?mg O3/g starch. Pre-mixes (starch, glycerol, and water) were processed in a co-rotating twin-screw extruder. The main results showed that ozonated sheet produced with the treatment of 78.9?mg O3/g starch resulted in an increase in Young Modulus by 43 and a decrease in hydrophilicity by 37 in comparison to the native one. Conversely, treatment with 145.3?mg O3/g starch did not increase the bio-based plastic mechanical properties or surface characteristics, showing a specific behavior tendency between ozonation and extrusion processes. The ozonation of starch showed to be an alternative for producing by extrusion bio-based plastics with enhanced properties, by selecting adequate processing conditions.Graphical Abstract

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