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標題: Composition Optimization of Poly(vinyl alcohol)-/Cornstarch-Blended Biodegradable Composite Using Response Surface Methodology
作者: Chen, Y.D.
Peng, J.Y.
Lui, W.B.
關鍵字: biodegradable;amylase;glycerol;composite;optimization;mechanical-properties;extrusion-cooking;thermomechanical properties;chemical modification;cassava starch;alcohol blends;films;water;degradation;foams
Project: Journal of Applied Polymer Science
期刊/報告no:: Journal of Applied Polymer Science, Volume 113, Issue 1, Page(s) 258-264.
Response surface methodology Was Used to analyze the effect of amylase level (X(1)) and glycerol level (X(2)) on the objective [water solubility index (WSI), water absorption index (WAI), and Max. loading] attributes of a poly(vinyl alcohol)-/cornstarch-blended composite. A rotable central-composite design (CCD) was used to develop models for the objective responses. The experiments were run at die temperature 100 degrees C with a feed rate of 25 g/min and a screw speed of 35 rpm. Responses were most affected by changes in the amylase level (X(1)) and to a lesser extent by glycerol level (X(2)). Individual contour plots of the different responses were overlaid, and regions meeting the optimum WSI of 3.03 (%), WAT of 5.08 (g gel/g dry wt), and Max. loading of 29.36 (N) were identified at the amylase level of 2.8 (mL) and the glycerol level of 92.2 (mL), respectively. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 113: 258-264, 2009
ISSN: 0021-8995
DOI: 10.1002/app.29557
Appears in Collections:生物產業機電工程學系

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