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National Chung Hsing University Institutional Repository - NCHUIR > 農業暨自然資源學院 > 生物產業機電工程學系 > 依資料類型分類 > 期刊論文 >  Effects of alpha-Amylase and Glycerol Levels on the Composition Optimization of Poly(beta-hydroxybutyrate-co-valerate)/Starch Blended Biodegradable Resin Analyzed with Response Surface Methodology

Please use this identifier to cite or link to this item: http://nchuir.lib.nchu.edu.tw/handle/309270000/125961

標題: Effects of alpha-Amylase and Glycerol Levels on the Composition Optimization of Poly(beta-hydroxybutyrate-co-valerate)/Starch Blended Biodegradable Resin Analyzed with Response Surface Methodology
作者: Cheng, Wen-Yen;Peng, Jinchyau;Lui, Wai-Bun
Contributors: 國立中興大學生物產業機電工程學系
National Chung Hsing University,Department of Bio-industrial Mechatronics Engineering
Miao-zhen Luo
關鍵字: additives;biodegradable;extrusion;mechanical-properties;extrusion-cooking;thermomechanical properties;chemical modification;poly(vinyl alcohol);cassava starch;degradability;degradation;films;water
日期: 2011-6
Issue Date: 2012-10-19 14:23:54 (UTC+8)
摘要: Response surface methodology was used to analyze the effects of the enzyme level (X(2)) and glycerol level (X(1)) on objective attributes [water solubility index (WSI), water absorption index (WAI), and maximum loading (Y(3))] of a cornstarch/poly(beta-hydroxybutyrate-co-valerate) blended composite. A rotatable central composite design was used to develop models for the objective responses. The experiments were run at barrel temperatures of 160, 160, 165, and 165 degrees C, with a screw speed of 40 rpm and complete feeding (filling ratio 1). Responses were most affected by changes in X(2) and to a lesser extent by X(1). Individual contour plots of the different responses were overlaid, and regions meeting the optimal WSI of 8.73%, WAI of 3.94 g of gel/g of dry weight, and Y(3) of 304.17 N were established at an X(2) of 5.43 g and an X(1) of 120.79 mL. These predicted values for the optimal process conditions were in good agreement with the experimental data. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 120: 2571-2578, 2011
Relation: Journal of Applied Polymer Science, Volume 120, Issue 5, Page(s) 2571-2578.
Appears in Collections:[依資料類型分類] 期刊論文

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