| 纳米SiO2改性玉米淀粉/聚乙烯醇复合薄膜研究 |
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| 引用本文： | 贾云芝,陈志周,迟建. 纳米SiO2改性玉米淀粉/聚乙烯醇复合薄膜研究[J]. 中国食品学报, 2012, 12(1): 59-64 |
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| 作者姓名： | 贾云芝 陈志周 迟建 |
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| 作者单位： | 河北农业大学食品科技学院 河北保定 071000 |
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| 基金项目： | 河北省教育厅项目(2008467) |
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| 摘 要： | 以薄膜拉伸强度、断裂伸长率、透光率和吸水率为主要指标,通过单因素试验和正交试验研究纳米SiO2改性玉米淀粉/聚乙烯醇复合薄膜的工艺条件,以改善玉米淀粉/聚乙烯醇复合薄膜的物理性能。试验结果表明:纳米SiO2含量,分散剂种类及含量,膜液pH对膜的性能均有影响。适宜的工艺参数为:纳米SiO2最佳含量2.0%,最佳分散剂聚丙烯酰胺含量1.5%,膜液最佳pH 5.0。
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| 关 键 词： | 纳米SiO2 玉米淀粉 分散剂 工艺条件 |
The Study on Corn Starch / Polyvinyl Alcohol Composite Films Modified by Nano-SiO2 |
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| Jia Yunzhi , Chen Zhizhou , Chi Jian. The Study on Corn Starch / Polyvinyl Alcohol Composite Films Modified by Nano-SiO2[J]. Journal of Chinese Institute of Food Science and Technology, 2012, 12(1): 59-64 |
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| Authors: | Jia Yunzhi Chen Zhizhou Chi Jian |
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| Affiliation: | Jia Yunzhi Chen Zhizhou* Chi Jian(College of Food Science and Technology,Hebei Agriculture University,Baoding 071000,Hebei) |
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| Abstract: | To improve the physical properties,the technological conditions of corn starch and polyvinyl alcohol composite film modified by nano-SiO2 are studied through single-factor experiments and orthogonal test,using tensile strength,break age elongation,transmittance and water absorption rate as indexes.The experimental results showed that the concentration of nano-SiO2,variety and concentration of dispersant and pH of film liquid all can affect the properties of the films.The suitable process parameters: the optimum concentration of nano-SiO2 was 2.0%;the best dispersant was polyacrylamide,and its optimal concentration was 1.5%;the best pH of film liquid was 5.0. |
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| Keywords: | nano-SiO2 corn starch dispersant technological condition |
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