Preparation and characterization of Vigna radiata (Linn.) Wilczek starch/PVA composite films
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摘要: 采用流延法,制备一种含绿豆淀粉与聚乙烯醇(PVA)复合膜,并对其性能进行评价。采用单因素实验研究了绿豆淀粉与PVA比例、交联剂、增塑剂等因素对膜性能的影响,并利用正交实验法对绿豆淀粉与PVA质量比、增塑剂用量和交联剂用量进行的优化。结果表明,以绿豆淀粉∶PVA质量比、甘油和乙二醛的质量分数分别为7∶3(g/g)、20%、8%制备的膜的拉伸强度、断裂伸长率、透光率最佳,分别为(17.3±0.25)MPa、112%±2.15%、28.2%±0.23%。Abstract: The preparation process of Vigna radiata ( Linn.) Wilczek starch ( VWS) /polyvinyl alcohol ( PVA) composite films were introduced and the properties of the film were investigated.This blend film of VWS/PVA was prepared by solution mixing.The mechanical properties of the film were investigated by film forming conditions included the contents of PVA, plasticizers and cross-linkers.Using m ( VWS) : m ( PVA) , content of plasticizer and cross-linker as factors, orthogonal experiments were conducted.The results showed the best film forming technology was 7∶ 3 m ( VWS) ∶ m ( PVA) , 20% glycerol and 8% glyoxal, by which the tensile strength, elongation at break and optical properties of the film was ( 17.3 ± 0.25) MPa, 112% ± 2.15% and28.2% ± 0.23%.The VWS/PVA composite films prepared at the optimum condition had potential application for packaging film and agriculture.
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Keywords:
- Vigna radiata (Linn.) Wilczek starch /
- PVA /
- composite film /
- mechanical properties /
- biopolymer
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[1] Tharanathan R N.Biodegradable films and composite coatings:Past, present and future[J].Trends in Food Science&Technology, 2003, 14 (3) , 71-79.
[2] 梁敏, 王羽, 宋树鑫, 等.生物可降解高分子材料在食品包装中的应用[J].塑料工业, 2015, 43 (10) :1-4. [3] 刘幸幸, 王家俊, 刘海龙, 等.壳聚糖/大豆分离蛋白复合包装膜的制备与表征[J].包装工程, 2012, 33 (3) :46-50. [4] 陈晓义, 胡丽娜, 管勇佳, 等.超声波改性马铃薯淀粉可降解性包装膜的制备研究[J].食品工业科技, 2012 (1) :311-313. [5] 李荣荣, 王素珍, 岳雪, 等.卡拉胶植物淀粉复合膜制备及其相关性能研究[J].食品工业科技, 2016, 37 (11) :253-258. [6] 姬娜, 熊柳, 卜祥辉, 等.可食性绿豆淀粉膜制作工艺的研究[J].中国粮油学报, 2012, 27 (1) :103-106. [7] 张艳艳, 葛昊, 林昕呈, 等.纤维素/PVA复合膜的制备及表征[J].塑料工业, 2016, 44 (8) :142-145. [8] LóPEZ O V, VERSINO F, VILLAR M A, et al.Agroindustrial residue from starch extraction of Pachyrhizus ahipa as filler of thermoplastic corn starch films[J].Carbohydrate Polymers, 2015, 134:324-332.
[9] CANO A, FORTUNATI E, CHAFER M, et al.Properties and ageing behaviour of pea starch films as affected byblend with poly (vinyl alcohol) [J].Food Hydrocolloids, 2015 (48) :84-93.
[10] SANYANG M L, SAPUAN S M, JAWAID M, et al.Effect of Plasticizer Type and Concentration on Tensile, Thermal andBarrier Properties of Biodegradable Films Based on Sugar Palm (Arenga pinnata) Starch[J].Polymers, 2015, 7 (6) :1106-1124.
[11] ZHAO G H, Liu Y, Fang C L, et al.Water resistance, mechanical properties and biodegradability of methylatedcornstarch/poly (vinyl alcohol) blend film[J].Polymer Degradation and Stability, 2006 (91) :703-711.
[12] ORTEGA-TORO R, CONTRERAS J, TALENS P, et al.Physical and structural properties and thermal behaviour of starch-poly (ε-caprolactone) blend films for food packaging[J].Food Packaging&Shelf Life, 2015 (5) :10-20.
[13] RAY D, ROY P, SENGUPTA S, et al.A study of dynamic mechanical and thermal behavior of starch/poly (vinylalcohol) based films[J].Journal of Polymers and the Environment, 2009, 17 (1) :49-55.
[14] HAQ M A, JAFRI F A, HASNAIN A.Effects of plasticizers on sorption and optical properties of gum cordia based edible film[J].Journal of Food Science and Technology, 2016, 53 (6) :2606-2613.
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