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Preparation and characterization of starch-based composite films reinforced by corn and wheat hulls

机译：玉米和小麦船体加固淀粉基复合薄膜的制备与表征

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摘要

Biodegradable films, with starch as a matrix, were developed and reinforced with wheat and corn hulls. The effect of the particle size of the filler on the microstructure and mechanical and barrier properties of starch-based films was investigated. We observed that the addition of hulls enhanced the modulus, tensile strength, and impact strength of the starch matrix at the expense of its elongation. The water-vapor transmission rate results show that corn starch was more efficient in reducing the water-vapor permeability than wheat hulls. Scanning electron microscopy observations indicated that the compatibility of both fillers with the matrix was quite good; this was expected because all of the components used in this study were hydrophilic and exhibited polar behavior. Optical microscopy and X-ray diffraction observations indicated that the processing conditions did not affect the crystalline and geometric structures of the hulls. Because all of the components used in this study were from food resources, the films could also be used for edible packaging. (C) 2017 Wiley Periodicals, Inc.
机译：用淀粉作为基质的可生物降解的薄膜是用小麦和玉米壳增强的。研究了填料粒度对淀粉基薄膜微观结构和机械和阻隔性能的影响。我们观察到船体的添加增强了淀粉基质的模量，拉伸强度，以延伸的牺牲。水蒸气传动速率结果表明，玉米淀粉在降低水蒸气渗透率而不是小麦船体方面更有效。扫描电子显微镜观察表明，两种填料与基质的相容性相当不错;这是预期的，因为本研究中使用的所有组分都是亲水的，并且表现出极性的行为。光学显微镜和X射线衍射观察结果表明，加工条件不影响船体的晶体和几何结构。由于本研究中使用的所有组分来自食品资源，因此薄膜也可用于可食用包装。 （c）2017 Wiley期刊，Inc。

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  • 来源
    《Journal of Applied Polymer Science》 |2017年第32期|共9页
  • 作者

    Ali Amjad; Yu Long; Liu Hongsheng; Khalid Saud; Meng Linghan; Chen Ling;

  • 作者单位

    South China Univ Technol Ctr Polymer Renewable Resources Sch Food Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Ctr Polymer Renewable Resources Sch Food Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Ctr Polymer Renewable Resources Sch Food Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Ctr Polymer Renewable Resources Sch Food Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Ctr Polymer Renewable Resources Sch Food Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Ctr Polymer Renewable Resources Sch Food Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 高分子化合物工业（高聚物工业）;
  • 关键词

    biodegradable; biopolymers and renewable polymers; films; microscopy; morphology;

    机译：可生物降解;生物聚合物和可再生聚合物;薄膜;显微镜;形态学;

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