...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Polymers for advanced technologies >Eco-friendly materials produced by blown-film extrusion as potential active food packaging
【24h】

Eco-friendly materials produced by blown-film extrusion as potential active food packaging

机译：通过吹膜挤出生产的环保材料作为潜在的活性食品包装

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Starch/polyester blends are potential substitutes for non-degradable materials. Active food packaging was produced by the blown-extrusion of starch/poly (butylene adipate-co-terephthalate) (PBAT) blends added to alpha-tocopherol (alpha-TOC). The films showed adequate stability and processability by the blown-extrusion method and were converted into an essentially amorphous and homogeneous material. The transparency and water vapor permeability of the films increased with the addition of alpha-TOC. The antioxidant interfered in the organization of the polymeric matrix, which was confirmed by SEM images, resulting in lower tensile strength and elongation at break, with no interference due to the alpha-TOC concentration. The inclusion of alpha-TOC did not influence the thermal stability, and it increased the crystallinity of the samples. The formulation with the lowest concentrations of the antioxidant (T0.25) presented an almost complete release of alpha-TOC, proving the efficiency of the films as active packaging. The complete degradation of the materials was proved by evaluating the composting of the films. The eco-friendly films are promising materials for active food packaging.
机译：淀粉/聚酯共混物是不可降解材料的潜在替代品。活性食品包装是通过将淀粉/聚己二酸丁二醇酯-对苯二甲酸乙二醇酯（PBAT）混合物添加到α-生育酚（α-TOC）中进行吹塑挤出而制成的。通过吹塑挤出法，薄膜显示出足够的稳定性和可加工性，并转化为基本无定形且均匀的材料。随着α-TOC的加入，薄膜的透明度和透湿性增加。SEM图像证实，抗氧剂干扰了聚合物基体的组织，导致拉伸强度和断裂伸长率降低，且由于α-TOC浓度没有干扰。α-TOC的加入不影响热稳定性，并增加了样品的结晶度。含有最低浓度抗氧化剂（T0.25）的配方几乎完全释放出α-TOC，证明了薄膜作为活性包装的效率。通过评估薄膜的堆肥过程，证明材料完全降解。环保薄膜是一种很有前途的食品活性包装材料。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号