The increasing use of air cushions in transport packaging brings increased environmental damage due to discarded packaging. A possible solution is to replace petroleum-based polymers with dimer acid polyamide. This work studied the qualities of dimer acid polyamide films with montmorillonite (MMT) addition. The layer structure of MMT and the heterogeneous nucleation effect augment the crystal content of the γ-crystal phase. The oxygen permeability and thermal stability of the film improve as the MMT content is increased, while optical properties decline. The mechanical properties of the film are also affected. Finite-element analysis was used to assess how long air cushions made from dimer acid polyamide/MMT film can last. The results show that dimer acid polyamide/MMT film can fully meet the requirements of air cushions for short-term transportation.

中文翻译：

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挑战气垫的二聚酸聚酰胺/蒙脱石生物基薄膜

运输包装中越来越多地使用气垫，因废弃包装而增加了对环境的破坏。一种可能的解决方案是用二聚酸聚酰胺代替石油基聚合物。这项工作研究了添加蒙脱石 (MMT) 的二聚酸聚酰胺薄膜的质量。MMT 的层结构和异相成核效应增加了 γ 晶相的晶体含量。随着MMT含量的增加，薄膜的透氧性和热稳定性提高，而光学性能下降。薄膜的机械性能也会受到影响。有限元分析用于评估由二聚酸聚酰胺/MMT 薄膜制成的气垫可以持续多长时间。