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作为塑料废物管理替代品,用于食品包装的植物性薄膜:土豆和大麻粉案例

Luna Valentina Angulo Arias¹, Viviane de Souza Silva¹, Jorge Miguel Magalhães Vieira²

¹School of Agricultural Engineering, University of Campinas, Campinas 13083-875, SP, Brazil.

|September 14, 2024

概括

可持续的食品包装至关重要. 大麻和土豆粉薄膜为塑料提供了环保的替代品,在包装应用中显示出有前途的机械和热性能.

科学领域:

材料科学材料科学材料科学
食品科学食品科学食品科学
环境科学环境科学

背景情况:

塑料包装废弃物带来了重大的环境挑战.
食品包装行业迫切需要可持续的替代品.
基于粉的薄膜提供了一个可生物降解的选择,以减少塑料污染.

研究的目的:

调查麻和土豆粉薄膜作为可持续的食品包装材料.
描述这些粉膜的物理,物理化学和形态特性.
评估它们替代传统塑料包装的潜力.

主要方法:

使用造方法制作电影.
使用中央复合设计 (CCRD) 来优化配方.
进行了包括机械测试,热分析 (DSC) 和形态分析 (SEM,XRD) 在内的全面表征.

主要成果:

麻和土豆粉薄膜均表现出高抗拉强度 (高达32.6MPa) 和半晶体结构.
薄膜具有较低的水蒸气透性和中度溶解性,与低密度聚乙烯相美.
合适的玻璃过渡温度 (116.36119.35°C) 证实了包装的热稳定性.
大麻粉薄膜 (C4-15) 显示出卓越的透明度和表面均性.

结论:

来自麻和马的粉薄膜是食品包装的可行,可持续的替代品.
它们的性能与食品包装盖等应用的要求保持一致.
需要进一步的研究来改善热降解耐受性,以便在更广泛的热处理中使用.
这些片有助于减少对塑料的依赖和环境浪费.

关键词:

生物聚合物是一种生物聚合物.可食用的电影.塑料污染塑料污染可持续性可持续性的可持续性

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