开发一种可生物降解的聚乙烯醇和多基酸的三酸功能化三酸的三级混合物,用于农业地应用

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Forming Micro-and Nano-Plastics from Agricultural Plastic Films for Employment in Fundamental Research Studies

Published on: July 27, 2022

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Anjana^1,2, Shristhi Rawat³, Saswata Goswami^1,2

¹Division of Chemical Engineering, Center of Innovative and Applied Bioprocessing (CIAB), Knowledge City, Sector-81, Mohali, Punjab 140306, India.

ACS omega

|July 22, 2024

概括

这项研究开发了由聚乙醇 (PVA) 和聚乙酸 (PHB) 制成的可生物降解土,以减少塑料污染. 新的生物复合材料覆盖物有效支持植物生长,并自然降解,提供可持续的农业解决方案.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
可持续农业可持续农业

背景情况:

来自农业的塑料污染是一个重大的环境问题.
聚乙醇 (PVA) 是一种可生物降解的聚合物,具有覆盖的潜力,但患有湿度敏感性.
开发有效的生物降解替代品对于可持续的农业实践至关重要.

研究的目的:

使用PVA和聚乙酸 (PHB) 制造一种新的可生物降解生物复合材料覆盖物.
提高PVA在农业土应用中的性能,特别是解决湿度敏感性.
在农业环境中评估开发的生物复合材料薄膜的性能和降解特性.

主要方法:

使用溶剂造方法合成了一个生物复合材料薄膜,使用PVA,PHB和三乙烯作为塑化剂.
描述了生物复合材料薄膜的机械,光学和表面性能 (接触角度,水蒸气传递率).
通过将薄膜应用于子中的玉米植物的土,监测植物生长和在自然条件下的薄膜降解来评估农学性能.

主要成果:

PVA-PHB生物复合材料薄膜表现出改进的机械性能,降低的光透射率和有效的阻光的能力.
表面分析显示,水性增加 (接触角度从44°转移到99°),水蒸气传递率 (WVTR) 从4.82到2.31g/h m2.2.显著降低.
生物复合材料覆盖物成功支持了玉米植物生长,在5天内表现出初始降解,并在30天后达到50-55%的降解.

结论:

开发的PVA-PHB生物复合材料提供了一个有希望的可生物降解的替代传统塑料料.
增强的性能,包括防潮和阻光,使其适合农业应用.
这项研究扩大了基于PVA的片在可持续农业和减少废物的努力中的潜在应用.

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