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基于多乳酸/多甲/粉的生物复合材料托盘具有增强的可堆肥性.

Manoj Kumar Dhal1, Kshitij Madhu1, Arnab Banerjee2

  • 1Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; Centre for Sustainable Polymers, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India.

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概括

这项研究开发了用粉增强的聚乳酸/聚烯酸 (PLA/PCL) 生物复合材料. 30%的料复合物显示出最佳的性能,在约90天内生物降解,提供了一个可持续的替代品.

关键词:
这是生物复合材料.生物聚合物堆肥是一种生物聚合物.聚卡普罗拉克 (Polycaprolactone) 是一种多重的产物.聚乳酸是一种多乳酸.粉 粉 粉 粉

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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
  • 环境科学 环境科学

背景情况:

  • 基于石油的聚合物造成严重的污染和环境危害.
  • 可生物降解的聚合物和生物复合材料为传统塑料提供了可持续的替代品.
  • 开发具有成本效益和环保的材料对于减少对环境的影响至关重要.

研究的目的:

  • 开发和描述用粉增强的聚乳酸/聚烯酸 (PLA/PCL) 生物复合材料.
  • 评估这些新型生物复合材料的机械性能,热稳定性和生物降解性.
  • 评估这些可持续材料的商业应用潜力.

主要方法:

  • 使用融挤出技术制造了具有不同粉含量 (10-40%) 的PLA/PCL生物复合材料.
  • 拉伸测试,场辐射扫描电子显微镜 (FESEM),差分扫描热度计 (DSC) 和热重力计分析 (TGA) 用于表征.
  • 在模拟的堆肥环境中评估了生物降解性,并通过试点级生产证明了可扩展性.

主要成果:

  • 成功生产了高达40%的粉生物复合材料.
  • 含有30%粉的复合材料表现出最佳性能:拉力强度为26.5MPa,拉力应变为4.4%,降解温度为320°C.
  • 添加粉显著减少了降解滞后阶段,在大约90天内实现了完全降解.
  • 30%的粉配方成功地扩大到5公斤的批量,并加工成餐具.

结论:

  • 用粉增强的PLA/PCL生物复合材料为传统聚合物提供了一个有希望的可持续替代品.
  • 30%的粉复合材料表现出机械性能,热稳定性和快速生物降解性的良好平衡.
  • 这些生物复合材料在餐具等产品中具有商业应用的潜力,有助于提供负担得起和可持续的材料解决方案.