化学处理和铜涂层可持续生物复合材料的生命周期评估
Vikas Yadav1, Shweta Singh2, Sarbjit Singh1
1Department of Mechanical Engineering, Punjab Engineering College, Chandigarh 160012, India.
The Science of the total environment
|July 4, 2024
概括
天然纤维复合材料的生命周期评估显示,制造过程中的能源消耗推动了全球变暖排放. 原始天然纤维比处理过的版本提供了更好的强度,尽管处理增强了复合材料的强度.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 对可再生纤维复合材料的需求不断增长.
- 天然纤维比玻璃纤维具有优势 (密度较低,成本较低).
- 自然纤维的强度较低,但可以通过治疗来增强.
研究的目的:
- 进行原始,经过化学处理和涂铜天然纤维 (包和香) 的增强复合材料的生命周期评估 (LCA).
- 比较从摇篮到门的环境排放.
- 评估这些复合材料的适用性.
主要方法:
- 生命周期评估 (LCA) 的方法.
- 在SimaPro软件中使用的ReCiPe H中点方法.
- 详细的库存分析从纤维提取到复合材料的形成.
主要成果:
- 制造过程中的能源消耗是全球变暖潜力的首要驱动力.
- 化学和铜涂层复合材料显示电力对全球变暖的贡献略高于原材料复合材料.
- 聚乳酸 (PLA) 是所有复合材料类型排放的第二大贡献者.
- 原始天然纤维样本与经过处理的样本相比,具有更高的纤维强度.
结论:
- 制造业的能源消耗对天然纤维复合材料的环境足迹产生重大影响.
- 虽然处理提高了复合材料的强度,但原料纤维表现出更好的内在强度.
- 需要进一步优化制造工艺,以减少对环境的影响.
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