废弃油作为回收青路面的环保复原剂
Noemi Bardella1, Manuela Facchin2, Eleonora Fabris2
1Crossing S.r.l., Viale della Repubblica 193/b, 31100 Treviso, Italy.
Materials (Basel, Switzerland)
|April 13, 2024
概括
废食用油 (WCO) 可以转化为再生青路面 (RAP) 青的再生剂. 修改后的WCO Ester提高了的分散性和性能,为废物管理和道路建设提供了可持续的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
背景情况:
- 废食用油 (WCO) 是一个重大的环境挑战,在2020年,全球收集了超过5000万的食用油.
- 有效的处置和利用策略对于管理WCO和促进循环经济至关重要.
研究的目的:
- 开发一种创新的方法,使WCO作为用于再生青路面 (RAP) 中使用的青50/70的再生剂.
- 将WCO化学修饰为和胺,并评估它们作为青可持续添加剂的潜力.
主要方法:
- 废食用油 (WCO) 和化WCO (HWCO) 通过转化和化反应进行了修饰.
- 描述包括核磁共振,点和沸点的确定.
- 青春剂的效率通过使用青分散剂试验和海特豪斯参数进行了评估.
主要成果:
- 只有 WCO Ester 达到 RAP 冷混合青中再生剂所需的点 (≤0 °C).
- 与25%重量%的WCO乙醇 (修改为2-乙醇) 混合的,与未经修改的相比,在n-heptane中显示出显著增强的分散能力.
- 世贸组织以基改性混合物的海特豪斯参数几乎是单独的三倍.
结论:
- 世贸组织衍生的 Ester 是在再生青路面 (RAP) 中老化青的有效再生剂.
- 使用WCO Ester可提高青的分散性和质性,为可持续的建筑实践做出贡献.
- 这种方法为循环经济利用废食用油提供了一个有前途的途径.
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