制备开放细胞长链分支聚烯泡,以吸收油
Chenhui Li1,2, Jirun Hu3, Haikuo Yan4
1School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
ACS omega
|January 1, 2024
概括
可重复使用的吸油剂是使用长链分支聚烯和多烯弹性体 (LCBPP/POE) 混合物制成的. 这种新型泡具有很高的吸油能力和出色的可重复使用性,可以有效地清理漏油.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 环境工程 环境工程
背景情况:
- 开发有效和可重复使用的吸油剂对于减轻石油泄漏对环境造成的破坏至关重要.
- 传统的吸收剂往往缺乏足够的容量,可重复使用性或必要的疏水性-脂性平衡,以有效地回收油.
研究的目的:
- 从长链分支聚烯和多烯弹性体 (LCBPP/POE) 混合物中制备开放细胞泡,用于可重复使用的吸油应用.
- 优化超临界的二氧化碳泡过程,以提高泡性能和油脂吸收能力.
主要方法:
- 采用两步批量快速降压方法,使用超临界的二氧化碳进行发泡.
- 优化LCBPP/POE比率,泡温度和压力,以实现高开放细胞含量和扩张比率.
- 使用扫描电子显微镜和差异扫描热量计来描述泡形态.
- 通过接触角度和油/水分离试验评估了疏水性质和脂性质.
- 通过吸收和回收测试评估油的吸收能力和周期性性能.
主要成果:
- 达到最大开放细胞含量为97.6%和扩张比为48.
- 与纯LCBPP泡相比,LCBPP/POE泡显示出更高的吸油能力.
- 泡表现出极好的柔性和可回收性,在10个循环后保持99.3%的容量.
- 证实了高开放细胞含量,疏水性-脂性特征和强大的可重复使用性.
结论:
- 开发的LCBPP/POE开放细胞泡由于其优越的油吸能力和可重复使用性,对油污清理非常有希望.
- 两步超临界二氧化碳泡方法有效地产生了具有高开放细胞含量的一致的小细胞泡.
- 混合物的特性使得可持续有效地回收石油,为环境修复提供可持续的解决方案.
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