超水性聚氨/活性生物炭复合材料与聚甲基氧涂层,用于高效的有机液体吸收
Rafik Elarslene Dra1, Badra Mahida2, Malika Medjahdi3
1Energy and Process Engineering Department, Djillali Liabes University of Sidi Bel Abbes, Sidi Bel Abbes 22000, Algeria.
Materials (Basel, Switzerland)
|January 28, 2026
概括
这项研究开发了使用活性生物炭 (AC) 和聚二甲基 (PDMS) 的增强型聚氨 (PU) 泡,以有效地去除液态有机污染物. 混合PU-AC/PDMS复合材料显示出卓越的吸附能力和可用于油水分离的重复使用性.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 聚合物化学 聚合物化学
背景情况:
- 聚氨 (PU) 泡被广泛使用,但需要加强有效的液态有机污染物补救.
- 开发可持续和高效的吸附材料对于应对环境污染挑战至关重要.
研究的目的:
- 创建结构增强和高度疏水的聚氨泡,以有效地修复液态有机污染物.
- 调查海洋藻和聚甲基 (PDMS) 涂层中的活性生物炭 (AC) 对PU泡特性和性能的影响.
主要方法:
- 用AC和PDMS对PU泡进行修改,以创建原始的PU,PU-AC,PU/PDMS和PU-AC/PDMS复合系统.
- 使用扫描电子显微镜 (SEM),富里埃变换红外光谱 (FTIR) 和热重力测量分析 (TGA) 的表征.
- 使用石油衍生油和疏水性有机液体,评估可湿性和吸附行为.
主要成果:
- 与PU (420 ± 80 μm) 相比,SEM显示PU-AC/PDMS的孔径减少 (360 ± 85 μm),PDMS保留了开放细胞形态.
- 表面的疏水性显著增加,从88.53° (PU) 增加到148.25° (PU-AC/PDMS).
- PU-AC/PDMS复合物表现出最高的吸附能力 (油类为44-56g/g,溶剂为35g/g) 和可重复使用性.
结论:
- 结合AC和PDMS显著提高了PU泡的疏水性,热稳定性和吸附能力.
- 开发的混合PU-AC/PDMS复合材料是用于油水分离和有机污染物补救的有希望的可持续材料.
- 该研究表明,从可再生资源中创建先进的功能材料的可行策略,用于环境应用.
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