响应表面方法 优化 catanionic 表面活性剂混合物在去墨塑料废弃物包装中的反应表面方法
Shafeeq Ahmed Syed Ali1, I M S K Ilankoon1, Lian Zhang2
1Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor Darul Ehsan 47500, Malaysia; Waste and Critical Metals Sustainability Research Group, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor Darul Ehsan 47500, Malaysia.
Journal of hazardous materials
|October 29, 2025
概括
这项研究探讨了用于塑料脱墨的catanionic表面活性剂混合物,发现富含cationic的混合物 (Mix 2: 1) 实现了100%的效率. 优化六甲基三甲基化物 (CTAB) 建议用于工业塑料回收.
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:
- 印刷油墨阻碍了塑料回收的质量和经济可行性.
- 单一表面活性剂系统通常用于塑料去墨.
- 表面活性剂混合物提供了潜力,但对于去漆应用仍然基本上未被探索.
研究的目的:
- 研究catanionic表面活性剂混合物的有效性,特别是六甲基三甲基化物 (CTAB) - 二甲基硫酸盐 (SDS) 系统,用于塑料去墨.
- 通过响应表面方法来优化除墨参数,包括温度,pH值和表面活性剂度.
- 评估不同表面活性剂混合比例的性能,并将其与单一表面活性剂系统进行比较.
主要方法:
- 使用响应表面方法来优化温度 (25-55°C),pH (10-12) 和表面活性剂度 (1-25×CMC).
- 研究了各种比例的CTAB和SDS的catanionic表面活性剂混合物.
- 进行了动态建模,以确定除墨反应顺序和速率常数.
主要成果:
- 富含酸盐的混合物 (Mix 2:1) 达到高达100%的去墨效率,与单独使用CTAB相比.
- 富含阳离子的混合物 (Mix 1:2) 显示出较差的去墨性能.
- 确定pH值是影响脱墨效率的最重要因素,具有强烈的二次和相互作用效应.
- 预热表面活性剂溶液提高了34.49%的效率.
结论:
- 基表面活性剂混合物,特别是富含基的配方,显示出有效的塑料去墨的协同潜力.
- 优化的CTAB (25°C,pH12,16.5×CMC) 是工业规模脱墨的可行选择.
- 未来的研究应该集中在生物基表面活性剂,优化固体-液体比率和综合废水处理,以加强循环经济倡议.
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