一种新且可持续的方法,通过物理闪电爆炸有效地修改棉花材料,使用SCF-CO2作为介质
Ze Pan1, Chong Cai1, Jia-Jie Long1
1College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China; National scientific research base for waterless coloration and finishing with supercritical fluid (China Textile Engineering Society), Soochow University, Suzhou 215123, China; Jiangsu Engineering Research Center of Textile Dyeing and Printing for Energy Conservation, Discharge Reduction and Cleaner Production(ERC), Soochow University, Suzhou 215123, China.
International journal of biological macromolecules
|October 17, 2024
概括
使用次临界或超临界二氧化碳 (sub-或SCF-CO2) 的闪电爆炸环保修饰棉纤维. 这种方法显著提高了色彩和保持水分,同时保持了关键的物理性质.
科学领域:
- 材料科学 材料科学 材料科学
- 织工程 织工程 织工程
- 绿色化学 绿色化学
背景情况:
- 传统的棉花纤维修饰通常依赖于化学方法,但存在环境问题.
- 改善棉纤维的功能性质,如染料吸收和保持水分,对于织应用至关重要.
- 探索可持续的物理改造技术对于环保的材料加工至关重要.
研究的目的:
- 引入一种新的,环保的快爆炸方法,使用次临界或超临界二氧化碳 (sub-或SCF-CO2) 来修改天然棉纤维.
- 研究这种方法对棉纤维结构和功能特性的影响.
- 评估子或SCF-CO2快爆炸的潜力,作为化学处理的可持续替代方案.
主要方法:
- 棉纤维使用闪爆技术与次临界或超临界二氧化碳 (sub-或SCF-CO2) 进行了修改.
- 描述涉及扫描电子显微镜 (SEM),孔径分析,核磁共振光谱 (1H NMR),里埃变换红外光谱 (FT-IR) 和能量分散式X射线光谱 (EDS).
- 评估的关键性质包括着色性能,保留水分,微纳米值,热性质和抗拉强度.
主要成果:
- 亚或SCF-CO2闪爆方法显著提高了棉纤维的着色性能71.1%,水分保留率提高了1001.2%.
- SEM和多孔性分析揭示了微孔和裂的形成,增加了纤维表面积,毛孔体积和尺寸.
- 光谱分析表明,键断裂,产生自由基团,从而促进了增强的染料吸收和保持水分.
结论:
- 使用亚或SCF-CO2的闪爆是一种高效和环保的方法,可以增强棉纤维的功能性质.
- 物理修改过程对热稳定性和拉伸强度等关键性质的影响最小.
- 这种方法为改造天然纤维和其他材料的传统化学处理提供了一个有希望的,可持续的替代方案.
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