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冷等离子治疗对用不同氧化剂修饰纤维素的影响

Denis Mihaela Panaitescu¹, Sorin Ionuţ Vizireanu², Gabriela Mădălina Oprică^1,3

¹National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania.

Materials (Basel, Switzerland)

|March 13, 2025

概括

这项研究引入了一种环保的冷等离子体方法,使用氧化剂修改微晶纤维素 (MCC). 等离子处理增强氧化,可以创建纳米纤维,提供新的材料功能.

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
表面科学是一门学科.

背景情况:

纤维素是一种可再生的生物聚合物,在医学和工业中具有广泛的应用.
现有的纤维素改造方法在简单性,成本和环境影响方面面临挑战.
开发可持续和高效的纤维素改造技术对于先进的材料开发至关重要.

研究的目的:

提出一种新的,廉价的,环保的方法,用于化学修改微晶纤维素 (MCC).
研究沉浸冷等离子体处理和氧化剂对MCC的协同效应.
探索这种方法在产生功能化的纤维素材料,包括纳米纤维的潜力.

主要方法:

在氧化剂 (H2O2,NaClO,NaIO4) 的存在下,用沉浸冷等离子体处理的微晶纤维素 (MCC) 水性悬浮液.
使用富里埃变换红外 (FTIR) 谱学,X射线光电子谱学 (XPS),热重力学分析 (TGA),X射线衍射 (XRD) 和扫描电子显微镜 (SEM) 的表征.

主要成果:

冷血治疗显著加剧了H2O2,NaClO和NaIO4对MCC的氧化作用.
血辅助甲 (NaClO) 处理实现了最高的MCC氧化水平.
这些处理导致不同程度的MCC化学降解和改变的晶体/形态结构.
扫描电子显微镜 (SEM) 揭示了MCC的碎片化和除成纳米纤维.

结论:

浸泡冷等离子处理为MCC的化学修饰提供了一种有效和环保的方法.
综合性血氧化剂方法提供了对纤维素功能和形态的可调节控制.
这种技术显示出生产基于纤维素的纳米纤维用于各种应用的前景.

关键词:

大气中的冷等离子体.动脉逆转动脉除.微晶纤维素的微晶纤维素.这些纳米纤维是纳米纤维.氧化剂是一种氧化剂.

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