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用油酸对纤维素材料进行化:热化学修饰和结构洞察

Naji Majoudi¹, El-Houssaine Ablouh¹, Brahim Mazian²

¹Materials Science, Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660 - Hay Moulay Rachid, Benguerir 43150, Morocco.

International journal of biological macromolecules

|February 13, 2025

概括

研究人员使用油酸 (OA) 接种创造了疏水性纸张. 这种可持续的方法可以提高排水能力,而不会影响水蒸气的吸收,从而改善纸张的性能.

科学领域:

材料科学材料科学材料科学
可持续化学可持续化学
表面化学表面化学

背景情况:

纤维素纸的天然水友性限制了其在潮湿条件下使用.
开发对防水纸的环保方法是一个重大的工业挑战.

研究的目的:

开发一种可持续的热化学工艺,用于生产疏水性纤维素纸.
通过化将长链油酸 (OA) 植入纤维素表面.

主要方法:

油酸在纤维素上进行热化学接种.
使用FTIR,13C NMR,XRD,SEM和X射线纳米扫描进行表征.
通过水接触角度和表面自由能量测量来评估疏水性.
使用动态蒸汽吸附 (DVS) 和浸泡测试对水蒸气相互作用的评估.

主要成果:

在200°C进行30分钟的优化移植条件.
实现了123°的水接触角,并将表面自由能量降低到4.59mJ/m2.
尽管增强了液体水排斥力,但证明保留了水蒸气吸附能力.

结论:

油酸接种创建了一个可持续的疏水性纸面.
该过程有效地排斥液体水,同时保持蒸汽透性.
这种方法为生产功能性纤维素材料提供了可行的解决方案,用于各种应用.

关键词:

接触角度的接触角度是什么功能化的纤维素纸.在水化过程中,水化热化学压缩热化学压缩湿透性湿透性湿透性

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