有机溶解的基于氨酸的电纳米纤维:稳定的组成和形态洞察力
Paula Martínez Cánovas1, Salvatore Cito2, Francisco Medina1
1Department of Chemical Engineering, Universitat Rovira i Virgili, Tarragona E-43007, Spain.
概括
研究人员开发了使用软木和硬木有机溶解质 (OL) 与聚乙烯氧化物 (PEO) 的稳定电方法,用于质纳米纤维. 这项工作优化了可持续纤维中的素含量,并提出了一种纤维形成机制.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 生物质的价值化 生物质的价值化
背景情况:
- 来自林氏纤维素生物质的可再生资源 - - 氨酸 (Lignin) 被探索为一种可持续的替代石油基聚合物,如聚烯二 (PAN) 的替代品.
- 电是一种从素生产纳米纤维的关键技术,为先进的材料应用提供了潜力.
研究的目的:
- 通过使用柔软木 (SOL) 和硬木 (HOL) 的有机溶解木质素 (OL) 与聚乙烯氧化物 (PEO) 来识别稳定的电组合物.
- 通过最大限度地提高宁含量,同时最大限度地降低PEO结合剂度来优化纤维生产.
- 研究素来源和PEO分子量对纤维特性和电稳定性的影响.
主要方法:
- 具有不同素来源 (SOL,HOL) 和PEO度/分子量的OL/PEO溶液的电.
- 泰勒的高速视频成像,以监测电旋稳定性.
- 解决方案的风湿学分析,以了解纤维形成机制.
- 聚焦离子束场发射扫描电子显微镜 (FIB-FESEM) 用于表征内部纤维结构.
主要成果:
- 确定了PEO的SOL和HOL的稳定电条件.
- 成功生产了含有高素的纤维,其直径为亚微米.
- 与软木木质素 (SOL) 相比,硬木木质素 (HOL) 导致纤维直径系统地更小.
- 在所有测试组合中,在基于素的纤维中观察到内部空隙.
结论:
- 使用优化的OL/PEO组合物,可以实现基于素的纳米纤维的强大的电.
- 这些发现为控制基于素来源的素纤维形态和直径提供了洞察力.
- 提出了一种纤维形成机制用于氨酸/PEO电,有助于生物质价值化策略.
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