纤维素微纤维和纳米纤维的花,由奇多-西兰复合体诱导
Gabriela Adriana Bastida1,2, Quim Tarrés2, Roberto Aguado2
1Institute of Cellulosic Technology, Faculty of Chemical Engineering (FIQ-CONICET), National University of the Litoral, Santiago del Estero 2654, Santa Fe S3000AOJ, Argentina.
Nanomaterials (Basel, Switzerland)
|September 9, 2023
概括
由西兰和奇托桑制成的天然聚电解质复合物 (PEC) 能够有效地花纤维素微纤维和纳米纤维. 在PEC中较低的兰比率提高了性能,在动态和静态条件下需要最小的剂量以获得有效的花.
科学领域:
- 材料科学 材料科学 材料科学
- 合体和表面化学
- 生物聚合物科学 生物聚合物科学
背景情况:
- 纤维素微纤维 (CMF) 和纳米纤维 (CNF) 是重要的生物材料.
- 有效的花是加工CMF和CNF的关键.
- 天然多电解质复合物 (PEC) 提供可持续的花化解决方案.
研究的目的:
- 为了研究西兰基托桑PECs的风湿性质.
- 使用PEC阐明CMF和CNF的花化机制.
- 为了确定最佳的PEC成分和剂量,以获得有效的花.
主要方法:
- 聚电解质溶液的表征 (粘度,c*,类型, ζ-潜力,大小).
- 通过粘度测量进行动态花研究.
- 静态花分析 (凝点,花大小, ζ-潜在).
主要成果:
- 富含西兰的PEC表现出更高的粘度,尺寸和z电位,临界度较低.
- 所有PEC解决方案都显示了非牛顿式剪切稀释行为.
- 在低PEC剂量 (2-6 mg/g纤维) 时,可以实现CMF和CNF的有效花.
- 在最小的凝点和最大的花大小时发生了最佳的花.
- 与CMF悬浮相比,CNF悬浮需要更高的PEC剂量.
结论:
- 克西兰-奇托桑PEC是纤维素纳米材料的高效花剂.
- PEC的组成显著影响了质行为和花效果.
- 低剂量的PEC足以产生有效的花,这表明它们在可持续材料加工中的潜力.
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