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纤维素纤维的结构和特性,由基于伊米达的碳酸功能化zwithterionic液体 spun

Sachin Jadhav¹, Dhirendra Singh², Deepika Gupta³

¹Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, Maharashtra, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India; Aditya Birla Science and Technology Company Pvt Ltd, MIDC Taloja, Navi Mumbai 410206, Maharashtra, India.

Carbohydrate polymers

|November 19, 2024

概括

研究人员开发了一种新的方法,使用水性兹威特离子液 (ZIL) 溶解纤维素. 这一过程成功地产生了再生纤维素纤维,其性能与商业Lyocell相提并论,提供了可行的替代溶剂系统.

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
织工程织工程织工程

背景情况:

纤维素溶解而没有衍生是可持续材料生产的关键.
在寻找商业上可行的溶剂系统,用于将纤维素再生成薄膜和纤维方面,仍然存在挑战.
现有的方法,如离子液体和N-methyl-morpholine-N-oxide (NMMO) 有局限性.

研究的目的:

报告一种新的工艺,用于利用水性兹威特离子液 (ZIL) 再生纤维素纤维.
通过使用ZIL.用干喷湿生产的纤维素纤维的特性进行评估.
为了证明ZIL作为一个商业上可行的纤维素溶剂的潜力.

主要方法:

用纤维素制备一个11%的ZIL剂溶液.
纤维素-ZIL溶液的干喷气湿线. 纤维素-ZIL溶液的干喷气湿线.
再生纤维素纤维的机械性能和结晶性的表征.

主要成果:

使用水性兹威特离子液 (ZIL) 成功制备和制纤维素纤维.
由此产生的纤维具有与商业Lyocell相似的特性:denier (1.2-1.6),性 (3.5-4.0 gpd) 和断裂时的延伸 (8-10%).
纤维素纤维的结晶度为60%,类似于Lyocell.

结论:

水性兹维特里液 (ZILs) 是有效的溶剂,用于纤维素的溶解和再生.
使用ZIL的干喷湿方法可以生产适合工业应用的高质量的纤维素纤维.
本研究展示了使用具有商业相关机械性能的ZILs进行再生纤维素纤维线的首次演示.

关键词:

纤维素纤维素是一种纤维素.直接溶解可以直接溶解.再生纤维素纤维的再生纤维.兹维特里昂体液是一种液体.

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