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再生细菌纤维素纤维的再生纤维

Francisco A G Soares Silva¹, Frank Meister², Fernando Dourado¹

¹CEB- Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; LABBELS-Associate Laboratory, 4710-057 Braga, Portugal.

International journal of biological macromolecules

|October 9, 2023

概括

细菌纤维素 (BC) 为织纤维提供了一个可持续的替代品. 与不同聚合度的BC混合增强了纤维的刚性并减少了延长,优于传统的Lyocell纤维.

科学领域:

材料科学材料科学材料科学
生物技术是生物技术.
织工程织工程织工程

背景情况:

全球棉花短缺需要为人造纤维素纤维 (MMCF) 提供可持续的替代品.
森林红纤维素生物质的利用对MMCF产生重大环境影响.
细菌纤维素 (BC),一种外聚糖,为织品提供了一个有希望的可持续材料.

研究的目的:

研究细菌纤维素 (BC) 在织应用中的潜力.
通过结合低度和高度聚合 (DP) 的方法,提高纤维素纤维的机械性能.BC.
评估基于BC的纤维丝的可旋转性和机械性能.

主要方法:

在N-methylmorpholine-N-oxide (NMMO) 中溶解具有不同DP的BC (BCneat:927,BCdep:634,BCblend:814).
在特定度 (BCneat: 9.0%,BCdep: 12.2%,BCblend: 10.5%) 下研究BC dopes的质行为和旋转能力.
进行连续线以生产BC丝,并评估它们的机械性能.

主要成果:

所有的BC dopes都表现出可旋转性.
连续线产生了与Lyocell相比的机械性能.
与不同DP混合的BC纸 (BCblend) 导致纤维的刚度高 (56.4 CN.tex-1),延伸度低 (8.29%) 比同质样本.

结论:

细菌纤维素是织工业的一个可行的可持续替代品.
将BC与不同程度的聚合物混合显著提高了纤维的机械性能.
基于BC的纤维提供了更好的刚性和更少的延伸,性能优于常规材料.

关键词:

细菌纤维素的细菌纤维素.聚合化的程度.机械性质机械性质这是NMMO的NMMO.

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