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Adsorption of xyloglucan and cellulose nanocrystals on natural fibres for the creation of hierarchically structured fibres.
Carbohydrate Polymers ( IF 10.7 ) Pub Date : 2020-07-03 , DOI: 10.1016/j.carbpol.2020.116713
Estelle Doineau 1 , Guillaume Bauer 2 , Léo Ensenlaz 3 , Bruno Novales 4 , Cécile Sillard 3 , Jean-Charles Bénézet 5 , Julien Bras 3 , Bernard Cathala 2 , Nicolas Le Moigne 5
Affiliation  

Green treatment of natural fibres is a major issue in paper, textile and biocomposites industries to design innovative and eco-friendly products. In this work, hierarchical structuring of flax woven fabrics by the adsorption of xyloglucan (XG) and cellulose nanocrystals (CNC) is studied. Indeed, CNC have high mechanical properties, high specific surface area and great potential for functionalization. The adsorption of XG and CNC has been investigated in terms of localization by confocal and scanning electron microscopy (SEM) and quantification through adsorption isotherms. Adhesion force measurements have also been performed by Atomic Force Microscopy (AFM). XG and CNC are homogeneously adsorbed on flax fabric and adsorption isotherms reach plateau values around 20 mg /gfibres for both. The pre-adsorption of XG on flax fabric influences the amount of adsorbed CNC in the high concentrations and also creates entanglements and strong interactions between XG and CNC with the formation of an extensible network.



中文翻译:

木葡聚糖和纤维素纳米晶体在天然纤维上的吸附,用于产生分层结构的纤维。

天然纤维的绿色处理是造纸,纺织和生物复合材料行业设计创新和环保产品的主要问题。在这项工作中,研究了通过木葡聚糖(XG)和纤维素纳米晶体(CNC)的吸附来对亚麻机织织物进行分层结构化。实际上,CNC具有很高的机械性能,很高的比表面积和很大的功能化潜力。XG和CNC的吸附已通过共聚焦和扫描电子显微镜(SEM)进行了定位研究,并通过吸附等温线进行了定量研究。粘附力测量也已通过原子力显微镜(AFM)进行。XG和CNC均匀地吸附在亚麻织物上,吸附等温线达到20 mg / g纤维的平稳值对彼此而言。XG在亚麻织物上的预吸附会影响高浓度下CNC的吸附量,还会在XG和CNC之间形成缠结和强烈的相互作用,形成可扩展的网络。

更新日期:2020-07-21
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