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Canna~Fangled Abstracts

Hemp-based all-cellulose composites through ionic liquid promoted controllable dissolution and structural control.

By March 20, 2020April 9th, 2020No Comments
2020 May 1;235:116027. doi: 10.1016/j.carbpol.2020.116027. Epub 2020 Feb 17.

Abstract

All-cellulose composites (ACC) were effectively prepared by a low energy consumption strategy. The ionic liquid of 1-butyl-3-methylimidazolium chloride (BMIMCl) was used to immerse hemp fabric before hot-pressing process at a relative low temperature. The tensile strength and modulus of prepared ACC reached 81.1 MPa and 1.50 GPa, respectively. The dissolution mechanism of ACC by BMIMCl was successfully observed by the cooperation of optical microscope and polarizing microscope. Scanning electron microscope (SEM), X-ray diffraction (XRD), thermal gravimetric analysis (TGA) and mechanical testing were carried out to investigate the effect of hot-pressing temperature on the properties of ACC samples. ACC sample exhibited the highest mechanical performance at hot-pressing temperature of 120 °C. This work provided a simple and promising pathway for industrial application of high performance and environmental-friendly all-cellulose composites.

KEYWORDS: All-cellulose composites, Ionic liquids, Mechanical properties, Structure-Property relations

PMID: 32122518
DOI: 10.1016/j.carbpol.2020.116027

Conflict of interest statement

Declaration of Competing Interest The authors report no conflicts of interest. The authors are responsible for the content and writing of this article. There are no prior oral presentation and original source of the material.

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