Preparation and characterization of nanocellulose from Eucommia ulmoides twigs
Using the annual Eucommia wood cellulose as raw material.The ternary eutectic of choline chloride/lactic acid/p-toluenesulfonic acid monohydrate(molar ratio 2∶12∶1)was used as a solvent,com-bined with micro-fluidization mechanical treatment,to prepare Eucommia nanocellulose(CNC).The phys-ical and chemical properties of CNC were analyzed and characterized using various techniques including Fourier transform infrared spectroscopy(FTIR),X-ray diffraction(XRD),scanning electron microscopy(SEM),and thermogravimetry(TGA).The research findings reveal that CNC appears in the form of short rods,with an average length of(163.95±6.72)nm and a diameter of(7.63±0.61)nm.The aspect ratio is 20.18,and the yield is 73.84％.The Zeta potential in suspension is(-20.50±0.72)mV.The CNC crystal form exhibits of cellulose Ⅱ,with a crystallinity of 62.18％.Furthermore,CNC demonstrates favorable thermal stability,with Tmax=359 ℃.The successful preparation of CNC expands the potential application areas of Eucommia twig wood and enhances the economic benefits of the Eucommia leaf forest planting model.
Eucommia ulmoidesdeep eutectic solventmicro-fluidizationnanocelluloseleaf forest model
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