New Nanocellulose Processing Abstract Publishes Before December Article
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The U.S. National Library of Medicine National Institutes of Health (Washington, D.C., USA) published an online summarized abstract late this past month sampling information found in a brand new study being completed in time for a December publication of the full article and explanation of the process in the group's Nanoscale Letters - a printed edition scheduled to release additional details in two months.
The development of the nanomaterials with the advanced functional characteristics is said to be a challenging task because of the growing demand in the market for the optoelectronic devices, biodegradable plastics, and materials for energy saving and energy storage. Nanocellulose is comprised of the nanosized cellulose particles, properties of which depend on characteristics of plant raw materials as well as methods of nanocellulose preparation.
In this study, the effect of the mechanochemical treatment of bleached softwood sulfate pulp on the optical and mechanical properties of nanocellulose films was assessed. It was established that the method of subsequent grinding, acid hydrolysis, and ultrasound treatment of cellulose generated films with significant transparency in the visible spectral range (up to 78% at 600 nm), high Young’s modulus (up to 8.8 GPa), and tensile strength (up to 88 MPa) increased ordering of the packing of the cellulose macromolecules.
Morphological characterization was done using the dynamic light scattering (DLS) analyzer and transmission electron microscopy (TEM). The nanocellulose particles had an average diameter of 15–30 nm and a high aspect ratio in the range 120–150.
The crystallinity was increased with successive treatments as shown by the X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) analysis. The thermal degradation behavior of cellulose samples was explored by thermal gravimetric analysis (TGA).
Scientific work was listed as being done at the National Technical University of Ukraine "Kyiv Polytechnic Institute" (Kyiv, Ukraine) with additional work done by 3L.V. Pisarzhevsky Institute of Physical Chemistry of the National Academy of Sciences of Ukraine, also located within the same city. The following names were listed as those of six researchers involved with the findings: Barbash VA, Yaschenko OV, Alushkin SV, Kondratyuk AS, Posudievsky OY, and Koshechko VG.
