AbstractThe data on preparation, structure and morphology of cellulose-based composites, those have oxide component as filler are reported. It is shown that depending on raw materials origin and processing degree cellulose samples reveal various degree of crystallinity (in the range 64 – 77 %). Obtained composites reveal even lesser crystallinity degree ≈ 57%. Detailed analysis of surface morphology was performed with using of scanning electronic microscopy. It was found the studied samples contains plates with sizes ~ 20 – 50 μ those consist of close-packed grains of 5-10 μ size. In the case of composites some oxide nanoparticles (sizes up to 200 nm) were incorporated into grains of microcrystalline cellulose. It was established the luminescence properties of cellulose are dependent on type of plant raw materials as well as on processing methods. These factors have influence on luminescence intensity but profile of photoluminescence bands remains practically unchanged. Under excitation in 337-532 nm spectral region the composites that contain K2Eu(PO4)(MoO4) and LaVO4:Sm are characterized by intensive visible photoluminescence. Spectra of these PL depend on excitation wavelength.
W.W. Tassi, G Nancy, Z. Hongl, “Nanocellulose-based translucent diffuser for optoelectronic device applications with dramatic improvement of light coupling,” Applied materials and interfaces, vol. 7, pp. 26860 - 26864, 2015.
X Wang, K.Z. Gao, Z.Q. Shao, X.Q. Peng, X. Wu, F.J. Wang, “Layer-by-layer assembled hybrid multilayer thin film electrodes based on transparent cellulose nanofibres paper for flexible supercapacitors applications,” J. Power Sources, vol. 245 pp.148–155, 2014.
A.C.M. Moraes, P.F. Andrade, A.F. Faria, M.B. Simoes, F.C.C.S. Salomao, E.B. Barros, M.D. Goncalves, O.L. Alves, “Fabrication of transparent and ultraviolet shielding composite films based on graphene oxide and cellulose acetate,” Carbohydr. Polym., vol. 123, pp. 217–227, 2015.
H.Z. Song, L.W. Zheng, “Nanocomposte films based on cellulose reinforced with nano-SiO2: microstructure, hydrophilicity, thermal stability, and mechanical properties,” Cellulose, vol. 20, pp. 1737–1746, 2013.
P.S. Khiabani, A.H. Soeriyadi, P.J. Reece, J.J. Gooding, “Paper-Based Sensor for Monitoring Sun Exposure,” ACS Sens., vol 1, pp. 775−780, 2016.
Yu Bian, Beihai He, Junrong Li, “Preparation of cellulose-based fluorescent materials using Zinc sulphide quantum dot-decorated graphene by a one-step hydrothermal method,” Cellulose, vol. 23, pp. 2363-2373, 2016.
P. Kulpinski, A. Erdman, T. Grzyb, S. Lis, “Luminescent cellulose fibers modified with cerium fluoride doped with terbium particles.” Polymer composites, vol 37, pp. 153-160, 2016.
T.G. Rials, W.G. Glasser, “Thermal and dynamic mechanical properties of hydroxypropyl cellulose Films,” J. Appl. Polym. Science., vol. 36, pp.749-758, 1988.
M. Nedielko, S. Hamamda, O. Alekseev, V. Chornii, M. Dashevskii, M. Lazarenko, K. Kovalov, S.G. Nedilko, S. Tkachov, S. Revo, V. Scherbatskyi, “Mechanical, dielectric, and spectroscopic characteristics of “micro/nanocellulose + oxide” composites,” Nanoscale Research Letters, vol. 12, pp. 98, 2017.
V.A. Barbash, M.G. Karakutsa., I.V. Trembus, O.V. Yaschenko, “Development of technology of microcrystalline cellulose from hemp fibres,” Eastern-European J. of Enterprise Tech., vol. 3/6, pp. 51-56, 2016.
V.A. Barbash, Yu.M. Nagorna, “Technology of the microcrystalline cellulose production from non-wood vegetable raw materials (in Ukrainian),” Naukovi visti NTU “KPI”», vol 2, pp. 119-124, 2015.