Nanobiotechnology for health-care

The water influence on thermophysical and electrical properties of composite on nanocellulose basis
Alekseev O.M.1, Andrusenko D.A.1, Vasylyuk S.V.1, Britan A.V.1, Grabovsky Yu.E.1, Zabashta Yu.F.1, Kovalchuk V.I.1, Lazarenko M.M.1, Tkachov S.Yu.1

1 Faculty of Physics, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601, Kyiv, Ukraine

E-mail: svetlanafvasylyuk@gmail.com

Nowadays wide range of new materials created on the cellulose basis is used in modern technological processes. Such implementations are based on the natural reproduction of cellulose, biocompatibility and the ability to biodegradate the latest materials on its basis, including composites. Significant influence of water on their physical properties, caused by the hydrophilicity of molecules, requires further research and clarification of its molecular mechanisms at various stages of structural organization.
We obtained the dependences of heat capacity, heat conductivity, complex dielectric constant and composite structure on the basis of native cellulose, microcrystalline cellulose and nanocellulose in wide ranges of water concentration and temperature, and we proposed molecular mechanisms of observed effects.