Evaluation of Archaeological Bone Physical and Mechanical Properties after Treatment with Nano Paraloid

Archaeological bones are exposed to many different factors of damage as a result of some natural weathering in the burial environment. The aim of this research is to identify the most important physical, mechanical and chemical problems of such bone and to present one of the new solutions to improve its properties by using Nano applications represented in the use of Nano – paraloid dissolved in acetone at a concentration of 3 % as one of the proposed strengthening methods, Visual assessment and several analytical techniques were used for the evaluation of the selected Strengthening. The analytical techniques are transmission electron microscope (TEM), Fourier-Transform infrared Spectroscopy (FTIR), Measurement of Mechanical Properties (pressure strength) , and Measurement of physical Properties(Color Change CIE Lab, Density, Porosity and Water Absorption) , The bone samples were subjected to accelerated aging (thermal - chemical) after applying the stiffener, The results obtained from transmission electron microscopy showed that the size of nanoparticles of paraloid was between 58 and 78 nanometers. The results of measuring the pressure strength of the reinforced samples and comparing them with the standard sample (ST) (70.86 kg/cm2), where the reinforcement sample of nano-paraloid recorded (NP), the highest measurement (258.93 kg / cm2). Color change revealed gave the higher level of total color differences (ΔE), the (NP) sample was (16.45) .