The Effect of Doping Rubber with Carbon on the Lattice Constants and Elasticity

الملخص

The rubber elasticity is very important for a wide variety of applications in industry. This requires searching for efficient available techniques for controlling its elasticity. One of the most effecient techniques is the doping. Four samples were prepared by doping rubber with CO2 using different concentrations of carbon (10%, 20%, 40% and 50%). The aim of this work is to measure the effect of the doping on the elasticity of the rubber using the Young's modulus experiment by means of the experimental and analytical methods. And also to measure the lattice constants. The nano size of the crystals (which is known also as the average lattice constants), the d-spacing, and the density, were measured using x-ray diffraction apparatus. The results for this doping show that, the increase of the concentration of the samples increases the young's modulus, the d-spacing between the atoms, and the density of the samples. But this results also indicate that the increase of the concentration of the samples decreases its crystal nano size.