Natural Polymer–Carbon Nanotube Composites Prepared by Gamma Radiation for the Removal of Some Radionuclides

Abstract

"Natural Polymer–Carbon Nanotube Composites Prepared by Gamma Radiation for the Removal of some Radionuclides" Multiwalled carbon nanotubes (MWCNTs) have high Young’s modulus, low density, and excellent electrical and thermal properties, which make them ideal fillers for polymer composites. Homogeneous dispersion of MWCNTs in a polymer matrix plays a crucial role in the preparation of polymer composites based on interfacial interactions between MWCNTs and the polymer matrix. The addition of a small amount of MWCNTs strongly improves the electrical, thermal, mechanical and chemical properties of the composites. The work carried out in the present thesis based on synthesis, structural analysis of natural polymers/multiwalled carbon nanotubes composite for removal of 134, 60Co, and 152+154Eu radionuclides. This thesis comprises three parts in addition to references. Chapter One: Introduction. This chapter includes an introduction about composite, nanocomposite, and nanofiller. In addition, this chapter includes properties, synthesis methods, dispersion methods and application of CNTs, especially in the green nanocomposite. This chapter includes also the modification processes of CNTs by polymer matrix to form nanocomposites. Polymer matrix, grafting copolymerization and template techniques are discussed. This introduction also includes brief accounts on the origin, classification and treatment method of radioactive wastes This chapter includes reviews of natural polymer carbon nanotubes composites like chitosan/CNTs, alginate/CNTs, and starch/CNTs composites.