M.A. Thesis:

Nano Kampyvzyt resin produced Apo CuFe204 someone uses magnetic nanoparticles coated with cooking Sylsykazhl group and kinetics of physical and chemical properties of

Epoxy resins have been used very extendedly as an engineering plastic due to Their unique mechanical, electrical and thermal properties. There are different types of curing agents where the properties of cured resin deponed on the curing systems. Which ever types of curing systems used they all cause the molecules of epoxy resin to crosslink together. In preparing epoxy resin/ CuFe2O4 nanocomposites, usually two fundamental issues are: first spread The CuFe2O4 in the epoxy matrix is difficult, because the CuFe2O4 are spontaneous aggregation and are not distribution, and second, the very weak adhesion between the CuFe2O4 ad the epoxy matrix, can be influenced the effect of strengthening of CuFe2O4 . Surface functionalization of CuFe2O4 with side chains that are capable of covalent bonding with the polymer matrix can be resolved two basic problems in the preparation of nanocomposite of epoxy resin/ CuFe2O4 .In first stage of this project, the CuFe2O4 were epoxy- functionalized ( E- CuFe2O4 ) with chemical method . at each stage the synthesized compound was characterized using FT-IR technique. Epoxy nanocomposites sample were prepared by mixed pf epoxy resin based on bis phenol A with different percentages of E- CuFe2O4 (1 , 5, 10, 15, 20 % ) . Ultrasonic techniques was used to disperse the nanoparticles and produce a completeiy homogeny uniform mixture. The optimum ratio of the reacting components ( 5%) was investigated by total enthalpy of the curing reaction from differential scanning calorimetery (DSC) thermograms. The kinetics of the curing reaction for epoxy nanocomposite system with 4,4'- diamin diphenyl solphone (DDS) as a curing agent was studied by means of a DSC non- isothermal techniques. The Kinetic parameters such as activation energy, pre- exponential factor, rate constant and reaction orders and also thermodynamic parameters of curing reaction were obtained fom DSC thermogram data and with use different kinetics model. The thermal and chemical resistance of cured resin was also investigated. It was found that sample. Which cured with DDS, hed better resistance to thermal oxidation than DDS+ E+CuFe2O4 . Both thermoset polymers absorbed approximately equal amounts of distilled water. The resistance of cuved samples with DDS in acetone was better than samples cured with DDS. The chemical resistanceof the samples in 30% H2SO4 and 50% NaOH were approximately identical. The structure of the nanocomposites and dispersion of the E- CuFe2O4 in the nanocomposites were observed using SEM

Keywords: CuFe2O4, Epoxy Resin, Nanocomposite, Synthetic cure