All of these products use composite materials in which the silver is embedded in a polymer matrix. īesides the use of metals in the form of thin films, the use of silver has also been introduced in various materials acting as a biocide agent, such as appliances with silver films, tissues, bandages soaked in silver for burns etc. Such studies aim to improve adhesion of the metal in the polymer and prevent its degradation. In this respect, many efforts have been made by researchers aiming to control the microstructure and thermal stability in the interface between metal and polymer. Therefore, harm to the final product may occur if there is, for example, a breakdown of the structures or diffusion of small amounts of metal into the polymer. In the area of microelectronics, for example, especially regarding the processing of electronic components, there is a need to expose them to relatively high temperatures. The improvement of these characteristics has stimulated intensive research by the scientific community for decades. The thin film formed from metallization plays a vital role in integrated devices and circuits since the deposited films must have good adhesion, low resistivity and provide good coverage. The study of the metallization of polymers is considered to be of the utmost importance from the point of view of fundamental science as well as from a technological standpoint since this process has been widely used in a range of products: reflectors for car headlights, CDs (storage data), protective packaging for electrical components, coating for food packaging and especially in microelectronics. Keywords: Epoxy resin (DGEBA), silver nanoparticles, Atomic Force Microscopy, Raman spectroscopy, ion sputtering, X-ray diffraction. However, XRD results indicated that the crystallite size remained almost constant while the appearance of peaks corresponding to other crystalline orientations suggests the coalescence of the original crystallites and an increase in size of the more dense planes, namely. An increase in the coverage led to an increase in the grain size as indicated by AFM. The AFM results showed the formation of silver crystallites on the surface of DGEBA at very low coverage whereas XRD indicated that most of them had their main axis aligned to the normal of the surface. Silver thin films were also analyzed using X-ray diffraction (XRD) at room temperature. Both the initial film of DGEBA and the subsequent silver thin film were analyzed by Atomic Force Microscopy (AFM) in the non-contact mode. Silver thin films of 5, 10, 15 and 20 nm were deposited on the epoxy resin at room temperature. The films of DGEBA and its precursors were characterized by Raman spectroscopy to identify the main functional groups and their relationship with the deposited silver atoms. IIPrograma de Pós-graduação em Ciência e Engenharia de Materiais, Universidade Federal de SergipeĬEP 49100-00, Rosa Elze, São Cristóvão, SE, this work, silver atoms were deposited by ion sputtering on the surface of diglycidyl ether of bisphenol A (DGEBA) epoxy resin cured at 150 ☌ for 6 hours in air. IPrograma de Pós-graduação em Física, Universidade Federal de Sergipe José Elisandro de Andrade I Rogério Machado I Marcelo Andrade Macêdo I Frederico Guilherme Carvalho Cunha II Įpoxy resin (DGEBA) silver nanoparticles Atomic Force Microscopy Raman spectroscopy ion sputtering X-ray diffractionĪFM and XRD characterization of silver nanoparticles films deposited on the surface of DGEBA epoxy resin by ion sputtering In this work, silver atoms were deposited by ion sputtering on the surface of diglycidyl ether of bisphenol A (DGEBA) epoxy resin cured at 150 ☌ for 6 hours in air.
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