The fabrication and technical applications of multifunctional materials

The ability for materials to respond to the needs in a useful manner has broad technological impact. Such "smart" systems are being developed in which material properties (such as mechanical, electrical, optical or magnetic characteristics) respond to external stimuli. Composite materials are ideally suited to achieve multi functionality since the best features of different materials can be combined to form a new material that has a broad spectrum of desired properties. In this study, the aim is to further the investigations of these types of materials and to advance the molecular understanding of novel multifunctional materials for applications across different scientific disciplines. Regarding the production of multifunctional materials; 4 types of materials will be added to polymer matrix to obtain those properties to the final product; antibacterial painting/coating, radar absorbing materials, self-healing materials and flame retardant material. In this research, an epoxy dye was converted to a multifunctional material which is capable of performing multiple functions. In order to reinforce the polyurethane/epoxy dyes, Ag nanoparticles, huntite/hydromagnesite minerals, barium hex ferrite particles and chitosan were utilized for multifunction property. Adding by those materials to the polymer matrix with different loading level and coating the substrates, different types of coated samples are obtained. Subsequently the samples were characterized by antibacterial tests, flame retardant tests, radar absorbing tests and self-healing tests. It was concluded that these materials exhibited a synergetic beneficial effects.