| Ion Irradiation of Polymer Metal Composite for Electrical and Structural Engineering Applications N.l. Singh1; Dolly Singh1; Anjum Qureshi2; 1M. S. UNIVERSITY OF BARODA, Vadodara, India; 2SABANCI UNIVERSITY, Istanbul, Turkey; PAPER: 240/Physics/Invited (Oral) SCHEDULED: 15:55/Mon. 28 Nov. 2022/Arcadia 3 ABSTRACT: Polymers such polyvinyl chloride (PVC) filled with metal has attracted much attention because it combines advantages of insulation polymer and conductive metals for a variety of industrial applications such as electrical and electronic for electrical insulation, flame retardants and sheathings of cables and devices, construction materials as plastisol in flooring, roofing, panels, vehicle and in the medical field for prostheses materials for transtibial amputations. In applied industrial applications, the efficient modification of the electrical and physicochemical polymer composite materials is essential to achieve desired functionalities. In this study, swift heavy ion irradiation with 140 MeV Ag-ions was used to modify and tailor the dielectric, structural and thermal properties of polymer composite based on PVC filled with conductive aluminum metal (10-40%). The ion irradiation of PVC/Al composite was modified by manipulating the parameters such as fluence and concentration of Al in polymer composite. The influence of fluence of ion irradiation on PVC polymer composite tailored the dielectric properties by intentional doping of metal ions by inducing defects due to polymeric chain crosslinking and scissoring and charge hopping conduction mechanism. The modified PVC/Al polymeric composite possess improved electrical properties that mainly include dielectric constant, dielectric loss and AC electrical conductivity. Ag ion beam tailored features in PVC composite have been realized by improved crystalline structure in the XRD profile and thermal stability at low fluence of ion irradiation (1x1011 ions cm-2), which are unprecedented in pristine ones. Energetic Ag ion beams implemented agglomeration of doped metal particles in the SEM surface morphology or layer-to-layer structural engineering of PVC/Al surface and create a conductive metal network inside the polymeric structure. Promising applications based on polymeric metal composite materials with ion beam tailored features have the potential to apply them in a broad range of electrical and electronics, transportation, and medical fields. References: (1) NL Singh, S Shah, A Qureshi, A Tripathi, F Singh, DK Avasthi, PM Raole, Bulletin of Materials Science 34 ( 2011) 81-88. (2) A Qureshi, D Singh, NL Singh, S Ataoglu, AN Gulluoglu, A Tripathi, DK Avasthi Nuclear Instruments and Methods in Physics Research Section B: 267 ( 2009) 3456-3460. (3) D Singh, NL Singh, P Kulriya, A Tripathi, DM Phase, Journal of Composite Materials 44(2010) 3165-3178. |
