Faraz NoorFA22-R06-024Dr. Sadaf-UL-HassanLHR TP 93182026-02-272025https://repository.cuilahore.edu.pk/handle/123456789/2420NBR is extensively used in various applications such as automotive, seals and gaskets, cable insulation and protective gloves etc. However, its high flammability limits its application in many fields. Nano-clays hold a significant position among the nano flame retardant filler in the domain of polymer composites due to high surface to volume ratio that required less amounts of nano-clay to obtain require properties. They possess a potential to increase the flame retardant, thermal durability as well as improve their mechanical strength of polymers. Halloysite nanotubes (HNTs) are naturally biodegradable flame retardant material. Halloysite nanotubes (HNTs) possess a nanotubular structure within the context of 1:1 clay. HNTs show inadequate dispersibility and weak interfacial interaction when integrated with polymers. To solve this problem, silane treatment was introduced which used 3 aminopropyltriethoxysilane (APTES), formed functionalized halloysites nanotubes (fHNTs) and subsequently utilized as a substrate to immobilize H4SiW12O40. The final nanofiller was prepared which confirmed by Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and X-ray diffraction (XRD). Different rubber nanocomposites samples NBR-0 ,NBR-1, NBR-3, NBR-5, NBR -7, NBR 7HNTs, NBR-7POMs and NBR-10 were prepared by varying amount of nanofiller into NBR via melt blending in an internal mixer. The structural and morphological characteristics of these composites were analyzed by using SEM , FTIR , Raman spectroscopy and XRD. The mechanical property was characterized by using universal testing machine (UTM) and flame retardant property was evaluated by using UL-94, NBR-10 falls under the category of V-2 due char formation and gas particle which delay fire ignition phenomenon.enNATURAL SCIENCES::ChemistryDr. Sadaf-UL-HassanEnhancing the Flame Retardancy of Nitrile Butyl Rubber using Polyoxometalates Modified by Functionalized Halloysite NanotubesThesis