Browsing by Author "Prof. Dr. Zulifqar Ali"

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    Effect of Silane Modification on the DispersionBehavior of Halloysite Nanotubes in Rubber Matrix
    (Library Information Services COMSATS University Islamabad Lahore Campus, 2023-02-27) Sehrish Nisar; SP22-R06-032; Prof. Dr. Zulifqar Ali; LHR TP 8668
    By promoting the dispersion of modified HNTs inside the rubber matrix, the goal is to improve the mechanical and thermal characteristics of the resultant nanocomposites for damping application. Si69 and APTES, two silane-coupling agents, are utilized to alter the surface of HNTs by creating covalent connections between silanes and hydroxyl groups. By making this alteration, the hydrophobic Bromo butyl rubber matrix is more feasible, which improves the overall performance of the nanocomposites. Improved interfacial adhesion, increased dispersion of HNTs in the non-polar Bromo butyl rubber matrix, and the insertion of certain functional groups on the HNT surface are only a few benefits of silane modification. The research on silanes, Si69 and APTES, for the modification of halloysite nanotubes (HNTs) and their dispersion in Bromo butyl rubber (BIIR) is covered in this abstract. It is important to achieve uniform dispersion of silane-modified HNTs in Bromo butyl rubber; difficulties related to silane loading optimization, processing conditions, and preserving the rubber matrix integrity during dispersion are discussed. Various characterization methods, including Universal testing Machine (UTM), Thermogravimetric Analysis (TGA) and scanning electron microscopy (SEM), are utilized to evaluate the morphology and chemical interactions of the modified HNTs and BIIR composites. For applications like dampe