Characterization and the Pattern of Surfaces of Sealant with nano size Composite Materials

6th Vacuum and Surface Sciences Conference of Asia and Australia

Quddos, A.^1 ; Samtio, N.H.^1 ; Syed, A.M.^1

Institute of Industrial Control System (IICS), P. O. Box 1398, Rawalpindi, Pakistan^1

关键词: Applied loads;    Epoxy adhesives;    Low viscosity;    Polymer composite;    Room temperature cured;    Structural applications;    Weak bonding;    Weight ratios;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/439/1/012011/pdf
DOI  :  10.1088/1742-6596/439/1/012011

来源: IOP

【 摘 要 】

Nano composite sealant is low viscosity, room temperature cured, opaque and flowable nature. They have variety of uses such as potting, pressure sealant and shock resistant. Most important factor influencing use of fillers in polymer composites is their ability to effectively transfer the applied load in the matrix. The effective utilization of fillers in composites for structural applications depends strongly on the ability to disperse the nano fillers homogeneously in the matrix without damaging them. R-Belite supper epoxy adhesive (RBSEA) were formulated with different nano fillers (KCl, Al2O3, ZrO2, SiO2, ZrO2) at room temperature. The composite were prepared with the 0.02 to 0.10 weight ratios to promote the nucleation of the nanoparticles in the applied sealant. Two main problems which arise in improving the properties are poor dispersion of the fillers in the composite and weak bonding between nano fillers and the matrix. These problems are solved by mechanical and chemical means. It was observed that mechanical properties like tensile strength, elongation hardness etc and thermal properties were also improved with incorporation of nanofillers in the working applied polymer matrix. The dispersion of nano fillers in polymer matrix is studied by Scanning electron microscopy (SEM). The results confirm the presence of nanomaterial in RBSEA/fillers nanocomposites. SEM is also used to characterize the pattern of surfaces with nano size composite materials.