Publications by authors named "Rafik Abbas"
In the modern era, with the rapid growth of various industries, the issues of energy crisis and environmental pollution have garnered increasing attention. One significant source of industrial pollution is printing and dyeing wastewater. This wastewater often contains dyes that have aromatic structures and azo groups, such as Methyl orange (MO), which are both toxic and difficult to degrade.
View Article and Find Full Text PDFThe present study introduces a new and straightforward method for the amination of Chitosan. This method involves coupling Chitosan (CS) with 2-chloroethylamine (ENH2) in a single step to produce an amino-ethyl Chitosan derivatives with increased amine group content (CS-ENH2) using click chemistry. The resulting derivatives were then crosslinked using Glutaraldehyde to form amino-ethyl Chitosan Schiff bases.
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- PEEK is emerging as an alternative to metal implants in orthopedics and dentistry, with a focus on improving its bonding properties through surface modifications.
- The research investigates how adding varying amounts (10, 20, 30 wt%) of nano-silica fillers affects the surface and mechanical properties of PEEK nanocomposites.
- Results indicate that low concentrations of hydrophobic nano-silica enhance the mechanical strength and surface attributes of PEEK, making these nanocomposites promising for orthopedic and dental applications.