Author:Roro, Kittessa T; Mwakikunga, Bonex W; Forbes, A; Tile, N; Yalisi, BDate:Sep 2010Multi-walled carbon nanotube (MWCNT)/Nickel oxide nanocomposites were prepared on aluminum substrates for selective solar absorber applications. MWCNTs are functionalized in order to disperse in water and ethanol. Results from the characterization ...Read more
Author:Motloung, Mpho P; Ojijo, Vincent O; Bandyopadhyay, Jayita; Ray, Suprakash SDate:Jul 2019The interest in designing new environmentally friendly materials has led to the development of biodegradable foams as a potential substitute to most currently used fossil fuel–derived polymer foams. Despite the possibility of developing ...Read more
Author:Raji, Sadiq Abiola; Popoola, API; Pityana, Sisa L; Popoola, OMDate:Jul 2020The high strength-to-weight ratio property of titanium aluminide (TiAl) based intermetallic alloys makes researchers regard this type of material as a potential replacement for the heavier superalloys of nickel. These alloys have been applied ...Read more
Author:Ojijo, Vincent O; Ray, Suprakas S; Sadiku, RDate:May 2014Polylactide (PLA) and poly[(butylene succinate)-co-adipate] (PBSA) were reacted by being blended in a batch mixer in the presence of a chain extender, triphenyl phosphite (TPP), and two different types of organically modified clays—a ...Read more
Author:Varaprasad, K; Reddy, SM; Jayaramudu, J; Sadiku, R; Ramama, K; Ray, Suprakas SDate:2014The present scientific research resulted in the development of novel microbial resistant inorganic nanocomposite hydrogels, which can be used as antibacterial agents. They are promising candidates for advanced antimicrobial applications in ...Read more
Author:Naidu, Darrel S; Mathew, Maya JDate:Oct 2020In this study, xylan–alginate-based films were reinforced with nanoclays (bentonite or halloysite) by the solvent casting technique. The effect of the nanoclay loadings (1–5 wt %) on various properties—mechanical, optical, thermal, solubility, ...Read more
Author:Mhlabeni, Thobile L; Kesavan Pillai, Sreejarani; Ray, Suprakas SDate:Nov 2019In this study, poly(lactic acid) (PLA)/poly[(butylene succinate)-co-adipate] (PBSA) blend and its nanocomposites with layered double hydroxides (LDH) containing surface stearic acid functional groups (SaLDH) were prepared using the extrusion ...Read more
Author:Bandyopadhyay, J; Ray, SS; Bousmina, MDate:Aug 2007The preparation and thermal and thermo-mechanical properties of nanocomposites based on liquid-crystalline polymers (LCP) and organically-modified layered silicate (OMLS) is described. From XRD patterns, very little smectic ordering is present ...Read more
Author:Ramontja, J; Ray, SS; Kesavan Pillai, Sreejarani; Luyt, ASDate:Jan 2011This paper discusses various properties of Poly(lactide) upon nanocomposite formation with functionalized multiwalled carbon nanotubes (f-MWCNTs). The composite was prepared through melt extrusion technique. Functionalization of carbon nanotubes ...Read more
Author:Skosana, Sifiso J; Khoathane, C; Malwela, ThomasDate:Jan 2020Low adhesion strength of polyurethane coating to a steel substrate is often attributed to poor steel preparation. However, the ratio of diisocyanate/polyol and dispersion of fillers within a polyurethane coating matrix influence the adhesion ...Read more
Author:Ray, Suprakas SDate:Jul 2013In recent years, the development of eco-friendly polymeric materials with balanced properties has become a subject of research attention due to concerns with increasing global-warming, carbon-emission, and limited natural resources. ...Read more
Author:Kesavan Pillai, Sreejarani; Ray, SSDate:Apr 2011Epoxy or polyepoxide is a thermosetting epoxide polymer that cures (polymerizes and cross-links) when mixed with a curing agent or "hardener". Most common epoxy resins are produced from a reaction between epichlorohydrin and bisphenol-A. A ...Read more
Author:Kesavan Pillai, Sreejarani; Ray, Suprakas SDate:Apr 2011Epoxy or polyepoxide is a thermosetting epoxide polymer that cures (polymerizes and cross-links) when mixed with a curing agent or "hardener". Most common epoxy resins are produced from a reaction between epichlorohydrin and bisphenol-A. A ...Read more
Author:Roro, Kittessa TDate:Jul 2011This presentation explores solar thermal energy for harnessing solar energy for thermal energy (heat). Solar thermal collectors for water heating use a spectrally selective surface that absorb sunlight and convert it to heat. The presentation ...Read more
Author:Mittala, H; Maity, Arjun; Ray, Suprakas SDate:Feb 2016Biodegradable hydrogel nanocomposites (HNC) of gum karaya (GK) grafted with poly(acrylic acid) (PAA) incorporated silicon carbide nanoparticles (SiC NPs) were synthesized using the in situ graft copolymerization method and tested for the ...Read more
Author:Chauke, VP; Maity, Arjun; Chetty, ADate:Jul 2015Graphene oxide (GO) was functionalized with alpha cyclodextrin (aCD) through a covalent bond to form GO-aCD nanocomposites (NC). GO-aCD NC was further modified with polypyrrole (PPY) to afford an advanced GO-aCD-PPY NC for the removal of ...Read more
Author:Morajane, D; Ray, Suprakas S; Sinha Roy, Jayita; Ojijo, Vincent ODate:Feb 2018Processing conditions (e.g., temperature profile, feed point, screw speed, feed rate, and screw element configuration) and how nanocomposites are prepared in the extruder have a vital effect on the dispersion of nanoclay. The resultant ...Read more
Author:Gbadeyan, OJ; Adali, BJ; Bright, G; Sithole, Bishop BDate:Jun 2021The current study investigates the reinforcement properties of novel nano-calcium carbonate (nano-CaCO(sub3)) synthesized from Achatina fulica snail shell. The shell was wet-milled to nanoparticle sizes using mechanochemical procedures. Epoxy ...Read more