Browsing Engineering, Built Environment and Information Technology by UP Author "Nhlapo, N.S. (Nontete Suzan)"

Browsing Engineering, Built Environment and Information Technology by UP Author "Nhlapo, N.S. (Nontete Suzan)"

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  • A critical assessment of the methods for intercalating anionic surfactants in layered double hydroxides 
    Moyo, Lumbidzani; Nhlapo, N.S. (Nontete Suzan); Focke, Walter Wilhelm (Springer, 2008-08)
    Anionic surfactant intercalated layered double hydroxides (LDH) of high purity are easily prepared via direct coprecipitation and also by the ion exchange method provided that the precursor contains a monovalent anion, ...
  • Degradation of insecticides used for indoor spraying in malaria control and possible solutions 
    Sibanda, Mthokozisi Mayibongwe; Focke, Walter Wilhelm; Labuschagne, F.J.W.J. (Frederick Johannes Willem Jacobus); Moyo, Lumbidzani; Nhlapo, N.S. (Nontete Suzan); Maity, Arjun; Muiambo, H.F. (Herminio Francisco); Massinga, Pedro Horacio; Crowther, N.A.S. (Nicolaas Andries Sadie), 1944-; Coetzee, Maureen; Brindley, Gordon W.A. (BioMed Central, 2011-10-18)
    BACKGROUND: The insecticide dichloro-diphenyl-trichloroethane (DDT) is widely used in indoor residual spraying (IRS) for malaria control owing to its longer residual efficacy in the field compared to other World ...
  • Mn2Al-LDH- and Co2Al-LDH-stearate as photodegradants for LDPE film 
    Magagula, Bheki; Nhlapo, N.S. (Nontete Suzan); Focke, Walter Wilhelm (Elsevier, 2009-03)
    The layered double hydroxides (LDH) Mn2Al-LDH-stearate and Co2Al-LDH-stearate were prepared by a surfactant-assisted intercalation of the corresponding precursor LDH-CO3 forms. These compounds were evaluated as potential ...
  • TGA-FTIR study of the vapors released by triethylamine-acetic acid mixtures 
    Nhlapo, N.S. (Nontete Suzan); Focke, Walter Wilhelm; Vuorinen, Eino (Elsevier, 2012-10)
    Proprietary mixtures of amines and carboxylic acids are used as volatile corrosion inhibitors (VCIs) for the protection of iron and steel components against atmospheric corrosion. This study was focused on the nature of ...
  • Thermal analysis and FTIR studies of volatile corrosion inhibitor model systems 
    Focke, Walter Wilhelm; Nhlapo, N.S. (Nontete Suzan); Vuorinen, Eino (Elsevier, 2013-12)
    Model compounds simulating amine–carboxylic acid-based volatile corrosion inhibitors were characterized by thermogravimetric analysis and Fourier transform infrared spectroscopy. These systems are usually employed as ...
  • Thermal properties of lauric- and stearic acid intercalated layered double hydroxides 
    Focke, Walter Wilhelm; Nhlapo, N.S. (Nontete Suzan); Moyo, Lumbidzani; Verryn, Sabine Marie Charlotte (Taylor & Francis, 2010)
    A commercial layered double hydroxide (LDH) with nominal composition [Mg0.689A10.311(OH)2](CO3)0.156.zH2O was intercalated with lauric and stearic acid using a surfactant-assisted method. X-ray diffraction, thermal analysis ...