Browsing Chemical Engineering by Author "Macheca, Afonso"

Browsing Chemical Engineering by Author "Macheca, Afonso"

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  • Macheca, Afonso; Focke, Walter Wilhelm; Kaci, Mustapha; Panampilly, B.; Androsch, R. (Wiley, 2018-10)
    Polyamide 11‐based bionanocomposites were prepared by melt compounding with 10 wt% clays of different chemistry and morphology. This included vermiculite nanoflakes obtained by consecutive thermal and ultrasonic exfoliation ...
  • Macheca, Afonso; Focke, Walter Wilhelm; Muiambo, H.F. (Herminio Francisco); Kaci, Mustapha (Elsevier, 2016-01)
    Sub-micron thick flakes were obtained by sonication of vermiculite that was first exfoliated by either thermal shock or chemical treatment with hydrogen peroxide. Dimer fatty acid polyamide nanocomposites with a mixed ...
  • Macheca, Afonso; Gnanasekaran, Dhorali; Focke, Walter Wilhelm (Springer, 2014-03)
    Polyamide bio-nanocomposites were successfully prepared using a surfactant-free approach. The clay morphology was fixed by dispersing the ammonium ion-exchanged clay in acetic acid. This was mixed with an acetic acid ...