Carica papaya L. is frequently found in northern and northeastern Brazil, the Caribbean Central America. The seed oil was extracted using Soxhlet extraction. Its has low acidity, iodine index, saponification peroxide values adequate comparable to other commercially available vegetable oils. lipid profile of this also obtained by gas chromatography; thermal characterization performed thermogravi...

The influence of mechano-ultrasonic activation (MUA) and nano-additives (carbon nanotubes-CNT) on the interaction pathway nickel–aluminum powder mixture at high heating rates was investigated. optimum conditions activation, along with phase structure formation peculiarities nickel–aluminum–carbon nanotubes mixtures by thermal analysis method, so-called high-speed temperature scanner (HSTS), wer...

Carbohydrates as a component in adhesive formulations have been reported for many years. A rapid cure at moderate temperatures is remaining challenge the development of renewable adhesives. Rheology provides insight into all stages structure formation cured polymer. This work analyses curing carbohydrate-amine adhesives with and without addition 5-hydroxymethylfurfural (HMF) biomass-derived key...

Field emission scanning electron microscopy (FESEM), two-dimensional X-ray diffraction (2DXRD), and transmission electron microscopy coupled with selected area electron diffraction (TEMSAED) analyses of the reactant/product textural relationship show that the thermal decomposition of Iceland spar single crystals according to the reaction CaCO3(s) → CaO(s) + CO2(g) is pseudomorphic and topotacti...

Surfactants such as quaternary ammonium salts (QAS) have been in increasing demand, for emerging new applications. Recent attempts at process intensification of their production disclosed the need a better understanding QAS thermal stability. This work aims to determine degradation kinetics various QASs and associated solvent effects. The four methyl carbonate were determined polar solvents sta...