MARIA DA CONCEICAO COSTA PEREIRA

MARIA DA CONCEICAO COSTA PEREIRA

(Fonte: Lattes)

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Possui graduação em Química Industrial pela Escola Superior de Química Oswaldo Cruz (1984), Mestrado pelo Instituto de Pesquisas Energéticas e Nucleares - USP (1997) e Doutorado pelo Instituto de Pesquisas Energéticas e Nucleares - USP (2006). Atualmente é pesquisadora do Instituto de Pesquisas Energéticas e Nucleares. Possui experiência na área de Química e Engenharia Nuclear, atuando principalmente nos seguintes temas: detectores de radiação, tempo de decaimento de luminescência, cintilação e crescimento de cristais cintiladores inorgânicos. Orientadora de Mestrado (Texto extraído do Currículo Lattes em 16 nov. 2021)

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Reactive Blue 21 exhaustion degree investigated using the surface response methodology as an auxiliary tool in cotton dyeing
2021 - ROSA, JORGE M.; MELO, CAMILA G.; PEREIRA, MARIA da C.C.; BORRELY, SUELI I.
Response surface methodology was used to investigate the influences of sodium chloride (NaCl), soda ash (Na2CO3), and sodium hydroxide (NaOH) concentrations on cotton and the degree of exhaustion (DE) of Reactive Blue 21 dyestuff (RB21), as well as to optimize dyeing conditions. A 23 central composite and rotational design was used as a support to carry out 17 dyeings with RB21 on a 100% knitted cotton substrate. NaCl, Na2CO3, and NaOH concentrations were used as factors. Responses comprised color strength (K S‒1) and the DE. The results indicate that a square model was the best fit. This model was able to increase both K S‒1 and DE values, with the colorfastness to water and rubbing carried out with supplier’s formulation recipe. This study demonstrates that the use of the response surface methodology in color matching can contribute to the textile industry in the prediction or assessment of formulations for a speciﬁc color.
Toxicity and environmental impacts approached in the dyeing of polyamide, polyester and cotton knits
2019 - ROSA, JORGE M.; GARCIA, VANESSA S.G.; BOIANI, NATHALIA F.; MELO, CAMILA G.; PEREIRA, MARIA C.C.; BORRELY, SUELI I.
Three colouration process was analyzed, in which consumption of water, the spent of electrical and thermal energy, emission of carbon dioxide besides effluent toxicity of dyeing of polyamide, cotton and polyester knits were approached. the dyeing of polyamide knit presented lowest consumption of electrical energy, the dyeing of polyester knit presented the lowest consumption of thermal energy and emission of co2 molecules into atmosphere, and the effluent of cotton dyeing presented lowest acute toxicity (CE50) to Daphnia similis.