Comparação da eficiência da escovação na rápida mudança de cor em parede externa pela aplicação de dispersão de nano-TiO2 e de solução de NaClO
DOI:
https://doi.org/10.46421/entac.v19i1.2047Keywords:
TiO2, Hipoclorito de sódio, Autolimpeza, Manchamento, Mudança de corAbstract
The degradation of building coatings through stains is common in urban centers, mainly due to air pollution. Aiming at such problem, this work seeks to compare the efficiency of cleaning by brushing through the spraying of nano-TiO2 and a solution of NaClO in mortar coating with white acrylic paint in a building located in Porto Alegre. The applications were carried out in places with and without previous cleaning by brushing. The analysis methods used were spectrophotometry and software image analysis. The results indicate the greatest color change in the treatment with TiO2, followed by NaClO, both with previous cleaning.
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