Journal of Engineering and Applied Sciences
ISSN: Online 1818-7803ISSN: Print 1816-949x
Abstract
Water-based paints with natural dyes are interesting to investigate, in particular with a view to the reduction of defects. This study aims also to report on the properties of water-based paints containing natural dyes of Ceriops candolleana Arn. in the context of parameters such as total solids, hiding power, drying time and gloss. The water-based paints were formulated from acrylic resin, water, polyethylene glycol and surfactant. The natural dyes and filler used were C. candolleana and TiO powders, respectively. The sizes of the natural 2 dye powders were examined using a particle size analysis instrument. The water-based paints were formulated with various concentrations of Pigment Volume Concentration (PVC) varying from 2.9-22.7%. The Filler Volume Concentration (FVC) used was 0, 1.4 and 2.8%. The results show that the water-based paints formulated using natural dyes from C. candolleana suffered defects such as agglomeration, bubbling and cracking. These defects were strongly affected by the concentrations of PVC and FVC. Water-based paints with fewer defects could be achieved, however, by formulating the paint with concentrations of PVC and FVC below 8 and 2.8%, respectively. The total solids, hiding power, drying time and gloss from the water-based paints with C. candolleana natural dyes were 40-46%, 5.8-13.7 m2/L, 40-95 min and 9.5-56.6 GU, respectively and as such satisfied the SNI Standard 3564: 2009 for paints.
How to cite this article:
Catur Harsito and Suyitno . Reducing Defects in Water-Based Paint with Natural Dyes.
DOI: https://doi.org/10.36478/jeasci.2018.1291.1297
URL: https://www.makhillpublications.co/view-article/1816-949x/jeasci.2018.1291.1297