Philippine Journal of Science
151 (2): 695-707, April 2022
ISSN 0031 – 7683
Date Received: 03 Nov 2021

Review on the Feasibility of Clay Utilization
in Pigment Dispersion

Joshua C. Castillo and David P. Penaloza Jr.*

Department of Chemistry, College of Science,
De La Salle University, 2401 Taft Avenue, Manila 0922 Philippines

*Corresponding author: david.penaloza.jr@dlsu.edu.ph

 

[Download]
Castillo J, Penaloza D. 2022. Review on the Feasibility of Clay Utilization in Pigment
Dispersion. Philipp J Sci 151(2): 695–707. https://doi.org/10.56899/151.02.12

 

ABSTRACT

In paint formulation, dispersants are vital additives that facilitate the efficient dispersion of organic pigments during paint production. However, because of stricter regulations and scrutiny of common industrial dispersants such as alkylphenol ethoxylates (APEs) due to public health concerns and environmental impact, viable alternatives like green dispersants are greatly being explored for the paint and coating industry. Clays have long been used in various applications due to their versatile surface and rheological properties. Moreover, they have been recently shown to be efficient as a dispersing material. Various works in the literature revealed their capability in dispersing nanomaterials at low concentrations such as carbon nanomaterials (Hwang et al. 2009; Ivanoska-Dacikj et al. 2017; Kelessidis 2017; Lan and Lin 2009; Loginov et al. 2012; Pai et al. 2006; Yaroshchuk et al. 2014), metallic nanoparticles (Dong et al. 2009), polymers (Lan et al. 2010), and pigments (Lan and Lin 2011). This review paper evaluates the feasibility of using clays as a potential new class of green dispersants with emphasis on their application in aqueous pigment dispersions.