Dispersion of Inorganic Pigments by Amphiphilic Hyperbranched Polyethers Dispersant

7th Annual International Conference on Materials Science and Engineering

Xu, Qing^1 ; Liu, Yungui^2 ; Long, Anlu^2 ; Zhou, Yuanjing^2

Institute of Biology, Guizhou Academy of Sciences, Guiyang

550009, China^1

Institute of Analysis and Testing, Guizhou Academy of Sciences, Guiyang

550002, China^2

关键词: Branching degree;    Dispersibilities;    Dispersion effect;    Dispersion force;    Dispersion stability;    Hyperbranched polyethers;    Inorganic pigments;    Rheological property;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/562/1/012058/pdf
DOI  :  10.1088/1757-899X/562/1/012058

来源: IOP

【 摘 要 】

The self-made amphiphilic hyperbranched polyethers (AHPs) dispersant were applied to inorganic pigments dispersion system, and their dispersibility to inorganic pigments was investigated. The results showed that AHPs had a good dispersing effect on inorganic pigments. When the branching degree of hyperbranched polyether was 0.47 and the dosage was 9% of the quality of pigment, the dispersing effect of AHP47 on titanium dioxide was the best with the dispersion force as high as 98%. The dispersion stabilities for other inorganic pigments were also studied, and the dispersion effect was titanium white > iron oxide red > titanium nickel yellow > cobalt blue > copper-chromium black. AHPs had the characteristics of high solubility, low viscosity, good rheological properties and no pollution, which provided a new idea for the development of new efficient inorganic pigment dispersants.