carbon black (CB, 25.0 g), DE-22 (9.5 g), and deionized water (65.5
g) and continuously grinding (2000 rpm) for 120 min.
The liquid
Disperse Blue 79 (DB-79), Disperse Orange 288 (DO-288), and Disperse
Violet 93 (DV-93) were prepared in the same way as DB.
The rheology
of liquid dyes was tested on a Rheolab QC rotational
rheometer (Austria Anton-Paar China Co., Ltd., Shanghai, China). The
test conditions were 0 # rotor, temperature 20 °C, and shear
rate 0.1–1000 s–1. The shear stress (y, Pa) and shear rate (x, s–1) were analyzed using a linear equation (
mPa·s) and shear rate (x, s–1) were analyzed using the Morgan–Mercer–Florin model
(
electron microscopy (TEM)
was tested on an H-9500E TEM (Hitachi, Ltd., Tokyo, Japan) or an FEI
Tecnai F20 TEM (FEI, Ltd.). The purpose is to observe the interaction
of the dye, carbon black, and dispersant.