Zeta potential decreased from 38.6 mV to 23.7 mV over a pH range of 3.3 to 11.7 in the presence of 0.5 mmol/L CTAB and the average size of ink particles increased by 13 nm.

• pH对CTAB的作用效果有较大影响；当CTAB浓度为0.；5 mmol/L时；将体系pH从初始值3