Table 4.

Zeta potential of BF or BF/copolymer suspension.

Samples	Zeta1 (mV)	Zeta2 (mV)	Zeta3 (mV)	Zetaave (mV)
BF	−32.5	−30.6	−32.6	−31.9
BF + 0.5 wt% PADAD	−39.5	−41.3	−40.1	−40.3
BF + 1.0 wt% PADAD	−34.0	−38.9	−38.7	−37.2
BF + 2.0 wt% PADAD	−37.2	−43.3	−44.8	−41.8
PADAD	−42.1	−38.6	−44.9	−41.9