M. Olteanu et al., STABILIZATION OF SOLID-LIQUID SUSPENSIONS, Colloids and surfaces. A, Physicochemical and engineering aspects, 80(2-3), 1993, pp. 127-130
The stability of colloidal graphite dispersions was investigated. A mi
xed stabilizer (CELAD) consisting of a non-ionic cellulose derivative
and an anionic polymer was used to facilitate the grinding process and
to stabilize the aqueous dispersions. Measurements of turbidity, ultr
amicroscopy and scanning electron microscopy were carried out to deter
mine the size of the particles. Adherent films were obtained by sprayi
ng the dispersions onto glass plates. The 20 mum thick films had an el
ectrical resistance within the 20-40 OMEGA cm-1 range. They proved to
be suitable for spray application onto the exernal glass cone of catho
de ray tubes.