Inorganic dispersion stability
By small amounts added, Nichigo G-Polymer™ exhibits good dispersion with silica,
alumina and other hydrophilic inorganic compounds.
By small amounts added, it even has good
dispersion with colloidal silica, forming films with outstanding transparency and luster.
【Test conditions】
Anionic colloidal silica/resin=9/1
Disperse mixed anionic colloidal silica /
resin solution with homogenizer (5,000 rpm for 5 min)
After coating PET film using a bar coater, dry at 105℃ for 5 min
The PET film coated with the dispersion liquid was observed using
a microscope.
【Film producing conditions】
Anionic colloidal silica/resin=9/1
Disperse mixed anionic colloidal silica / resin solution with homogenizer (5,000 rpm for 5 min)
After coating PET film using a bar coater, dry at 105℃ for 5 min
Mixture:Anionic colloidal silica/resin=9/1
Silica A:SNOWTEX 20 (Alkaline type) / NISSAN CHEMICAL INDUSTRIES, LTD.
Average perticle size: 10 - 20nm, pH10, Isoelectric point pH2
Silica B:SNOWTEX C (Al treated surface type) / NISSAN CHEMICAL INDUSTRIES, LTD.
Average perticle size: 10 - 20nm, pH8.5 - 9.5, Isoelectric point pH2 -
3
Silica C:SNOWTEX C (Acidic type) / NISSAN CHEMICAL INDUSTRIES, LTD.
Average perticle size: 40 - 50nm, pH2 - 4, Isoelectric point pH2
