Article

Influence of dispersing additives on the conductivity of carbon black pigment dispersion

Journal of Coatings Technology and Research (impact factor: 1.12). 05/2012; 8(5):553-561. DOI:10.1007/s11998-011-9330-5 pp.553-561

ABSTRACT The influence of dispersing additives on the electrical conductivity of carbon black pigments dispersed in an organic medium
was studied. Two dispersing additives were examined in combination with two different carbon blacks, a conductive carbon black
and a nonconductive one. These carbon blacks differ in the size of their aggregates and in the amounts of surface oxygen groups.
Both of the additives form a monolayer when adsorbed on either of the pigment surfaces. FTIR studies showed that chemical
bonding of one of the additives on the surfaces of both pigments had occurred. Conductivity decreases with increasing additive
concentration, but in the case of the chemically bonded additive, the conductivity of the dispersion remained high even at
higher additive loadings. This study helps in understanding the effects such additives have on the specific conductivity of
composite materials that contain dispersed carbon black pigment particles.

KeywordsCarbon black–Dispersion–Adsorption–Conductivity

0 0
 · 
0 Bookmarks
 · 
40 Views
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.

Keywords

additives form
 
aggregates
 
carbon black pigment particles
 
carbon black pigments
 
carbon blacks
 
composite materials
 
conductive carbon black
 
Conductivity decreases
 
different carbon blacks
 
dispersing additives
 
electrical conductivity
 
FTIR studies
 
higher additive loadings
 
KeywordsCarbon black–Dispersion–Adsorption–Conductivity
 
monolayer
 
organic medium
 
pigment surfaces
 
pigments
 
specific conductivity
 
surface oxygen groups