| Titre : |
Influence of dispersing additives on the conductivity of carbon black pigment dispersion |
| Type de document : |
texte imprimé |
| Auteurs : |
Nina Hauptman, Auteur ; Marta Klanjsek Gunde, Auteur ; Matjaž Kunaver, Auteur ; marija Bešter-Rogac, Auteur |
| Année de publication : |
2011 |
| Article en page(s) : |
p. 553-561 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Adsorption
Conduction électrique
Dispersions et suspensions
Fourier, Spectroscopie infrarouge à transformée de
Noir de carbone
|
| Index. décimale : |
667.2 Colorants et pigments |
| Résumé : |
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. |
| Note de contenu : |
EXPERIMENTAL : Materials - Size distribution of CB - Preparation of dispersions - Adsorption measurements - Conductivity measurements of suspensions - Infrared spectroscopy
RESULTS AND DISCUSSION : Size distribution of CB particles - Adsorption - Specific conductivity of dispersions - FTIR studies of the dispersant's interactions with the CB surface |
| DOI : |
10.1007/s11998-011-9330-5 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-011-9330-5.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12231 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 8, N° 5 (10/2011) . - p. 553-561
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