| Titre : |
Resonance disintegration produces ultrafine carbon products from pyrolysis char for use in printing inks |
| Type de document : |
texte imprimé |
| Auteurs : |
Timothy Karpetsky, Auteur |
| Année de publication : |
2001 |
| Article en page(s) : |
p. 73-79 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Tags : |
Résonance 'Onde choc' Désintégration Pneumatique 'Déchet caoutchouc' 'Poudre ultrafine' Pyrolyse Semicoke Préparation 'Noir carbone' 'Pigment minéral' Encre |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Low temperature pyrolysis of shredded automobile tires yields char consisting of carbon particles. This coarse granular material must be size-reduced to be of commercial interest. Traditional milling and grinding techniques have been tried without success. However, a new efficient and inexpensive method, resonance disintegration, consistently converts char to ultrafine carbon products in production rates of one ton per hour. During resonance disintegration, char granules experience multiple high-energy shock waves, resulting in the immediate production of carbon having an average primary particle diameter of 38 nanometers in aggregates and agglomerates ranging in size from 100 nanometers to 10 microns. Over 70% of the carbon particulate volume is below one micron when dispersed in water. Very rapid surface treatment of particulates can be accomplished, as coarse material is size-reduced using resonance disintegration. The uses of these new carbon products as black pigments in printing inks are also described. |
| Note de contenu : |
PYROLYTIC CHAR
RESONANCE DISINTEGRATION (RD)
RESONANCE DISINTEGRATION OF CARBON BLACK AND PYROLYTIC CHAR : Particle size distribution - Pyrolytic char
MORPHOLOGY OF PYROLYTIC CHAR BEFORE AND AFTER RESONANCE DISINTEGRATION
PHYSICAL PROPERTIES OF CHAR AFTER RESONANCE DISINTEGRATION |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12647 |
in PAINTINDIA > Vol. LI, N° 12 (12/2001) . - p. 73-79
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