Preparation of stable nanotube dispersions in liquids

Details Preparation of stable nanotube dispersions in liquids Preparation of stable nanotube dispersions in liquids

D - Textiles, Paper

01

F

D01F 9/12 (2006.01) D01F 9/127 (2006.01)

Patent

CA 2470113

The introduction of nanotubes in a liquid provides a means for changing the physical and/or chemical properties of the liquid. Improvements in heat transfer, electrical properties, viscosity, and lubricity can be realized upon dispersion of nanotubes in liquids; however, nanotubes behave like hydrophobic particles and tend to clump together in liquids. Methods of preparing stable dispersions of nanotubes are described and surfactants/dispersants are identified which can disperse carbon nanotubes in aqueous and petroleum liquid medium. The appropriate dispersant is chosen for the carbon nanotube and the water or oil based medium and the dispersant is dissolved into the liquid medium to form a solution. The carbon nanotube is added to the dispersant containing the solution with agitation, ultrasonication, and/or combinations thereof.

Selon l'invention, l'introduction de nanotubes dans un liquide permet de modifier les propriétés physiques et/ou chimiques de ce liquide. En effet, la dispersion de nanotubes dans des liquides permet de réaliser des améliorations en termes de transfert de chaleur, de propriétés électriques, de viscosité et de pouvoir lubrifiant. Toutefois, les nanotubes réagissent comme des particules hydrophobes et tendent à s'agglomérer dans les liquides. L'invention concerne des procédés destinés à préparer des dispersions stables de nanotubes et consistant à identifier des tensioactifs/dispersants pouvant disperser les nanotubes de carbone dans un milieu liquide aqueux ou à base de pétrole. Un dispersant approprié est choisi pour le nanotube de carbone et le milieu à base d'eau ou d'huile, ce dispersant étant dissous dans le milieu liquide, d'où la formation d'une solution. On ajoute alors le nanotube de carbone au dispersant contenant la solution par agitation, ultrasonication et/ou des combinaisons correspondantes.

Affiliated with

Also associated with

Rating

Preparation of stable nanotube dispersions in liquids does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of stable nanotube dispersions in liquids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of stable nanotube dispersions in liquids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1461526