Epoxy-carbon nanomaterial based coating and method for preparing the same

摘要

The invention provides method for preparing an epoxy-carbon nanomaterial coating which includes a base of a two-pack epoxy coating material, a hardener of the two-pack epoxy coating material and about 0.0125 wt % to about 0.2 wt % of carbon nanomaterial. The invention also provides a method for preparing the epoxy-carbon nanomaterial coating. More specifically, the invention provides a method for preparing epoxy based coating materials as anti-corrosive coating composition.

主权项

1. A method for preparing an epoxy-carbon nanomaterial based coating, the method comprising:
mixing carbon nanomaterial with a base of a two-pack epoxy coating material to prepare a dispersion; and mechanically mixing the dispersion with a hardener of the two-pack epoxy coating material with a speed of about 300 to about 800 rpm for a period of about 5 minutes to about 15 minutes, wherein a weight ratio of the carbon nanomaterial in the epoxy-carbon nanomaterial based coating is about 0.0125 weight percent (wt %) to about 0.2 wt. %, wherein the carbon nanomaterial is mixed with the base of the two-pack epoxy coating material using at least one of (1) an ultrasonic bath treatment and (2) a non-ionic surfactant technique; wherein the ultrasonic bath treatment (1) comprises mixing the carbon nanomaterial with a solvent to prepare a mixture; treating the mixture in an ultrasonic bath for a period of about 5 minutes to about 30 minutes at room temperature and stirring the mixture with the base of the two-pack epoxy coating material for a period of about 5 minutes to about 30 minutes and at a speed of about 500 rpm to about 3000 rpm; and wherein the non-ionic surfactant technique (2) comprises dissolving a surfactant with a solvent to prepare a surfactant-solvent solution, mixing the carbon nanomaterial with the surfactant-solvent solution for a period of about 5 minutes to about 30 minutes at room temperature to prepare a mixture, and stirring the mixture with the base of the two-pack epoxy coating material for a period of about 5 minutes to about 30 minutes and at a speed of about 500 rpm to about 3000 rpm.