Graphene heat dissipation baking varnish
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United States of America Patent
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Jun 22, 2017
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Jan 8, 2016
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A highly porous heat dissipation coating by graphene-rich baking varnish consists of: graphene nanoflakes, at least one dispersants, binders, and carriers. The amount of graphene-rich nanoflakes accounts for 10 to 70 wt % of solid composition of a graphene baking varnish. The at least one dispersant is non-ionic or ionic dispersant. The binder is made of thermoplastic polymers. The carrier is selected from aqueous liquids, organic solvents, or a combination thereof. A post-baking treatment at relative high temperature (100 to 400° C.) is applied for enhancing the adhesion of heat dissipation coating on metal surface. Accordingly, the graphene-rich baking varnish enhances adhesion and improves heat dissipation rate by convection and radiation.
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