BINDER SYSTEMS

摘要

A composition use in preparing an ordered carbon-containing material includes a binder phase having at least one polymerisable resin and particles of solid material that are wetted by the binder phase. The binder phase may optionally include a polymerisation promoter and/or a solvent. The granulometry of the solid particles, the viscosity of the binder phase and the relative amounts of solid and binder phase are controlled such that thorough mixing of the solid particles and binder phase results in a thin layer of binder phase coating the particles. Pyrolysis of the resulting mixture at 800 - 1,200 DEG C will produce an ordered, carbon-containing material. The method for preparing articles from the composition includes mixing the binder phase and solid particles, shaping to a desired shape, curing and pyrolysing at 800 - 1,200 DEG C. Ordered, carbon-containing materials are obtained at much lower temperature than previously and the carbon-containing materials so obtained are resistant to disruption by alkali metals such as sodium. The composition and method are especially suitable for preparing cathodes for use in aluminium smelting cells.